CN102316591B - Physical resource configuration method for communication system and communication system - Google Patents
Physical resource configuration method for communication system and communication system Download PDFInfo
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Abstract
The invention discloses a physical resource allocation method for a communication system and the communication system. The method comprises the following steps of: configuring the second uplink time of a second communication system in a way that the second uplink time is included in the first uplink time of a first communication system, and configuring the second downlink time of the second communication system in a way that the second downlink time is included in the first downlink time of the first communication system, wherein the first and second communication systems are adjacent channel communication systems. The uplink and downlink time of one of the adjacent channel communication systems is configured in a way that the uplink and downlink time of the system includes the uplink and downlink time of the other system, so the problem of mutual interference between the adjacent channel communication systems is solved, the performance of the communication system is improved, and the reliable communication of the communication system is further finished.
Description
Technical field
The present invention relates to the communications field, the collocation method of physical resource and communication system in a kind of communication system.
Background technology
In wireless communication system, base station points to the equipment that terminal provides the functions such as initial access, business transmission and resource management, and usually, base station realizes above-mentioned functions by control channel and administrative messag.Base station is communicated with terminal by Uplink/Downlink, and down link refers to that the wireless link of terminal is arrived in base station, and up link refers to the wireless link of terminal to base station.
OFDM (Orthogonal Frequency Division Multiplexing, referred to as OFDM) technology is the high speed transmission technology under a kind of wireless environment, and it improves the performance of anti-multipath fading by the pulse duration of escape character.The principle that realizes of OFDM technology is: parallel data high-speed serial data being transformed into multichannel relative low speeds, and is transmitted to mutually orthogonal subcarrier by this multidiameter delay Data Modulation.Orthogonal frequency-time multiple access (Orthogonal Frequency Division Multiple Access, referred to as OFDMA) technology is on the basis of OFDM technology, by the subcarrier making CU different, realizes multiple access access.In the wireless communication system of OFDMA technology, complete the mapping of Radio Resource and the distribution of Radio Resource by base station.Such as, determine that base station is to the system configuration and resource allocation information the etc. during uplink of the system configuration during downlink transfer of terminal and resource allocation information and terminal to base station by base station, base station is configured and resource allocation information to terminal transmitting system by control channel, terminal receives these information on the control channel determined, and then receive and send data, communicate with base station.
In addition, in order to adapt to various channel condition, a kind of wireless communication system has kinds of frame, under the condition of kinds of frame, how to ensure the consistency of the design of control channel, comprise the resource location for transmitting control channel, whether resource quantity is consistent; In the same generation communication standard, plurality of communication systems coexists, and how to design respective control channel also extremely important to ensure that each communication system can coexist; And, a communication system is in evolution, usual needs continue to support its system in evolution system in last generation, such as, IEEE 802.16m system is the evolution system of IEEE 802.16e system, and IEEE 802.16e is last generation system of IEEE802.16m, therefore, support that last generation system also limit the method for designing of evolution system control channel.
WiMax (Worldwide Interoperability for Microwave Access), i.e. worldwide interoperability for microwave access.Another name of WiMAX is 802.16.WiMAX is an emerging wireless access wide band technology, and the high speed of Internet can be provided to connect.Wherein, IEEE 802.16e is the standard of mobile broadband wireless access, and Wimax 16e system refers to the communication system based on IEEE 802.16e standard.Wimax communication system can be divided into PUSC (Partial Usage of Sub-Channel according to frequency band division mode, part uses subchannel) and FUSC (Full Usage of Sub-Channel, uses subchannel completely) two kinds of patterns.PUSC refers to and frequency band is divided into 3 sectors, separately use, and FUSC refers to that frequency band is regardless of sector, merges and uses.The resource of Wimax 16e system can have the various ways such as PUSC, FUSC, AMC (Adaptive Modulation and Coding, Adaptive Modulation and Coding) by structure.
LTE (Long Term Evolution, 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 4G technology, is the global standards of 3.9G, and it improves and enhances the aerial access technology of 3G, adopts OFDM and MIMO as the sole criterion of its wireless network evolution.The frame structure of LTE communication system is made up of the Frame of 10ms, and each frame has 10 subframes, can be divided into again the field of two 5ms, and each subframe is made up of the uplink symbol of some, downlink symbol or time space GP.5ms and 10ms can be divided into according to up-downgoing switching cycle, the one configuration frame structure that LTE communication system 5ms switches as shown in Figure 1, wherein DwPTS is part descending in special subframe, for sending downlink symbol, UpPTS is part up in special subframe, for sending downlink symbol, GP is special subframe empty part, does not send any signal.
Wimax communication system and LTE communication system all can be divided into time division duplex (TimeDivision Duplex, referred to as TDD) system and Frequency Division Duplexing (FDD) (Frequency DivisionDuplex, referred to as FDD) system.In tdd systems, for the wireless communication system based on OFDM or OFDMA, its Radio Resource maps frame structure and the resource structures of this wireless communication system of Main Basis, frame structure describes the control structure of Radio Resource in time domain, and resource structures describes the control structure of Radio Resource on frequency domain.Radio Resource is divided into the unit of different brackets by frame structure in time domain, as superframe (Superframe), frame (Frame), subframe (Subframe) and symbol (Symbol), scheduling controlling is realized by arranging different control channels (such as, broadcast channel, clean culture and Multicast Channel etc.).Each superframe, frame, subframe and symbol all occupy the regular hour in time domain.Under the tdd mode of Wimax communication system, downgoing time is switched to upstream time has one period of free time to be called sending/receiving change gap (Transmission/Receive Transition Gap, be called for short TTG), upstream time is switched to downgoing time has one period of free time to be called reception/transmission change gap (Receive/Transmission Transition Gap is called for short TTG).On the time slot of TTG and RTG, terminal and base station do not send any signal.
In communication system, the center frequency point close together of the frequency band that two communication systems use may be there is, interval between two frequency bands less or be almost 0 situation, two communication systems may serious interference each other in this case, and two communication systems of this situation are referred to as adjacent frequency communication system.As shown in Figure 2, system A and system B is two adjacent frequency communication systems, and system A can produce the Power leakage of frequency band, part energy is leaked on the frequency band of system B, produces larger interference to the communication of system B.Equally, system B also can produce interference to A.Particularly when system B is carrying out uplink communication, and system A is when carrying out downgoing communication at the same time, the terminal belonging to system B will to Base Transmitter upstream data, at this moment the signal of the terminal transmission of system B can produce larger frequency band energy and leaks and be added on the terminal antenna of system A, downstream signal is received to the terminal of system A and produces larger interference, that is the up Received signal strength interfering with each other the other side of the descending and B of A, vice versa.During adjacent frequency coexistence when considering two communication system co-sited (referring to the base station location of two communication systems in same place), above-mentioned interference problem will be more serious.
Summary of the invention
Main purpose of the present invention is the collocation method and the communication system that provide physical resource in a kind of communication system, at least one of to solve the above problems.
According to an aspect of the present invention, provide the collocation method of physical resource in a kind of communication system, comprise: the second upstream time of configuration second communication system is comprised in the first upstream time of the first communication system, second downgoing time of configuration second communication system is comprised in the first downgoing time of the first communication system, wherein, the first communication system and second communication system are adjacent frequency communication system.
According to a further aspect in the invention, provide a kind of communication system, communication system is second communication system, is adjacent frequency communication system with the first communication system; Second communication system comprises: time-length configuration module, and the second upstream time for configuring second communication system is comprised in the first upstream time of the first communication system; Second downgoing time of configuration second communication system is comprised in the first downgoing time of the first communication system.
Pass through the present invention, adopt the up-downgoing time of a system in configuration adjacent frequency communication system, the up-downgoing time of this system is made to be included in the up-downgoing time of another system, solve the problem that adjacent frequency communication system is disturbed mutually, improve the performance of communication system, and then complete the reliable communication of communication system.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the one configuration frame structure schematic diagram switched according to the LTE communication system 5ms of correlation technique;
The schematic diagram that Fig. 2 disturbs when being and coexisting according to two near frequency system of correlation technique mutually;
Fig. 3 is the collocation method flow chart of physical resource in the communication system according to the embodiment of the present invention 1;
Fig. 4 reduces the mutual schematic diagram disturbed according to the up-downgoing time by change system B of the embodiment of the present invention 1;
Fig. 5 is when being 0 according to the LTE uplink-downlink configuration of example 1 of the present invention, the schematic diagram of LTE communication system and Wimax 16e communication system adjacent frequency coexistence;
Fig. 6 is when being 1 according to the LTE uplink-downlink configuration of example 2 of the present invention, the schematic diagram of LTE communication system and Wimax 16e communication system adjacent frequency coexistence;
Fig. 7 is when being 2 according to the LTE uplink-downlink configuration of example 3 of the present invention, the schematic diagram of LTE communication system and Wimax 16e communication system adjacent frequency coexistence; And
Fig. 8 is the structured flowchart of the communication system according to the embodiment of the present invention 4.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
When two communication systems have enough frequency domain interval on frequency band, the energy of leakage, by fewer, can not make a big impact to another communication system; On the contrary, when the frequency domain spacing of two communication systems is little, mutual interference will be caused due to energy leakage; Less for frequency domain spacing two communication systems are called adjacent frequency communication system by following examples of the present invention, and are described for adjacent frequency communication system.
Embodiment 1
Fig. 3 shows the collocation method flow chart of physical resource in a kind of communication system according to the embodiment of the present invention, and wherein, the first communication system and second communication system are adjacent frequency communication system, and the method comprises the following steps:
Step S302, the second upstream time of configuration second communication system is comprised in the first upstream time of the first communication system;
Step S304, the second downgoing time of configuration second communication system is comprised in the first downgoing time of the first communication system.
Preferably, the length difference of the first upstream time and the second upstream time is less than the first designated length, the length difference of the first downgoing time and the second downgoing time is less than the second designated length, wherein, first designated length and the second designated length can set according to actual needs, under the prerequisite of related request meeting the first communication system and second communication system, ensure that length difference is as far as possible little.
When specific implementation, by increasing or reduce the method for uplink symbol (i.e. upstream time) or downlink symbol (i.e. downgoing time) on the uplink and downlink frame structure of second communication system (such as communication system B), the up-downgoing time unifying of the up-downgoing time of communication system B and the first communication system (such as communication system A) can be made or is included in the up-downgoing time of communication system A.
In above process, the up-downgoing symbolic number of the first communication system, frame structure do not need to make any change.And second communication system only needs to change up-downgoing symbolic number, such as increase uplink symbol number, reduce downlink symbol number simultaneously, the up-downgoing time of two systems in time can be alignd, and the up-downgoing time situation about being completely contained in the up-downgoing time of the first communication system of second communication system is called up-downgoing aligned condition by the embodiment of the present invention.As shown in Figure 4, system A is descending sends data with system B is up on the identical time, creates very large interference.After to the amendment of system B, make the downgoing time of system B be included in the downgoing time of system A, the upstream time of system B is also contained in the upstream time of system A, and interference problem is greatly reduced.
After above-mentioned first communication system and second communication system send data according to respective configuration, the interference of its adjacent frequency will be less.
The present embodiment is when the first communication system and second communication system are adjacent frequency communication system, be included in the duration up and down of another communication system by the duration up and down configuring a communication system, solve the mutual interference problem between two adjacent frequency communication systems (especially the adjacent frequency communication system of co-sited) up-downgoing symbol, improve the performance of communication system, and then complete the reliable communication of communication system.
Embodiment 2
When LTE communication system (corresponding above-mentioned communication system A) and Wimax 16e communication system (corresponding above-mentioned communication system B) adjacent frequency coexistence, exist and interfere with each other situation, in order to reduce the mutual interference between two systems, can when LTE system be constant, Wimax 16e system is modified, makes it meet the condition of up-downgoing alignment.
The ascending-descending subframes structure of LTE has 7 kinds, is represented respectively by numbering 0-6, as uplink-downlink configuration table, namely shown in table 1, D represents descending sub frame, length 1ms, for sending downlink symbol, U represents sub-frame of uplink, length 1ms, for sending uplink symbol, S represents special subframe, length 1ms, the time (UpPTS) of middle existing transmission uplink symbol, also has the time (DwPTS) sending downlink symbol and the blank time Gp not sending any symbol.
UpPTS in S subframe, the ratio of DwPTS and GP also can adjust, as special subframe frame allocation list, namely shown in table 2, UpPTS in different situations, time shared by DwPTS and GP can be different, and table 2 only indicates the time of UpPTS and DwPTS, and due to time of S subframe lengths to be time that 1ms 1ms deducts UpPTS and DwPTS be exactly GP.
Table 1
Table 2
The amended frame structure of Wimax 16e communication system is introduced below, to reach two communication system up-downgoing alignment according to different LTE uplink-downlink configuration and the configuration of special subframe frame.
Example 1
When uplink-downlink configuration is the 0th configuration in table 1, in corresponding table 1, up-downgoing ratio is DSUUUDSUUU.
In order to reach above-mentioned up-downgoing aligned condition, when LTE system uses different special subframe S types, the corresponding uplink symbol of Wimax 16e system and the condition shown in downlink symbol number demand fulfillment table 3.And the 0th subframe of the corresponding LTE system of the original position of Wimax frame, as shown in Figure 5.
Table 3
The defining method of table 3 is: the up-downgoing basal latency first determining Wimax system according to the uplink-downlink configuration of LTE, uplink-downlink configuration as LTE is 0, the time 3ms of the descending basal latency of Wimax to be the up basal latency of the time 1ms of a LTE descending sub frame, Wimax be three LTE sub-frame of uplink.And then the up-downgoing additional period of Wimax system is determined according to the special subframe frame configuration of LTE, additional period is determined by table 2, DwPTS and UpPTS in table 2 is downgoing time and upstream time in the special subframe of LTE respectively, the descending additional period of Wimax system that this time difference is corresponding and up additional period.In order to compatible with LTE system, the maximum upstream time of Wimax equals up basal latency and adds up additional period, the maximum downstream time of Wimax equals descending basal latency and adds descending additional period, and the actual uplink time used of Wimax system and downgoing time all can not exceed maximum upstream time and maximum downstream time.Simultaneously, because Wimax communication system also has corresponding TTG and the RTG time to need to reserve, with the smooth of up-downgoing switching of going bail for, wherein TTG can overlap with the GP time in LTE, do not need extra consideration, RTG then at least needs the time of 80-100ms, this part time needs are deducted from the maximum upstream time of Wimax, the RTG time of that is maximum upstream time of Wimax=up basal latency+up additional period-Wimax, Wimax maximum downstream time=descending basal latency+descending additional period.
The time taken due to Wimax system symbol (no matter up or descending) is again 102.857ms, can calculate like this and can put down at most how many uplink symbol and downlink symbol within certain maximum up and maximum downstream time.The present embodiment adopts PUSC pattern to be described for Wimax communication system, according to the relevant regulations of PUSC pattern, the downlink symbol number of Wimax needs to be odd number, uplink symbol number is the multiple of 3, the parameter in table 3 can be obtained like this, indicate when LTE uplink-downlink configuration is 0, Wimax system up-downgoing symbolic number under various special subframe frame configuring condition, Wimax communication system only has and meets this condition under PUSC pattern, LTE communication system of could getting along well produces larger interference, the resource of simultaneously wasting is relatively little, namely so-called adjacent frequency coexistence condition is reached.Wherein, in form 27 and 30 refers to uplink symbol number in this case not only can get 27 but also can get 30, reason is when the RTG of Wimax communication system gets different value (generally getting 40ms to 140ms), Wimax up maximum time can be made different, and the number of symbols making it possible to hold is different.
For the Wimax communication system adopting FUSC pattern, its account form and PUSC Pattern Class are seemingly, but demand fulfillment downlink symbol number must not be odd number, uplink symbol number must be the condition of the multiple of 3, up-downgoing symbolic number can configure more neatly, make the utilance of resource in time domain higher, illustrate no longer one by one here.Wimax16e system can have PUSC simultaneously in some cases, polytype resource such as FUSC, AMC, such up-downgoing symbol also not above-mentioned condition of demand fulfillment, can flexible configuration, also illustrates no longer one by one here.
As a same reason, when the uplink-downlink configuration of LTE system is 1,2, also use said method to calculate the up-downgoing number of symbols of Wimax communication system under PUSC pattern, as table 4, table 5 in example 2,3, method is the same, repeats no longer one by one below.
LTE and Wimax 16e alignment in time as shown in Figure 5, Wimax 16e system is represented with 16e in Fig. 5,0th subframe (i.e. the descending starting position of LTE) of the corresponding LTE system of original position of Wimax 16e system, 5th subframe of the corresponding LTE system of original position of the next frame (i.e. second frame in figure) of Wimax 16e system, thus reach up-downgoing aligned condition above.Wherein, the x in Fig. 5 represents Wimax 16e downlink symbol number, the value in corresponding table 3 may be 11,15 or 17, figure in y represent Wimax 16e uplink symbol number, the value in corresponding table 3 may be 27 or 30.The meaning of x and y is also similar with the present embodiment in embodiment afterwards, repeats no more later.It should be noted that the symbolic number in this case that is meant to that some place in table 3 fills in 27 or 30 can be 27 or 30, system can select one of them flexibly according to the needs of network configuration.
Example 2
When uplink-downlink configuration is 1, in corresponding table 1.1, up-downgoing ratio is DSUUDDSUUD.In order to reach above-mentioned up-downgoing aligned condition, when LTE system uses different special subframe S types, the corresponding uplink symbol of Wimax 16e system and the condition shown in downlink symbol number demand fulfillment table 4.And the 9th subframe of the corresponding LTE system of the original position of Wimax frame, as shown in Figure 6.
Table 4
LTE and Wimax 16e alignment in time as shown in Figure 6, Wimax 16e system is represented with 16e in figure, 9th subframe (i.e. the descending starting position of LTE) of a upper frame of the corresponding LTE system of original position of Wimax 16e system, 4th subframe of the corresponding LTE system of original position of the next frame (i.e. second frame in figure) of Wimax 16e system, thus reach foregoing up-downgoing aligned condition.
Example 3
When uplink-downlink configuration is 2, in corresponding table 1.1, up-downgoing ratio is DSUDDDSUDD.
In order to reach above-mentioned up-downgoing aligned condition, when LTE system uses different special subframe S types, the corresponding uplink symbol of Wimax 16e system and the condition shown in downlink symbol number demand fulfillment table 5.And the 8th subframe of the corresponding LTE system of the original position of Wimax frame, as shown in Figure 7.
Table 5
LTE and Wimax 16e alignment in time as shown in Figure 7, Wimax 16e system is represented with 16e in Fig. 7,8th subframe (i.e. the descending starting position of LTE) of a upper frame of the corresponding LTE system of original position of Wimax 16e system, 3rd subframe of the corresponding LTE system of original position of the next frame (i.e. second frame in figure) of Wimax 16e system, thus reach foregoing up-downgoing aligned condition.
The present embodiment is by arranging the up-downgoing symbol numbers of Wimax 16e system according to the uplink-downlink configuration of LTE system and the configuration of special subframe frame, make the LTE system of adjacent frequency coexistence and Wimax 16e system can arrive up-downgoing time unifying recited above, thus the interference between reduction system.
In Wimax 16e in the table 3-5 of above example 1-3, the value of up-downgoing symbolic number is optimal value, when actual realization, can meet simultaneously table 3-5 in the up-downgoing symbolic number in a line, meet one also passable.Such as, for table 5, when special subframe frame is configured to the 0th configuration, in Wimax 16e, the value of uplink symbol number can be 31, and the value of downlink symbol number need not be 9, also can be less than 9.
Embodiment 3
When communication system A and communication system B adjacent frequency are with when depositing, if the uplink-downlink configuration of system A or special subframe configuration change, will be had influence on it and align with the up-downgoing of B system, thus make very little interference originally become again very large.In order to address this problem, when A system changes its uplink-downlink configuration or the configuration of special subframe frame, the base station to the system B coexisted with it is needed to send ConfigChange (configuration change) signaling, uplink-downlink configuration after the base station of reporting system B changes, the coming into force the moment of the configuration of special subframe frame and this change, Notification Method can be by core net or wireless network.
The base station of system B is after receiving ConfigChange signaling, according to self uplink-downlink configuration that the content choice of ConfigChange signaling can be alignd with new system A uplink-downlink configuration and the configuration of special subframe frame, and bring into use new uplink-downlink configuration in the moment of coming into force, the up-downgoing of the etching system A and system B when coming into force still can be alignd.That is when system A prepares to change uplink-downlink configuration, reporting system B, the system B of making also change the uplink-downlink configuration of self, and the up-downgoing of final guarantee two systems still can be alignd.
Said system A can send ConfigChange signaling by core net, the base station of reporting system B, makes the base station of system B learn the information such as the uplink-downlink configuration that system A uses.
Wherein, system A can be LTE communication system, and system B can be Wimax 16e communication system, and the uplink-downlink configuration of the uplink-downlink configuration of system A and the system B corresponding to the configuration of special subframe frame can reference example 1,2,3.
The configuration of system A can choose that wherein several the uplink-downlink configuration of corresponding system B also only has several as a set in the various configurations only in example 1,2,3, and the optional several configuration one_to_one corresponding of system A.Such as, if system A is LTE system, system B is Wimax system, if system A only supports two kinds of configurations: configuration 1:LTE uplink-downlink configuration is 0, and special subframe frame is configured to 0; Configuration 2:LTE uplink-downlink configuration is 1, and special subframe frame is configured to 8, and two kinds of configurations that so system B can only support are: configuration 1: descending 11 symbols, up 27 symbols; Configuration 2: descending 27 symbols, up 18 symbols.
The present embodiment considers the problem because adjacent frequency bandwidth leakage causes near frequency system to interfere with each other, adopt the method increasing or reduce some communication system upstream time or downgoing time, solve the problem interfered with each other, ensure that terminal and base station can normal communications, ensure that the spectrum efficiency of wireless communication system.Meanwhile, can when the uplink-downlink configuration of a system change, the configuration of another system can also adjust accordingly, makes two systems remain the state that interference is less.
Embodiment 4
Fig. 8 shows a kind of communication system according to the embodiment of the present invention, and this communication system is second communication system 84, is adjacent frequency communication system with the first communication system 82; This second communication system 84 comprises:
Time-length configuration module 842, the second upstream time for configuring second communication system 84 is comprised in the first upstream time of the first communication system 82; Second downgoing time of configuration second communication system 84 is comprised in the first downgoing time of the first communication system 82.
First communication system 82 is Long Term Evolution LTE communication system, and second communication system 84 is worldwide interoperability for microwave access Wimax 16e communication system; Time-length configuration module 842 comprises:
Determining unit, for determining uplink-downlink configuration and the configuration of special subframe frame of LTE communication system; Setting unit, for arranging the up-downgoing symbolic number of Wimax 16e communication system according to the uplink-downlink configuration determined and the configuration of special subframe frame, second upstream time is comprised in the first upstream time, the second downgoing time is comprised in the first downgoing time.
First communication system and second communication system according to configure the up-downgoing time send data, the interference of its adjacent frequency will be smaller.
The uplink-downlink configuration of LTE communication system comprises 0 to 6 kind of configuration in uplink-downlink configuration table, and uplink-downlink configuration table, for shown in above-described embodiment table 1, repeats no more here;
The special subframe frame of LTE communication system configures 0 to the 8 kind of configuration comprised in special subframe frame allocation list, and special subframe frame allocation list, for shown in above-described embodiment table 2, repeats no more here.
Wherein, the uplink-downlink configuration of LTE communication system is the 0th configuration, when special subframe frame is configured to the one configuration in the 0 to 8, setting unit at least comprises one of following: the first descending setting unit is 11,15 or 17 for arranging the downlink symbol number of Wimax 16e communication system; First up setting unit, for arranging the uplink symbol number 27 or 30 of Wimax 16e communication system, the configuration of its special subframe frame is as shown in table 3 with the corresponding relation of the up-downgoing symbolic number of Wimax 16e communication system, repeats no more here.
The uplink-downlink configuration of LTE communication system is the 1st configuration, when special subframe frame is configured to the one configuration in the 0 to 8, setting unit at least comprises one of following: the second descending setting unit is 21,25 or 27 for arranging the downlink symbol number of Wimax 16e communication system; Second up setting unit, for arranging the uplink symbol number 18 of Wimax 16e communication system, the configuration of its special subframe frame is as shown in table 4 with the corresponding relation of the up-downgoing symbolic number of Wimax 16e communication system, repeats no more here.
The uplink-downlink configuration of LTE communication system is the 2nd configuration, when special subframe frame is configured to the one configuration in the 0 to 8, setting unit at least comprises one of following: the 3rd descending setting unit is 31,35 or 37 for arranging the downlink symbol number of Wimax 16e communication system; 3rd up setting unit, for arranging the uplink symbol number 9 of Wimax 16e communication system, the configuration of its special subframe frame is as shown in table 5 with the corresponding relation of the up-downgoing symbolic number of Wimax 16e communication system, repeats no more here.
This system also comprises: config update module, during the notice changed for the first upstream time and/or the first downgoing time that receive the first communication system 82, reconfigure in involved the first upstream time after the change of the second upstream time according to notice, configure in involved the first downgoing time after the change of described second downgoing time.
The present embodiment considers the problem because adjacent frequency bandwidth leakage causes near frequency system to interfere with each other, adopt the method increasing or reduce some communication system upstream time and/or downgoing time, solve the problem interfered with each other, ensure that terminal and base station can proper communications, ensure that the spectrum efficiency of wireless communication system.Meanwhile, can when the uplink-downlink configuration of a system change, the configuration of another system can also adjust accordingly, makes two systems remain the state that interference is less.
As can be seen from the above description, present invention achieves following technique effect: above embodiment considers the problem because adjacent frequency bandwidth leakage causes near frequency system to interfere with each other, adopt the method increasing or reduce some communication system upstream time and/or downgoing time, solve the problem interfered with each other, ensure that terminal and base station can normal communications, ensure that the spectrum efficiency of wireless communication system.Meanwhile, can when the uplink-downlink configuration of a system change, the configuration of another system can also adjust accordingly, makes two systems remain the state that interference is less.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the collocation method of physical resource in communication system, is characterized in that, comprising:
Second upstream time of configuration second communication system is comprised in the first upstream time of the first communication system, the second downgoing time configuring described second communication system is comprised in the first downgoing time of described first communication system, wherein, described first communication system and described second communication system are adjacent frequency communication system, wherein, described first communication system is Long Term Evolution LTE communication system, and described second communication system is worldwide interoperability for microwave access Wimax 16e communication system;
Wherein, configure described second upstream time and be comprised in described first upstream time, configure described second downgoing time and be comprised in described first downgoing time and comprise:
Determine uplink-downlink configuration and the configuration of special subframe frame of described LTE communication system;
The up-downgoing symbolic number of described Wimax 16e communication system is set according to the described uplink-downlink configuration determined and the configuration of described special subframe frame, described second upstream time is comprised in described first upstream time, described second downgoing time is comprised in described first downgoing time.
2. method according to claim 1, is characterized in that, the length difference of described first upstream time and described second upstream time is less than the first designated length; The length difference of described first downgoing time and described second downgoing time is less than the second designated length.
3. method according to claim 1, is characterized in that, the uplink-downlink configuration of described LTE communication system comprises 0 to 6 kind of configuration in uplink-downlink configuration table, and described uplink-downlink configuration table is:
Wherein, D represents descending sub frame, length is 1ms, for sending downlink symbol, U represents sub-frame of uplink, length 1ms, for sending uplink symbol, S represents special subframe, and length is 1ms, comprises the time UpPTS of transmission uplink symbol, sends the time DwPTS of downlink symbol and do not send the blank time Gp of any symbol;
The special subframe frame of described LTE communication system configures 0 to the 8 kind of configuration comprised in special subframe frame allocation list, and described special subframe frame allocation list is:
4. method according to claim 3, it is characterized in that, described uplink-downlink configuration is the 0th configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, the up-downgoing symbolic number arranging described Wimax 16e communication system according to the described uplink-downlink configuration determined and the configuration of described special subframe frame at least comprises one of following: the downlink symbol number arranging described Wimax 16e communication system is 11,15 or 17; The uplink symbol number 27 or 30 of described Wimax 16e communication system is set.
5. method according to claim 4, is characterized in that, described special subframe frame configuration is as follows with the corresponding relation of the up-downgoing symbolic number of described Wimax 16e communication system:
6. method according to claim 3, it is characterized in that, described uplink-downlink configuration is the 1st configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, the up-downgoing symbolic number arranging described Wimax 16e communication system according to the described uplink-downlink configuration determined and the configuration of described special subframe frame at least comprises one of following: the downlink symbol number arranging described Wimax 16e communication system is 21,25 or 27; The uplink symbol number 18 of described Wimax 16e communication system is set.
7. method according to claim 6, is characterized in that, described special subframe frame configuration is as follows with the corresponding relation of the up-downgoing symbolic number of described Wimax 16e communication system:
8. method according to claim 3, it is characterized in that, described uplink-downlink configuration is the 2nd configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, the up-downgoing symbolic number arranging described Wimax 16e communication system according to the described uplink-downlink configuration determined and the configuration of described special subframe frame at least comprises one of following: the downlink symbol number arranging described Wimax 16e communication system is 31,35 or 37; The uplink symbol number 9 of described Wimax 16e communication system is set.
9. method according to claim 7, is characterized in that, described special subframe frame configuration is as follows with the corresponding relation of the up-downgoing symbolic number of described Wimax 16e communication system:
10. the method according to any one of claim 1-9, is characterized in that, described first upstream time and/or described first downgoing time change, and described first communication system is by second communication system described in change notification; Described second communication system reconfigures in involved described first upstream time after the change of described second upstream time according to described notice, configures in involved described first downgoing time after the change of described second downgoing time.
11. methods according to claim 10, is characterized in that, second communication system described in change notification comprises by described first communication system:
Described first communication system sends configuration change signaling, the configuration of the uplink-downlink configuration after described configuration change signaling carries change, special subframe frame and coming into force the moment after changing by core net or wireless network to the base station of described second communication system.
12. 1 kinds of communication systems, is characterized in that, described communication system is second communication system, are adjacent frequency communication system with the first communication system; Described second communication system comprises:
Time-length configuration module, the second upstream time for configuring described second communication system is comprised in the first upstream time of described first communication system; The second downgoing time configuring described second communication system is comprised in the first downgoing time of described first communication system, described first communication system is Long Term Evolution LTE communication system, and described second communication system is worldwide interoperability for microwave access Wimax 16e communication system;
Wherein, described time-length configuration module also comprises:
Determining unit, for determining uplink-downlink configuration and the configuration of special subframe frame of described LTE communication system;
Setting unit, for arranging the up-downgoing symbolic number of described Wimax 16e communication system according to the described uplink-downlink configuration determined and the configuration of described special subframe frame, described second upstream time is comprised in described first upstream time, described second downgoing time is comprised in described first downgoing time.
13. systems according to claim 12, is characterized in that, the uplink-downlink configuration of described LTE communication system comprises 0 to 6 kind of configuration in uplink-downlink configuration table, and described uplink-downlink configuration table is:
Wherein, D represents descending sub frame, length is 1ms, for sending downlink symbol, U represents sub-frame of uplink, length 1ms, for sending uplink symbol, S represents special subframe, and length is 1ms, comprises the time UpPTS of transmission uplink symbol, sends the time DwPTS of downlink symbol and do not send the blank time Gp of any symbol;
The special subframe frame of described LTE communication system configures 0 to the 8 kind of configuration comprised in special subframe frame allocation list, and described special subframe frame allocation list is:
14. systems according to claim 13, it is characterized in that, the uplink-downlink configuration of described LTE communication system is the 0th configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, described setting unit at least comprises one of following: the first descending setting unit is 11,15 or 17 for arranging the downlink symbol number of described Wimax 16e communication system; First up setting unit, for arranging the uplink symbol number 27 or 30 of described Wimax 16e communication system.
15. systems according to claim 13, it is characterized in that, the uplink-downlink configuration of described LTE communication system is the 1st configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, described setting unit at least comprises one of following: the second descending setting unit is 21,25 or 27 for arranging the downlink symbol number of described Wimax 16e communication system; Second up setting unit, for arranging the uplink symbol number 18 of described Wimax 16e communication system.
16. systems according to claim 13, it is characterized in that, the uplink-downlink configuration of described LTE communication system is the 2nd configuration, when described special subframe frame is configured to the one configuration in the 0 to 8, described setting unit at least comprises one of following: the 3rd descending setting unit is 31,35 or 37 for arranging the downlink symbol number of described Wimax 16e communication system; 3rd up setting unit, for arranging the uplink symbol number 9 of described Wimax 16e communication system.
17. systems according to any one of claim 12-16, it is characterized in that, described system also comprises: config update module, during the notice changed for described first upstream time and/or described first downgoing time that receive described first communication system, reconfigure in involved described first upstream time after the change of described second upstream time according to described notice, configure in involved described first downgoing time after the change of described second downgoing time.
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| CN103687019B (en) * | 2012-09-25 | 2017-07-14 | 电信科学技术研究院 | The update method and equipment of time division duplex uplink-downlink configuration |
| WO2017049523A1 (en) | 2015-09-24 | 2017-03-30 | Qualcomm Incorporated | Increased uplink pilot time slot length in special subframes |
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| WO2009061790A2 (en) * | 2007-11-07 | 2009-05-14 | Nextwave Broadband Inc. | Advanced technology frame structure with backward compatibility |
| CN101631316A (en) * | 2008-07-16 | 2010-01-20 | 中国移动通信集团公司 | Method and equipment for improving frequency spectrum utilization rate in TDD system |
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| WO2009061790A2 (en) * | 2007-11-07 | 2009-05-14 | Nextwave Broadband Inc. | Advanced technology frame structure with backward compatibility |
| CN101631316A (en) * | 2008-07-16 | 2010-01-20 | 中国移动通信集团公司 | Method and equipment for improving frequency spectrum utilization rate in TDD system |
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