CN101207469A - Method and apparatus for packet processing, information interactive method and frame constitution apparatus - Google Patents
Method and apparatus for packet processing, information interactive method and frame constitution apparatus Download PDFInfo
- Publication number
- CN101207469A CN101207469A CNA2007101938565A CN200710193856A CN101207469A CN 101207469 A CN101207469 A CN 101207469A CN A2007101938565 A CNA2007101938565 A CN A2007101938565A CN 200710193856 A CN200710193856 A CN 200710193856A CN 101207469 A CN101207469 A CN 101207469A
- Authority
- CN
- China
- Prior art keywords
- interface
- free resources
- grouping
- frequency domain
- resource allocation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a subgroup processing method and a device, an information alternating method and a frame constructing device. The information alternating method includes the steps that a base station alternates information with a terminal by a frame, the frame includes uplink operation group information, downlink operation group information, an uplink group resource allocation table, a downlink group resource allocation table, and a plurality of gap resource subgroups which are allocated according to the preset attribute and are distributed along the whole frequency domain. Using the embodiment of the invention can avoid the movements of the sub-channels caused by link adaptation among the gap resource subgroups, can overcome the defects that the broadcast information amount increases, the gap resource occupied by the resource allocation indication information increases, and the throughput of the effective data decreases due to the movements of sub-channels among the gap resource subgroups, and can fully ensure the advantageous effect that the two-class broadcast can produce.
Description
Technical field
The present invention relates to the wireless mobile communications field, especially a kind of group technology of interface-free resources and block processing device, information interacting method and frame-structuring device.
Background technology
Along with popularizing of portable terminal and enriching of data service, the user utilizes portable terminal to use the quantity and the frequency of data service to improve fast, and this just sharply increases the demand of communication bandwidth.Therefore, need rationally, effectively to utilize the frequency resource in the communication bandwidth, overcome the multipath fading under wireless channel simultaneously, reduce and disturb, make full use of the communication bandwidth resource.
OFDM (Orthogonal Frequency Division Multiplexing, hereinafter to be referred as: OFDM) be a kind of efficient parallel multi-carrier transmission technology, it becomes the resource division in the frequency domain subcarrier of a plurality of quadratures, each subcarrier is mapped as a subchannel, high-speed serial data that then will be to be transmitted decomposes and is modulated in a plurality of parallel orthogonal sub-channels, utilizes parallel modulation of each subcarrier and transmission data.The OFDM technology makes the symbol width of each subchannel expand greater than channel delay, and by adding cyclic extensions, the system that makes is not subjected to be disturbed by multipath the influence of the intersymbol interference that causes, and can effectively resist multipath effect.
OFDM inserts (Orthogonal Frequency Division Multiple Access, hereinafter to be referred as: OFDMA) system is divided into more than one sub carrier group with all subcarriers in the 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.During Resources allocation, distribute one or more subchannels to user terminal according to user's bandwidth demand.And the OFDMA system can be according to the situation of change of factors such as current channel circumstance, allocated bandwidth, and real time altering distributes the subchannel of each mobile phone users, to obtain the higher frequency spectrum utilance.
Because OFDM, OFDMA have the higher availability of frequency spectrum, on opposing multipath effect, frequency selective fading or narrow band interference, have remarkable advantages, therefore, OFDM and OFDMA will become two kinds of typical physical layer application modes among the IEEE 802.16.
The two-dimentional resource that the base station is made up of time-domain and frequency domain for the user terminal assigned radio resource, as shown in Figure 1, (TimeDivision Duplex is hereinafter to be referred as TDD) network mode frame structure schematic diagram for the OFDMA system time division duplex of IEEE802.16 regulation.Wherein, the corresponding OFDMA symbol of time-domain, among Fig. 1, k, k+1......k+26 represent each OFDMA notation index according to the time order and function sequential delivery; And the corresponding subchannel of frequency domain, s, s+1......s+L represent OFDMA system assignment each sub-channel index to the user, wherein, k, L are integer.Downlink burst data bag 1～5 among Fig. 1 and uplink burst data bag 1～5 are illustrated respectively in the descending and uplink burst data of the different user 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 sends the resource allocation indication information by broadcast to user terminal, notify each user that transfer of data is arranged for its distribution, by sign resources and sub channel resource that T/F two dimension Resource Block mode is represented, the user just can use the subchannel transmission data of distribution in the OFDMA symbol that is assigned with.
The base station can be adopted the absolute position indicating means by broadcast to the resource allocation indication information that user terminal sends.For example: in the downlink data interval, T/F two dimension Resource Block can be setovered by symbol, subchannel biasing, symbolic number and four parameters of number of subchannels are located.For example: among Fig. 1, the OFDMA system is that the T/F two dimension Resource Block that downlink burst data bag 3 distributes is that notation index is from k+5 to k+15, the Resource Block of sub-channel index from s to s+4, this Resource Block can setover 5 by symbol, symbolic number 11, subchannel biasing 0, number of subchannels 5 these four parameters are located.After the above-mentioned resource allocation, the user who sends downlink burst data bag 3 can 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.In addition, the base station also can adopt the relative position indication information to send the resource allocation indication information to user terminal.For example: 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, for example: subchannel biasing 0 and the OFDMA symbol 17 corresponding least resource units that setover are numbered 0, by time domain remaining least resource unit is numbered 1～11 then, setover four Resource Block number consecutivelies of 1 correspondence of subchannel are 12～23, by that analogy.Like this, can distribute first ascending resource piece by Base Serial Number and persistence length, the end point of the above Resource Block of each Resource Block is a starting point afterwards, therefore, the resource allocation in whole upstream data interval only need know that the starting point that begins most and the persistence length of each burst packet get final product.For example: the original position of uplink burst data bag 1 correspondence is subchannel biasing 0 and OFDMA symbol biasing 1, persistence length is 45, then its corresponding end point is subchannel biasing 3, symbol biasing 26, and the user can be at transmission uplink burst data bag 1 in the subchannel of this Resource Block correspondence and the time domain.And the original position of uplink burst data bag 2 correspondences is the end position of uplink burst data bag 1.
Utilize transmission frame number shown in Figure 1 according to the time, all send the resource allocation indication information to the data service distributes resource blocks of user applies and by broadcast to user terminal again in every frame, sudden stronger data service is provided has preferably supported.But, having of the data service of long, speed of duration at some uses than constant characteristic with respect to the every frame resource of air interface, its interface-free resources can keep the long period constant, and the time of the frame that continues also can be longer.And the resource that the base station is all distributed the time-frequency resources piece and distributed for this data service by the broadcast informing user terminal to this data service again at every frame, just increased the transmission of unnecessary operation and information, reduced the valid data throughput of base station, and increased network burden, reduced the effective rate of utilization of interface-free resources.
For addressing the above problem, in the prior art, the base station is according to type of service, for example: professional lasting duration, bandwidth demand etc., business is divided into groups, tackle interface-free resources mutually and divide into groups, form a plurality of interface-free resources groupings and broadcasting first order resource allocation indication information, comprise the identification information of each interface-free resources grouping and the group resource location indication information that the grouping of this interface-free resources comprises in this first order resource allocation indication information.As shown in Figure 2, be a frame structure schematic diagram after the interface-free resources grouping in the prior art OFDMA system.When the base station receiving terminal is professional, in the interface-free resources grouping of this business correspondence is this terminal distribution interface-free resources, and to terminal broadcasting first order resource allocation indication information and second level resource allocation indication information, wherein first order resource allocation indication information carries the pairing interface-free resources group character of terminal present type of service information, and second level resource allocation indication information is carried in this interface-free resources grouping and is the interface-free resources of this terminal distribution.In existing uplink service group information and downlink business group information, write in the first order resource allocation indication information to the distribution indication information of downlink resource with to the distribution indication information of ascending resource, be used for describing the grouping situation to interface-free resources, the Resource Block of dividing with solid line among Fig. 2 is expressed as the Resource Block that each group is distributed; The indefinite length of each up group of resource allocation table and descending group of resource allocation table, be used for describing resource allocation result in group of each group, carry respectively this group in the second level resource allocation indication information the interior downlink resource of group the distribution indication information and to the distribution indication information of ascending resource.During except business initial generation or appearance change, the base station can also initiatively be redistributed resource in group resource and/or the group in other cases, for example: when the fragment in group resource allocation or other reason make total interface-free resources was too many, the base station can be redistributed resource in group resource and/or the group.Because the grouping that interface-free resources is carried out is the coarse granule degree, that is: it is all bigger to divide the Resource Block obtain, and the quantity of group is seldom with respect to the quantity of business, therefore, only need less number of bits can describe clear each group and divide the Resource Block that obtains, though and the granularity of resource is thinner in the group, the unit resource piece is less, but because the sum of the resource in every group is few, also can describe by less number of bits and know its resource units, the interface-free resources that makes the resource allocation indication information to take reduces at double.Simultaneously, to after the interface-free resources grouping, may there be the situation that the long period also do not divide into groups again, therefore, needn't every frame broadcasting first order resource allocation indication information; Divide type of service because whether stablize according to professional duration length and/or bandwidth demand the base station, and it is divided into groups according to the type of business, and when only business initial generation or appearance change in group, the second level resource allocation indication information of just having broadcasted this group when perhaps having redistributed resource in the group because of other his reason, therefore, in organizing all is the group of the metastable business of resource requirement, do not broadcast resource allocation indication information in the second level when in the group resource does not change and organizes, not having the business initial generation or change occurring, therefore, significantly reduced the amount of information of broadcast, thereby reduced the interface-free resources that the resource allocation indication information takies, increased the throughput of valid data.
Link adaptation technique is a key character of OFDM and OFDMA system, helps improving the availability of frequency spectrum and message transmission rate, is a key property of ofdm system, and it can be applicable to time domain, frequency domain and spatial domain.As shown in Figure 3, be another frame structure schematic diagram after the interface-free resources grouping in the prior art OFDMA system, interface-free resources is divided into three up group and three descending group, and descending group 2 symbolic range is k+3～k+10, and the subchannel scope is s～s+11.Dash area wherein is the downlink resource piece that distributes for a user terminal in the group, this Resource Block can pass through following three region representation: S1 (symbolic range k+9～k+10, subchannel scope s+2～s+3), S2 (symbolic range k+4～k+10, subchannel scope s+4～s+5), S3 (symbolic range k+4～k+5, subchannel scope s+6～s+6).In communication process, link adaptation will inevitably can cause some subchannels to be moved in the subchannel territory, as shown in Figure 4, is the frame structure schematic diagram after S1 moves in the zone among Fig. 3.Wherein, S1 has moved new region S 4 (symbolic range k+9～k+10, subchannel scope s+14～s+15) by original S1 zone.Thus, variation has taken place in the interface-free resources grouping under the Resource Block of this user terminal, so just need broadcasting first order resource allocation indication information and second level resource allocation indication information, the amount of information of broadcast and the interface-free resources that the resource allocation indication information takies have been increased, reduced the valid data throughput, the beneficial effect that two-stage broadcasting can produce has weakened.
Summary of the invention
Embodiment of the invention technical problem to be solved is: avoid link adaptation to cause that subchannel moves between interface-free resources grouping, thereby overcome because subchannel is moved the minimizing of the throughput of the increase of the amount of information of the broadcast that causes and the interface-free resources that the resource allocation indication information takies and valid data between interface-free resources is divided into groups.
For solving the problems of the technologies described above, the packet processing method of a kind of interface-free resources of the embodiment of the invention comprises: interface-free resources is cut apart along time-domain and frequency domain, formed the interface-free resources grouping that distributes along whole frequency domain.
For solving the problems of the technologies described above, a kind of block processing device of the embodiment of the invention comprises grouping module, is used for interface-free resources is cut apart along time-domain and frequency domain, forms the interface-free resources grouping that distributes along whole frequency domain.
For solving the problems of the technologies described above, a kind of information interacting method of the embodiment of the invention comprises:
Carry out information interaction by frame between base station and the terminal, described frame comprises uplink service group information, downlink business group information, up group of resource allocation table, descending group of resource allocation table, and divides into groups according to a plurality of interface-free resources that distribute along whole frequency domain of predefined attribute assignment.
For solving the problems of the technologies described above, a kind of frame-structuring device of the embodiment of the invention, it comprises:
The group information storage module, be used to store to the distribution indication information of downlink resource and distribution indication information to ascending resource, described to downlink resource the distribution indication information and described distribution indication information to ascending resource in be carried in the first order resource allocation indication information;
The resource allocation table memory module, be used to store to the distribution indication information of downlink resource in organizing and distribution indication information to ascending resource, described distribution indication information and described distribution indication information to ascending resource to downlink resource in organizing is carried in the second level resource allocation indication information;
Grouping module, be connected with described group of information storage module, be used for according to predefined attribute, interface-free resources is cut apart along time-domain and frequency domain, formation is along evenly the distribute interface-free resources grouping of whole frequency domain, and with each uplink service group information and downlink business group information stores in described group of information storage module;
The resource adaptation module is connected with described group of information storage module and described resource allocation table memory module respectively, is used for being in the interface-free resources grouping this terminal coupling interface-free resources;
The frame constructing module, be connected with described group of information storage module and described resource allocation table memory module respectively, be used for according to described uplink service group information, downlink business group information, up group of resource allocation table, descending group of resource allocation table and interface-free resources constructed in groups frame;
Broadcast module is connected with described frame constructing module, be used for and terminal between carry out information interaction by frame, broadcasting first order resource allocation indication information and second level resource allocation indication information.
In an embodiment of the present invention, carry out in the frame of information interaction between interface-free resources base station and the terminal, will with predefined attribute, for example: type of service, the amount of capacity or the occupied stable state of resource of interface-free resources grouping, each corresponding interface-free resources is cut apart along time-domain and frequency domain, the interface-free resources grouping that formation distributes along whole frequency domain, like this, can adjust the number of interface-free resources grouping with practical requirement by the length of adjusting time-domain, avoided link adaptation to cause that subchannel moves between interface-free resources grouping, having overcome because subchannel is moved the amount of information of the broadcast that causes and interface-free resources that the resource allocation indication information takies between the interface-free resources grouping increases defective with the throughput minimizing of valid data, has guaranteed that fully two-stage broadcasts the beneficial effect that can produce.
Description of drawings
Fig. 1 is a frame structure schematic diagram of the OFDMA system TDD network mode of IEEE802.16 regulation in the prior art.
Fig. 2 is a frame structure schematic diagram after the interface-free resources packet transaction in the prior art OFDMA system.
Fig. 3 is another frame structure schematic diagram after the interface-free resources packet transaction in the prior art OFDMA system.
Fig. 4 is the frame structure schematic diagram after S1 moves in the zone among Fig. 3.
Fig. 5 is for realizing the frame structure schematic diagram of information interacting method embodiment of the present invention.
Fig. 6 is for realizing another frame structure schematic diagram of information interacting method embodiment of the present invention.
Fig. 7 is the curve chart of the signal interference ratio value of subchannel of the present invention.
Fig. 8 is for realizing another frame structure schematic diagram of information interacting method embodiment of the present invention based on Fig. 7.
Fig. 9 is the structural representation of block processing device embodiment of the present invention.
Figure 10 is the structural representation of frame-structuring device embodiment of the present invention.
Embodiment
Carry out information interaction by frame between base station and the terminal, cause that for fear of link adaptation subchannel moves between interface-free resources grouping, the packet processing method of a kind of interface-free resources that the embodiment of the invention provides, interface-free resources is cut apart along time-domain and frequency domain, the interface-free resources grouping is distributed along whole frequency domain, can evenly distribute along whole frequency domain, also can uneven distribution.A frame structure schematic diagram realizing the information interacting method between base station of the present invention and the terminal as shown in Figure 5, comprise uplink service group information, downlink business group information, up group of resource allocation table, descending group of resource allocation table, and with predefined attribute, for example: corresponding a plurality of interface-free resources groupings such as the amount of capacity of type of service, interface-free resources grouping or the occupied stable state of resource, each interface-free resources grouping distributes successively along time-domain, comprises all allowable resources in frequency domain.Because each interface-free resources is grouped in and comprises all allowable resources in the frequency domain, therefore, interface-free resources in identical time-domain all belongs to same interface-free resources grouping, like this, just avoided link adaptation to cause that subchannel moves between interface-free resources grouping, overcome that the amount of information of the broadcast that causes increases with interface-free resources that the resource allocation indication information takies and the defective of the throughput minimizing of valid data because subchannel is moved between the interface-free resources grouping, guaranteed that fully two-stage broadcasts the beneficial effect that can produce.
Carrying only needs to describe descending group 1～3 Resource Block that occupies respectively in the downlink business group information of first order resource allocation indication information, and also only need to describe up group 1～3 Resource Block that occupies respectively in the uplink service group information, this example has adopted the absolute position indicating means when describing, the grouping of ascending idle port resource can abbreviate as respectively with the grouping of downlink space interface resource: up group and descending group, the absolute location information of grouping of the ascending idle port resource of corresponding description or downlink space interface resource grouping K is in uplink service group information or the downlink business group information: the symbolic range in the time-domain is ks～ke, subchannel scope in the frequency domain is s～se, wherein, ks is the primary sign position of interface-free resources grouping K in time-domain, ke is the terminal position of interface-free resources grouping K in time-domain, the initial sub-channel index of s frequency domain, se is the terminator channel indexes of frequency domain.For example: the Resource Block of downlink space interface resource grouping 1 can be orientated as: symbolic range is k3～k6, and the subchannel scope is s～s+L.Identical in this describing method and the prior art.
In frame structure shown in Figure 5, interface-free resources can be cut apart along frequency domain according to discrete way, by a plurality of interface-free resources groupings are set in frequency domain, make the grouping of each interface-free resources along frequency domain evenly or uneven distribution according to discrete way, cover all frequency domains, this packet mode is more flexible to the distribution of interface-free resources, can more abundant, effectively utilize interface-free resources.
As Fig. 6, be another frame structure schematic diagram that is provided with according to discrete way, in this frame structure, the absolute location information of up group or descending group resource K is: symbolic range is ks～ke, the subchannel scope is s+Mk+N, symbolic range is s～se, terminal can with subchannel can only be confined in the Resource Block of this grouping; Wherein, ks is the primary sign position of up group of K, and ke is the terminal position of upstream packet K, and s is initial sub-channel index, k=0, and 1 ..., INT (NMAX%M), M is the distribution frequency of each interface-free resources grouping; NMAX is total subchannel number; N is the initial sub-channel index of grouping K.With descending group 2 be example, for the Resource Block of its distribution can be orientated as: symbolic range is k3～k7, the subchannel scope be s+Mk+1 (M=4, NMAX=L).Among Fig. 6, setting and Fig. 5 of up group of resource allocation table and up group of resource allocation table are similar, do not mark.
Adopt interface-free resources grouping shown in Figure 6 to cover all subchannel territories, compare, increased grouping number, simultaneously, guaranteed the even distribution of subchannel in the subchannel territory with interface-free resources packet mode shown in Figure 5 according to discrete way; And, because the regularity that the interface-free resources piece distributes also can reduce the complexity that base station and network side are located interface-free resources.
In the OFDMA system, the channel condition of different subchannels inevitably exists difference, robustness for subchannel in guaranteeing to divide into groups, interface-free resources can be divided into groups along frequency domain according to the pseudorandom rule, by a plurality of interface-free resources groupings are set in the subchannel territory, make each interface-free resources grouping pseudorandom regular distribution cover all frequency domains.For this reason, can preestablish the pseudorandom step-length of each subchannel, the pseudorandom step-length of definition should make channel condition in the interface-free resources grouping, and the density of the subchannel in zone is bigger preferably.The pseudorandom rule of supposing the subchannel distribution density is as follows: the interval corresponding pseudorandom step-length of T1～T2 is 5, what T2～T3 interval was corresponding is 4, what T3～T4 interval was corresponding is 3, what T4～T5 interval was corresponding is 2, T5～T6 interval corresponding be 1, Figure 7 shows that the subchannel (curve chart of the signal interference ratio value of s～s+L).Pseudorandom rule according to the subchannel distribution density of above-mentioned definition, another frame structure schematic diagram of the realization embodiment of the invention information interacting method that can construct, as shown in Figure 8, the setting of its up group of resource allocation table and up group of resource allocation table does not mark.In this frame structure, the absolute location information of up group or descending group resource is: symbolic range is ks～ke, the subchannel scope is POScurrent=POSprev+vINTERVAL, wherein, ks is the primary sign position of up group of K, and ke is the terminal position of upstream packet K, and POScurrent is current sub-channel index, POSprev is previous sub-channel index, and vINTERVAL is the pseudorandom step-length of current subchannel.
Undertaken before the information interaction by frame between base station and the terminal, the base station is in advance according to predefined attribute, for example: the amount of capacity or the occupied stable state of resource of type of service, interface-free resources grouping, interface-free resources is divided into groups along time-domain and frequency domain, form a plurality of along the equally distributed interface-free resources grouping of whole frequency domain.When the receiving terminal service request of base station, in the interface-free resources grouping of this business correspondence is this terminal distribution interface-free resources, by the pairing interface-free resources group character of first order resource allocation indication information broadcast announcement terminal present type of service information, and the second level resource allocation indication information of resource allocation result in this interface-free resources packet group is carried in broadcasting.Comprise the identification information of interface-free resources grouping and the group resource location indication information that the grouping of this interface-free resources comprises in the first order resource allocation indication information.Because the grouping that interface-free resources is carried out is the coarse granule degree, may there be the situation that the long period also do not divide into groups again, therefore, only, can reduce the resource allocation indication information amount that needs broadcasting broadcasting the first order resource allocation indication information that comprises this group result after the grouping again.Divide type of service because whether stablize according to professional duration length and/or bandwidth demand the base station, and it is divided into groups according to the type of business, and the second level resource allocation indication information of just having broadcasted this group when having redistributed resource in the group when only business initial generation or appearance change in group or because of other reasons, therefore, in organizing all is the group of the metastable business of resource requirement, do not broadcast resource allocation indication information in the second level when in the group resource does not change and organizes, not having the business initial generation or change occurring, can significantly reduce the amount of information of broadcast, thereby reduced the interface-free resources that the resource allocation indication information takies, increased the throughput of valid data.For the amount of capacity or the occupied stable state of resource of dividing into groups interface-free resources is divided into groups, also in like manner according to interface-free resources.
After terminal obtains the first order resource allocation indication information and second level resource allocation indication information of broadcasting, according to this first order resource allocation indication information and second level resource allocation indication information transceive data, comprise the broadcast of first order resource allocation indication information and/or second level resource allocation indication information up to receiving the next one.
When link adaptation technique makes that terminal is reselected subchannel, at Fig. 6 and frame shown in Figure 8, terminal can with subchannel can only be confined in the Resource Block of the interface-free resources of its distribution grouping, this subchannel of just having avoided terminal to use is moved between different grouping.
As shown in Figure 9, be positioned at the structural representation of the block processing device embodiment on the base station for the present invention, it comprises grouping module 3, be used for according to predefined attribute, for example: the amount of capacity of type of service, interface-free resources grouping or the occupied stable state of resource etc., interface-free resources is cut apart along time-domain and frequency domain, formation interface-free resources even along whole frequency domain or uneven distribution is divided into groups, the interface-free resources grouping that generates can comprise all Resources allocation in the frequency domain, also can be according to discrete way along frequency domain evenly or uneven distribution.In addition, block processing device can also comprise pseudorandom step-length memory module 7, is connected with grouping module 3, is used to store the pseudorandom step-length; At this moment, each interface-free resources grouping of grouping module 3 generations distributes along frequency domain according to the pseudorandom rule.
As shown in figure 10, for the present invention is positioned at the structural representation of the frame-structuring device embodiment on the base station, it comprises group information storage module 1, resource allocation table memory module 2, grouping module 3, resource adaptation module 4, frame constructing module 5 and broadcast module 6.Wherein:
Group information storage module 1 is used for storing that first order resource allocation indication information carries to the distribution indication information of downlink resource with to the distribution indication information of ascending resource;
Resource allocation table memory module 2 is used for storing that second level resource allocation indication information carries to the distribution indication information of downlink resource in the group of this group with to the distribution indication information of ascending resource;
Resource adaptation module 4 respectively with group information storage module 1 and resource allocation table memory module 2, be used for when the needs link adaptation, in this interface-free resources grouping, be that this terminal is mated interface-free resources;
Broadcast module 6 is connected with frame constructing module 5, be used for and terminal between carry out information interaction by frame, and broadcasting first order resource allocation indication information and the second level resource allocation indication information that carries resource allocation result in the interface-free resources packet group.
Wherein, resource adaptation module 4 comprises the monitoring unit 41 that is used for the monitor terminal channel quality, with dispensing unit 42, this dispensing unit 42 and monitoring unit 41, group information storage module 1 and resource allocation table memory module 2 connect, be used for decision-making and carry out the link adaptation function, and be used for according to the group resource information of group information storage module 1 storage and the distribution indication information of resource allocation table memory module 2 storages, type of service from terminal request, the amount of capacity of the interface-free resources grouping that maybe needs to take, or to selecting available subchannel in the grouping of the stable state correspondence of resource occupation, the subchannel that needs adapt to is adjusted, in the interface-free resources grouping, be this terminal coupling interface-free resources.
In the above-mentioned frame-structuring device, each interface-free resources grouping that grouping module 3 forms also can be according to discrete way along frequency domain evenly or uneven distribution.
In addition, frame-structuring device also comprises pseudorandom step-length memory module 7, is connected with grouping module 3, is used to store the pseudorandom step-length that sets in advance; At this moment, grouping module 3 specifically is used for according to predefined attribute, for example: the amount of capacity of type of service, interface-free resources grouping or the occupied stable state of resource etc., with the pseudorandom step-length, interface-free resources is cut apart along time-domain and frequency domain, made each interface-free resources grouping of cutting apart formation along frequency domain evenly or uneven distribution according to the pseudorandom rule.
The embodiment of the invention has avoided link adaptation to cause that subchannel moves between interface-free resources grouping, having overcome because subchannel is moved the amount of information of the broadcast that causes and interface-free resources that the resource allocation indication information takies between the interface-free resources grouping increases defective with the throughput minimizing of valid data, has guaranteed that fully two-stage broadcasts the beneficial effect that can produce.
It should be noted last that: above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restrictive sense.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.
Claims (22)
1. the packet processing method of an interface-free resources is characterized in that, comprising: interface-free resources is cut apart along time-domain and frequency domain, formed the interface-free resources grouping that distributes along whole frequency domain.
2. packet processing method according to claim 1 is characterized in that, each interface-free resources grouping comprises all allowable resources in the frequency domain.
3. packet processing method according to claim 2 is characterized in that, the absolute position of interface-free resources grouping K is: the symbolic range in the time-domain is ks～ke, and the subchannel scope in the frequency domain is s～se; Wherein, ks is the primary sign position of described interface-free resources grouping K in time-domain, and ke is the terminal position of described interface-free resources grouping K in time-domain, and s is the initial sub-channel index of frequency domain, and se is the terminator channel indexes of frequency domain.
4. packet processing method according to claim 1 is characterized in that, each interface-free resources grouping evenly distributes along frequency domain according to discrete way.
5. packet processing method according to claim 4 is characterized in that, the absolute position of interface-free resources grouping K is: the symbolic range in the time-domain is ks～ke, and the subchannel scope in the frequency domain is s+Mk+N; Wherein, ks is the primary sign position of described interface-free resources grouping K in time-domain, ke is the terminal position of described interface-free resources grouping K in time-domain, and s is the initial sub-channel index of frequency domain, k=0,1, ..., INT (NMAX%M), M is the distribution frequency of each interface-free resources grouping, NMAX is total subchannel number, and N is the initial sub-channel index of described interface-free resources grouping K in frequency domain.
6. packet processing method according to claim 1 is characterized in that, each interface-free resources grouping distributes along frequency domain according to the pseudorandom rule.
7. packet processing method according to claim 6 is characterized in that, the absolute position of interface-free resources grouping K is: the symbolic range in the time-domain is ks～ke, and the subchannel scope in the frequency domain is POSprev+vINTERVAL; Wherein, ks is the primary sign position of described interface-free resources grouping K in time-domain, ke is the terminal position of described interface-free resources grouping K in time-domain, POSprev is the previous sub-channel index of described interface-free resources grouping K in the frequency domain, and vINTERVAL is the pseudorandom step-length of current subchannel in the frequency domain.
8. packet processing method according to claim 7 is characterized in that, also comprises:
Preestablish the pseudorandom step-length of subchannel.
9. according to any described packet processing method of claim 1 to 8, it is characterized in that, also comprise: the capacity of each described interface-free resources grouping of the length adjustment by adjusting described time-domain.
10. the block processing device of an interface-free resources is characterized in that, comprises grouping module, is used for interface-free resources is cut apart along time-domain and frequency domain, forms the interface-free resources grouping that distributes along whole frequency domain.
11. block processing device according to claim 10 is characterized in that, the described interface-free resources grouping that described grouping module forms comprises all allowable resources in the frequency domain.
12. block processing device according to claim 10 is characterized in that, each interface-free resources grouping that described grouping module forms evenly distributes along frequency domain according to discrete way.
13. block processing device according to claim 10 is characterized in that, also comprises:
Pseudorandom step-length memory module is connected with described grouping module, is used to store the pseudorandom step-length;
Described grouping module is cut apart described interface-free resources according to described pseudorandom step-length along time-domain and frequency domain, each described interface-free resources grouping of cutting apart formation is distributed along frequency domain according to the pseudorandom rule.
14. an information interacting method is characterized in that, comprising:
Carry out information interaction by frame between base station and the terminal, described frame comprises uplink service group information, downlink business group information, up group of resource allocation table, descending group of resource allocation table, and divides into groups according to a plurality of interface-free resources that distribute along whole frequency domain of predefined attribute assignment.
15. information interacting method according to claim 14, it is characterized in that, also comprise: described base station is cut apart along time-domain and frequency domain interface-free resources according to described predefined attribute, forms a plurality of described interface-free resources groupings that distribute along whole frequency domain.
16., it is characterized in that described predefined attribute is the amount of capacity or the occupied stable state of resource of type of service, interface-free resources grouping according to claim 14 or 15 described information interacting methods.
17. according to claim 14 or 15 described information interacting methods, it is characterized in that, during service request that the base station receiving terminal sends, in the interface-free resources grouping of the type of service correspondence of described business is described traffic assignments interface-free resources, and broadcasting first order resource allocation indication information and second level resource allocation indication information, comprise the identification information of described interface-free resources grouping and the group resource location indication information that the grouping of this interface-free resources comprises in the described first order resource allocation indication information, described second level resource allocation indication information carries resource allocation result in the described interface-free resources packet group.
18. information interacting method according to claim 17, it is characterized in that, after terminal obtains the first order resource allocation indication information and second level resource allocation indication information of broadcasting, according to this first order resource allocation indication information and second level resource allocation indication information transceive data.
19. a frame-structuring device is characterized in that, comprising:
The group information storage module, be used to store to the distribution indication information of downlink resource and distribution indication information to ascending resource, described to downlink resource the distribution indication information and described distribution indication information to ascending resource in be carried in the first order resource allocation indication information;
The resource allocation table memory module, be used to store to the distribution indication information of downlink resource in organizing and distribution indication information to ascending resource, described distribution indication information and described distribution indication information to ascending resource to downlink resource in organizing is carried in the second level resource allocation indication information;
Grouping module, be connected with described group of information storage module, be used for according to predefined attribute, interface-free resources is cut apart along time-domain and frequency domain, formation is along evenly the distribute interface-free resources grouping of whole frequency domain, and with each uplink service group information and downlink business group information stores in described group of information storage module;
The resource adaptation module is connected with described group of information storage module and described resource allocation table memory module respectively, is used for being in the interface-free resources grouping this terminal coupling interface-free resources;
The frame constructing module, be connected with described group of information storage module and described resource allocation table memory module respectively, be used for according to described uplink service group information, downlink business group information, up group of resource allocation table, descending group of resource allocation table and interface-free resources constructed in groups frame;
Broadcast module is connected with described frame constructing module, be used for and terminal between carry out information interaction by frame, broadcasting first order resource allocation indication information and second level resource allocation indication information.
20. frame-structuring device according to claim 19 is characterized in that, described resource adaptation module comprises:
Monitoring unit is used for the monitor terminal channel quality;
Dispensing unit with described monitoring unit, the described connection, is used to carry out the link adaptation function respectively, is this terminal coupling interface-free resources in the interface-free resources grouping.
21., it is characterized in that each interface-free resources grouping that described grouping module forms evenly distributes along frequency domain according to discrete way according to claim 19 or 20 described frame-structuring devices.
22. according to claim 19 or 20 described frame-structuring devices, it is characterized in that, also comprise:
Pseudorandom step-length memory module is connected with described grouping module, is used to store the pseudorandom step-length;
Described grouping module is cut apart described interface-free resources according to predefined attribute and described pseudorandom step-length along time-domain and frequency domain, each interface-free resources grouping of cutting apart formation is distributed along frequency domain according to the pseudorandom rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101938565A CN101207469A (en) | 2006-12-20 | 2007-12-04 | Method and apparatus for packet processing, information interactive method and frame constitution apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610165457.3 | 2006-12-20 | ||
| CN200610165457 | 2006-12-20 | ||
| CNA2007101938565A CN101207469A (en) | 2006-12-20 | 2007-12-04 | Method and apparatus for packet processing, information interactive method and frame constitution apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101207469A true CN101207469A (en) | 2008-06-25 |
Family
ID=39567380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101938565A Pending CN101207469A (en) | 2006-12-20 | 2007-12-04 | Method and apparatus for packet processing, information interactive method and frame constitution apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101207469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784012B (en) * | 2009-01-15 | 2013-12-04 | 中兴通讯股份有限公司 | Multimedia broadcast/multicast service (MBMS) control signaling update indication method and device |
| CN104769879A (en) * | 2012-11-02 | 2015-07-08 | 华为技术有限公司 | Method in a network control node |
-
2007
- 2007-12-04 CN CNA2007101938565A patent/CN101207469A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784012B (en) * | 2009-01-15 | 2013-12-04 | 中兴通讯股份有限公司 | Multimedia broadcast/multicast service (MBMS) control signaling update indication method and device |
| CN104769879A (en) * | 2012-11-02 | 2015-07-08 | 华为技术有限公司 | Method in a network control node |
| US9986564B2 (en) | 2012-11-02 | 2018-05-29 | Huawei Technologies Co., Ltd. | Method in a network control node |
| CN104769879B (en) * | 2012-11-02 | 2018-11-20 | 华为技术有限公司 | Method in network control node |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11012202B2 (en) | System and method for WLAN OFDMA design of subcarrier groups and frame format | |
| CN108631987B (en) | Method and device for processing reference signal | |
| CN1930797B (en) | Method for allocating a subchannel in an orthogonal frequency division multiple access cellular communication system | |
| US5644573A (en) | Methods for coordinating upstream discrete multi-tone data transmissions | |
| CN102025461B (en) | Frequency domain scheduling method and device | |
| CN105846976A (en) | Multi-user multiple-input multiple-output transmission method and base station in wireless communication system | |
| CN101194450A (en) | Method for configuring and managing channels in a wireless communication system using amc channels and diversity channels, transmission/reception apparatus thereof, and system thereof | |
| WO2006121302A1 (en) | Method and apparatus for indexing physical channels in an ofdma system | |
| CN1972515A (en) | Method and apparatus for transmitting/receiving channel quality information (cqi) in a wireless communication system | |
| CN101816158A (en) | Method and apparatus for allocating resources of a control channel in a mobile communication system using orthogonal frequency division multiplexing | |
| CN106656446A (en) | Reference signal transmitting method and device and receiving method and device | |
| CN101132608A (en) | Device and method for indicating signal channel resource allocation information | |
| CN101155399A (en) | Device and method for control signal transmission in variable band width system | |
| CN101754232A (en) | Descending reference signaling transport method, base station, subscriber equipment and wireless communication system | |
| CN1956432B (en) | Method for distributing time frequency resource in dispatching and jump frequency multisystem | |
| CN106162906A (en) | Schedule information sending, receiving method and device | |
| CN1972266A (en) | Subcarrier allocation method in multicarrier wireless communication system | |
| CN102369685B (en) | Source distribution indication method, device and system | |
| CN104080093B (en) | A kind of frequency spectrum perception and dynamic channel binding method, apparatus and system | |
| CN101325432A (en) | Method for transmitting frequency-hopping signaling, frequency-hopping mode and method for collocating scheduling signaling | |
| CN105119851B (en) | Wireless LAN communication method and equipment | |
| CN102158253B (en) | Method for transmitting frequency hopping signaling and method for configuring frequency hopping mode and dispatching signaling | |
| CN101553032B (en) | Channel allocating method, device and base station sub-system | |
| CN101207469A (en) | Method and apparatus for packet processing, information interactive method and frame constitution apparatus | |
| CN102572844A (en) | Method and device for distributing cell resources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080625 |