Patent Description:
In the fifth generation (<NUM>) mobile communication technology, user equipment (UE) can support a variety of different numerologies in one carrier. These different numerologies can be multiplexed by frequency division multiplexing (FDM). In a same transmission time interval (TTI), different frequency domain resources can be allocated for data transmissions based on different numerologies. For example, in a long term evolution (LTE) system, the subcarrier bandwidth is <NUM> and the symbol width is <NUM>/<NUM>. A major difference between the <NUM> communication system and <NUM> communication system is that the <NUM> communication system can support data transmissions based on different numerologies, and the <NUM> terminal can also support data transmissions based on different numerologies. For example, the subcarrier bandwidth of the <NUM> communication system can be <NUM>*<NUM>"Hz (n is a non-negative integer).

Data transmissions based on different numerologies can be achieved in different frequency bands, but it will reduce the flexibility of the <NUM> communication system. The maximum flexibility is brought to the <NUM> communication system by multiplexing different numerologies, but when different numerologies are multiplexed, there may be mutual interference between data transmission processes based on different numerologies.

The document <CIT> relates to a wireless communication method including generating a packet including a first preamble and a second preamble, wherein a first symbol and a second symbol of the second preamble are modulated using binary phase shift keying (BPSK); and transmitting the generated packet.

Embodiments of the disclosure provide a method, a terminal device and a network device for transmitting data. It should be noted that embodiments of the invention are those whose scope is within that of the appended claims.

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the drawings referred to in the embodiments of the present disclosure will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained without paying an inventive effort.

The technical solutions in the embodiments of the present disclosure will be described clearly and completely in the following with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are parts, but not all, of the embodiments of the present invention. The scope of the invention is solely limited by the appended claims.

It should be understood that the technical solutions of the embodiments of the present disclosure may be applied to various communication systems, such as the Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, and universal mobile telecommunications system (UMTS) system, and it may be particularly applied to the <NUM> communication system in the future.

A terminal device in the embodiments of the present disclosure may also be referred to as a user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent, or user apparatus. The access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, an on-board device, a wearable device, a terminal device in a future <NUM> network, or a terminal device in a future evolving public land mobile network (PLMN), etc..

A network device in the embodiments of the present disclosure may be a device for communicating with a terminal device, and may be a base transceiver station (BTS) in a GSM system or CDMA system, a NodeB (NB) in a WCDMA system, an evolutional NodeB in an LTE system (eNB or eNodeB), or a wireless controller in a scenario of a cloud radio access network (CRAN), or the network device may be a relay station, an access point, an on-board device, or a wearable device, a network device in a future <NUM> network or a network device in a future evolved public land mobile network (PLMN), etc..

<FIG> is a schematic diagram of an application scenario of the present invention. The communication system in <FIG> may include a network device <NUM> and a terminal device <NUM>. The network device <NUM> is configured to provide communication services for the terminal device <NUM>, and the network device <NUM> is connected to a core network. The terminal device <NUM> accesses the network by searching for a synchronization signal, or broadcast signal, etc. transmitted by the network device <NUM> to communicate with the network. Arrows shown in <FIG> may represent uplink/downlink transmission through cellular links between the terminal device <NUM> and the network device <NUM>. By using different DCI formats to schedule data transmissions based on different numerologies, embodiments of the disclosure can improve the flexibility of control signaling design.

<FIG> shows a schematic diagram of an interaction flow in a method for transmitting data according to an embodiment of the present invention. A network device <NUM> and terminal device <NUM> are shown in <FIG>. As shown in <FIG>, a specific flow for transmitting data includes acts <NUM>-<NUM>.

In <NUM>, the network device <NUM> determines a numerology and a target frequency band for transmitting the data.

Herein, the target frequency band includes a transmission frequency band for transmitting the data and a guard tone, and the terminal device <NUM> does not transmit the data in the guard tone. A high-frequency end and a low-frequency end of the guard tone are respectively adjacent to the transmission frequency bands used for data transmissions based on different numerologies, and the terminal device will not send and receive <NUM> signals in this area.

Specifically, in order to prevent mutual interference between data transmission processes in which different numerologies are used, when signals transmitted based on different numerologies are adjacent in frequency domain, that is, when multiplying is performed in an FDM mode, a guard tone/guard subcarrier may be inserted between two originally adjacent frequency bands, and the terminal device does not transmit data in the guard tone, so that the guard tone can be used to isolate frequency bands used for data transmissions based on different numerologies.

For example, <FIG> shows a schematic diagram of data transmissions based on different numerologies in absence of a guard tone and in presence of a guard tone. Taking <FIG> as an example, when there is no guard tone, mutual interference can easily occur when data is transmitted on adjacent frequency bands by using different numerologies. For example, as shown in <FIG>, when subcarrier spacing used for data transmissions in two adjacent frequency bands is <NUM> and <NUM> respectively, in the process of transmitting data by using the subcarrier spacing respectively in the two adjacent bands, interference occurs when data is transmitted in the two adjacent frequency bands using different subcarrier spacing. However, when there is a guard tone, for example, as shown in <FIG>, the subcarrier spacing used for data transmissions on two different frequency bands is <NUM> and <NUM> respectively. During data transmissions on these two frequency bands using the subcarrier spacing, the two frequency bands occupied by data transmissions by using different numerologies are separated by the guard tone, and no data transmission is performed on the guard tone, so that mutual interference of different subcarrier spacing will not occur. A bandwidth of the guard tone shown in <FIG> is <NUM>.

Therefore, the method described in the embodiment of the present disclosure avoids mutual interference between data transmissions based on different numerologies by setting the guard tone in the transmission resources configured for the terminal device.

Optionally, information of the target frequency band includes a start position and an end position of the target frequency band, a position of the guard tone in the target frequency band, and a bandwidth of the guard tone.

Specifically, when the network device <NUM> configures resources for uplink and downlink transmission for the terminal device <NUM>, configuration information send by the network device needs to include a numerology for transmitting data and information of a target frequency band for transmitting the data. Herein a position of the target frequency band for transmitting the data may be indicated by a start position and an end position of the target frequency band, the target frequency band defined by the start position and the end position includes the guard tone, and the information of the target frequency band also includes a position of the guard tone in the target frequency band.

Optionally, a position of the guard tone in the target frequency band includes a low-frequency end or a high-frequency end of the target frequency band, or includes a low-frequency end and a high-frequency end of the target frequency band.

Specifically, the network device <NUM> may allocate frequency domain resources used for uplink and downlink transmission to the terminal device <NUM> according to following four positional relationships between the guard tone and the target frequency band. That is, the guard tone is located at a low-frequency end of the target frequency band; the guard tone is located at a high-frequency end of the target frequency band; the guard tone is located at both the high-frequency end and the low-frequency end of the target frequency band; or neither end of the target frequency band has a guard tone.

Herein, if a numerology used for data transmission in a transmission frequency band is different from a numerology used for data transmission in a frequency band adjacent to a low-frequency end of the target frequency band, a guard tone may be set at the low-frequency end of the target frequency band. If a numerology used for data transmission in a transmission frequency band is different from a numerology used for data transmission in a frequency band adjacent to a high-frequency end of a target frequency band, a guard tone may be set at a high-frequency end of the target frequency band. If a numerology used for data transmission in the transmission frequency band is different from a numerology used for data transmission in a frequency band adjacent to a low-frequency end of a target frequency band, and a numerology used for data transmission in the transmission frequency band is also different from the numerology used for data transmission in a frequency band adjacent to a high-frequency end of the target frequency band, the guard tone may be set at both the low-frequency end and the high-frequency end of the target frequency band. If a numerology used for data transmission in a transmission frequency band is the same as a numerology used for data transmission in a frequency band adjacent to a low-frequency end of a target frequency band, and a numerology used for data transmission in the transmission frequency band is the same as a numerology used for data transmission in a frequency band adjacent to a high-frequency end of the target frequency band, there may be no guard tone between the two adjacent bands. Therefore, the information of the target frequency band includes the position of the guard tone in the target frequency band, that is, which of the four positional relationships mentioned above is the positional relationship used for the guard tone.

It should be understood that the information of the guard tone further includes a start position and an end position of the target frequency band, as well as a start position and an end position of the guard tone. Herein, the guard tone formed by the start position and the end position of the guard tone may be located at the low-frequency end and/or the high-frequency end of the target frequency band. If the guard tone is located at both the low-frequency end and the high-frequency end of the target frequency band, the information of the target frequency band should include both start and end positions of the part of the guard tone located at the low-frequency end and start and end positions of the part of the guard tone located at the high-frequency end.

Optionally, a bandwidth of the guard tone is an integer multiple of the minimum subcarrier spacing supported by the network device <NUM>.

Specifically, a bandwidth of the guard tone is further included in the information of the target frequency band. Since different numerologies are supported on a same carrier in the <NUM> communication system, bandwidths of guard tones should be able to cover frequency bands used for data transmissions based on different numerologies. Therefore, when the network device <NUM> determines the bandwidth of a guard tone, the minimum carrier spacing supported by the network device <NUM> is used as a unit. As shown in <FIG>, for example, the communication system supports subcarrier spacing of <NUM> and <NUM>. When the network device <NUM> determines the bandwidth of a guard tone, <NUM> is used as a basic unit, that is, the bandwidth of the guard tone should be an integer multiple of <NUM> and less than the bandwidth of the target frequency band. If the guard tone is located at both the low-frequency end and the high-frequency end of the target frequency band, the bandwidth of the part of the guard tone located at the low-frequency end and the bandwidth of the part of the guard tone located at the high-frequency end should be integer multiples of <NUM>.

It should be understood that in the configuration information sent by the network device <NUM> to the terminal device <NUM>, the information of the target frequency band may further include a start position and an end position of the target frequency band, as well as a start position and an end position of the guard tone.

Optionally, the numerology includes subcarrier spacing.

The subcarrier spacing refers to frequency spacing between adjacent subcarriers, such as <NUM> or <NUM>. Parameters in the numerology include, but are not limited to, subcarrier spacing. For example, the numerology included in the configuration information sent by the network device <NUM> to the terminal device <NUM> may further include other parameters, such as a quantity of subcarriers of a specific bandwidth, a quantity of subcarriers in a physical resource block (PRB), a length of an orthogonal frequency division multiplexing (OFDM) symbol, a quantity of points of Fourier transform (such as Fast Fourier Transform (FFT), or inverse Fourier transform, e.g., Inverse Fast Fourier Transform (IFFT)) for generating OFDM signals, a quantity of OFDM symbols in a Transmission Time Interval (TTI), a quantity of TTIs contained in a specific time length, and a length of a signal prefix.

The numerology and target frequency band determined by the network device <NUM> for transmitting data are illustrated by following examples. It is assumed that the network device <NUM> configures transmission resources for transmitting uplink data for the terminal device <NUM> and the terminal device <NUM> respectively. The network device <NUM> configures subcarrier spacing for transmitting uplink data for the terminal device <NUM> to be <NUM> and subcarrier spacing for transmitting uplink data for the terminal device <NUM> to be <NUM>. The network device <NUM> configures start and end positions of the target frequency band for transmitting the uplink data for the terminal device <NUM> to be <NUM> and <NUM> respectively, and the network device <NUM> configures start and end positions of the target frequency band for transmitting the uplink data for the terminal device <NUM> to be <NUM> and <NUM> respectively. Since the subcarrier spacing used by the terminal device <NUM> and the subcarrier spacing used by the terminal device <NUM> are different, and a high-frequency end of a frequency band used by the terminal device <NUM> to transmit its uplink data is adjacent to a low-frequency end of a frequency band used by the terminal device <NUM> to transmit its uplink data, the network device <NUM> may set a guard tone at the high-frequency end of the target frequency band configured for the terminal device <NUM> or at the low-frequency end of the target frequency band configured for the terminal device <NUM>. Assuming that minimum subcarrier spacing supported in the communication system is <NUM>, a bandwidth of the guard tone is an integer multiple of <NUM>. For example, a guard tone configured by the network device <NUM> for the terminal device <NUM> may be located at the high-frequency end of the target frequency band configured for the terminal device <NUM>, and the bandwidth of the guard tone may be, for example, <NUM>, that is, a start position and an end position of the guard tone are <NUM> and <NUM> respectively. For another example, a guard tone configured by the network device <NUM> for the terminal device <NUM> may be located at a low-frequency end of the target frequency band configured for the terminal device <NUM>, and a bandwidth of the guard tone may be <NUM>, that is, a start position and an end position of the guard tone are <NUM> and <NUM> respectively.

It should be understood that the transmission frequency band for transmitting the data in the target frequency band may be continuous or discontinuous. Frequency band resources in the target frequency band that are not used to transmit the data and do not belong to the guard tone, may be used for transmitting other data, or the like. The present disclosure is not limited to this.

In <NUM>, the network device <NUM> sends configuration information to the terminal device <NUM>.

Herein the configuration information includes the numerology and information of the target frequency band.

Specifically, after the network device <NUM> determines the numerology and the target frequency band for transmitting the data, the network device <NUM> sends the configuration information including the numerology and the target frequency band to the terminal device <NUM>, so that the terminal device <NUM> uses the numerology to perform transmission of the data with the network device <NUM> in a frequency band for transmitting the data in the target frequency band according to the configuration information.

In <NUM>, the terminal device <NUM> receives the configuration information sent by the network device <NUM>.

Specifically, the network device <NUM> sends the configuration information to the terminal device <NUM>. After receiving the configuration information sent by the network device <NUM>, the terminal device <NUM> may perform data transmission with the network device <NUM> in a frequency band indicated by the configuration information according to the numerology in the configuration information.

Optionally, the configuration information may further include a filtering mode corresponding to the numerology.

Specifically, if the configuration information further includes a filtering mode corresponding to the numerology, the terminal device <NUM> may filter the received or to-be-transmitted data according to the filtering mode indicated by the configuration information.

In this case, before the network device <NUM> sends the configuration information to the terminal device <NUM>, that is, before executing act <NUM>, the method further includes: the network device <NUM> determines the filtering mode corresponding to the numerology.

Optionally, the filtering mode includes at least one of: a type of a baseband filter (which may simply be referred to as "filter"), parameters of the baseband filter, a filtering waveform adopted, and parameters of the filtering waveform.

<FIG> shows a schematic diagram of an interaction flow in a method for transmitting data according to another embodiment of the present invention. A network device <NUM> and terminal device <NUM> are shown in <FIG>. As shown in <FIG>, a specific flow for transmitting data includes acts <NUM>-<NUM>.

In <NUM>, the network device <NUM> determines a numerology for transmitting data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology.

Specifically, if frequency bands used for data transmissions based on different numerologies are adjacent, in order to prevent interference between different numerologies during frequency division multiplexing, the network device <NUM> may configure the terminal device <NUM> with an appropriate filtering mode corresponding to the numerology, such as a type of a filter and/or waveform, to reduce mutual interference between data transmissions based on different numerologies. The type of the filter and the waveform may be predetermined in the system.

Therefore, by using different filtering modes to process data transmitted based on different numerologies, mutual interference between data transmissions based on different numerologies can be reduced.

Optionally, the filtering mode may include at least one of a type of a baseband filter, parameters of the baseband filter, a filtering waveform adopted, and parameters of the filtering waveform.

Specifically, the network device <NUM> configures the terminal device <NUM> with a numerology and a transmission frequency band for transmitting data, and further configures the terminal device <NUM> with a filtering mode for filtering the data corresponding to the numerology. When data transmitted based on different numerologies are filtered, different filters may be used, or a same filter with different parameters may be used, or different filtering waveforms may be used, or different parameters of the same filtering waveform may be used.

In a <NUM> communication system, data transmitted based on different numerologies may need to be used with different waveforms or filters during baseband processing. For example, common waveforms used with orthogonal frequency division multiplexing (OFDM) signals are windowing OFDM (w-OFDM) and filtered OFDM (f-OFDM). Taking w-OFDM as an example, an OFDM signal, after generated, are multiplied by a window function in the time domain, such as raised-cosine window that is commonly used, w(n) = <NUM>{ <NUM>-cos [<NUM>*pi*n/(N-<NUM>)], where n is a sampling time of time domain, N is a configurable parameter, and the window function listed above can be regarded as a time domain filter and N is a filter parameter.

For example, the network device <NUM> configures the terminal device <NUM> with subcarrier spacing of <NUM>, a filtering waveform of w-OFDM, a transmission frequency band of <NUM>-<NUM> for transmitting uplink data, and the network device <NUM> configures the terminal device <NUM> with subcarrier spacing of <NUM>, a filtering waveform of f-OFDM, and a transmission frequency band of <NUM>-<NUM> for transmitting downlink data. Then, after the terminal device <NUM> receives the configuration information sent by the network device <NUM>, the terminal device <NUM> processes uplink data to be transmitted according to the w-OFDM waveform, and uses the subcarrier spacing of <NUM>, and sends the uplink data to the network device <NUM> on the frequency band <NUM>-<NUM>. After the terminal device <NUM> receives the configuration information sent by the network device <NUM>, the terminal device <NUM> receives the downlink data sent by the network device <NUM> on the frequency band <NUM>-<NUM> according to the subcarrier spacing of <NUM>, and processes the received data according to the f-OFDM waveform.

Optionally, in <NUM>, the network device <NUM> may determine a numerology for transmitting data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology, and the network device <NUM> may further determine a guard tone adjacent to the transmission frequency band. Herein, one end of the guard tone is adjacent to the transmission frequency band, and the terminal device <NUM> is not allowed to transmit data in the guard tone to isolate the transmission frequency band for transmitting the data from the transmission frequency band adjacent to the other end of the guard tone.

The configuration information includes a numerology for transmitting the data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology.

Specifically, after the network device <NUM> determines a numerology for transmitting the data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology, the network device <NUM> sends configuration information including the transmission frequency band for transmitting the data, the numerology, and the filtering mode to the terminal device <NUM>, so that the terminal device <NUM> filters the data by using the filtering mode according to the configuration information, and performs transmission of the data with the network device <NUM> on the transmission frequency band by using the numerology.

Optionally, the configuration information may further include information of a guard tone adjacent to the transmission frequency band. The information of the guard tone may include a positional relationship between the guard tone and the transmission frequency band, as well as a bandwidth of the guard tone. The positional relationship between the guard tone and the transmission frequency band may include that the guard tone is adjacent to the low-frequency end of the transmission frequency band and/or the guard tone is adjacent to the high-frequency end of the transmission frequency band.

Specifically, the network device <NUM> sends configuration information to the terminal device <NUM>. After receiving the configuration information sent by the network device <NUM>, the terminal device <NUM> may filter the data according to the filtering mode and performs transmission of the data with the network device <NUM> on the frequency band indicated by the configuration information according to the numerology in the configuration information.

Optionally, according to the method for transmitting data shown in <FIG> and <FIG>, after act <NUM> or <NUM>, the method may further include acts <NUM> and <NUM>, such as a method for transmitting data according to another embodiment of the present disclosure shown in <FIG>.

In <NUM>, the network device <NUM> sends the data to the terminal device <NUM> according to the configuration information.

Specifically, the network device <NUM> may send the data to the terminal device <NUM> on a frequency band for transmitting the data in the target frequency band according to parameters in the numerology.

In <NUM>, the terminal device <NUM> receives the data transmitted by the network device <NUM> according to the configuration information.

Specifically, the terminal device <NUM> receives the data transmitted by the network device <NUM> on the frequency band for transmitting the data in the target frequency band according to the parameters in the numerology.

If the configuration information further includes a filtering mode corresponding to the numerology, after act <NUM>, the method further includes act <NUM>.

In <NUM>, the terminal device <NUM> processes the received data according to the filtering mode.

Specifically, the terminal device <NUM> filters the received data according to the filtering mode, such as an appropriate type of a baseband filter or a filtering waveform, indicated in the configuration information sent by the network device <NUM>. Optionally, acts <NUM> and <NUM> may be replaced by acts <NUM> and <NUM> respectively, as shown in <FIG> is a schematic diagram of an interaction flow in a method for transmitting data according to another embodiment of the present invention.

In <NUM>, the terminal device <NUM> sends the data to the network device <NUM> according to the configuration information.

Specifically, the terminal device <NUM> may transmit the data to the network device <NUM> on a frequency band for transmitting the data in the target frequency band according to parameters in the numerology.

In <NUM>, the network device <NUM> receives the data sent by the terminal device <NUM> according to the configuration information.

Specifically, the network device <NUM> receives the data transmitted by the terminal device <NUM> on the frequency band for transmitting the data in the target frequency band according to the parameters in the numerology.

If the configuration information further includes a filtering mode corresponding to the numerology, before act <NUM>, the method includes act <NUM>.

In <NUM>, the terminal device <NUM> processes the data according to the filtering mode.

Specifically, the terminal device <NUM> filters the data to be sent according to the filtering mode indicated in the configuration information sent by the network device <NUM>, such as an appropriate type of a baseband filter or a filtering waveform, and sends the processed data to the network device.

It should be understood that the data currently transmitted between the terminal device <NUM> and the network device <NUM> may include uplink data or downlink data. If the transmitted data is downlink data, the network device <NUM> sends the data to the terminal device <NUM>, and the configuration information is configuration information for scheduling the downlink data. After the network device <NUM> sends the downlink data to the terminal device <NUM>, the terminal device <NUM> correctly receives the downlink data sent by the network device <NUM> according to the configuration information, that is, acts <NUM> and <NUM> are performed. If the transmitted data is uplink data, the terminal device <NUM> transmits the data to the network device <NUM>, and the configuration information is configuration information for scheduling the uplink data, the terminal device <NUM> sends the uplink data to the network device <NUM> according to the configuration information, and the network device <NUM> receives the uplink data sent by the terminal device <NUM>, that is, acts <NUM> and <NUM> are performed.

It should be understood that the data transmissions between the network device <NUM> and the terminal device <NUM> in the embodiment of the present disclosure may include transmission of service data or transmission of control signaling, which is not limited herein.

Therefore, the method described in the embodiment of the present disclosure avoids mutual interference between data transmissions based on different numerologies by configuring a guard tone or configuring a filtering mode corresponding to the numerology.

It should be understood that in various embodiments of the present invention, the values of the sequence numbers in the above-mentioned processes do not indicate the order of execution, and the order of execution of various processes should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

The method for transmitting data according to the embodiment of the present disclosure has been described in detail above, and the network device and the terminal device according to the embodiment of the present disclosure will be described below. It should be understood that the network device and the terminal device of embodiments of the present disclosure may perform various methods of the aforementioned embodiment of the present invention, that is, specific working processes of following various devices may refer to the corresponding processes in the aforementioned method embodiment.

<FIG> shows a schematic block diagram of a network device <NUM> according to an embodiment of the present invention. As shown in <FIG>, the network device <NUM> includes a determination module <NUM> and a transmission module <NUM>.

The determination module <NUM> is configured to determine a numerology for transmitting data and determine a target frequency band for transmitting the data, the target frequency band including a transmission frequency band for transmitting the data and a guard tone.

The transmission module <NUM> is configured to send configuration information determined by the determination module <NUM> to a terminal device, the configuration information including the numerology and information of the target frequency band.

The transmission module <NUM> is further configured to receive the data sent by the terminal device or send the data to the terminal device on the transmission frequency band determined by the determination module <NUM> according to the numerology determined by the determination module <NUM>.

Therefore, the network device described in the embodiment of the present disclosure avoids mutual interference between data transmissions based on different numerologies by setting a guard tone in the transmission resources configured for the terminal device.

Optionally, the information of the target frequency band includes a start position and an end position of the target frequency band, a bandwidth of the guard tone, and a position of the guard tone in the target frequency band.

Optionally, the information of the target frequency band includes a start position and an end position of the target frequency band, and a start position and an end position of the guard tone.

Optionally, the position of the guard tone in the target frequency band includes a low-frequency end and/or a high-frequency end of the target frequency band where the guard tone is located.

Optionally, the bandwidth of the guard tone is an integer multiple of minimum subcarrier spacing supported by the network device.

Optionally, the configuration information further includes a filtering mode corresponding to the numerology, and the determination module <NUM> is further configured to determine the filtering mode corresponding to the numerology before the transmission module <NUM> sends the configuration information to the terminal device.

Optionally, the filtering mode includes at least one of: a type of a baseband filter, parameters of the baseband filter, a filtering waveform adopted, and parameters of the filtering waveform.

Optionally, the determination module <NUM> is specifically configured to determine the numerology for transmitting the data from a plurality of predefined numerologies.

It should be noted that in an embodiment of the present invention, the determination module <NUM> may be implemented by a processor and the transmission module <NUM> may be implemented by a transceiver. As shown in <FIG>, the network device <NUM> may include a processor <NUM>, a transceiver <NUM>, and a memory <NUM>. Herein, the transceiver <NUM> may include a receiver <NUM> and a transmitter <NUM>, and the memory <NUM> may be used to store relevant information such as numerologies, guard tones, and filtering modes, and may be further configured to store codes executed by the processor <NUM>, etc. The various components in the network device <NUM> are coupled together by a bus system <NUM>, which includes a power bus, a control bus, a status signal bus, etc., in addition to a data bus.

The processor <NUM> is specifically configured to determine a numerology for transmitting data and determine a target frequency band for transmitting the data, the target frequency band including a transmission frequency band for transmitting the data and a guard tone; the transceiver <NUM> is configured to send configuration information determined by the processor to the terminal device, the configuration information including the numerology and information of the target frequency band; and according to the numerology determined by the processor, receive the data sent by the terminal device or send the data to the terminal device on the transmission frequency band determined by the processor.

Optionally, the configuration information further includes a filtering mode corresponding to the numerology, and the processor <NUM> is further configured to determine the filtering mode corresponding to the numerology before the transceiver <NUM> sends the configuration information to the terminal device.

Optionally, the processor <NUM> is specifically configured to determine the numerology for transmitting the data from a plurality of predefined numerologies.

<FIG> is a schematic diagram of structure of a system chip according to an embodiment of the present invention. A system chip <NUM> in <FIG> includes an input interface <NUM>, an output interface <NUM>, at least one processor <NUM>, and a memory <NUM>. The input interface <NUM>, the output interface <NUM>, the processor <NUM>, and the memory <NUM> are connected through a bus <NUM>. The processor <NUM> is configured to execute codes in the memory <NUM>. When the codes are executed, the processor <NUM> implements the methods executed by the network device <NUM> in <FIG>.

The network device <NUM> shown in <FIG>, the network device <NUM> shown in <FIG>, or the system chip <NUM> shown in <FIG> can implement the various processes implemented by the network device <NUM> in the method embodiments of <FIG> described above. In order to avoid duplication, the details will not be repeated here.

<FIG> shows a schematic block diagram of a terminal device <NUM> according to an embodiment of the present invention. As shown in <FIG>, the terminal device <NUM> includes a transmission module <NUM>. The transmission module <NUM> is configured to receive configuration information sent by a network device, wherein the configuration information includes a numerology and information of a target frequency band for transmitting data, and the target frequency band includes a transmission frequency band for transmitting the data and a guard tone; and according to the numerology, send the data to the network device or receive the data sent by the network device on the transmission frequency band.

Therefore, the terminal device described in the embodiment of the present disclosure avoids mutual interference between data transmissions based on different numerologies through the guard tone set in the transmission resources.

Optionally, information of the target frequency band includes a start position and an end position of the target frequency band, a bandwidth of the guard tone, and a position of the guard tone in the target frequency band.

Information of the target frequency band includes a start position and an end position of the target frequency band, and a start position and an end position of the guard tone.

Optionally, the position of the guard tone in the target frequency band includes a low-frequency end and/or a high-frequency end of the target frequency band where the guard is located.

Optionally, a bandwidth of the guard tone is an integer multiple of minimum subcarrier spacing supported by the network device.

Optionally, the configuration information further includes a filtering mode corresponding to the numerology, and the transmission module <NUM> is specifically configured to process the data according to the filtering mode and send the processed data to the network device on the target frequency band according to the numerology; or, receive the data sent by the network device according to the numerology and process the received data according to the filtering mode.

It should be noted that, in an embodiment of the present invention, the transmission module <NUM> may be implemented by a transceiver. As shown in <FIG>, the terminal device <NUM> may include a processor <NUM>, a transceiver <NUM>, and a memory <NUM>. The transceiver <NUM> may include a receiver <NUM> and a transmitter <NUM>, and the memory <NUM> may be configured to store relevant information, such as, numerologies and filtering modes, and may be further configured to store codes executed by the processor <NUM>. The various components in the terminal device <NUM> are coupled together by a bus system <NUM>, which includes a power bus, a control bus, a status signal bus, etc., in addition to a data bus.

The transceiver <NUM> is configured to receive configuration information sent by a network device, and the configuration information includes a numerology and information of a target frequency band for transmitting data, the target frequency band includes a transmission frequency band for transmitting the data and a guard tone; according to the numerology, send the data to the network device or receive the data sent by the network device on the transmission frequency band.

The information of the target frequency band includes a start position and an end position of the target frequency band, and a start position and an end position of the guard tone.

Optionally, the configuration information further includes a filtering mode corresponding to the numerology, and the transceiver <NUM> is specifically configured to process the data according to the filtering mode and send the processed data to the network device in the target frequency band according to the numerology; or, receive the data sent by the network device according to the numerology and process the received data according to the filtering mode.

<FIG> is a schematic diagram of structure of a system chip according to an embodiment of the present invention. The system chip <NUM> of <FIG> includes an input interface <NUM>, an output interface <NUM>, at least one processor <NUM>, and a memory <NUM>. The input interface <NUM>, the output interface <NUM>, the processor <NUM>, and the memory <NUM> are connected through a bus <NUM>. The processor <NUM> is configured to execute codes in the memory <NUM>. When the codes are executed, the processor <NUM> implements the method performed by the terminal device <NUM> in <FIG>.

The terminal device <NUM> shown in <FIG> or the terminal device <NUM> shown in <FIG> or the system chip <NUM> shown in <FIG> can implement the various processes implemented by the terminal device <NUM> in the method embodiments of <FIG> described above. In order to avoid duplication, the details will not be repeated here.

<FIG> shows a schematic block diagram of a network device <NUM> according to another embodiment of the present invention. As shown in <FIG>, the network device <NUM> includes a determination module <NUM> and a transmission module <NUM>.

The determination module <NUM> is configured to determine a numerology for transmitting data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology.

The transmission module <NUM> is configured to send configuration information including the numerology, the transmission frequency band, and the filtering mode to the terminal device; according to the numerology, receive the data sent by the terminal device or send the data to the terminal device on the transmission frequency band.

It should be noted that in an embodiment of the present invention, the determination module <NUM> may be implemented by a processor and the transmission module <NUM> may be implemented by a transceiver. As shown in <FIG>, the network device <NUM> may include a processor <NUM>, a transceiver <NUM>, and a memory <NUM>. The transceiver <NUM> may include a receiver <NUM> and a transmitter <NUM>, and the memory <NUM> may be configured to store relevant information, such as numerologies, guard tones, and filtering modes, and may be further configured to store codes executed by the processor <NUM>, etc. The various components in the network device <NUM> are coupled together by a bus system <NUM>, which includes a power bus, a control bus, a status signal bus, etc., in addition to a data bus.

The processor <NUM> is specifically configured to determine a numerology for transmitting data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology; the transceiver <NUM> is configured to send configuration information including the numerology, the transmission frequency band, and the filtering mode to the terminal device; according to the numerology, receive the data sent by the terminal device or send the data to the terminal device on the transmission frequency band.

Optionally, the filtering mode includes at least one: a type of a baseband filter, parameters of the baseband filter, a filtering waveform adopted, and parameters of the filtering waveform.

<FIG> is a schematic diagram of structure of a system chip according to an embodiment of the present invention. The system chip <NUM> of <FIG> includes an input interface <NUM>, an output interface <NUM>, at least one processor <NUM>, and a memory <NUM>. The input interface <NUM>, the output interface <NUM>, the processor <NUM>, and the memory <NUM> are connected through a bus <NUM>. The processor <NUM> is configured to execute codes in the memory <NUM>. When the codes are executed, the processor <NUM> implements the method executed by the network device <NUM> in <FIG>.

The network device <NUM> shown in <FIG> or the network device <NUM> shown in <FIG> or the system chip <NUM> shown in <FIG> can implement the various processes implemented by the network device <NUM> in the method embodiments of <FIG> described above. In order to avoid duplication, the details will not be repeated here.

<FIG> shows a schematic block diagram of a terminal device <NUM> according to another embodiment of the present invention. As shown in <FIG>, the terminal device <NUM> includes a transmission module <NUM>.

The transmission module is configured to receive configuration information sent by a network device, and the configuration information includes a numerology for transmitting data, a transmission frequency band for transmitting the data and a filtering mode corresponding to the numerology; process the data according to the filtering mode, and send the processed data to the network device on the target frequency band according to the numerology; or according to the numerology, receive the data sent by the network device, and process the received data according to the filtering mode.

It should be noted that in an embodiment of the present invention, the transmission module <NUM> may be implemented by a transceiver. As shown in <FIG>, a terminal device <NUM> may include a processor <NUM>, a transceiver <NUM>, and a memory <NUM>. The transceiver <NUM> may include a receiver <NUM> and a transmitter <NUM>, and the memory <NUM> may be configured to store information, such as numerologies, and filtering modes, and may be further configured to store codes executed by the processor <NUM>, etc. The various components in the network device <NUM> are coupled together by a bus system <NUM>, which includes a power bus, a control bus, a status signal bus, etc., in addition to a data bus.

The transceiver <NUM> is configured to receive configuration information sent by a network device, the configuration information including a numerology for transmitting data, a transmission frequency band for transmitting the data, and a filtering mode corresponding to the numerology; process the data according to the filtering mode, and send the processed data to the network device in the target frequency band according to the numerology; or, receive the data sent by the network device according to the numerology and process the received data according to the filtering mode.

<FIG> is a schematic diagram of structural of a system chip according to an embodiment of the present invention. A system chip <NUM> of <FIG> includes an input interface <NUM>, an output interface <NUM>, at least one processor <NUM>, and a memory <NUM>. The input interface <NUM>, the output interface <NUM>, the processor <NUM>, and the memory <NUM> are connected through a bus <NUM>. The processor <NUM> is configured to execute codes in the memory <NUM>. When the codes are executed, the processor <NUM> implements the method executed by the terminal device <NUM> in <FIG>.

The terminal device <NUM> shown in <FIG> or the terminal device <NUM> shown in <FIG> or the system chip <NUM> shown in <FIG> can implement the various processes implemented by the terminal device <NUM> in the method embodiments of <FIG> described above, and will not be described here in detail in order to avoid duplication.

It should be understood that the processor in the embodiment of the present disclosure may be an integrated circuit chip with a capability for processing signals. In the implementation process, the acts of the method embodiments described above may be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components, which may implement methods, acts and logic block diagrams disclosed in embodiments of the present invention. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The acts of the method disclosed in connection with the embodiment of the present disclosure can be directly embodied by the execution of the hardware decoding processor or by the combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium commonly used in the art, such as a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, or register. The storage medium is located in the memory, and the processor reads the information in the memory and completes the acts of the above method in combination with its hardware.

It should be understood that the memory in embodiments of the present disclosure may be a transitory memory or non-transitory memory, or may include both transitory and non-transitory memory. The non-transitory memory may be a read-only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. The transitory memory may be a random access memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAMs are available, such as, a static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, for short). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

In addition, the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this document is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, a and/or b may indicate three situations: a alone, a and b, and b alone. In addition, the symbol "/" in this document generally indicates that objects of the former and the latter connected by "/"has an "or" relationship.

It should be understood that in an embodiment of the present invention, "B corresponding to A" means that B is associated with A, and B may be determined according to A. However, it should be further understood that determining B according to A does not mean determining B only according to A, but also according to A and/or other information.

Those of ordinary skill in the art will recognize that the exemplary elements and algorithm acts described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. One skilled in the art may use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

Those skilled in the art can clearly understand that for convenience and conciseness of description, the specific working process of the system, apparatus and unit described above may refer to the corresponding process in the aforementioned method embodiment and will not be described here.

In several embodiments provided by the present invention, it should be understood that the disclosed system, device and method may be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the units is only logical function division, and there may be other division modes in actual implementations, for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. On the other hand, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and it may be in electrical, mechanical or other forms.

The unit described as a separate unit may or may not be physically separated, and the component shown as a unit may or may not be a physical unit, i.e., may be located in one place or may be distributed over multiple network units. Some or all of the elements can be selected according to actual needs to achieve the purpose of this embodiment.

In addition, each functional unit in various embodiments of the present disclosure may be integrated in one processing unit, may be physically present in each unit alone, or may be integrated in one unit with two or more units.

The functions may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on the understanding, the technical solution of the present invention, in essence, or the part contributing to the prior art, or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the acts of the method described in various embodiments of the present invention. The aforementioned storage medium include a U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes.

Claim 1:
A method for transmitting data, comprising:
determining, by a network device, a numerology for transmitting data and determining, by the network device, one target frequency band for transmitting the data (S210), wherein the target frequency band comprises a transmission frequency band for transmitting the data and a guard tone; wherein determining, by the network device, the numerology for transmitting the data comprises: determining, by the network device, the numerology for transmitting the data from a plurality of predefined numerologies;
sending, by the network device, configuration information to a terminal device (S220), wherein the configuration information comprises the numerology and information of the target frequency band; and
receiving, by the network device, the data sent by the terminal device on the transmission frequency band according to the numerology (S422), or sending, by the network device, the data to the terminal device on the transmission frequency band according to the numerology (S411); wherein,
the guard tone is located at both a high-frequency end and a low-frequency end of the target band; wherein the bandwidth of the guard tone is an integer multiple of minimum subcarrier spacing supported by the network device; wherein the information of the target frequency band comprises a start position and an end position of the target frequency band and both start and end position of the part of the guard tone located at the low-frequency end and start and end position of the part of the guard tone located at the high-frequency end.