WO2011143896A1 - 业务数据传输方法、接收机、移动终端、发射机以及基站 - Google Patents
业务数据传输方法、接收机、移动终端、发射机以及基站 Download PDFInfo
- Publication number
- WO2011143896A1 WO2011143896A1 PCT/CN2010/077849 CN2010077849W WO2011143896A1 WO 2011143896 A1 WO2011143896 A1 WO 2011143896A1 CN 2010077849 W CN2010077849 W CN 2010077849W WO 2011143896 A1 WO2011143896 A1 WO 2011143896A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- module
- receiver
- mode
- mobile terminal
- service data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0035—Channel filtering, i.e. selecting a frequency channel within a software radio system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0042—Intra-user or intra-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0096—Indication of changes in allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to the field of communications, and in particular to a service data transmission method, a receiver, a mobile terminal, a transmitter, and a base station.
- OFDM Orthogonal Frequency Division Multiplexing
- OFDMA Orthogonal Frequency Division Multiplexing
- multiple mobile terminals can multiplex spectrum resources at a subdivided subcarrier resource level, for example, a long term evolution system ( The downlink of Long-Term Evolution, LTE) uses such OFDMA technology.
- Figure 1 shows a block diagram of a broadband wireless OFDMA base station transmitter.
- the data of each user is code modulated, and the base station maps the signals in the wideband frequency band through multi-user scheduling.
- the wideband spectrum can form N parallel subcarrier bearer data, for example, N is 2048, and the base station can optimize scheduling of each user on the N subcarriers.
- the general base station obtains the wireless channel from the base station to a certain user (ie, mobile terminal) through the channel quality feedback of the mobile terminal or the reciprocity of the uplink and downlink channels of the Time Division Duplex (TDD).
- TDD Time Division Duplex
- the base station can allocate 4 sub-carriers suitable for user reception (less fading) to the user, so as to achieve the purpose of improving user throughput.
- the base station may allocate consecutive subcarriers to the user, or may assign non-contiguous subcarriers to the user.
- Figure 2 shows an example of subcarrier allocation within a frequency band.
- a part of the frequency domain subcarriers are used as a reference training signal, the transmission is to determine the known signal, and the other part of the frequency domain subcarrier is used to carry the service data to be transmitted.
- the reference signal subcarriers can help the receiver perform channel estimation, thereby completing the phase demodulation of the data.
- some subcarriers carry related control channel information, and the base station uses the relevant control channel to notify the user of the scheduling information and the parameters of each service channel (such as the coding rate, modulation mode, etc.).
- there are some common control channels such as synchronization signals, broadcast channels, etc.
- a certain number of frequency domain subcarrier resources are also occupied, and the non-overlapping mappings with the subcarriers of other channels are in the system frequency band.
- the Inverse Fast Fourier Transform IFFT
- IFFT Inverse Fast Fourier Transform
- each mobile terminal receives a downlink signal, and a block diagram of a receiver of the mobile terminal is shown in FIG.
- the air interface signal is RF-transformed to the baseband by the RF module and is converted into a baseband signal by the analog-to-digital conversion module ADC.
- the cyclic prefix is removed in the time domain, and then the Fourier FFT transform is performed on the time domain OFDM symbol to obtain the data in the frequency domain.
- each mobile terminal takes out its own subcarrier and associated reference subcarrier signals.
- the broadband system has a special control channel or control signaling for notifying each user base station of the location of the time-frequency resources allocated to it.
- the signal estimation module estimates the frequency domain subcarrier channel from the base station to the user by using the reference subcarrier signal; the demodulation module performs phase kilodemodulation on the data subcarrier signal according to the channel estimation value, to obtain a corresponding data bit decision value. , sent to the decoding module for decoding, and finally get the data information.
- RF module RF analog-to-digital conversion module ADC, Fourier transform module FFT and other modules all work in high data rate mode, and users will receive with larger power consumption. However, users do not have high-speed data services in many cases.
- a primary object of the present invention is to provide a service data transmission method, a receiver, a mobile terminal, a transmitter, and a base station to solve the above problems.
- a service data transmission method including: receiving, by a receiver of a mobile terminal, a control signal sent by a base station, where the control signal is used to indicate multiple subcarriers allocated for the mobile terminal, and multiple subcarriers are used. to transmit traffic data; determining a plurality of subcarriers and the difference between the highest frequency FREm ⁇ 's most FRE Low frequency exceeds the threshold value THB; if not exceeded, the receiver receives traffic data preclude a narrowband mode, otherwise preclude the use of wideband The mode receives business data.
- a receiver which is provided on a mobile terminal, and includes: a radio frequency module and a receiver control module, where the radio frequency module is configured to receive a control signal sent by a base station accessed by the mobile terminal, and Outputting to the receiver control module, and for receiving subsequent service data from the base station, wherein the control signal is used to indicate multiple subcarriers allocated for the mobile terminal, and multiple subcarriers are used for transmitting service data; It is judged whether the difference between the highest frequency FREm ⁇ and the lowest frequency FRE LOW among the plurality of subcarriers exceeds the threshold TH B . If not, the service data is received in the narrowband mode, otherwise, the broadband data is received in the broadband mode.
- a mobile terminal including the above receiver.
- a transmitter including: an encoding module, a debugging module, a mapping and multiplexing module, an inverse Fourier transform module, a digital-to-analog conversion module, a radio frequency module, and a scheduling module, where the scheduling module includes a mode determining sub-module, configured to determine whether a current service of the mobile terminal accessing the base station is a non-high-speed transmission service, and if yes, triggering the configuration sub-module to configure a frequency resource corresponding to the narrowband mode for the mobile terminal; Allocating a plurality of subcarriers for the mobile terminal, generating a control signal indicating the plurality of subcarriers, and controlling the radio frequency module to send a control signal to the mobile terminal, where the multiple subcarriers are used for service data transmission, and the highest frequency of the plurality of subcarriers is FRE Hlgh With the most
- a base station including the above transmitter.
- the base station can configure the user in a low-bandwidth narrowband receiving mode, and the base station allocates a narrowband resource to the user to carry its service data, and notifies the user of the scheduling information by using the information of the specific time-frequency location;
- the machine can adaptively shift the center spectrum and filter out the narrowband signal to achieve narrowband reception, thereby narrowing the signal bandwidth processed by the receiver, lowering the digital sampling rate, reducing the calculation amount of the FFT module and related storage, thereby achieving Reduce the power consumption of mobile terminals.
- FIG. 1 is a block diagram showing a structure of a broadband wireless OFDMA base station transmitter according to the related art
- FIG. 2 is a schematic diagram of a full-band band subcarrier allocation according to the related art
- FIG. 3 is a block diagram showing a structure of a receiver of a mobile terminal according to the related art
- 4 is a structural block diagram of a transmitter according to Embodiment 1 of the present invention
- FIG. 5 is a schematic diagram of spectrum allocation of a narrowband bandwidth according to Embodiment 1 of the present invention
- FIG. 6 is a schematic structural diagram of a receiver according to Embodiment 2 of the present invention
- FIG. 8 is a flowchart of a service data transmission method according to Embodiment 3 of the present invention
- FIG. 9 is a flowchart of receiving service data in a narrowband mode according to Embodiment 3 of the present invention
- FIG. 10 is a schematic diagram of spectrum allocation of a full frequency bandwidth according to Embodiment 4 of the present invention
- FIG. 11 is a timing resource scheduling diagram according to Embodiment 4 of the present invention.
- Embodiment 1 a transmitter is provided. Unlike the prior art, as shown in FIG. 4, the scheduling module of the transmitter includes: a mode determining submodule 400, and a configuration submodule 402.
- the mode determining sub-module 400 is configured to determine whether the current service of the mobile terminal accessing the base station is a non-high-speed transmission service, and if yes, the trigger configuration sub-module 402 configures the frequency resource corresponding to the narrowband mode for the mobile terminal, otherwise, determining The mobile terminal receives the service data by using the broadband mode; the configuration submodule 402 is configured to allocate, by the mobile terminal, multiple subcarriers for service data transmission, generate a control signal indicating multiple subcarriers, and control the radio frequency module to send a control signal to the mobile terminal. , wherein the difference between the highest frequency of the best FREm ⁇ Di FRE Low frequencies of the plurality of sub-carriers does not exceed the threshold value
- the existing base station transmitter can only configure the broadband frequency resource for the mobile terminal, that is, in the entire frequency band, regardless of whether the current mobile terminal is in a high rate service or a low rate service.
- the broadband frequency resource has been allocated to the mobile terminal, so that the RF, ADC, and FFT modules of the existing mobile terminal receiver have to work in a high data rate mode to receive service data with a large power.
- the transmitter provided in this embodiment implements the mode judging function and the frequency domain resource configuration function by setting the two sub-modules.
- the transmitter For the mobile terminal that does not need to transmit the service data at high speed, the transmitter is It allocates narrowband frequency resources, so that the receiver of the mobile terminal can adjust the RF, ADC and FFT modules to low-power receiving service data, reducing power consumption.
- the sub-module 400 is determined by the foregoing mode, and the service type of the mobile terminal currently accessing the base station is determined. If the service type of the mobile terminal requires a very high transmission speed, such as a real-time video service or a high-speed file download service, The mode determining sub-module 400 determines that the mobile terminal needs to receive the service data in the broadband mode and allocate the broadband band resource thereto.
- the mode determining sub-module 400 determines that the mobile terminal uses the narrowband mode.
- the trigger configuration sub-module 402 allocates a narrowband frequency resource to the mobile terminal.
- one frequency resource block (RB) is formed by 12 subcarriers, the frequency allocation is based on the frequency resource block, and the 1200 data subcarriers in the 20 MHz bandwidth are 100 RBs.
- the frequency component allocated by the configuration sub-module 402 is a narrow band including multiple subcarriers, and FIG. 5 shows a
- the narrowband of voice service allocation for a mobile terminal is: RBs with serial numbers 80, 81, and 83 (numbers from 0 to 1, 0, 1, ..., 99 from low frequency to high frequency).
- the radio frequency module transmits the control signal in a wideband mode or a narrowband mode.
- the transmission of the control signal may be selected to be transmitted in the broadband mode or the narrowband mode.
- the transmitter of the base station maps the control signal to any RB in the entire frequency band, if the narrowband is used.
- the transmitter of the base station uses the above-mentioned frequency resource allocation mode, and after scheduling coordination, the control signal is mapped to the designated RB of the frequency band for transmission.
- the control signal is transmitted in the narrowband mode, so that the receiver of the mobile terminal can adjust the modules of RF, ADC and FFT to the low power receiving control signal, so that the mobile terminal is in the low power receiving state for as long as possible, thereby further reducing the The power consumption of the mobile terminal.
- the scheduling module further includes: a sending control submodule 404, configured to control the radio frequency module at J.
- the base station and the mobile terminal may, but are not limited to, negotiate the foregoing mode to determine the time slot, the control signal, and the transmission time slot and the transmission period of the service data, so that the mobile terminal can adjust the receiving mode in time and effectively.
- the ground is in a low power state.
- a base station is further provided, which further includes any one of the foregoing transmitters provided in this embodiment, in addition to the functions of the existing base station, to implement a mode determination function and a frequency domain resource configuration function.
- the above-mentioned base station allocates narrowband frequency resources thereto, so that the mobile terminal can adjust modules such as RF, ADC, and FFT to low-power receiving service data, thereby reducing power consumption.
- a receiver is provided. As shown in FIG.
- the receiver includes: a radio frequency module (RF) 60, a receiver control module 61, where the radio frequency module 60 is configured to receive from a control signal of the base station accessed by the mobile terminal, and output to the receiver control module 61, and for receiving subsequent service data from the base station, wherein the control signal is used to indicate multiple sub-carriers for the service data transmission allocated for the mobile terminal carrier; receiver control module 61, configured to determine the maximum frequency of a plurality of subcarriers FREm ⁇ s and most FRE Low frequency difference exceeds the threshold value THB, if not exceeded, Bian receives traffic data with a narrowband mode, otherwise, ⁇ Receive business data in broadband mode.
- RF radio frequency module
- the receiver of the existing mobile terminal needs to set the operating parameters of the RF, ADC, FFT and other modules according to the system bandwidth of the cell, and works in a high data rate mode. Large power receives business data.
- the receiver provided in this embodiment implements the functions of determining the frequency resource and determining the receiving mode through the receiver control module 61.
- the receiver will receive the service data that does not need to be transmitted at a high speed.
- the mode is set to the narrowband reception mode, so that the receiver of the mobile terminal can adjust the RF, ADC, and FFT modules to low-power receiving service data, reducing power consumption.
- the receiver provided in this embodiment may further include: a low pass filter module (LPF) 62, an analog to digital conversion module (ADC) 63, a Fourier transform module (FFT) 64, and a power consumption.
- the Fourier transform module connection 64 is configured to configure the operating parameters in the narrowband working mode for the radio frequency module 60, the low pass filter module 62, the analog to digital conversion module 63, and the Fourier transform module 64 under the control of the receiver control module 61, respectively.
- the RF module 60, the low pass filter module 62, the analog to digital conversion module 63, and the Fourier transform module 64 can perform low power service data reception and processing after being configured as operating parameters of the narrowband operation mode, and the remaining modules are in the existing receiver.
- the corresponding modules have the same function.
- the low power control module 65 in the receiver to respond to the narrowband receive mode requirements of the receiver control module 61, the narrowband is configured for the radio frequency module 60, the low pass filter module 62, the analog to digital conversion module 63, and the Fourier transform module 64.
- the low-power operating parameters in the mode enable the receiver to adapt to various signal bandwidths. For low-rate services, such as voice services and text browsing, the receiver in the power working state can effectively save the mobile terminal. Battery consumption, extending battery life.
- the following operating parameters are generally configured for the radio frequency module 60, the low pass filter module 62, the analog to digital conversion module 63, and the Fourier transform module 64:
- the receiver control module 61 or the low power control module 65 can be configured to perform the operation in the narrowband mode for the radio frequency module 60, the low pass filter module 62, the analog to digital conversion module 63, and the Fourier transform module 64 in the following manner. Parameters:
- the receiver of the mobile terminal can adjust the RF, ADC, and FFT modules to the low-power receiving service data, thereby implementing the narrow-band mode receiving service data of the low-rate service, and reducing the power consumption of the mobile terminal.
- the radio frequency module 60 can receive the control signal in a wideband mode or a narrowband mode.
- the control signal can also be received in the narrowband mode, that is, the receiver of the mobile terminal passes the previously received control signal.
- the control signal can also be received in the narrowband mode, that is, the receiver of the mobile terminal passes the previously received control signal.
- the base station transmitter the frequency resource allocated for the control signal, mapping the control signal to a certain frequency band of the entire frequency band, and the receiver configuring the radio frequency module 60, the low pass filter module 62, and the analog to digital conversion according to the frequency resource characteristics
- the operating parameters of the module 63 and the Fourier transform module 64 adaptively adjust the power consumption of the receiver to minimize the power consumption of the mobile terminal by minimizing the receiver in a low power consumption state.
- the radio frequency module 60 receives the control signal in the Jo + w*J time slot, and receives the service data in the time slot of Jo + w*J + l to r 0 + ( « + l) * J, where ⁇ .
- n 0
- J 0
- the base station and the mobile terminal may, but are not limited to, negotiate the foregoing mode to determine the time slot, the control signal, and the transmission time slot and the transmission period of the service data, so that the mobile terminal can adjust the receiving mode in time and effectively.
- the ground is in a low power state.
- a mobile terminal is further provided, where the mobile terminal has an existing mobile terminal.
- the receiver of any one of the foregoing provides the frequency resource determining function, the receiving mode selecting function, and the receiver operating parameter configuration function. If the current mobile terminal determines that high-speed transmission of service data is not required, The mobile terminal sets the receiving mode to the narrowband mode and configures the operating parameters of each module in the narrowband mode, so that the mobile terminal can adjust the RF, ADC, and FFT modules to low-power receiving service data, thereby reducing power consumption as much as possible.
- Embodiment 3 In this embodiment, a service data transmission method is provided to implement the functions of the base station transmitter and the mobile terminal receiver in the first embodiment and the second embodiment, and FIG. 8 is a service according to the third embodiment of the present invention.
- the flowchart of the data transmission method includes: Step S802: The receiver of the mobile terminal receives the control signal from the base station, where the control signal is used to indicate a plurality of subcarriers allocated for the service data transmission for the mobile terminal; Step S804; The highest frequency FRE HLGH and the last frequency FREL among the plurality of subcarriers are determined. Whether the difference of W exceeds the threshold value Hs, if yes, step S 806 is performed, otherwise, step S 808 is performed; step S806, the receiver receives the service data in the broadband mode; step S808, the receiver receives the service in the narrowband mode data.
- the existing service data transmission method whether the current service is in a low rate service or a high rate service, the receiver of the mobile terminal needs to set the working parameters of the RF, ADC, FFT and other modules according to the system bandwidth of the cell, and can only work in the In the high data rate mode, the service data is received at a relatively large power.
- the service data transmission method provided by this embodiment determines the frequency resource and the function of determining the receiving mode by the receiver. For the service data that does not need to be transmitted at a high speed, the receiver sets the receiving mode to the narrowband receiving mode. Therefore, the receiver of the mobile terminal can adjust the modules such as RF, ADC, and FFT to the low-power receiving service data, thereby reducing the power consumption of the mobile terminal.
- the receiving, by the receiver, the service data in the narrowband mode includes: Step S902, respectively configuring the working parameters of the radio module, the low-pass filter module, the analog-to-digital conversion module, and the Fourier transform module of the receiver, where The working parameter corresponds to the narrowband mode; in the implementation process, after the receiver determines to receive the service data by using the narrowband receiving mode, the RF module, the low-pass filter module, the analog-to-digital conversion module, and the Fourier transform module are configured in the narrowband mode.
- the low-power operating parameters enable the receiver to adapt to various signal bandwidths. For low-rate services, such as voice services and text browsing, the receiver in the power working state can effectively save the battery consumption of the mobile terminal.
- Step S904 receiving service data by using the configured radio frequency module, the low pass filter module, the analog to digital conversion module, and the Fourier transform module.
- the RF module of the receiver receives the signal, downconverts and performs low-pass filtering through the low-pass filter module, and then passes through the analog-to-digital conversion module and sends it to the Fourier transform module processing module to obtain After the frequency domain data, normal channel estimation based on time-frequency domain interpolation filtering is performed, and then demodulated and decoded.
- the service data in the narrowband mode is completed.
- the following operating parameters are generally configured for the RF module, the low-pass filter module, the analog-to-digital conversion module, and the Fourier transform module in the broadband mode:
- the receiver can configure the operating parameters in the narrowband mode for the radio frequency module, the low pass filter module, the analog to digital conversion module, and the Fourier transform module 6 by:
- the receiver of the mobile terminal can adjust the RF, ADC, and FFT modules to the low-power receiving service data, thereby implementing the narrow-band mode receiving service data of the low-rate service, and reducing the power consumption of the mobile terminal.
- the receiver can receive the control signal in a wideband mode or a narrowband mode.
- the control signal can also be received in the narrowband mode, that is, the receiver of the mobile terminal passes the previously received control signal.
- the radio frequency module is at J. + w *J time slot receives control signal, at J. + w *J + l to r 0 + ( « + l) *J receive service data in the time slot, where ⁇ .
- n 0, J ⁇ 0.
- the base station and the mobile terminal may, but are not limited to, negotiate the foregoing mode to determine the time slot, the control signal, and the transmission time slot and the transmission period of the service data, so that the mobile terminal can adjust the receiving mode in time and effectively.
- the ground is in a low power state.
- Transform 1200 frequency domain subcarriers with DC as the center in the frequency domain (without DC subcarriers), subcarrier spacing is 15 kHz, and full frequency bandwidth allocation is shown in Figure 10.
- the base station assigns a narrowband frequency i or resource block RB numbers to 80, 81, and 83 for a voice service user (the number ⁇ frequency to the high frequency is 0, 1 , . .. , 99).
- the base station can schedule the user again and send the relevant control channel information.
- the user receives the control channel information in the wideband mode.
- the control module of the receiver is set to the following parameters for RF, LPF, ADC, FFT and other modules:
- the signal passes through the RF, LPF, and ADC samples, and then the frequency domain data is obtained through the FFT module. All the data of the RBs of the original spectrum of 80, 81, and 83 are received and received without any omission. Machine.
- the demapping module correspondingly separates the reference signal for channel estimation and the subcarrier signal carrying data.
- the subsequent channel estimation module performs channel estimation by using a conventional frequency domain time domain interpolation filtering method. In order to improve the performance of channel estimation, it is possible to consider receiving signals of more RB resource blocks adjacent to the useful bandwidth, so that more frequency domains can be utilized. For the reference signal, the bandwidth of the received processed signal can be adjusted by appropriately increasing the r value and setting the M value.
- the processed signal bandwidth can be increased to 1.25MHz, corresponding to 10 RB resource blocks, which can provide more reference signal subcarriers, thereby improving channel estimation accuracy.
- the demodulation module demodulates the data on the data subcarriers and sends them to the decoder for decoding, thus completing the reception of the data in the narrowband.
- the narrowband receiver completes the data reception, but the processing complexity of the pre-processing module is greatly reduced compared to the full-bandwidth receiver, which is only about 1/32 of the full-bandwidth receiver! This will greatly reduce the power consumption of the receiver and extend the working life of the battery of the mobile terminal device.
- the receiver is adaptively controlled.
- the user's service is a narrowband low-speed service
- the base station will let the receiver The quality of the downlink channel is evaluated irregularly or periodically, and at these times, the user receiver can select the full bandwidth reception mode.
- the base station can configure the user in a low-bandwidth narrowband receiving mode, and the base station allocates a narrowband resource to the user to carry its service data, and notifies the user of the scheduling by using the information of the specific time-frequency location.
- the receiver of the mobile terminal can adaptively shift the center spectrum and filter out the narrowband signal to achieve narrowband reception, thereby narrowing the signal bandwidth processed by the receiver, reducing the digital sample rate, calculating the FFT module and correlating The storage is reduced, thereby achieving the effect of the power consumption of the mobile phone of the mobile phone.
- the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10851653.5A EP2573973B1 (en) | 2010-05-17 | 2010-10-19 | Reception of ofdm data using a narrowband mode and a broadband mode |
| JP2013510478A JP5830528B2 (ja) | 2010-05-17 | 2010-10-19 | サービスデータの伝送方法、受信機、移動端末、送信機及び基地局 |
| US13/259,940 US8923192B2 (en) | 2010-05-17 | 2010-10-19 | Method for service data transmission, a receiver, a mobile terminal, a transmitter and a base station |
| KR1020127010697A KR101561156B1 (ko) | 2010-05-17 | 2010-10-19 | 서비스 데이터 전송 방법, 수신기, 이동단말, 송신기 및 기지국 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010184395.7 | 2010-05-17 | ||
| CN201010184395.7A CN102256339B (zh) | 2010-05-17 | 2010-05-17 | 业务数据传输方法、接收机、移动终端、发射机以及基站 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011143896A1 true WO2011143896A1 (zh) | 2011-11-24 |
Family
ID=44983260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2010/077849 Ceased WO2011143896A1 (zh) | 2010-05-17 | 2010-10-19 | 业务数据传输方法、接收机、移动终端、发射机以及基站 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8923192B2 (zh) |
| EP (1) | EP2573973B1 (zh) |
| JP (1) | JP5830528B2 (zh) |
| KR (1) | KR101561156B1 (zh) |
| CN (1) | CN102256339B (zh) |
| WO (1) | WO2011143896A1 (zh) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695275B (zh) * | 2011-03-25 | 2017-10-31 | 中兴通讯股份有限公司 | 多端口下上行频域资源位置分配信息的表征方法和装置 |
| CN103249049B (zh) * | 2012-02-03 | 2016-01-27 | 电信科学技术研究院 | 一种资源分配的方法和设备 |
| US9622230B2 (en) * | 2012-05-17 | 2017-04-11 | Qualcomm Incorporated | Narrow band partitioning and efficient resource allocation for low cost user equipments |
| GB2508887A (en) | 2012-12-14 | 2014-06-18 | Sony Corp | A cable modem reduces sampling rate when not detecting payload data |
| EP3044870B1 (en) | 2013-09-12 | 2019-05-15 | Vayyar Imaging Ltd. | Apparatus and methods for signal generation, reception, and self-calibration |
| US20160198411A1 (en) * | 2015-01-06 | 2016-07-07 | Marvell World Trade Ltd. | Network-assisted power consumption reduction in a wireless communication terminal |
| CN107645749B (zh) * | 2016-07-21 | 2021-05-18 | 上海诺基亚贝尔股份有限公司 | 数据传输的方法和设备 |
| CN107872415B (zh) * | 2016-09-23 | 2022-07-15 | 中兴通讯股份有限公司 | 一种数据传输方法及装置 |
| US10524266B2 (en) | 2017-10-20 | 2019-12-31 | Google Llc | Switching transmission technologies within a spectrum based on network load |
| US11006413B2 (en) | 2017-12-06 | 2021-05-11 | Google Llc | Narrow-band communication |
| US10608721B2 (en) | 2017-12-14 | 2020-03-31 | Google Llc | Opportunistic beamforming |
| US11246143B2 (en) | 2017-12-15 | 2022-02-08 | Google Llc | Beamforming enhancement via strategic resource utilization |
| WO2019118020A1 (en) | 2017-12-15 | 2019-06-20 | Google Llc | Satellite-based narrow-band communication |
| US10375671B2 (en) | 2017-12-22 | 2019-08-06 | Google Llc | Paging with enhanced beamforming |
| US11251847B2 (en) | 2018-03-28 | 2022-02-15 | Google Llc | User device beamforming |
| GB201810548D0 (en) * | 2018-06-27 | 2018-08-15 | Nordic Semiconductor Asa | OFDM channel estimation |
| GB201810547D0 (en) | 2018-06-27 | 2018-08-15 | Nordic Semiconductor Asa | OFDM channel estimation |
| WO2020055602A1 (en) | 2018-09-10 | 2020-03-19 | Google Llc | Fast beam tracking |
| CN113365329B (zh) | 2018-09-15 | 2023-04-28 | 华为技术有限公司 | 一种通信方法及装置 |
| CN112956244B (zh) * | 2018-10-26 | 2022-10-25 | 华为技术有限公司 | 一种终端的功耗控制方法及相关设备 |
| CN115441986A (zh) * | 2021-06-04 | 2022-12-06 | 华为技术有限公司 | 一种传输信息的方法及其装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060014506A1 (en) * | 2004-07-19 | 2006-01-19 | Haartsen Jacobus C | Dynamic carrier selection and link adaptation in fading environments |
| CN1926842A (zh) * | 2004-04-28 | 2007-03-07 | 摩托罗拉公司 | 用于在宽带通信系统中发射和接收窄带信号的方法和装置 |
| US20080247480A1 (en) * | 2007-04-06 | 2008-10-09 | Dumitru Mihai Ionescu | Methods and systems for detecting a narrow-band interferer |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4360795A (en) * | 1980-10-03 | 1982-11-23 | Honeywell, Inc. | Detection means |
| JP4095665B2 (ja) * | 2002-12-27 | 2008-06-04 | ソフトバンクテレコム株式会社 | チャネル割り当て方法 |
| JPWO2006088082A1 (ja) * | 2005-02-18 | 2008-07-03 | 三菱電機株式会社 | マルチバンド無線通信方法および基地局 |
| JP4476324B2 (ja) * | 2005-03-02 | 2010-06-09 | 富士通株式会社 | Ofdm通信システム及びofdm通信方法 |
| JP4602409B2 (ja) * | 2005-09-30 | 2010-12-22 | 三菱電機株式会社 | 無線通信システムおよび無線通信方法 |
| CN101267414B (zh) * | 2007-03-12 | 2011-01-26 | 中国科学院上海微系统与信息技术研究所 | 一种正交频分多址下行通信系统及通信方法 |
| JP5026149B2 (ja) * | 2007-03-23 | 2012-09-12 | 京セラ株式会社 | 無線通信装置および送信制御方法 |
| JP5395368B2 (ja) * | 2008-05-26 | 2014-01-22 | 株式会社メガチップス | Ofdm受信装置 |
| US8665695B2 (en) * | 2008-07-07 | 2014-03-04 | Mediatek Inc. | Methods for transceiving data in multi-band orthogonal frequency division multiple access communications system and communications apparatuses utilizing the same |
| US9143136B2 (en) * | 2011-12-14 | 2015-09-22 | Waveworks, Inc. | Pumped distributed wave oscillator system |
-
2010
- 2010-05-17 CN CN201010184395.7A patent/CN102256339B/zh active Active
- 2010-10-19 WO PCT/CN2010/077849 patent/WO2011143896A1/zh not_active Ceased
- 2010-10-19 US US13/259,940 patent/US8923192B2/en active Active
- 2010-10-19 EP EP10851653.5A patent/EP2573973B1/en active Active
- 2010-10-19 KR KR1020127010697A patent/KR101561156B1/ko active Active
- 2010-10-19 JP JP2013510478A patent/JP5830528B2/ja active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1926842A (zh) * | 2004-04-28 | 2007-03-07 | 摩托罗拉公司 | 用于在宽带通信系统中发射和接收窄带信号的方法和装置 |
| US20060014506A1 (en) * | 2004-07-19 | 2006-01-19 | Haartsen Jacobus C | Dynamic carrier selection and link adaptation in fading environments |
| US20080247480A1 (en) * | 2007-04-06 | 2008-10-09 | Dumitru Mihai Ionescu | Methods and systems for detecting a narrow-band interferer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101561156B1 (ko) | 2015-10-19 |
| JP2013529437A (ja) | 2013-07-18 |
| KR20130079305A (ko) | 2013-07-10 |
| EP2573973A1 (en) | 2013-03-27 |
| CN102256339B (zh) | 2014-03-19 |
| JP5830528B2 (ja) | 2015-12-09 |
| EP2573973B1 (en) | 2018-12-26 |
| US8923192B2 (en) | 2014-12-30 |
| EP2573973A4 (en) | 2017-05-31 |
| US20120236802A1 (en) | 2012-09-20 |
| CN102256339A (zh) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102256339B (zh) | 业务数据传输方法、接收机、移动终端、发射机以及基站 | |
| JP5123368B2 (ja) | Ofdm送信装置 | |
| US10660093B2 (en) | Base station and method for controlling radio resources allocation | |
| CN109997395B (zh) | 用于无线通信系统的参数集确定的方法和系统 | |
| CN107846373B (zh) | 发送或接收物理下行控制信道的方法和设备 | |
| JP5406916B2 (ja) | 装置 | |
| JP2003309533A (ja) | 無線送信装置、無線受信装置及びその方法 | |
| JP2012100316A (ja) | 送信装置 | |
| CN106797529B (zh) | 用于减小带宽的机器型通信(mtc)设备的子带分配技术 | |
| CN110557833B (zh) | 资源配置方法、网络设备和终端 | |
| US20160198472A1 (en) | Transmit End, Receive End, and Method for Coexistence of Single Carrier System and Multicarrier System | |
| CN108989254B (zh) | 无线通信方法和无线通信设备 | |
| KR20070034905A (ko) | 광대역 무선 접속 통신 시스템에서 주파수 자원 운용 장치및 방법 | |
| JP5811475B2 (ja) | 直交周波数分割多重システムにおける離散スペクトルの使用、ならびに離散スペクトルを使用する受信方法および装置 | |
| CN101557284B (zh) | 无线信号收发方法及装置 | |
| CN103634256A (zh) | 基带信号的旁瓣功率抑制、旁瓣功率抑制处理方法及装置 | |
| CN120570013A (zh) | 资源确定方法及装置、终端设备、网络设备 | |
| CN109479310B (zh) | 一种数据传输方法、设备及系统 | |
| HK1235981A1 (zh) | 用於减小带宽的机器型通信(mtc)设备的子带分配技术 | |
| JP2015144439A (ja) | 通信ネットワークおよび通信ネットワークの動作方法 | |
| CN101371476A (zh) | 用于支持可伸缩带宽的方法和系统 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10851653 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2010851653 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2013510478 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20127010697 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13259940 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |