CN101286788A - Method and apparatus for controlling transfer of signaling - Google Patents
Method and apparatus for controlling transfer of signaling Download PDFInfo
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- CN101286788A CN101286788A CNA2007100738909A CN200710073890A CN101286788A CN 101286788 A CN101286788 A CN 101286788A CN A2007100738909 A CNA2007100738909 A CN A2007100738909A CN 200710073890 A CN200710073890 A CN 200710073890A CN 101286788 A CN101286788 A CN 101286788A
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Abstract
The invention discloses a method for controlling signaling transmission and a device thereof. The method disclosed by the embodiment of the invention is that by adopting a mode that the long symbol of the uplink sub-frame of an Alternative frame structure is used as pilot symbols and the modified long symbol is symmetrically arranged in the Alternative frame. The number of the pilot symbols in the modified Alternative frame is increased so as to increase the user supporting number of the Alternative frame and promote the application scope of the Alternative frame while increasing the compatibility of the Alternative frame and a general frame. Meanwhile, the device for controlling the signal transmission, which is disclosed by the embodiment of the invention can realize the generation of the modified Alternative frame and the expansion of the application of the Alternative frame.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of method and device of controlling the signaling transmission.
Background technology
At third generation cooperative programme (3GPP, The 3rd Generation Partnership Project) the evolution global radio inserts (E-UTRA, Evolved Universal Terrestrial Radio Access) adopted OFDM (OFDM, Orthogonal FrequencyDivision Multiplexing) technology as multi-access mode in the downlink transfer of system.OFDM is a kind of frequency division multiplexing mode of multi-carrier communication technology.
In multi-carrier communications systems, by distributing different running time-frequency resources to realize multiuser multiplexing for different user.Concrete receiving terminal then needs upstream control signaling to notify transmitting terminal to the result of Message Processing.For efficient, correct transmission data just become vital problem to the design of controlling signaling consumption and putting position.
In the present discussion of Long Term Evolution plan (LTE, Long Term Evolution), some common recognitions have tentatively been reached with regard to upstream control signaling.Uplink ACK (ACknowledgement) channel adopts the mode of coherent demodulation to realize.Fig. 1 has shown the schematic diagram of the frame structure of general ascending pilot frequency under this mode.Under this mode, in a frame, form by the symbol of 14 long symbol length, the symbol that 6 long symbol length are wherein arranged is a frequency pilot sign, these 6 pilot tones all adopt the pilot length of 1 long symbol as correspondence, transmission adopts the coherent demodulation pattern to realize, realize 6 users of each pilot tone support according to this control signaling structure of regulation of the prior art, so a kind of like this frame structure of pilot tone can realize supporting 18 user/0.5ms.But because the Alternative frame structure of TDD is different with the uplink frame structure of previously described generic frame structure, so the subframe structure in the general scheme is not suitable for tdd mode.
For this reason, except generic frame structure above-mentioned, also has a kind of subframe structure of the Alternative of being suitable for mode among the LTE.Fig. 2 has shown the schematic diagram of the subframe structure of this Alternative of being suitable for mode.This frame structure is called as the Alternative subframe structure.Can see that in this subframe structure, each sub-frame of uplink is made up of 10 symbols, wherein the length of second and the 9th symbol is half of length of other symbols, and this symbol shorter than other symbol lengths is called as short symbol.Do not transmit data in the short symbol, only be used for placing pilot tone, its subcarrier spacing is 30KHz, is a times of long symbol carrier spacing.
When the transmitting uplink data that does not have simultaneously, upstream control signaling use reservation running time-frequency resource at lower sideband place on system bandwidth transmits among the LTE.Usually, the running time-frequency resource of reservation is the control signal resource unit of 1 Physical Resource Block (frequency domain) and 1 sub-frame length (time domain) by one or more sizes.A user's upstream control signaling transmits in an above-mentioned control signal resource unit usually, and the upstream control signaling of different user is multiplexing in the mode of code division multiplexing in identical control signal resource unit.
If frame structure shown in Figure 2 is directly used in the transmission of ACK/NACK under the Alternative frame structure, because pilot tone just is made up of two short symbols, be 180KHz calculating by each Physical Resource Block, then each pilot length of lacking the symbol support is 6.When adopting the permanent width of cloth zero auto-correlation (CAZAC, when ConstantAmplitude Zero Auto-Correlation) sequence is as the orthogonal code division pilot tone,, the requirement of channel delay expansion in length is 6 cyclic shifts of 6 CAZAC sequence, yard branch pilot tone of 3 cyclic shifts as quadrature can only be arranged because making.This makes that the interior ack channel number of supporting of 1 subframe is 6, can support 6 users' ACK.Repeat to add the mode of frequency hopping if consider the consistent also employing time with general scheme, then the number of users supported of each subframe has only 3, and the number of users support of this quantity obviously is not enough.
Summary of the invention
The main purpose of the embodiment of the invention is to provide a kind of method of controlling the signaling transmission, by the method that discloses in the employing embodiment of the invention, thereby has realized the support of Alternative subframe to the more control number of channel.
Another main purpose of the present invention is to provide a kind of device of controlling the signaling transmission, by the device that discloses in the employing embodiment of the invention, thereby has realized the support of Alternative subframe to the more control number of channel.
In order to realize the first aspect of foregoing invention purpose, the embodiment of the invention provides a kind of method of controlling the signaling transmission to comprise:
With in the sub-frame of uplink of Alternative frame structure at least 2n long symbol be revised as frequency pilot sign;
Described long symbol distributes for axial symmetry in the Alternative frame;
Described amended Alternative frame is transmitted.
In order to realize the second aspect of foregoing invention purpose, the embodiment of the invention provides a kind of device of controlling the signaling transmission, and described device comprises that the pilot tone that is used to be provided with frequency pilot sign is provided with module;
Described pilot tone is provided with module and is used to the Alternative frame that the frequency pilot sign of 2n at least of symmetry is set;
Described pilot tone is provided with module and comprises:
Submodule and symmetry judgement submodule are set;
The described submodule that is provided with is used for the non-frequency pilot sign of Alternative frame is carried out the pilot tone setting, the described non-number of pilot symbols after being provided with is sent to described symmetry judge submodule;
Described symmetry judge submodule receive described the described number of pilot symbols that submodule sends is set after, judge whether the pilot tone that is provided with is symmetrical arranged in pairs, non-symmetrically arranged in pairs, require the described submodule that is provided with to reset.
A kind of method and device of controlling the signaling transmission that embodiments of the invention provide, by in to the Alternative subframe, increasing the mode of pilot tone, realized that an Alternative subframe is to the support more than 3 above users, increased the compatibility of Alternative subframe and existing interchangeable frame, thereby realized the purpose of Alternative subframe the support of the more control number of channel.
Description of drawings
Fig. 1 is the schematic diagram of the subframe structure of general ascending pilot frequency in the prior art;
Fig. 2 is for being suitable for the schematic diagram of the subframe structure of Alternative mode in the prior art;
A kind of flow chart of controlling the method for signaling transmission of Fig. 3 for providing in the embodiment of the invention one;
Fig. 4 is for the structure chart of the Alternative subframe after the method that provides in the embodiment of the invention one is provided;
The n value is the structure chart of 2 o'clock Alternative subframe to Fig. 5 after the method that provides in the embodiment of the invention one in order to use;
Fig. 6 is provided for another that provides in the embodiment of the invention two by the flow chart of the method for signaling transmission;
Fig. 7 is for the structure chart of the Alternative subframe after the method that provides in the embodiment of the invention two is provided;
A kind of structured flowchart of controlling the device of signaling transmission of Fig. 8 for providing in the embodiment of the invention three;
Fig. 9 is provided for another that provides in the embodiment of the invention four by the structured flowchart of the device of signaling transmission.
Embodiment
For making purpose of the present invention, technical scheme and beneficial effect clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
A kind of flow chart of controlling the method for signaling transmission that Fig. 3 provides for the embodiment of the invention, this flow process comprises the steps:
S301 is used to place pilot tone with 2n long symbol at least as the frequency pilot sign in the Alternative subframe;
S302, the long symbol of modification is that axial symmetry distributes;
S303 should transmit by amended Alternative frame.
In the present embodiment with 2n long symbol as group leader's symbols, wherein n is the natural number more than or equal to 1.
Method in the present embodiment is to realize when the initialization Alternative subframe ground is revised by network equipment.
After the method for the control signaling that provides in the present embodiment is provided, increased the quantity of the frequency pilot sign in the Alternative frame, realized the support to more ack channels, number of users and generic frame structure that the Alternative frame is supported are approaching, have increased the scope of application of Alternative frame.
Fig. 4 is the structure chart of the Alternative subframe when n equals 1 after the use present embodiment method.
When the n value was 1, the symbolic blocks quantity that is used to place pilot frame in the Alternative frame became 4, and wherein 2 are short symbol, 2 is long symbol, under this kind execution mode, can support that number of users is 18/0.675ms, a little more than the situation of the following 16/0.5ms of interchangeable frame situation.
Fig. 5 has disclosed the structure of using the Altrenative subframe when n equals 2 after the present embodiment method.
In such cases, because the n value is 2, the symbolic blocks quantity that is used to place pilot frame in the Alternative frame becomes 6, wherein 2 are short symbol, 4 is long symbol, under this kind execution mode, can support that number of users is 30/0.675ms, far above the situation phase of the following 16/0.5ms of interchangeable frame situation, multi-user's situation is supported that effect is obvious.
The flow chart of the method for another control signaling transmission that Fig. 6 provides for the embodiment of the invention, this flow chart comprises the steps:
S601 is revised as non-frequency pilot sign with the short symbol that is used to place pilot tone in the Alternative subframe;
S602 is used to place pilot tone with 2n long symbol at least as the frequency pilot sign in the Alternative subframe;
S603, the long symbol of modification is that axial symmetry distributes;
S604 should transmit by amended Alternative frame.
In the present embodiment with 2n long symbol as group leader's symbols, wherein n is more than or equal to 2, the limit that long symbol is revised as frequency pilot sign is that all long symbols in the Alternative subframe all are modified to and are used for frequency pilot sign
Method in the present embodiment is to realize modification to the Alternative subframe when the initialization by network equipment.
After the method for the control signaling that provides in the present embodiment is provided, make Alternative frame and interchangeable frame similar, number of users and generic frame structure that the Alternative frame is supported are approaching, and the compatibility of Alternative frame and interchangeable frame is improved.
Fig. 7 is the structure chart of the Alternative subframe after the use present embodiment method.
A kind of structured flowchart of controlling the device of signaling transmission that Fig. 8 provides for the embodiment of the invention, this device are provided with module by the pilot tone that is used to be provided with frequency pilot sign and form;
This pilot tone is provided with module and is used to the Alternative subframe that the frequency pilot sign of 2n at least of symmetry is set;
This pilot tone is provided with module and comprises, submodule and symmetry is set judges the submodule composition;
This is provided with submodule and is used for the non-frequency pilot sign of Alternative subframe is carried out the pilot tone setting, the number of pilot symbols that is provided with is reported to this symmetry judge submodule;
After this symmetry judges that submodule receives this report that submodule is set, judge whether the pilot tone that is provided with is symmetrical arranged in pairs, non-symmetrically arranged in pairs, require this that submodule is set and reset.
The value of device n in the present embodiment is the natural number more than or equal to 1.
The structured flowchart of the device of another control signaling transmission that Fig. 8 provides for the embodiment of the invention, this device are provided with module by the pilot tone that is used to revise the modified module of pilot tone and is used to be provided with frequency pilot sign and form.
This modified module is used for the original frequency pilot sign of Alternative frame is revised as non-frequency pilot sign, amended Alternative frame is sent to pilot tone module is set;
After this pilot tone was provided with module and receives this amended Alternative subframe, for this Alternative subframe is provided with the frequency pilot sign of 2n at least of symmetry, this frequency pilot sign was formed by long symbol;
This pilot tone is provided with module and comprises, submodule and symmetry is set judges the submodule composition;
This is provided with submodule and is used for the non-frequency pilot sign of Alternative subframe is carried out the pilot tone setting, the number of pilot symbols that is provided with is reported to this symmetry judge submodule;
After this symmetry judges that submodule receives this report that submodule is set, judge whether the pilot tone more than two couple who is provided with is symmetrical arranged, non-symmetrically arranged in pairs, require this that submodule is set and reset.
The value of device n in the present embodiment is more than or equal to 2.
By the embodiment among the present invention, can realize making the more ascending control channel number of Alternative frame support, with scheme of the prior art good compatibility has been arranged again simultaneously.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.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 (9)
1, a kind of method of controlling the signaling transmission is characterized in that described method comprises:
With in the sub-frame of uplink of Alternative frame structure at least 2n long symbol be revised as frequency pilot sign;
Described long symbol distributes for axial symmetry in the Alternative frame;
Described amended Alternative frame is transmitted.
2, method according to claim 1 is characterized in that, the value of described n is 1,2,3 or 4.
3, method according to claim 1 is characterized in that, described long symbol also comprises before being revised as the frequency pilot sign step: change the short symbol of the pilot tone in the Alternative frame into non-frequency pilot sign.
4, method according to claim 3 is characterized in that, described n is the positive integer greater than 1.
According to claim 3 or 4 described methods, it is characterized in that 5, the quantity of the long symbol that can be modified in the described Alternative is exceeded with the quantity of all long symbols in sub-frame of uplink in the described Alternative frame structure.
6, a kind of device of controlling signaling transmission is characterized in that, described device comprises that the pilot tone that is used to be provided with frequency pilot sign is provided with module;
Described pilot tone is provided with module and is used to the Alternative frame that the frequency pilot sign of 2n at least of symmetry is set;
Described pilot tone is provided with module and comprises:
Submodule and symmetry judgement submodule are set;
The described submodule that is provided with is used for the non-frequency pilot sign of Alternative frame is carried out the pilot tone setting, the described non-number of pilot symbols after being provided with is sent to described symmetry judge submodule;
Described symmetry judge submodule receive described the described number of pilot symbols that submodule sends is set after, judge whether the pilot tone that is provided with is symmetrical arranged in pairs, non-symmetrically arranged in pairs, require the described submodule that is provided with to reset.
7, device according to claim 1 is characterized in that, the value of described n is 1,2,3 or 4.
8, device according to claim 6 is characterized in that, described device also comprises the modified module that is used to revise pilot tone;
Described modified module is used for the original frequency pilot sign of Alternative frame is revised as non-frequency pilot sign, amended Alternative frame is sent to described pilot tone module is set.
9, device according to claim 8 is characterized in that, described n is the positive integer greater than 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100738909A CN101286788A (en) | 2007-04-11 | 2007-04-11 | Method and apparatus for controlling transfer of signaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100738909A CN101286788A (en) | 2007-04-11 | 2007-04-11 | Method and apparatus for controlling transfer of signaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101286788A true CN101286788A (en) | 2008-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100738909A Pending CN101286788A (en) | 2007-04-11 | 2007-04-11 | Method and apparatus for controlling transfer of signaling |
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|---|---|
| CN (1) | CN101286788A (en) |
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2007
- 2007-04-11 CN CNA2007100738909A patent/CN101286788A/en active Pending
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Open date: 20081015 |