CN101005341B - Data multiplexing method for orthogonal frequency division multipex communication system - Google Patents
Data multiplexing method for orthogonal frequency division multipex communication system Download PDFInfo
- Publication number
- CN101005341B CN101005341B CN2006100112445A CN200610011244A CN101005341B CN 101005341 B CN101005341 B CN 101005341B CN 2006100112445 A CN2006100112445 A CN 2006100112445A CN 200610011244 A CN200610011244 A CN 200610011244A CN 101005341 B CN101005341 B CN 101005341B
- Authority
- CN
- China
- Prior art keywords
- pattern
- sub
- discrete type
- subframe
- frame
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The method carries out multiplexing for user data by using distribution pattern in time domain, and frequency domain as basic assigning unit. The method includes steps: forming sub frame or frame including centralized distribution pattern and / or dispersion type distribution pattern; time division multiplexing the centralized distribution pattern and dispersion type distribution pattern inside sub frame or frame, or between sub frames or frames. The centralized distribution pattern and dispersion type distribution pattern are located multiple orthogonal frequency division multiplexing symbols in use for sending user data in the sub frame or the frame. Giving full play to own advantages of two distribution patterns to adapt to each channel environment, the invention possesses features of simple distribution mode, flexible control, reduced overhead of control signaling. Time division multiplexing plays diversity frequency and gain of multiple users furthest.
Description
Technical field
The present invention relates to digital communicating field, particularly relate to the data multiplexing method of OFDM (OFDM) communication system.
Background technology
For future communications, data service is more and more rich and varied, and the application scenarios of supporting is more and more, so the also raising thereupon of its demand, its high user data rate, and the requirement of high spectrum utilization is especially outstanding.
The OFDM technology is that it provides a kind of approach of high speed data transfers in conjunction with the two-dimentional multiplexing technique of time division multiplexing (TDM) with frequency division multiplex (FDM).Be converted to one group of low-speed parallel data flow transmitted by data flow with a high-speed transfer, system is reduced greatly to the susceptibility of multidiameter fading channel frequency selectivity, and the introducing of Cyclic Prefix has further strengthened the ability of the anti-intersymbol interference of system (ISI) again.In addition bandwidth availability ratio height, realize that characteristics such as simple make OFDM more and more wider in the application of wireless communication field, such as, based on the WiMAX system of orthogonal frequency division multiplexing multiple access (OFDMA), and the descending scheme of the Long Term Evolution of 3GPP (LTE) research etc. all is based on the OFDM technology.
For ofdm communication system, carry out rational data multiplex at its time domain and frequency domain the raising of link performance is had very important significance.When data multiplex, be basic allocation unit to distribute pattern.One is distributed pattern to be the data cell of being made up of the experimental process carrier wave of some symbols of time-domain and frequency domain.For fear of interference, in same cells or the same sector, each distributes the division of pattern mutually orthogonal, distributes the design of pattern will be easy to avoid interference between adjacent cell simultaneously, to improve power system capacity and coverage.In addition, distribute the size of pattern should satisfy certain data length requirement, take into full account frequency diversity and time diversity, consider to share the number of users of total bandwidth again.If adopt the optimized dispatching utilize link quality feedback to realize CU is distributed pattern, then also need to consider to distribute pattern suitable length on time domain and frequency domain.More than mutual restriction between these factors, need compromise suitably.
Is the WiMAX system of feature for maturation with the OFDMA technology, its data multiplex is flexible especially on time domain and frequency domain, this system is divided into a plurality of zones with a Frame, to realize multi-user diversity and frequency diversity respectively, and each regional variable range, its flexible design, the true thus expense that has increased control messages greatly decreases the available capacity of system.Therefore for an ofdm communication system, adopt a kind of suitable data multiplexing method, make it can adapt to various Radio Links, can avoid the expense of a large amount of control channels again, be very important to improve its available capacity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of salary distribution simple and can adapt to various Radio Links, can avoid the data multiplexing method in the ofdm communication system of a large amount of control channel expenses again.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of data multiplexing method of orthogonal FDM communication system, multiplexing at time domain and frequency domain to distribute pattern to be that basic allocation unit carries out data, wherein, comprising:
Formation comprises the centralised allocation pattern and/or discrete type distributes the subframe of pattern or the step of frame; And
Described centralised allocation pattern of time division multiplexing and discrete type distribute the step of pattern in subframe or frame and/or between subframe or frame;
Wherein, described centralised allocation pattern and discrete type distribute pattern to be arranged in a plurality of OFDM symbols that described subframe or frame are used to send user data;
Wherein, described centralised allocation pattern is a plurality of zones of forming at the subcarrier of frequency domain continuous distribution in described a plurality of OFDM symbols; Described discrete type distribution pattern is a plurality of zones of forming at the discontinuously arranged subcarrier of frequency domain in described a plurality of OFDM symbols;
Described centralised allocation pattern comprises a plurality of centralized sub-pattern; Described discrete type distributes pattern to comprise a plurality of discrete type sub-pattern; In described a plurality of centralized sub-pattern each is an OFDM symbol in time, accounts for a plurality of continuous sub-carriers on frequency domain; In described a plurality of discrete type sub-pattern each is a symbol in time, accounts for a plurality of discontinuous subcarriers on frequency domain;
The sub-carrier number that comprises in the described centralized sub-pattern is according to the length of minimum data unit and/or alleviate the feedback expense that metric data brought and determine, and the sub-carrier number of the described centralized sub-pattern of having determined remains unchanged; The sub-carrier number that comprises in the described discrete type sub-pattern determines according to the length that will satisfy, and the sub-carrier number of the described discrete type sub-pattern of having determined remains unchanged.
Described data multiplexing method wherein, is formed described discrete type and is distributed the selection of subcarrier of pattern or discrete type sub-pattern based on even distribution number, pseudo random number or based on the basic sequence of being derived by the RS sequence.
Described data multiplexing method wherein, further comprises the step of getting rid of the OFDM symbol that is used to insert pilot tone in described subframe or the frame.
Described data multiplexing method, wherein, when described centralised allocation pattern of time division multiplexing in subframe or frame and discrete type distribution pattern, the front or the back of the discrete type range of distribution of pattern distributed in the position of transmitting the centralised allocation zone of described centralised allocation pattern at the described discrete type of transmission; And the described front and back position of having determined remains unchanged in follow-up subframe is multiplexing.
Described data multiplexing method, wherein, a plurality of centralised allocation patterns or discrete type distribute pattern to be assigned to same user.
Described data multiplexing method, wherein, described each distributes the division of pattern mutually orthogonal.
Utilize method of the present invention in the data multiplex process, adopt in subframe or the frame and/or time division multiplexing centralised allocation pattern and discrete type distribution pattern between subframe or frame, can give full play to these two kinds and distribute pattern advantage separately, to be fit to various channel circumstances, the method of salary distribution is simple simultaneously, and control greatly reduces the expense of control signaling flexibly, while two kinds of methods of salary distribution are owing to the multiplexed form of the time-division of adopting, so can at utmost bring into play frequency diversity and multi-user's gain at frequency domain.If come the discrete formula to distribute pattern based on the RS sequence, then can also effectively reduce the interference of minizone.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as limitation of the present invention.
Description of drawings
Fig. 1 is the present invention's time-multiplexed schematic diagram in centralised allocation mode and the discrete type method of salary distribution subframe in the ofdm communication system of 5MHz bandwidth;
Fig. 2 is the present invention's a kind of time-multiplexed schematic diagram between centralised allocation mode and discrete type method of salary distribution subframe in the ofdm communication system of 5MHz bandwidth;
Fig. 3 is the present invention's another time-multiplexed schematic diagram between centralised allocation mode and discrete type method of salary distribution subframe in the ofdm communication system of 5MHz bandwidth.
Embodiment
Data multiplexing method provided by the invention is got rid of the OFDM symbol that is used to insert pilot tone when each frame or subframe send, two kinds of basic distribution patterns of definition in other are used to send several OFDM symbols of user data.Can adopt the centralised allocation mode in the subframe, also can adopt the discrete type method of salary distribution, can also both adopt the centralised allocation mode also to adopt the discrete type method of salary distribution, it is time-multiplexed relation that centralised allocation and discrete type distribute.Wherein, the discrete type sub-pattern comprises the discontinuous subcarrier of a plurality of frequency domains, and its sub-carrier number can be consistent with the number of centralized sub-pattern, also can be different.
The invention provides a kind of data multiplexing method of orthogonal FDM communication system, multiplexing at time domain and frequency domain to distribute pattern to be that basic allocation unit carries out user data, comprising:
Formation comprises the centralised allocation pattern and/or discrete type distributes the subframe of pattern or the step of frame; And
Described centralised allocation pattern of time division multiplexing and discrete type distribute the step of pattern in subframe or frame and/or between subframe or frame; Described centralised allocation pattern and discrete type distribute pattern to be arranged in a plurality of OFDM symbols that described subframe or frame are used to send user data; The centralised allocation pattern is a plurality of zones of forming at the subcarrier of frequency domain continuous distribution in described a plurality of OFDM symbols; Described discrete type distribution pattern is a plurality of zones of forming at the discontinuously arranged subcarrier of frequency domain in described a plurality of OFDM symbols.
For the subframe of regular length, get rid of the OFDM symbol be used to insert pilot tone, two kinds of basic distribution patterns of definition in other are used to send several OFDM symbols of user data, centralised allocation pattern and discrete type distribute pattern.The centralised allocation pattern is in several symbols several in zone that the subcarrier of frequency domain continuous distribution is formed.The symbol that the centralised allocation pattern occupies in time can continuously also can be discontinuous.The centralised allocation pattern measures feedback technique in conjunction with channel, can realize multi-user diversity, especially is fit to low speed, the low channel circumstance that postpones expansion; Discrete type distributes pattern, is several zones at the discontinuously arranged subcarrier composition of frequency domain in several symbols.Equally, discrete type distributes the symbol that pattern occupies in time can continuously also can be discontinuous.Discrete type distributes pattern to have frequency and time diversity effect preferably, especially is fit at a high speed the big channel circumstance that postpones expansion.
In order to represent conveniently, every kind is distributed pattern to represent that by sub-pattern separately each sub-pattern is a symbol in time, accounts for several continuous or discrete subcarriers on frequency domain, and corresponding respectively centralised allocation pattern and discrete type distribute pattern.
Centralized sub-pattern occupies several frequency domain continuous sub-carriers, and the sub-carrier number that comprises satisfies certain requirement, feeds back the expense that metric data was brought with the length that satisfies the minimum data unit with alleviating.In the present invention, the sub-carrier number that comprises in each centralized sub-pattern remains unchanged.Therefore a centralised allocation pattern is continuous in time or discontinuous by several, represents for several centralised allocation sub-pattern of same position on the frequency domain.
The discrete type sub-pattern comprises the discontinuous subcarrier of several frequency domains, its sub-carrier number can be consistent with the number of centralized sub-pattern, also can be different, as long as the sub-carrier number that comprises satisfies certain length requirement, but its number is in case determine that then the sub-carrier number that comprises in Zhi Hou the discrete type sub-pattern remains unchanged.In addition, the selection of subcarrier can be based on even distribution number, pseudo random number, also can be based on the basic sequence of being derived by the RS sequence.In order to help frequency diversity, discrete type distributes pattern continuous in time or discontinuous by several, and frequency domain is dispersed in the discrete sub-pattern of the diverse location in the whole bandwidth as far as possible and represents.
The mode of centralised allocation mode and discrete type method of salary distribution employing time-division is in a subframe or carry out multiplexing between subframe.Can farthest give full play to so separately multi-user gain and the advantage of frequency diversity.Both be adopt in the subframe multiplexing between multiplexing or subframe, can adjust according to the actual data transfer situation, promptly can adopt the centralised allocation mode in a subframe, also can adopt the discrete type method of salary distribution, can also both adopt the centralised allocation mode also to adopt the discrete type method of salary distribution, but both are time-multiplexed relations.
When centralised allocation mode and the discrete type method of salary distribution adopt in the subframe time division multiplexing, get rid of the OFDM symbol that is used to insert pilot tone, in being used to send the zone of several OFDM symbols of user data, other are divided into two parts on time, be centralised allocation zone and discrete type range of distribution, the centralised allocation zone adopts the centralised allocation pattern to carry out transfer of data; The discrete type range of distribution adopts discrete type to distribute pattern to carry out transfer of data.The position in centralised allocation zone can be before the discrete type range of distribution, also can after.But both front and back positions are in case determine, then after both in subframe when multiplexing, front and back position no longer changes.
No matter the centralised allocation pattern still is that discrete type distributes pattern, all can distribute pattern give same user in several centralised allocation patterns or discrete type, with the requirement of the transmission of satisfying user's high-speed data.
As from the foregoing, the inventive method, each distributes the division of pattern mutually orthogonal.
Please refer to the specific embodiment that Fig. 1 to Fig. 3 understands the inventive method.
Descending 5MHz bandwidth communication systems with the Long Term Evolution research of the 3GPP that adopts the OFDM technology is an example; the frame of 10ms is divided into the subframe of 20 0.5ms; each subframe comprises 7 OFDM symbols; system for the 5MHz bandwidth; each symbol contains 512 subcarriers; wherein 300 are used for transmitting data for useful subcarrier, and other are boundary belt and direct current subcarrier.System bandwidth can change.
Fig. 1 is a time-multiplexed specific embodiment in centralised allocation mode and the discrete type method of salary distribution subframe.In the subframe i of a 0.5ms, suppose first OFDM symbol, promptly symbol 0, be used for sending pilot tone and shared control information, all the other 6 symbols, promptly symbol 1～6 is used for sending user data, and the centralised allocation mode and the discrete type method of salary distribution adopt time-multiplexed mode in the subframe.At first symbol 1～6 is divided into two parts in time domain, the discrete range of distribution of range of distribution and subcarrier in the sub-carrier set.This embodiment is that two zones respectively account for 3 symbols, and symbol 1～3 is range of distribution in the sub-carrier set, and subcarrier 4～6 is the discrete range of distribution of subcarrier.
Corresponding to these two kinds of zones, we define two kinds of basic distribution patterns, and centralised allocation pattern and discrete type distribute pattern.For range of distribution in the sub-carrier set, the design of centralised allocation pattern helps obtaining multi-user diversity gain, and for the discrete range of distribution of subcarrier, discrete type distributes pattern then to be fit to obtain frequency diversity gain.In addition, each distributes pattern to comprise the experimental process pattern, and each symbol accounts for a sub-pattern.In this embodiment, because each range of distribution all comprises 3 symbols, so the centralised allocation pattern comprises 3 centralized sub-pattern, discrete type distributes pattern also to comprise 3 discrete type sub-pattern.
Each centralized sub-pattern contains 25 continuous sub-carriers, get the centralized sub-pattern of same sequence number at symbol 1～3 respectively and form a centralised allocation pattern, as, 3 centralized sub-pattern 0 in the symbol 1～3 are formed centralised allocation pattern 0, comprise 25 * 3 (75) individual subcarriers altogether, in this embodiment, comprise 12 such centralised allocation patterns 0～11 altogether, Fig. 1 has expressed centralised allocation pattern 0 with the pane of different filling modes, centralised allocation pattern 1 and centralised allocation pattern 11.
Each discrete type sub-pattern then contains subcarrier discrete on 25 frequencies, and the selection of subcarrier is based on the basic sequence of being derived by the RS sequence.Among this embodiment, this basic sequence is (9,1,3,4,10,7,0,8,6,5,11,2).At first 300 useful subcarriers are divided into 25 groups, group number is labeled as 0～24, every group comprises 12 continuous sub-carriers, be labeled as 0～11, in every group, select a sub carrier group to become a discrete type sub-pattern according to basic sequence, so both accomplish frequency diversity, helped avoiding the interference of adjacent cell based on the selection of RS sequence again.As, chooser carrier wave 9 in the group 0, chooser carrier wave 1 in the group 1 is so analogized, organize 11 chooser carrier waves 2, repeat this basic sequence afterwards, organize 12 chooser carrier waves 9, this analogizes for another example, organize 23 chooser carrier waves 2, organize 24 chooser carrier waves 9,25 discrete subcarriers selecting are like this formed discrete type sub-pattern 0, represent as left oblique line pane among Fig. 1; According to the sequence of basic sequence 1 formation of cyclic shift to the right, form discrete type sub-pattern 1 in this way again, represent as vertical line pane among Fig. 1; So analogize, form 12 discrete type sub-pattern, the point type pane is represented discrete type sub-pattern 11 among Fig. 1.In order further to realize frequency diversity, when selecting the discrete type sub-pattern to form discrete type distribution pattern, in each symbol, will select frequency domain to be dispersed in the discrete sub-pattern of the diverse location in the whole bandwidth as far as possible, in this embodiment, the discrete type sub-pattern 0 of symbol 4, the discrete type sub-pattern 1 of symbol 5, discrete type sub-pattern 2 in the symbol 6 is formed discrete type and is distributed pattern 0, shown in the shallow white ruling in Fig. 1 symbol 4～6, this discrete type distributes pattern to comprise 25 * 3 (75) individual discrete subcarriers; So analogize, the discrete type sub-pattern 1 of symbol 4, the discrete type sub-pattern 2 of symbol 5, the discrete type sub-pattern 3 in the symbol 6 is formed discrete type and is distributed pattern 1, shown in the Dark grey ruling in Fig. 1 symbol 4～6; This analogizes for another example, forms 12 discrete types distribution patterns, and shown in the grey ruling in Fig. 1 symbol 4～6 is that discrete type distributes pattern 11.
Fig. 2 is that the centralised allocation mode and the discrete type method of salary distribution adopt a kind of time-multiplexed specific embodiment between subframe.In this embodiment, suppose in the subframe of a 0.5ms, first OFDM symbol, promptly symbol 0, is used for sending pilot tone and shared control information, all the other 6 symbols, promptly symbol 1～6 is used for sending user data.Subframe i adopts the mode of centralised allocation, and the centralized sub-pattern in the symbol 1～3 is formed centralised allocation pattern 0～11, and the centralized sub-pattern in the symbol 4～6 is formed centralised allocation pattern 12～23.The mode that subframe (i+1) adopts discrete type to distribute, the discrete type sub-pattern in the symbol 1～3 is formed discrete type and is distributed pattern 0～11, and the discrete type sub-pattern in the symbol 4～6 is formed discrete type and is distributed pattern 12～23.Centralised allocation pattern and discrete type distribute the composition of pattern to be similar to specific embodiment 1.
Fig. 3 is that the centralised allocation mode and the discrete type method of salary distribution adopt another time-multiplexed specific embodiment between subframe.In this embodiment, suppose in the subframe of a 0.5ms, first OFDM symbol, promptly symbol 0, is used for sending pilot tone and shared control information, all the other 6 symbols, promptly symbol 1～6 is used for sending user data.Subframe i adopts the mode of centralised allocation, and the centralized sub-pattern in the symbol 1～6 is formed centralised allocation pattern 0～11.The mode that subframe (i+1) adopts discrete type to distribute, the discrete type sub-pattern in the symbol 1～6 is formed discrete type and is distributed pattern 0～11.Centralised allocation pattern and discrete type distribute the composition of pattern to be similar to specific embodiment 1.
Utilize method of the present invention in the data multiplex process, adopt between subframe or time division multiplexing centralised allocation pattern and discrete type distribution pattern in the subframe, can give full play to these two kinds and distribute pattern advantage separately, to be fit to various channel circumstances, the method of salary distribution is simple simultaneously, and control greatly reduces the expense of control signaling flexibly, while two kinds of methods of salary distribution are owing to the multiplexed form of the time-division of adopting, so can at utmost bring into play frequency diversity and multi-user's gain at frequency domain.If come the discrete formula to distribute pattern based on the RS sequence, then can also effectively reduce the interference of minizone.
Utilize above-mentioned method, be easy to promote other distortion that obtains data multiplex of the present invention, for example, the change of the discrete range of distribution of range of distribution and subcarrier in the sub-carrier set, the change of centralised allocation pattern number, discrete type distributes the change of pattern number, contain the change of centralized sub-pattern number in the centralised allocation pattern, discrete type distributes the change that contains discrete type sub-pattern number in the pattern, centralized sub-pattern contains continuous sub-carrier number purpose and changes, the discrete type sub-pattern contains discrete sub-carrier number purpose and changes, and difference of frequency pilot sign present position or the like feature can freely form the embodiment of a plurality of data multiplexs.Those skilled in the art that should be understood that the above preferred embodiment of the present invention that only is, are not to be used for limiting practical range of the present invention; Everyly do equivalence according to the present invention and change and revise, all contained by claim of the present invention.
Claims (6)
1. the data multiplexing method of an orthogonal FDM communication system, multiplexing at time domain and frequency domain to distribute pattern to be that basic allocation unit carries out data, it is characterized in that, comprising:
Formation comprises the centralised allocation pattern and/or discrete type distributes the subframe of pattern or the step of frame; And
Described centralised allocation pattern of time division multiplexing and discrete type distribute the step of pattern in subframe or frame and/or between subframe or frame;
Wherein, described centralised allocation pattern and discrete type distribute pattern to be arranged in a plurality of OFDM symbols that described subframe or frame are used to send user data;
Wherein, described centralised allocation pattern is a plurality of zones of forming at the subcarrier of frequency domain continuous distribution in described a plurality of OFDM symbols; Described discrete type distribution pattern is a plurality of zones of forming at the discontinuously arranged subcarrier of frequency domain in described a plurality of OFDM symbols;
Described centralised allocation pattern comprises a plurality of centralized sub-pattern; Described discrete type distributes pattern to comprise a plurality of discrete type sub-pattern; In described a plurality of centralized sub-pattern each is an OFDM symbol in time, accounts for a plurality of continuous sub-carriers on frequency domain; In described a plurality of discrete type sub-pattern each is an OFDM symbol in time, accounts for a plurality of discontinuous subcarriers on frequency domain;
The sub-carrier number that comprises in the described centralized sub-pattern is according to the length of minimum data unit and/or alleviate the feedback expense that metric data brought and determine, and the sub-carrier number of the described centralized sub-pattern of having determined remains unchanged; The sub-carrier number that comprises in the described discrete type sub-pattern determines according to the length that will satisfy, and the sub-carrier number of the described discrete type sub-pattern of having determined remains unchanged.
2. data multiplexing method according to claim 1 is characterized in that, forms described discrete type and distributes the selection of subcarrier of pattern or discrete type sub-pattern based on even distribution number, pseudo random number or based on the basic sequence of being derived by the RS sequence.
3. data multiplexing method according to claim 1 is characterized in that, further comprises the step of getting rid of the OFDM symbol that is used to insert pilot tone in described subframe or the frame.
4. according to the described data multiplexing method of arbitrary claim in the claim 1,2 or 3, it is characterized in that, when described centralised allocation pattern of time division multiplexing in subframe or frame and discrete type distribution pattern, the front or the back of the discrete type range of distribution of pattern distributed in the position of transmitting the centralised allocation zone of described centralised allocation pattern at the described discrete type of transmission; And the described front and back position of having determined remains unchanged in follow-up subframe is multiplexing.
5. data multiplexing method according to claim 1 is characterized in that, a plurality of centralised allocation patterns or discrete type distribute pattern to be assigned to same user.
6. data multiplexing method according to claim 1 is characterized in that, each distributes the division of pattern mutually orthogonal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100112445A CN101005341B (en) | 2006-01-20 | 2006-01-20 | Data multiplexing method for orthogonal frequency division multipex communication system |
| PCT/CN2006/003770 WO2007082456A1 (en) | 2006-01-20 | 2006-12-30 | A data multiplexing method in the orthogonal frequency division multiplex system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100112445A CN101005341B (en) | 2006-01-20 | 2006-01-20 | Data multiplexing method for orthogonal frequency division multipex communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101005341A CN101005341A (en) | 2007-07-25 |
| CN101005341B true CN101005341B (en) | 2011-07-13 |
Family
ID=38287254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100112445A Active CN101005341B (en) | 2006-01-20 | 2006-01-20 | Data multiplexing method for orthogonal frequency division multipex communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101005341B (en) |
| WO (1) | WO2007082456A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742668B (en) | 2008-11-06 | 2012-01-25 | 中兴通讯股份有限公司 | Resource unit mapping method |
| CN101998259A (en) * | 2009-08-18 | 2011-03-30 | 中兴通讯股份有限公司 | Allocation method, device and system of resources occupie by multicast control channel |
| CN102325377B (en) * | 2011-05-24 | 2014-08-06 | 电信科学技术研究院 | Resource scheduling indication method and device |
| CN108400849B (en) * | 2017-02-04 | 2022-04-29 | 中兴通讯股份有限公司 | Information sending method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531230A (en) * | 2003-03-14 | 2004-09-22 | 北京泰美世纪科技有限公司 | Continuous pilot frequency data transmission method based on OFDM frequency hop in broadcasting system |
| CN1604509A (en) * | 2004-10-29 | 2005-04-06 | 清华大学 | Time-frequency matrix two-dimensional channel dynamic allocation method in multimedia information transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005081437A1 (en) * | 2004-02-17 | 2005-09-01 | Huawei Technologies Co., Ltd. | Multiplexing scheme in a communication system |
-
2006
- 2006-01-20 CN CN2006100112445A patent/CN101005341B/en active Active
- 2006-12-30 WO PCT/CN2006/003770 patent/WO2007082456A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1531230A (en) * | 2003-03-14 | 2004-09-22 | 北京泰美世纪科技有限公司 | Continuous pilot frequency data transmission method based on OFDM frequency hop in broadcasting system |
| CN1604509A (en) * | 2004-10-29 | 2005-04-06 | 清华大学 | Time-frequency matrix two-dimensional channel dynamic allocation method in multimedia information transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101005341A (en) | 2007-07-25 |
| WO2007082456A1 (en) | 2007-07-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101094214A (en) | Data multiplexing method in use for orthogonal frequency division multiplexing communication system | |
| CN101340228B (en) | Transmission method of reference signal | |
| CN101335731B (en) | Transmission method and device based on OFDM | |
| CN101080081B (en) | Allocation and indication method of system resource | |
| CN101953086B (en) | Wireless communication system with multiple transmission antennas using pilot subcarrier allocation | |
| CN101507159B (en) | Dispensing device and communication means | |
| AU2009225269B2 (en) | Wireless Communication System Using Pilot Allocation, Method and Pilot Pattern Thereof | |
| CN102740463A (en) | Method, device, base station and user equipment for reducing interference in wireless communication system | |
| KR20080054164A (en) | Method and apparatus for transmitting reference signal, setting reference signal transmission pattern, and setting and allocating resource block | |
| CN101389120B (en) | Method and device for transmitting ACK/NACK signal | |
| US8699427B2 (en) | OFDMA communication system and communication method | |
| CN103107857A (en) | Sending method and sending device for improving physical downlink control channel | |
| KR20120138423A (en) | Method and apparatus for allocating resource of common control channel with dedicated reference signal | |
| CN101064701B (en) | Method for transmitting measurement pilot and its user terminal, system | |
| CN101989970A (en) | Method and equipment for sending demodulation pilot frequency signal | |
| CN101150554B (en) | A data transmitting method based on OFDM system | |
| CN101150553A (en) | A resource block allocation method based on OFDM system | |
| CN101005341B (en) | Data multiplexing method for orthogonal frequency division multipex communication system | |
| CN104255077A (en) | Method for transmitting uplink signal, user equipment and network device | |
| CN101518139B (en) | OFDMA communication system and communication method | |
| CN101110634B (en) | Signal transmitting method for enhanced TDD system | |
| CN101682843A (en) | A method for dividing permutation zone of subcarriers and an information configuration system | |
| CN104684055B (en) | A kind of orthogonal frequency and the MIMO-OFDM system DTX power optimization methods of space division mixing | |
| CN102055705A (en) | Uplink synchronization method and system for terminals | |
| CN101677304B (en) | Collocation method of downlink common pilot frequency |
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 |