CN103124209B - The sending, receiving method of business datum and device - Google Patents
The sending, receiving method of business datum and device Download PDFInfo
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- CN103124209B CN103124209B CN201110369431.1A CN201110369431A CN103124209B CN 103124209 B CN103124209 B CN 103124209B CN 201110369431 A CN201110369431 A CN 201110369431A CN 103124209 B CN103124209 B CN 103124209B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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Abstract
The embodiment provides the sending, receiving method of a kind of business datum and device, relate to communication technical field, for while increasing coverage radius of cell, the receptivity of business datum can be effectively ensured and invents.The sending method of described business datum, comprises determining that and sends the spatial data number that business datum adopts；According to the described spatial data number determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data.The present invention can be used in the wireless communication systems such as IEEE802.11 serial protocols.
Description
Technical field
The present invention relates to communication technical field, particularly relate to sending, receiving method and the device of business datum.
Background technology
It is well known that in wireless communication procedure, the data that transmitting terminal and receiving terminal transmit between the two include business datum and control information, wherein, the basic goal of communication is transport service data, and the Main Function controlling information is the transmission of supplementary services data.
Existing employing IEEE (InstituteofElectricalandElectronicsEngineers, Institute of Electrical and Electric Engineers) wireless communication system of 802.11 serial protocols, being primarily adapted for use in in-door covering, coverage radius of cell is little, probably within 100 to 200 meters.And in order to meet ever-increasing business demand, it is necessary to increase the coverage radius of cell of wireless communication system, for instance, make radius reach 1000 meters to support outdoor cover.
But, on the one hand, in existing wireless communication system, most of communication terminals all use battery to power, and for avoiding battery power consumption too fast, it requires that transmitting power is less；On the other hand, from the viewpoint of interference and environmental radiation etc., wireless communication procedure is also not allow for too big transmitting power.So, if coverage radius of cell increases, even if the minimum encoder bit rate coding that transmitting terminal is to allow, with maximum power emission business datum, the signal power that receiving terminal receives is likely to still only small, thus will cause that business datum receptivity does not reach requirement, have impact on the accurate reception of business datum.Therefore, how while increasing coverage radius of cell, the receptivity being effectively ensured business datum is a urgent problem.
Summary of the invention
The main purpose of embodiments of the invention is in that, it is provided that the sending, receiving method of a kind of business datum and device, it is possible to while increasing coverage radius of cell, be effectively ensured the receptivity of business datum.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, embodiments of the invention provide the sending method of a kind of business datum, including:
Determine and send the spatial data number that business datum adopts；
According to the described spatial data number determined, being sent at least twice transmission repeatedly and in described repeatedly transmission of the described business datum by a radio frames, the same data symbol of described business datum is mapped in different spatial data.
On the other hand, embodiments of the invention provide the method for reseptance of a kind of business datum, including:
Receiving business datum, described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Obtain the transmission times of spatial data number and the described business datum adopted when described business datum sends；
Spatial data number according to described acquisition and transmission times, demodulate and/or decode the business datum of described reception.
Another aspect, embodiments of the invention provide the dispensing device of a kind of business datum, including:
Determine unit, send, for determining, the spatial data number that business datum adopts；
Transmitting element, for according to the described spatial data number determining that unit is determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data.
Another further aspect, embodiments of the invention provide the reception device of a kind of business datum, including:
Receiving unit, be used for receiving business datum, described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Acquiring unit, for obtaining the transmission times of spatial data number and the described business datum adopted when described business datum sends；
Processing unit, for the spatial data number obtained according to described acquiring unit and transmission times, demodulates and/or decodes the business datum that described reception unit receives.
The sending method of business datum, method of reseptance, dispensing device and the reception device that the embodiment of the present invention provides, on the one hand, when dispensing device sends business datum, repeat to send business datum repeatedly by a radio frames so that receive device and can effectively obtain the power gain of business datum；On the other hand, repeatedly send in the process of business datum at dispensing device, the same data symbol making described business datum at least twice transmission is mapped in different spatial data, owing to the channel quality that different spatial data is corresponding is different, the same data symbol of described business datum is mapped in different spatial data, avoid the situation that same data symbol only depends on the channel quality of a spatial data, the receptivity of same data symbol depends on the channel quality of different spatial data, can there is average effect, that is, for same data symbol, receive device and can effectively obtain diversity gain.Therefore, while increasing coverage radius of cell, even if not changing original transmitting power, still can effectively ensure that the receptivity of business datum.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below the accompanying drawing used required for embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of IEEE802.11 system physical layer radio frames；
The flow chart of the sending method of the business datum that Fig. 2 provides for the embodiment of the present invention；
The flow chart of the method for reseptance of the business datum that Fig. 3 provides for the embodiment of the present invention；
The structured flowchart of the dispensing device of the business datum that Fig. 4 provides for the embodiment of the present invention；
The structured flowchart receiving device of the business datum that Fig. 5 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
In the sending, receiving method of the business datum that the embodiment of the present invention provides, adopt multiple spatial data streaming service data, in order to make those skilled in the art be better understood from technical scheme, first to spatial data and adopt the data transmission procedure of multiple spatial data to briefly introduce.
Spatial data number can be understood as the data amount check of energy parallel transmission simultaneously.Illustrate, assume that transmitting terminal has T transmitting antenna (or T transmitting chain), and spatial data number is k, this k is sent according to by T transmitting chain, need first k to be transformed into T number, then the T number obtained after conversion is sent respectively on T transmitting chain.Wherein k is become the process of T number and call precoding processing (Precoding).Generally, k is become the precoding processing process of T number as follows:
First, k is write as vector form:
K=trans{ [x (0), x (1) ..., x (k-1)] }, wherein, the transposition of trans{} representing matrix or vector；
Then, the matrix W using T row k row is multiplied by K and obtains a vector comprising T number:
Y=trans{ [y (0), y (1) ..., y (T-1)] }=WK
Thus, just k is become T number.Generally, matrix W is referred to as pre-coding matrix (PrecodingMatrix).
If matrix W=[w (0), w (2) ..., w (k-1)], wherein w (i) is the column vector of T for dimension or length.Now, decomposing comes sees, Y=x (0) w (0)+x (1) w (1)+...+x (k-1) w (k-1).When being typically in describing, meeting calls first spatial data (layer1) the first row w's (0) of corresponding pre-coding matrix W, corresponding secondary series w (1) be called second spatial data (layer2), the like.Data x (0) is referred to as and is mapped in first spatial data, and data x (1) is referred to as and is mapped in second spatial data, by that analogy.
Assume that receiving terminal has R reception antenna (reception chain), the channel that T transmitting chain of transmitting terminal receives interchain to receiving terminal R is H, wherein H is the matrix of R row T row, i-th is classified as i-th launches chain to R reception chain channel fading coefficient respectively, and T transmitting chain of jth behavior arrives jth respectively and receive the channel fading coefficient of chain.The data Y that transmitting terminal sends after channel, the vector that data that R reception chain of receiving terminal receives form
Y '=trans{ [y ' (0), y ' (1), ..., y ' (R-1)] }=HY=HWK=x (0) [Hw (0)]+x (1) [Hw (1)]+...+x (k-1) [Hw (k-1)]
Wherein, the data that y ' (i) receives for i-th reception antenna.
It should be noted that the pre-coding matrix W not used in the same time changes according to channel situation, and, spatial data number k can also be change.Transmitting terminal can select a suitable pre-coding matrix to improve the transmission performance of data according to channel situation.
Receiving terminal is only it is to be understood that transmitting terminal have sent a few layer data, i.e. spatial data number, and matrix H W corresponding to these spatial data or each spatial data decompose column vector [Hw (i)] corresponding when coming, just can demodulate and/or decode the data x (0) obtaining actual transmission, ..., x (k-1).
For the communication system adopting IEEE802.11 serial protocols, radio frames is briefly described.In the communication system of IEEE802.11 serial protocols, physical layer radio frames substantially can be divided into control part and business datum part, as it is shown in figure 1, business datum part refers mainly to the Data part in figure, and control part refers in figure the general name of other all parts beyond Data.Controlling in part, Short Training field X-STF (shorttrainingfield), including original L (legacy)-STF, high-throughput HT (HighThroughput)-STF, it is mainly used in support time and Frequency Synchronization, and automatic growth control AGC (AutomaticGainControl) adjustment etc.；Long training field X-LTF (longtrainingfield), is mainly used in supporting channel estimating including L-LTF, HT-LTF, naturally it is also possible to further support to synchronize；Control signaling field X-SIG (ThroughputSignalfield), including L-SIG, HT-SIG) it is mainly used in instruction the data volume size of business datum part, modulation coding mode, the information such as the transmission processing method adopted.
The spatial data number that transmitting terminal sends can inform receiving terminal in the control part of radio frames, for instance, carry in X-SIG, and matrix H or HW can be obtained in conjunction with some information of notice in control part by channel estimating or channel estimating.
Based on above-mentioned introduction, below the sending, receiving method of the business datum that the embodiment of the present invention provides is described in detail.
As in figure 2 it is shown, the sending method of the business datum of embodiment of the present invention offer, comprise the following steps:
Step 11, it is determined that send the spatial data number that business datum adopts.
Concrete, transmitting terminal can determine described spatial data number according to channel situation, it is also possible to determines described spatial data number according to presetting.
Step 12, according to the described spatial data number determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data.
In this step, after transmitting terminal determines spatial data number, adopt and repeat to send described business datum repeatedly by a radio frames, such as, described business datum is replicated after repeatedly, be transmitted by a radio frames, and business datum is positioned at business datum part and the Data part of described radio frames, it is to say, the Data part of this radio frames has many parts of these business datums.Wherein, the transmission times of described business datum is be more than or equal to 2 times, and this number of times can be set in advance, it is also possible to being that transmitting terminal is determined according to channel situation, this is not limited by the present invention.
In the embodiment of the present invention, send described business datum repeatedly by a radio frames, and at least twice transmission in this repeatedly sends, the same data symbol of described business datum is mapped in different spatial data.Illustrate, to send business datum by single carrier, the transmission times of described business datum is twice is example, in first time sends, certain data symbol of described business datum is mapped in the 1st spatial data, and in second time sends, in mapped 3rd spatial data of this data symbol.
Again to send business datum by single carrier, the transmission times of described business datum is three times is example, in sending at these three times, certain data symbol of business datum is respectively mapped in the 1st spatial data, in the 2nd spatial data, the 3rd spatial data, or, in sending at these three times, certain data symbol of business datum is respectively mapped in the 1st spatial data, in the 1st spatial data, the 3rd spatial data, namely, in twice transmission in sending for three times, this data symbol is mapped in different spatial data.
Especially, it should be noted that, assume that transmitting terminal sends k spatial data, in this k spatial data, k1 spatial data is had to be intended for receiving terminal 1, other k-k1 spatial data is had to be intended for receiving terminal 2, so step 12 repeat send time, the spatial data that the data symbol of the business datum of same receiving terminal be mapped to only is belonging to change in the spatial data that this receiving terminal is corresponding, namely the spatial data that the data symbol of the business datum of receiving terminal 1 be mapped to only changes in k1 spatial data of receiving terminal 1 correspondence, the spatial data that the data symbol of the business datum of receiving terminal 2 be mapped to only changes in k-k1 spatial data of receiving terminal 2 correspondence.And the spatial data streams that transmitting terminal is launched to two or more receiving terminal in the case of, similar, repeat no more here.
The sending method of the business datum that the embodiment of the present invention provides, on the one hand, when transmitting terminal sends business datum, repeat to send business datum repeatedly by a radio frames, therefore, receiving terminal can join together the business datum repeatedly sent to demodulate, therefore, it is possible to effectively obtain the power gain of business datum；On the other hand, transmitting terminal is in the process repeatedly sending business datum, the same data symbol making described business datum at least twice transmission is mapped in different spatial data, owing to the channel quality that different spatial data is corresponding is different, the same data symbol of described business datum is mapped in different spatial data, avoid the situation that same data symbol only depends on the channel quality of a spatial data, the receptivity of same data symbol depends on the channel quality of different spatial data, and all very poor probability of the channel quality of different spatial data is less, that is, same data symbol is mapped to different spatial data and uploads delivery of energy and enough make receiving terminal effectively obtain diversity gain.Therefore, while increasing coverage radius of cell, even if not changing original transmitting power, still can effectively ensure that the receptivity of business datum.It is to say, adopt the sending method of the business datum of embodiment of the present invention offer, it is possible to increase coverage radius of cell, be effectively ensured the receptivity of business datum simultaneously.
Need further exist for illustrating, in existing communication system, for instance LTE, IEEE802.11n, IEEE802.11ah etc., all adopt OFDM modulation to send.Ofdm system is divided into multiple subcarrier (Subcarrier) whole system bandwidth (SystemBandwidth).Using the duration of an OFDM symbol as elementary cell on time, generally the duration of OFDM symbol is divided into reciprocal relation with adjacent two sub-intercarriers.So, from ofdm system on the whole, it has been cut into block the time, frequency has also been cut into block.Single from the time, one temporal piece comprises multiple subcarrier；Single frequency, the block in a frequency is distributed in multiple OFDM symbol.In an ofdm system, each subcarrier can support multiple spatial data streaming.Certainly, the transmitting antenna corresponding due to each subcarrier is generally different to the channel of reception antenna, so the maximum space data stream number that each subcarrier can be supported is likely to difference.For simplified system, when adopting multiple spatial data to carry out data transmission, generally adopting the spatial data streams of equivalent number on all subcarriers of the currently practical use of system, such as, the spatial data number of selection is the minimum number that all subcarriers can be supported.
Using multiple subcarriers to send under the scene of business datum, in " the same data symbol of described business datum is mapped in different spatial data " described in step 12, " different spatial data " including:
The different spatial data of identical subcarrier, for instance, the 1st spatial data of subcarrier a and the 2nd spatial data of subcarrier a；
The identical spatial data of different subcarriers, for instance, the 1st spatial data of subcarrier a and the 1st spatial data of subcarrier b；Or,
The different spatial data of different subcarriers, for instance, the 1st spatial data of subcarrier a and the 2nd spatial data of subcarrier b.
Preferably, send under the scene of business datum using multiple subcarriers, in step 12, at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in the identical or different spatial data of different sub carrier.
For the transmission times of described business datum for twice, certain data symbol of business datum, when first time sends, is mapped in the 1st spatial data of subcarrier a of OFDM symbol A；When second time sends, being mapped in the 3rd spatial data of subcarrier b of OFDM symbol B, wherein a can be identical with b, it is also possible to different.
Concrete, the data symbol transmitted in one radio frames, when each subcarrier k is according to streaming, these data symbols can be divided into k according to symbol one group, then each group is mapped in the different sub carrier of OFDM symbol, and the data symbol of same group is mapped to same OFDM symbol same subcarrier k spatial data on transmission.
Such as, first time transmission is by [a-1, a-2, ..., a-f] Sequential Mapping is to the subcarrier of an OFDM symbol, during second time sends, can with on the Sequential Mapping of certain cyclic shift to the subcarrier of another OFDM symbol, such as press [a-m, a-{m+1} ..., a-f, a-1 ..., a-{m-1}] Sequential Mapping to the subcarrier of another OFDM symbol；Later repeats transmission, by that analogy.Wherein a-i represents the group of data symbols comprising k evidence.
Same data symbol repeats to be mapped in different sub carrier when sending and send be good.Channel in different sub carrier is different, to business datum repeatedly send when sending every time, same data symbol or symbols are put in different sub carrier in frequency, namely have passed through different channels to be transmitted, in statistics, the all very poor probability of different channels reduces, therefore, it is possible to make receiving terminal effectively obtain frequency diversity gain.It is effectively ensured the receptivity of business datum further.
Optionally, in one embodiment of the invention, the sending method of described business datum may also include that
The information of the information sending the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum, so that the information of the information of spatial data number that adopts when sending according to the described business datum of described instruction of receiving terminal and/or the transmission times that indicates described business datum, obtain transmitting terminal and send spatial data number and the transmission times that business datum adopts, thus according to transmitting terminal being sent spatial data number and the transmission times that business datum adopts, and acquire the data of actual transmission.
According to known above, radio frames includes controlling part and business datum part, business datum is positioned at the business datum part of described radio frames, therefore, optionally, transmitting terminal can by the information of the information of the spatial data number controlling to adopt when part sends instruction described business datum transmission of the radio frames of the described business datum of transmission and/or the transmission times indicating described business datum, the information of the information of spatial data number being about to indicate described business datum to adopt when sending and/or the transmission times indicating described business datum is carried on the control part of this radio frames, such as, for IEEE802.11 communication system, can carry in the X-SIG of radio frames, so, receiving terminal receives and demodulates the information of the spatial data number that this control part just would know that described business datum adopts when sending and/or indicates the transmission times of described business datum.
Understandable, for receiving terminal, spatial data number or transmission times that the described business datum of transmitting terminal transmission adopts may each be set in advance, at this moment, avoid the need for transmitting terminal and above-mentioned information is informed to receiving terminal, receiving terminal according to presetting, can obtain and send spatial data number or the transmission times that described business datum adopts.
Corresponding with the sending method of aforementioned business datum, the embodiment of the present invention provides again the method for reseptance of a kind of business datum, as it is shown on figure 3, comprise the following steps:
Step 21, receives business datum, and described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data.
Concrete; for adopting the communication system of OFDM access technology; receiving terminal is when receiving the signal of communication of transmitting terminal; all signals all would generally be received; then on whole running time-frequency resource, find the physical resource position carrying oneself data, and data are demodulated and/or decode the information obtaining oneself on which.
Optionally, using multiple subcarriers to send under the scene of business datum at transmitting terminal, described different spatial data includes:
The different spatial data of the different spatial data of identical subcarrier, the identical spatial data of different subcarriers or different subcarriers.
Step 22, obtains the transmission times of spatial data number and the described business datum adopted when described business datum sends.
How receiving terminal is obtained the transmission times of spatial data number and the described business datum adopted when described business datum sends by the embodiment of the present invention does not limit, receiving terminal can by the notice of transmitting terminal, the above-mentioned information of instruction acquisition of information that such as transmitting terminal sends, it is also possible to according to presetting the above-mentioned information of acquisition.
Step 23, according to the spatial data number of described acquisition and transmission times, demodulates and/or decodes the business datum of described reception.
Multiple subcarriers are used to send the scene of business datum for transmitting terminal, concrete, in this step, receiving terminal is by the spatial data number according to described acquisition and transmission times, and determines that different pieces of information symbol is in which spatial data on which subcarrier when sending every time according to rule set in advance.Rule set in advance is such as, by [x0 in first time transmission, x1 ... _ k-1}] it is mapped to the 1st in order to kth spatial data, by [x_i in second time transmission, x_{i+1}, ...., x_{k-1}, x0, ..., x_{i-1}] it is mapped to the 1st in order to kth spatial data.Thus, receiving terminal can take out joint demodulation and/or decoding the same data symbol in the transmission every time in repeatedly sending.
The method of reseptance of the business datum that the embodiment of the present invention provides, on the one hand, when transmitting terminal sends business datum, repeat to send business datum repeatedly, therefore, receiving terminal can join together the business datum repeatedly sent to demodulate, therefore, it is possible to effectively obtain the power gain of business datum；On the other hand, transmitting terminal is in the process repeatedly sending business datum, the same data symbol making described business datum at least twice transmission is mapped in different spatial data, owing to the channel quality that different spatial data is corresponding is different, the same data symbol of described business datum is mapped in different spatial data, avoid the situation that same data symbol only depends on the channel quality of a spatial data, the receptivity of same data symbol depends on the channel quality of different spatial data, and all very poor probability of the channel quality of different spatial data is less, that is, same data symbol is mapped to different spatial data and uploads delivery of energy and enough make receiving terminal effectively obtain diversity gain.Therefore, while increasing coverage radius of cell, even if not changing original transmitting power, still can effectively ensure that the receptivity of business datum.Adopt the method for reseptance of the business datum of embodiment of the present invention offer, it is possible to increase coverage radius of cell, be effectively ensured the receptivity of business datum simultaneously.
Further, in one embodiment of the invention, the method for reseptance of described business datum may also include that
The information of the information receiving the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
Optionally, this step is concretely:
The information of the information controlling spatial data number that part sends, that indicate described business datum to adopt when sending receiving the radio frames by sending described business datum and/or the transmission times indicating described business datum, such as, for IEEE802.11 communication system, above-mentioned information can be carried in the X-SIG of radio frames.
So, in step 22, receiving terminal according to the information of the information of spatial data number that receive, that indicate described business datum to adopt when sending and/or the transmission times indicating described business datum, can obtain the spatial data number and/or transmission times that adopt when described business datum sends.
Optionally, receiving terminal can receive the information of the spatial data number indicating described business datum to adopt when sending, in step 22, the information of the spatial data number that the instruction described business datum according to described reception adopts when sending, obtain the spatial data number adopted when described business datum sends, and according to presetting the transmission times obtaining described business datum.
Receiving terminal can also receive the information of the transmission times indicating described business datum, in step 22, the information of the transmission times indicating described business datum according to described reception, obtain the transmission times of described business datum, and according to presetting, obtain the spatial data number adopted when described business datum sends.
Or, receiving terminal can also receive the information of the spatial data number indicating described business datum to adopt when sending and the information of the transmission times of the described business datum of instruction, in step 22, the information of the information of the spatial data number that the instruction described business datum according to described reception adopts when sending and the transmission times of the described business datum of instruction, obtains the transmission times of spatial data number and the described business datum adopted when described business datum sends.
Corresponding with the sending method of aforementioned business datum, the embodiment of the present invention provides again the dispensing device of a kind of business datum, as the transmitting terminal of business datum, as shown in Figure 4, and including:
Determine unit 100, send, for determining, the spatial data number that business datum adopts；
Transmitting element 101, for according to the spatial data number determining that unit 100 is determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data.
The dispensing device of the business datum that the embodiment of the present invention provides, on the one hand, when transmitting element 101 sends business datum, repeat to send business datum repeatedly, therefore, receiving terminal can join together the business datum repeatedly sent to demodulate, therefore, it is possible to effectively obtain the power gain of business datum；On the other hand, transmitting element 101 is in the process repeatedly sending business datum, the same data symbol making described business datum at least twice transmission is mapped in different spatial data, owing to the channel quality that different spatial data is corresponding is different, the same data symbol of described business datum is mapped in different spatial data, avoid the situation that same data symbol only depends on the channel quality of a spatial data, the receptivity of same data symbol depends on the channel quality of different spatial data, and all very poor probability of the channel quality of different spatial data is less, that is, same data symbol is mapped to different spatial data and uploads delivery of energy and enough make receiving terminal effectively obtain diversity gain.Therefore, while increasing coverage radius of cell, even if not changing original transmitting power, still can effectively ensure that the receptivity of business datum.It is to say, the dispensing device of the business datum of embodiment of the present invention offer, it is possible to increase coverage radius of cell, be effectively ensured the receptivity of business datum simultaneously.
Optionally, adopting multiple subcarrier to send under the scene of business datum at transmitting element 101, described different spatial data includes:
The different spatial data of the different spatial data of identical subcarrier, the identical spatial data of different subcarriers or different subcarriers.
Further, in one embodiment of the invention, transmitting element 101 is additionally operable to:
The information of the information sending the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
Concrete, dispensing device 101 sends the information of the spatial data number indicating described business datum to adopt when sending for the part that controls of the radio frames by sending described business datum and/or indicates the information of transmission times of described business datum.
Corresponding with the method for reseptance of aforementioned business datum, the embodiment of the present invention provides again the reception device of a kind of business datum, as the receiving terminal of business datum, as it is shown in figure 5, include:
Receiving unit 200, be used for receiving business datum, described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Acquiring unit 201, for obtaining the transmission times of spatial data number and the described business datum adopted when described business datum sends；
Processing unit 202, receives, for the spatial data number obtained according to acquiring unit 201 and transmission times, demodulation and/or decoding, the business datum that unit 200 receives.
Optionally, adopting multiple subcarriers to send under the scene of business datum at business datum transmitting terminal, described different spatial data includes:
The different spatial data of the different spatial data of identical subcarrier, the identical spatial data of different subcarriers or different subcarriers.
Further, in one embodiment of the invention, receive unit 200 to be additionally operable to:
The information of the information receiving the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
Concrete, receive unit 200 and receive the information controlling spatial data number that part sends, that indicate described business datum to adopt when sending of radio frames by sending described business datum and/or indicate the information of transmission times of described business datum.
Optionally, in one embodiment of the invention, receive unit 200 specifically for: receive the information of spatial data number indicating described business datum to adopt when sending；And acquiring unit 201 specifically for: according to receiving the information of spatial data number indicating described business datum to adopt when sending that unit 200 receives, obtain the spatial data number adopted when described business datum sends；According to presetting, obtain the transmission times of described business datum；
Optionally, in one embodiment of the invention, receive unit 200 specifically for: receive the information of transmission times indicating described business datum；And acquiring unit 201 specifically for: according to receiving the information of transmission times indicating described business datum that unit 200 receives, obtain the transmission times of described business datum；According to presetting, obtain the spatial data number adopted when described business datum sends.
Optionally, in one embodiment of the invention, receive unit 200 specifically for: receive the information of spatial data number indicating described business datum to adopt when sending and the information of the transmission times indicating described business datum；Acquiring unit 201 specifically for: according to receiving the information of spatial data number indicating described business datum to adopt when sending that unit 200 receives and the information of the transmission times indicating described business datum, obtain the transmission times of spatial data number and the described business datum adopted when described business datum sends.
One of ordinary skill in the art will appreciate that: all or part of flow process realizing said method embodiment can be completed by the hardware that computer program instructions is relevant, aforesaid program can be stored in a computer read/write memory medium, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CDs.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (14)
1. the sending method of a business datum, it is characterised in that including:
Determine and send the spatial data number that business datum adopts；
According to the described spatial data number determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Described different spatial data includes:
The different spatial data of different subcarriers；
Wherein, the spatial data that the data symbol of the business datum of same receiving terminal be mapped to only is belonging to change in the spatial data that this receiving terminal is corresponding.
2. sending method according to claim 1, it is characterised in that described sending method also includes:
The information of the information sending the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
3. sending method according to claim 2, it is characterised in that described transmission indicates the information of the information of spatial data number that described business datum adopts when sending and/or the transmission times indicating described business datum to include:
Information by the information of the spatial data number controlling to adopt when part sends and indicates the transmission of described business datum of described radio frames and/or the transmission times indicating described business datum.
4. the method for reseptance of a business datum, it is characterised in that including:
Receiving business datum, described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Obtain the transmission times of spatial data number and the described business datum adopted when described business datum sends；
Spatial data number according to described acquisition and transmission times, demodulate and/or decode the business datum of described reception；
Described different spatial data includes:
The different spatial data of different subcarriers；
Wherein, the spatial data that the data symbol of the business datum of same receiving terminal be mapped to only is belonging to change in the spatial data that this receiving terminal is corresponding.
5. method of reseptance according to claim 4, it is characterised in that described method also includes:
The information of the information receiving the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
6. method of reseptance according to claim 5, it is characterised in that described reception indicates the information of the information of spatial data number that described business datum adopts when sending and/or the transmission times indicating described business datum to include:
The information of the information receiving spatial data number that the control part by described radio frames sends, that indicate described business datum to adopt when sending and/or the transmission times indicating described business datum.
7. method of reseptance according to claim 5, it is characterised in that
The described information receiving the information of spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum includes:
Receive the information of the spatial data number indicating described business datum to adopt when sending；
Spatial data number and the transmission times of described business datum that then described acquisition described business datum adopts when sending include:
The information of the spatial data number that the instruction described business datum according to described reception adopts when sending, obtains the spatial data number adopted when described business datum sends；
According to presetting, obtain the transmission times of described business datum；
Or
The described information receiving the information of spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum includes:
Receive the information of the transmission times indicating described business datum；
Spatial data number and the transmission times of described business datum that then described acquisition described business datum adopts when sending include:
The information of the transmission times indicating described business datum according to described reception, obtains the transmission times of described business datum；
According to presetting, obtain the spatial data number adopted when described business datum sends；
Or
The described information receiving the information of spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum includes:
The information of the information receiving the spatial data number indicating described business datum to adopt when sending and the transmission times indicating described business datum；
Spatial data number and the transmission times of described business datum that then described acquisition described business datum adopts when sending include:
The information of the information of the spatial data number that the instruction described business datum according to described reception adopts when sending and the transmission times of the described business datum of instruction, obtains the transmission times of spatial data number and the described business datum adopted when described business datum sends.
8. the dispensing device of a business datum, it is characterised in that including:
Determine unit, send, for determining, the spatial data number that business datum adopts；
Transmitting element, for according to the described spatial data number determining that unit is determined, send described business datum repeatedly by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Described different spatial data includes:
The different spatial data of different subcarriers；
Wherein, the spatial data that the data symbol of the business datum of same receiving terminal be mapped to only is belonging to change in the spatial data that this receiving terminal is corresponding.
9. dispensing device according to claim 8, it is characterised in that described transmitting element is additionally operable to:
The information of the information sending the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
10. dispensing device according to claim 9, it is characterised in that described dispensing device specifically for:
Information by the information of the spatial data number controlling to adopt when part sends and indicates the transmission of described business datum of described radio frames and/or the transmission times indicating described business datum.
11. the reception device of a business datum, it is characterised in that including:
Receiving unit, be used for receiving business datum, described business datum is repeatedly sent by a radio frames, and at least twice transmission in described repeatedly transmission, the same data symbol of described business datum is mapped in different spatial data；
Acquiring unit, for obtaining the transmission times of spatial data number and the described business datum adopted when described business datum sends；
Processing unit, for the spatial data number obtained according to described acquiring unit and transmission times, demodulates and/or decodes the business datum that described reception unit receives；
Described different spatial data includes:
The different spatial data of different subcarriers；
Wherein, the spatial data that the data symbol of the business datum of same receiving terminal be mapped to only is belonging to change in the spatial data that this receiving terminal is corresponding.
12. reception device according to claim 11, it is characterised in that described reception unit is additionally operable to:
The information of the information receiving the spatial data number indicating described business datum to adopt when sending and/or the transmission times indicating described business datum.
13. reception device according to claim 12, it is characterised in that described reception unit specifically for:
The information of the information receiving spatial data number that the control part by described radio frames sends, that indicate described business datum to adopt when sending and/or the transmission times indicating described business datum.
14. reception device according to claim 12, it is characterised in that
Described reception unit specifically for: receive the information of spatial data number indicating described business datum to adopt when sending；
Described acquiring unit specifically for:
Information according to the spatial data number indicating described business datum to adopt when sending that described reception unit receives, obtains the spatial data number adopted when described business datum sends；
According to presetting, obtain the transmission times of described business datum；
Or
Described reception unit specifically for: receive the information of transmission times indicating described business datum；
Described acquiring unit specifically for:
Information according to the transmission times indicating described business datum that described reception unit receives, obtains the transmission times of described business datum；
According to presetting, obtain the spatial data number adopted when described business datum sends；
Or
Described reception unit specifically for: receive the information of spatial data number indicating described business datum to adopt when sending and the information of the transmission times indicating described business datum；
Described acquiring unit specifically for:
The information of the information of the spatial data number that the instruction described business datum according to the reception of described reception unit adopts when sending and the transmission times of the described business datum of instruction, the spatial data number adopted when obtaining the transmission of described business datum and the transmission times of described business datum.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110369431.1A CN103124209B (en) | 2011-11-18 | 2011-11-18 | The sending, receiving method of business datum and device |
| PCT/CN2012/084798 WO2013071887A1 (en) | 2011-11-18 | 2012-11-19 | Method and apparatus for service data transmission and reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110369431.1A CN103124209B (en) | 2011-11-18 | 2011-11-18 | The sending, receiving method of business datum and device |
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| CN103124209A CN103124209A (en) | 2013-05-29 |
| CN103124209B true CN103124209B (en) | 2016-06-29 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874183A (en) * | 2005-05-31 | 2006-12-06 | 株式会社东芝 | Wireless packet transmitting device and method using a plurality of antennas |
| CN101167265A (en) * | 2005-04-26 | 2008-04-23 | 科胜讯系统公司 | Systems and methods for transmitter diversity expansion |
| CN101541070A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Emission method and device of multi-antenna system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7715855B2 (en) * | 2004-01-12 | 2010-05-11 | Qualcomm Incorporated | Method and apparatus optimizing receipt of call/broadcast paging messages by self-powered wireless communications devices |
| US20110075630A1 (en) * | 2009-09-25 | 2011-03-31 | Eilon Riess | Enabling inter frequency assignment scanning while remaining at one frequency |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167265A (en) * | 2005-04-26 | 2008-04-23 | 科胜讯系统公司 | Systems and methods for transmitter diversity expansion |
| CN1874183A (en) * | 2005-05-31 | 2006-12-06 | 株式会社东芝 | Wireless packet transmitting device and method using a plurality of antennas |
| CN101541070A (en) * | 2009-04-27 | 2009-09-23 | 中兴通讯股份有限公司 | Emission method and device of multi-antenna system |
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| WO2013071887A1 (en) | 2013-05-23 |
| CN103124209A (en) | 2013-05-29 |
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