CN101330484B - Method for distributing mixed resource base on OFDM system and denoting signaling of the system - Google Patents
Method for distributing mixed resource base on OFDM system and denoting signaling of the system Download PDFInfo
- Publication number
- CN101330484B CN101330484B CN2007101115163A CN200710111516A CN101330484B CN 101330484 B CN101330484 B CN 101330484B CN 2007101115163 A CN2007101115163 A CN 2007101115163A CN 200710111516 A CN200710111516 A CN 200710111516A CN 101330484 B CN101330484 B CN 101330484B
- Authority
- CN
- China
- Prior art keywords
- resource
- resource block
- user
- threshold value
- subcarrier
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a mixed resource assignment method based on an orthogonal frequency division multiplexing system, and a signaling expression method thereof. The mixed resource assignment method comprises the following steps: (1) all available sub-carriers are divided into N resource blocks; (2) a logical number is numbered for each resource block; (3), a threshold value for distinguishing the quantity of the resource blocks is set; (4) the quantity of the resource blocks allocated to the users and the threshold value are compared; when the quantity of the resource blocks allocated to the users is smaller than the threshold value, the resources are allocated to the users by adopting the resource group as the unit; the signaling expression way for resource assignment is expressed by using the binary numeral; when the quantity of the resource blocks allocated to the users is larger than the threshold value, the resources are allocated to each user by adopting the section as the unit; the occupied condition of each section of resources is expressed by using the binary number. According to the size of the scheduling quantity of the resource blocks, two resource assignment methods and the corresponding signaling expression methods are adopted, the flexible resource scheduling is supported with low signaling expenses, and the complexity is low.
Description
Technical field
The present invention relates to system of broadband wireless communication, relate more specifically to a kind of mixing resource allocation and signaling representing method thereof based on ofdm system.
Background technology
OFDM (Orthogonal Frequency Division Multiplexing OFDM) technology is one of main candidate scheme of following wireless communication technology.In frequency domain, given channel is divided into many orthogonal sub-carriers, difference modulation signal on each subcarrier, and each subcarrier parallel transmission.Like this, although the frequency response curve of wireless channel is a non-flat forms, has frequency selectivity, but each subcarrier is a relatively flat, what carry out on each subcarrier is narrow band transmission, and signal bandwidth is less than channel width, so the just interference between the erasure signal waveform greatly.Because each subcarrier is mutually orthogonal in ofdm system, and their frequency spectrum is overlapped, so not only reduced the phase mutual interference between subcarrier, and the while has been improved the availability of frequency spectrum again.OFDM utilizes inverse discrete fourier transform/discrete Fourier transform (DFT) (IDFT/DFT) to replace multi-carrier modulation and demodulation in addition, has reduced the complexity of Base-Band Processing.
In ofdm system, because resource occurs with time and frequency bidimensional, so resource allocation and method for expressing thereof become more complicated, especially bandwidth ratio when big, should consider the flexibility of resource allocation, consider requirements such as the simple and expense of method for expressing is little again.
Method commonly used at present is a definition basic Resource Block RB (Resource Block), is that unit carries out resource allocation then with RB.Descending employing provides starting point and the terminating point time-frequency position of determining each user shared resource of each user on time and frequency as Wimax (Worldwide Interoperability forMicrowave Access micro-wave access global inter communication), this method of salary distribution signaling consumption is big, and especially improper distribution is a plurality of discontinuous according to scheduling and the RB of appointment.In addition, can also use the method for bitmap (bitmap), promptly use 1 (or 0) to represent this RB of this CU (or not taking).Signaling representing method biggest advantage based on bitmap is to support scheduling of resource fully flexibly, but this method for expressing need all be set up corresponding bitmap for each user, when number of users is many, owing between each user's the bitmap very strong correlation is arranged, so the expense waste is more serious.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of mixing resource allocation and signaling representing method thereof based on ofdm system, supports scheduling of resource flexibly with low signaling consumption.
In order to address the above problem, the invention provides a kind of mixing resource allocation and signaling representing method thereof based on ofdm system, it is characterized in that, may further comprise the steps:
(1) all available subcarriers are divided into N Resource Block, N is the integer more than or equal to 1; Each Resource Block comprises M OFDM symbol, and M is the integer more than or equal to 1; Q in each an OFDM symbol subcarrier belongs to this Resource Block, and Q is the integer more than or equal to 1; Each Resource Block comprises identical OFDM symbol number, and the subcarrier number in each Resource Block in each OFDM symbol is identical;
(2) compile a logic number for each Resource Block;
(3) set the threshold value of distinguishing user resources number of blocks size;
(4) relatively distribute to user's Resource Block quantity and described threshold value;
When the Resource Block quantity of distributing to the user during less than described threshold value, all Resource Block are divided into P resource group, P is the integer more than or equal to 1; Comprise R Resource Block in each resource group, R is the integer more than or equal to 1; When R greater than 1 the time, the logic number of the Resource Block in each resource group is continuous; With the resource group is that unit gives the user with resource allocation; With the denoting signaling mode of binary number representation resource allocation, represent to give the number of Resource Block in each resource group of user respectively with binary number, represent the logic number of first Resource Block in each resource group respectively with binary number;
When the Resource Block quantity of distributing to the user during greater than described threshold value, the whole system frequency band is divided into the S section, and S is the integer more than or equal to 1, every section Resource Block that comprises equal number, the logic number of the Resource Block in each section is continuous, is that unit gives each user with resource allocation with the section; With the denoting signaling mode of binary number representation resource allocation, with the situation that takies of every section resource of binary number representation.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention, wherein, in step (1), the subcarrier that belongs in the same OFDM symbol in the same Resource Block is continuous physically.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention, wherein, in step (1), the subcarrier that belongs in the same OFDM symbol in the same Resource Block is discontinuous physically.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention wherein, in step (1), belong to subcarrier in the different orthogonal frequency division multiplexing symbol in the same Resource Block in identical position.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention wherein, in step (1), belong to subcarrier in the different orthogonal frequency division multiplexing symbol in the same Resource Block in different positions.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention, wherein, in step (4), when the Resource Block quantity of distributing to the user during less than described threshold value, the quantity of the resource group that each user obtains is one or more.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention, wherein, the number of the Resource Block that comprises in a plurality of resource groups that each user obtains is identical or different.
Mixing resource allocation and signaling representing method thereof based on ofdm system of the present invention, wherein, in step (4), when the Resource Block quantity of distributing to the user during greater than described threshold value, the hop count amount that each user obtains is one or more.
Adopt method of the present invention, according to the size of resource block scheduling quantity, adopt two kinds of resource allocation methods and corresponding signaling representing method respectively, support scheduling of resource flexibly with low signaling consumption, complexity is low.
Description of drawings
Fig. 1 is a kind of concrete implementation and operation flow chart of the method for the invention;
Fig. 2 is the schematic diagram of the method for the invention according to the concrete enforcement Resource Block of the embodiment of the invention;
Fig. 3 is the another kind of concrete schematic diagram of implementing the resource group of the method for the invention;
Fig. 4 be when the Resources allocation number of blocks is less than threshold value under the another kind of concrete 20MHz of the LTE system bandwidth of implementing to adopt of the method for the invention the control signaling and the schematic diagram of branch resource correspondence;
Fig. 5 be when the Resources allocation number of blocks is greater than threshold value under the another kind of concrete 20MHz of the LTE system bandwidth of implementing to adopt of the method for the invention the control signaling and the schematic diagram of branch resource correspondence.
Embodiment
The present invention is in order to solve the drawback that conventional solution exists, further set forth a kind of mixing resource allocation and signaling representing method thereof of the present invention by following examples based on ofdm system, below embodiment is described in detail, but not as a limitation of the invention.
Fig. 1 is a kind of concrete implementation and operation flow chart of the method for the invention.A kind of concrete enforcement of the method for the invention may further comprise the steps:
When the Resource Block quantity of distributing to the user during less than described threshold value, all Resource Block are divided into P resource group (RG:Resource Group), P is the integer more than or equal to 1; Comprise R Resource Block in each resource group, R is the integer more than or equal to 1; The RB that contains identical or different numbers in each resource group, if contain a plurality of RB in this resource group, the logic number of the Resource Block in each resource group is continuous; With the resource group is that unit gives the user with resource allocation, and each user can obtain one or more RG, and the quantity of RG can be fixed also and can not fixed; With the denoting signaling mode of binary number representation resource allocation, represent to give the number of Resource Block in each resource group of user respectively with binary number, represent the logic number of first Resource Block in each resource group respectively with binary number;
When the Resource Block quantity of distributing to the user during greater than described threshold value, the whole system frequency band is divided into the S section, S is the integer more than or equal to 1, every section Resource Block that comprises equal number, the logic number of the Resource Block in each section is continuous, with the section is that unit gives each user with resource allocation, and each user can obtain one or more sections; With the denoting signaling mode of binary number representation resource allocation, with the situation that takies of every section resource of binary number representation.
According to another kind of embodiment, FDD (Frequency Division Duplex Frequency Division Duplexing (FDD)) system with 3GPP (third generation partner program) LTE (Long Term Evolution Long Term Evolution) is an example, bandwidth is 20MHz, then number of usable subcarriers is 1200, contains 14 continuous OFDM symbols in the subframe.With continuous 12 subcarriers, Resource Block RB of continuous 14 OFDM symbolic representations then contains 100 RB, as shown in Figure 2 in a subframe in the present embodiment.
Setting the threshold k of distinguishing user resources number of blocks size is 9.
When base station assigns is given 4 Resource Block of certain user, the user resources number of blocks is less than preset threshold K, the base station is that unit gives user resources with RG, in the present embodiment among the RG number of RB only can be 1,2 and 3, as shown in Figure 3, then each RG can represent with 9 bits, the number of wherein representing RB among the RG with 2 bits, represent the logic number of first RB among the RG with 7 bits, in addition, also need use the method for 1bit binary number representation resource allocation methods for grouping.Suppose that the base station gives two RG of certain user, in first RG, represent that with 01 the number of RB among the RG is 1, represent that with 0001001 the logic number of first RB among first RG is 9, in second RG, represent that with 11 the number of RB among the RG is 3, represent that with 0111001 the logic number of first RB among second RG is 57, the RB that this moment, this user was given in the base station be exactly logical number be 9,57,58 and 59 RB, be used to indicate the signaling consumption of branch resource be 18 bits, as shown in Figure 4.
When base station assigns was given 12 Resource Block of certain user, the user resources number of blocks was greater than preset threshold K, and the base station is that unit gives user resources with the section, and needing to use 1bit binary number representation resource allocation methods is 4 bitmap method as granularity.Present embodiment is divided into 25 sections with whole bandwidth, and every section contains 4 continuous RB, and corresponding denoting signaling needs the binary number of 25bits, each (bit) represented the occupation condition of correspondent section, given the user with the resource allocation of the corresponding section of " 1 " expression, is not assigned to this user with the corresponding section of " 0 " expression resource, suppose the base station with the 1st section, this user is given in the resource allocation of the 10th section and the 19th section, the RB that the user got be exactly logical number be 1,2,3,4,41,42,43,44,73,74,75,76,97,98,99 and 100 RB, be used to indicate the signaling consumption of branch resource be 26bits, as shown in Figure 5.
Compared with prior art, under the same conditions, the described method of the embodiment of the invention has that signaling consumption is little, and complexity is low, supports higher advantages such as scheduling of resource flexibility.
The present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. mixing resource allocation and signaling representing method thereof based on an ofdm system is characterized in that, may further comprise the steps:
(1) all available subcarriers are divided into N Resource Block, N is the integer more than or equal to 1; Each Resource Block comprises M OFDM symbol, and M is the integer more than or equal to 1; Q in each an OFDM symbol subcarrier belongs to this Resource Block, and Q is the integer more than or equal to 1; Each Resource Block comprises identical OFDM symbol number, and the subcarrier number in each Resource Block in each OFDM symbol is identical;
(2) compile a logic number for each Resource Block;
(3) set the threshold value of distinguishing user resources number of blocks size;
(4) relatively distribute to user's Resource Block quantity and described threshold value;
When the Resource Block quantity of distributing to the user during less than described threshold value, all Resource Block are divided into P resource group, P is the integer more than or equal to 1; Comprise R Resource Block in each resource group, R is the integer more than or equal to 1; When R greater than 1 the time, the logic number of the Resource Block in each resource group is continuous; With the resource group is that unit gives the user with resource allocation; With the denoting signaling mode of binary number representation resource allocation, represent to give the number of Resource Block in each resource group of user respectively with binary number, represent the logic number of first Resource Block in each resource group respectively with binary number;
When the Resource Block quantity of distributing to the user during greater than described threshold value, the whole system frequency band is divided into the S section, and S is the integer more than or equal to 1, every section Resource Block that comprises equal number, the logic number of the Resource Block in each section is continuous, is that unit gives each user with resource allocation with the section; With the denoting signaling mode of binary number representation resource allocation, with the situation that takies of every section resource of binary number representation.
2. the method for claim 1 is characterized in that, in step (1), the subcarrier that belongs in the same OFDM symbol in the same Resource Block is continuous physically.
3. the method for claim 1 is characterized in that, in step (1), the subcarrier that belongs in the same OFDM symbol in the same Resource Block is discontinuous physically.
4. the method for claim 1 is characterized in that, in step (1), belongs to subcarrier in the different orthogonal frequency division multiplexing symbol in the same Resource Block in identical position.
5. the method for claim 1 is characterized in that, in step (1), belongs to subcarrier in the different orthogonal frequency division multiplexing symbol in the same Resource Block in different positions.
6. the method for claim 1 is characterized in that, in step (4), when the Resource Block quantity of distributing to the user during less than described threshold value, the quantity of the resource group that each user obtains is one or more.
7. method as claimed in claim 6 is characterized in that, the number of the Resource Block that comprises in a plurality of resource groups that each user obtains is identical or different.
8. the method for claim 1 is characterized in that, in step (4), when the Resource Block quantity of distributing to the user during greater than described threshold value, the hop count amount that each user obtains is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101115163A CN101330484B (en) | 2007-06-19 | 2007-06-19 | Method for distributing mixed resource base on OFDM system and denoting signaling of the system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101115163A CN101330484B (en) | 2007-06-19 | 2007-06-19 | Method for distributing mixed resource base on OFDM system and denoting signaling of the system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101330484A CN101330484A (en) | 2008-12-24 |
| CN101330484B true CN101330484B (en) | 2011-08-10 |
Family
ID=40206078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101115163A Expired - Fee Related CN101330484B (en) | 2007-06-19 | 2007-06-19 | Method for distributing mixed resource base on OFDM system and denoting signaling of the system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101330484B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104486054A (en) * | 2009-03-17 | 2015-04-01 | 三菱电机株式会社 | Communication system, communication apparatus, and frequency allocation method |
| CN102769918B (en) * | 2011-05-05 | 2017-04-05 | 中兴通讯股份有限公司 | A kind of distribution method and device of upstream discontinuous Resource Block |
-
2007
- 2007-06-19 CN CN2007101115163A patent/CN101330484B/en not_active Expired - Fee Related
Non-Patent Citations (8)
| Title |
|---|
| 3GPP.3rd Generation Partnership Project * |
| Ericsson.Signaling of resource assignment.《3GPP TSG-RAN WG1 #49 R1-072471》.2007, * |
| Mitsubishi Electric.Scheduling Policy and Signaling Way on DL Resource Allocation.《3GPP TSG RAN WG1 #49 R1-072060》.2007, * |
| NEC Group.DL Unicast Resource Allocation Signalling.《3GPP TSG-RAN WG1 #49 R1-072119》.2007, * |
| Nokia, Nokia Siemens Networks.Signalling of PRB allocations for LTE downlink.《3GPP TSG-RAN WG1 #49 R1-072303》.2007, * |
| Physical Layer Aspects for Evolved UTRA.《3GPP TR 25.814 v1.2.2》.2006, * |
| Samsung.Resource Indication Scheme for Downlink Packet Scheduling.《3GPP TSG RAN WG1 #49 R1-072219》.2007, * |
| Technical Specification Group Radio Access Network * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101330484A (en) | 2008-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101399800A (en) | Resource distribution information representing method based on OFDM system | |
| JP5312464B2 (en) | Basic signal allocation unit setting method and signal transmission method using the same | |
| CN102833818B (en) | Physical downlink control channel mapping method and transmitting-receiving apparatus | |
| KR101304114B1 (en) | Ｒｅｓｏｕｒｃｅ ｍａｐｐｉｎｇ ｍｅｔｈｏｄ ｏｆ ｃｏｎｔｒｏｌ ｃｈａｎｎｅｌｓ | |
| CN101102142B (en) | A distributed transmission resource mapping method based on OFDM system | |
| KR20190029648A (en) | Method and apparatus for transmitting data in next generation cellular | |
| CN102014444B (en) | Method and device for distributing downstream resources and receiving downstream data | |
| CN101146317A (en) | Resource allocation and control signaling transmission method | |
| CN102484874A (en) | Methods and systems for csi-rs resource allocation in lte-advance systems | |
| CN110460415A (en) | Data transmission method, device and storage medium | |
| CN110769508B (en) | Signal transmission method, device, terminal equipment, network equipment and system | |
| CN101801093A (en) | Indicating method, device and system for resource distribution mode | |
| CN108401292B (en) | Control information transmission method, control information receiving device, base station and terminal | |
| EP2355607B1 (en) | Radio resource mapping method | |
| CN108540985A (en) | A kind of method that PDSCH is shared with PDCCH resource in NR systems | |
| CN109906645A (en) | The transmission method and device of uplink signal | |
| CN112204911A (en) | Digital scheme options for new radios | |
| CN109391417B (en) | Method, device and system for transmitting downlink control information | |
| CN101400065A (en) | Signaling representing method for frequency-hopping resource | |
| CN101102140A (en) | Distributed resource mapping method | |
| CN101330484B (en) | Method for distributing mixed resource base on OFDM system and denoting signaling of the system | |
| CN102970709A (en) | Method and device for determining size and number of resource block group (RBG) after fragmentation carrier configuration | |
| CN110190943A (en) | A kind of resource allocation method and device of down control channel | |
| US20120263132A1 (en) | Method for encoding resource indexes in wireless communication system, and base station | |
| CN100563137C (en) | A kind of method that in orthogonal frequency division multiple access system, realizes fast frequency hopping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20200619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |