CN101944946A - Wireless communication system and method and method for transmitting pilot frequency in wireless communication system - Google Patents
Wireless communication system and method and method for transmitting pilot frequency in wireless communication system Download PDFInfo
- Publication number
- CN101944946A CN101944946A CN2009102087174A CN200910208717A CN101944946A CN 101944946 A CN101944946 A CN 101944946A CN 2009102087174 A CN2009102087174 A CN 2009102087174A CN 200910208717 A CN200910208717 A CN 200910208717A CN 101944946 A CN101944946 A CN 101944946A
- Authority
- CN
- China
- Prior art keywords
- data flow
- pilot
- pilot tone
- resource block
- time
- 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
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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless communication system and method and a method for transmitting the pilot frequency in the wireless communication system. The method for transmitting the pilot frequency comprises the following step: a base station transmits the pilot frequency to a terminal in the broadcasting service region and/or multicast service region of a downlink subframe, wherein the pilot frequency of the downlink subframe satisfies the following condition: in each physical resource block of the downlink subframe, the number of pilot frequencies corresponding to each data stream is a natural number between 6 to 11. By using the wireless communication system and method of the invention, the pilot density of the radio frequency can be increased so as to increase the quality of the channel estimation and improve the overall performance of the system. Therefore, the wireless communication system and method of the invention can satisfy the needs of the broadcasting service.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of wireless communication system and wireless communications method, and relate to transmission pilot tone and method in the wireless communication system.
Background technology
Multicast and broadcasting are the technology that transmits data message from a data source to a plurality of targets.In traditional mobile network, cell broadcaste service (Cell Broadcast Service abbreviates CBS as) allows low bit rate data to share broadcast channel to all users' transmissions by the sub-district, belongs to information series business.Now, people no longer are satisfied with phone and messaging service to the demand of mobile communication, fast development along with the Internet, a large amount of multimedia services have appearred, the some of them applied business requires a plurality of users can receive identical data simultaneously, for example, video request program, television broadcasting, video conference, online education, interactive game etc.These mobile multi-media services are compared with general data, have characteristics such as data volume is big, longer duration, delay sensitive.At present, the Short Message Service that the broadcasting service of point-to-multipoint (for example, Cell Broadcast CB) can only be carried out text formatting can not satisfy the demand of diversified services such as audio frequency and video and data.In order effectively to utilize mobile network resource, in the third generation and the 4th generation wireless communication standard, multimedia multicast and broadcasting service (Multimedia Broadcast/MulticastService have been proposed, abbreviate MBMS as), such as in IEEE 802.16m standard, just having proposed Multimedia Broadcast Multicast Service (Multicast Broadcast Service, abbreviate MBS as) and the Multimedia Broadcast Multicast Service (Enhanced Multcast Broadcast Service abbreviates E-MBS as) of enhancement mode.
Because present wireless communication system has only been considered ordinary individual's communication service scene, and has not been considered the scene of broadcasting service when the pilot tone of design down link.But the wireless channel time delay of Personal Communications Services application scenarios correspondence is less relatively, and for the broadcasting service scene, especially identical networking (Same Frequency Network, abbreviate SFN as) the broadcasted application scene, the signal that each receiving terminal receives is through the sample after the different time delays from a plurality of base stations on every side, therefore, at receiving terminal, its corresponding wireless channel has very large multidiameter, and it is very abundant to postpone the footpath, this has bigger frequency selective fading with regard to causing broadcasting service channel with respect to the general service channel, so the pilot frequency format under the general service channel no longer has been applicable to the broadcasting service scene.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of wireless communication system and method, and the method that sends pilot tone in a kind of wireless communication system, to solve the problem that the pilot frequency format under the general service channel in the prior art is not suitable for broadcasting service.
To achieve these goals, according to an aspect of the present invention, the method that sends pilot tone in a kind of wireless communication system is provided, comprise: send pilot tone to terminal in broadcasting, multicast and/or the multicast service zone of base station in descending sub frame, wherein, the pilot tone of descending sub frame meets following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
Preferably, the pilot tone of each data flow correspondence also meets following condition: each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2.
Preferably, the pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
Preferably, the pilot tone of each data flow correspondence also meets following condition: in Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol at least 2 time-domain symbol, and the absolute value of the difference of the index of at least 2 time-domain symbol is more than or equal to 2.
Preferably, the pilot tone of at least one the data flow correspondence in the data flow that the base station sends meets following condition: the relative indexing of the carrier wave that takies in Physical Resource Block is an odd number, wherein, the relative indexing of carrier wave is the index of carrier wave with respect to first carrier wave on the time-domain symbol at carrier wave place.
Preferably, the number of the data flow that sends in the base station is that the relative indexing of the carrier wave that the pilot tone of the data flow correspondence that the base station sends takies in Physical Resource Block is an odd number under one the situation; The number of the data flow that sends in the base station is that the relative indexing of the carrier wave that the corresponding pilot tone of first data flow in the data flow that the base station sends takies in Physical Resource Block is an odd number under two the situation.
Preferably, when the base station sent two data flow, the carrier wave that the pilot tone of two data flow correspondences takies was positioned on the adjacent carrier of same time-domain symbol.
Preferably, Physical Resource Block comprises 18 carrier waves at frequency domain, comprises M time-domain symbol in time domain, and M is the natural number one of among the 5-7.
Preferably, comprise the pilot frequency format of Physical Resource Block of 5 time-domain symbol by deletion from the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol i symbol acquisition, wherein 1＜=i＜=6.
Preferably, the pilot frequency format that comprises the Physical Resource Block of 7 time-domain symbol obtains by increase i symbol in the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol, wherein 1＜=i＜=6.
To achieve these goals, according to another aspect of the present invention, a kind of wireless communication system is provided, comprise base station and terminal, comprise the pilot tone sending module in the base station, be used for sending pilot tone to terminal in broadcasting, multicast and/or the multicast service zone at descending sub frame, wherein, the pilot tone of descending sub frame meets following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
Preferably, in Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol at least 2 time-domain symbol, and the absolute value of the difference of the index of at least 2 time-domain symbol is more than or equal to 2.
Preferably, the pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
To achieve these goals, according to a further aspect of the invention, a kind of wireless communications method is provided, comprise: in broadcasting, multicast and/or multicast service, the pilot tone of descending sub frame meets following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
Preferably, the pilot tone of each data flow correspondence also meets following condition: each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2.
Preferably, the pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
The following beneficial effect of the present invention: because in broadcasting, multicast and/or the multicast service zone of descending sub frame, the pilot tone of descending sub frame meets following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 7-11, with respect to individual Traffic Channel, can increase the pilot density on the frequency domain, and then thereby the quality that can improve channel estimating improves the overall performance of system, thereby wireless communication system of the present invention and method can satisfy the needs of broadcasting service.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of three kinds of basic resource blocks in 16m;
Fig. 2 is the schematic diagram according to the pilot frequency format of embodiments of the invention 1;
Fig. 3 is the schematic diagram according to the pilot frequency format of embodiments of the invention 2;
Fig. 4 is the schematic diagram according to the pilot frequency format of embodiments of the invention 3;
Fig. 5 is the schematic diagram according to the pilot frequency format of embodiments of the invention 4;
Fig. 6 is the schematic diagram according to the pilot frequency format of embodiments of the invention 5;
Fig. 7 is the schematic diagram according to the pilot frequency format of embodiments of the invention 6;
Fig. 8 is the schematic diagram according to the pilot frequency format of embodiments of the invention 7;
Fig. 9 is the schematic diagram according to the pilot frequency format of embodiments of the invention 8;
Figure 10 is the schematic diagram according to the pilot frequency format of embodiments of the invention 9;
Figure 11 is the schematic diagram according to the pilot frequency format of embodiments of the invention 10;
Figure 12 is the schematic diagram according to the pilot frequency format of embodiments of the invention 11;
Figure 13 is the schematic diagram according to the pilot frequency format of embodiments of the invention 12;
Figure 14 is the schematic diagram according to the pilot frequency format of embodiments of the invention 13;
Figure 15 is the schematic diagram according to the pilot frequency format of embodiments of the invention 14;
Figure 16 is the schematic diagram according to the pilot frequency format of embodiments of the invention 15;
Figure 17 is the schematic diagram according to the pilot frequency format of embodiments of the invention 16;
Figure 18 is the schematic diagram according to the pilot frequency format of embodiments of the invention 17;
Figure 19 is the schematic diagram according to the pilot frequency format of embodiments of the invention 18;
Figure 20 is the schematic diagram according to the pilot frequency format of embodiments of the invention 19;
Figure 21 is the schematic diagram according to the pilot frequency format of embodiments of the invention 20;
Figure 22 is the schematic diagram according to the pilot frequency format of embodiments of the invention 21;
Figure 23 is the schematic diagram according to the pilot frequency format of embodiments of the invention 22;
Figure 24 is the schematic diagram according to the pilot frequency format of embodiments of the invention 23;
Figure 25 is the schematic diagram according to the pilot frequency format of embodiments of the invention 24;
Figure 26 is the schematic diagram according to the pilot frequency format of embodiments of the invention 25;
Figure 27 is the schematic diagram according to the pilot frequency format of embodiments of the invention 26;
Figure 28 is the schematic diagram according to the pilot frequency format of embodiments of the invention 27;
Figure 29 is the schematic diagram according to the pilot frequency format of embodiments of the invention 28;
Figure 30 is the schematic diagram according to the pilot frequency format of embodiments of the invention 29;
Figure 31 is the schematic diagram according to the pilot frequency format of embodiments of the invention 30;
Figure 32 is the schematic diagram according to the pilot frequency format of embodiments of the invention 31;
Figure 33 is the schematic diagram according to the pilot frequency format of embodiments of the invention 32;
Figure 34 is the schematic diagram according to the pilot frequency format of embodiments of the invention 33;
Figure 35 is the block diagram according to the wireless communication system of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
At first, wherein show block diagram according to the wireless communication system of the embodiment of the invention referring to Figure 35.This wireless communication system comprises base station 1 and a plurality of terminal 2, comprises pilot tone sending module 11 in the base station 1, is used for sending pilot tone to terminal in broadcasting, multicast and/or the multicast service zone at descending sub frame.Wherein, meet following condition in the pilot tone of descending sub frame: in each Physical Resource Block at descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.Wherein, the pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.In Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol at least 2 time-domain symbol, and the absolute value of the difference of the index of at least 2 time-domain symbol is more than or equal to 2.
The embodiment of the invention also provides a kind of wireless communications method, in broadcasting, multicast and/or multicast service, the pilot tone of descending sub frame meets following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.Wherein, the pilot tone of each data flow correspondence also meets following condition: each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2.The pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
The embodiment of the invention also provides the method that sends pilot tone in a kind of wireless communication system, comprise: send pilot tone to terminal in broadcasting, multicast and/or the multicast service zone of base station in descending sub frame, wherein, the pilot tone of descending sub frame can meet following condition: in each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
Preferably, the pilot tone of each data flow correspondence can also meet following condition one of at least:
Each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2;
The pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain, wherein, adjacent pilot tone refers to for a pilot frequency locations A on frequency domain, another on frequency domain with the corresponding pilot tone of pilot frequency locations of the interval minimum of pilot frequency locations A, the difference between the subcarrier in frequency domain relative indexing of position correspondence is frequently instructed at the interval on the frequency domain;
In Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol at least 2 time-domain symbol, and the absolute value of the difference of the index of at least 2 time-domain symbol is more than or equal to 2, wherein, the difference of the index of time-domain symbol is poor between the time-domain symbol manipulative indexing value shown in the accompanying drawing 1;
The pilot tone of at least one the data flow correspondence in the data flow that the base station sends meets following condition: the relative indexing of the carrier wave that takies in Physical Resource Block is an odd number, wherein, the relative indexing of carrier wave is the index of carrier wave with respect to first carrier wave on the time-domain symbol at carrier wave place.Particularly, the number of the data flow that sends in the base station is that the relative indexing of the carrier wave that the pilot tone of the data flow correspondence that the base station sends takies in Physical Resource Block is an odd number under one the situation; The number of the data flow that sends in the base station is that the relative indexing of the carrier wave that the corresponding pilot tone of first data flow in the data flow that the base station sends takies in Physical Resource Block is an odd number under two the situation.
In addition, when the base station sent two data flow, the carrier wave that the pilot tone of two data flow correspondences takies can be positioned on the adjacent carrier of same time-domain symbol.
Physical Resource Block in the said method comprises 18 carrier waves at frequency domain, comprises M time-domain symbol in time domain, and M is the natural number one of among the 5-7.The pilot frequency format that comprises the Physical Resource Block of 5 time-domain symbol can be by deletion from the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol i symbol acquisition, wherein 1＜=i＜=6.The pilot frequency format that comprises the Physical Resource Block of 7 time-domain symbol can obtain by increase i symbol in the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol, 1＜=i＜=6 wherein, promptly, pilot configuration on i the symbol is duplicated in the pilot configuration that increases to this Physical Resource Block, and the pilot configuration that duplicates can add before the optional sign of former pilot configuration.
Below by detailed embodiment the condition that pilot tone satisfied is described in detail.
At first introduce the structure of the Resource Block at pilot tone place, Fig. 1 is the structural representation of three kinds of basic resource blocks (that is Physical Resource Block) in 16m.As shown in Figure 1, Fig. 1 (a), Fig. 1 (b) and Fig. 1 (c) are respectively the structures of the basic resource blocks used in the embodiment of the invention, occupy 5,6 and 7 symbols (that is, the OFDMA symbol) on time domain respectively, all occupy 18 carrier waves on frequency domain.Shown in Fig. 1 (a), when descending subframe had 5 symbols, the physical resource block structure was 18*5 (a frequency domain * time domain); Shown in Fig. 1 (b), when descending subframe had 6 symbols, the physical resource block structure was 18*6 (a frequency domain * time domain); Shown in Fig. 1 (c), when descending subframe had 7 symbols, the physical resource block structure was 18*7 (a frequency domain * time domain).
Fig. 2 is the schematic diagram according to the pilot frequency format of embodiments of the invention 1.As shown in Figure 2, a kind of subframe of present embodiment explanation at the 18*5 structure, set pilot frequency format in each Resource Block, the pilot tone number of each data flow (perhaps antenna) is 7, gray squares is represented the position of the carrier wave that pilot tone takies.Pilot configuration when wherein Fig. 2 (a) is a data flow, Fig. 2 (b) are the pilot configuration at two data flow.Shown in Fig. 2 (a) and Fig. 2 (b), the numeral 1 and 2 in the gray squares is represented data flow 1 and data flow 2 respectively.In Fig. 2 (a), the number of pilots on the identical time-domain symbol of data flow 1 in basic resource blocks is set to 1 or 2, and adjacent pilot tone is spaced apart one of 1-4 carrier wave on the frequency domain of data flow 1 in basic resource blocks on frequency domain.In Fig. 2 (b), in basic resource blocks, the pilot tone of data flow 2 is arranged on data flow 1 on the adjacent carrier of the identical time-domain symbol of this basic resource blocks.In addition, as shown in Fig. 2 (a), to 2 pilot tones of data flow 1 be set on each time-domain symbol in 2 time-domain symbol in the basic resource blocks (in the present embodiment, being time-domain symbol 1 and time-domain symbol 5), and the difference of the index of these two time-domain symbol is 5-1=4.And, shown in Fig. 2 (a), it at the relative indexing on the frequency domain of basic resource blocks the pilot tone that data flow 1 is set on the carrier wave of odd number, the relative indexing of carrier wave is meant the index of this carrier wave with respect to first carrier wave on the time-domain symbol at this carrier wave place, for example, for the 5th carrier wave on the time-domain symbol 2, its relative indexing is 5.
Fig. 3 is the schematic diagram according to the pilot frequency format of embodiments of the invention 2.As shown in Figure 3, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 7, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Fig. 3 (a) is a data flow, Fig. 3 (b) are the pilot configuration at two data flow.As shown in Fig. 3 (a), will 2 pilot tones of data flow 1 be set on each time-domain symbol in 2 time-domain symbol in the basic resource blocks (in the present embodiment, being time-domain symbol 1 and time-domain symbol 6), and the difference of the index of these two time-domain symbol is 5.
Fig. 4 is the schematic diagram according to the pilot frequency format of embodiments of the invention 3.As shown in Figure 4, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Fig. 4 (a) is a data flow, Fig. 4 (b) are the pilot configuration at two data flow.As shown in figure (a), will 2 pilot tones of data flow 1 be set on each time-domain symbol in 2 time-domain symbol in the basic resource blocks, and the index difference of these two time-domain symbol is 5.
Fig. 5 is the schematic diagram according to the pilot frequency format of embodiments of the invention 4.As shown in Figure 5, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Fig. 5 (a) is a data flow, Fig. 5 (b) are the pilot configuration at two data flow.As shown in Fig. 5 (a), will 2 pilot tones of data flow 1 be set on each time-domain symbol in 3 time-domain symbol in the basic resource blocks, and the index difference of these 3 time-domain symbol is for being less than or equal to 4.
Fig. 6 is the schematic diagram according to the pilot frequency format of embodiments of the invention 5.As shown in Figure 6, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Fig. 6 (a) is a data flow, Fig. 6 (b) are the pilot configuration at two data flow.
Fig. 7 is the schematic diagram according to the pilot frequency format of embodiments of the invention 6.As shown in Figure 7, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 9, pilot configuration when wherein Fig. 7 (a) is a data flow, Fig. 7 (b) are the pilot configuration at two data flow.
Fig. 8 is the schematic diagram according to the pilot frequency format of embodiments of the invention 7.As shown in Figure 8, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of inserting of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Fig. 8 (a) is a data flow, Fig. 8 (b) are the pilot configuration at two data flow.
Fig. 9 is the schematic diagram according to the pilot frequency format of embodiments of the invention 8.As shown in Figure 9, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of inserting of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 9, pilot configuration when wherein Fig. 9 (a) is a data flow, Fig. 9 (b) are the pilot configuration at two data flow.
Figure 10 is the schematic diagram according to the pilot frequency format of embodiments of the invention 9.As shown in figure 10, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of inserting of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Figure 10 (a) is a data flow, Figure 10 (b) are the pilot configuration at two data flow.
Figure 11 is the schematic diagram according to the pilot frequency format of embodiments of the invention 10.As shown in figure 11, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 11 (a) is a data flow, Figure 11 (b) are the pilot configuration at two data flow.
Figure 12 is the schematic diagram according to the pilot frequency format of embodiments of the invention 11.As shown in figure 12, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 12 (a) is a data flow, Figure 12 (b) are the pilot configuration at two data flow.
Figure 13 is the schematic diagram according to the pilot frequency format of embodiments of the invention 12.As shown in figure 13, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Figure 13 (a) is a data flow, Figure 13 (b) are the pilot configuration at two data flow.
Figure 14 is the schematic diagram according to the pilot frequency format of embodiments of the invention 13.As shown in figure 14, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 14 (a) is a data flow, Figure 14 (b) are the pilot configuration at two data flow.
Figure 15 is the schematic diagram according to the pilot frequency format of embodiments of the invention 14.As shown in figure 15, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 15 (a) is a data flow, Figure 15 (b) are the pilot configuration at two data flow.
Figure 16 is the schematic diagram according to the pilot frequency format of embodiments of the invention 15.As shown in figure 16, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Figure 16 (a) is a data flow, Figure 16 (b) are the pilot configuration at two data flow.
Figure 17 is the schematic diagram according to the pilot frequency format of embodiments of the invention 16.As shown in figure 17, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 17 (a) is a data flow, Figure 17 (b) are the pilot configuration at two data flow.
Figure 18 is the schematic diagram according to the pilot frequency format of embodiments of the invention 17.As shown in figure 18, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 10, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 18 (a) is a data flow, Figure 18 (b) are the pilot configuration at two data flow.
Figure 19 is the schematic diagram according to the pilot frequency format of embodiments of the invention 18.As shown in figure 19, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 9, pilot configuration when wherein Figure 19 (a) is a data flow, Figure 19 (b) are the pilot configuration at two data flow.
Figure 20 is the schematic diagram according to the pilot frequency format of embodiments of the invention 19.As shown in figure 20, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 20 (a) is a data flow, Figure 20 (b) are the pilot configuration at two data flow.
Figure 21 is the schematic diagram according to the pilot frequency format of embodiments of the invention 20.As shown in figure 21, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 10, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 21 (a) is a data flow, Figure 21 (b) are the pilot configuration at two data flow.
Figure 22 is the schematic diagram according to the pilot frequency format of embodiments of the invention 21.As shown in figure 22, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 9, pilot configuration when wherein Figure 22 (a) is a data flow, Figure 22 (b) are the pilot configuration at two data flow.
Figure 23 is the schematic diagram according to the pilot frequency format of embodiments of the invention 22.As shown in figure 23, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 10, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 23 (a) is a data flow, Figure 23 (b) are the pilot configuration at two data flow.
Figure 24 is the schematic diagram according to the pilot frequency format of embodiments of the invention 23.As shown in figure 24, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 11, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 24 (a) is a data flow, Figure 24 (b) are the pilot configuration at two data flow.
Figure 25 is the schematic diagram according to the pilot frequency format of embodiments of the invention 24.As shown in figure 25, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 9, pilot configuration when wherein Figure 25 (a) is a data flow, Figure 25 (b) are the pilot configuration at two data flow.
Figure 26 is the schematic diagram according to the pilot frequency format of embodiments of the invention 25.As shown in figure 26, the present embodiment explanation is a kind of at the subframe that comprises 8 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 26 (a) is a data flow, Figure 26 (b) are the pilot configuration at two data flow.
Figure 27 is the schematic diagram according to the pilot frequency format of embodiments of the invention 26.As shown in figure 26, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 27 (a) is a data flow, Figure 27 (b) are the pilot configuration at two data flow.
Figure 28 is the schematic diagram according to the pilot frequency format of embodiments of the invention 27.As shown in figure 28, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 6, pilot configuration when wherein Figure 28 (a) is a data flow, Figure 28 (b) are the pilot configuration at two data flow.
Figure 29 is the schematic diagram according to the pilot frequency format of embodiments of the invention 28.As shown in figure 29, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 8, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 29 (a) is a data flow, Figure 29 (b) are the pilot configuration at two data flow.
Figure 30 is the schematic diagram according to the pilot frequency format of embodiments of the invention 29.As shown in figure 30, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, and the pilot tone number of each data flow is 9, gray squares is represented the carrier position that pilot tone takies.Pilot configuration when wherein Figure 30 (a) is a data flow, Figure 30 (b) are the pilot configuration at two data flow.
Figure 31 is the schematic diagram according to the pilot frequency format of embodiments of the invention 30.As shown in figure 31, the present embodiment explanation is a kind of at the subframe that comprises 5 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 6, pilot configuration when wherein Figure 31 (a) is a data flow, Figure 31 (b) are the pilot configuration at two data flow.
Figure 32 is the schematic diagram according to the pilot frequency format of embodiments of the invention 31.Shown in figure 32, the present embodiment explanation is a kind of at the subframe that comprises 6 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Figure 32 (a) is a data flow, Figure 32 (b) are the pilot configuration at two data flow.
Figure 33 is the schematic diagram according to the pilot frequency format of embodiments of the invention 32.As shown in figure 33, the present embodiment explanation is a kind of at the subframe that comprises 7 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 10, pilot configuration when wherein Figure 33 (a) is a data flow, Figure 33 (b) are the pilot configuration at two data flow.
Figure 34 is the schematic diagram according to the pilot frequency format of embodiments of the invention 33.As shown in figure 34, the present embodiment explanation is a kind of at the subframe that comprises 8 symbolic constructions, the form of the inner pilot tone of each Resource Block, gray squares is represented the carrier position that pilot tone takies, the pilot tone number of each data flow is 8, pilot configuration when wherein Figure 34 (a) is a data flow, Figure 34 (b) are the pilot configuration at two data flow.
In sum, the scheme that the embodiment of the invention provides can increase the pilot density on the frequency domain, and then thereby the quality that can improve channel estimating improves the overall performance of system, thereby the wireless communication system that provides of the embodiment of the invention and the method needs that can satisfy broadcasting service.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. send the method for pilot tone in the wireless communication system, it is characterized in that, send pilot tone to terminal in broadcasting, multicast and/or the multicast service zone of base station in descending sub frame, wherein, the pilot tone of descending sub frame meets following condition:
In each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
2. method according to claim 1 is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2.
3. method according to claim 1 is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
4. method according to claim 1, it is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: in described Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol in described at least 2 time-domain symbol, and the absolute value of the difference of the index of described at least 2 time-domain symbol is more than or equal to 2.
5. method according to claim 1, it is characterized in that, the described pilot tone of at least one the data flow correspondence in the data flow that the base station sends meets following condition: the relative indexing of the carrier wave that takies in described Physical Resource Block is an odd number, wherein, the relative indexing of described carrier wave is the index of described carrier wave with respect to first carrier wave on the time-domain symbol at described carrier wave place.
6. method according to claim 5, it is characterized in that, the number of the data flow that sends in described base station is that the relative indexing of the carrier wave that the described pilot tone of the described data flow correspondence that described base station sends takies in described Physical Resource Block is an odd number under one the situation; The number of the data flow that sends in described base station is that the relative indexing of the carrier wave that the corresponding pilot tone of first data flow in the described data flow that described base station sends takies in described Physical Resource Block is an odd number under two the situation.
7. method according to claim 1 is characterized in that, when the base station sent two data flow, the carrier wave that the described pilot tone of two data flow correspondences takies was positioned on the adjacent carrier of same time-domain symbol.
8. method according to claim 1 is characterized in that, described Physical Resource Block comprises 18 carrier waves at frequency domain, comprises M time-domain symbol in time domain, and M is the natural number one of among the 5-7.
9. method according to claim 7 is characterized in that, the pilot frequency format of Physical Resource Block that comprises 5 time-domain symbol is by deletion from the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol i symbol acquisition, wherein 1＜=i＜=6.
10. method according to claim 7 is characterized in that, the pilot frequency format that comprises the Physical Resource Block of 7 time-domain symbol obtains by increase i symbol in the pilot configuration of the Physical Resource Block that comprises 6 time-domain symbol, wherein 1＜=i＜=6.
11. a wireless communication system comprises base station and terminal, it is characterized in that,
Comprise the pilot tone sending module in the described base station, be used for sending pilot tone to terminal in broadcasting, multicast and/or the multicast service zone at descending sub frame, wherein, the pilot tone of descending sub frame meets following condition:
In each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
12. system according to claim 11, it is characterized in that, in described Physical Resource Block, at least 2 time-domain symbol meet the following conditions: comprise 2 pilot tones on each data flow each time-domain symbol in described at least 2 time-domain symbol, and the absolute value of the difference of the index of described at least 2 time-domain symbol is more than or equal to 2.
13. system according to claim 11 is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
14. a wireless communications method is characterized in that, in broadcasting, multicast and/or multicast service, the pilot tone of descending sub frame meets following condition:
In each Physical Resource Block of descending sub frame, the number of pilots of each data flow correspondence is the natural number one of among the 6-11.
15. method according to claim 14 is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: each data flow is on all carrier waves of the same time-domain symbol of each Physical Resource Block, and the number of pilots that comprises is no more than 2.
16. method according to claim 14 is characterized in that, the described pilot tone of each data flow correspondence also meets following condition: each data flow correspondence be no more than 4 subcarriers at the interval of pilot tone adjacent on the frequency domain on frequency domain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102087174A CN101944946A (en) | 2009-07-08 | 2009-10-27 | Wireless communication system and method and method for transmitting pilot frequency in wireless communication system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910159326.8 | 2009-07-08 | ||
| CN200910159326 | 2009-07-08 | ||
| CN2009102087174A CN101944946A (en) | 2009-07-08 | 2009-10-27 | Wireless communication system and method and method for transmitting pilot frequency in wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101944946A true CN101944946A (en) | 2011-01-12 |
Family
ID=43428774
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102087174A Pending CN101944946A (en) | 2009-07-08 | 2009-10-27 | Wireless communication system and method and method for transmitting pilot frequency in wireless communication system |
| CN2009102526114A Pending CN101951690A (en) | 2009-07-08 | 2009-11-25 | Wireless communication system and method as well as method for sending pilot frequency in wireless communication system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102526114A Pending CN101951690A (en) | 2009-07-08 | 2009-11-25 | Wireless communication system and method as well as method for sending pilot frequency in wireless communication system |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN101944946A (en) |
| WO (1) | WO2011003320A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951690A (en) * | 2009-07-08 | 2011-01-19 | 中兴通讯股份有限公司 | Wireless communication system and method as well as method for sending pilot frequency in wireless communication system |
| CN106027220A (en) * | 2011-03-01 | 2016-10-12 | Lg电子株式会社 | Method and apparatus for sending control information in wireless communication system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605172A (en) * | 2001-10-17 | 2005-04-06 | 北方电讯网络有限公司 | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
| WO2005088882A1 (en) * | 2004-03-15 | 2005-09-22 | Nortel Netowrks Limited | Pilot design for ofdm systems with four transmit antennas |
| CN101043496A (en) * | 2006-03-20 | 2007-09-26 | 华为技术有限公司 | Method and apparatus for multiplexing different service pilot resources of multi-carrier communication system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202611A (en) * | 2006-12-11 | 2008-06-18 | 中国科学院上海微系统与信息技术研究所 | Transmission method of OFDMA downlink pilot structure supporting flexible time domain resource allocation |
| CN101222263B (en) * | 2007-01-10 | 2011-09-07 | 上海贝尔阿尔卡特股份有限公司 | Method and device for mapping pilot signal in unicast and broadcast/multicast mode |
| CN101287146A (en) * | 2007-04-10 | 2008-10-15 | 华为技术有限公司 | Pilot sending and receiving method and device for special carrier |
| KR101298959B1 (en) * | 2007-06-18 | 2013-08-23 | 알까뗄 루슨트 | A method and device for pilot mapping in multiplexing mode of unicast and broadcast/multicast services |
| CN101944946A (en) * | 2009-07-08 | 2011-01-12 | 中兴通讯股份有限公司 | Wireless communication system and method and method for transmitting pilot frequency in wireless communication system |
-
2009
- 2009-10-27 CN CN2009102087174A patent/CN101944946A/en active Pending
- 2009-11-25 CN CN2009102526114A patent/CN101951690A/en active Pending
-
2010
- 2010-06-18 WO PCT/CN2010/074106 patent/WO2011003320A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605172A (en) * | 2001-10-17 | 2005-04-06 | 北方电讯网络有限公司 | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
| WO2005088882A1 (en) * | 2004-03-15 | 2005-09-22 | Nortel Netowrks Limited | Pilot design for ofdm systems with four transmit antennas |
| CN101043496A (en) * | 2006-03-20 | 2007-09-26 | 华为技术有限公司 | Method and apparatus for multiplexing different service pilot resources of multi-carrier communication system |
Non-Patent Citations (1)
| Title |
|---|
| DEBDEEP CHATTERJEE ET AL.: "《E-MBS Zone Specific Pilot Patterns for MBSFN》", 《IEEE C80216M-09/0929》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951690A (en) * | 2009-07-08 | 2011-01-19 | 中兴通讯股份有限公司 | Wireless communication system and method as well as method for sending pilot frequency in wireless communication system |
| CN106027220A (en) * | 2011-03-01 | 2016-10-12 | Lg电子株式会社 | Method and apparatus for sending control information in wireless communication system |
| CN106027220B (en) * | 2011-03-01 | 2021-03-12 | Lg电子株式会社 | Method and apparatus for transmitting control information in a wireless communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101951690A (en) | 2011-01-19 |
| WO2011003320A1 (en) | 2011-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101990166B (en) | Multimedia broadcast multicast control channel (MCCH) resource allocation method and system | |
| CN101577857A (en) | Collocation method, data transmission method and device of multimedia broadcast and multicast service | |
| US8446851B2 (en) | Method and device for transmitting a multimedia broadcast multicast service | |
| CN101959136B (en) | Sending, transmitting and receiving method of MCCH (Multi-point Control Channel) information and transmission system | |
| CN101854589A (en) | Method and system for transmitting multimedia broadcast multicast service (MBMS) control signaling | |
| CN102264038B (en) | Method and system for distribution and feedback of multimedia broadcast multicast service (MBMS) uplink resources | |
| US9066317B2 (en) | Orthogonal frequency division multiplexing symbol distributing method and system for multimedia broadcast multicast service single frequency network sub-frame | |
| CN103260133A (en) | Identification sending and acquiring method and evolution base station, terminal and communication system | |
| CN101005338B (en) | Multiplexing method for broadcast multicast service data and de-multiplexing method | |
| CN101193332B (en) | Method, system and base station for sending broadcast service data in same-frequency network | |
| CN102480689B (en) | The transmission method of MBMS and system | |
| CN101868035A (en) | Multipoint cooperative transmission system and method thereof | |
| CN102487482B (en) | The method of counting of multimedia broadcast-multicast service and system | |
| CN101998262B (en) | The collocation method of multicast broadcast multicast service notification information and device | |
| CN101944946A (en) | Wireless communication system and method and method for transmitting pilot frequency in wireless communication system | |
| CN101651489A (en) | Resource management method for synchronously networking among network elements of multimedia broadcast multicast services | |
| CN102348162A (en) | Method for sending multimedia broadcast multicast service (MBMS) control information and system thereof | |
| CN101778341B (en) | Method and system for loading update indication signaling of multimedia broadcast multicast service (MBMS) control signaling | |
| CN101969603B (en) | A kind of method and system of bearing multimedia broadcast multicast service | |
| CN101516060B (en) | Method for transmitting and receiving multicast services of multimedia broadcast | |
| CN101686433A (en) | MBMS transmission feedback method, system and devices | |
| CN101374262A (en) | Data transmission system and method for multimedia broadcast/multicast business | |
| CN102006257A (en) | Pilot frequency sending method of multicast broadcasting service | |
| CN114765493B (en) | A method, receiving end, sending end and system for realizing business scheduling | |
| CN101515856B (en) | Method for transmitting multicast services of multimedia broadcast in nontransparent relay station mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110112 |