CN101141756A - Data transmission mode setting and detecting apparatus and method - Google Patents
Data transmission mode setting and detecting apparatus and method Download PDFInfo
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- CN101141756A CN101141756A CNA2006101287841A CN200610128784A CN101141756A CN 101141756 A CN101141756 A CN 101141756A CN A2006101287841 A CNA2006101287841 A CN A2006101287841A CN 200610128784 A CN200610128784 A CN 200610128784A CN 101141756 A CN101141756 A CN 101141756A
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Abstract
The present invention provides a data transmission mode setting and detecting device. The present invention comprises a channel setting unit positioned at a data sending terminal, the channel setting unit is used for setting forward transmission mode indication channel, wherein, the forward transmission mode indication channel carries indication information for indicating the data transmission mode; the present invention also comprises a data transmission format detection unit positioned at a data receiving terminal, the data transmission format detection unit is used for analyzing the indication information transmitted through the forward transmission mode indication channel, and thus the data transmission format is detected. The present invention also provides a data transmission mode setting and detecting method. Through the technical proposal of the present invention, the following advantages that the processing complexity of the receiver is reduced, and the power is saved and different application scene demands of different customers are met are realized.
Description
Technical field
The present invention relates to the communications field, and more particularly, relate to a kind of data transmission mode setting and checkout gear and method, it can be applied to wireless communication system.
Background technology
The 3G mobile communication technology is ripe gradually commercial at present, and 3GPP2 CDMA20001XEV-DO can further provide competitive wireless access system in the coming years.But want to keep following 10 years or the competitiveness in decades, need to introduce new wireless access technology.At present industry is reached preliminary unanimity with regard to the technology of the eating dishes without rice or wine evolution of 3GPP2, promptly is divided into two stages to carry out, and the stage one is adopted the multi-carrier EV-DO technology, more consider compatible, the evolution items of short-term just; Stages two AIE (AIE) introduces more advanced technology, such as OFDM (OFDM) technology, MIMO technology or the like, can improve the spectrum efficiency and the peak rate of wireless access system greatly, be the evolution plan of 3GPP2 standard long-term.How to carry out technology evolution about the AIE stage two, each major company proposes two kinds of mode of operations again: i.e. SBC (strict compatibility mode) pattern and LBC (loose compatibility mode) pattern.By in August, 2006, the framework of AIE SBC pattern has been worked out basically and has been finished, that is, may be the SBC that proposes based on QualCom company, can carry out certain modification and can finish and be upgraded to SBC on the basis of DO Rev.B.
In the technological frame of the SBC pattern that QualCom company proposes (referring to C30-20060731-044R2_AHQRZ_UHDR-DO_overview), forward data transmission still adopts the time division multiplexing mode of DO Rev.B, be that forward direction is a transmission unit with time slot (slot) still, service data transmission in each time slot.Wherein, can transmit the data of CDM (code division multiplexing) in each time slot, data that also can transmission OFDM (OFDM).Wherein, half crack data structure as shown in Figure 1.
For adopting the OFDM symbol to carry out the situation of transfer of data since in ofdm system in order to prevent intersymbol interference, all added Cyclic Prefix (CP), so when in Fig. 1, carrying out transfer of data, also need to add Cyclic Prefix based on the OFDM symbol.Simultaneously, for different application scenarioss, when expanding,, need to be provided with long CP this moment because the channel delay expansion is very big such as long time delay, and for the scene of high-speed mobile, the channel delay expansion is little, and only need be provided with less CP and get final product this moment, so in the parameter that high pass provides, stipulated 3 kinds of parameter configurations as shown in Figure 2, it corresponds respectively to the setting of parameter under 3 kinds of different scenes.
System's parameter setting that following a period of time of broadcasting will use in system parameters message at interval at regular intervals, in next time period of broadcasting, system will adopt the parameter setting of For Highspeed Channel to carry out transfer of data, then all users must carry out Data Receiving according to this parameter setting, up to parameter next time modification are set.
If adopt system parameters to issue the parameter setting, the flexibility deficiency then seems.Each system parameters message issues, and needs is increased extra expense notify all users.And all users may not satisfy the parameter current setting, be set to the default parameter configuration now such as system, but might there be the certain user fully in the system, these users' time delay expansion is very big, use default CP can not satisfy the demand of their time delay expansion, concerning these users, performance will be poor.If system is when being provided with parameter, consider the big user of time delay expansion, with CP be provided with very long, so for other domestic consumers, CP is provided with very long, with increasing extra expense, has reduced the efficiency of transmission to domestic consumer.
Simultaneously, because in the forward data transmission of SBC, can adopt the form of CDM, also can adopt the form of OFDM, but the user is when receiving data and do not know definite data transmission format, so must carry out blind Detecting, promptly elder generation once receives according to the form of CDM, and then once receive according to the form of OFDM, could correctly receive data like this.Blind Detecting will cause increasing the complexity that AT (incoming end) handles, the energy of waste AT.
By foregoing description as can be seen, under AIE SBC (the strict compatibility mode of AIE) pattern, correlation technique to the context of detection existing problems of transformat, therefore needs a kind of scheme that can overcome the problems referred to above at the parameter configuration of Cyclic Prefix and incoming end.
Summary of the invention
Consider the problems referred to above and make the present invention, for this reason, the invention provides a kind of data transmission mode setting and checkout gear and system.
According to an aspect of the present invention, a kind of data transmission mode setting and checkout gear are provided.
Above-mentioned data transmission mode setting and checkout gear comprise: channel is provided with the unit, is positioned at data sending terminal, is used to be provided with fl transmission pattern indicating channel, and wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And the data transmission format detecting unit, be positioned at data receiver, be used to resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, indication information is the information of at least 1 bit.And data transmission format comprises code division multiplexing pattern and OFDM pattern.Wherein, when data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system, operating parameter comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.Wherein, when data transmission format is the OFDM pattern, the parameter that indication information further indicates the OFDM form to adopt.
Especially, channel is provided with the unit and may further include: optimize coding module, scrambler module, replicated blocks and laminating module, in this case, the data transmission format detecting unit by go repetition, remove scrambler, decode operation resolves indication information, and after parsing indication information, the signal of fl transmission pattern indicating channel transmission is removed from superposed signal by the method for interference eliminated.
Perhaps, different with above-mentioned situation, channel is provided with the unit and may further include: block encoding module, spread spectrum module, gain module, laminating module and replicated blocks, in this case, the data transmission format detecting unit is resolved indication information by going repetition, despreading, maximum-likelihood decoding to operate.
A kind of different situation in addition is that channel is provided with the unit and may further include: modulation module, gain module, spread spectrum module and laminating module.
According to a further aspect in the invention, provide a kind of data transmission mode setting and detection method, can use according to data transmission mode setting of the present invention and checkout gear.
This data transmission mode setting and detection method may further comprise the steps: channel is provided with step, and fl transmission pattern indicating channel is set, and wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And data transmission format detection step, be used to resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, indication information is the information of at least 1 bit.And data transmission format comprises code division multiplexing pattern and OFDM pattern.Wherein, when data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system, operating parameter comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.Wherein, when data transmission format is the OFDM pattern, the parameter that indication information further indicates the OFDM form to adopt.
Especially, above-mentioned channel is provided with step and may further include following steps: optimize coding step, scrambler step, repeating step and stack step, in this case, detect in the step in data transmission format, by go repetition, remove scrambler, decode operation resolves indication information, and after this, may further include signal and remove step.
Perhaps, different with above-mentioned situation, above-mentioned channel is provided with step and may further include following steps: block encoding step, spread spectrum step, gain step, once superpose step, repeating step, secondary stack step, in this case, detect in the step in data transmission format, resolve indication information by going repetition, despreading, maximum-likelihood decoding to operate.
A kind of different situation in addition is that above-mentioned channel is provided with step and can further include following steps: modulation step, gain step, spread spectrum step and stack step.
By above technical scheme, the present invention has realized following beneficial effect: carry the information that transmission mode and CP parameter are provided with by overhead channel, each user needn't carry out blind Detecting, can alleviate the complexity that receiver is handled, and saves power.Simultaneously,, can flexible configuration CP parameter be provided with, satisfy the demand of different user for the different application scene for different users.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and exemplary embodiment 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 schematic diagram that half crack data structure is shown;
Fig. 2 is the chart that illustrates according to the data transmission format parameter configuration of correlation technique;
Fig. 3 illustrates according to the data transmission mode setting of first embodiment of the invention and the structural representation of checkout gear;
Fig. 4 is the block diagram that illustrates according to the structure of the data transmission mode setting of first embodiment of the invention and checkout gear;
Fig. 5 is the schematic diagram that the operation of optimizing coding module is shown;
Fig. 6 illustrates according to the data transmission mode setting of second embodiment of the invention and the structural representation of checkout gear;
Fig. 7 is the block diagram that illustrates according to the structure of the data transmission mode setting of second embodiment of the invention and checkout gear;
Fig. 8 is the schematic diagram that the operation of block encoding module is shown;
Fig. 9 is the block diagram that illustrates according to the structure of the data transmission mode setting of third embodiment of the invention and checkout gear;
Figure 10 is the flow chart that illustrates according to the data transmission mode setting and the detection method of fourth embodiment of the invention;
Figure 11 is the flow chart that illustrates according to the data transmission mode setting and the detection method of fifth embodiment of the invention; And
Figure 12 is the flow chart that illustrates according to the data transmission mode setting and the detection method of fifth embodiment of the invention.
Embodiment
Specifically describe the preferred embodiments of the present invention hereinafter with reference to accompanying drawing, wherein, accompanying drawing constitutes the application's a part, and is used from explaination principle of the present invention with embodiments of the invention one.
First embodiment
In according to the first embodiment of the present invention, a kind of data transmission mode setting and checkout gear are provided.Describe the first embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Fig. 3 and Fig. 4 are respectively structural representation and the structured flowcharts that this device is shown.
As shown in Figure 4, data transmission mode setting and checkout gear 400 comprise: channel is provided with unit 402, is positioned at data sending terminal, is used to be provided with fl transmission pattern indicating channel, wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And data transmission format detecting unit 404, be positioned at data receiver, be used to resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, indication information is the information of at least 1 bit (for example, 2 bits).For example, below show indication information and data-transmission mode and CP configured corresponding relation:
00---forward direction adopts the transmission of CDM form
01---the transmission of fl transmission OFDM form, the CP configuration is adopted default
10---the transmission of fl transmission OFDM form, For high speedchannel is adopted in the CP configuration
11---the transmission of fl transmission OFDM form, For largedelay-spread channel is adopted in the CP configuration;
Data transmission format comprises code division multiplexing pattern (CDM) and OFDM pattern (OFDM).Wherein, when data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system, operating parameter comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.Wherein, when data transmission format is the OFDM pattern, the parameter that indication information further indicates the OFDM form to adopt.
Especially, channel is provided with unit 402 and may further include: optimize coding module 4020, be used for indication information is optimized coding; Scrambler module 4022 is connected to and optimizes coding module 4020, is used for carrying out scrambler through the indication information of optimizing coding, and to form code division multiplexing with traffic channel data, wherein, selected scrambler sequence is relevant with the Traffic Channel scrambler sequence; Replicated blocks 4024 are connected to scrambler module 4022, are used for the indication information through scrambler module scrambler is repeated pre-determined number; And laminating module 4026, be connected to replicated blocks 4024, the fragment that the fragment that is used for forming by replicated blocks is added to and is produced by Traffic Channel.
For example, be under the situation of 2bit at indication information, the indication information of 2bit can be repeated module 4024 and repeat 25 times, and 800 chips of formation are added to by laminating module 4026 on the 800chips that Traffic Channel produces.Wherein, the operation of optimizing coding module 4020 is mapped to 4 code words shown in Figure 5 with the indication information of 2bit as shown in Figure 5.Wherein, the Hamming distance of the code word among Fig. 5 can be maximum, so can guarantee the best performance deciphered.When in real system, transmitting, bit0 be mapped to+1, bits1 is mapped to-1.Coding adopts (32,2,21) block code, wherein, the 21st, Hamming distance.
Like this, F-TMICH channel information and traffic channel data are equivalent to code division multiplexing.Owing on 800chips, only transmitted the useful information of 2bits, so the F-TMICH performance is very good, what the F-TMICH channel transmitting power can be provided with simultaneously is very low, for example, the power of pilot channel can be set to-15dB relatively, so the F-TMICH channel is very little for the interference of Traffic Channel.
Wherein, at data receiver, data transmission format detecting unit 404 by go repetition, remove scrambler, decode operation resolves indication information.By the indication of indication information, the user can know that the form of transfer of data is CDM or OFDM, if the OFDM form can also be known parameter settings such as CP, and the user's data that just can go to resolve Traffic Channel according to the form and the parameter setting of correspondence so.
In addition, after parsing indication information, can be by the way of interference eliminated, the signal of F-TMICH Channel Transmission is eliminated from superposed signal, and then traffic channel signal carried out data demodulates and decoding, can reduce the interference of overhead channel more like this, thereby guarantee the performance of Traffic Channel for Traffic Channel.
Second embodiment
In according to a second embodiment of the present invention, a kind of data transmission mode setting and checkout gear are provided.Its with first embodiment in the different of device that provide be that channel is provided with the formation difference of unit, therefore hereinafter, will omit being repeated in this description to its same section.
Describe the second embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Fig. 6 and Fig. 7 illustrate the data transmission mode setting of second embodiment and the structural representation and the structured flowchart of checkout gear.
As shown in Figure 7, data transmission mode setting and checkout gear 700 comprise that channel is provided with unit 702 and data transmission format detecting unit 704.
Wherein, channel is provided with unit 702 and further comprises: block encoding module 7020 is used for indication information is encoded; Spread spectrum module 7022 is connected to block encoding module 7020, is used for the indication information through coding is carried out spread processing; Gain module 7024 is connected to spread spectrum module 7022, is used for the indication information through spread spectrum be multiply by certain gain; Laminating module 7026 is connected to gain module 7024, and being used for will be through the be added to transmission pilot signal of preceding half time slot of each forward direction output time solt of the indication information of gain process; And replicated blocks 7028, be used for the indication information by laminating module 7026 outputs is repeated once; Wherein, indication information is applied the be added to transmission pilot signal of back half time slot of each forward direction output time solt of module 7026 after repeating through replicated blocks 7028.
That is to say, the indication information that for example is 2bit is at first by (24,2,16) block encoding module is encoded, output sequence carries out spread spectrum through a Walsh sign indicating number, multiply by certain gain then is added on 96 chips of transmission pilot signal of preceding half time slot of each forward direction output time solt again, repeat simultaneously once, be added to again the back half time slot 96 chips of pilot tone on, so the information via of 2bits coding, carry out 4 times of spread spectrums then, repeat once, on the pilot signal of 192 chips of the time slot that can be added to like this.Wherein, the operation of block encoding module 7020 as shown in Figure 8.
In the code word of 24bits shown in Fig. 8, Hamming distance can be maximum, so can guarantee the best performance deciphered.When in real system, transmitting, bit0 be mapped to+1, bits1 is mapped to-1.Wherein, 16 in (24,2,16) are Hamming distances.
In addition, carry out spread spectrum with the walsh sign indicating number and can bring spreading gain, keep quadrature with pilot transmission simultaneously, F-TMICH and Forward Pilot Channel keep orthogonal transmission when transmitting like this, do not disturb mutually.In addition, repeat also can bring gain.So F-TMICH and Forward Pilot Channel are to carry out multiplexing transmission in the mode of code division multiplexing.And do not disturb for the transfer of data of Traffic Channel.Find according to emulation simultaneously, because the F-TMICH Channel Transmission has coding gain, spreading gain and repeated gain, thus can launch such as power with low-down power setting with respect to pilot transmit power-10dB, just littler for the interference of pilot tone.The through-put power of F-TMICH channel still is adjustable simultaneously.
At data receiver, data transmission format detecting unit 704 is resolved indication information by going repetition, despreading, maximum-likelihood decoding to operate.
The 3rd embodiment
In a third embodiment in accordance with the invention, a kind of data transmission mode setting and checkout gear are provided.Its with first and second embodiment in the different of device that provide be that channel is provided with the formation difference of unit, therefore hereinafter, will omit being repeated in this description to its same section.
Describe the third embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Fig. 9 illustrates the data transmission mode setting of second embodiment and the structured flowchart of checkout gear.
As shown in Figure 9, data transmission mode setting and checkout gear 900 comprise that channel is provided with unit 902 and data transmission format detecting unit 904.
Channel is provided with unit 902 and further comprises: modulation module 9020 is used for indication information is carried out sign map; Gain module 9022 is connected to modulation module 9020, is used for the indication information by modulation module output be multiply by certain gain; Spread spectrum module 9024 is connected to gain module 9022, is used for the indication information by gain module output is carried out spread processing; And laminating module 9026, be connected to spread spectrum module 9024, be used for the be added to signal of other control channels of indication information with spread spectrum module output, transmit in forward direction MAC channel in the mode of code division multiplexing.
Wherein, the spread-spectrum orthogonal sign indicating number of spread spectrum module 9024 uses is by system's reservation or by the wireless access network assignment.
The 4th embodiment
In a fourth embodiment in accordance with the invention, a kind of data transmission mode setting and detection method are provided.Describe the fourth embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Figure 10 illustrates this method flow diagram.
As shown in figure 10, data transmission mode setting and detection method may further comprise the steps: step S1002 (channel is provided with step), fl transmission pattern indicating channel is set, and wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And step S1004 (data transmission format detection step), resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, indication information is the information of at least 1 bit (for example, 2 bits).For example, below show indication information and data-transmission mode and CP configured corresponding relation:
00---forward direction adopts the transmission of CDM form
01---the transmission of fl transmission OFDM form, the CP configuration is adopted default
10---the transmission of fl transmission OFDM form, For high speedchannel is adopted in the CP configuration
11---the transmission of fl transmission OFDM form, For largedelay-spread channel is adopted in the CP configuration;
Data transmission format comprises code division multiplexing pattern (CDM) and OFDM pattern (OFDM).Wherein, when data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system, operating parameter comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.Wherein, when data transmission format is the OFDM pattern, the parameter that indication information further indicates the OFDM form to adopt.
Wherein, step S1002 further comprises step: step S1002-1 (optimization coding step), and indication information is optimized coding; Step S1002-2 (scrambler step), to carrying out scrambler through the indication information of optimizing coding, to form code division multiplexing with traffic channel data, wherein, selected scrambler sequence is relevant with the Traffic Channel scrambler sequence; Step S1002-3 (repeating step) will repeat pre-determined number through the indication information that scrambler is handled; And step S1002-4 (stack step), the fragment that will form in step S1002-3 is added on the fragment that is produced by Traffic Channel.
Wherein, in step S1004, by go repetition, remove scrambler, decode operation resolves indication information.
After step S1004, further comprise step S1006 (signal removal step), by the method for interference eliminated the signal of fl transmission pattern indicating channel transmission is removed from superposed signal.
The 5th embodiment
In according to a fifth embodiment of the invention, a kind of data transmission mode setting and detection method are provided.Its with the 4th embodiment in the different of method that provide be that channel is provided with composition step difference included in the step, therefore hereinafter, will omit being repeated in this description to its same section.
Describe the fifth embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Figure 11 is the flow chart that data transmission mode setting and the detection method of the 5th embodiment are shown.
As shown in figure 11, this method may further comprise the steps: step S1102 (channel is provided with step), fl transmission pattern indicating channel is set, and wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And step S1104 (data transmission format detection step), resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, step S1102 further may further comprise the steps: S1102-1 (block encoding step), encode to indication information; S1102-2 (spread spectrum step) carries out spread spectrum to the indication information through coding; S1102-3 (gain step) will multiply by certain gain through the indication information of spread spectrum; S1102-4 (step once superposes), the transmission pilot signal of preceding half time slot of each forward direction output time solt that will be added to through the indication information of gain process; S1102-5 (repeating step) will repeat through the indication information of overlap-add procedure once; And S1102-6 (secondary stack step), the transmission pilot signal of back half time slot of each forward direction output time solt that will be added to through the indication information of reprocessing.
Wherein, in step S1104, resolve indication information by going repetition, despreading, maximum-likelihood decoding to operate.
The 6th embodiment
In according to a sixth embodiment of the invention, a kind of data transmission mode setting and detection method are provided.Its with the 4th and the 5th embodiment in the different of method that provide be that channel is provided with composition step difference included in the step, therefore hereinafter, will omit being repeated in this description to its same section.
Describe the sixth embodiment of the present invention hereinafter with reference to accompanying drawing, wherein, Figure 12 is the flow chart that data transmission mode setting and the detection method of the 6th embodiment are shown.
As shown in figure 12, this method may further comprise the steps: step S1202 (channel is provided with step), fl transmission pattern indicating channel is set, and wherein, fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And step S1204 (data transmission format detection step), resolve indication information, thereby detect data transmission format by the transmission of fl transmission pattern indicating channel.
Wherein, step S1202 further may further comprise the steps: S1202-1 (modulation step), carry out sign map to indication information; S1202-2 (gain step) will multiply by certain gain through the indication information of ovennodulation; S1202-3 (spread spectrum step) is used for the indication information through gain process is carried out spread processing; And S1202-4 (stack step), be used for and will transmit in forward direction MAC channel in the mode of code division multiplexing through the be added to signal of other control channels of the indication information of spread processing.
Wherein, the spread-spectrum orthogonal sign indicating number that uses at S1202-3 (spread spectrum step) is reserved by system or by the wireless access network assignment.
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 (26)
1. data transmission mode setting and checkout gear is characterized in that comprise: channel is provided with the unit, be positioned at data sending terminal, be used to be provided with fl transmission pattern indicating channel, wherein, described fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And
The data transmission format detecting unit is positioned at data receiver, is used to resolve the described indication information by described fl transmission pattern indicating channel transmission, thereby detects data transmission format.
2. data transmission mode setting according to claim 1 and checkout gear is characterized in that, described indication information is the information of at least 1 bit.
3. data transmission mode setting according to claim 1 and checkout gear is characterized in that, described data transmission format comprises code division multiplexing pattern and OFDM pattern.
4. data transmission mode setting according to claim 3 and checkout gear, it is characterized in that, when described data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system.
5. data transmission mode setting according to claim 4 and checkout gear, it is characterized in that the operating parameter that described OFDM form transmission is adopted comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.
6. data transmission mode setting according to claim 3 and checkout gear is characterized in that, when described data transmission format is the OFDM pattern, and the parameter that described indication information further indicates the OFDM form to adopt.
7. data transmission mode setting according to claim 1 and checkout gear is characterized in that, described channel is provided with the unit and further comprises:
Optimize coding module, be used for described indication information is optimized coding;
The scrambler module is connected to described optimization coding module, is used for carrying out scrambler through the described indication information of optimizing coding, and to form code division multiplexing with traffic channel data, wherein, selected scrambler sequence is relevant with the Traffic Channel scrambler sequence;
Replicated blocks are connected to described scrambler module, are used for the described indication information through described scrambler module scrambler is repeated pre-determined number; And
Laminating module is connected to described replicated blocks, the fragment that the fragment that is used for forming by described replicated blocks is added to and is produced by Traffic Channel.
8. data transmission mode setting according to claim 7 and checkout gear is characterized in that, described data transmission format detecting unit by go repetition, remove scrambler, decode operation resolves described indication information.
9. data transmission mode setting according to claim 8 and checkout gear is characterized in that, after parsing described indication information, by the method for interference eliminated the signal of described fl transmission pattern indicating channel transmission are removed from superposed signal.
10. data transmission mode setting according to claim 1 and checkout gear is characterized in that, described channel is provided with the unit and further comprises:
The block encoding module is used for described indication information is encoded;
Spread spectrum module is connected to the block encoding module, is used for the described indication information through coding is carried out spread processing;
Gain module is connected to described spread spectrum module, is used for the described indication information through spread spectrum be multiply by certain gain;
Laminating module is connected to described gain module, and being used for will be through the be added to transmission pilot signal of preceding half time slot of each forward direction output time solt of the described indication information of gain process; And
Replicated blocks are used for the described indication information by described laminating module output is repeated once;
Wherein, described indication information after repeating through described replicated blocks by the be added to transmission pilot signal of back half time slot of each forward direction output time solt of described laminating module.
11. data transmission mode setting according to claim 10 and checkout gear is characterized in that, described data transmission format detecting unit is resolved described indication information by going repetition, despreading, maximum-likelihood decoding to operate.
12. data transmission mode setting according to claim 1 and checkout gear is characterized in that, described channel is provided with the unit and further comprises:
Modulation module is used for described indication information is carried out sign map;
Gain module is connected to described modulation module, is used for the described indication information by described modulation module output be multiply by certain gain;
Spread spectrum module is connected to described gain module, is used for the described indication information by described gain module output is carried out spread processing; And
Laminating module is connected to described spread spectrum module, is used for the be added to signal of other control channels of described indication information with the output of described spread spectrum module, transmits in forward direction MAC channel in the mode of code division multiplexing.
13. data transmission mode setting according to claim 12 and checkout gear is characterized in that, the spread-spectrum orthogonal sign indicating number that described spread spectrum module is used is by system's reservation or by the wireless access network assignment.
14. data transmission mode setting and detection method are used data transmission mode setting according to claim 1 and checkout gear, it is characterized in that, may further comprise the steps:
Channel is provided with step, and fl transmission pattern indicating channel is set, and wherein, described fl transmission pattern indicating channel carries and is used in reference to the indication information that shows data-transmission mode; And
Data transmission format detects step, is used to resolve the described indication information by described fl transmission pattern indicating channel transmission, thereby detects data transmission format.
15. data transmission mode setting according to claim 14 and detection method is characterized in that, described indication information is the information of at least 1 bit.
16. data transmission mode setting according to claim 14 and detection method is characterized in that, described data transmission format comprises code division multiplexing pattern and OFDM pattern.
17. data transmission mode setting according to claim 16 and detection method, it is characterized in that, when described data transmission format is the OFDM pattern, the pre-defined one group of operating parameter that adopts based on the OFDM form of different application scene of system.
18. data transmission mode setting according to claim 17 and detection method, it is characterized in that the operating parameter that described OFDM form transmission is adopted comprises subcarrier spacing length, circulating prefix-length, windowing length, sampling rate, subcarrier number at least.
19. data transmission mode setting according to claim 16 and detection method is characterized in that, when described data transmission format is the OFDM pattern, and the parameter that described indication information further indicates the OFDM form to adopt.
20. data transmission mode setting according to claim 14 and detection method is characterized in that, described channel is provided with step and further may further comprise the steps:
Optimize coding step, described indication information is optimized coding;
The scrambler step, to carrying out scrambler through the described indication information of optimizing coding, to form code division multiplexing with traffic channel data, wherein, selected scrambler sequence is relevant with the Traffic Channel scrambler sequence;
Repeating step will repeat pre-determined number through the described indication information that scrambler is handled; And
Stack step, the fragment that will form in described repeating step are added on the fragment that is produced by Traffic Channel.
21. data transmission mode setting according to claim 20 and detection method is characterized in that, detect in the step in described data transmission format, by go repetition, remove scrambler, decode operation resolves described indication information.
22. data transmission mode setting according to claim 21 and detection method is characterized in that, after described data transmission format detects step, further may further comprise the steps:
Signal is removed step, by the method for interference eliminated the signal of described fl transmission pattern indicating channel transmission is removed from superposed signal.
23. data transmission mode setting according to claim 14 and detection method is characterized in that, described channel is provided with step and further may further comprise the steps:
The block encoding step is encoded to described indication information;
The spread spectrum step is carried out spread spectrum to the described indication information through coding;
The gain step will multiply by certain gain through the described indication information of spread spectrum;
The step that once superposes, the transmission pilot signal of preceding half time slot of each forward direction output time solt that will be added to through the described indication information of gain process;
Repeating step is used for the described indication information through an overlap-add procedure is repeated once; And
Secondary stack step, the transmission pilot signal of back half time slot of each forward direction output time solt that will be added to through the described indication information of reprocessing.
24. data transmission mode setting according to claim 23 and detection method is characterized in that, detect in the step in described data transmission format, resolve described indication information by going repetition, despreading, maximum-likelihood decoding to operate.
25. data transmission mode setting according to claim 14 and detection method is characterized in that, described channel is provided with step and further may further comprise the steps:
Modulation step is carried out sign map to described indication information;
The gain step will multiply by certain gain through the described indication information of ovennodulation;
The spread spectrum step is used for the described indication information through gain process is carried out spread processing; And
The stack step is used for and will transmits in forward direction MAC channel in the mode of code division multiplexing through the be added to signal of other control channels of the described indication information of spread processing.
26. data transmission mode setting according to claim 25 and detection method is characterized in that, the spread-spectrum orthogonal sign indicating number that described spread spectrum step is used is by system's reservation or by the wireless access network assignment.
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| CNA2006101287841A CN101141756A (en) | 2006-09-08 | 2006-09-08 | Data transmission mode setting and detecting apparatus and method |
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