CN101159975B - Air-interface resource allocation indicating method, device and subscriber terminal - Google Patents
Air-interface resource allocation indicating method, device and subscriber terminal Download PDFInfo
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Abstract
The invention provides a method, a device and a user terminal of empty resources allocation indication, which solves the problem of effective data throughput reduction caused by resources allocation information occupying large amount of empty resources in prior art. In the invention, a base station performs empty resources grouping, forms a plurality of empty resources groups and gives instructions to the terminal of a first class resources allocation information, which includes empty resources grouping mark information; when the base station initiates or receives prior business on the terminal, notify the terminal of the empty resources grouping mark information corresponding with prior business type, allocate empty resources to the terminal in the empty resources grouping and give instructions to the terminal of a second class resources allocation information of the grouping resources allocation result. The adoption of the invention can reduce the empty resources occupied by the resources allocation information.
Description
Technical field
The present invention relates to the wireless mobile communications field, relate in particular to a kind of air-interface resource allocation indicating method, device and user terminal.
Background technology
Development along with mobile radio system, need the business of its support to develop into the mixed business of data and speech from simple voice service, until data service at a high speed, people wish can both receive in any place such as send Email, carry out data services such as network browsing.
Speech business has tangible different with the desired service quality of data service.For speech business, require than higher real-time, to guarantee that the caller can exchange smoothly; This business is relatively average in time, and user terminal can be conversed before on-hook usually always, and the speed of speech business is relatively low, and also more fixing, up-downgoing speed is symmetrical.
For data service, user terminal can be waited for the response of network a little doing such as surfing the web, download, sending out in these activities of mail; Simultaneously, the initiation of partial data business is paroxysmal, behind each professional end of transmission, user terminal has the reading time of an indefinite duration, carry out in the process in business, user terminal wishes to obtain high as far as possible message transmission rate, reduces data transmission period.This class data service has sudden stronger IP characteristic of field, makes in wireless air interface, often need be according to changes in flow rate dynamic assignment physical resource, and existing air interface protocols standard is exactly to design thus as IEEE802.16e etc.
But also there is the partial data business to exist speed more constant, the characteristics that the duration is relatively long, the physical resource that also needs this moment air interface to distribute keeps certain continuation, and the air protocol in the existing 3GPP standard is exactly to design thus.Along with data service dominate gradually in wireless communication needs, press for the air-interface standard that good support can both be provided all data services, frame structure improves adaptability to need physical layer to provide flexibly.
One of physical-layer techniques of the support of IEEE802.16e is OFDMA (Orthogonal FrequencyDivision Multiple Access, an OFDM).OFDMA is the combination of OFDM (OrthogonalFrequency Division Multiplexing, OFDM) modulation technique and FDMA (FrequencyDivision Multiple Access, frequency division multiple access) multi-access mode.
The OFDM technology becomes given channel distribution the subcarrier of many quadratures in frequency domain, parallel modulation of each subcarrier and transmission data.The OFDMA system is divided into more than one sub carrier group with all subcarriers of ofdm system usually, each sub carrier group comprises a plurality of subcarriers, and each sub carrier group that will be wherein is mapped as the subchannel of a logic, and each subchannel identifies by sub-channel index.In resource allocation, bandwidth demand according to user terminal distributes one or more than one subchannel to user terminal, and the OFDMA system can be according to the distribution condition of each mobile subscriber terminal subchannel of situation of change real time altering of factors such as current channel circumstance, allocated bandwidth, to obtain the higher frequency spectrum utilance.
From top description as can be known, the OFDMA system is the least unit that frequency domain resource is distributed with the subchannel, promptly can distribute one or more subchannel for it according to the bandwidth demand of user terminal, user terminal uses and is pairing all the subcarrier transmission data of the subchannel of its distribution.
At present, the sudden characteristics of data carried by data business in order to adapt to, improve system effectiveness, in existing OFDMA system, in each OFDMA frame, all need reasonably to distribute, and the allocation of radio resources situation of present frame is broadcast to each user terminal, here the also the same content that comprises two aspects of Radio Resource: time-domain resource and frequency domain resource with other system by the broadcast in every frame according to the bandwidth demand of user terminal Radio Resource to system.
Fig. 1 shows the frame structure of the OFDMA system time division duplex of IEEE802.16 regulation.As can be seen from Figure 1, in the OFDMA system, the two-dimentional resource of forming by time domain and frequency domain for the user terminal assigned radio resource, wherein, time domain is corresponding to the OFDMA symbol, and wherein, k, k+1......k+28 represent the index according to each OFDMA symbol of the sequencing transmission of time; And frequency domain is corresponding to each subchannel, and wherein, s, s+1......s+L represent that the OFDMA system assignment gives each sub-channel index of user terminal.Downlink burst data bag 1～5 among the figure and uplink burst data bag 1～5 are illustrated respectively in the descending and uplink burst data of the different user terminals that transmits in this frame, and the initial access subchannel in the sub-frame of uplink is the Random Access Channel of reserving for terminal.The OFDMA system is by being each sign resources and sub channel resource that the user terminal definition time-frequency two dimension Resource Block distributes each user terminal to use that transfer of data is arranged in descending and up broadcast, each user terminal uses the subchannel transmission data of distributing in the symbol time that distributes.
Distribute in the indicating means in existing resources, comprise two kinds of absolute position indicating means and relative position indicating means.Be that example describes the absolute position indicating means to send downlink data below:
In the downlink data interval, this T/F two dimension Resource Block can be setovered by symbol, subchannel biasing, symbolic number and four parameters of number of subchannels define, and in downlink broadcast message informing user terminal.Shown in the downlink burst data bag 3 among Fig. 1, the OFDMA system is that notation index is from k+5 to k+15 for the T/F two dimension Resource Block of this allocation of packets, the Resource Block of sub-channel index from s to s+4, this Resource Block can be by symbol biasing 5, symbolic number 11, subchannel biasing 0, number of subchannels 5 these four parameter-definitions in downlink broadcast message.Through after the above-mentioned resource allocation, the user terminal that sends downlink burst data bag 3 will use subchannel s to transmit this downlink burst data bag 3 to subchannel s+4 at k+5 in the symbol time of k+15.User terminal then according to four parameter-definitions in the downlink broadcast message distribute to its other resources assignment information, in corresponding symbol time, use corresponding subchannel downlink data receiving.
Be that example describes the relative position indicating means to send upstream data below:
In the upstream data interval, T/F two dimension least resource unit can be according to symbol biasing and the unified numbering of subchannel biasing, least resource unit as 17 correspondences that subchannel biasing 0 and OFDMA symbol are setovered is numbered 0, then by laterally subchannel being setovered 0, the least resource unit of OFDMA symbol biasing 18～28 is numbered 1～11, subchannel biasing 1 corresponding each least resource unit's number consecutively is 12～23, by that analogy.Then in the relative position indicating means: the distribution of first ascending resource piece then can distribute by Base Serial Number and persistence length, the end point of the above Resource Block of each Resource Block is a starting point simultaneously, the resource allocation of whole data interval just only need know that the Base Serial Number that begins most and the persistence length of each burst packet get final product, and in up broadcast informing user terminal.Starting point as uplink burst data bag 1 correspondence among Fig. 1 is subchannel biasing 0 and OFDMA symbol biasing 17, persistence length is 34, then its corresponding end point is subchannel biasing 3, symbol biasing 26, the user terminal that sends uplink burst data bag 1 are just being known according to up broadcast and sending upstream data in the subchannel of this Resource Block correspondence and symbol times.The starting point of uplink burst data bag 2 correspondences is the end point of uplink burst data bag 1 simultaneously.User terminal then according to four parameter-definitions in the downlink broadcast message distribute to its other resources assignment information, in corresponding symbol time, use corresponding subchannel downlink data receiving.
From top narration as can be seen, the frame structure of this kind air interface all is included as each user terminal deallocated resources assignment information that transfer of data is arranged in the broadcast of each frame, can be for the data allocations that same user terminal transmits in the different pieces of information frame different sub channel resource and OFDMA sign resources.It is flexible to have frame structure, the characteristics of the every frame update of resource allocation.
But, though data service has sudden strong feature, but time span with respect to the every frame of air interface, it is longer that partial data business and speech business still have the duration, the feature that speed is more constant, this moment, the interface-free resources of this partial service can keep the long period constant, and the time of the frame that continues also can be longer.Then obviously be waste to broadcast if all redistribute resource for this type of business in the broadcast of every frame this moment.
Along with the bandwidth of wireless communication system is increasing, thereby required bit figure places such as the descriptor subchannel of resource units biasing and subsymbol biasing can get more and more, such as promptly distinguishing designated symbol biasing, subchannel biasing, symbolic number and number of subchannels with 8 bit among the IEEE802.16e.The number of users that also can cause supporting simultaneously in same frame with the increase of Time Bandwidth may be very many, therefore this broadcast that the every frame of every user is all indicated is owing to contain a large amount of resource allocation informations, even can occupy more than 10% of frame resource, this ratio is obviously too big.
In sum, the frame structure of this air interface has preferably for sudden stronger data service to be supported, but frame structure is very not efficient too flexibly, limited empty resource might be wasted on the contrary in the resource allocation and indication of repetition, has reduced the valid data throughput; Speed when data service is more constant simultaneously, the duration, the high efficiency of this kind frame structure was lower when longer.Therefore be necessary to provide a kind of to sudden strong and more constant, the long-term data service of speed can both flexible adaptation resource allocation indicating mode method, device and user terminal, it can improve effective utilization of interface-free resources, thereby promotes the valid data throughput.
Summary of the invention
The embodiment of the invention provides a kind of air-interface resource allocation indicating method, device and user terminal, in order to solve the problem that exists resource allocation information to take a large amount of interface-free resources in the prior art and caused reducing the valid data throughputs.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of air-interface resource allocation indicating method, may further comprise the steps:
Dividing into groups to interface-free resources in the base station, forms a plurality of interface-free resources groupings and to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information;
The base station is when terminal is initiated or receive current business, the pairing interface-free resources group character of notice terminal present type of service information, in this interface-free resources grouping is this terminal distribution interface-free resources, the second level resource allocation information of resource allocation result in terminal is indicated this group comprises the identification information that interface-free resources is divided into groups in the resource allocation information of the described second level.
The embodiment of the invention also provides a kind of interface-free resources to distribute indicating device, is positioned on the base station, and described device comprises grouping module, second level distribution module and sending module, wherein:
Described grouping module is divided into groups to interface-free resources, form a plurality of interface-free resources groupings, and with the grouping identification information notify described second level distribution module, and by described sending module to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information;
Described second level distribution module is the pairing interface-free resources group character of notice terminal present type of service information when terminal is initiated or accepted current business, in this interface-free resources grouping is this terminal distribution interface-free resources, by the second level resource allocation information of described sending module resource allocation result in terminal is indicated this group, comprise the identification information of interface-free resources grouping in the resource allocation information of the described second level.
The embodiment of the invention also provides a kind of user terminal, comprises receiver module and processing module, and described user terminal also comprises memory cell, wherein:
After described receiver module received the notice of base station, processing module parsed the identification information of the group after dividing into groups to interface-free resources in the base station of carrying in this notice and is saved in described memory cell;
After described receiver module receives Indication message, described processing module parses first order resource allocation information and/or second level resource allocation information, and described first order resource allocation information and/or second level resource allocation information be saved in described memory cell, all comprise the identification information of interface-free resources grouping in described first order resource allocation information and the second level resource allocation information.
Embodiment of the invention beneficial effect is as follows:
In embodiments of the present invention, divide into groups to interface-free resources in the base station, forms a plurality of interface-free resources groupings and to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information; The base station is when terminal is initiated or receive current business, the pairing interface-free resources group character of notice terminal present type of service information, in the grouping of this interface-free resources is this terminal distribution interface-free resources, and in terminal is indicated this group the second level resource allocation information of resource allocation result.Owing to adopt embodiment of the invention technical scheme, can broadcast first order resource allocation information and second level resource allocation information by every frame, therefore, can reduce the interface-free resources that resource allocation information takies.
Since the base station only in group business initial take place or when occurring changing or because other reasons has been redistributed the second level resource allocation information of just broadcasting this group during resource in organizing, therefore, can significantly reduce the amount of information of broadcast, thereby reduced the interface-free resources that resource allocation information takies, increased the throughput of valid data.
Description of drawings
Fig. 1 is the frame structure schematic diagram of the OFDMA system time division duplex of IEEE802.16 regulation;
Fig. 2 is an OFDMA frame structure schematic diagram in example of the present invention;
Fig. 3 is the flow chart of broadcasting first order resource allocation information in the embodiment of the invention;
The schematic diagram that Fig. 4 is numbered time domain and frequency domain resource separately for group in example of the present invention;
Fig. 5 comprises the process chart after the resource allocation information broadcast of the second level for terminal in the embodiment of the invention receives;
Fig. 6 is for being positioned at the device block diagram of the broadcast resource assignment information on the base station in the embodiment of the invention;
Fig. 7 is for being positioned at the concrete frame of the device of the broadcast resource assignment information on the base station in the embodiment of the invention
Fig. 8 is the block diagram of user terminal in the embodiment of the invention.
Embodiment
In the embodiment of the invention, the base station adopts the two-stage resource allocation indicating method to broadcasting for the interface-free resources of each traffic assignments, wherein:
Dividing into groups to interface-free resources in the base station, forms a plurality of interface-free resources groupings and to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information;
The base station is when terminal is initiated or receive current business, the pairing interface-free resources group character of notice terminal present type of service information, in the grouping of this interface-free resources is this terminal distribution interface-free resources, and in terminal is indicated this group the second level resource allocation information of resource allocation result.
Terminal knows that in conjunction with the first order resource allocation information and the second level resource allocation information of its acquisition the base station is the interface-free resources of its distribution, and utilizes this interface-free resources to send or the reception data.
Above-mentioned group of resource is meant whole interface-free resources that a grouping is occupied; Resource is meant the interface-free resources in the grouping in the group, and resource is a some or all of group of resource in the group.
Below in conjunction with drawings and Examples the specific embodiment of the present invention is further described.
In the present embodiment, because the base station is to terminal indexed resource assignment information the time, can adopt the mode of broadcasting, also can take the directly mode of indication, its purpose is to notify terminal with resource allocation information, and lie in which kind of mode resource allocation information is not indicated to terminal, has adopted common broadcast mode to be designated as example to terminal in following examples and has described, but those skilled in the art easily know, are not limited in the enforcement and adopt the mode of broadcasting to indicate.
In the enforcement, the base station adopts the two-stage resource allocation indicating method to broadcasting for the interface-free resources of each traffic assignments, is respectively the broadcasting of first order resource allocation information and the broadcasting of second level resource allocation information, wherein:
The broadcasting of first order resource allocation information:
Dividing into groups to interface-free resources and broadcast first order resource allocation information in the base station, comprises the identification information of each grouping and the group resource location indication information that this grouping comprises in this first order resource allocation information.Can divide into groups and/or the principle that interface-free resources is carried out five equilibrium is divided into groups in the base station according to type of service.That is: the base station is when dividing into groups to interface-free resources, can be the average interface-free resources of dividing of each group, also can divide arbitrarily interface-free resources the demand of interface-free resources and other needs according to the interface-free resources corresponding service type of dividing into groups, one or more groups interface-free resources can be distributed to a kind of type of service.
Because the grouping that interface-free resources is carried out is the coarse granule degree, promptly, the Resource Block that division obtains is all bigger, and the quantity of group is seldom with respect to the quantity of business, therefore, only need less bit figure place can describe clear each group and divide the Resource Block that obtains, the interface-free resources that makes first order resource allocation information to take is very little.OFDMA frame structure with an example of the present invention shown in Fig. 2 is an example, carrying only needs to describe descending group 1～4 Resource Block that occupies respectively in the downlink business group message of first order resource allocation information, and also only need to describe up group 1～4 Resource Block that occupies respectively in the uplink service group message, this example has adopted the absolute position indicating means when describing, describe by symbol biasing 2, symbolic number 8, subchannel biasing 0, number of subchannels 10 these four parameters for then descending group 2.Identical in this describing method and the prior art.
For first order resource allocation information, can adopt following several method to broadcast:
1, broadcasting first order resource allocation information after the grouping again;
Because the grouping that interface-free resources is carried out is the coarse granule degree, therefore, may there be the situation that the long period also do not divide into groups again, therefore, only, can reduce the resource allocation information amount that needs broadcasting broadcasting the first order resource allocation information that comprises this group result after the grouping again.
In order to improve user's correct probability that obtains this first order resource allocation information under situations such as bad channel, can broadcast this first order resource allocation information in the back continuous several times of dividing into groups again.
2, every frame broadcasting first order resource allocation information;
Because the interface-free resources that first order resource allocation information need take is very little, even every frame broadcasting can not take too much resource yet, and processing can consider whether interface-free resources has been carried out grouping again like this, has simplified the handling process of broadcasting first order resource allocation information.
3, periodic broadcast is broadcasted first order resource allocation information after redistributing the group resource;
This method is the mean method of above-mentioned two kinds of methods, only both can avoid under situations such as bad channel, can't correctly receiving the situation of this first order resource allocation information, can reduce the resource allocation information amount that needs broadcasting again the user that grouping back broadcasting first order resource allocation information again causes.
4, periodic broadcast first order resource allocation information.
Can not allow the user feel under the condition of obvious wait in the length in cycle, also can periodic broadcast first order resource allocation information, but corresponding, the broadcasting of second level resource allocation information also will adjust accordingly, and sees the description to the broadcasting of second level resource allocation information for details.
, 4 kind situation that method to first order resource allocation information broadcast above-mentioned 1,3 for adopting, each terminal need be preserved the first order resource allocation information of acquisition, specifically as shown in Figure 3, may further comprise the steps:
Step S101, divide into groups to interface-free resources according to type of service in the base station;
Step S102, base station broadcast first order resource allocation information;
Comprise the identification information of each grouping and the group resource location indication information that this grouping comprises in this first order resource allocation information.
Step S103 after terminal receives this broadcast, resolves and preserves this first order resource allocation information.
The broadcasting of second level resource allocation information:
In the present embodiment, traffic assignments to the interface-free resources piece describe together by first order resource allocation information and second level resource allocation information, in first order resource allocation information, identification information by each grouping has been described the group result of base station to interface-free resources with the group resource location indication information that this grouping comprises, promptly each organizes the Resource Block that can take respectively, the identification information of this terminal for the group of this traffic assignments notified in the base station when terminal is initiated or accepted business, in the present embodiment, this identification information remains unchanged the duration of business, and in the resource allocation information of the second level, the allocation result of resource in the group has then been described, therefore, in conjunction with group result, resource allocation result can make terminal know that the base station is the interface-free resources of its distribution in the identification information of group and the group.
In order to reduce the amount of information of second level resource allocation information, in the present embodiment, number separately time domain and frequency domain resource in each group the base station, organizes the time domain and the frequency domain resource of numbering separately and describe resource allocation result in each group of organizing according to each.Be that example describes still with above-mentioned example, Fig. 4 shows in the above-mentioned example resource description method in descending group 2 the group, as shown in the figure, taken the Resource Block of describing by symbol biasing 2, symbolic number 8, subchannel biasing 0, number of subchannels 10 for descending group 2, and in descending group 2, restarted description frequency domain and time domain, as seen, in frequency domain, adopt S '～S '+9 to describe, and in time domain, adopt k '～k '+7 to describe.For example, the interface-free resources of distributing to downlink burst data bag 6 is for from the resource units of time domain k ' and frequency domain S ' definition to time domain k '+6 with the resource units that defines of frequency domain S '+2, persistence length is 20, adopt the relative position indicating means, the interface-free resources that downlink burst data bag 6 takies is described with symbol biasing 0, subchannel biasing 0, length 20 these three parameters.After terminal obtains second level resource allocation information, in conjunction with first order resource allocation information know downlink burst data bag 6 actual allocated to interface-free resources be the resource units of the resource units of time domain k+2 and frequency domain S definition up to time domain k+8 and frequency domain S+3 definition.
Bandwidth at wireless communication system is increasing, thereby under the increasing situations of required bit figure places meeting such as biasing of the descriptor subchannel of resource units and subsymbol biasing, adopt the interior resource of aforesaid way description group can reduce the amount of information of second level resource allocation information greatly.And after terminal obtains second level resource allocation information, be known as the interface-free resources of its distribution in conjunction with first order resource allocation information.
Number of services in one of them interface-free resources grouping changes, promptly have professional initiate or accept business and the base station for this traffic assignments this group, the base station can be distributed again to resource in the group of this interface-free resources grouping, and broadcasting comprises the second level resource allocation information of redistributing the result.And one of them business in the grouping of one of them interface-free resources is when changing, and the base station also can be distributed again to resource in the group of this group, and broadcasting comprises the second level resource allocation information of resource allocation result in the group of this group.
When divide into groups again to interface-free resources in the base station, the group resource of each group changes, at this moment, the base station can be redistributed resource in the group of each group, but because the description of resource and Resource Block that this group takies are irrelevant in the group, if variation has taken place in the shared group resource of certain group, but the group resource size that takies remains unchanged, and then can resource in the group of this group do not redistributed.If resource in the group of this group is not redistributed, then final result has carried out once resettlement to this group, and terminal can be known its current interface-free resources that is assigned in conjunction with the second level resource allocation information of new first order resource allocation information and preservation.
Because in the present embodiment, divide into groups according to type of service in the base station, therefore, in certain some group, all business all are that professional longer duration and/or bandwidth demand are stable, each professional resource requirement may remain unchanged in a long time, for this type of group, only need be in its group business initial take place or when change occurring, broadcasting comprises that the second level resource allocation information of the allocation result that the base station is distributed again to resource in the group of this group gets final product, in order to improve user's correct probability that receives this second level resource allocation information under situations such as bad channel, can continuous several times broadcast this second level resource allocation information, but when in its group, not having the business initial generation or change occurring, do not need to broadcast second level resource allocation information, thereby in the most of the time that business continues, saved the shared resource of broadcast, improved effective utilization of interface-free resources.
Only need be in its group business initial take place or broadcast under the situation of second level resource allocation information when change occurring, terminal receives the processing that comprises after the resource allocation information broadcast of the second level as shown in Figure 5, may further comprise the steps:
Step S201, terminal parses is also preserved second level resource allocation information;
Step S202, terminal knows that in conjunction with first order resource allocation information and the local second level resource allocation information of preserving the base station is the interface-free resources of its distribution according to the identification information of the group of base station notice.
When adopting the method for above-mentioned the 1st, 3,4 kind of broadcasting first order resource allocation information, first order resource allocation information in this step is local the preservation, in the method that adopts above-mentioned the 2nd kind of broadcasting first order resource allocation information, when being the broadcasting of every frame, the first order resource allocation information in this step then is that this frame receives.
Terminal is utilized this interface-free resources to send or is received data after knowing that the base station is the interface-free resources of its distribution, comprises the broadcast of first order resource allocation information and/or second level resource allocation information up to receiving the next one.
Certainly, in certain some group, all business all are that the professional duration is short and/or bandwidth demand is unsettled, each professional resource requirement may change more fast, for this type of group, the base station can be distributed to the second level resource allocation information of this terminal to the terminal indication in one or more resource smallest allocation time quantums; Because when business initial generation or appearance change in its group, broadcast base station carries out the second level resource allocation information that the second level is distributed again to resource in the group of this group, but because each professional resource requirement may change frame by frame, therefore, for this type of group, also can broadcast its second level resource allocation information at every frame of smallest allocation time quantum.
Be used for the professional required total bit figure place of Resource Block in the group of location when adopting in the present embodiment two-stage resource allocation indicating method, bit figure place required in the time of should be with the available technology adopting one-time positioning is suitable, adopting 8 bit to describe resource information during with one-time positioning is example, in two-stage resource allocation indication, can adopt the 3bit position to describe first order resource allocation information so, adopt the 5bit position to describe second level resource allocation information.Like this, when all business all are when changing frame by frame, the total resource allocation information amount that adopts the required broadcasting of two-stage resource allocation indicating method also when adopting one-time positioning the resource allocation information amount of required broadcasting identical.And during the two-stage resource allocation indicating method in the employing present embodiment, in case there is the partial service duration longer, bandwidth demand is stable, then the group at this partial service place is broadcasted its second level resource allocation information when only business initial generation or appearance change in its group, need not broadcast each professional resource allocation information frame by frame, the resource allocation information amount of required broadcasting can reduce.
When the method for above-mentioned broadcasting first order resource allocation information is periodic broadcast, if grouping has again been carried out to interface-free resources in the base station, and resource in the group of certain group redistributed, before the new grouping situation of first order resource allocation information broadcasting, second level resource allocation information wouldn't be broadcasted in the base station so.When the base station is according to periodic broadcasting first order resource allocation information, broadcast new second level resource allocation information.
If the professional resource requirement in the grouping of one of them interface-free resources changes, when comprising situation such as newly-increased, modification, cancellation, the pairing resource allocation information of this business is indicated in the base station.When this business resource requirement did not change, the resource allocation information of this business correspondence need not indicated in the base station.
If the professional resource requirement in one of them interface-free resources grouping is no longer distributed to this business, when promptly resource was cancelled, the method for base station indexed resource assignment information was that original position is identical with final position, or is changed to a certain particular value.
In the present embodiment, no matter first order resource allocation information or second level resource allocation information, can adopt absolute position indicating means or relative position indicating means as required respectively, as long as in corresponding resource allocation information, identify the method for indicating position that is adopted, adopt which kind of method for indication information concrete in the broadcast, the present invention does not do qualification.
Certain business initial take place or its duration, the base station can will should certain interior resource block assignments of the affiliated group of business continue to occupy for this business, when Resources allocation continued to occupy for this business, the resource continuous information of occupying that need add this business in the resource allocation information of the second level of this group was also broadcasted.That is, when the base station continues Resource Block certain business in the setting-up time intercycle is distributed to this group in certain group to occupy, in the resource allocation information of the second level of this group, add the resource continuous holding time information and the cycle information of this business and inform terminal; And resource changes or this setting-up time then or before this business changes in the group of this group, omits this professional resource allocation information in the resource allocation information of the second level of this group.
Since this business continue to occupy this Resource Block during, when other business initial generation or appearance change in this group, the resource that this business is occupied is unaffected, therefore, resource changes or before this business changes in the group of this group, in the resource allocation information of the second level of this group, can omit this professional resource allocation information, thereby reduce the amount of information of second level resource allocation information further, save interface-free resources.Resource changes or this business when changing in the group of this group, adds the new resource allocation information of this business and get final product in the resource allocation information of the second level of this group.
Same, certain business initial take place or its duration, the base station can be distributed to this business with certain Resource Block in the group under should business and continue to occupy in setting-up time, when Resources allocation continues to occupy for this business, need in the resource allocation information of the second level of this group, add the resource continuous holding time information and the broadcasting of this business in setting-up time.Since this business continue to occupy this Resource Block during, when other business initial generation or appearance change in this group, the resource that this business is occupied is unaffected, therefore, change or this setting-up time then or before this business changes in the group resource of this group, in the resource allocation information of the second level of this group, can omit this professional resource allocation information, thereby reduce the amount of information of second level resource allocation information further, save interface-free resources.The group resource of this group change or this setting-up time then or this business when changing, in the resource allocation information of the second level of this group, add the new resource allocation information of this business and get final product.
When specific implementation, can be used to refer to this group and whether adopted resource continuous occupying or the resource continuous resource allocation indicating method that occupies certain hour by flag bit is set in corresponding up group of resource allocation table and/or descending group of resource allocation table.
In an example of the present invention shown in above-mentioned Fig. 2:
Downlink business group message and uplink service group message are carried respectively in the first order resource allocation information to the distribution indication information of downlink resource with to the distribution indication information of ascending resource; Each descending group of resource allocation table and up group of resource allocation table carry the distribution indication information of downlink resource in the group of this group in the resource allocation information of the second level respectively and to the distribution indication information of ascending resource.
Because the terminal that has is under battery saving mode or other situations, only read FIH (Frame IndicationHeader, frame Indication message head) and uplink service group message, downlink business group message, so just can not read up group of resource allocation table, descending group of resource allocation table, know its second level resource allocation information.Therefore, in the present embodiment, in group resource and/or group need be redistributed in the base station during resource, at the original position FIH of this frame the sign of resetting is set, make all read whole broadcasts of intact this frame of terminal meeting reader of this replacement flag bit, comprise uplink service group message, downlink business group message and up group of resource allocation table, descending group of resource allocation table, thereby correctly know the resource of distributing to terminal.
During except business initial generation or appearance change, resource in group resource and/or the group can also initiatively be redistributed under other situations in the base station, for example, when the fragment in group resource allocation or other reasons make total interface-free resources was too many, the base station can be redistributed resource in group resource and/or the group.
In existing uplink service group message and downlink business group message, write in the first order resource allocation information to the distribution indication information of downlink resource with to the distribution indication information of ascending resource, be used for describing grouping situation, be expressed as the Resource Block that each group is distributed with solid line divide resource piece among the figure interface-free resources.Uplink service group message and downlink business group message can adopt two kinds of methods of relative position and absolute position.As seen, after this frame has sent lead code and FIH, will send uplink service group message and downlink business group message, broadcasting first order resource allocation information.
Each descending group of resource allocation table and up group of resource allocation table carry the distribution indication information of downlink resource in the group of this group in the resource allocation information of the second level respectively and to the distribution indication information of ascending resource; The indefinite length of up group of resource allocation table and descending group of resource allocation table is used for describing resource allocation result in group of each group, is expressed as the Resource Block that the burst packet of different business is distributed with dotted line divide resource piece among the figure.Up group of resource allocation table and descending group of resource allocation table also can adopt two kinds of methods of relative position and absolute position.When not having the business initial generation or change occurring in the group of certain group, the resource of business keeps stablizing in the group, and the resource allocation information of then organizing in the resource allocation table can omit, and does not take interface-free resources and broadcasts.
In this example, descending and the up group resource allocation table that comprises second level resource allocation information is broadcasted in the original position that is the resource of each set of dispense, be for the ease of deepening understanding to second level resource allocation information, but, the position of group resource allocation table is not limited thereto, for example, also can the second level resource allocation information of all groups be broadcasted or the like immediately following after first order resource allocation information.
Only show broadcast message relevant and resource allocation conditions among Fig. 2 with resource allocation, in this OFDMA frame structure, should also comprise the information that other and resource allocation have nothing to do, as channel descriptor, Random Access Channel etc., because and the present invention is not closely related, here do not do description, but can infer thus, the OFDMA frame structure of embodiment of the invention reality may disagree with Fig. 2.
Be positioned at the device of the broadcast resource assignment information on the base station in the present embodiment, as shown in Figure 6, comprise grouping module 101, second level distribution module 102 and sending module 103, wherein:
Second level distribution module 102 is the pairing interface-free resources group character of notice terminal present type of service information when terminal is initiated or accepted current business, in this interface-free resources grouping is this terminal distribution interface-free resources, by the second level resource allocation information of sending module 103 resource allocation result in terminal is indicated this group.
Above-mentioned second level distribution module 102 as shown in Figure 7, can also comprise monitoring unit 104 and second level allocation units 105 in order to be implemented in terminal and to initiate or making corresponding processing when accepting business, wherein:
The number of services of monitoring unit 104 in finding one of them interface-free resources grouping changes, when perhaps one of them business changes, and notice second level allocation units 105;
Resource is distributed again in the group of 105 pairs of this interface-free resources groupings of second level allocation units, and comprises the second level resource allocation information of redistributing the result by sending module 103 to the terminal indication.
For resource in group resource and/or group when changing, can informing user terminal, the device of the broadcast resource assignment information in the present embodiment also comprises control module 106, wherein:
Again divide into groups and/or second level distribution module 102 when redistributing in the group of certain group resource notice control module 106 in 101 pairs of interface-free resources of grouping module;
Because user terminal will know that the base station is the interface-free resources of its traffic assignments according to the identification information of the group of allocation result and base station notice in the interface-free resources group result in the first order resource allocation information, the group in the resource allocation information of the second level, so user terminal in the present embodiment, as shown in Figure 8, comprise receiver module 201, processing module 202 and memory cell 203, wherein:
After receiver module 201 received the notice of base station, processing module 202 parsed the sign of the group of carrying in this notice and is saved in memory cell 203;
After receiver module 201 received notification message, processing module 202 parsed first order resource allocation information and/or second level resource allocation information, and first order resource allocation information and/or second level resource allocation information are saved in memory cell 203.
Again because the user terminal in the present embodiment should be able to be according to the replacement flag bit among the FIH in the OFDMA frame, judge whether to read whole broadcasts of this frame, thereby guarantee that the terminal under battery saving mode or other situations can correctly be known as the interface-free resources of its distribution.Therefore, the user terminal in the present embodiment also comprises judge module 204, is used to judge that receiver module 201 receives really allocation and whether is provided with the sign of resetting, if notification handler module 202 is obtained whole Indication messages; Otherwise do not process.
In the present embodiment, traffic assignments to interface-free resources describe together by first order resource allocation information and second level resource allocation information.In a variation of present embodiment, a part of interface-free resources is reserved in the base station, only the remainder interface-free resources is divided into groups, and describes this remainder interface-free resources that traffic assignments arrives together by first order resource allocation information and second level resource allocation information.For the interface-free resources of reserving, the base station can directly be distributed to some business as required, for example professional short and/or unsettled business of bandwidth demand of duration, and will distribute to these professional interface-free resources and broadcast by first order resource allocation information.This modification of the present invention is not broken away from the spirit and scope of the present invention, should be in protection range of the present invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1. an air-interface resource allocation indicating method is characterized in that, may further comprise the steps:
Dividing into groups to interface-free resources in the base station, forms a plurality of interface-free resources groupings, and to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information;
When the base station is initiated or is accepted current business in terminal, the pairing interface-free resources group character of notice terminal present type of service information, in this interface-free resources grouping is this terminal distribution interface-free resources, and in terminal is indicated this group the second level resource allocation information of resource allocation result, comprise the identification information of interface-free resources grouping in the resource allocation information of the described second level.
2. the method for claim 1 is characterized in that,
Resource is meant the interface-free resources in the grouping in described group;
Divide into groups according to type of service and/or the principle that interface-free resources is carried out five equilibrium divided into groups in described base station.
3. the method for claim 1 is characterized in that, first order resource allocation information is periodically indicated in the base station.
4. the method for claim 1 is characterized in that, the base station is indication first order resource allocation information after interface-free resources being divided into groups at every turn.
5. the method for claim 1 is characterized in that, terminal is preserved this first order resource allocation information and/or second level resource allocation information after obtaining the first order resource allocation information and/or second level resource allocation information of indication.
6. the method for claim 1, it is characterized in that, when interface-free resources grouping corresponding service type be a short and/or bandwidth demand of professional duration when unstable, the second level resource allocation information of distributing to this terminal in one or more resource smallest allocation time quantums is indicated in the base station to terminal.
7. the method for claim 1 is characterized in that, when the professional resource requirement in one of them interface-free resources grouping changed, the pairing resource allocation information of this business was indicated in the base station; When this business resource requirement did not change, the resource allocation information of this business correspondence was not indicated in the base station.
8. method as claimed in claim 7, it is characterized in that, when the professional resource requirement in one of them interface-free resources grouping was no longer distributed to this business, the method for base station indexed resource assignment information was that original position is identical with final position, or is changed to a certain particular value.
9. the method for claim 1, it is characterized in that, resource allocation result in employing absolute position indicating means or relative position indicating means are indicated in described first order resource allocation information and indicated described group in described packet positions and the second level resource allocation information.
10. the method for claim 1 is characterized in that, number separately time domain and frequency domain resource in each group the base station, organizes the time domain of independent numbering and the interface-free resources that frequency domain resource is described as traffic assignments according to each.
11. the method for claim 1 is characterized in that, when the base station continues the resource block assignments in certain group to occupy to certain business in this group, adds the resource continuous information and the indicating terminal of occupying of this business in the resource allocation information of the second level of this group; And
Resource changes or before this business changes, omits this professional resource allocation information in the resource allocation information of the second level of this group in the group of this group.
12. the method for claim 1, it is characterized in that, when the base station is distributed to the Resource Block in certain group certain business in this group and is continued to occupy in setting-up time, the resource continuous holding time information and the indicating terminal of this business of adding in the resource allocation information of the second level of this group; And
Resource changes or this setting-up time then or before this business changes in the group of this group, omits this professional resource allocation information in the resource allocation information of the second level of this group.
13. the method for claim 1, it is characterized in that, when the base station continues Resource Block certain business in the setting-up time intercycle is distributed to this group in certain group to occupy, in the resource allocation information of the second level of this group, add the resource continuous holding time information and the cycle information of this business and inform terminal; And
Resource changes or this setting-up time then or before this business changes in the group of this group, omits this professional resource allocation information in the resource allocation information of the second level of this group.
14. the method for claim 1 is characterized in that, in the base station interface-free resources is divided into groups again and/or when redistributing in the group of certain group resource, the sign of resetting is set in definite position;
Terminal determines that according to described replacement sign needs obtain whole Indication messages.
15. an interface-free resources is distributed indicating device, is positioned on the base station, it is characterized in that described device comprises grouping module, second level distribution module and sending module, wherein:
Described grouping module is divided into groups to interface-free resources, form a plurality of interface-free resources groupings, and with the grouping identification information notify described second level distribution module, and by described sending module to terminal indication first order resource allocation information, comprise the identification information of interface-free resources grouping in this first order resource allocation information;
Described second level distribution module is the pairing interface-free resources group character of notice terminal present type of service information when terminal is initiated or accepted current business, in this interface-free resources grouping is this terminal distribution interface-free resources, by the second level resource allocation information of described sending module resource allocation result in terminal is indicated this group, comprise the identification information of interface-free resources grouping in the resource allocation information of the described second level.
16. device as claimed in claim 15 is characterized in that, described second level distribution module comprises monitoring unit and second level allocation units, wherein:
The number of services of described monitoring unit in finding one of them interface-free resources grouping changes, and when perhaps one of them business changes, notifies described second level allocation units;
Described second level allocation units distribute again to resource in the group of this interface-free resources grouping, and comprise the second level resource allocation information of redistributing the result by described sending module to the terminal indication.
17. device as claimed in claim 15 is characterized in that, described device also comprises control module, wherein:
Interface-free resources is divided into groups again and/or described second level distribution module when redistributing in the group of certain group resource in described grouping module, notify described control module;
Described control module is provided with the sign of resetting in definite position.
18. a user terminal comprises receiver module and processing module, it is characterized in that, described user terminal also comprises memory cell, wherein:
After described receiver module received the notice of base station, processing module parsed the identification information of the group after dividing into groups to interface-free resources in the base station of carrying in this notice and is saved in described memory cell;
After described receiver module receives Indication message, described processing module parses first order resource allocation information and/or second level resource allocation information, and described first order resource allocation information and/or second level resource allocation information be saved in described memory cell, all comprise the identification information of interface-free resources grouping in described first order resource allocation information and the second level resource allocation information.
19. user terminal as claimed in claim 18, it is characterized in that described user terminal also comprises judge module, be used to judge whether described definite position that described receiver module receives is provided with the sign of resetting, if notify described processing module to obtain whole Indication messages; Otherwise do not process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007101456651A CN101159975B (en) | 2006-09-22 | 2007-09-10 | Air-interface resource allocation indicating method, device and subscriber terminal |
| PCT/CN2007/002789 WO2008043259A1 (en) | 2006-09-22 | 2007-09-21 | Method, device and user terminal of assigning and indicating the air interface resource |
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| CN200610127845 | 2006-09-22 | ||
| CN200610127845.2 | 2006-09-22 | ||
| CN2007101456651A CN101159975B (en) | 2006-09-22 | 2007-09-10 | Air-interface resource allocation indicating method, device and subscriber terminal |
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Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257451B (en) * | 2008-04-16 | 2011-04-20 | 中兴通讯股份有限公司 | Method for MAC layer to rank downlink data burst of WiMAX system |
| CN101772171B (en) | 2009-01-06 | 2015-07-22 | 中兴通讯股份有限公司 | Group resource allocation method |
| CN102547592B (en) * | 2012-01-06 | 2015-02-18 | 电信科学技术研究院 | Data transmission method and device |
| CN103906174B (en) * | 2012-12-26 | 2017-07-21 | 华为技术有限公司 | Method for discovering equipment and terminal |
| CN104185289A (en) * | 2013-05-23 | 2014-12-03 | 中兴通讯股份有限公司 | Base station and method of scheduling service by base station |
| CN104378829B (en) * | 2013-08-15 | 2019-01-11 | 上海诺基亚贝尔股份有限公司 | A kind of method and its equipment for implementing channel distribution and scheduling based on type of service |
| CN104754627A (en) * | 2013-12-30 | 2015-07-01 | 电信科学技术研究院 | Resource monitoring method, user equipment and network equipment |
| US10728743B2 (en) | 2016-01-19 | 2020-07-28 | Huawei Technologies Co., Ltd. | System and method of air interface capability exchange |
| CN107197528B (en) | 2016-03-14 | 2020-12-25 | 华为技术有限公司 | Method and device for scheduling and allocating resources |
| CN106485419B (en) * | 2016-10-18 | 2021-01-19 | 财付通支付科技有限公司 | Secondary resource management method and device |
| WO2018161351A1 (en) * | 2017-03-10 | 2018-09-13 | 南通朗恒通信技术有限公司 | Method and apparatus for user equipment and base station used for wireless communication |
| CN108738137B (en) * | 2017-04-14 | 2021-08-03 | 普天信息技术有限公司 | Processing method and device for sending PBCH |
| CN109392139B (en) | 2017-08-11 | 2020-04-14 | 维沃移动通信有限公司 | Resource position indication method, device and system for receiving broadcast message |
| CN114867116A (en) * | 2017-12-29 | 2022-08-05 | 华为技术有限公司 | Information indication method, terminal equipment and network equipment |
| CA3066690C (en) | 2018-01-12 | 2021-11-30 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Transmission configuration method and related product |
| CN110635882B (en) * | 2018-06-25 | 2020-10-02 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN116170774A (en) | 2018-11-12 | 2023-05-26 | 上海朗帛通信技术有限公司 | Method and apparatus in a node for wireless communication |
| CN109792320B (en) * | 2018-12-25 | 2023-12-12 | 北京小米移动软件有限公司 | Data transmission method and device |
| CN113301598B (en) * | 2021-05-24 | 2021-12-21 | 中国电信集团系统集成有限责任公司 | Resource management method for base station and core network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452843A (en) * | 2000-06-05 | 2003-10-29 | 连宇通信有限公司 | Method for air interface to support variable data rate |
| CN1662073A (en) * | 2004-02-28 | 2005-08-31 | 华为技术有限公司 | Method for controlling life cycle of aerial interface command in wireless communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI103850B (en) * | 1996-07-12 | 1999-09-30 | Nokia Mobile Phones Ltd | Automatic control of communication mode |
-
2007
- 2007-09-10 CN CN2007101456651A patent/CN101159975B/en active Active
- 2007-09-21 WO PCT/CN2007/002789 patent/WO2008043259A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452843A (en) * | 2000-06-05 | 2003-10-29 | 连宇通信有限公司 | Method for air interface to support variable data rate |
| CN1662073A (en) * | 2004-02-28 | 2005-08-31 | 华为技术有限公司 | Method for controlling life cycle of aerial interface command in wireless communication system |
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