CN1929334B - Wireless signal relay processing method and device - Google Patents
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Abstract
This invention discloses one wireless signal relay process method and device, which comprises the following steps: adding down relay frames into signal frame and using down relay frame to base station to send down business information; the relay device receives down relay frame to extract down business information and using down frame to send the down relay signals with down business information; adding upper relay frame in upper signal frame and using upper frame receive terminal to send upper business information to base station.
Description
Technical field
The present invention relates to the relay process technology, relate in particular to a kind of wireless signal relay process method and device.
Background technology
In mobile communication system, the travelling carriage in base station and this base station coverage area communicates.In the overlay area of base station, owing to reasons such as blocking of building, can form the abominable area of some communication conditions, the signal that makes the base station send is difficult to be sent to these regional travelling carriages, so need utilize the relay process device wireless signal between base station and the travelling carriage to be amplified the coverage that enlarges the sub-district usually.The relay process device is widely used in having the low advantage of the cost of arranging net in the mobile communication system such as GSM and CDMA at present.
Figure 1 shows that the structural representation of wireless signal relay process device in the prior art, as seen from the figure, the structure of this relay process device mainly comprises donor antenna, first duplexer, upward signal processing module, downstream signal processing module, second duplexer and retransmitting antenna.Wherein donor antenna is a directional antenna, is used for communicating with the base station, is generally plate aerial or parabolic antenna, and donor antenna is connected respectively with the input of upward signal processing module and the output of downstream signal processing module by first duplexer; Retransmitting antenna is directional antenna or omnidirectional antenna, is used for communicating with terminal, and retransmitting antenna is connected respectively with the output of upward signal processing module and the input of downstream signal processing module by second duplexer.The upward signal processing module has identical structure with the downstream signal processing module, connects and composes in turn by low noise amplifier, frequency range selector, filter and power amplifier.
Be example below with the down direction, relay process device shown in Figure 1 is illustrated the process that wireless signal carries out processing and amplifying.The downstream signal that send the base station is received by donor antenna, has the downlink business subframe in this downstream signal frame structure, is used for the bearing downlink business information.First duplexer is isolated low level downstream signal from donor antenna, to amplify in the low level downstream signal input low noise amplifier, select the downlink frequency range then in the input band selector, then by the out-of-band noise in the filter filtering downstream signal, be coupled on the retransmitting antenna by second duplexer after being amplified to the power of appointment in the downstream signal input power amplifier with the filtering out-of-band noise, downstream signal launched by retransmitting antenna.
In the above-mentioned relay process device, the filter that is arranged in upward signal processing module and downstream signal processing module only filtering the out-of-band noise of upward signal and downstream signal, but can't filtering to the in-band noise in upward signal and the downstream signal, cause power amplifier carrying out also having amplified the in-band noise in the signal when signal amplifies, because noise can take the Radio Resource of sub-district, therefore can cause the decline of cell capacity.
Summary of the invention
The invention provides a kind of wireless signal relay process method and device, in order to solve in the prior art in the wireless signal relay process process in amplifying signal also the problem that can amplify noise.
Technical solution of the present invention is as follows:
A kind of wireless signal relay process method, described signal are the downstream signal that send the base station in the wireless communication system of TDD mode; Comprise step:
In the downstream signal frame, increase downlink relay sub-frame, the synchronization burst through ovennodulation that carries targeting sequencing is at first launched in the base station on downlink relay sub-frame, and by the burst of the downlink relay in downlink relay sub-frame bearing downlink business information, described base station indicates code modulation mode and the allocation of radio resources mode corresponding to the downlink relay burst of relay process device in the configuration burst of downlink relay sub-frame, described base station indicates the downlink business burst of configuration burst carrying in the downlink business subframe of relay process device and the code modulation mode and the allocation of radio resources mode of uplink service burst in the burst of the repeat broadcast of downlink relay sub-frame, and the broadcast message that sends to terminal of carrying in the broadcast burst of the downlink business subframe of relay process device;
The relay process device receives configuration burst in the downlink relay sub-frame also to carry out radio frequency processing, mould/number conversion and demodulating and decoding to it and handles, and obtains in the downlink relay sub-frame code modulation mode and allocation of radio resources mode at the downlink relay burst of self, and
Receive the downlink relay burst of downlink relay sub-frame, it is carried out radio frequency processing and mould/number conversion, utilize with the corresponding demodulating and decoding mode of described code modulation mode and from the downlink relay burst, obtain downlink business information at self, and with this downlink business information stores in storage medium;
The relay process device is launched the synchronization burst through ovennodulation on the downlink business subframe, and
Configuration information to the downlink business subframe carries out coded modulation processing, D/A switch and radio frequency processing and it is carried on the terminal that sends in the configuration burst in the coverage, and
From described storage medium, extract downlink business information, the regulation of repeat broadcast burst is carried out to downlink business information that coded modulation is handled and it is carried in downlink business burst of regulation in the downlink relay sub-frame of sending according to the base station, sends to the terminal in the coverage after D/A switch and radio frequency processing.
Described relay process device is undertaken by synchronization burst and the base station that launch on downlink relay sub-frame the reception base station synchronously.
The identical broadcast message of issuing terminal of carrying takies identical Radio Resource in the broadcast burst of the downlink business subframe of described base station and relay process device, adopts identical code modulation mode.
The targeting sequencing of the synchronization burst carrying of described relay process device downlink relay sub-frame is identical with the targeting sequencing of the downlink business synchronizing sub-frame burst carrying of described base station.
The configuration information of carrying is the code modulation mode and the allocation of radio resources mode of downlink business information in the configuration burst of the downlink business subframe of described base station and relay process device, the configuration burst of base station and relay process device takies identical Radio Resource, adopt identical code modulation mode, carry identical configuration information.
A kind of wireless signal relay process method, described signal are the upward signal that terminal sends to the base station in the wireless communication system of TDD mode; Comprise step:
In the upward signal frame, increase uplink relay subframe;
The relay process device utilizes the request of access at random of uplink service subframe receiving terminal, and
The upward signal that the relay process device sends terminal in the uplink service burst of uplink service subframe carries out radio frequency processing and mould/number conversion, according to the content of the burst of the configuration in the base station down relay sub-frame upward signal being carried out demodulating and decoding handles, obtain uplink service information, it is stored in the storage medium;
The relay process device extracts uplink service information from described storage medium, according to the regulation of configuration burst in the base station down relay sub-frame uplink service information is carried out coded modulation and handle; And
Uplink service information-bearing after the coded modulation in the uplink relay burst of the configuration burst defined of base station down relay sub-frame, is sent to the base station after D/A switch and radio frequency processing.
Described base station and relay process device in the uplink service subframe receiving terminal insert request at random the time shared Radio Resource identical.
Configuration burst in the base station that the modulation system of the uplink service information of described terminal and allocation of radio resources mode are received by terminal or the downlink business subframe of relay process device indicates.
The uplink relay burst shared Radio Resource non-overlapping copies of relay process device in the described base station range in base station transmission uplink relay subframe.
A kind of wireless signal relay process device comprises antenna and the duplexer that is connected with antenna; Also comprise downlink relay sub-frame receiving element, downlink business memory cell and downlink business subframe transmitter unit;
The downlink relay sub-frame receiving element comprises the first downlink radio frequency module, descending mould/number conversion module and descending demodulating and decoding module, wherein:
The first downlink radio frequency module: be connected with duplexer, be used for the downstream signal that antenna receives is carried out low noise amplification, filtering and frequency-conversion processing;
Descending mould/number conversion module: be connected with the first downlink radio frequency module, the descending analog signal conversion that the first downlink radio frequency module is exported is descending digital signal;
Descending demodulating and decoding module: be connected between descending mould/number conversion module and the downlink business memory cell, the descending digital signal of descending mould/number conversion module output is carried out the demodulating and decoding processing obtain downlink business information, deposit this downlink business information in the downlink business memory cell;
Described downlink business subframe transmitter unit comprises downlink coding modulation module, descending D/A switch module and the second downlink radio frequency module, wherein:
Downlink coding modulation module: be connected with the downlink business memory cell, therefrom extract downlink business information and it is carried out chnnel coding, the signal behind the coding is modulated to descending digital signal;
Descending D/A switch module: be connected with the downlink coding modulation module, the descending digital signal that the downlink coding modulation module is exported is converted to descending analog signal;
The second downlink radio frequency module: be connected between descending D/A switch module and the duplexer, the descending analog signal of descending D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
A kind of wireless signal relay process device comprises antenna and the duplexer that is connected with antenna; Also comprise uplink service subframe receiving element, uplink service memory cell and uplink relay subframe transmitter unit;
Described uplink service subframe receiving element comprises the first up radio-frequency module, up mould/number conversion module and uplink demodulation decoder module:
The first up radio-frequency module: be connected with duplexer, be used for the upward signal that antenna receives is carried out low noise amplification, filtering and frequency-conversion processing;
Up mould/number conversion module: be connected with the first up radio-frequency module, the up analog signal conversion that the first up radio-frequency module is exported is a digital uplink signal;
Uplink demodulation decoder module: be connected between up mould/number conversion module and the uplink service memory cell, the digital uplink signal of up mould/number conversion module output is carried out demodulating and decoding handle and obtain uplink service information, deposit this uplink service information in the uplink service memory cell;
Described uplink relay subframe transmitter unit comprises up code modulation module, up D/A switch module and the second up radio-frequency module:
Up code modulation module: be connected with the uplink service memory cell, therefrom extract uplink service information and it is carried out chnnel coding, the signal behind the coding is modulated to digital uplink signal;
Up D/A switch module: be connected with up code modulation module, the digital uplink signal that up code modulation module is exported is converted to up analog signal;
The second up radio-frequency module: be connected between up D/A switch module and the duplexer, the up analog signal of up D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
Beneficial effect of the present invention is as follows:
Wireless signal relay process device of the present invention only needs a cover antenna and a Transmit-Receive Unit, and it is simple in structure, and is easy for installation.This relay process device carries out demodulating and decoding by the signal that antenna is received to be handled, extract wherein loaded service information, again this business information being carried out coded modulation then handles and sends, disturb thereby effectively removed the in-band noise in the signal, reduced waste of radio resources.
Description of drawings
Fig. 1 is the structural representation of wireless signal relay process device in the prior art;
Fig. 2 is the structural representation of wireless signal relay process device of the present invention;
Fig. 3 is the base station frame of employing tdma system of the present invention and the structural representation of repeater frame;
Fig. 4 is the base station frame of employing OFDMA of the present invention system and the structural representation of repeater frame;
Fig. 5 is the flow chart of downstream signal relay process method of the present invention;
Fig. 6 is the flow chart of upward signal relay process method of the present invention.
Embodiment
The present invention proposes a kind of relay process method and device, when adopting the present invention that wireless signal is carried out relay process, the in-band noise that can effectively remove in the signal disturbs, and below in conjunction with each accompanying drawing main realization principle of the present invention and embodiment thereof is explained in detail.
Wireless signal relay process method of the present invention and device are applicable to the wireless communication system that adopts TDD mode.
Figure 2 shows that the structural representation of wireless signal relay process device of the present invention, as seen from the figure, relay process device of the present invention comprises antenna, the duplexer that is connected with antenna, the uplink service subframe receiving element that connects duplexer respectively, the downlink relay sub-frame receiving element, downlink business subframe transmitter unit and uplink relay subframe transmitter unit, be connected the uplink service memory cell between uplink service subframe receiving element and the uplink relay subframe transmitter unit, be connected the downlink business memory cell between downlink relay sub-frame receiving element and the downlink business subframe transmitter unit.
The downstream signal that antenna sends the base station that receives sends to the downlink relay sub-frame receiving element by duplexer, the downlink relay sub-frame receiving element carries out radio frequency processing to this downstream signal, mould/number conversion and demodulating and decoding are handled, therefrom extract downlink business information, with this downlink business information stores in the downlink business memory cell, downlink business subframe transmitter unit extracts downlink business information from the downlink business memory cell, this downlink business information is carried out coded modulation to be handled, D/A switch and radio frequency processing are transmitted to terminal by duplexer from antenna with the downstream signal that obtains after handling.
The downlink relay sub-frame receiving element mainly comprises the first downlink radio frequency module, descending mould/number conversion module and the descending demodulating and decoding module that connects in turn. wherein the first downlink radio frequency module is connected with duplexer, the downstream signal that antenna is received carries out low noise amplification, filtering and frequency-conversion processing, and the descending analog signal that will obtain after will handling sends to descending mould/number conversion module; Descending mould/number conversion module is connected with the first downlink radio frequency module, and the descending analog signal conversion that the first downlink radio frequency module is exported is descending digital signal; Descending demodulating and decoding module is connected between descending mould/number conversion module and the downlink business memory cell, be used for that the descending digital signal of descending mould/number conversion module output is carried out the demodulating and decoding processing and obtain downlink business information, this downlink business information is sent into the downlink business memory cell store.
Downlink business subframe transmitter unit mainly comprises downlink coding modulation module, descending D/A switch module and the second downlink radio frequency module that connects in turn.Wherein the downlink coding modulation module is connected with the downlink business memory cell, be used for extracting downlink business information and it being carried out chnnel coding from the downlink business memory cell, signal behind the coding is modulated to descending digital signal, should descending digital signal imports in the descending D/A switch module and handle; Descending D/A switch module is connected with the downlink coding modulation module, and the descending digital signal that the downlink coding modulation module is exported is converted to descending analog signal; The second downlink radio frequency module is connected between descending D/A switch module and the duplexer, and the descending analog signal of descending D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
The upward signal that antenna sends the terminal that receives sends to uplink service subframe receiving element by duplexer, uplink service subframe receiving element carries out radio frequency processing to this upward signal, mould/number conversion and demodulating and decoding are handled, therefrom extract uplink service information, with this uplink service information stores in the uplink service memory cell, the uplink relay subframe transmitter unit extracts uplink service information from the uplink service memory cell, this uplink service information is carried out coded modulation to be handled, D/A switch and radio frequency processing are transmitted to base station by duplexer from antenna with the upward signal that obtains after handling.
Uplink service subframe receiving element mainly comprises the first up radio-frequency module, up mould/number conversion module and the up code modulation module that connects in turn.Wherein the first up radio-frequency module is connected with duplexer, and the upward signal that antenna is received carries out low noise amplification, filtering and frequency-conversion processing, and the up analog signal that will obtain after will handling sends to up mould/number conversion module; Up mould/number conversion module is connected with the first up radio-frequency module, and the up analog signal conversion that the first up radio-frequency module is exported is a digital uplink signal; The uplink demodulation decoder module is connected between up mould/number conversion module and the uplink service memory cell, be used for that the digital uplink signal that up mould/number conversion module is exported is carried out the demodulating and decoding processing and obtain uplink service information, and this uplink service information is sent into the uplink service memory cell store.
The uplink relay subframe transmitter unit mainly comprises up code modulation module, up D/A switch module and the second up radio-frequency module that connects in turn.Wherein up code modulation module is connected with the uplink service memory cell, is used for extracting uplink service information and it being carried out chnnel coding from the uplink service memory cell, and the signal behind the coding is modulated to digital uplink signal; Up D/A switch module is connected with up code modulation module, and the digital uplink signal that up code modulation module is exported is converted to up analog signal; The second up radio-frequency module is connected between up D/A switch module and the duplexer, and the up analog signal of up D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
The present invention is applicable to the wireless communication system that adopts TDD mode, as TDMA (TimeDivision Multiple Access, time division multiple access) system, OFDMA (Orthogonal frequencydivision multiplexing Access, OFDM) system etc., be example with the base station frame of the structural representation of the base station frame of tdma system shown in Figure 3 and repeater frame and OFDMA system shown in Figure 4 and the structure of repeater frame below, wireless relay processing method of the present invention is described.
Base station frame among Fig. 3 and Fig. 4 is the frame structure schematic diagram of base station signal, repeater frame is the frame structure schematic diagram of the repeating signal of the relay process device in the base station range. and the present invention has increased downlink relay sub-frame and uplink relay subframe in the frame structure of base station frame and repeater frame. and wherein the downlink relay sub-frame in the frame of base station is used to carry the downlink business information that sends to all relay process devices in the base station range, uplink relay subframe in the frame of base station is used to receive the uplink service information of being transmitted by the relay process device, downlink business subframe in the frame of base station is used to carry the downlink business information that sends to terminal, uplink service subframe in the frame of base station is used for the uplink service information that receiving terminal sends. and the downlink relay sub-frame of repeater frame is used to receive the downlink business information of sending the base station, the uplink service information that uplink relay subframe carrying terminal in the repeater frame is sent, send it to the base station, downlink business subframe in the repeater frame is used to carry the downlink business information that sends to terminal, and the uplink service subframe in the repeater frame is used for the uplink service information that receiving terminal sends.
In downlink relay sub-frame, the base station is in emission state, and the relay process device is in accepting state.Comprise synchronization burst, configuration burst, repeat broadcast burst and the burst of a plurality of downlink relay in the downlink relay sub-frame of base station.Wherein carry targeting sequencing in the synchronization burst, be used for the relay process device and carry out synchronously with the base station; The configuration information of carrying is used to indicate code modulation mode and the allocation of radio resources mode corresponding to the downlink relay burst of relay process device in the configuration burst, and the coded modulation pattern and the allocation of radio resources mode of the burst of the uplink relay of the uplink relay subframe of relay process device; Repeat broadcast burst has indicated the downlink business burst of configuration burst carrying in the downlink business subframe of relay process device and the code modulation mode and the allocation of radio resources mode of uplink service burst, and the broadcast message that sends to terminal of the broadcast burst of relay process device carrying; The downlink relay broadcast burst is used to carry the downlink business information that sends to the relay process device in the base station range.
In uplink relay subframe, the base station is in accepting state, and the relay process device is in emission state.Comprise uplink relay burst and access burst at random in the uplink relay subframe of relay process device.Wherein carried the uplink service information that sends to the base station in the uplink relay burst; Carried the request of access at random that the relay process device sends to the base station at random in the access burst.
In the downlink business subframe, base station and relay process device all are in emission state.Include synchronization burst, configuration burst, broadcast burst and downlink business burst in the downlink business subframe of base station and relay process device.Wherein carry targeting sequencing in the synchronization burst, be used for terminal and carry out synchronously with base station and relaying place device; Carry configuration information in the configuration burst, be used for indicating the coded modulation pattern and the allocation of radio resources mode of uplink service burst and downlink business burst to terminal; Broadcast burst is used to carry the broadcast message that is broadcast to terminal; The downlink business burst is used to carry the downlink business information that sends to terminal.The base station sends identical synchronization burst with the relay process device on identical Radio Resource; On identical Radio Resource, send identical configuration burst; On identical Radio Resource, send identical broadcast burst.
In the uplink service subframe, base station and relay process device all are in accepting state.The uplink service subframe of base station and relay process device includes uplink service burst and access burst at random.Wherein the uplink service burst is used to carry the uplink service information of terminal; Access burst is used for the request of access at random that receiving terminal sends at random.
Respectively the process of downstream signal relay process of the present invention and upward signal relay process is described below.
Figure 5 shows that the flow chart of downstream signal relay process of the present invention, referring to Fig. 5 and in conjunction with Fig. 3, Fig. 4, downstream signal relay process process of the present invention is as follows:
Step S10, in the downstream signal frame, increase downlink relay sub-frame;
The synchronization burst through ovennodulation is at first launched in step S11, base station on downlink relay sub-frame, when sending synchronization burst in the base station, each relay process device is undertaken synchronously by the synchronization burst and the base station that receive in the downlink relay sub-frame;
Configuration burst and repeat broadcast burst are launched in step S12, base station behind synchronization burst, carry configuration information in the configuration burst, be used to notify the relay process device to be used for the allocation of radio resources mode and the coded modulation pattern of uplink relay burst and downlink relay burst; Carried the code modulation mode and the allocation of radio resources mode of the downlink business burst of relay process device in the repeat broadcast burst, and the broadcast message that sends to terminal of carrying in the broadcast burst of relay process device;
Step S13, when sending the configuration burst and during the repeat broadcast burst in the base station, each relay process device receives this configuration burst and repeat broadcast burst, it is carried out demodulating and decoding handle the beared information obtain wherein, from the configuration burst, obtain in the downlink relay sub-frame allocation of radio resources mode and code modulation mode at the downlink relay burst of self; From the relaying broadcast burst, obtain the code modulation mode and the allocation of radio resources mode of the downlink business burst and the uplink service burst of configuration burst carrying in the downlink business subframe, and the broadcast message that sends to terminal of carrying in the broadcast burst;
Step S14, relay process device receive the downlink relay burst of sending the base station, and utilize the code modulation mode that obtains among the step S12 and allocation of radio resources mode to obtain downlink business information at self to carry out demodulating and decoding at the downlink relay burst of self;
Step S15, relay process device with the downlink business information stores obtained in the downlink business memory cell;
Step S16, relay process device at first launch synchronization burst through ovennodulation in the downlink business subframe, the relay process device is launched the configuration burst behind synchronization burst, the configuration information of carrying is used for being used for to the terminal notice allocation of radio resources mode and the coded modulation pattern of uplink service burst and downlink business burst in the configuration burst, the relay process device carries the broadcast message that sends to terminal described in the step S13 in configuration burst back emission broadcast burst in the broadcast burst;
The base station is in emission state equally in the downlink business subframe, synchronization burst through ovennodulation is at first launched in the downlink business subframe in the base station, the targeting sequencing of the synchronization burst in the downlink business subframe of the targeting sequencing of this synchronization burst and relay process device is identical, and shared Radio Resource is identical; The configuration burst is launched in the base station behind synchronization burst, carry configuration information in the configuration burst, be used for being used for the allocation of radio resources mode and the code modulation mode of uplink service burst and downlink business burst to the terminal notice, the configuration information that this configuration burst is carried is identical with the configuration information that the configuration burst of the downlink business subframe of relay process device is carried, and shared Radio Resource is identical; The base station is in configuration burst back emission broadcast burst, carry the broadcast message that sends to terminal in the broadcast burst, the broadcast message that this broadcast burst is carried is identical with the broadcast message that the broadcast burst of the downlink business subframe of relay process device is carried, and shared Radio Resource is identical;
Step S17, relay process device extract downlink business information from the downlink business memory cell, downlink business information is carried out coded modulation, after D/A switch and the radio frequency processing, send to the terminal in the coverage in the downlink business burst;
Base station terminal in coverage in the downlink business burst sends downlink business information.
In above-mentioned relay process process, the relay process device extracts downlink business information by the demodulating and decoding mode from the downstream signal frame, remove the interference in the information, realized when amplifying downstream signal, removing in the lump the purpose that the in-band noise in the downstream signal disturbs.
Figure 6 shows that the flow chart of upward signal relay process of the present invention, referring to Fig. 5 and in conjunction with Fig. 3, Fig. 4, upward signal relay process process of the present invention is as follows:
Step S20, in the upward signal frame, increase uplink relay subframe;
Step S21, terminal are sent the request that inserts at random, and the relay process device utilizes the access burst at random of uplink service subframe to receive this and inserts request at random;
Step S22, terminal send upward signal to the relay process device, and the configuration burst in the base station that the modulation system of the uplink service information in this upward signal and allocation of radio resources mode are received by terminal or the downlink business subframe of relay process device indicates;
The upward signal that step S23, relay process device utilize the uplink service burst receiving terminal of uplink service subframe to send, it is carried out radio frequency processing and mould/number conversion, according to the content of the burst of the configuration in the downlink business subframe upward signal being carried out demodulating and decoding handles, obtain uplink service information, it is stored in the uplink service memory cell;
Step S24, relay process device extract uplink service information from the uplink service memory cell, according to the regulation of configuration burst in the base station down relay sub-frame uplink service information being carried out coded modulation handles, uplink service information-bearing after the coded modulation in the uplink relay burst of the configuration burst defined of base station down relay sub-frame, is sent to the base station after D/A switch and radio frequency processing;
Step S25, base station receive the uplink service information that the relay process device is transmitted in the uplink relay burst of uplink relay subframe.
The base station takies the request of access at random that identical Radio Resource comes receiving terminal with the relay process device in the uplink service subframe.
In order to reduce interference, in said process, when any one the relay process device in the base station range when the base station sends the uplink relay burst, other relay process device should be in idle burst, i.e. the shared Radio Resource non-overlapping copies of the uplink relay of each relay process device burst.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. wireless signal relay process method, described signal are the downstream signal that send the base station in the wireless communication system of TDD mode; It is characterized in that, comprise step:
In the downstream signal frame, increase downlink relay sub-frame, the synchronization burst through ovennodulation that carries targeting sequencing is at first launched in the base station on downlink relay sub-frame, and by the burst of the downlink relay in downlink relay sub-frame bearing downlink business information, described base station indicates code modulation mode and the allocation of radio resources mode corresponding to the downlink relay burst of relay process device in the configuration burst of downlink relay sub-frame, described base station indicates the downlink business burst of configuration burst carrying in the downlink business subframe of relay process device and the code modulation mode and the allocation of radio resources mode of uplink service burst in the burst of the repeat broadcast of downlink relay sub-frame, and the broadcast message that sends to terminal of carrying in the broadcast burst of the downlink business subframe of relay process device;
The relay process device receives configuration burst in the downlink relay sub-frame also to carry out radio frequency processing, mould/number conversion and demodulating and decoding to it and handles, and obtains in the downlink relay sub-frame code modulation mode and allocation of radio resources mode at the downlink relay burst of self, and
Receive the downlink relay burst of downlink relay sub-frame, it is carried out radio frequency processing and mould/number conversion, utilize with the corresponding demodulating and decoding mode of described code modulation mode and from the downlink relay burst, obtain downlink business information at self, and with this downlink business information stores in storage medium;
The relay process device is launched the synchronization burst through ovennodulation on the downlink business subframe, and
Configuration information to the downlink business subframe carries out coded modulation processing, D/A switch and radio frequency processing and it is carried on the terminal that sends in the configuration burst in the coverage, and
From described storage medium, extract downlink business information, the regulation of repeat broadcast burst is carried out to downlink business information that coded modulation is handled and it is carried in downlink business burst of regulation in the downlink relay sub-frame of sending according to the base station, sends to the terminal in the coverage after D/A switch and radio frequency processing.
2. wireless signal relay process method according to claim 1 is characterized in that, the relay process device is undertaken by synchronization burst and the base station that launch on downlink relay sub-frame the reception base station synchronously.
3. wireless signal relay process method according to claim 1, it is characterized in that, the identical broadcast message of issuing terminal of carrying takies identical Radio Resource in the broadcast burst of the downlink business subframe of described base station and relay process device, adopts identical code modulation mode.
4. wireless signal relay process method according to claim 1 is characterized in that, the targeting sequencing of the synchronization burst carrying of described relay process device downlink relay sub-frame is identical with the targeting sequencing of the downlink business synchronizing sub-frame burst carrying of described base station.
5. wireless signal relay process method according to claim 1, it is characterized in that, the configuration information of carrying is the code modulation mode and the allocation of radio resources mode of downlink business information in the configuration burst of the downlink business subframe of described base station and relay process device, the configuration burst of base station and relay process device takies identical Radio Resource, adopt identical code modulation mode, carry identical configuration information.
6. wireless signal relay process method, described signal are the upward signal that terminal sends to the base station in the wireless communication system of TDD mode; It is characterized in that, comprise step:
In the upward signal frame, increase uplink relay subframe;
The relay process device utilizes the request of access at random of uplink service subframe receiving terminal, and
The upward signal that the relay process device sends terminal in the uplink service burst of uplink service subframe carries out radio frequency processing and mould/number conversion, according to the content of the burst of the configuration in the base station down relay sub-frame upward signal being carried out demodulating and decoding handles, obtain uplink service information, it is stored in the storage medium;
The relay process device extracts uplink service information from described storage medium, according to the regulation of configuration burst in the base station down relay sub-frame uplink service information is carried out coded modulation and handle; And
Uplink service information-bearing after the coded modulation in the uplink relay burst of the configuration burst defined of base station down relay sub-frame, is sent to the base station after D/A switch and radio frequency processing.
7. wireless signal relay process method according to claim 6 is characterized in that, described base station and relay process device in the uplink service subframe receiving terminal insert request at random the time shared Radio Resource identical.
8. wireless signal relay process method according to claim 6, it is characterized in that the configuration burst in the base station that the modulation system of the uplink service information of described terminal and allocation of radio resources mode are received by terminal or the downlink business subframe of relay process device indicates.
9. wireless signal relay process method according to claim 6 is characterized in that, the uplink relay burst shared Radio Resource non-overlapping copies of the relay process device in the described base station range in base station transmission uplink relay subframe.
10. wireless signal relay process device, described signal are the downstream signal that send the base station in the wireless communication system of TDD mode, and this device comprises antenna and the duplexer that is connected with antenna; It is characterized in that, also comprise downlink relay sub-frame receiving element, downlink business memory cell and downlink business subframe transmitter unit;
Described downlink relay sub-frame receiving element comprises the first downlink radio frequency module, descending mould/number conversion module and descending demodulating and decoding module, wherein:
The first downlink radio frequency module: be connected with duplexer, be used for the downstream signal that antenna receives is carried out low noise amplification, filtering and frequency-conversion processing;
Descending mould/number conversion module: be connected with the first downlink radio frequency module, the descending analog signal conversion that the first downlink radio frequency module is exported is descending digital signal;
Descending demodulating and decoding module: be connected between descending mould/number conversion module and the downlink business memory cell, the descending digital signal of descending mould/number conversion module output is carried out the demodulating and decoding processing obtain downlink business information, deposit this downlink business information in the downlink business memory cell;
Described downlink business subframe transmitter unit comprises downlink coding modulation module, descending D/A switch module and the second downlink radio frequency module, wherein:
Downlink coding modulation module: be connected with the downlink business memory cell, therefrom extract downlink business information and it is carried out chnnel coding, the signal behind the coding is modulated to descending digital signal;
Descending D/A switch module: be connected with the downlink coding modulation module, the descending digital signal that the downlink coding modulation module is exported is converted to descending analog signal;
The second downlink radio frequency module: be connected between descending D/A switch module and the duplexer, the descending analog signal of descending D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
11. a wireless signal relay process device, described signal are the upward signal that send the base station in the wireless communication system of TDD mode, this device comprises antenna and the duplexer that is connected with antenna; It is characterized in that, also comprise uplink service subframe receiving element, uplink service memory cell and uplink relay subframe transmitter unit;
Described uplink service subframe receiving element comprises the first up radio-frequency module, up mould/number conversion module and uplink demodulation decoder module:
The first up radio-frequency module: be connected with duplexer, be used for the upward signal that antenna receives is carried out low noise amplification, filtering and frequency-conversion processing;
Up mould/number conversion module: be connected with the first up radio-frequency module, the up analog signal conversion that the first up radio-frequency module is exported is a digital uplink signal;
Uplink demodulation decoder module: be connected between up mould/number conversion module and the uplink service memory cell, the digital uplink signal of up mould/number conversion module output is carried out demodulating and decoding handle and obtain uplink service information, deposit this uplink service information in the uplink service memory cell;
Described uplink relay subframe transmitter unit comprises up code modulation module, up D/A switch module and the second up radio-frequency module:
Up code modulation module: be connected with the uplink service memory cell, therefrom extract uplink service information and it is carried out chnnel coding, the signal behind the coding is modulated to digital uplink signal;
Up D/A switch module: be connected with up code modulation module, the digital uplink signal that up code modulation module is exported is converted to up analog signal;
The second up radio-frequency module: be connected between up D/A switch module and the duplexer, the up analog signal of up D/A switch module output is carried out sending to duplexer after filtering, frequency conversion and power amplification are handled.
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| CN200510102458A CN1929334B (en) | 2005-09-09 | 2005-09-09 | Wireless signal relay processing method and device |
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| CN1929334B true CN1929334B (en) | 2010-05-05 |
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| CN101064555B (en) * | 2006-04-29 | 2012-05-23 | 上海贝尔阿尔卡特股份有限公司 | Frame structure, frame processing method and equipment and system for multi-hop access network |
| CN101777948B (en) * | 2009-01-14 | 2013-01-09 | 华为技术有限公司 | Construction method of frame structure, construction indication method of frame structure and network system |
| CN101790178B (en) * | 2009-01-23 | 2014-09-10 | 中兴通讯股份有限公司 | Method for configuring downlink relay sub-frame |
| CN101841846B (en) * | 2009-03-17 | 2012-12-26 | 电信科学技术研究院 | Uplink data transmitting method, system and device in TDD (Time Division Duplex) mode based on relay |
| CN101998432B (en) * | 2009-08-13 | 2014-01-29 | 电信科学技术研究院 | Method, equipment and system for configuring frame structure of backhaul link |
| JP5393875B2 (en) | 2009-04-24 | 2014-01-22 | チャイナ アカデミー オブ テレコミュニケーションズ テクノロジー | TDD system backhaul link communication method, device and system |
| CN101873630B (en) * | 2009-04-24 | 2013-04-03 | 电信科学技术研究院 | Wireless communication method, system and device thereof |
| CN101877881B (en) * | 2009-04-30 | 2014-04-02 | 电信科学技术研究院 | Wireless communication method, system and device thereof |
| CN101888661B (en) * | 2009-05-11 | 2015-03-11 | 电信科学技术研究院 | Wireless communication method, system and device |
| CN101902820B (en) * | 2009-05-25 | 2013-04-03 | 电信科学技术研究院 | Method and system for transmitting uplink data and device |
| FR2947414A1 (en) * | 2009-06-24 | 2010-12-31 | Thomson Licensing | TRANSMISSION METHODS FOR WIRELESS NETWORK AND CORRESPONDING RECEPTION METHOD. |
| CN102064878B (en) * | 2009-11-13 | 2014-03-19 | 电信科学技术研究院 | Method and device for indicating uplink data transmission |
| CN101882965A (en) * | 2010-06-11 | 2010-11-10 | 北京交通大学 | A kind of anti-interference full-duplex relay communication system and full-duplex relay equipment |
| WO2012000183A1 (en) * | 2010-06-30 | 2012-01-05 | Nokia Corporation | Method and apparatus for coordinated un sub-frame configuration for lte-a relay |
| CN103533663B (en) * | 2013-09-27 | 2017-02-08 | 电信科学技术研究院 | Random access method and equipment thereof |
| CN111464224B (en) * | 2020-02-22 | 2021-05-18 | 华中科技大学 | A relay communication method and system |
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