CN102958173B - The method and apparatus of Resourse Distribute - Google Patents
The method and apparatus of Resourse Distribute Download PDFInfo
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- CN102958173B CN102958173B CN201110249121.6A CN201110249121A CN102958173B CN 102958173 B CN102958173 B CN 102958173B CN 201110249121 A CN201110249121 A CN 201110249121A CN 102958173 B CN102958173 B CN 102958173B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The invention discloses a kind of method and apparatus of Resourse Distribute, relate to communication technical field, can bandwidth resources be made full use of.The scheme that the embodiment of the present invention provides is by detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow, TDD is adopted to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot, and distribute information rationally to terminal transmission.The employing when scheme that the embodiment of the present invention provides is applicable to carrying out Resourse Distribute.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method and apparatus of Resourse Distribute.
Background technology
There are FDD (FrequencyDivisionDuplex, Frequency Division Duplexing (FDD)) and TDD (TimeDivisionDuplex, time division duplex) two kinds of communication patterns in a wireless communication system.
FDD is for needing two independently channels when eat dishes without rice or wine up channel and down channel utilize frequency range to carry out division operation; one of them channel is used for terminal and transmits information to base station; one other channel is used for base station and transmits information to terminal; a protection frequency range is there is, to prevent from producing interference mutually between contiguous transmitter and receiver between two channels.TDD is that eat dishes without rice or wine up channel and down channel uses identical frequency range, time slot is utilized to divide, namely the uplink and downlink communication between base station and terminal uses the different time-gap of same frequency channels, reception and transfer channel is separated with the time, certain time period sends a signal to terminal by base station, and the other time sends a signal to base station by terminal.
But, when adopting prior art employing wireless communication system, because up channel and down channel employ identical bandwidth, the service traffics of down channel are far longer than the service traffics of up channel, cause that the total bandwidth utilance of system is lower and the bandwidth waste of up channel is more.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus of Resourse Distribute, can make full use of bandwidth resources.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A method for Resourse Distribute, comprising:
Detect and determine the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
Adopt TDD to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot;
Send to terminal and distribute information rationally, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot.
An equipment for Resourse Distribute, comprising:
Detecting unit, for detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
Allocation units, for adopting TDD to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot;
Transmitting element, distributes information rationally for sending to terminal, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot.
The method and apparatus of a kind of Resourse Distribute that the embodiment of the present invention provides, by detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow, TDD is adopted to mark off different time slots on the frequency band in the first channel, and give described second channel by the first time slot allocation in described different time slot, then send to terminal and distribute information rationally.Uneven with the service traffics due to down channel and up channel in prior art, up channel and down channel all employ identical bandwidth, cause the total bandwidth utilance of system lower and bandwidth waste that the is channel that service traffics are little is more compares, the scheme that the embodiment of the present invention provides is by carrying out time-slot division by channel little for service traffics, partial time slot is distributed to the channel that service traffics are large, thus can bandwidth resources be made full use of.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The flow chart of the method for a kind of Resourse Distribute that Fig. 1 provides for the embodiment of the present invention 1;
The block diagram of the equipment of a kind of Resourse Distribute that Fig. 2 provides for the embodiment of the present invention 1;
The flow chart of the method for a kind of Resourse Distribute that Fig. 3 provides for the embodiment of the present invention 2;
The schematic diagram of the frequency band division of the FDD communication system that Fig. 4 provides for the embodiment of the present invention 2;
The schematic diagram carrying out TDD distribution on the up channel of FDD that Fig. 5 provides for the embodiment of the present invention 2;
The schematic diagram of the ratio arrangement table of the down channel that Fig. 6 provides for the embodiment of the present invention 2 and up channel;
Fig. 7 for the first channel that the embodiment of the present invention 2 provides be up channel time, carry out the flow chart of the method for data processing between base station and terminal;
Fig. 8 for the first channel that the embodiment of the present invention 2 provides be down channel time, carry out the flow chart of the method for data processing between base station and terminal;
The block diagram of the equipment of a kind of Resourse Distribute that Fig. 9 provides for the embodiment of the present invention 2;
The block diagram of the data transmission unit that Figure 10 provides for the embodiment of the present invention 2;
The block diagram of the data receipt unit that Figure 11 provides for the embodiment of the present invention 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The embodiment of the present invention provides a kind of method of Resourse Distribute, and as shown in Figure 1, the method comprises:
Step 101, detects and determines the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
FDD (FrequencyDivisionDuplex, Frequency Division Duplexing (FDD)), in order to eat dishes without rice or wine, up channel and down channel utilize frequency range to divide, and namely a up channel frequency range sends data by terminal to base station, and a down channel frequency range sends data by base station to terminal.
Step 102, adopts TDD to mark off different time slots on the frequency band in described first channel, and gives described second channel by the first time slot allocation in described different time slot;
TDD (TimeDivisionDuplex, time division multiplexing), for the different time-gap of eat dishes without rice or wine up channel and down channel use similar frequency bands divides, namely a up channel time slot sends data by terminal to base station, and a down channel time slot sends data by base station to terminal.
In this step, can be that all employings TDD of the frequency band in the first channel is carried out time-slot division.
Step 103, sends to terminal and distributes information rationally, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot.
The method of a kind of Resourse Distribute that the embodiment of the present invention provides, by detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow, TDD is adopted to mark off different time slots on the frequency band in the first channel, and give described second channel by the first time slot allocation in described different time slot, then send to terminal and distribute information rationally.With in prior art because up channel and down channel all employ identical bandwidth, the service traffics of down channel and up channel are uneven, cause the total bandwidth utilance of system lower and bandwidth waste that the is channel that service traffics are little is more compares, the scheme that the embodiment of the present invention provides is by carrying out time-slot division by channel little for service traffics, partial time slot is distributed to the channel that service traffics are large, thus can bandwidth resources be made full use of.
The embodiment of the present invention provides a kind of equipment of Resourse Distribute, and this equipment can be base station, and as shown in Figure 2, this equipment comprises: detecting unit 201, allocation units 202, transmitting element 203.
Detecting unit 201, for detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
Allocation units 202, for adopting TDD to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot;
Transmitting element 203, distributes information rationally for sending to terminal, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot.
The equipment of a kind of Resourse Distribute that the embodiment of the present invention provides, detected by detecting unit and determine the first channel that channel flow in the up channel of FDD and down channel is little and the large second channel of channel flow, frequency band in first channel adopts TDD to mark off different time slots by allocation units, and by the first time slot allocation in described different time slot to second channel, transmitting element sends to terminal and distributes information rationally.Uneven with the service traffics due to down channel and up channel in prior art, up channel and down channel all employ identical bandwidth, cause the total bandwidth utilance of system lower and bandwidth waste that the is channel that service traffics are little is more compares, the scheme that the embodiment of the present invention provides is by carrying out time-slot division by channel little for service traffics, partial time slot is distributed to the channel that service traffics are large, thus can bandwidth resources be made full use of.
Embodiment 2
The method of a kind of Resourse Distribute that the embodiment of the present invention provides, as shown in Figure 3, the method comprises:
Step 301, base station is detected and is determined the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
FDD (FrequencyDivisionDuplex, Frequency Division Duplexing (FDD)), in order to eat dishes without rice or wine, up channel and down channel utilize frequency range to divide, and namely a up channel frequency range sends data by terminal to base station, and a down channel frequency range sends data by base station to terminal.As shown in Figure 4, wherein, the frequency band range of up channel is from F0 to F1, and the frequency band range of down channel is from F2 to F3 for the frequency band division of FDD communication system.
It should be noted that, in step 301, the channel flow of the up channel of FDD and the channel flow of down channel are compared, determine wherein channel flow little be the first channel, what channel flow was large is second channel.When the traffic carrying capacity of the large described second channel of channel flow is larger, even if when described second channel also has the ability of bearer service, the scheme that also embodiment of the present invention can be adopted to provide is optimized configuration, can reduce the interference of generation when second channel carries out bearer service like this.
Step 302, the frequency band in described first channel adopts TDD to mark off different time slots by described base station, and gives described second channel by the first time slot allocation in described different time slot;
Particularly, the frequency band of the first little for channel flow channel is carried out TDD division by base station, make the first channel can distribute some time slots for carrying the partial service in second channel, the channel making utilance lower is fully used, and shared the flow of the higher channel of utilance, improve the throughput of utilance higher channel.
TDD (TimeDivisionDuplex, time division multiplexing), for the different time-gap of eat dishes without rice or wine up channel and down channel use similar frequency bands divides, namely a up channel time slot sends data by terminal to base station, and a down channel time slot sends data by base station to terminal.If the first channel is up channel, as shown in Figure 5, the frequency band (frequency band range of F0 to F1) of up channel is carried out TDD distribution portion time slot to down channel, wherein, the frequency band division of up channel goes out descending time slot T1, for down channel, the frequency band (frequency band range of F2 to F3) of down channel does not carry out time-slot division.
Particularly, described different time slot comprises three class time slots: ascending time slot T1, descending time slot T0 and up-downgoing switch time slot, and wherein, ascending time slot T1, for carrying the business on up channel, namely sends sub-frame of uplink from terminal to base station at ascending time slot; The business of descending time slot T0 on bearing downlink channel, namely sends descending sub frame from base station to terminal at descending time slot; Up-downgoing switches the time required when time slot is used for descending sub frame being switched to sub-frame of uplink.It should be noted that, when sub-frame of uplink is switched to descending sub frame, do not need up-downgoing to switch time slot, reason is in tdd mode, and the frequency used when up channel sends data with down channel is identical, uses the different time periods to distinguish.When descending sub frame is switched to sub-frame of uplink, at the end of descending sub frame sends, terminal, also at continuation downlink data receiving, cannot send upstream data at this frequency, so up-downgoing must be had to switch time slot.And due to terminal up channel send data time send signal in advance, when sub-frame of uplink being switched to the moment of descending sub frame, base station can switch immediately, terminal only needs to postpone a period of time, and to carry out receptions data just passable, so now sub-frame of uplink is switched to descending sub frame and does not need up-downgoing switching time slot.
In different time slots, the length of every class time slot can be carried out deliberation by base station and terminal and determined, such as, the length of ascending time slot is 1ms, the length of descending time slot is 1ms, it is 1ms that up-downgoing switches time slot, or the length of ascending time slot is 2ms, the length of descending time slot is 1ms, and it is 0ms that up-downgoing switches time slot.
Step 303, described base station sends to terminal and distributes information rationally, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot;
Base station, after the frequency band of the first channel is to second channel distribution portion time slot, can notify each terminal with the form of broadcast, can adopt the data service of the first channel processing section second channel carrying at the first time slot.
Here, the parameter that the information of distributing rationally described in comprises at least comprises following two parameters:
1. the ratio of sub-frame of uplink and descending sub frame; 2. the first channel is the instruction of up channel or down channel.
As shown in Figure 6, U represents sub-frame of uplink in the configuration of the sub-frame of uplink defined in LTE protocol and the ratio of descending sub frame, and D represents descending sub frame, and S represents special subframe (comprising the subframe at protection interval).As in Fig. 6, table is 7 kinds of configuring conditions, wherein label is the first configuring condition of 0, and the change-over period that descending sub frame is converted to sub-frame of uplink is 5ms, and a radio frames comprises two cycles, 5 subframes are one-period, and in one-period, subframe is converted to D, S, U, U, U; Wherein label is the 4th kind of configuring condition of 3, and the change-over period that descending sub frame is converted to sub-frame of uplink is 10ms, and a radio frames is one-period, and namely 10 subframes are one-period, and in one-period, subframe is converted to D, S, U, U, U, D, D, D, D.
Step 304, described terminal receive described base station send distribute information rationally;
When terminal receive base station send distribute information rationally after, at described first time slot, by described first channel and described second channel, the process of data between base station and terminal, can be carried out.
When described first channel is up channel, at described first time slot, base station can send data by described first channel to described terminal; When described first channel is down channel, base station can receive the data of described terminal transmission by described first channel.In a period of time, the first channel can part-time be up channel, and part-time is down channel; Or in a period of time, the first channel is up channel or the first channel is down channel.
It should be noted that, up channel can adopt down channel bearer service, or down channel can adopt up channel bearer service, because FDD utilizes frequency range to divide, up channel and down channel adopt different frequency bearer services, interval between frequency is wider, does not disturb each other during bearer service.The frequency band of up channel or down channel is carried out TDD division, is that the data transmission unit on base station or terminal or data receipt unit are switched, like this, the switching between up channel and down channel can be realized.
Particularly, as shown in Figure 7, when the first channel is up channel, the method for carrying out data processing between base station and terminal comprises the following steps described by the present embodiment.
It should be noted that, while sending data by the first channel base station to terminal, base station also sends data by second channel to terminal, different from the content that the first channel sends unlike the content sent by second channel, wherein, second channel is identical with the handling process of prior art to the process of terminal transmission data; In like manner, terminal is also received and sends data by second channel while receiving the data sent by the first channel, wherein, receives by the process of second channel transmission data identical with the handling process of prior art; The scheme that the embodiment of the present invention provides, when the first channel is up channel, to send data by the first channel base station to terminal, it is main being described in detail that terminal receives data:
Step 701, when described first channel is up channel, at described first time slot, data to be sent are carried out chnnel coding by base station, obtain the first data after chnnel coding;
It should be noted that, the object of carrying out chnnel coding carries out error correction, and particularly, at the first time slot, data to be sent, through encryption algorithm, obtain the first data comprising redundant correcting code.
Step 702, described base station is modulated the first data after described chnnel coding, obtains the first low pass baseband signal;
First low pass baseband signal is the low pass baseband signal centered by 0 frequency, if the frequency bandwidth of the first data is 20MHz in up channel, then up channel frequency band range is from-10MHz to 10MHz, and center frequency point is 0Hz, like this, radio-frequency (RF) device is facilitated to carry out frequency conversion.
Step 703, described base station is carried out up-conversion to described first low pass baseband signal and is obtained the first radiofrequency signal, and described first radiofrequency signal is sent to described terminal by described first channel;
The center frequency point of the first radiofrequency signal can be 2.6GHz, it should be noted that, the radiofrequency signal distributing to different operators is different, and such as, the center frequency point distributing to the radiofrequency signal of mobile operator is 2.6GHz.Particularly, the baseband signal centered by 0 frequency is moved the radiofrequency signal centered by 2.6GHz frequency by base station.
It should be noted that, step 701 to step 703 for base station sends the flow process of data by the first channel (up channel) to terminal, simultaneously, base station also sends data by second channel (down channel) to terminal, particularly, the data of a descending time slot in base station through chnnel coding, output packet is containing the data of redundant correcting code, the data exported are modulated, obtain the low pass baseband signal centered by 0 frequency, and to low pass upconvert baseband signals, low pass baseband signal is moved the radiofrequency signal centered by 2.5GHz frequency, and launch.
Step 704, described terminal receives described first radiofrequency signal that described base station is sent by described first channel, carries out down-conversion, obtain described first low pass baseband signal to described first radiofrequency signal;
Particularly, the first radiofrequency signal centered by 2.6GHz frequency received is down-converted to the signal centered by 0 frequency by terminal, i.e. the first low pass baseband signal.
Step 705, described terminal carries out demodulation to described first low pass baseband signal, obtains described first data after demodulation;
The first data obtained are the data comprising redundant correcting code.
Step 706, described terminal carries out decoding to described first data after demodulation, obtains the data sent by described first channel.
It should be noted that, the flow process of the data that step 704 is sent by the first channel (up channel) to step 706 for terminal reception, simultaneously, terminal also receives the data sent by second channel (down channel), particularly, in end side, by radio frequency unit, the downlink radio-frequency signal centered by 2.5GHz frequency received is down-converted to low pass baseband signal centered by 0 frequency, demodulation is carried out to baseband signal, obtain the data of downstream packets containing redundant correcting code, decoding is carried out to the data of redundant correcting code, obtains final downlink data.
It should be noted that, owing to giving second channel by the first time slot allocation, now, base station can send data to terminal at the first time slot on the frequency band of F0 and F1 scope, and it is constant on the frequency band of F2 and F3 scope, base station can send data to terminal always, and the data that terminal may be received in the frequency band of F0 and F1 scope, the frequency band of F2 and F3 scope sends, namely now terminal can receive the data sent by first passage and second channel.
Particularly, as shown in Figure 8, when the first channel is down channel, the method for carrying out Digital Signal Processing between base station and terminal comprises the following steps described by the present embodiment.
It should be noted that, while sending data by the first channel terminal to base station, terminal also sends data by second channel to base station, wherein, terminal is same as the prior art to the flow process of base station transmission data by second channel, unlike, the content sent by the first channel is different from the content sent by second channel; In like manner, the data that base station is sent by the first channel and second channel receiving terminal, wherein, the flow process being received data by second channel is same as the prior art; The scheme that the embodiment of the present invention provides, when the first channel is down channel, to send data by the first channel terminal to base station, it is main being described in detail that base station receives data:
Step 801, when described first channel is down channel, at described first time slot, data to be sent are carried out chnnel coding by described terminal, obtain the second data after chnnel coding;
It should be noted that, the object of carrying out chnnel coding carries out error correction, particularly, in the first time slot data to be sent through encryption algorithm, obtains the second data comprising redundant correcting code.
Step 802, described terminal is modulated the second data after described chnnel coding, obtains the second low pass baseband signal;
In step 802, terminal is identical with the processing procedure of base station in step 602 to the first data to the processing procedure of the second data.Second low pass baseband signal is the low pass baseband signal centered by 0 frequency.
Step 803, described terminal is carried out up-conversion to described second low pass baseband signal and is obtained the second radiofrequency signal, and described second radiofrequency signal is sent to described base station by described first channel;
Signal centered by 0 frequency is moved the radiofrequency signal centered by 2.6GHz frequency by terminal.
It should be noted that, step 801 to step 803 is send data from terminal to base station with the form of radiofrequency signal by the first channel, simultaneously, also data are sent with the form terminal of radiofrequency signal to base station by second channel, particularly, the data of a up time slot in terminal through chnnel coding, output packet is containing the data of redundant correcting code, then data are modulated, obtain the low pass baseband signal centered by 0 frequency, and to the low pass upconvert baseband signals obtained, signal is moved the radiofrequency signal centered by 2.5GHz frequency, and launches.Here, the radiofrequency signal sent by second channel is different with the radiofrequency signal sent by the first channel, and like this, uplink service flow just can increase by 1 times, improves the utilance of the total bandwidth resource of system.
Step 804, at described first time slot, described base station receives described second radiofrequency signal by described first channel, and described second radiofrequency signal is carried out down-conversion, obtains the second low pass baseband signal;
The first radiofrequency signal centered by 2.6GHz frequency received is down-converted to the signal centered by 0 frequency by base station, i.e. the second low pass baseband signal.
Step 805, demodulation is carried out to described second low pass baseband signal in described base station, obtains the second data after demodulation;
The second data after the demodulation obtained are the data comprising redundant correcting code.
Step 806, decoding is carried out to the second data after described demodulation in described base station, obtains the data that described terminal sends.
It should be noted that, while passing through the first channel received data, base station is also by data that second channel receiving terminal sends, particularly, in base station side, by radio frequency unit, the up radiofrequency signal centered by 2.5GHz frequency received is down-converted to low pass baseband signal centered by 0 frequency, demodulation is carried out to baseband signal, obtain the data of downstream packets containing redundant correcting code, and decoding is carried out to the data of redundant correcting code, obtain final upstream data.
It should be noted that, step 801 is similar to the processing procedure of step 706 to step 701 to the processing procedure of step 806, just step 701 is base station to the executive agent of step 703, step 704 is terminal to the executive agent of step 705, and step 801 to the executive agent of step 803 is terminal, step 804 is base station to the executive agent of step 805.
The method of a kind of Resourse Distribute that the embodiment of the present invention provides, by detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow, TDD is adopted to mark off different time slots on the frequency band in the first channel, and give described second channel by the first time slot allocation in described different time slot, then send to terminal and distribute information rationally.With in prior art because up channel and down channel all employ identical bandwidth, the service traffics of down channel and up channel are uneven, cause the total bandwidth utilance of system lower and bandwidth waste that the is channel that service traffics are little is more compares, the scheme that the embodiment of the present invention provides is by carrying out time-slot division by channel little for service traffics in the channel carrying out Frequency Division Duplexing (FDD), partial time slot is distributed to the channel that service traffics are large, thus bandwidth resources can be made full use of, and interference can be reduced.
The embodiment of the present invention provides a kind of equipment of Resourse Distribute, and this equipment can be base station, and as shown in Figure 9, this equipment comprises: detecting unit 901, allocation units 902, transmitting element 903, data transmission unit 904, data receipt unit 905.
Detecting unit 901, for detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
FDD (FrequencyDivisionDuplex, Frequency Division Duplexing (FDD)), in order to eat dishes without rice or wine, up channel and down channel utilize frequency range to divide, and namely a up channel frequency range sends data by terminal to base station, and a down channel frequency range sends data by base station to terminal.Such as, the frequency band range of up channel can be from F0 to F1, and the frequency band range of down channel can be from F2 to F3.
Allocation units 902, for adopting TDD to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot;
Particularly, described different time slot comprises three class time slots: ascending time slot, descending time slot and up-downgoing switch time slot, and wherein, ascending time slot, for carrying the business on up channel, namely sends sub-frame of uplink from terminal to base station at ascending time slot; The business of descending time slot on bearing downlink channel, namely sends descending sub frame from base station to terminal at descending time slot; It is the time required when descending sub frame being switched to sub-frame of uplink that up-downgoing switches time slot.In different time slots, the length of every class time slot can be carried out deliberation by base station and terminal and determined, such as, the length of ascending time slot is 1ms, the length of descending time slot is 1ms, it is 1ms that up-downgoing switches time slot, or the length of ascending time slot is 2ms, the length of descending time slot is 1ms, and it is 0ms that up-downgoing switches time slot.
The frequency band of the first little for channel flow channel is carried out TDD division by base station, make the first channel can distribute some time slots to use to the second channel that channel flow is large, the channel making utilance lower is fully used, and shared the flow of the higher channel of utilance, improve the throughput of utilance higher channel.
TDD (TimeDivisionDuplex, time division multiplexing), for the different time-gap of eat dishes without rice or wine up channel and down channel use similar frequency bands divides, namely a up channel time slot sends data by terminal to base station, and a down channel time slot sends data by base station to terminal.
Transmitting element 903, distributes information rationally for sending to terminal, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot.
After base station distributes information rationally to terminal transmission, at described first time slot, by described first channel and described second channel, between base station and terminal, Digital Signal Processing can be carried out.Here, the parameter that the information of distributing rationally described in comprises at least comprises following two parameters: 1. the ratio of sub-frame of uplink and descending sub frame; 2. the first channel is the instruction of up channel or down channel.
Wherein, when described first channel is up channel, data transmission unit 904, at described first time slot, sends data by described first channel to described terminal;
It should be noted that, while the first time slot sends data by the first channel to terminal, also send data to terminal by second channel, wherein, send data by second channel to terminal identical with the flow process sending data to terminal by second channel in prior art.
When described first channel is down channel, data receipt unit 905, at described first time slot, receives the data of described terminal transmission by described first channel.
It should be noted that, while the data that the first time slot is sent by the first channel receiving terminal, send data by second channel also receiving terminal, wherein, send data by second channel receiving terminal identical with the flow process sending data to terminal by second channel in prior art.
In addition, within a period of time, data transmission unit 904 and data receipt unit 905 can be combined, or within identical a period of time, a usage data transmitting element 904 or only usage data receiving element 905.
Partial time slot, by channel little for service traffics is carried out time-slot division, is distributed to the channel that service traffics are large by the scheme that the embodiment of the present invention provides, thus can make full use of bandwidth resources.
Particularly, at described first time slot, send data by described first channel and described second channel to described terminal, wherein, data are sent to described terminal same as the prior art by second channel, here do not repeat one by one, at described first time slot, send data by described first channel to described terminal, as shown in Figure 10, data transmission unit 904 comprises: coding module 1001, modulation module 1002, radio-frequency module 1003.
When described first channel is up channel, at described first time slot, data to be sent are carried out chnnel coding by coding module 1001, obtain the first data after chnnel coding;
It should be noted that, the object of carrying out chnnel coding carries out error correction, particularly, in the first time slot data to be sent through convolutional encoding algorithm, obtains the first data comprising redundant correcting code;
Modulation module 1002, for modulating the first data after described chnnel coding, obtains the first low pass baseband signal;
First low pass baseband signal is the low pass baseband signal centered by 0 frequency, if the frequency bandwidth of the first data is 20MHz in up channel, then up channel frequency band range is from-10MHz to 10MHz, and center frequency point is 0Hz, like this, radio-frequency (RF) device is facilitated to carry out frequency conversion;
Radio-frequency module 1003, is obtained the first radiofrequency signal for carrying out up-conversion to described first low pass baseband signal, and described first radiofrequency signal is sent to described terminal by described first channel.
The center frequency point of the first radiofrequency signal can be 2.6GHz, and the radiofrequency signal distributing to different operators is different, and such as, the center frequency point distributing to the radiofrequency signal of mobile operator is 2.6GHz.Particularly, the baseband signal centered by 0 frequency is moved the radiofrequency signal centered by 2.6GHz frequency by base station.
Particularly, at described first time slot, receive described terminal by described first channel and send data, as shown in figure 11, data receipt unit 905 comprises: radio-frequency module 1101, demodulation module 1102, decoding module 1103.
Radio-frequency module 1101, for when described first channel is down channel, at described first time slot, receives the second radiofrequency signal by described first channel, and described second radiofrequency signal is carried out down-conversion, obtain the second low pass baseband signal;
Particularly, the second radiofrequency signal centered by 2.6GHz frequency received is down-converted to the signal centered by 0 frequency by base station, i.e. the second low pass baseband signal.
Demodulation module 1102, for carrying out demodulation to described second low pass baseband signal, obtains the second data after demodulation;
The second data after the demodulation obtained are the data comprising redundant correcting code.
Decoding module 1103, for carrying out decoding to the second data after described demodulation, obtains the data that described terminal sends.
The equipment of a kind of Resourse Distribute that the embodiment of the present invention provides, detected by detecting unit and determine the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow, frequency band in first channel adopts TDD to mark off different time slots by allocation units, and by the first time slot allocation in described different time slot to second channel, transmitting element sends to terminal and distributes information rationally.Uneven with the service traffics due to down channel and up channel in prior art, up channel and down channel all employ identical bandwidth, cause the total bandwidth utilance of system lower and bandwidth waste that the is channel that service traffics are little is more compares, the scheme that the embodiment of the present invention provides is by carrying out time-slot division by channel little for service traffics, partial time slot is distributed to the channel that service traffics are large, thus can bandwidth resources be made full use of.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (2)
1. a method for Resourse Distribute, is characterized in that, comprising:
Detect and determine the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
TDD is adopted to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot, also comprise up-downgoing in the described different time-gap that the frequency band in described first channel adopts described TDD to mark off and switch time slot;
Send to terminal and distribute information rationally, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot;
When described first channel is up channel, at described first time slot, send data by described first channel to described terminal,
Described when described first channel is up channel, at described first time slot, send data by described first channel to described terminal and comprise:
When described first channel is up channel, at described first time slot, data to be sent are carried out chnnel coding by base station, obtain the first data after chnnel coding;
Described base station is modulated the first data after described chnnel coding, obtains the first low pass baseband signal;
Described base station is carried out up-conversion to described first low pass baseband signal and is obtained the first radiofrequency signal, and described first radiofrequency signal is sent to described terminal by described first channel; And/or,
When described first channel is down channel, at described first time slot, received the data of described terminal transmission by described first channel,
Described when described first channel is down channel, at described first time slot, the data being received the transmission of described terminal by described first channel are comprised:
When described first channel is down channel, at described first time slot, described base station receives the second radiofrequency signal by described first channel, and described second radiofrequency signal is carried out down-conversion, obtains the second low pass baseband signal;
Demodulation is carried out to described second low pass baseband signal in described base station, obtains the second data after demodulation;
Decoding is carried out to the second data after described demodulation in described base station, obtains the data that described terminal sends.
2. an equipment for Resourse Distribute, is characterized in that, comprising:
Detecting unit, for detecting and determining the first channel that in the up channel of FDD and down channel, channel flow is little and the large second channel of channel flow;
Allocation units, for adopting TDD to mark off different time slots on the frequency band in described first channel, and give described second channel by the first time slot allocation in described different time slot, also comprise up-downgoing in the different time-gap that the frequency band in described first channel adopts described TDD to mark off and switch time slot;
Transmitting element, distributes information rationally for sending to terminal, described in the information of distributing rationally comprise the parameter needed for the partial data business of described second channel being processed at described first time slot;
Data transmission unit, for when described first channel is up channel, at described first time slot, sends data by described first channel to described terminal,
Described data transmission unit comprises:
Coding module, for when described first channel is up channel, at described first time slot, data to be sent carry out chnnel coding, obtain the first data after chnnel coding;
Modulation module, for modulating the first data after described chnnel coding, obtains the first low pass baseband signal;
Radio-frequency module, is obtained the first radiofrequency signal for carrying out up-conversion to described first low pass baseband signal, and described first radiofrequency signal is sent to described terminal by described first channel; And/or,
Data receipt unit, for when described first channel is down channel, at described first time slot, receives the data of described terminal transmission by described first channel,
Described data receipt unit comprises:
Radio-frequency module, for when described first channel is down channel, at described first time slot, receives the second radiofrequency signal by described first channel, and described second radiofrequency signal is carried out down-conversion, obtain the second low pass baseband signal;
Demodulation module, for carrying out demodulation to described second low pass baseband signal, obtains the second data after demodulation;
Decoding module, for carrying out decoding to the second data after described demodulation, obtains the data that described terminal sends.
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| CN201110249121.6A CN102958173B (en) | 2011-08-26 | 2011-08-26 | The method and apparatus of Resourse Distribute |
| PCT/CN2012/080630 WO2013029519A1 (en) | 2011-08-26 | 2012-08-27 | Method and apparatus for resource allocation |
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| CN105009620B (en) * | 2013-11-25 | 2018-12-25 | 华为技术有限公司 | Downlink signal transmission and device |
| CN105323858B (en) * | 2014-07-17 | 2018-09-04 | 普天信息技术有限公司 | Frequency handover method, base station and system in a kind of timesharing long evolving system |
| CN105356980A (en) | 2014-08-20 | 2016-02-24 | 中兴通讯股份有限公司 | Response message sending method and device |
| CN104391812B (en) * | 2014-12-02 | 2018-12-14 | 联想(北京)有限公司 | A kind of communication means and the first electronic equipment |
| WO2016138662A1 (en) * | 2015-03-05 | 2016-09-09 | Qualcomm Incorporated | Control signaling for flexible duplex in wireless communications |
| EP4160974A1 (en) * | 2015-07-06 | 2023-04-05 | Telefonaktiebolaget LM ERICSSON (PUBL) | Resource allocation for data transmission in wireless systems |
| EP3734897B1 (en) | 2017-12-28 | 2023-10-18 | Beijing Xiaomi Mobile Software Co., Ltd. | Data transmission method, base station and terminal |
| CN110806994B (en) * | 2019-09-29 | 2021-09-07 | 华为终端有限公司 | Signal transmission method and device |
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| CN101588201A (en) * | 2008-05-22 | 2009-11-25 | 展讯通信（上海）有限公司 | Frequency division duplex system, device and method |
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