CN102386963A - Frame configuration method, signal transmission method and frame configuration system with coexistence of communication systems - Google Patents

Frame configuration method, signal transmission method and frame configuration system with coexistence of communication systems Download PDF

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CN102386963A
CN102386963A CN2010102683230A CN201010268323A CN102386963A CN 102386963 A CN102386963 A CN 102386963A CN 2010102683230 A CN2010102683230 A CN 2010102683230A CN 201010268323 A CN201010268323 A CN 201010268323A CN 102386963 A CN102386963 A CN 102386963A
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frame
configuration
lte
symbol
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CN102386963B (en
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宁丁
关艳峰
方惠英
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ZTE Corp
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ZTE Corp
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Abstract

Provided are a frame configuration method, a signal transmission method and a frame configuration system with coexistence of communication systems. A Wimax 16e system and a long term evolution (LTE) system coexist in adjacent channels and adopt time division duplex mode, and the switching period of an LTE frame for up-going and down-going is 10 ms. The frame configuration method comprises the following steps: configuring the length of a frame W' of the Wimax 16e system as 10ms, configuring the number and position of down-going signals in the frame W' and deviation time of the frame W' relative to the LTE frame according to a restraint condition that a down-going area in the frame W' is included in a down-going area of the LTE frame in a time domain, and configuring the number of up-going signals in the frame W' and time length of a TTG according to a restraint condition that an up-going area in the frame W' is included in an up-going area of the LTE frame in a time domain. The method can eliminate inter-interference when the LTE system and the Wimax 16e system coexist in the adjacent channels. The corresponding frame configuration method and the corresponding signal transmission method are further provided.

Description

Frame collocation method, signaling method and system during a kind of coexistence of communication systems
Technical field
The present invention relates to the communications field, the frame collocation method during in particular to a kind of coexistence of communication systems, signaling method and corresponding system.
Background technology
In the wireless communication system, the base station is to point to the equipment that the terminal provides functions such as initial access, professional transmission and resource management, and usually, above-mentioned functions is realized through control channel and administrative messag in the base station.The base station communicates through Uplink/Downlink and terminal, and down link is meant the Radio Link of base station to the terminal, and up link refers to the Radio Link of terminal to base station.
OFDM (Orthogonal Frequency Division Multiplexing abbreviates OFDM as) technology is the high speed transmission technology under a kind of wireless environment, and its pulse duration through escape character improves the performance of anti-multipath decline.The realization principle of OFDM technology is: high-speed serial data is transformed into the parallel data of the relative low speed of multichannel, and this multidiameter delay data-modulated is transmitted to mutually orthogonal subcarrier.It is on the basis of OFDM technology that OFDM inserts (Orthogonal Frequency Division Multiple Access abbreviates OFDMA as) technology, through making the CU different subcarriers, realizes that multiple access inserts.In the wireless communication system that adopts the OFDMA technology, accomplish the mapping and the wireless resource allocation of Radio Resource by the base station.For example; System configuration when the system configuration when confirming the base station to the downlink transfer at terminal and the uplink of resource allocation information and terminal to base station and resource allocation information etc. by the base station; The base station disposes and resource allocation information to the terminal transmitting system through control channel; The terminal receives these information on the control channel of confirming, and then receives and the transmission data, communicates with the base station.In order to keep the base station synchronous with the timing of terminal when communicating by letter, synchronizing signal need be sent to the terminal in descender region in the base station, in the communication standard that has, is called as preamble, leading or synchronizing sequence.
In addition, in order to adapt to various channel conditions, a kind of wireless communication system has kinds of frame, how under the condition of kinds of frame, to guarantee the consistency of the design of control channel, comprises whether the resource location, the number of resources that are used to transmit control channel be consistent; In the same generation communication standard, the plurality of communication systems coexistence, the control channel that how to design separately is also extremely important to guarantee that each communication system can coexist; And; A communication system need continue to support its system, for example usually in last generation in evolution system in evolution; IEEE 802.16m system is the evolution system of IEEE 802.16e system; And IEEE 802.16e is last generation system of IEEE 802.16m, therefore, supports last generation system also to limit the method for designing of evolution system control channel.
Wimax 16e (Worldwide Interoperability for Microwave Access), promptly worldwide interoperability for microwave inserts.Another name of Wimax 16e is 802.16.Wimax 16e is an emerging wireless access wide band technology, can provide towards the high speed of the Internet to connect.Wherein, IEEE 802.16e is the standard that mobile broadband wireless inserts, and Wimax 16e system is meant the communication system based on IEEE 802.16e standard.Wimax 16e communication system can be divided into PUSC (Partial Usage of Sub-Channel, part is used subchannel) and two kinds of patterns of FUSC (Full Usage ofSub-Channel uses subchannel fully) according to the frequency band division mode.PUSC refers to frequency band is divided into 3 sectors, separately use, and FUSC is meant that frequency band is regardless of the sector, merges and uses.The resource of Wimax 16e system can have PUSC, FUSC, AMC multiple modes such as (Adaptive Modulation and Coding, Adaptive Modulation and Coding) by structure.Wherein the AMC mode can have various modes, comprises the 4 kinds of structures altogether that account for 1,2,3,6 symbol on the time domain.
Leading (Preamble) of a symbol and the PUSC resource that is unit with 2 symbols must be arranged for the descender of Wimax 16e system; This part PUSC resource is used for transmitting system control signaling; Remaining part can be made up of one or more of various Resource Block such as PUSC, FUSC, AMC, and promptly downlink resource must have leading and PUSC resource.For ascender, form by among PUSC and the AMC one or both, as long as a kind of among promptly up PUSC of having and the AMC just can work.
LTE (LongTermEvolution, Long Term Evolution) project is the evolution of 3G, starts from the Toronto meeting of 3GPP in 2004.LTE is a transition between 3G and the 4G technology, is the global standards of 3.9G, and it improves and strengthened the aerial access technology of 3G, adopts OFDM and the MIMO sole criterion as its wireless network evolution.The frame structure of LTE communication system is made up of the Frame of 10ms, and each frame has 10 sub-frame, can be divided into the field of two 5ms again, and each subframe is made up of the up symbol of some, descending symbol or protection gap (GP).Can be divided into 5ms and 10ms according to the up-downgoing switching cycle.
A kind of frame structure that LTE communication system 10ms switches is shown in Figure 1A; Have a special subframe S in the frame (being called the LTE frame in the literary composition) of duration 10ms, wherein descending pilot frequency time slot (DwPTS) is a part descending in the special subframe, is used to send descending symbol; Uplink pilot time slot (UpPTS) is a part up in the special subframe; Be used to send downstream signal, GP is a special subframe empty part, does not send any signal.Among the application, all descending sub frames and DwPTS have constituted the descender region in the LTE frame, and all sub-frame of uplink and UpPTS have constituted the up zone of LTE frame.
The LTE communication system with 5ms be the configuration frame structure of switching cycle shown in Figure 1B, what the frame structure that switches with 10ms was different is that every 5ms duration just has a special subframe S, has 2 special subframe S in the radio frames of duration 10ms.
OFDM symbol for the LTE system has two types, and a kind of is the regular circulation prefix, and a kind of is general cyclic prefix, and two kinds of symbols length in time is different.
Wimax 16e communication system and LTE communication system all can be divided into time division duplex (Time Division Duplex abbreviates TDD as) system and FDD (Frequency Division Duplex abbreviates FDD as) system.In tdd systems; For wireless communication system based on OFDM or OFDMA; Its Radio Resource mapping main frame structure and resource structures according to this wireless communication system; Frame structure is described the control structure of Radio Resource on time domain, and resource structures has been described the control structure of Radio Resource on frequency domain.Frame structure is divided into Radio Resource the unit of different brackets on time domain; Like frame (Superframe), frame (Frame), subframe (Subframe) and symbol (Symbol); Through being set, Different control channel (for example, broadcast channel, clean culture and Multicast Channel etc.) realizes scheduling controlling.Each frame, frame, subframe and symbol all occupy the regular hour on time domain.Under the tdd mode of Wimax 16e communication system, as shown in Figure 2, the frame length of a Wimax 16e frame is 5ms; Comprise descender region; Up zone, is called transmission/reception change gap (Transmission/Receive Transition Gap at one period free time between descender region and the up zone; Be called for short TTG); And one period free time between up zone and the descender region, be called reception/transmission change gap (Receive/TransmissionTransitionGap is called for short RTG).On the time slot of TTG and RTG, any signal is not sent in terminal and base station.
In communication system; The center frequency point close together that the frequency band of two communication systems uses possibly occur; Interval between two frequency bands is less or be almost 0 situation; Two communication systems serious interference each other in this case, two communication systems of this situation are known as adjacent communication system frequently.As shown in Figure 3; First communication system and second communication system are two adjacent communication systems frequently; First communication system can produce the Power leakage of frequency band, part energy is leaked on the frequency band of second communication system, to the communication generation larger interference of second communication system.Equally, the second communication system also can produce A and disturb.Particularly work as the second communication system and carrying out uplink communication; And first communication system is when carrying out downgoing communication at the same time; Upstream data will be sent to the base station in the terminal that belongs to the second communication system; The signal of the terminal of second communication system transmission at this moment can produce on the terminal antenna of the bigger frequency band energy leakage and first communication system that is added to; Terminal to first communication system receives downstream signal generation larger interference, that is to say that the upward signal of the first communication system down link signal and second communication system can interfere with each other the reception of the other side to signal, and vice versa.During adjacent frequency coexistence when considering that two communication system are altogether stood (base station location that refers to two communication systems is in same place), above-mentioned interference problem will be more serious.
Summary of the invention
Frame collocation method and system when the technical problem that the present invention will solve provides a kind of coexistence of communication systems, the problem of the mutual interference mutually when overcoming the LTE system with Wimax 16e system adjacent frequency coexistence.
In order to address the above problem, the frame collocation method when the invention provides a kind of coexistence of communication systems, Wimax 16e system and LTE system adjacent frequency coexistence and adopt TDD mode, the up-downgoing switching cycle of LTE frame is 10ms, this method comprises:
The frame length of the frame of Wimax 16e system is configured to 10ms, and this amended frame is designated as W ' frame; Physical resource in the W ' frame is configured to descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively;
On time domain, be comprised in the constraints in the descender region of said LTE frame according to the descender region of W ' frame, the number and the position of descending symbol in the configuration W ' frame, and the shift time of the original position of the relative LTE frame of original position of W ' frame;
On time domain, be comprised in the constraints in the up zone of said LTE frame according to the up zone of W ' frame, the number of up symbol and the duration of TTG in the configuration W ' frame.
Correspondingly; The frame configuration-system of Wimax 16e base station when the invention provides a kind of coexistence of communication systems, said Wimax 16e base station and LTE base station adjacent frequency coexistence and all adopt TDD mode, the up-downgoing switching cycle of LTE frame is 10ms; Wherein, said frame configuration-system comprises:
First inking device; Be used for the frame length of the frame of Wimax 16e system is configured to 10ms; This amended frame is designated as W ' frame, and the physical resource in the W ' frame is configured to descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively;
Second inking device; Be used for the constraints in descender region according to W ' frame is comprised in said LTE frame on time domain the descender region, the shift time of the original position of the relative LTE frame of original position of the number of descending symbol and position and W ' frame in the configuration W ' frame;
The 3rd inking device is used for the constraints in up zone according to W ' frame is comprised in said LTE frame on time domain the up zone, the number and the TTG duration of up symbol in the configuration W ' frame.
Adopt the collocation method and the system of above-mentioned physical resource; Make the up-downgoing zone of amended Wimax 16e frame on time domain, be included in respectively in the up-downgoing zone of LTE frame; The problem of the mutual interference mutually when having solved the LTE system with Wimax 16e system adjacent frequency coexistence; Improve the performance of communication system, and then realized the reliable communication of communication system.
Signaling method when the another technical problem that the present invention will solve provides a kind of coexistence of communication systems, the mutual interference mutually in the time of can overcoming the LTE system with Wimax 16e system adjacent frequency coexistence.
In order to address the above problem, the signaling method when the invention provides a kind of coexistence of communication systems, Wimax 16e system and LTE system adjacent frequency coexistence and adopt TDD mode, LTE frame up-downgoing switching cycle is 10ms, this method comprises:
With the Wimax 16e base station of LTE base station adjacent frequency coexistence in the frame length of the W ' frame of configuration; Send downstream signal in descender region earlier; Send in transmission/reception change gap (TTG) stop signal; Send upward signal in up zone then, send in reception/transmission change gap (RTG) stop signal, the frame length of said W ' frame is 10ms;
The descender region of said W ' frame is included in said LTE base station and sends in the descender region of LTE frame of downstream signal on time domain, the up zone of said W ' frame is included in said LTE base station and sends in the up zone of LTE frame of upward signal on time domain.
Adopt above-mentioned signaling method; The time that makes amended Wimax 16e frame send uplink and downlink signals was included in respectively in the time of LTE frame transmission uplink and downlink signals; The problem of the mutual interference mutually when having solved the LTE system with Wimax 16e system adjacent frequency coexistence; Improve the performance of communication system, and then realized the reliable communication of communication system.
Another technical problem that the present invention will solve provides a kind of frame structure of frame of and the Wimax16e base station configuration that LTE base station neighborhood coexists, to avoid the phase mutual interference of two base stations.
In order to address the above problem; The invention provides a kind of frame structure of frame of Wimax16e base station configuration of and LTE base station adjacent frequency coexistence; This frame is designated as W ' frame, and the frame length of W ' frame is 10ms, comprises descender region, transmission/reception change gap (TTG), up zone and the reception/transmission change gap (RTG) of duration greater than 5ms successively; Wherein, Said descender region disposes two groups of descending symbols, and the original position of first group of descending symbol and second group of descending symbol is configured in the original position and this original position 5ms place afterwards of this frame respectively, all disposes synchronizing channel on the 1st the descending symbol in these two groups of descending symbols.
Preferably,
The control channel of Wimax 16e system is configured in said first group of descending symbol the 2nd and the 3rd the descending symbol.
Preferably,
The duration of the descender region of W ' frame is smaller or equal to the duration of the descender region of the LTE frame of said LTE base station configuration, and the duration in the up zone of W ' frame is smaller or equal to the duration in the up zone of the LTE frame of said LTE base station configuration.
Preferably,
The original position of W ' frame is that the original position of first descending sub frame behind the special subframe in the said LTE frame is to the original position of this LTE frame or the duration of end position with respect to the shift time of the original position of said LTE frame.
Preferably,
The original position in the up zone of W ' frame is alignd with the original position of uplink pilot time slot (UpPTS) in the said LTE frame.
Preferably,
The minimum duration of the symbol duration of W ' frame, resource type and RTG is consistent with Wimax 16e frame.
Preferably,
When the downlink resource of 5ms is not part use subchannel (PUSC) entirely before the W ' frame; The symbolic number of first group of descending symbol of configuration is smaller or equal to 48; When the downlink resource of 5ms all divided PUSC before the W ' frame, the symbolic number of first group of descending symbol of configuration was smaller or equal to 47;
When the downlink resource of 5ms was not PUSC entirely behind the W ' frame, the symbolic number of second group of descending symbol of configuration was smaller or equal to the maximum integer that satisfies first condition; When the downlink resource of 5ms all was PUSC behind the W ' frame, the symbolic number of second group of descending symbol of configuration was smaller or equal to the maximum odd number that satisfies first condition;
When the ascending resource of W ' frame was not PUSC entirely, the number of up symbol was smaller or equal to the maximum integer that satisfies second condition in the W ' frame of configuration; When W ' frame ascending resource all was PUSC, the number of up symbol was smaller or equal to satisfying second condition and being the maximum integer of 3 multiple in the W ' frame of configuration;
Said first condition is that total duration of second group of descending symbol adds behind the 5ms duration smaller or equal to said LTE frame descender region; Said second condition is that the minimum duration sum of total duration and RTG of all up symbols of W ' frame is smaller or equal to the duration in the up zone of said LTE frame.
Adopt above-mentioned frame structure; The time that makes amended Wimax 16e frame send uplink and downlink signals was included in respectively in the time of LTE frame transmission uplink and downlink signals; The problem of the mutual interference mutually when having solved the LTE system with Wimax 16e system adjacent frequency coexistence; Improve the performance of communication system, and then realized the reliable communication of communication system.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Figure 1A and Figure 1B are respectively a kind of frame structure sketch mapes that LTE communication system 10ms switches and 5ms switches according to correlation technique;
Fig. 2 is a kind of frame structure sketch map according to the Wimax 16e system of correlation technique;
Fig. 3 is the sketch map of phase mutual interference during according to two of correlation technique adjacent coexistence of systems frequently;
Fig. 4 is the sketch map that reduces the phase mutual interference according to the embodiment of the invention one through the up-downgoing zone that changes the second communication system;
The frame structure of second communication system when Fig. 5 is first communication system that proposes according to the embodiment of the invention one and second communication coexistence of systems;
Fig. 6 is according to embodiment two examples one, LTE base station and Wimax 16e base station adjacent frequency coexistence, and the sketch map of the frame configuration of two systems when adopting the 3# uplink-downlink configuration;
Fig. 7 is according to embodiment two examples two, LTE base station and Wimax 16e base station adjacent frequency coexistence, and the sketch map of the frame configuration of two systems when adopting the 4# uplink-downlink configuration;
Fig. 8 is according to embodiment two examples three, LTE base station and Wimax 16e base station adjacent frequency coexistence, and the sketch map of the frame configuration of two systems when adopting the 5# uplink-downlink configuration;
Fig. 9 is the structured flowchart according to the frame configuration-system of the embodiment of the invention two.
Embodiment
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
In the present embodiment; First communication system and second communication system adjacent frequency coexistence and employing tdd mode; First communication system need not made any change, need be configured according to the frame configuration information of first communication system physical resource to the second communication system-frame, comprising:
The relevant parameter of the descender region of configuration second communication system-frame makes the descender region of second communication system-frame on time domain, be comprised in the first communication system down link zone;
The relevant parameter in the up zone of configuration second communication system-frame makes the up zone of second communication system-frame on time domain, be comprised in the up zone of first communication system.
Particularly, can be configured according to the frame configuration information of the second communication system base-station of adjacent frequency coexistence and clock synchronization physical resource, in case of necessity frame structure made amendment by first communication system base station to this base station.This configuration can be a static configuration, perhaps, also can be non-static configuration such as semi-static configuration or dynamic-configuration.
Above-mentioned " involved on the time domain " comprises two zones complete overlapping situation on time domain.
In order to satisfy the inclusion relation on the above-mentioned time domain; The difference of the duration in the up zone of two communication system frames should be specified duration less than first; The difference of the duration of the descender region of two communication system frames should be specified duration less than second; First specifies duration and second to specify duration more than or equal to 0, and under the prerequisite of the related request that meets first communication system and second communication system, the difference of this duration should be as far as possible little.During concrete the realization, can reach the requirement of above-mentioned duration,, reduce descending symbolic number simultaneously such as increasing up symbolic number through adjustment to the number of up symbol in the second communication system-frame and descending symbol.
In order to satisfy the inclusion relation on the above-mentioned time domain; Also need be configured the up zone of two communication system frames and the relative position of descender region, like the original position of configuration second communication system-frame with respect to the shift time of the original position of the first communication system frame etc.
After configuration was accomplished, when the second communication system base-station sent downstream signal in descender region, first communication system base station that coexists with its field can not send upward signal; When the second communication system base-station sent upward signal in up zone, first communication system base station that coexists with its field can not send downstream signal.Therefore adjacent the interference frequently will be less.As shown in Figure 4, to adopt before the present embodiment method, the up zone of first communication system down link zone and second communication system has overlapping, can send data simultaneously, has produced very big interference.Through after the modification to the second communication system; Make the descender region of second communication system-frame on time domain, be included in the descender region of the first communication system frame; The up zone of second communication system-frame is also contained on time domain in the up zone of the first communication system frame, and interference problem is reduced greatly.
Embodiment two
Present embodiment for adopting the LTE system of tdd mode, comprises the follow-up evolution system of LTE based on embodiment one, the first communication system, like LTE-Advance etc.; The second communication system is for adopting the Wimax 16e system of tdd mode.When this LTE system and Wimax 16e system adjacent frequency coexistence, existence interferes with each other.
The uplink-downlink configuration of LTE has 7 kinds, is numbered 0-6, is designated as 0# uplink-downlink configuration~6# uplink-downlink configuration.In following uplink-downlink configuration table (table 1), D represents descending sub frame, and length is 1ms, is used to send downstream signal; U represents sub-frame of uplink, and length is 1ms, is used to send upward signal; S represents special subframe, and length 1ms comprises descending pilot frequency time slot (DwPTS) again successively, and protection is (Gp) and uplink pilot time slot (UpPTS) at interval.Wherein, all sub-frame of uplink in the LTE frame and UpPTS have constituted the up zone of LTE frame, and all descending sub frames in the TE frame and DwPTS have constituted the descender region of LTE frame.
Table 1
Figure BSA00000251591100101
Can find out that from table 1 the up-downgoing switching cycle of 0#, 1#, 2#, 3# and 6# uplink-downlink configuration is 5ms, two field structures are identical, include a special subframe.The up-downgoing switching cycle of 3#, 4#, 5# and 6# uplink-downlink configuration is 10ms, in first field, comprises a special subframe, does not have special subframe in second field.
UpPTS in the special subframe, the ratio of DwPTS and GP also can be adjusted, and the special subframe frame disposes 9 kinds, is numbered 0~8, is designated as 0#~8# special subframe frame configuration.Shown in following special subframe frame allocation list (table 2); UpPTS under different special subframe frame configurations; DwPTS can be different with the shared time of GP, and table 2 has shown the time of UpPTS and DwPTS, and the time that deducts UpPTS and DwPTS with 1ms is exactly the time of GP.
Table 2
Figure BSA00000251591100102
Figure BSA00000251591100111
Present embodiment relates to is that the up-downgoing switching cycle of LTE frame is the situation of 10ms.In order to reduce the LTE base station and the mutual interference mutually of Wimax 16e base station of neck frequency coexist, keep the LTE system constant, the frame of Wimax 16e system to be made amendment, amended frame is designated as W ' frame.The physical resource of W ' frame is configured to descender region, TTG, up zone and RTG successively.This dividing region is consistent with Wimax 16e frame.The minimum durations of the symbol duration of W ' frame, resource type and RTG etc. are also consistent with Wimax 16e frame.
In addition, also need be configured, comprise according to the frame configuration information of LTE system physical resource to W ' frame:
On time domain, be comprised in the constraints in the descender region of LTE frame according to the descender region of Wimax 16e frame, the shift time of the original position of the relative LTE frame of original position of the number of descending symbol and Wimax 16e frame in the configuration Wimax 16e frame;
On time domain, be comprised in the constraints in the up zone of LTE frame according to the up zone of Wimax 16e frame, the number of up symbol and the duration of TTG in the configuration Wimax 16e frame.
Above-mentioned configuration can be a Wimax 16e base station basis and the configuration information of the LTE frame of the LTE base station of its adjacent frequency coexistence; Physical resource to the W ' frame of this base station is configured, and LTE frame configuration information comprises uplink-downlink configuration information, special subframe frame configuration information and cyclic prefix type during information.
The above-mentioned static configuration that is configured to; Perhaps; The non-static configuration of above-mentioned configuration, at this moment, after the configuration of LTE frame is upgraded in the LTE base station; The configuration information of the new LTE frame that will come into force be sent to said Wimax 16e base station (as; Can be sent to Wimax 16e core net through the LTE core net earlier, be sent to said Wimax 16e base station by Wimax 16e core net again), said configuration is carried out again according to the configuration information of this new LTE frame in said Wimax 16e base station.
W ' frame according to above-mentioned configuration obtains is as shown in Figure 5; Further, dispose two groups of continuous descending symbols, the 5ms place after the original position that the original position of first group of descending symbol and second group of descending symbol is configured in W ' frame respectively and this original position in the descender region of W ' frame; All dispose synchronizing channel on the 1st the descending symbol in these two groups of descending symbols; Be used to send synchronizing signal, and 2nd the descending sign-on configuration of the control channel of Wimax 16e system from first group of descending symbol can take 2 descending symbols; Be used for transmitting system control signaling, like the signaling of indication ascending resource position etc.Like this can compatible existing Wimax 16e terminal, it can be inserted and use smoothly.
In order to satisfy above-mentioned constraints; Preferably; Said shift time is configured to the duration of the original position of first descending sub frame behind the special subframe in the LTE frame, thereby the original position of first descending sub frame behind the original position of Wimax 16e frame and the LTE frame special subframe is alignd to the original position of this LTE frame (shift time get on the occasion of time correspondence offset manner backward) or end position (shift time get on the occasion of time correspondence offset manner forward).
The configuration in duration is the descender region of half frame length (5ms) of first group of descending symbol, the time that up symbol of Wimax 16e system and descending symbol take is 102.857us.Therefore, when not considering resource type to the restriction of symbolic number, first group of configurable maximum symbolic number M of descending symbol D1.maxCan be calculated as follows:
Figure BSA00000251591100121
Wherein, T FrameBe the frame length of W ' frame, T Frame=10ms; T SymbolBe the duration of a symbol of W ' frame, T Symbol=102.857us.At some under other the Wimax system configuration, T SymbolValue can change, corresponding maximum symbolic number and TTG, RTG also will change, following formula is the same, gives unnecessary details no longer one by one.
Can confirm that by following formula the preceding 5ms of W ' frame can put down 48 descending symbols at most, wherein first descending symbol is used to send first synchronizing signal.
According to the regulation of Wimax 16e agreement, when downlink resource was PUSC all, the descending symbolic number of Wimax 16e frame need be an odd number, when downlink resource is not PUSC entirely, as comprised FUSC and/or AMC, and descending symbolic number just need not receive the restriction of odd number number.On the other hand, when ascending resource all was PUSC, up symbolic number must be 3 multiple, when ascending resource is not PUSC entirely, as comprised AMC, and it must be 3 multiple that up symbolic number does not just need.
Present embodiment W ' frame is divided into two parts by preceding 5ms and back 5ms, and these two parts receive the restriction of the relation of above-mentioned resource type and symbolic number respectively.
Can confirm that thus when the downlink resource of 5ms was PUSC all before the W ' frame, the preceding 5ms of W ' frame was provided with 47 descending symbols, when the downlink resource of 5ms was not PUSC entirely before the W ' frame, the preceding 5ms of W ' frame can be provided with 48 descending symbols.
For the descender region that makes W ' frame is included on time domain in the descender region of LTE frame, total duration of second group of descending symbol adds behind the 5ms and should be called first condition smaller or equal to the duration of the descender region of LTE frame.When W ' frame downlink resource is not PUSC entirely; The symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum integer that satisfies this first condition; When W ' frame downlink resource all was PUSC, the symbolic number of second group of descending symbol of configuration was smaller or equal to the maximum odd number that satisfies this first condition.
When not considering resource type, satisfy the maximum symbolic number M of second group of descending symbol of first condition to the constraint of symbolic number D2.maxCan confirm by following formula:
Figure BSA00000251591100131
Wherein, T Frame, T SymbolImplication is as indicated above; T Ds.LTETotal duration for all descending sub frames in the LTE frame; T DwPTSDuration for DwPTS in the LTE frame; Expression rounds downwards.T Ds.LTEAnd T DwPTSUplink-downlink configuration, the configuration of special subframe frame of value and LTE relevant with cyclic prefix type during, can table look-up 1 obtains with table 2.
When the downlink resource of 5ms all is PUSC behind the W ' frame, the maximum symbolic number M of second group of descending symbol D2For smaller or equal to M D2.maxMaximum odd number, when the downlink resource of 5ms is not PUSC entirely behind the W ' frame, M D2=M D2.max
Preferably, present embodiment disposes the duration of TTG according to the requirement that the original position in the up zone of W ' frame is alignd with the original position of UpPTS in the LTE frame in conjunction with the duration of second group of descending symbol in the W ' frame of configuration.Can derive the computing formula of the duration of TTG according to the structure of Fig. 5 and LTE frame.
For example, this TTG duration T TTGCan be calculated as follows:
T TTG=T off.UpPTS+T off.Wimax-T frame/2-M D2·T symbol
Wherein, T Off.UpPTSArrive the duration of the original position of this LTE frame for the original position of UpPTS in the LTE frame; T Frame=10ms; T Off.WimaxBe the shift time of the original position of the relative LTE frame of the original position of W ' frame, by offset manner forward get one on the occasion of; M D2Symbolic number for second group of descending symbol in the W ' frame; T SymbolDuration for a symbol of Wimax 16e system.
If T Off.WimaxBy offset manner backward get one on the occasion of, then above-mentioned formula can be changed to:
T TTG=T off.UpPTS+T frame/2-T off.Wimax-M D2·T symbol
As can beappreciated from fig. 6, the duration of TTG is more than or equal to GP, and the alignment of both end positions.
For the up zone that makes W ' frame is included on time domain in the descender region of LTE frame, the minimum duration sum of total duration of all up symbols of W ' frame and RTG is called second condition smaller or equal to the duration in the up zone of said LTE frame.When W ' frame ascending resource is not PUSC entirely; The up symbolic number of configuration is smaller or equal to the maximum integer that satisfies this second condition; When W ' frame ascending resource all was PUSC, the up symbolic number of configuration was smaller or equal to satisfying this second condition and being the maximum integer of 3 multiple.
When not considering resource type, satisfy the maximum up symbolic number M of the W ' frame of second condition to the constraint of symbolic number U.maxCan confirm by following formula:
Figure BSA00000251591100141
Wherein, T SymbolImplication such as preceding text; T Us.LTETotal duration for all sub-frame of uplink in the LTE frame; T UpPTSDuration for UpPTS in the LTE frame; T RTGBe the minimum duration of the RTG of Wimax 16e system requirements, T RTG=80us~100us;
Figure BSA00000251591100142
Expression rounds downwards.T Us.LTEAnd T UpPTSUplink-downlink configuration, the configuration of special subframe frame of value and LTE relevant with cyclic prefix type during, can table look-up 1 obtains with table 2.
When W ' frame ascending resource is not PUSC entirely, the maximum up symbolic number M of W ' frame U=M U.max, when W ' frame ascending resource all is PUSC, the maximum up symbolic number M of W ' frame UFor smaller or equal to M U.maxAnd be the maximum integer of 3 multiple.
After the duration of uplink and downlink symbolic number and TTG was all confirmed, the duration of RTG also promptly can finally be confirmed in the W ' frame.
Please with reference to Fig. 5, according to above-mentioned configuration, the up zone of the W ' frame of present embodiment and descender region are within up zone that is included in the LTE frame on the time domain respectively and descender region.
Coexistence for Wimax 16e system and LTE system; There is multiple resource type in Wimax 16e system, and the time-domain symbol number that accounts for of different resource type is different, and said method is under the prerequisite that satisfies the constraints that the uplink and downlink zone comprises; Considered compatibility to the Wimax 16e terminal of standard; While maximizes the uplink and downlink symbolic number under the prerequisite of the constraints of resource type that satisfies Wimax 16e system and symbolic number, significantly reduces the LTE system of adjacent frequency coexistence and the phase mutual interference between the Wimax 16e system; Can improve the resource utilization of Wimax 16e system again, and compatible good.
Based on above-mentioned frame collocation method; Signaling method when present embodiment also provides a kind of coexistence of communication systems; Wimax 16e system and LTE system adjacent frequency coexistence and employing TDD mode, the up-downgoing switching cycle of LTE frame is 10ms, said signaling method comprises:
With the Wimax 16e base station of LTE base station adjacent frequency coexistence in the frame length of the W ' frame of configuration; Send downstream signal in descender region earlier; Send in transmission/reception change gap (TTG) stop signal; Send upward signal in up zone then, send in reception/transmission change gap (RTG) stop signal, the frame length of W ' frame is 10ms.
The descender region of said W ' frame is included in said LTE base station and sends in the descender region of LTE frame of downstream signal on time domain, the up zone of said W ' frame is included in said LTE base station and sends in the up zone of LTE frame of upward signal on time domain.
Preferably,
The said Wimax 16e base station and the LTE clock synchronization of adjacent frequency coexistence;
The initial moment alignment that first descending sub frame behind the special subframe in the initial moment and the said LTE frame of downstream signal is sent in W ' frame descender region in Wimax 16e base station;
The initial moment alignment that uplink pilot time slot (UpPTS) in the initial moment and the said LTE frame of upward signal is sent in the up zone of W ' frame in Wimax 16e base station.
Preferably,
In order to have good compatibility; When downstream signal is sent in the descender region of W ' frame in said Wimax 16e base station; On first descending symbol, send first synchronizing signal earlier; From second descending sign-on transmitting system control signaling, transmission second synchronizing signal the initial moment lags the descending symbol of 5ms than initial moment of first descending symbol on.
Preferably,
The spendable up symbolic number of spendable descending symbolic number of the descender region of said Wimax 16e frame and up zone is confirmed according to the frame collocation method of present embodiment and example thereof.
Present embodiment also provides a kind of frame structure of frame (being W ' frame) of Wimax 16e base station configuration of and LTE base station adjacent frequency coexistence; The frame length of this frame is 10ms; Comprise descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively; Wherein, the duration of said descender region disposes two groups of descending symbols greater than 5ms; The original position of first group of descending symbol and second group of descending symbol is configured in the original position and this original position 5ms place afterwards of this frame respectively, all disposes synchronizing channel on the 1st the descending symbol in these two groups of descending symbols.
Preferably,
The control channel of Wimax 16e system is configured in said first group of descending symbol the 2nd and the 3rd the descending symbol.
Preferably,
The minimum duration of the symbol duration of W ' frame, resource type and RTG is consistent with Wimax 16e frame.
Consider mutual interference mutually with the LTE base station; The duration of the descender region of W ' frame is smaller or equal to the duration of the descender region of the LTE frame of said LTE base station configuration, and the duration in the up zone of W ' frame is smaller or equal to the duration in the up zone of the LTE frame of said LTE base station configuration.
Preferably,
The original position of W ' frame is that the original position of first descending sub frame behind the special subframe in the said LTE frame is to the original position of this LTE frame or the duration of end position with respect to the shift time of the original position of said LTE frame.
Preferably,
The original position in the up zone of W ' frame is alignd with the original position of uplink pilot time slot (UpPTS) in the said LTE frame.
Preferably,
When the downlink resource of W ' frame was not part use subchannel (PUSC) entirely, the symbolic number of first group of descending symbol of configuration was smaller or equal to 48, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum integer that satisfies first condition; When the downlink resource of W ' frame all was PUSC, the symbolic number of first group of descending symbol of configuration was smaller or equal to 47, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum odd number that satisfies first condition;
When the ascending resource of W ' frame was not PUSC entirely, the number of up symbol was smaller or equal to the maximum integer that satisfies second condition in the W ' frame of configuration; When the ascending resource of W ' frame all was PUSC, the number of up symbol was smaller or equal to satisfying second condition and being the maximum integer of 3 multiple in the W ' frame of configuration;
Said first condition is that total duration of second group of descending symbol adds behind the 5ms duration smaller or equal to said LTE frame descender region; Said second condition is that the minimum duration sum of total duration and RTG of all up symbols in the W ' frame is smaller or equal to the duration in the up zone of said LTE frame.
Correspondingly; The frame configuration-system of Wimax 16e base station when present embodiment also provides a kind of coexistence of communication systems; Said Wimax 16e base station and LTE base station adjacent frequency coexistence and employing TDD mode, the up-downgoing switching cycle of LTE frame is 10ms, said frame configuration-system comprises:
First inking device; Be used for the frame length of the frame of Wimax 16e system is configured to 10ms; This amended frame is designated as W ' frame, and the physical resource in the W ' frame is configured to descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively;
Second inking device; Be used for the constraints in descender region according to W ' frame is comprised in said LTE frame on time domain the descender region, the shift time of the original position of the relative LTE frame of original position of the number of descending symbol and position and W ' frame in the configuration W ' frame;
The 3rd inking device is used for the constraints in up zone according to W ' frame is comprised in said LTE frame on time domain the up zone, the number and the TTG duration of up symbol in the configuration W ' frame.
Said second inking device further comprises:
Downlink resource inking device: be used for disposing two groups of continuous descending symbols in the descender region of W ' frame; The original position of first group of descending symbol and second group of descending symbol is configured in the original position and this original position 5ms place afterwards of W ' frame respectively; All dispose synchronizing channel on the 1st the descending symbol in these two groups of descending symbols, 2nd the descending sign-on configuration of control channel from first group of descending symbol.
The offset configuration device, the original position that is used for said shift time is configured to first descending sub frame behind the said LTE frame special subframe is to the original position of this LTE frame or the duration of end position;
Said the 3rd inking device further comprises:
TTG duration inking device is used for the requirement of aliging with the original position of said LTE frame uplink pilot time slot (UpPTS) according to the original position in the up zone of W ' frame, the duration of configuration TTG;
The ascending resource inking device is used for beginning continuous collocating uplink symbol from the end position of TTG.
Further,
Said first inking device also is used for being configured to the minimum duration of the symbol duration of W ' frame, resource type and RTG consistent with Wimax 16e frame;
When said downlink resource inking device is not part use subchannel (PUSC) entirely at the downlink resource of W ' frame; The symbolic number of first group of descending symbol of configuration is smaller or equal to 48, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum integer that satisfies first condition; When W ' frame downlink resource all was PUSC, the symbolic number of first group of descending symbol of configuration was smaller or equal to 47, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum odd number that satisfies first condition;
When said ascending resource inking device was not PUSC entirely at the ascending resource of W ' frame, the number of up symbol was smaller or equal to the maximum integer that satisfies second condition in the W ' frame of configuration; When W ' frame ascending resource all was PUSC, the number of up symbol was smaller or equal to satisfying second condition and being the maximum integer of 3 multiple in the W ' frame of configuration;
Wherein, said first condition is that total duration of second group of descending symbol adds behind the 5ms duration smaller or equal to said LTE frame descender region; Said second condition is that the minimum duration sum of total duration and RTG of all up symbols of W ' frame is smaller or equal to the duration in the up zone of said LTE frame.
In the present embodiment; Said second inking device and the 3rd inking device are to the said configuration of the physical resource of W ' frame; Be basis and uplink-downlink configuration information, special subframe frame configuration information and the cyclic prefix type during information of the LTE frame of the LTE base station of its adjacent frequency coexistence, the physical resource of the W ' frame of Wimax base station, place is configured;
In the present embodiment; Said frame configuration-system also comprises frame config update device; Be used for after the configuration of LTE frame is upgraded in said LTE base station; Receive the configuration information of the new LTE frame that will come into force said LTE base station, and notify said first inking device, second inking device and the 3rd inking device to be configured again according to the configuration information of this new LTE frame.
Based on the scheme of embodiment two, be presented under the different LTE frame uplink-downlink configuration configuration of uplink and downlink symbolic number in the W ' frame of Wimax16e system below.
Example one
The 3# uplink-downlink configuration is adopted in this example LTE base station, and the ascending-descending subframes sequence in the LTE frame is DSUUUDDDDD.The structure of W ' frame is as shown in Figure 6, through the back to shift time of 5ms is set, the original position of W ' frame is alignd with the original position of the 5# subframe of LTE frame.
Can confirm according to the computational methods among the embodiment two: configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE base station and cyclic prefix type during in the W ' frame of the Wimax 16e base station configuration of adjacent frequency coexistence; And the downlink resource type of W ' frame is relevant, and corresponding relation is as shown in table 3:
Table 3
Figure BSA00000251591100191
In the table, the maximum of descending symbolic number is expressed as " M in the W ' frame D1+ M D2", M D1, M D2Be respectively the maximum symbolic number of first group of descending symbol and second group of descending symbol in the W ' frame, other examples herewith repeat no more.
Configuration of the special subframe frame of the maximum of the number of up symbol and said LTE base station and cyclic prefix type during in the W ' frame of the Wimax 16e base station configuration of adjacent frequency coexistence, and the ascending resource type of W ' frame is relevant, corresponding relation is as shown in table 4:
Table 4
The up symbolic number that table 4 some places occur is 27 or 30, and its reason is that the value of the minimum duration of RTG is different, and both get wherein a kind of getting final product, and other embodiment herewith repeat no more.
X among Fig. 6 represents the descending symbolic number in the 5ms behind the W ' frame, and in this example, this value possibly be 11-18, and the y among the figure represents the up symbolic number in the W ' frame, and this value possibly be 27,29 or 30.The meaning of x and y afterwards in the example also with this example class seemingly, repeat no more later on.
Example two
The 4# uplink-downlink configuration is adopted in this example LTE base station; The ascending-descending subframes sequence of LTE frame is DSUUDDDDDD; The structure of W ' frame is as shown in Figure 7, through the back to shift time of 4ms is set, the original position of W ' frame is alignd with the original position of the 4# subframe of LTE system.
Can confirm according to the computational methods among the embodiment two: configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE base station and cyclic prefix type during in the W ' frame of the Wimax 16e base station configuration of adjacent frequency coexistence; And the downlink resource type of W ' frame is relevant, and corresponding relation is as shown in table 5:
Table 5
Figure BSA00000251591100202
0 47+21 47+21 48+21 48+12
1 47+25 47+25 48+25 48+16
2 47+25 47+25 48+26 48+17
3 47+27 47+27 48+27 48+17
4 47+27 47+21 48+27 48+12
5 47+21 47+25 48+21 48+16
6 47+25 47+25 48+25 48+17
7 47+25 - 48+26 -
8 47+27 - 48+27 -
Configuration of the special subframe frame of the maximum of the number of up symbol and said LTE base station and cyclic prefix type during in the W ' frame of the Wimax 16e base station configuration of adjacent frequency coexistence, and the ascending resource type of W ' frame is relevant, corresponding relation is as shown in table 6:
Table 6
Figure BSA00000251591100211
Example three
The 5# uplink-downlink configuration is adopted in this example LTE base station; Ascending-descending subframes sequence in the LTE frame is DSUDDDDDDD; The structure of W ' frame is as shown in Figure 7, through the back to shift time of 3ms is set, the original position of W ' frame is alignd with the original position of the 3# subframe of LTE system.
Can confirm according to the computational methods among the embodiment two: configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE base station and cyclic prefix type during in the W ' frame of the Wimax 16e base station configuration of adjacent frequency coexistence; And the downlink resource type of W ' frame is relevant, and corresponding relation is as shown in table 7:
Table 7
Figure BSA00000251591100221
The number of up symbol is relevant with the ascending resource type of W ' frame in the W ' frame of configuration, and when the ascending resource of W ' frame all was PUSC, the maximum of the number of up symbol was 9 in the W ' frame; When the ascending resource of W ' frame was not PUSC entirely, the maximum of up symbolic number was 10 in the W ' frame.As shown in table 8 below:
Table 8
Figure BSA00000251591100222
From above description, can find out; The present invention has realized following technique effect: above embodiment considers because adjacent bandwidth leaks the problem that causes adjacent system frequently to interfere with each other; Adopt the method that increases or reduce up zone of some communication systems and/or descender region; Solve the problem that interferes with each other, ensured that terminal and base station can normal communications, guaranteed the spectrum efficiency of wireless communication system.Simultaneously, in the time of can changing in the uplink-downlink configuration of a system, the configuration of another system can also be adjusted accordingly, two systems is remained disturb less state.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here 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.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (17)

1. the frame collocation method a during coexistence of communication systems, Wimax 16e system and LTE system adjacent frequency coexistence and adopt TDD mode, the up-downgoing switching cycle of LTE frame is 10ms, this method comprises:
The frame length of the frame of Wimax 16e system is configured to 10ms, and this amended frame is designated as W ' frame; Physical resource in the W ' frame is configured to descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively;
On time domain, be comprised in the constraints in the descender region of said LTE frame according to the descender region of W ' frame, the number and the position of descending symbol in the configuration W ' frame, and the shift time of the original position of the relative LTE frame of original position of W ' frame;
On time domain, be comprised in the constraints in the up zone of said LTE frame according to the up zone of W ' frame, the number of up symbol and the duration of TTG in the configuration W ' frame.
2. frame collocation method as claimed in claim 1 is characterized in that:
The descender region of said W ' frame disposes two groups of continuous descending symbols; The original position of first group of descending symbol and second group of descending symbol is configured in the original position and this original position 5ms place afterwards of W ' frame respectively; All dispose synchronizing channel on the 1st the descending symbol in these two groups of descending symbols, 2nd the descending sign-on configuration of the control channel of Wimax 16e system from first group of descending symbol.
3. according to claim 1 or claim 2 frame collocation method is characterized in that:
The original position that said shift time is configured to first descending sub frame behind the special subframe in the said LTE frame is to the original position of this LTE frame or the duration of end position;
According to the requirement that the original position in the up zone of W ' frame is alignd with the original position of uplink pilot time slot (UpPTS) in the said LTE frame, the duration of configuration TTG, up symbol begins continuous configuration from the end position of TTG.
4. frame collocation method as claimed in claim 3 is characterized in that:
The configuration of the minimum duration of the symbol duration of W ' frame, resource type and RTG is consistent with Wimax 16e frame;
When the downlink resource of 5ms is not part use subchannel (PUSC) entirely before the W ' frame; The symbolic number of first group of descending symbol of configuration is smaller or equal to 48; When the downlink resource of 5ms all divided PUSC before the W ' frame, the symbolic number of first group of descending symbol of configuration was smaller or equal to 47;
When the downlink resource of 5ms was not PUSC entirely behind the W ' frame, the symbolic number of second group of descending symbol of configuration was smaller or equal to the maximum integer that satisfies first condition; When the downlink resource of 5ms all was PUSC behind the W ' frame, the symbolic number of second group of descending symbol of configuration was smaller or equal to the maximum odd number that satisfies first condition;
When the ascending resource of W ' frame was not PUSC entirely, the number of up symbol was smaller or equal to the maximum integer that satisfies second condition in the W ' frame of configuration; When W ' frame ascending resource all was PUSC, the number of up symbol was smaller or equal to satisfying second condition and being the maximum integer of 3 multiple in the W ' frame of configuration;
Said first condition is that total duration of second group of descending symbol adds behind the 5ms duration smaller or equal to said LTE frame descender region; Said second condition is that the minimum duration sum of total duration and RTG of all up symbols of W ' frame is smaller or equal to the duration in the up zone of said LTE frame.
5. frame collocation method as claimed in claim 3 is characterized in that, when said LTE frame adopts the 3# uplink-downlink configuration:
Configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE frame and cyclic prefix type during in the W ' frame of configuration, and the downlink resource type of Wimax 16e system is relevant, corresponding relation is following:
In the table, the maximum symbolic number that the maximum of descending symbolic number is expressed as first group of descending symbol in the W ' frame adds the maximum symbolic number of second group of descending symbol;
Configuration of the special subframe frame of the maximum of the number of up symbol and said LTE frame and cyclic prefix type during in the W ' frame of configuration, and the ascending resource type of W ' frame is relevant, corresponding relation is following:
Figure FSA00000251591000031
6. frame collocation method as claimed in claim 3 is characterized in that, when said LTE frame adopts the 4# uplink-downlink configuration:
Configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE frame and cyclic prefix type during in the W ' frame of configuration, and the downlink resource type of W ' frame is relevant, corresponding relation is following:
Figure FSA00000251591000032
In the table, the maximum symbolic number that the maximum of descending symbolic number is expressed as first group of descending symbol in the W ' frame adds the maximum symbolic number of second group of descending symbol;
Configuration of the special subframe frame of the maximum of the number of up symbol and said LTE frame and cyclic prefix type during in the W ' frame of configuration, and the ascending resource type of W ' frame is relevant, corresponding relation is following:
Figure FSA00000251591000041
7. frame collocation method as claimed in claim 3 is characterized in that, when said LTE frame adopts the 5# uplink-downlink configuration:
Configuration of the special subframe frame of the maximum of the number of descending symbol and said LTE frame and cyclic prefix type during in the W ' frame of configuration, and the downlink resource type of W ' frame is relevant, corresponding relation is following:
Figure FSA00000251591000042
In the table, the maximum symbolic number that the maximum of descending symbolic number is expressed as first group of descending symbol in the W ' frame adds the maximum symbolic number of second group of descending symbol;
When the downlink resource of W ' frame all was PUSC, the number of up symbol was smaller or equal to 9 in the W ' frame of configuration; When the downlink resource of W ' frame was not PUSC entirely, the number of up symbol was smaller or equal to 10 in the W ' frame of configuration.
8. frame collocation method as claimed in claim 1 is characterized in that:
Said configuration to the physical resource of W ' frame; Be by uplink-downlink configuration information, special subframe frame configuration information and the cyclic prefix type during information of Wimax 16e base station basis, the physical resource of the W ' frame of this base station is configured with the LTE frame of the LTE base station of its adjacent frequency coexistence;
The said static configuration that is configured to; Perhaps; The non-static configuration of said configuration; After the configuration of LTE frame was upgraded in the LTE base station, the configuration information of the new LTE frame that will come into force was sent to the base station with said Wimax 16e, and said configuration is carried out again according to the configuration information of this new LTE frame in said Wimax 16e base station.
9. the signaling method a during coexistence of communication systems, Wimax 16e system and LTE system adjacent frequency coexistence and adopt TDD mode, LTE frame up-downgoing switching cycle is 10ms, this method comprises:
With the Wimax 16e base station of LTE base station adjacent frequency coexistence in the frame length of the W ' frame of configuration; Send downstream signal in descender region earlier; Send in transmission/reception change gap (TTG) stop signal; Send upward signal in up zone then, send in reception/transmission change gap (RTG) stop signal, the frame length of said W ' frame is 10ms;
The descender region of said W ' frame is included in said LTE base station and sends in the descender region of LTE frame of downstream signal on time domain, the up zone of said W ' frame is included in said LTE base station and sends in the up zone of LTE frame of upward signal on time domain.
10. signaling method as claimed in claim 9 is characterized in that:
When downstream signal is sent in the descender region of W ' frame in said Wimax 16e base station; On first descending symbol, send first synchronizing signal earlier; From second descending sign-on transmitting system control signaling, transmission second synchronizing signal the initial moment lags the descending symbol of 5ms than initial moment of first descending symbol on.
11., it is characterized in that like claim 9 or 10 described signaling methods:
The said Wimax 16e base station and the LTE base station clock of adjacent frequency coexistence are synchronous;
The initial moment alignment that first descending sub frame behind the special subframe in the initial moment and the said LTE frame of downstream signal is sent in the descender region of W ' frame in said Wimax 16e base station;
The initial moment alignment that uplink pilot time slot (UpPTS) in the initial moment and the said LTE frame of upward signal is sent in the up zone of W ' frame in said Wimax 16e base station.
12. signaling method as claimed in claim 11 is characterized in that:
When the 3# uplink-downlink configuration was adopted in said LTE base station, the maximum number and the maximum number of the up symbol that can be used for sending upward signal that can be used for sending the descending symbol of downstream signal in the W ' frame obtained according to the form in the frame collocation method as claimed in claim 5;
When the 4# uplink-downlink configuration was adopted in said LTE base station, the maximum number and the maximum number of the up symbol that can be used for sending upward signal that can be used for sending the descending symbol of downstream signal in the W ' frame obtained according to the form in the frame collocation method as claimed in claim 6;
When the 5# uplink-downlink configuration was adopted in said LTE base station, the maximum number and the maximum number of the up symbol that can be used for sending upward signal that can be used for sending the descending symbol of downstream signal in the W ' frame obtained according to the form in the frame collocation method as claimed in claim 7.
13. the frame configuration-system of Wimax 16e base station during a coexistence of communication systems; Said Wimax 16e base station and LTE base station adjacent frequency coexistence and all adopt TDD mode; The up-downgoing switching cycle of LTE frame is 10ms, it is characterized in that, said frame configuration-system comprises:
First inking device; Be used for the frame length of the frame of Wimax 16e system is configured to 10ms; This amended frame is designated as W ' frame, and the physical resource in the W ' frame is configured to descender region, transmission/reception change gap (TTG), up zone and reception/transmission change gap (RTG) successively;
Second inking device; Be used for the constraints in descender region according to W ' frame is comprised in said LTE frame on time domain the descender region, the shift time of the original position of the relative LTE frame of original position of the number of descending symbol and position and W ' frame in the configuration W ' frame;
The 3rd inking device is used for the constraints in up zone according to W ' frame is comprised in said LTE frame on time domain the up zone, the number and the TTG duration of up symbol in the configuration W ' frame.
14. frame configuration-system as claimed in claim 13 is characterized in that, said second inking device comprises:
Downlink resource inking device: be used for disposing two groups of continuous descending symbols in the descender region of W ' frame; The original position of first group of descending symbol and second group of descending symbol is configured in the original position and this original position 5ms place afterwards of W ' frame respectively; All dispose synchronizing channel on the 1st the descending symbol in these two groups of descending symbols, 2nd the descending sign-on configuration of control channel from first group of descending symbol.
The offset configuration device, the original position that is used for said shift time is configured to first descending sub frame behind the said LTE frame special subframe is to the original position of this LTE frame or the duration of end position.
15., it is characterized in that said the 3rd inking device comprises like claim 13 or 14 described frame configuration-systems:
TTG duration inking device is used for the requirement of aliging with the original position of said LTE frame uplink pilot time slot (UpPTS) according to the original position in the up zone of W ' frame, the duration of configuration TTG;
The ascending resource inking device is used for beginning continuous collocating uplink symbol from the end position of TTG.
16. frame configuration-system as claimed in claim 14 is characterized in that:
Said first inking device also is used for being configured to the minimum duration of the symbol duration of W ' frame, resource type and RTG consistent with Wimax 16e frame;
When said downlink resource inking device is not part use subchannel (PUSC) entirely at the downlink resource of W ' frame; The symbolic number of first group of descending symbol of configuration is smaller or equal to 48, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum integer that satisfies first condition; When W ' frame downlink resource all was PUSC, the symbolic number of first group of descending symbol of configuration was smaller or equal to 47, and the symbolic number of second group of descending symbol of configuration is smaller or equal to the maximum odd number that satisfies first condition;
When said ascending resource inking device was not PUSC entirely at the ascending resource of W ' frame, the number of up symbol was smaller or equal to the maximum integer that satisfies second condition in the W ' frame of configuration; When W ' frame ascending resource all was PUSC, the number of up symbol was smaller or equal to satisfying second condition and being the maximum integer of 3 multiple in the W ' frame of configuration;
Wherein, said first condition is that total duration of second group of descending symbol adds behind the 5ms duration smaller or equal to said LTE frame descender region; Said second condition is that the minimum duration sum of total duration and RTG of all up symbols of W ' frame is smaller or equal to the duration in the up zone of said LTE frame.
17. frame configuration-system as claimed in claim 13 is characterized in that:
Said second inking device and the 3rd inking device are to the said configuration of the physical resource of W ' frame; Be basis and uplink-downlink configuration information, special subframe frame configuration information and the cyclic prefix type during information of the LTE frame of the LTE base station of its adjacent frequency coexistence, the physical resource of the W ' frame of Wimax base station, place is configured;
Said frame configuration-system also comprises frame config update device; Be used for after the configuration of LTE frame is upgraded in said LTE base station; Receive the configuration information of the new LTE frame that will come into force said LTE base station, and notify said first inking device, second inking device and the 3rd inking device to be configured again according to the configuration information of this new LTE frame.
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