CN102215055A - Method and device for sending data - Google Patents
Method and device for sending data Download PDFInfo
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- CN102215055A CN102215055A CN2011101525785A CN201110152578A CN102215055A CN 102215055 A CN102215055 A CN 102215055A CN 2011101525785 A CN2011101525785 A CN 2011101525785A CN 201110152578 A CN201110152578 A CN 201110152578A CN 102215055 A CN102215055 A CN 102215055A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
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Abstract
The invention discloses a method and a device for sending data. The method comprises the following steps: configuring a plurality of antennas for a single-cell in a CDMA (code division multiple access) system; loading the same data on the plurality of antennas; and sending the data. According to the invention, the problem of ideal covering effects of the edge of a cell or cells with complex geographic environments caused by networking by a single-antenna mode in the relevant technology can be solved, and the covering effects are ensured, thus the business quality is ensured.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method for uplink and device.
Background technology
In traditional cdma network, adopt the mode networking of single-antenna transmission usually, it disposes simple, and cost is low.
But for the sub-district of cell edge or some geographical environment complexity, the coverage effect of single transmit antenna is not ideal enough.For example, if run into shelter in the dissemination channel approach, then the single antenna signal meets with deep fade, covers the instantaneous variation of meeting, and the quality of service that provides in these zones also can be affected simultaneously.
Summary of the invention
The unfavorable problem of coverage effect of the cell edge that causes at the mode networking of single antenna in the correlation technique or the sub-district of some geographical environment complexity and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of data transmission method for uplink and device, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of data transmission method for uplink.
Data transmission method for uplink according to the present invention comprises: in cdma system, be the many strip antennas of single cell configuration; On many strip antennas, load identical data; Send data.
Preferably, before sending data, said method also comprises: the transmitting power of adjusting the every strip antenna in many strip antennas.
Preferably, the transmitting power of adjusting the every strip antenna in many strip antennas comprises: receive the wireless link information on the every strip antenna in many strip antennas, wherein wireless link information comprises one of following: the forward direction power control commands of terminal to report, the situation of change of base station forward emitting power; According to wireless link information, adjust the transmitting power of the every strip antenna in many strip antennas.
Preferably, according to wireless link information, the transmitting power of adjusting the every strip antenna in many strip antennas comprises: wireless link information and the last wireless link information that receives are compared; If the comparative result indication promotes transmitting power, then reduce the transmitting power of the antenna of comparative result correspondence; If the comparative result indication reduces transmitting power, then promote the transmitting power of the antenna of comparative result correspondence.
Preferably, before the wireless link information on the every strip antenna in receiving many strip antennas, said method also comprises: load identical data on the every strip antenna in many strip antennas; Use predefined initial power to send loaded data.
Preferably, the transmitting power sum of the every strip antenna in many strip antennas is no more than the maximum transmission power of single little area carrier, and the transmitting power of the every strip antenna in many strip antennas all is no more than the maximum transmission power of this strip antenna configuration.
Preferably, comprise for the many strip antennas of single cell configuration: the correlation that reduces many strip antennas.
Preferably, the correlation that reduces many strip antennas comprises: the every strip antenna that disposes in many strip antennas is orthogonal.
Preferably, the correlation that reduces many strip antennas comprises: the horizontal range that disposes between any two strip antennas in many strip antennas is the distance of wavelength level.
To achieve these goals, according to another aspect of the present invention, provide a kind of data sending device.
Data sending device according to the present invention comprises: configuration module, be used at cdma system, and be the many strip antennas of single cell configuration; Load-on module is used for loading identical data on many strip antennas; Transmitter module is used to send data.
By the present invention, adopt the mode networking of many antennas, when the coverage effect of certain bar in these many antennas or a few strip antennas was undesirable, other antenna can also guarantee coverage effect, thereby guaranteed quality of 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 flow chart according to the data transmission method for uplink of the embodiment of the invention;
Fig. 2 is the flow chart of data transmission method for uplink according to the preferred embodiment of the invention;
Fig. 3 is the flow chart of adjudicating according to the preferred embodiment of the invention;
Fig. 4 is the structured flowchart according to the data sending device of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
The invention provides a kind of data transmission method for uplink.Fig. 1 is the flow chart according to the data transmission method for uplink of the embodiment of the invention, as shown in Figure 1, comprises that following step S102 is to step S106.
Step S102 in cdma system, is the many strip antennas of single cell configuration.
Step S104 loads identical data on many strip antennas.
Step S106 sends data.
Usually adopt the mode networking of single antenna in the correlation technique, can cause the coverage effect of sub-district of cell edge or some geographical environment complexity undesirable.In the embodiment of the invention, adopt the mode networking of many antennas, when the coverage effect of certain bar in these many antennas or a few strip antennas was undesirable, other antenna can also guarantee coverage effect, thereby guaranteed quality of service.
Preferably, before sending data, said method also comprises: the transmitting power of adjusting the every strip antenna in many strip antennas.
In this preferred embodiment, distribute transmitting power, can all the time more power division be given channel quality antenna preferably, thereby the signal quality of communication link is maintained level relatively preferably based on channel quality.
Preferably, the transmitting power of adjusting the every strip antenna in many strip antennas comprises: receive the wireless link information on the every strip antenna in many strip antennas, wherein wireless link information comprises one of following: the forward direction power control commands of terminal to report, the situation of change of base station forward emitting power; According to wireless link information, adjust the transmitting power of the every strip antenna in many strip antennas.
In this preferred embodiment, distribute transmitting power based on wireless link information that can the indicating channel quality, implementation is simple, reliable.
Preferably, according to wireless link information, the transmitting power of adjusting the every strip antenna in many strip antennas comprises: wireless link information and the last wireless link information that receives are compared; If the comparative result indication promotes transmitting power, then reduce the transmitting power of the antenna of comparative result correspondence; If the comparative result indication reduces transmitting power, then promote the transmitting power of the antenna of comparative result correspondence.
This preferred embodiment describes how to guarantee the more power division of channel quality antenna acquisition preferably in detail, and implementation is simple, reliable.
Preferably, before the wireless link information on the every strip antenna in receiving many strip antennas, said method also comprises: load identical data on the every strip antenna in many strip antennas; Use predefined initial power to send loaded data.
Preferably, the transmitting power sum of the every strip antenna in many strip antennas is no more than the maximum transmission power of single little area carrier, and the transmitting power of the every strip antenna in many strip antennas all is no more than the maximum transmission power of this strip antenna configuration.
Preferably, comprise for the many strip antennas of single cell configuration: the correlation that reduces many strip antennas.
In the correlation technique, the Rake reception technique can separate each multipath component, to the correction of delaying time of every footpath, and then merges demodulation, thereby interfering with each other between each multipath component can be converted into the multipath gain.For the CDMA multiaerial system, if the change in signal strength of all multipath components all identical or close (being that correlation is higher), all multipath components decline simultaneously or strengthen simultaneously, so every footpath is separated, proofreaies and correct, remerged, the improvement of quality to received signal is also not obvious, can not produce tangible multipath gain.Therefore, in embodiments of the present invention, reduce the correlation of many strip antennas, can realize the signal independent variation, and make that the rake gain of receiving terminal is more obvious.
Preferably, the correlation that reduces many strip antennas comprises: the every strip antenna that disposes in many strip antennas is orthogonal.
Preferably, the correlation that reduces many strip antennas comprises: the horizontal range that disposes between any two strip antennas in many strip antennas is the distance of wavelength level.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
Fig. 2 is the flow chart of data transmission method for uplink according to the preferred embodiment of the invention, as shown in Figure 2, comprises that following step S202 is to step S218.
Step S202, base station system configuration transmitting antenna is for each supports the cell configuration N bar transmitting antenna of multi-antenna emission diversity technology, N＞=2.
Step S204, setup requests arrives the base station.
Step S206, base station system is carried out the call setup flow process, sends identical forward signal to the N strip antenna that is disposed simultaneously with initial power.In the concrete enforcement of call establishment, can dispose the forward link of every strip antenna correspondence in the mode of soft handover, in base station system, the pairing link of every strip antenna can be handled as the sub-district that soft handover adds.
Step S208, base station system is collected the pairing forward link information of every strip antenna.In specific implementation process, the forward direction power control commands of every link of terminal to report, perhaps the situation of change of base station forward emitting power etc. can directly or indirectly react the information that forward link changes can be as forward link information.
Step S210, whether the current power of distributing on every strip antenna is adjudicated with a kind of algorithm in the base station reasonable, whether need to adjust, and the amplitude of adjusting.The principle of algorithm design should be followed: channel quality antenna preferably obtains more power division, to realize the allocation optimum of power resource.The specific embodiment of algorithm is seen below.
Step S212, the new power control commands that will produce after the base station will be adjudicated is issued the control module of every strip antenna correspondence.
Step S214, the control module of every strip antenna correspondence is finished the execution to new power control command.The concrete execution of power control commands can be by base station system when every 20ms writes frame, and the driving API that calls baseband chip finishes the setting of new power control commands, carries out executable operations by chip.
Step S216, do not finish as calling out, the execution in step that then circulates S208 is to step S214, according to step S214, because every 20MS carries out the renewal and execution response of power control commands, promptly from analysis chain path channels quality, to drawing court verdict, to sending power control commands, carry out come into force total consuming time less than 20MS to power control commands.The speed that therefore can guarantee algorithm response is enough fast to catch up with the pace of change of wireless channel.
Step S218, end of calling.
Need to prove that the decision algorithm among the step S210 can realize in several ways, Fig. 3 just described with the power control bit of every link as the judgement of channel quality according to the time the judgement flow process.
Fig. 3 is the flow chart of adjudicating according to the preferred embodiment of the invention, as shown in Figure 3, comprises that following step S302 is to step S312.
Step S302, the forward power control bit from antenna 0 to every link of antenna N-1 of base station system parallel acquisition terminal to report.
Step S304 compares analysis with power control bit and the last power control bit that gathers that gathers at last.
Step S306, if power control bit is the power per liter indication, then this algorithmic decision is the transmitting power of falling this road antenna, if power control bit is the power per liter indication, then this algorithmic decision is for rising the transmitting power of this road antenna.
Step S308 according to the heave amplitude of the power control bit of last collection indication, decides the falling-rising amplitude of this road antenna transmitting power correspondence.
Step S310 issues this road antenna link corresponding control module with the power control adjustment order that generates.
Step S312, receive power control adjustment order by this antenna link corresponding control module after, call and drive API and carry out this power control commands.
The mentioned algorithm of step S210 also can have other embodiment, and as with every frame forward emitting power of every link judgement foundation as channel quality, its idiographic flow and above-mentioned flow process are roughly the same, repeat no more.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
The embodiment of the invention provides a kind of data sending device, and this data sending device can be used to realize above-mentioned data transmission method for uplink.Fig. 4 is the structured flowchart according to the data sending device of the embodiment of the invention, as shown in Figure 4, comprises configuration module 42, load-on module 44, transmitter module 46.Below its structure is described in detail.
Configuration module 42 is used at cdma system, is the many strip antennas of single cell configuration; Load-on module 44 is connected to configuration module 42, is used for loading on many strip antennas of configuration module 42 configurations identical data; Transmitter module 46 is connected to load-on module 44, is used to send load-on module 44 loaded data.
Need to prove that the data sending device of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, a kind of data transmission method for uplink and device are provided.By the present invention, adopt the mode networking of many antennas, when the coverage effect of certain bar in these many antennas or a few strip antennas was undesirable, other antenna can also guarantee coverage effect, thereby guaranteed quality of service.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
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 (10)
1. a data transmission method for uplink is characterized in that, comprising:
In CDMA systems, be the many strip antennas of single cell configuration;
On described many strip antennas, load identical data;
Send described data.
2. method according to claim 1 is characterized in that, before sending described data, described method also comprises: the transmitting power of adjusting the every strip antenna in described many strip antennas.
3. method according to claim 2 is characterized in that, the transmitting power of adjusting the every strip antenna in described many strip antennas comprises:
Receive the wireless link information on the every strip antenna in described many strip antennas, it is one of following that wherein said wireless link information comprises: the forward direction power control commands of terminal to report, the situation of change of base station forward emitting power;
According to described wireless link information, adjust the transmitting power of the every strip antenna in described many strip antennas.
4. method according to claim 3 is characterized in that, according to described wireless link information, the transmitting power of adjusting the every strip antenna in described many strip antennas comprises:
Described wireless link information and the last wireless link information that receives are compared;
If described comparative result indication promotes transmitting power, then reduce the transmitting power of the antenna of described comparative result correspondence;
If described comparative result indication reduces transmitting power, then promote the transmitting power of the antenna of described comparative result correspondence.
5. method according to claim 3 is characterized in that, before the wireless link information on the every strip antenna in receiving described many strip antennas, described method also comprises:
Load identical data on every strip antenna in described many strip antennas;
Use predefined initial power to send described loaded data.
6. according to each described method in the claim 2 to 5, it is characterized in that, the transmitting power sum of the every strip antenna in described many strip antennas is no more than the maximum transmission power of the little area carrier of described list, and the transmitting power of the every strip antenna in described many strip antennas all is no more than the maximum transmission power of this strip antenna configuration.
7. method according to claim 1 is characterized in that, for the many strip antennas of single cell configuration comprise: the correlation that reduces described many strip antennas.
8. method according to claim 7 is characterized in that, the correlation that reduces described many strip antennas comprises: the every strip antenna that disposes in described many strip antennas is orthogonal.
9. method according to claim 7 is characterized in that, the correlation that reduces described many strip antennas comprises: the horizontal range that disposes between any two strip antennas in described many strip antennas is the distance of wavelength level.
10. a data sending device is characterized in that, comprising:
Configuration module is used in CDMA systems, is the many strip antennas of single cell configuration;
Load-on module is used for loading identical data on described many strip antennas;
Transmitter module is used to send described data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152578.5A CN102215055B (en) | 2011-06-08 | 2011-06-08 | Data transmission method for uplink and device |
| PCT/CN2011/082876 WO2012167570A1 (en) | 2011-06-08 | 2011-11-24 | Method and apparatus for data transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110152578.5A CN102215055B (en) | 2011-06-08 | 2011-06-08 | Data transmission method for uplink and device |
Publications (2)
| Publication Number | Publication Date |
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| CN102215055A true CN102215055A (en) | 2011-10-12 |
| CN102215055B CN102215055B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110152578.5A Active CN102215055B (en) | 2011-06-08 | 2011-06-08 | Data transmission method for uplink and device |
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| Country | Link |
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| CN (1) | CN102215055B (en) |
| WO (1) | WO2012167570A1 (en) |
Cited By (2)
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| WO2012167570A1 (en) * | 2011-06-08 | 2012-12-13 | 中兴通讯股份有限公司 | Method and apparatus for data transmission |
| CN109391984A (en) * | 2017-08-10 | 2019-02-26 | 维沃移动通信有限公司 | A kind of beam switching method, mobile terminal and computer readable storage medium |
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Also Published As
| Publication number | Publication date |
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| CN102215055B (en) | 2018-02-09 |
| WO2012167570A1 (en) | 2012-12-13 |
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