CN105120442A - Signaling information transmission method and device - Google Patents
Signaling information transmission method and device Download PDFInfo
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- CN105120442A CN105120442A CN201510417508.6A CN201510417508A CN105120442A CN 105120442 A CN105120442 A CN 105120442A CN 201510417508 A CN201510417508 A CN 201510417508A CN 105120442 A CN105120442 A CN 105120442A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
Abstract
The invention discloses a signaling information transmission method. The signaling information transmission method comprises the following steps: a user terminal generates a first training sequence carrying signaling information which carries channel state information, the user terminal encapsulates the first training sequence into a corresponding data packet, the user terminal sends the data packet to a base station so that the base state obtains the signaling information based on the first training sequence carried by the data packet and selects a corresponding pre-coding matrix according to the channel state information carried by the signaling information. The invention further discloses a signaling information transmission device. The signaling information transmission device can reduce the difficulty of signaling information transmission.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of signaling information transmission method and device.
Background technology
MIMO technique (Multiple-InputMultiple-Output, MIMO) is referred to as a key technology of Modern Communication System, by increasing wireless communication system as UMTS/HSPA, WiMAX and LTE etc. adopt.In order to the time variation of adaptive channel and the changeable requirement of user, base station use multiple pre-coding matrix utilize whole space to comprise from spatial reuse to space diversity as much as possible.Therefore, a feedback channel from user terminal to base station must be set up, with help in base station according to user terminal measurement to cqi select suitable pre-coding matrix.In this case, the signaling information carrying channel condition information is used to refer to should by the pre-coding matrix selected, but the difficulty creating new signaling channel is comparatively large, causes the difficulty of command transmitting information larger.
Summary of the invention
Main purpose of the present invention is to provide a kind of signaling information transmission method and configuration, is intended to the difficulty reducing command transmitting information.
For achieving the above object, the invention provides a kind of signaling information transmission method, described signaling information transmission method comprises:
User terminal generates the first training sequence carrying signaling information, and described signaling information carries channel condition information;
Described first training sequence is encapsulated as corresponding packet by described user terminal;
Described user terminal is by described Packet Generation to base station, and the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
Preferably, the step that the training sequence of signaling information is carried in described user terminal generation comprises:
Described user terminal obtains channel condition information, and generates signaling information based on described channel condition information;
Described signaling information is superimposed to corresponding training sequence based on default weighted factor by described user terminal, and using the training sequence after the described signaling information of superposition as described first training sequence.
Preferably, described signaling information is uncorrelated with the training sequence be applied or orthogonal.
Further, present invention also offers a kind of signaling information transmission method, described signaling information transmission method comprises:
When receiving the packet that user terminal sends, base station obtains the second training sequence that described packet carries;
Described base station obtains the signaling information that described second training sequence carries, and selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
Preferably, described when receiving the packet that user terminal sends, base station also comprises before obtaining the step of the second training sequence that described packet carries:
Described base station judges whether described second training sequence is default training sequence;
When described second training sequence is not described default training sequence, performs the signaling information that described base station described second training sequence of acquisition carries, select the step of corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
Further, present invention also offers a kind of signaling information transmitting device, described signaling information transmitting device comprises:
Generation module, for generating the first training sequence carrying signaling information, described signaling information carries channel condition information;
Package module, for being encapsulated as corresponding packet by described first training sequence;
Sending module, for by described Packet Generation to base station, the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
Preferably, described generation module comprises:
Generation unit, for obtaining channel condition information, and generates signaling information based on described channel condition information;
Superpositing unit, for being superimposed to corresponding training sequence based on default weighted factor by described signaling information, and using the training sequence after the described signaling information of superposition as described first training sequence.
Preferably, described signaling information is uncorrelated with the training sequence be applied or orthogonal.
Further, present invention also offers a kind of signaling information transmitting device, described signaling information transmitting device comprises:
First acquisition module, for receive in base station user terminal send packet time, obtain the second training sequence that described packet carries;
Second acquisition module, for obtaining the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
Preferably, described signaling information transmitting device also comprises judge module, for judging whether described second training sequence is default training sequence;
Described second acquisition module also for when described second training sequence is not described default training sequence, obtains the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
The signaling information transmission method that the present embodiment proposes, by the signaling information carrying channel condition information is modulated in training sequence, training sequence is made to carry signaling information, and the training sequence carrying signaling information is encapsulated as packet, utilize data channel by described Packet Generation to base station, after base station parses signaling information from packet, the channel condition information carried according to signaling information carries out the selection of pre-coding matrix.Compared to prior art, the present invention is without the need to creating new signaling channel, thus the present invention can reduce the difficulty of command transmitting information.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of signaling information transmission method first embodiment of the present invention;
Fig. 2 is that in Fig. 1, user terminal generates the refinement schematic flow sheet carrying the first training sequence of signaling information;
Fig. 3 is the schematic flow sheet of signaling information transmission method second embodiment of the present invention;
Fig. 4 is the high-level schematic functional block diagram of signaling information transmitting device first embodiment of the present invention;
Fig. 5 is the refinement high-level schematic functional block diagram of generation module in Fig. 4;
Fig. 6 is the high-level schematic functional block diagram of signaling information transmitting device second embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of signaling information transmission method, with reference to Fig. 1, in the first embodiment of signaling information transmission method of the present invention, described signaling information transmission method comprises:
S10, user terminal generates the first training sequence carrying signaling information, and described signaling information carries channel condition information;
As one of communication system most popular in world wide, gsm system still in further evolution process, i.e. so-called GERAN (GSM/EDGERadioAccessNetwork) evolution.The emphasis of its research is the realization of various service (voice, data, multimedia, TV etc.) and ensures its service quality.The signaling information transmission method that the present embodiment provides can be applied in gsm system, under being intended to not change the prerequisite of existing signaling channel, carries out the signaling information transmission selected for pre-coding matrix, to reduce the difficulty of command transmitting information.It will be appreciated by persons skilled in the art that the present invention is except being applied to except gsm system, the communication system that other uses training sequence can also be applied to.
In the present embodiment, first user terminal generates the first training sequence carrying signaling information, particularly, user terminal is after getting the signaling information carrying channel condition information, choose one and preset training sequence, and described signaling information is superimposed to the described default training sequence chosen, using the default training sequence after the described signaling information of superposition as described first training sequence.
It should be noted that, in gsm system, comprise the modulation system that GMSK, 8PSK, 16QAM and 32QAM etc. are different, and different modulation systems is to there being different training sequence of presetting, and is described by default training sequence corresponding for the GMSK modulation mode commonly used below with GSM.
Wherein, the default training sequence that GMSK is corresponding is as shown in table 1:
| TSC | BN61 to BN86 |
| 0 | (0.0.1.0.0.1.0.1.1.1.0.0.0.0.1.0.0.0.1.0.0.1.0.1.1.1) |
| 1 | (0.0.1.0.1.1.0.1.1.1.0.1.1.1.1.0.0.0.1.0.1.1.0.1.1.1) |
| 2 | (0.1.0.0.0.0.1.1.1.0.1.1.1.0.1.0.0.1.0.0.0.0.1.1.1.0) |
| 3 | (0.1.0.0.0.1.1.1.1.0.1.1.0.1.0.0.0.1.0.0.0.1.1.1.1.0) |
| 4 | (0.0.0.1.1.0.1.0.1.1.1.0.0.1.0.0.0.0.0.1.1.0.1.0.1.1) |
| 5 | (0.1.0.0.1.1.1.0.1.0.1.1.0.0.0.0.0.1.0.0.1.1.1.0.1.0) |
| 6 | (1.0.1.0.0.1.1.1.1.1.0.1.1.0.0.0.1.0.1.0.0.1.1.1.1.1) |
| 7 | (1.1.1.0.1.1.1.1.0.0.0.1.0.0.1.0.1.1.1.0.1.1.1.1.0.0) |
Table 1
S20, described first training sequence is encapsulated as corresponding packet by described user terminal;
It should be noted that, in time division multiple access (TimeDivisionMultipleAccess, TDMA) system, data bit presses period transmission, is commonly called packet.It is synchronous for assisting that each packet at least comprises a training sequence, estimates channel, demodulation subscriber signal etc.Training sequence does not generally comprise any information relevant with user profile, is widely used in various communication system, as GSM, IS-136, CDMA, CDMA2000, WCDMA, WiMAX, LTE, WLAN, DVB-T and xDSL etc.
In the present embodiment, after the first training sequence of signaling information is carried in generation, described first training sequence and local terminal user data to be sent are encapsulated as packet by described user terminal, wherein, process training sequence being encapsulated as packet can refer to prior art and implements, and repeats no more herein.
S30, described user terminal is by described Packet Generation to base station, and the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
In the present embodiment, base station, after receiving the described packet that user terminal sends, parses user data and the first training sequence that described packet carries, and by user data described in normal flow process; First base station identifies that whether described first training sequence is one of default training sequence as shown in table 1, if so, then by the first training sequence described in existing procedure process; If not, then identify that described first training sequence is the training sequence carrying signaling information, from described first training sequence, parse signaling information, and select corresponding pre-coding matrix according to the channel condition information that described signaling information carries.Wherein, base station selects the process of pre-coding matrix to can refer to prior art execution according to channel condition information, repeats no more herein.
The signaling information transmission method that the present embodiment proposes, by the signaling information carrying channel condition information is modulated in training sequence, training sequence is made to carry signaling information, and the training sequence carrying signaling information is encapsulated as packet, utilize data channel by described Packet Generation to base station, after base station parses signaling information from packet, the channel condition information carried according to signaling information carries out the selection of pre-coding matrix.Compared to prior art, the present invention is without the need to creating new signaling channel, thus the present invention can reduce the difficulty of command transmitting information.
Further, with reference to Fig. 2, in the present embodiment, above-mentioned S10 comprises:
S101, described user terminal obtains channel condition information, and generates signaling information based on described channel condition information;
S102, described signaling information is superimposed to corresponding training sequence based on default weighted factor by described user terminal, and using the training sequence after the described signaling information of superposition as described first training sequence.
It should be noted that, channel condition information (ChannelStateInformation, CSI), is exactly the channel attribute of communication link.It is described that the weak factor of signal on every transmission paths, the i.e. value of each element in channel gain matrix H, as signal dispersion (Scattering), weak (the fading of environment, multipathfadingorshadowingfading), the information such as range attenuation (powerdecayofdistance).CSI can make communication system adapt to current channel condition, in multi-antenna systems for the communication of high reliability two-forty provides guarantee.
In the present embodiment, described user terminal, after getting CSI, is quantified as corresponding signaling information; Choose one and preset training sequence, and based on default weighted factor, described signaling information is superimposed to described training sequence, using the default training sequence after the described signaling information of superposition as described first training sequence.
Wherein, described default training sequence corresponding first presets weighted factor, and described signaling information corresponding second presets weighted factor; Described first absolute value presetting weighted factor is greater than 0, and the described second absolute value presetting weighted factor is less than 1.
Such as, default training sequence is S1, signaling information is S2, the first default weighted factor is a1, the second default weighted factor is a2, then superposition principle is: used by S1 and S2 a1 and a2 to adjust in proportion respectively, makes the energy of the a1S1+a2S2 after superposing identical with the energy of S1.
Preferably, in the present embodiment, for avoiding mutual interference, described signaling information is uncorrelated with the training sequence be applied or orthogonal, namely when choosing default training sequence, chooses the default training sequence uncorrelated or orthogonal with signaling information.
Further, present invention also offers a kind of signaling information transmission method, with reference to Fig. 3, provide the second embodiment of signaling information transmission method of the present invention, in the present embodiment, described signaling information transmission method comprises:
S11, when receiving the packet that user terminal sends, base station obtains the second training sequence that described packet carries;
S12, described base station obtains the signaling information that described second training sequence carries, and selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
It should be noted that, in time division multiple access (TimeDivisionMultipleAccess, TDMA) system, data bit presses period transmission, is commonly called packet.It is synchronous for assisting that each packet at least comprises a training sequence, estimates channel, demodulation subscriber signal etc.Training sequence does not generally comprise any information relevant with user profile, is widely used in various communication system, as GSM, IS-136, CDMA, CDMA2000, WCDMA, WiMAX, LTE, WLAN, DVB-T and xDSL etc.As one of communication system most popular in world wide, gsm system still in further evolution process, i.e. so-called GERAN (GSM/EDGERadioAccessNetwork) evolution.The emphasis of its research is the realization of various service (voice, data, multimedia, TV etc.) and ensures its service quality.The signaling information transmission method that the present embodiment provides can be applied in gsm system, under being intended to not change the prerequisite of existing signaling channel, carries out the signaling information transmission selected for pre-coding matrix, to reduce the difficulty of command transmitting information.It will be appreciated by persons skilled in the art that the present invention is except being applied to except gsm system, the communication system that other uses training sequence can also be applied to.
In the present embodiment, after receiving the packet that user terminal sends, base station parses the user data and the second training sequence that described packet carries, and by user data described in normal flow process; From described second training sequence, parse signaling information, and select corresponding pre-coding matrix according to the channel condition information that described signaling information carries.Wherein, base station selects the process of pre-coding matrix to can refer to prior art execution according to channel condition information, repeats no more herein.
Further, based on the second embodiment, propose the 3rd embodiment of signaling information transmission method of the present invention, in the present embodiment, before above-mentioned S12, also comprise:
Described base station judges whether described second training sequence is default training sequence;
When described second training sequence is not described default training sequence, performs the signaling information that described base station described second training sequence of acquisition carries, select the step of corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
In the present embodiment, base station, when receiving the packet that user terminal sends, first judges that whether the second training sequence that described packet carries is the default training sequence of corresponding GMSK modulation mode as shown in table 1; If described second training sequence is for presetting training sequence, illustrating that described second training sequence does not carry signaling information, is normal training sequence, processes by existing procedure; If described second training sequence is not described default training sequence, illustrate that described second training sequence is the training sequence after modulation, it carries signaling information, now, from described second training sequence, parse described signaling information, select corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
The present invention also provides a kind of signaling information transmitting device, and with reference to Fig. 4, in the first embodiment of signaling information transmitting device of the present invention, described signaling information transmitting device comprises:
Generation module 10, for generating the first training sequence carrying signaling information, described signaling information carries channel condition information;
As one of communication system most popular in world wide, gsm system still in further evolution process, i.e. so-called GERAN (GSM/EDGERadioAccessNetwork) evolution.The emphasis of its research is the realization of various service (voice, data, multimedia, TV etc.) and ensures its service quality.The signaling information transmitting device that the present embodiment provides can be applied in gsm system, be applied particularly to user terminal, under being intended to not change the prerequisite of existing signaling channel, carry out the signaling information transmission selected for pre-coding matrix, to reduce the difficulty of command transmitting information.It will be appreciated by persons skilled in the art that the present invention is except being applied to except gsm system, the communication system that other uses training sequence can also be applied to.
In the present embodiment, first generation module 10 generates the first training sequence carrying signaling information, particularly, generation module 10 is after getting the signaling information carrying channel condition information, choose one and preset training sequence, and described signaling information is superimposed to the described default training sequence chosen, using the default training sequence after the described signaling information of superposition as described first training sequence.
It should be noted that, in gsm system, comprise the modulation system that GMSK, 8PSK, 16QAM and 32QAM etc. are different, and different modulation systems is to there being different training sequence of presetting, and is described by default training sequence corresponding for the GMSK modulation mode commonly used below with GSM.The default training sequence that GMSK is corresponding is as shown in table 1.
Package module 20, for being encapsulated as corresponding packet by described first training sequence;
It should be noted that, in time division multiple access (TimeDivisionMultipleAccess, TDMA) system, data bit presses period transmission, is commonly called packet.It is synchronous for assisting that each packet at least comprises a training sequence, estimates channel, demodulation subscriber signal etc.Training sequence does not generally comprise any information relevant with user profile, is widely used in various communication system, as GSM, IS-136, CDMA, CDMA2000, WCDMA, WiMAX, LTE, WLAN, DVB-T and xDSL etc.
In the present embodiment, after the first training sequence of signaling information is carried in generation module 10 generation, described first training sequence and its place user terminal user data to be sent are encapsulated as packet by package module 20, wherein, process training sequence being encapsulated as packet can refer to prior art and implements, and repeats no more herein.
Sending module 30, for by described Packet Generation to base station, the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
In the present embodiment, base station, after receiving the described packet that user terminal (sending module 30) sends, parses user data and the first training sequence that described packet carries, and by user data described in normal flow process; First base station identifies that whether described first training sequence is one of default training sequence as shown in table 1, if so, then by the first training sequence described in existing procedure process; If not, then identify that described first training sequence is the training sequence carrying signaling information, from described first training sequence, parse signaling information, and select corresponding pre-coding matrix according to the channel condition information that described signaling information carries.Wherein, base station selects the process of pre-coding matrix to can refer to prior art execution according to channel condition information, repeats no more herein.
The signaling information transmitting device that the present embodiment proposes, by the signaling information carrying channel condition information is modulated in training sequence, training sequence is made to carry signaling information, and the training sequence carrying signaling information is encapsulated as packet, utilize data channel by described Packet Generation to base station, after base station parses signaling information from packet, the channel condition information carried according to signaling information carries out the selection of pre-coding matrix.Compared to prior art, the present invention is without the need to creating new signaling channel, thus the present invention can reduce the difficulty of command transmitting information.
Further, with reference to Fig. 5, in the present embodiment, described generation module 10 comprises:
Generation unit 101, for obtaining channel condition information, and generates signaling information based on described channel condition information;
Superpositing unit 102, for being superimposed to corresponding training sequence based on default weighted factor by described signaling information, and using the training sequence after the described signaling information of superposition as described first training sequence.
It should be noted that, channel condition information (ChannelStateInformation, CSI), is exactly the channel attribute of communication link.It is described that the weak factor of signal on every transmission paths, the i.e. value of each element in channel gain matrix H, as signal dispersion (Scattering), weak (the fading of environment, multipathfadingorshadowingfading), the information such as range attenuation (powerdecayofdistance).CSI can make communication system adapt to current channel condition, in multi-antenna systems for the communication of high reliability two-forty provides guarantee.
In the present embodiment, generation unit 101, after getting CSI, is quantified as corresponding signaling information; Superpositing unit 102 is chosen one and is preset training sequence, and based on default weighted factor, described signaling information is superimposed to described training sequence, using the default training sequence after the described signaling information of superposition as described first training sequence.
Wherein, described default training sequence corresponding first presets weighted factor, and described signaling information corresponding second presets weighted factor; Described first absolute value presetting weighted factor is greater than 0, and the described second absolute value presetting weighted factor is less than 1.
Such as, default training sequence is S1, signaling information is S2, the first default weighted factor is a1, the second default weighted factor is a2, then superposition principle is: used by S1 and S2 a1 and a2 to adjust in proportion respectively, makes the energy of the a1S1+a2S2 after superposing identical with the energy of S1.
Preferably, in the present embodiment, for avoiding mutual interference, described signaling information is uncorrelated with the training sequence be applied or orthogonal, namely when superpositing unit 102 chooses default training sequence, chooses the default training sequence uncorrelated or orthogonal with signaling information.
Further, present invention also offers a kind of signaling information transmitting device, with reference to Fig. 6, provide the second embodiment of signaling information transmitting device of the present invention, in the present embodiment, described signaling information transmitting device comprises:
First acquisition module 11, for receive in base station user terminal send packet time, obtain the second training sequence that described packet carries;
Second acquisition module 12, for obtaining the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
It should be noted that, in time division multiple access (TimeDivisionMultipleAccess, TDMA) system, data bit presses period transmission, is commonly called packet.It is synchronous for assisting that each packet at least comprises a training sequence, estimates channel, demodulation subscriber signal etc.Training sequence does not generally comprise any information relevant with user profile, is widely used in various communication system, as GSM, IS-136, CDMA, CDMA2000, WCDMA, WiMAX, LTE, WLAN, DVB-T and xDSL etc.As one of communication system most popular in world wide, gsm system still in further evolution process, i.e. so-called GERAN (GSM/EDGERadioAccessNetwork) evolution.The emphasis of its research is the realization of various service (voice, data, multimedia, TV etc.) and ensures its service quality.The signaling information transmitting device that the present embodiment provides can be applied in gsm system, is applied particularly to base station, under being intended to not change the prerequisite of existing signaling channel, carries out the signaling information transmission selected for pre-coding matrix, to reduce the difficulty of command transmitting information.It will be appreciated by persons skilled in the art that the present invention is except being applied to except gsm system, the communication system that other uses training sequence can also be applied to.
In the present embodiment, after base station receives the packet that user terminal (sending module 30) sends, the first acquisition module 11 parses the user data and the second training sequence that described packet carries, and by user data described in normal flow process; Second acquisition module 12 parses signaling information from described second training sequence, selects corresponding pre-coding matrix for base station according to the channel condition information that described signaling information carries.Wherein, base station selects the process of pre-coding matrix to can refer to prior art execution according to channel condition information, repeats no more herein.
Further, based on the second embodiment, propose the 3rd embodiment of signaling information transmitting device of the present invention, in the present embodiment, described signaling information transmitting device also comprises judge module, for judging whether described second training sequence is default training sequence;
Described second acquisition module 12 also for when described second training sequence is not described default training sequence, obtains the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
In the present embodiment, when receiving the packet that user terminal sends in base station, first judge module judges that whether the second training sequence that described packet carries is the default training sequence of corresponding GMSK modulation mode as shown in table 1; If described second training sequence is for presetting training sequence, illustrating that described second training sequence does not carry signaling information, is normal training sequence, processes by existing procedure; If described second training sequence is not described default training sequence, illustrate that described second training sequence is the training sequence after modulation, it carries signaling information, now, second acquisition module 12 parses described signaling information from described second training sequence, selects corresponding pre-coding matrix for base station according to the channel condition information that described signaling information carries.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a signaling information transmission method, is characterized in that, described signaling information transmission method comprises:
User terminal generates the first training sequence carrying signaling information, and described signaling information carries channel condition information;
Described first training sequence is encapsulated as corresponding packet by described user terminal;
Described user terminal is by described Packet Generation to base station, and the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
2. signaling information transmission method as claimed in claim 1, is characterized in that, described user terminal generates the step of carrying the training sequence of signaling information and comprises:
Described user terminal obtains channel condition information, and generates signaling information based on described channel condition information;
Described signaling information is superimposed to corresponding training sequence based on default weighted factor by described user terminal, and using the training sequence after the described signaling information of superposition as described first training sequence.
3. signaling information transmission method as claimed in claim 2, it is characterized in that, described signaling information is uncorrelated with the training sequence be applied or orthogonal.
4. a signaling information transmission method, is characterized in that, described signaling information transmission method comprises:
When receiving the packet that user terminal sends, base station obtains the second training sequence that described packet carries;
Described base station obtains the signaling information that described second training sequence carries, and selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
5. signaling information transmission method as claimed in claim 4, is characterized in that, described when receiving the packet that user terminal sends, base station also comprises before obtaining the step of the second training sequence that described packet carries:
Described base station judges whether described second training sequence is default training sequence;
When described second training sequence is not described default training sequence, performs the signaling information that described base station described second training sequence of acquisition carries, select the step of corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
6. a signaling information transmitting device, is characterized in that, described signaling information transmitting device comprises:
Generation module, for generating the first training sequence carrying signaling information, described signaling information carries channel condition information;
Package module, for being encapsulated as corresponding packet by described first training sequence;
Sending module, for by described Packet Generation to base station, the first training sequence carried based on described packet for described base station obtains described signaling information, and selects corresponding pre-coding matrix according to the channel condition information that described signaling information carries.
7. signaling information transmitting device as claimed in claim 6, it is characterized in that, described generation module comprises:
Generation unit, for obtaining channel condition information, and generates signaling information based on described channel condition information;
Superpositing unit, for being superimposed to corresponding training sequence based on default weighted factor by described signaling information, and using the training sequence after the described signaling information of superposition as described first training sequence.
8. signaling information transmitting device as claimed in claim 7, it is characterized in that, described signaling information is uncorrelated with the training sequence be applied or orthogonal.
9. a signaling information transmitting device, is characterized in that, described signaling information transmitting device comprises:
First acquisition module, for receive in base station user terminal send packet time, obtain the second training sequence that described packet carries;
Second acquisition module, for obtaining the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
10. signaling information transmitting device as claimed in claim 9, it is characterized in that, described signaling information transmitting device also comprises judge module, for judging whether described second training sequence is default training sequence;
Described second acquisition module also for when described second training sequence is not described default training sequence, obtains the signaling information that described second training sequence carries, selects corresponding pre-coding matrix with the channel condition information carried according to described signaling information.
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