CN102710575A - Sub-channelizing and resource mapping method for wireless resources - Google Patents
Sub-channelizing and resource mapping method for wireless resources Download PDFInfo
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- CN102710575A CN102710575A CN2012101866407A CN201210186640A CN102710575A CN 102710575 A CN102710575 A CN 102710575A CN 2012101866407 A CN2012101866407 A CN 2012101866407A CN 201210186640 A CN201210186640 A CN 201210186640A CN 102710575 A CN102710575 A CN 102710575A
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Abstract
The invention discloses a sub-channelizing and resource mapping method for wireless resources. The method comprises the following step of: determining sub-channelizing and resource mapping processes of the wireless resources or parameters in the processes according to bandwidth characteristics or scheduling characteristics supported by a wireless communication system, so that the sub-channelizing and resource mapping processes of the wireless resources or the parameters in the processes are different for different bandwidth characteristics or scheduling characteristics. By the method, the sub-channelizing and resource mapping processes of the wireless communication system are normalized, so that the spectral efficiency of a future wireless communication system is ensured.
Description
Technical field
The present invention relates to the communications field, relate in particular to sub-channelizing and method for mapping resource.
Background technology
In the wireless communication system; The base station is meant the equipment that service is provided for the terminal, and the base station communicates through Uplink/Downlink and terminal, wherein; The up direction that is meant from terminal to base station; The descending direction that is meant from the base station to the terminal, a plurality of terminals can be sent data through up link to the base station simultaneously, also can receive data through down link from the base station simultaneously.Adopt the base station to realize in the wireless communication system of wireless resource scheduling control; The scheduling of system wireless resource distributes to be accomplished by the base station; The employable resource allocation information of institute etc. when uplink is carried out at resource allocation information when for example, being provided the base station and transmitted by the base station and terminal.
In commercial wireless communication system; The base station is a dispatching cycle with a radio frames when the Radio Resource that scheduling is eated dishes without rice or wine usually; A radio frames is divided into the identical Resource Units (for example a time slot or a code word) of several sizes dispatches, the base station can be dispatched all resources in the radio frames and to all terminals that the base station covers data or multimedia service is provided in dispatching cycle.For example; With global system for mobile communications (Global System for Mobile communication; Abbreviate GSM as) in the second generation wireless communication system of representative, the base station is divided into the Radio Resource on each frequency time division multiple access (Time Division Multiple Address the abbreviates TDMA as) radio frames of a 4.615ms; Each radio frames comprises 8 identical time slots; Wherein, a time slot can transmit the speech channel of a full rate or two half rates, also can realize the data service of low speed; With wireless universal packet service (General Packet Radio Service; Abbreviate GPRS as) in the 2.5th generation wireless communication system for representative; Through introducing the packet switching of carrying out based on fixing time slot; Can data service rate be brought up to more than the 100kbps, but still can't support multimedia services such as video; And with TD SDMA (Time-Division Sychronization Code Division Multiple Address; Abbreviate TD-SCDMA as) in the third generation wireless communication system of representative; It is the radio frames in cycle that the base station is divided into the Radio Resource of eating dishes without rice or wine with 10ms equally; Each radio frames comprises 14 conventional time slots and 6 special time slots, and wherein, conventional time slot is used to transmit concrete business and signaling; On each conventional time slot, the user is distinguished through different code word in the base station.
Develop rapidly along with the communication technology; Commercial wireless communication system can't satisfy the demand of people to high transfer rate, high-speed mobile and low time delay; Show growing to high-speed data and smooth multimedia service demand, this has also proposed new requirement and challenge to the design of future broadband wireless communication systems.
With long evolving system (Long Term Evolution; Abbreviate LTE as), super broad band radio communication (Ultra Mobile Broadband; Abbreviate UMB as) and IEEE 802.16m be that the future broadband wireless communication systems of representative is owing to adopted OFDM (Orthogonal Frequency Division Multiplexing; Abbreviate OFDM as) and OFDM (Orthogonal Frequency Division Multiple Address abbreviates OFDMA as) technology, though maybe for providing high transfer rate to provide; But RRM has also been proposed new constraint, has required below future broadband wireless communication systems is proposed:
One, along with the increase of message volume, the system bandwidth that causes future broadband wireless communication systems to take is increasing, requires future broadband wireless communication systems to support different system bandwidths to support the terminal of dissimilar or ability simultaneously;
Two, following radio spectrum resources is more and more come anxiety, in order to make full use of the band resource of dispersion, requires future broadband wireless communication systems to support multi-carrier operation;
Three, owing to need future the type of service of support more and more; And the service quality of different service types (Quality of Service; Abbreviate QoS as) demand different; Demand to radio resource unit is also different, especially internet protocol voice technology (Voice over Internet Protocol abbreviates VoIP as) packet and little control class message;
Four, more prior is that the frame structure and the control channel of following radio communication is also very big to RRM.
Can find out; Present radio resource unit (for example time slot or code word) and corresponding sub-channelizing thereof and resource mapping process can not fully satisfy the needs of future broadband wireless communication systems; For guaranteeing the spectrum efficiency of future broadband wireless communication systems, be necessary to design a kind of sub-channelizing and sub-channelizing and method for mapping resource of new Radio Resource.
Summary of the invention
Consider the present radio resource unit that exists in the correlation technique and corresponding sub-channelizing thereof and resource mapping process can not fully satisfy future broadband wireless communication systems needs problem and the present invention is proposed; For this reason; Main purpose of the present invention is to provide the sub-channelizing and the method for mapping resource of Radio Resource, to address the above problem.
A kind of sub-channelizing and method for mapping resource of line resource are provided according to an aspect of the present invention.
Sub-channelizing and method for mapping resource according to line resource of the present invention comprise: bandwidth feature or the dispatch feature supported according to wireless communication system; Confirm sub-channelizing and the process of resource mapping or the parameter in the process of its Radio Resource, the Radio Resource sub-channelizing is different with the process or the parameter in the process of resource mapping when making different bandwidth characteristic or dispatch feature.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided according to a further aspect in the invention.
Sub-channelizing and method for mapping resource according to Radio Resource of the present invention comprise: according to the functional character and/or the dispatch feature of frame in the frame structure of wireless communication system or subframe; Confirm sub-channelizing and the process of resource mapping or the parameter in the process of Radio Resource, make frame or subframe have different sub-channelizings and the process of resource mapping or the parameter of process with difference in functionality characteristic and/or dispatch feature.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided in accordance with a further aspect of the present invention.
Sub-channelizing and method for mapping resource according to Radio Resource of the present invention comprise: the bandwidth of wireless communication system is divided into a plurality of physical resource unit; With N physical resource unit is that unit carries out replacement operator to a plurality of physical resource unit; And the physical resource unit that will carry out behind the replacement operator is mapped in one or more frequency partition; Wherein, different frequency partition are independently selected the N value.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided in accordance with a further aspect of the present invention.
Sub-channelizing according to Radio Resource of the present invention comprises with method for mapping resource: the frequency partition of each subframe in the expansion sub-frame is set to identical; Wherein, The radio resource unit of expansion sub-frame and non-expansion sub-frame shared sub-carrier number on frequency domain is identical; And the shared symbolic number of the radio resource unit of expansion sub-frame shared symbolic number and expansion sub-frame on time domain is identical.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided in accordance with a further aspect of the present invention.
Sub-channelizing and method for mapping resource according to Radio Resource of the present invention comprise: a frequency partition is divided into one or more distributed resources zone and/or one or more centralized resources zone.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided in accordance with a further aspect of the present invention.
Sub-channelizing and method for mapping resource according to Radio Resource of the present invention comprise: Radio Resource is mapped as one or more distributed resource units and/or one or more centralized resources unit; To one or more fractionation the in the one or more and/or centralized resources unit in the distributed resource units, obtain a plurality of distributed resource subelements and/or a plurality of centralized resources subelement; The Resource Block of forming distributed resource units is split, obtain a plurality of child resource pieces.
A kind of sub-channelizing and method for mapping resource of Radio Resource are provided in accordance with a further aspect of the present invention.
Sub-channelizing and method for mapping resource according to Radio Resource of the present invention comprise: in the occupied subframe of broadcast channel; The Radio Resource that subframe is occupied is divided into a plurality of physical resource unit; And be that unit is mapped to a plurality of physical resource unit in one or more frequency partition through replacement operator with one or more physical resource unit; Wherein, each frequency partition is divided into one or more distributed resources zone.
Through above-mentioned at least one technical scheme of the present invention,, guaranteed the spectrum efficiency of future broadband wireless communication systems through the sub-channelizing and the resource mapping process of standard wireless communication system.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the sketch map according to the frame structure of the wireless communication system of correlation technique;
Fig. 2 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment one and the flow chart of method for mapping resource;
Fig. 3 is according to the sub-channelizing of the 5MHz wireless communication system of the embodiment of the invention and the sketch map of resource mapping process;
Fig. 4 is according to the sub-channelizing of the 10MHz wireless communication system of the embodiment of the invention and the sketch map of resource mapping process;
Fig. 5 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment two and the flow chart of method for mapping resource;
Fig. 6 is the sketch map according to the sub-channelizing of the Radio Resource of the different subframes of the inventive method embodiment and resource mapping process;
Fig. 7 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment three and the flow chart of method for mapping resource;
Fig. 8 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment four and the flow chart of method for mapping resource;
Fig. 9 is the sketch map according to the sub-channelizing of the Radio Resource of the expansion sub-frame of the inventive method embodiment and resource mapping process;
Figure 10 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment five and the flow chart of method for mapping resource;
Figure 11 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment six and the flow chart of method for mapping resource;
Figure 12 is according to the sub-channelizing of the Radio Resource of the inventive method embodiment seven and the flow chart of method for mapping resource;
Figure 13 is the sketch map according to the sub-channelizing of the BCCH of the inventive method embodiment and resource mapping process.
Embodiment
Based on the problems referred to above, the present invention proposes a kind of sub-channelizing and sub-channelizing and method for mapping resource of Radio Resource to guarantee the spectrum efficiency of future broadband wireless communication systems.
The main foundation of resource sub-channelizing and resource mapping is corresponding frame structure in the wireless communication system; According to frame structure the scheduling structure of system wireless resource is divided; In order to accomplish, need sub-channelizing and resource be shone upon the resource allocation unit that the radio physical resource is mapped as logic to wireless resource allocation.In the wireless communication system in future (for example, in the wireless communication system that is the basis with OFDM and OFDMA technology), generally need the resource area that Radio Resource is divided into different brackets be dispatched; For example; Radio Resource is divided into superframe, frame, subframe and symbol dispatches, concrete operations are: Radio Resource is divided into continuous superframe of time, wherein; Each superframe comprises a plurality of frames; Each frame comprises a plurality of subframes, and subframe is made up of the most basic OFDM symbol, and the number of frame, subframe and OFDM symbol is by the basic parameter decision of ofdm system in the superframe.In addition, in order to improve efficiency of transmission, can a plurality of subframes be carried out cascade and realize uniform dispatching.
Fig. 1 shows the sketch map of the frame structure of wireless communication system, and is as shown in Figure 1, and Radio Resource is divided into the duration superframe; Wherein, Each superframe comprises 4 frames, and each frame comprises 8 sub-frame, and each subframe is made up of 6 basic OFDM symbols; In order to improve dispatching efficiency, last two sub-frame cascades are realized uniform dispatching together.Based on this, it is the basic characteristics of future broadband wireless communication systems that Radio Resource is divided into that several less relatively zones (like subframe) dispatch.
To combine accompanying drawing to describe the present invention in detail below.
Method embodiment one
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Fig. 2 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and as shown in Figure 2, this method may further comprise the steps:
Step S202 according to bandwidth feature or the dispatch feature that wireless communication system is supported, confirms sub-channelizing and the process of resource mapping or the parameter in the process of its Radio Resource;
Step S204, the Radio Resource sub-channelizing is different with the process or the parameter in the process of resource mapping when different bandwidth characteristic or dispatch feature.
The technical scheme that provides through the embodiment of the invention; Through different multicarrier information and the bandwidth information of supporting according to wireless communication system; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Wherein, above-mentioned bandwidth feature comprises one of following and combination: a plurality of carrier waves on the continuous frequency range of wireless communication system support, wireless communication system support a plurality of carrier waves, the wireless communication system on the discontinuous frequency band to support the single carrier wave under the different bandwidth.
Wherein, Dispatch feature comprises one of following and combination: the frequency multiplexing mode that wireless communication system uses,, the setting of expansion sub-frame in the type of service of partial frequency multiplexing mode that wireless communication system uses, Resource Unit type that wireless communication system is supported, wireless communication system scheduling, wireless communication system, the type of Resource Unit comprises one of following and combination: centralized resources unit, distributed resource units.
Wherein, Said process comprises external displacement and inner displacement at least; Wherein, External displacement is for to carry out replacement operator with physical resource unit, and the physical resource unit that will carry out behind the replacement operator is mapped to one or more frequency partition, and inside is replaced into the Resource Unit in each frequency partition is replaced into centralized resources unit and/or distributed resource units.
Wherein, the parameter difference in the process is meant one of following and combination: sub-channelizing is different with the unit of resource mapping displace operation, sub-channelizing is different with resource mapping displace sequence, sub-channelizing is different with the division that resource is shone upon the medium frequency subregion, sub-channelizing is regional different with centralized resources zone during resource is shone upon and/or distributed resource.
Wherein, The sub-channelizing of Radio Resource and resource mapping process are mapped to physical resource unit in the frequency partition (Partition) through external displacement (Permutation), and the sub-channelizing of Radio Resource and resource mapping process are mapped to distributed resource units through inner Permutation with physical sub-carrier or Resource Block (Tile); Permutation is meant replacement operator, and frequency Partition is meant the set of subcarrier, and Tile is meant a Resource Block that comprises independent pilot sub-carrier and data subcarrier.
Show according to the sub-channelizing of the 5MHz wireless communication system of the embodiment of the invention and the flow chart of resource mapping process like Fig. 3; Fig. 4 shows according to the sub-channelizing of the 10MHz wireless communication system of the embodiment of the invention and the flow chart of resource mapping process; As shown in Figure 3; The unit that the wireless communication system of 5MHz adopts when physical resource unit is carried out outside Permutation is 1 physical resource unit; As shown in Figure 4, the unit that the wireless communication system of 10MHz adopts when physical resource unit is carried out outside Permutation is 2 physical resource unit.
Method embodiment two
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Fig. 5 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and as shown in Figure 5, this method may further comprise the steps:
Step S502 according to the functional character and/or the dispatch feature of frame in the frame structure of wireless communication system or subframe, confirms sub-channelizing and the process of resource mapping or the parameter of process of Radio Resource;
Step S504, frame or subframe with difference in functionality characteristic and/or dispatch feature have different sub-channelizings and the process of resource mapping or the parameter of process.
Wherein, the functional character of frame or subframe comprises one of following and combination: whether frame or subframe comprise superframe head and/or synchronizing channel, frame or subframe whether needs provide service, frame or subframe whether to comprise control channel to a plurality of wireless communication systems simultaneously.
Wherein, the dispatch feature of frame or subframe comprises one of following and combination: the partial frequency multiplexing mode that the frequency multiplexing mode that frame or subframe are used, frame or subframe are used,, whether type of service, the subframe of frame or subframe the Resource Unit type, frame or the subframe scheduling that adopt be expansion sub-frame.
Wherein, Said process comprises external displacement and inner displacement at least; Wherein, External displacement is for to carry out replacement operator with physical resource unit, and the physical resource unit that will carry out behind the replacement operator is mapped to one or more frequency partition, and inside is replaced into the Resource Unit in each frequency partition is replaced into centralized resources unit and/or distributed resource units.
Wherein, the parameter difference in the process is meant one of following and combination: sub-channelizing is different with the unit of resource mapping displace operation, sub-channelizing is different with resource mapping displace sequence, sub-channelizing is different with the division that resource is shone upon the medium frequency subregion, sub-channelizing is regional different with centralized resources zone during resource is shone upon and/or distributed resource.
The technical scheme that provides through the embodiment of the invention; Through architectural feature or dispatch feature according to subframe; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Fig. 6 shows according to the sub-channelizing of method wireless communication system shown in Figure 5 and the sketch map of resource mapping process, can be found out that by Fig. 6 the downlink broadcast channel occupies subframe 0; The available physical subcarrier is divided into physical resource unit, and is divided into 3 frequency Partition, wherein; Only comprise the distributed resource zone among each frequency Partition, subframe 1 is different with subframe 0, and subframe 1 does not have broadcast channel; Be divided into K frequency Partiton; Wherein, each frequency Partition comprises distributed resource zone and centralized resources zone, and subframe 2 is similar with the frequency Partition division of subframe 1; But different with subframe 1 is that the outside Permutation unit of subframe 2 is 1 physical resource unit and 4 physical resource unit.
Method embodiment three
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Fig. 7 is according to the sub-channelizing of the embodiment of the invention and the flow chart of method for mapping resource, and as shown in Figure 7, this method may further comprise the steps:
Step S702 is divided into a plurality of physical resource unit with the bandwidth of wireless communication system;
Step S704; With N physical resource unit is that unit carries out above-mentioned a plurality of physical resource unit are carried out replacement operator to a plurality of physical resource unit; And will carry out the replacement operator physical resource unit and be mapped in one or more frequency partition, wherein, different frequency partition can independently be selected the N value; Different frequency partition can be selected identical N value, also can select different N values.
The technical scheme that provides through the embodiment of the invention; Carrier number and symbolic number through physical resource unit are divided the reason Resource Unit; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Wherein, Can be through predetermined value set be set; From above-mentioned predetermined value set, choose the value of N and the bandwidth feature that wireless communication system is shared and/or dispatch feature and predetermined value set notice terminal according to the shared bandwidth feature of wireless communication system and/or dispatch feature; Bandwidth feature and/or dispatch feature that the terminal is shared according to wireless communication system are chosen the value of N from predetermined value set.
Preferably, also can use the N value is set in advance, this N value can be predesignated in standard agreement.
Wherein, Above-mentioned dispatch feature comprises one of following and combination: whether needs provide service to a plurality of wireless communication systems simultaneously for setting, the control channel setting in the wireless communication system, the wireless communication system of expansion sub-frame in the Resource Unit type of the frequency multiplexing mode that wireless communication system uses, partial frequency multiplexing mode that wireless communication system uses, wireless communication system support, the type of service of wireless communication system scheduling, the wireless communication system; Wherein, expansion sub-frame is meant by two of uniform dispatching or more than two continuous subframes.
Wherein, The unit that physical resource unit adopts when carrying out outside Permutation is relevant with bandwidth; As shown in Figure 3; The unit that the wireless communication system of 5MHz adopts when physical resource unit is carried out outside Permutation is 1 physical resource unit, and is as shown in Figure 4, and the unit that the wireless communication system of 10MHz adopts when physical resource unit is carried out outside Permutation is 2 physical resource unit.
Preferably, the terminal can be confirmed the value of N through following dual mode:
First kind of mode: can be through predetermined value set is set; From above-mentioned predetermined value set, choose the value of N and the bandwidth feature that wireless communication system is shared and/or dispatch feature and predetermined value set notice terminal according to the shared bandwidth feature of wireless communication system and/or dispatch feature; Bandwidth feature and/or dispatch feature that the terminal is shared according to wireless communication system are chosen the value of N from predetermined value set.Physical resource unit is externally in the Permutation process; The base station specifies the value of N to gather (promptly; The predetermined value set of preceding text), and the bandwidth feature that takies according to wireless communication system and/or the dispatch feature value of in above-mentioned value set, confirming N, promptly the bandwidth feature and/or the dispatch feature that take of the value of N and system has corresponding relation; And the bandwidth feature that wireless communication system is shared and/or dispatch feature and this value set set notice terminal; Bandwidth feature and/or dispatch feature that the terminal is shared according to wireless communication system, the value of definite N from the value set is carried out sub-channelizing and resource mapping according to this N value;
The second way: the base station is through the value notice terminal of main broadcast channel with N.
For example, for support 5MHz, the wireless communication system of 10MHz and 20MHz, the N value in the Permutation process can be selected from set " 1; 2,4 ", and 5MHz, 10MHz and 20MHz can distinguish corresponding 1; 2 and 4, the terminal obtains corresponding N value according to the bandwidth information of system, perhaps; As shown in Figure 3, broadcast the N value base station in main broadcast channel, and the terminal obtains the N value through the decoding broadcast channel.
Method embodiment four
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Fig. 8 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and as shown in Figure 8, this method may further comprise the steps:
Step S802; The frequency partition of each subframe in the expansion sub-frame is set to identical; Wherein, The radio resource unit of expansion sub-frame and non-expansion sub-frame shared sub-carrier number on frequency domain is identical, and the shared symbolic number of the radio resource unit of expansion sub-frame shared symbolic number and expansion sub-frame on time domain is identical.
The technical scheme that provides through the embodiment of the invention; Through the structure of each subframe in the expansion sub-frame is set; Come the sub-channelizing and the resource mapping process of standard wireless communication system, give full play of the technical advantage of future broadband wireless communication systems frame structure, strengthened the flexibility of wireless resource scheduling in the wireless communication system; Thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Wherein, regional shared physical resource unit or physical sub-carrier of centralized resources zone in the frequency partition of each subframe in the expansion sub-frame and/or distributed resource is identical.
Fig. 9 shows the sketch map according to the sub-channelizing of the wireless communication system of method shown in Figure 8 and resource mapping process; As shown in Figure 9; Subframe 2 is formed 1 expansion sub-frame with subframe 3, and wherein, the subframe 2 in this expansion sub-frame is divided identical with the frequency partition of subframe 3; And the Resource Unit of this expansion sub-frame is big or small identical on frequency domain of the Resource Unit of the size on the frequency and non-expansion sub-frame (for example subframe 1); All be 18 number of sub-carrier, the Resource Unit of this expansion sub-frame occupies the symbolic number of 2 sub-frame (subframe 2 and subframe 3), i.e. 12 symbols on time domain.
Method embodiment five
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Figure 10 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and shown in figure 10, this method may further comprise the steps:
Step S1002 is divided into one or more distributed resources zone and/or one or more centralized resources zone with a frequency partition.
The technical scheme that provides through the embodiment of the invention; Through a frequency Partition being divided into distributed resource zone or centralized resources zone; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Wherein, A frequency partition is divided under the situation in one or more distributed resources zone; Can the physical resource unit in the distributed resource zone that is arranged in down link be carried out the replacement operator of subcarrier level; Obtain descending distributed resource units, and the physical resource unit that will be arranged in the distributed resource zone of up link carries out the replacement operator of subcarrier level and/or Resource Block level, obtain up distributed resource units;
Wherein, A frequency partition is divided under the situation in one or more centralized resources zone; Can be that unit shines upon with one or more physical resource unit with the physical resource unit in one or more centralized resources zone, obtain the centralized resources unit.
As shown in Figure 3; Each frequency Partition is divided into a distributed resource zone and a centralized resources zone; The physical resource unit that is arranged in the centralized resources zone is that unit directly is mapped as the centralized resources unit with a physical resource unit; The centralized resources cell size equals a physical resource unit; For example, the physical resource unit that is arranged in the centralized resources zone is that unit directly is mapped as the centralized resources unit with 2 physical resource unit, and the centralized resources cell size equals 2 physical resource unit.
Method embodiment six
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Figure 11 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and shown in figure 11, this method may further comprise the steps:
Step S1102 is mapped as one or more distributed resource units and/or one or more centralized resources unit with Radio Resource;
Step S1104; To one or more fractionation the in the one or more and/or centralized resources unit in the distributed resource units; Obtain a plurality of distributed resource subelements and/or a plurality of centralized resources subelement, wherein, the size of a plurality of distributed resource subelements is all identical;
Step S1106 splits the Resource Block of forming distributed resource units, obtains a plurality of child resource pieces, and wherein, the size of each child resource piece is all identical.
The technical scheme that provides through the embodiment of the invention; Through Radio Resource being mapped as one or more distributed resource units; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Wherein, above-mentioned child resource piece is used to carry data or control information, and wherein, it is one of following that this control information comprises at least: HARQ feedback information, CQI feedback information, power control information, pre-coding matrix information.
As shown in Figure 9, the size of a distributed resource units (DRU) or a centralized resources unit (LLRU) is 18x6, i.e. frequency domain 18 number of sub-carrier; Time domain occupies 6 symbols; Since the control information data amount less, in order to improve spectrum efficiency, can with DRU or LLRU splits into sub-DRU or sub-LLRU comes control information transmission; Wherein, Sub-DRU or sub-LLRU can be for one of following: 3 6x6,2 9x6,3 18x2, wherein, control information can comprise one of following and combination: HARQ feedback information, CQI feedback information, power control information, pre-coding matrix information.
Wherein, if up DRU is made up of the Tile of 3 6x6, then can each 6x6 be split as the sub-Tile of equal-sized 2 6x3, the sub-Tile of totally 6 6x3 transmits above-mentioned control information.
Need to prove that shape such as fxt are illustrated in frequency domain and occupy the f number of sub-carrier, occupy the Resource Unit of t OFDMA symbol simultaneously in time domain; Wherein, f and t are natural number, for example; 6x3 is illustrated in frequency domain and occupies 6 number of sub-carrier, occupies the Resource Unit of 3 OFDMA symbols simultaneously in time domain.
Method embodiment seven
According to the embodiment of the invention, a kind of sub-channelizing and method for mapping resource of Radio Resource is provided.
Figure 12 is according to the sub-channelizing of the Radio Resource of the embodiment of the invention and the flow chart of method for mapping resource, and shown in figure 12, this method may further comprise the steps:
Step S1202, in the occupied subframe of broadcast channel, the Radio Resource that subframe is occupied is divided into a plurality of physical resource unit, and wherein, broadcast channel is the broadcast channel in the superframe head;
Step S1204 is that unit is mapped to a plurality of physical resource unit in one or more frequency partition through replacement operator with one or more physical resource unit, and wherein, each frequency partition is divided into one or more distributed resources zone.
The technical scheme that provides through the embodiment of the invention; Carrier number and symbolic number through according to physical resource unit are divided broadcast channel; Come the sub-channelizing and the resource mapping process of standard wireless communication system; Strengthen the flexibility of wireless resource scheduling in the wireless communication system, thereby guaranteed the spectrum efficiency of wireless communication system, improved the dispatching efficiency of Radio Resource.
Figure 13 shows the sub-channelizing of BCCH and the sketch map of resource mapping process; Shown in figure 13; Wherein, Only comprise distributed resource zone and corresponding distributed resource units among the frequency Partition of BCCH; And not only comprising the distributed resource zone, Fig. 3 and Fig. 4 medium frequency Partition can also comprise the centralized resources zone; And the superframe head takies the 1st sub-frame in the superframe, and the sub-channelizing of this subframe and resource mapping process are divided into a plurality of physical resource unit according to carrier number and the symbolic number that physical resource unit occupies with all bandwidth that the superframe head occupies, and is that unit carries out physical resource unit to be mapped in 3 frequency Partition behind the outside Permutation with 1 physical resource unit; A frequency Partition is divided into a distributed resource zone, does not comprise the centralized resources zone.
As stated, by means of the sub-channelizing and the method for mapping resource of Radio Resource provided by the invention, can support future broadband wireless communication systems; Sub-channelizing and resource mapping process through its radio resource units of standard; Strengthened the flexibility of wireless resource scheduling in the future broadband wireless communication systems, the adequate resources scheduling can be selected according to the scheduling needs in the base station, and the present invention has adapted to the scheduling requirement of future broadband wireless communication systems; Give full play of the technical advantage of future broadband wireless communication systems frame structure; Improve the dispatching efficiency of Radio Resource, can ensure the QoS (service quality) of various types of traffic, guarantee the spectrum efficiency of future broadband wireless communication systems
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 (9)
1. the sub-channelizing of a Radio Resource and method for mapping resource is characterized in that, comprising:
The frequency partition of each subframe in the expansion sub-frame is set to identical; Wherein, The radio resource unit of expansion sub-frame and non-expansion sub-frame shared sub-carrier number on frequency domain is identical; And the shared symbolic number of the radio resource unit of expansion sub-frame shared symbolic number and expansion sub-frame on time domain is identical.
2. method according to claim 1 is characterized in that, regional shared physical resource unit or physical sub-carrier of centralized resources zone in the frequency partition of each subframe in the said expansion sub-frame and/or distributed resource is identical.
3. the sub-channelizing of a Radio Resource and method for mapping resource is characterized in that, comprising:
A frequency partition is divided into one or more distributed resources zone and/or one or more centralized resources zone.
4. method according to claim 3 is characterized in that, also comprises:
The physical resource unit that will be arranged in the said distributed resource zone of down link is carried out the replacement operator of subcarrier level, obtains descending distributed resource units;
The physical resource unit that will be arranged in the said distributed resource zone of up link is carried out the replacement operator of subcarrier level and/or Resource Block level, obtains up distributed resource units.
5. method according to claim 3 is characterized in that, also comprises:
Is that unit shines upon with the physical resource unit in said one or more centralized resources zone with one or more physical resource unit, obtains the centralized resources unit.
6. the sub-channelizing of a Radio Resource and method for mapping resource is characterized in that, comprising:
Radio Resource is mapped as one or more distributed resource units and/or one or more centralized resources unit;
To one or more fractionation the in the one or more and/or centralized resources unit in the said distributed resource units, obtain a plurality of distributed resource subelements and/or a plurality of centralized resources subelement;
The Resource Block of forming distributed resource units is split, obtain a plurality of child resource pieces.
7. method according to claim 6 is characterized in that the size of said a plurality of distributed resource subelements is all identical.
8. method according to claim 6 is characterized in that the size of said a plurality of child resource pieces is all identical.
9. according to each described method in the claim 6 to 8; It is characterized in that; Said child resource piece is used to carry data or control information, and wherein, it is one of following that said control information comprises at least: HARQ feedback information, CQI feedback information, power control information, pre-coding matrix information.
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Application publication date: 20121003 |