WO2018187947A1

WO2018187947A1 - Data transmission method, network device, and terminal device

Info

Publication number: WO2018187947A1
Application number: PCT/CN2017/080171
Authority: WO
Inventors: 李振宇; 张武荣; 南杨
Original assignee: 华为技术有限公司
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2018-10-18
Also published as: CN110447174B; CN110447174A

Abstract

Embodiments of the present invention provide a data transmission method, a network device, and a terminal device. The method comprises: determining a transmission opportunity, the transmission opportunity comprising a first time unit on a first frequency band; if the transmission opportunity is successfully obtained, transmitting multiple types of downlink signals to multiple terminal devices on the first frequency band within the first time unit; alternatively, if the transmission opportunity is not successfully obtained, transmitting no downlink signal within the first time unit; receiving an uplink signal transmitted by a first terminal device among the multiple terminal devices on a first frequency sub-band within a second time unit next to the first time unit, wherein the first frequency sub-band is determined by the first terminal device in a frequency hopping mode in multiple frequency sub-bands of the first frequency band. By using broadband for downlink and narrowband frequency hopping for uplink, the data transmission method in the embodiments of the present invention can effectively perform communication on the basis of laws and regulations of different countries.

Description

Method for transmitting data, network device and terminal device

Technical field

Embodiments of the present invention relate to the field of communications, and more particularly, to a method of transmitting data, a network device, and a terminal device.

Background technique

According to the latest international spectrum white paper released by the Federal Communications Commission (FCC), unlicensed spectrum resources are larger than licensed spectrum resources. If the unlicensed spectrum can be effectively utilized, the spectrum efficiency of wireless communication will be greatly improved. Currently, the main technology used on unlicensed spectrum is Wireless Fidelity (Wifi) technology, but wifi has drawbacks in terms of mobility, security, Quality of Service (QoS), and simultaneous handling of multi-user scheduling.

The spectrum is the basis of wireless communication. The 2.4GHz spectrum has been favored by many technologies and manufacturers. In order to ensure the fair use of the spectrum, different countries have different legal rules. Wireless devices must be used in different regions and must comply with the spectrum of the corresponding regions. Regulations. In some areas, wireless communication devices are subject to specific regulatory rules when used on unlicensed spectrum.

For example, as shown in Figure 1, the European Telecommunications Standards Institute (ETSI), in the spectrum management regulation ETSI EN 300 328, divides devices using the 2.4 GHz band into Wideband Modulation devices and frequency hopping ( Frequency hopping), and further refined into adaptive devices and non-adaptive devices, different devices have to comply with different rules.

Specifically, the LBT-based adaptive frequency hopping device needs to meet the limitation that the output power is less than 20 dBm and the transmission time is not more than 60 ms; for example, based on the non-adaptive frequency hopping device, the output power needs to be less than 20 dBm, and the medium utilization (Medium) The utilization, MU) rate is not more than 10%, the single transmission time is not more than 5ms, and the cumulative transmission time is not more than 15ms. Among them, MU=(P/100mW)*DC, P is the output power, and DC is the duty ratio. When P=100mW, DC<=10%, MU<=10%; for example, the LBT-based adaptive wideband modulation device needs to satisfy the Power Spectral Density (PSD) of less than 10dBm/MHz and the output power is less than 20dBm. And the channel occupancy time is less than 10ms.

For example, in the US regulations, for a frequency hopping (FHSS) system with a channel number of not less than 15 channels, the transmission power needs to be less than 21 dBm, and for an FHSS system with a channel number of not less than 75, the transmission power can be up to 30 dBm; In a wideband digital modulation system, the PSD is limited to 8dBm/3KHz and the transmit power is not more than 30dBm. In addition, US regulations allow broadband and frequency hopping hybrid modes, that is, a device can contain two modes of operation. When operating in broadband mode, it is required to comply with broadband regulations, that is, PSD is limited to 8dBm/3KHz, and transmission power is not more than 30dBm. While working in frequency hopping mode, the transmission power should be less than 21dBm (the number of channels is not less than 15) or 30dBm (the number of channels is not less than 75).

Therefore, in the field of communications, there is a need for a high speed and reliable communication system that can be widely applied.

Summary of the invention

The embodiment of the invention provides a method for transmitting data, a network device and a terminal device, which can realize high-speed and reliable communication with wide application.

In a first aspect, a method of transmitting data is provided, the method comprising:

Determining a transmission opportunity, the transmission opportunity including a first time unit on the first frequency band;

If the transmission opportunity is successfully obtained, in the first time unit, multiple downlink signals are sent to multiple terminal devices on the first frequency band; or, if the transmission opportunity is obtained, the first In a time unit, on the first frequency band, no downlink signal is sent;

Receiving, in the second time unit adjacent to the first time unit, an uplink signal sent by the first terminal device of the multiple terminal devices, where the first sub-band And determining, by the first terminal device, a plurality of sub-bands of the first frequency band according to a frequency hopping manner.

In the embodiment of the present invention, the broadband transmission is adopted by the downlink, and the data transmission is performed by using the narrowband frequency hopping in the uplink, which not only satisfies the relevant provisions of the spectrum regulations (Europe and the United States). Compared with the technical solution of downlink non-adaptive narrowband frequency hopping, the network equipment has no MU limitation, which increases the downlink transmission opportunity. In addition, non-adaptive narrowband frequency hopping is adopted through the uplink, and there is no PSD limitation, which can effectively improve the uplink coverage capability.

In some possible implementations, if the length of the second time unit is less than or equal to the first threshold; wherein, in the second time unit adjacent to the first time unit, in the first sub Receiving, in the frequency band, an uplink signal sent by the first terminal device of the multiple terminal devices, including:

And receiving, in the second time unit, an uplink signal sent by at least one of the multiple terminal devices by using a time division multiplexing manner, where the at least one terminal device includes the first terminal device.

In some possible implementations, the receiving, by using the time division multiplexing manner, the uplink signal sent by the at least one terminal device of the multiple terminal devices in the second time unit, including:

Receiving, in the at least one second time subunit of the second time unit, an uplink signal sent by the first terminal device, where the at least one second time subunit is discontinuous in time.

More specifically, in some possible implementations, the receiving, by using the time division multiplexing manner, the uplink signal sent by the at least one terminal device of the multiple terminal devices in the second time unit, including:

And receiving, in the plurality of second time subunits of the second time unit, uplink signals sent by the first terminal device and the second terminal device.

In some possible implementations, if the length of the second time unit is greater than a first threshold; wherein, in the second time unit adjacent to the first time unit, on the first sub-band Receiving an uplink signal sent by the first terminal device of the multiple terminal devices, including:

Receiving, in the first sub-band of the second time unit, an uplink signal sent by the first terminal device, where the first group of second time sub-units is Not continuous in time;

Receiving, in the second sub-band of the second time unit, an uplink signal sent by the first terminal device, where the second sub-band is the first The terminal device is determined in a frequency hopping manner in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.

More specifically, in some possible implementations, if the length of the second time unit is greater than a first threshold, wherein the second time unit adjacent to the first time unit is in the first Receiving, in a sub-band, an uplink signal sent by the first terminal device of the multiple terminal devices, including:

Receiving, in the first group of second time subunits of the second time unit, uplink signals sent by the first terminal device and the second terminal device on the first sub-band;

And in the second group of second time subunits of the second time unit, alternately receiving uplink signals sent by the first terminal device and the second terminal device on the second subband; wherein the second sub The frequency band is the first terminal The device and the second terminal device determine, according to a frequency hopping manner, a total length of the first group of second time subunits and the second group of second time subgroups in the plurality of subbands of the first frequency band The total length of the cells is less than or equal to the first threshold.

In some possible implementations, in the first time unit, sending, in the first frequency band, multiple downlink signals to multiple terminal devices, including:

Transmitting, by the one of the plurality of sub-bands, at least one of the plurality of downlink signals to the plurality of terminal devices, where the at least one downlink signal includes a primary synchronization signal PSS, The secondary synchronization signal SSS and the physical layer broadcast channel PBCH.

In the embodiment of the present invention, by synchronizing and broadcasting signals at a fixed frequency, the terminal device is quickly synchronized and the power consumption of the terminal device is reduced.

In some possible implementations, the transmitting, by the one of the multiple sub-bands, the at least one downlink signal of the multiple downlink signals to the multiple terminal devices, including:

Transmitting the PSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the SSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and for transmitting The sub-bands of the PBCH are different from each other.

Transmitting the PSS and the SSS to the plurality of terminal devices in a time division multiplexing manner on one of the plurality of subbands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS and a sub-band for transmitting the PBCH are different.

Transmitting the at least one downlink signal to the plurality of terminal devices on one physical resource block PRB of one of the plurality of sub-bands.

In the embodiment of the present invention, the synchronization signal and the broadcast signal occupy only one PRB, and power boosting can occupy the power in the maximum allowable PSD range within 1 MHz, and can simultaneously support narrowband terminals such as NB-IoT and eMTC terminals.

In some possible implementations, a location of a sub-band for transmitting the at least one downlink signal is located in the middle of the first frequency band.

In some possible implementation manners, the multiple downlink signals include a physical downlink shared channel (PDSCH) and/or a physical downlink control channel (PDCCH), wherein, in the first time unit, on the first frequency band, Sending multiple downlink signals to multiple terminal devices, including:

Transmitting the PDSCH and/or the PDCCH to the multiple terminal devices in a frequency division multiplexing manner on the multiple sub-bands.

Transmitting the at least one downlink signal repeatedly in the first time unit;

Transmitting the PDSCH and/or to the plurality of terminal devices in a sub-band other than the sub-band for transmitting the at least one downlink signal in the first frequency band in the first time unit. Or the PDCCH.

In the embodiment of the present invention, for the European regulations, the coverage time of the system can be improved by the synchronization signal and the broadcast signal occupying the entire downlink time (the first time unit) within one transmission opportunity.

In some possible implementations, if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of subbands, each of the at least one downlink signal is downlink signal The transmit power is energy in a range of one of the plurality of sub-bands.

Transmitting the at least one downlink signal to the plurality of terminal devices in a first first time subunit of the first time unit, a start time of the first time unit and the first The starting time of the first time subunits is the same;

Transmitting the PDSCH and/or to the plurality of terminal devices on the first frequency band in the first time subunit except the first first time subunit in the first time unit. Or the PDCCH.

In the embodiment of the present invention, for the US regulations, the first first time subunit of the first time unit only transmits the synchronization signal and the broadcast signal, thereby improving the power boosting strength, further improving the coverage capability of the system, and the terminal can reuse the PSS/ SSS performs downlink presence detection.

In some possible implementations, if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of subbands, a sum of transmit powers of the at least one downlink signal is Energy in the range of the first frequency band.

In some possible implementation manners, after the determining the sending opportunity, the method further includes:

In the first subframe of two adjacent radio frames, the transmission opportunity is acquired by listening to the LBT first.

In the embodiment of the present invention, by using the LBT+bandwidth transmission mode in the downlink, downlink multi-user multiplexing can be better supported, and the downlink rate and system capacity are improved.

In addition, by using LBT technology, it is possible to coexist with other systems of 2.4 GHz.

In some possible implementations, the determining a transmission opportunity includes:

In the first subframe of the first radio frame, the first opportunity unit of the transmission opportunity is the first radio frame except the first one by listening to the LBT. 9 subframes other than the subframe, the second time unit being a second radio frame adjacent to the first radio frame.

In a second aspect, a method of transmitting data is provided, the method comprising:

Receiving, by the first terminal device, a downlink signal sent by the network device in one of the plurality of sub-bands of the first frequency band in the first time unit;

Determining, by the first terminal device, the first sub-band in the plurality of sub-bands according to a frequency hopping manner;

The first terminal device sends an uplink signal to the network device on the first sub-band in a second time unit adjacent to the first time unit.

In some possible implementations, if the length of the second time unit is less than or equal to a first threshold, wherein the first terminal device is in a second time unit adjacent to the first time unit, Sending an uplink signal to the network device on the first sub-band, including:

The first terminal device sends an uplink signal to the network device in a time division multiplexing manner in the second time unit.

In some possible implementations, the first terminal device sends an uplink signal to the network device by using a time division multiplexing manner in the second time unit, including:

The first terminal device sends an uplink signal to the network device in at least one second time subunit of the second time unit, and the at least one second time subunit is discontinuous in time.

More specifically, in some possible implementations, the first terminal device sends an uplink signal to the network device by using a time division multiplexing manner in the second time unit, including:

The first terminal device sends an uplink signal to the network device alternately with the second terminal device in the multiple second time subunits of the second time unit.

In some possible implementations, if the length of the second time unit is greater than a first threshold, wherein the first terminal device is in a second time unit adjacent to the first time unit, Sending an uplink signal to the network device on the first sub-band, including:

The first terminal device sends an uplink signal to the network device in the first sub-band in the first group of second time sub-units of the second time unit;

Transmitting, in the second sub-band of the second time unit, an uplink signal to the network device, where the second sub-band is in accordance with the first terminal device The manner of frequency hopping is determined in a plurality of sub-bands of the first frequency band.

More specifically, in some possible implementations, if the length of the second time unit is greater than a first threshold; wherein the first terminal device is in a second time unit adjacent to the first time unit Sending an uplink signal to the network device on the first sub-band, including:

The first terminal device sends an uplink signal to the network device on the first sub-band in the first group of second time sub-units of the second time unit;

And in the second group of second time subunits of the second time unit, on the second sub-band, and the second terminal device alternately sends an uplink signal to the network device; wherein the second sub-band is The first terminal device and the second terminal device are determined in a frequency hopping manner, and the total length of the first group of second time subunits and the second group are determined in a plurality of subbands of the first frequency band. The total length of the second time subunit is less than or equal to the first threshold.

In some possible implementation manners, the first terminal device receives, in a first time unit, a downlink signal sent by the network device in one of the multiple sub-bands of the first frequency band, including:

The first terminal device receives at least one of the following signals sent by the network device on one of the plurality of sub-bands:

The primary synchronization signal PSS, the secondary synchronization signal SSS, and the physical layer broadcast channel PBCH.

Receiving, by the first terminal device, the PSS sent by the network device on one of the multiple sub-bands; and/or,

Receiving, by the first terminal device, the SSS sent by the network device on one of the multiple sub-bands; and/or,

Receiving, by the first terminal device, the PBCH sent by the network device on one of the multiple sub-bands, where the sub-band for transmitting the PSS, and the sub-band for transmitting the SSS The frequency bands and the sub-bands used to transmit the PBCH are different from each other.

Receiving, by the first terminal device, the PSS and the SSS sent by the network device on one of the multiple sub-bands; and/or,

Receiving, by the first terminal device, the PBCH sent by the network device, in a sub-band of the multiple sub-bands, where a sub-band for transmitting the PSS and a sub-sent for transmitting the PBCH are received The frequency bands are not the same.

The first terminal device receives a downlink signal sent by the network device on one physical resource block PRB of one of the plurality of sub-bands.

The first terminal device receives the physical downlink shared channel PDSCH and/or the physical downlink control channel PDCCH transmitted by the network device in one of the plurality of sub-bands of the first frequency band in the first time unit.

In some possible implementations, the first terminal device receives the downlink signal sent by the network device in the one of the multiple sub-bands of the first frequency band in the first time unit, including:

Receiving, by the first terminal device, the at least one downlink signal repeatedly sent by the network device in the first time unit;

Receiving, by the network device, the first terminal device, in the first time unit, on a sub-band other than the sub-band for transmitting the at least one downlink signal in the first frequency band The PDSCH and/or the PDCCH.

Receiving, by the first terminal device, the downlink signal that is repeatedly sent by the network device in the first first time subunit of the first time unit, where the first time unit starts and the first time The starting time of the first time subunits is the same;

Receiving, by the first terminal device, the PDSCH and/or the network device sent in a first time subunit other than the first first time subunit in the first time unit PDCCH.

In a third aspect, a network device is provided, where the network device includes:

An obtaining unit, configured to determine a sending opportunity, where the sending opportunity includes a first time unit on the first frequency band;

a transceiver unit, the transceiver unit is configured to:

In a fourth aspect, a network device is provided, where the network device includes:

a processor, configured to determine a transmission opportunity, where the transmission opportunity includes a first time unit on the first frequency band;

a transceiver for:

A fifth aspect provides a terminal device, where the terminal device includes:

The transceiver unit is configured to receive, in the first time unit, a downlink signal sent by the network device in one of the multiple sub-bands of the first frequency band;

a determining unit, configured to determine a first sub-band among the plurality of sub-bands according to a frequency hopping manner;

The transceiver unit is further configured to send an uplink signal to the network device on the first sub-band in a second time unit adjacent to the first time unit.

A sixth aspect provides a terminal device, where the terminal device includes:

a transceiver, configured to receive, in a first time unit, a downlink signal sent by the network device in one of a plurality of sub-bands of the first frequency band;

a determiner, configured to determine a first sub-band among the plurality of sub-bands according to a frequency hopping manner;

The transceiver is further configured to send an uplink signal to the network device on the first sub-band in a second time unit adjacent to the first time unit.

A seventh aspect, a computer readable storage medium storing a program, the program causing a network device to perform the first aspect or any of the possible implementations of the first aspect method.

In an eighth aspect, a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.

DRAWINGS

Figure 1 is a classification structure diagram of equipment according to European regulations.

2 is a diagram showing an example of an application scenario of an embodiment of the present invention.

3 is an illustration of an example of a prior art LBT.

4 is a diagram showing an example of frequency hopping in the prior art.

FIG. 5 is a schematic flowchart of a method of transmitting data according to an embodiment of the present invention.

6 is a schematic diagram of a method of transmitting data based on European regulations, in accordance with an embodiment of the present invention.

7 is another schematic diagram of a method of transmitting data based on European regulations, in accordance with an embodiment of the present invention.

8 is another schematic diagram of a method of transmitting data based on European regulations, in accordance with an embodiment of the present invention.

9 is a schematic diagram of a method of transmitting data based on US regulations, in accordance with an embodiment of the present invention.

10 is another schematic diagram of a method of transmitting data based on US regulations, in accordance with an embodiment of the present invention.

11 is another schematic diagram of a method of transmitting data based on US regulations, in accordance with an embodiment of the present invention.

FIG. 12 is a schematic structural diagram of a time unit according to an embodiment of the present invention.

FIG. 13 is a schematic structural block diagram of a network device according to an embodiment of the present invention.

FIG. 14 is another schematic structural block diagram of a network device according to an embodiment of the present invention.

FIG. 15 is a schematic structural block diagram of a terminal device according to an embodiment of the present invention.

FIG. 16 is another schematic structural block diagram of a terminal device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

2 is a schematic diagram of an application scenario of an embodiment of the present invention. In Figure 2, the terminal device is capable of communicating with the network device. Also, the arrows shown in FIG. 2 may represent uplink/downlink transmissions between the terminal device and the network device.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication PSD-limited communication systems. For example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (Universal Mobile Telecommunication System, UMTS), Enhanced Machine Type Communication (eMTC) communication system, and the like. By way of example and not limitation, in the embodiment of the present invention, only the LTE-based system (the LTE system including the licensed spectrum assisted access, that is, the LAA-LTE system, and the LTE system including the unlicensed spectrum) is taken as an example for description.

It should also be understood that, in the embodiment of the present invention, the network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station in LTE (Evolutional The Node B, the eNB or the eNodeB, or the base station device in the future 5G network, is not specifically limited in the embodiment of the present invention.

It should also be understood that, in the embodiment of the present invention, the terminal device may communicate with one or more core networks through a Radio Access Network (RAN), and the terminal device may be referred to as an access terminal and a user. Device (UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The UE 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), or a wireless communication function. Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and terminal devices in future 5G networks.

eMTC is an important branch of the Internet of Everything technology. Based on the evolution of the LTE protocol, the LTE protocol has been tailored and optimized to better suit the communication between objects and objects and to reduce costs.

Specifically, in the time domain, the structure of the frame of the eMTC is consistent with the structure of the frame of the LTE, that is, the frame length of each radio frame is 10 ms, each radio frame includes 10 subframes, and each subframe includes 2 subframes. The time slot, if it is a regular cyclic prefix (CP), each time slot includes 7 Orthogonal Frequency Division Multiplexing (OFDM) symbols. If it is an extended CP, each time slot contains 6 OFDM symbols. In the frequency domain, eMTC divides LTE broadband into multiple 1.4MHz narrowbands (NBs), which narrowband is used by the network equipment to schedule terminal equipment, each narrowband contains 6 RBs, and each RB occupies 180 kHz bandwidth, including 12 subcarriers with subcarrier spacing of 15 kHz.

It should be noted that the eMTC scheme is originally designed to be applied to the licensed spectrum, and the device transmits according to the time slot. That is to say, the device does not need to perform Listen Before Talk (LBT) and Clear Channel Assessment (CCA) operations before data is sent.

However, in the unlicensed spectrum, LBT technology is a commonly used channel estimation technique in order to reduce interference between transmitters.

Specifically, as shown in FIG. 3, before data transmission, the device first performs a CCA operation to measure the energy condition on the current channel. If the measured energy exceeds the threshold, the channel is considered to be occupied, and data cannot be transmitted at this time; If the measured energy is below the threshold, the channel is considered to be idle and data can be transmitted at this time. In this way, time division multiplexing is used to preempt the channels between devices, thereby avoiding mutual interference caused by simultaneously transmitting data.

Therefore, if the eMTC scheme is directly applied to the 2.4 GHz unlicensed band, interference will be caused to other devices, which further leads to a decline in communication quality.

In addition, even if the interference problem is not considered, the eMTC scheme is directly applied to the 2.4 GHz unlicensed frequency band. According to the 2.4 GHz European regulations, the PSD is not more than 10 dBm/MHz, and the synchronization signal and the broadcast signal in the eMTC scheme cannot satisfy the coverage (MCL) requirement.

The following is an introduction to frequency hopping (FHSS) technology.

Without loss of generality, Europe adopts uplink and downlink time division multiplexing, that is, network equipment and terminal equipment are based on non-adaptive frequency hopping. Among them, non-adaptive frequency hopping has two meanings: frequency hopping, that is, continuously switching frequency points in the frequency band during transmission to improve frequency division gain; non-adaptive, that is, no channel occupancy evaluation such as LBT is performed before device transmission, Send the signal directly.

As shown in FIG. 4, from the beginning, the network device first sends 5 ms downlink data to the terminal device at the f1 frequency point. According to the regulations, the network device will rest for at least 5 ms after being sent for 5 ms, and the network device stops transmitting. Within the time (5ms), the network device receives the uplink data sent by the terminal device. After 5ms, the network device continues to send 5ms downlink data to the terminal device. In this cycle, the network device accumulates 15ms and then jumps to the next frequency point (ie, the figure). In f2), at this time, the network device and the terminal device camp for 30 ms on the f1 channel.

In the embodiment of the present invention, based on the downlink using LBT+bandwidth transmission and the uplink adopting the concept of FHSS+narrowband transmission, an efficient and reliable data transmission method is provided. In addition, for unlicensed 2.4 GHz spectrum, this data transmission method can meet the relevant regulations of spectrum regulations (Europe and the United States).

FIG. 5 is a schematic flowchart of a method 200 for transmitting data according to an embodiment of the present invention.

As shown in FIG. 5, the method 200 includes:

210. Determine a transmission opportunity, where the transmission opportunity includes a first time unit on the first frequency band.

Specifically, the network device determines a transmission opportunity, where the transmission opportunity includes a first time unit on the first frequency band, where the first time unit may be any one of the following: a mini time slot, a mini time slot set, a time slot , time slot set, subframe, subframe set, and radio frame.

For example, the first time unit can be 10 ms, 30 ms, or 60 ms, and the like.

Optionally, the network device obtains the sending opportunity by using the LBT in the first subframe of the two adjacent radio frames.

It should be noted that, in the embodiment of the present invention, when the network device obtains the transmission opportunity through the LBT, it may be performed in the first subframe of the fixed radio frame, or may be performed at a fixed time. Specifically limited.

220. Send a downlink signal on the sending opportunity; or, do not send a downlink signal.

Specifically, if the sending opportunity is successfully obtained, in the first time unit, multiple downlink signals are sent to the multiple terminal devices in the first frequency band; or, if the sending opportunity fails, the first In a time unit, no downlink signal is transmitted on the first frequency band.

More specifically, the network device measures the energy condition on the current channel through the LBT and the CCA, and if the measured energy is lower than the threshold, the channel is considered to be idle, and in the first time unit, in the first frequency band, many The plurality of downlink signals are sent by the at least one terminal device; if the measured energy exceeds the threshold, the channel is considered to be occupied, and the multiple downlink signals are not sent to the multiple or at least one terminal device.

Thereby, the network devices can preempt the channel in a time division multiplexing manner, thereby avoiding mutual interference caused by simultaneously transmitting data.

It should be understood that, in the embodiment of the present invention, when the network device fails to obtain the transmission opportunity, the network device may determine not to send the downlink signal to the terminal device according to the provisions in the protocol, the standard, or the regulation. However, embodiments of the invention are not limited thereto.

It should be noted that, in the embodiment of the present invention, the network device may send downlink signals to multiple terminal devices on one broadband (first frequency band), or may send only one terminal device in one broadband (first frequency band). One or more downstream signals. The embodiment of the invention is not specifically limited. In the embodiment of the present invention, a plurality of terminal devices are taken as an example for description.

For example, when the network device only needs to send a downlink signal to one terminal device, the first frequency band on the first time unit may be used only to send a downlink signal to one terminal device.

In the embodiment of the present invention, since the European regulations are different from the PSD restrictions in the US regulations, the following descriptions are respectively made according to European regulations and US regulations.

In European regulations, the PSD is no more than 10 dBm/MHz, and the synchronization channel and the broadcast channel become design bottlenecks.

As an embodiment, the network device may send at least one downlink signal of the multiple downlink signals to the multiple terminal devices on one of the multiple sub-bands, where the at least one downlink signal may include Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH).

In other words, the first terminal device of the plurality of terminal devices receives at least one of the following signals transmitted by the network device on one of the plurality of sub-bands: a primary synchronization signal (PSS), a secondary synchronization Signal (SSS) and Physical Layer Broadcast Channel (PBCH).

In the embodiment of the present invention, the network device can meet the requirement that the PSD is not greater than 10 dBm/MHz by transmitting at least one downlink signal of the multiple downlink signals to the multiple terminal devices on one sub-band.

Specifically, the network device may send the PSS to the multiple terminal devices on one of the multiple sub-bands; and/or, to one of the multiple sub-bands, to the multiple terminals The device transmits the SSS; and/or transmits the PBCH to the plurality of terminal devices on one of the plurality of sub-bands.

For example, as shown in FIG. 6, the sub-band for transmitting the PSS, the sub-band for transmitting the SSS, and the sub-band for transmitting the PBCH are different from each other. Since important channels such as PSS, the SSS, and the PBCH separately occupy one sub-band as a dedicated channel, the coverage capability of the system can be increased.

In the embodiment of the present invention, in order to support an eMTC terminal device (capable of supporting 1.08 MHz bandwidth) and/or a narrowband terminal device similar to a cellular-based Narrow Band Internet of Things (NB-IoT) (only supports 180 kHz) bandwidth).

Optionally, the network device may send the at least one downlink signal to the multiple terminal devices on a physical resource block (PRB) of one of the plurality of sub-bands. That is, the first terminal device can receive the downlink signal sent by the network device on one of the one of the plurality of sub-bands.

For example, as shown in FIG. 7, the sub-band for transmitting the PSS, the sub-band for transmitting the SSS, and the sub-band for transmitting the PBCH are different from each other. And, the PSS, the SSS, and the PBCH are all sent on one PRB.

In the embodiment of the present invention, in the near coverage condition, in order to improve the spectrum utilization rate.

Optionally, the network device may send the PSS and the SSS to the multiple terminal devices in a time division multiplexing manner on one of the multiple subbands; and/or, in one of the multiple subbands On the sub-band, the PBCH is sent to the plurality of terminal devices.

For example, as shown in FIG. 8, the sub-band for transmitting the PSS and the sub-band for transmitting the SSS are the same sub-band, and are used for transmitting the PSS and the sub-band of the SSS, and for transmitting the PBCH. The sub-bands are not the same.

It should be understood that FIG. 8 is only an exemplary description of the embodiments of the present invention, and the specific protection scope of the embodiments of the present invention is not limited thereto. For example, a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and a sub-band for transmitting the PBCH are the same sub-band.

In the embodiment of the present invention, in order to reduce the complexity of accessing the network device of the terminal device.

Optionally, the location of the sub-band for transmitting the at least one downlink signal may be located in the middle of the first frequency band. Specifically, the sub-band for transmitting the PSS, the sub-band for transmitting the SSS, and the sub-band for transmitting the PBCH occupy an intermediate position of the first frequency band.

For example, as shown in FIG. 6 or FIG. 7, the PSS, the SSS, and the PBCH respectively occupy three sub-bands in the middle of the first frequency band, and the sub-bands occupied by other signals are distributed on both sides of the three sub-bands.

For another example, as shown in FIG. 8 , the PSS, the SSS, and the PBCH respectively occupy two sub-bands in the middle of the first frequency band, and the sub-bands occupied by other signals are distributed on both sides of the two sub-bands.

In the embodiment of the present invention, in order to improve the coverage capability.

Optionally, the network device may repeatedly send the at least one downlink signal to the multiple terminal devices in the first time unit.

In the embodiment of the present invention, the network device may further send a physical downlink shared channel to the multiple terminal devices by using frequency division multiplexing in the multiple time bands in the first time unit (Physical Downlink Shared Channel). , PDSCH) and/or Physical Downlink Control Channel (PDCCH).

Optionally, the network device may repeatedly send the at least one downlink signal to the multiple terminal devices in the first time unit; in the first time unit, in the first frequency band, in addition to sending the foregoing at least The sub-band outside the sub-band of the downlink signal transmits the PDSCH and/or the PDCCH to the plurality of terminal devices.

For example, as shown in FIG. 6 to FIG. 8 , the network device may repeatedly send the PSS, the SSS, and the PBCH to the multiple terminal devices in the first time unit; in the first time unit, in the first time unit The PDSCH and/or the PDCCH are transmitted to the plurality of terminal devices in a sub-band except for a sub-band for transmitting the PSS, the SSS, and the PBCH.

In the embodiment of the present invention, in order to further improve the coverage capability.

Optionally, if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of sub-bands, the transmit power of each downlink signal in the at least one downlink signal is the multiple sub-bands Energy in the range of one sub-band.

For example, if the PSS, the SSS, and the PBCH are sent on one PRB of one of the plurality of sub-bands, the transmit power of the PSS, the SSS, and the PBCH are all one of the plurality of sub-bands. Energy within the range.

In the US regulations, the PSD cannot be greater than 8dBm/3kHz. It is estimated that the power of 10dBm can be filled in the 1.08MHz bandwidth, so there is no PSD limitation.

Optionally, the network device may send the PSS to the multiple terminal devices on one of the multiple sub-bands; and/or, to one of the multiple sub-bands, to the multiple terminals The device transmits the SSS; and/or transmits the PBCH to the plurality of terminal devices on one of the plurality of sub-bands.

For example, as shown in FIG. 9, the sub-band for transmitting the PSS, the sub-band for transmitting the SSS, and the sub-band for transmitting the PBCH are different from each other. Since the important channels such as the PSS, the PSS, and the PBCH separately occupy one sub-band as a dedicated channel, the coverage capability of the system can be increased.

For example, as shown in FIG. 10, the sub-band for transmitting the PSS, the sub-band for transmitting the SSS, and the sub-band for transmitting the PBCH are different from each other. And, the PSS, the SSS, and the PBCH are all sent on one PRB.

For example, as shown in FIG. 11, the sub-band for transmitting the PSS and the sub-band for transmitting the SSS are the same sub-band, and are used for transmitting the PSS and the sub-band of the SSS, and for transmitting the PBCH. The sub-bands are not the same.

It should be understood that FIG. 11 is only an exemplary description of the embodiments of the present invention, and the specific protection scope of the embodiments of the present invention is not limited thereto.

For example, a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and a sub-band for transmitting the PBCH are the same sub-band.

For example, as shown in FIG. 9 or FIG. 10, the PSS, the SSS, and the PBCH respectively occupy three sub-bands in the middle of the first frequency band, and the sub-bands occupied by other signals are distributed on both sides of the three sub-bands.

For another example, as shown in FIG. 11, the PSS, the SSS, and the PBCH respectively occupy two sub-bands in the middle of the first frequency band, and the sub-bands occupied by other signals are distributed on both sides of the two sub-bands.

Optionally, the network device may repeatedly send the at least one downlink signal to the multiple terminal devices in a first first time subunit of the first time unit, where the starting time of the first time unit is The start time of the first first time subunit is the same; the network device may be in the first time subunit except the first first time subunit in the first time unit, on the first frequency band Transmitting the PDSCH and/or the PDCCH to the plurality of terminal devices.

For example, as shown in FIG. 9 to FIG. 11, the network device may send the PSS, the SSS, and the PBCH to the plurality of terminal devices in the first first time subunit of the first time unit; The PDSCH and/or the PDCCH are transmitted to the plurality of terminal devices on the first frequency band in a first time subunit other than the first first time subunit in a time unit.

Optionally, if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of sub-bands, the sum of the transmit powers of the at least one downlink signal may be a range of the first frequency band. The energy inside.

For example, if the PSS, the SSS, and the PBCH are sent on one PRB of one of the plurality of sub-bands, the sum of the transmit powers of the PSS, the SSS, and the PBCH may be within the range of the first frequency band. energy of.

That is, in the embodiment of the present invention, the network device may send the synchronization channel and the broadcast channel to the plurality of terminal devices by using the first first time subunit after the successful LBT, and send the power of all the bandwidths to the On the channel, the power boosting is increased, and the system coverage capability and the access speed of the terminal device are improved. All sub-bands can be used to transmit information such as PDCCH and PDSCH in the remaining time sub-units in the first time unit.

It should be understood that, in FIG. 6 to FIG. 11 in the embodiment of the present invention, the first time unit is equal to 10 ms for exemplary explanation, and in FIG. 9 to FIG. 11 , the first first time unit of the first time unit is used. The unit is equal to 1 ms for exemplary explanation, but the embodiment of the present invention is not limited thereto.

It should also be understood that, in the embodiment of the present invention, the network device sends a downlink signal to multiple terminal devices in a frequency division multiplexing manner on a broadband, and the terminal device receives the downlink signal on a narrowband. The method for data transmission in the embodiment of the present invention can be applied to a terminal device capable of supporting a bandwidth of 1.08 MHz and/or capable of supporting a bandwidth of 180 kHz.

230. Determine a first sub-band in the multiple sub-bands according to a frequency hopping manner.

Specifically, the network device sends a downlink signal to the plurality of terminal devices by using a frequency division multiplexing manner on a broadband, where the first terminal device is in the first time unit, and one of the plurality of sub-bands in the first frequency band After receiving the downlink signal sent by the network device, determining the first sub-frequency in the multiple sub-bands according to the frequency hopping manner a segment; transmitting, in the second time unit adjacent to the first time unit, an uplink signal to the network device on the first sub-band.

It should be understood that the first terminal device determines the first sub-band in the multiple sub-bands according to the method of frequency hopping, which is easily understood by those skilled in the art, and is not described in detail in the embodiments of the present invention.

For example, the first terminal device can determine the first sub-band in the plurality of sub-bands in a controllable manner. More specifically, the first terminal device may determine the first sub-band by a pseudo-random manner.

It should be noted that the first terminal device may determine the first sub-band by using the above-mentioned pseudo-random manner, and may also determine the first sub-band by other means, which is not specifically limited in the embodiment of the present invention.

For example, the method of frequency hopping can also be pre-configured in the first terminal device.

It should also be understood that, in the embodiment of the present invention, data is transmitted through downlink broadband transmission and uplink narrowband frequency hopping transmission, which can avoid the problem of limited downlink transmission when frequency hopping transmission is adopted in both uplink and downlink on the basis of satisfying European regulations. .

240. Send, in the second time unit adjacent to the first time unit, an uplink signal to the network device on the first sub-band.

Specifically, the terminal device sends an uplink signal to the network device in the first sub-band in the second time unit adjacent to the first time unit.

It should be noted that, in the embodiment of the present invention, when receiving the uplink signal, the network device may receive an uplink signal sent by multiple terminal devices on a broadband (first frequency band), or may be in a broadband (first frequency band). Only one or more downlink signals sent by the first terminal device are received. The embodiment of the invention is not specifically limited.

For example, when only the first terminal device needs to send an uplink signal, the network device may receive the uplink signal sent by the first terminal device on the first sub-band.

For another example, when a plurality of terminal devices need to send an uplink signal to the network device, the multiple terminal devices include the first terminal device, and the multiple terminal devices may be in the first sub-band to the network by means of time division multiplexing. The device sends an uplink signal, or the multiple terminal devices send an uplink signal to the network device on the first frequency band by means of frequency division multiplexing.

Optionally, if the length of the second time unit is less than or equal to the first threshold, in the second time unit, receiving, by using a time division multiplexing manner, an uplink signal sent by at least one of the plurality of terminal devices, where At least one terminal device includes the first terminal device.

Optionally, in the at least one second time subunit of the second time unit, receiving an uplink signal sent by the first terminal device, where the at least one second time subunit is discontinuous in time.

For example, in the plurality of second time subunits of the second time unit, the uplink signals sent by the first terminal device and the second terminal device are alternately received.

It should be understood that the first threshold in the embodiment of the present invention may be specified in the protocol, or may be pre-configured. For example, the first threshold is 10ms, 30ms or 60ms, and the like. The embodiment of the invention is not specifically limited.

It should be further understood that, in the embodiment of the present invention, the first terminal device may receive the uplink signal of the multiple terminal devices in a time division multiplexing manner, or may only receive the uplink signal of the first terminal device in the second time unit. The embodiment of the present invention is not specifically limited.

As shown in FIG. 12, in the downlink, in the downlink process, the network device first performs a broadband LBT in the first subframe of a radio frame 0, and preempts a transmission opportunity (MCOT) with a length of 10 ms. If the preemption succeeds. , then A series of detection (CCH) sequences (LBT duration + CCH sequence duration = 1 ms) are transmitted for the remaining time of the first subframe for downlink presence detection, and downlink data is transmitted in the next 9 subframes (9 ms). In the frequency domain, the entire broadband is divided into a plurality of narrow bands (each narrow band occupies 6 PRBs), and each narrow band communicates with the terminal device.

In addition, after the downlink process is a narrowband uplink process, each terminal device occupies one narrowband (6 RBs), and uses the non-adaptive frequency hopping method to send uplink data to the network device. Due to regulatory restrictions, the UE can only send 5ms on a certain channel, and then need to rest for 5ms before transmitting. In order to make full use of the channel resources, another terminal device (UE2) can occupy this channel and communicate with the network device within 5 ms of the rest of one terminal device (UE1). Among them, an uplink time is 10ms.

It should be understood that FIG. 12 is only an example of an embodiment of the present invention, and the scope of protection of the embodiment of the present invention is not limited thereto.

Optionally, the network device may receive, in the first sub-band of the second time unit, an uplink signal sent by the first terminal device, where the first group of second time is sent. The subunits are not continuous in time; in the second group of second time subunits of the second time unit, the uplink signal sent by the first terminal device is received on the second subband; wherein the second sub The frequency band is determined by the first terminal device and the second terminal device in a plurality of sub-bands of the first frequency band according to a frequency hopping manner, and the second group of second time sub-units are discontinuous in time.

Optionally, the total length of the first group of second time subunits and the total length of the second group of second time subunits are both less than or equal to the first threshold.

For example, in the embodiment of the present invention, the length of the first time unit and the length of the second time unit may not be the length of one radio frame, and the length of the first time subunit of the first time unit may not be the length of one subframe. The uplink information may also include uplink information of the UE 3 and the like.

It should be understood that, in the embodiment of the present invention, the second time unit may be used by multiple terminal devices to send an uplink signal to the network device, or may be a terminal device, which is not limited in the embodiment of the present invention.

For example, two terminal devices are taken as an example. If the length of the second time unit is greater than the first threshold, the network device may be in the first group of second time subunits of the second time unit, in the first sub The uplink signal sent by the first terminal device and the second terminal device is alternately received in the frequency band; and the first terminal is alternately received in the second sub-band in the second group second time sub-unit of the second time unit An uplink signal sent by the device and the second terminal device, where the second sub-band is determined by the first terminal device and the second terminal device in a plurality of sub-bands of the first frequency band according to a frequency hopping manner, where the The total length of a set of second time subunits and the total length of the second set of second time subunits are both less than or equal to the first threshold.

For example, when the second time unit is 60 ms and the first threshold is 30 ms, the network device may alternately receive the uplink sent by the first terminal device and the second terminal device in the first sub-band within the first 30 ms. a signal; in the second 30 ms, on the second sub-band, the uplink signals sent by the first terminal device and the second terminal device are alternately received.

The method for transmitting data according to the embodiment of the present invention is described above with reference to the accompanying drawings. The network device and the terminal device according to the embodiment of the present invention are described below with reference to FIGS.

FIG. 13 is a schematic block diagram of a network device 300 according to an embodiment of the present invention.

As shown in FIG. 13, the network device 300 includes:

The obtaining unit 310 is configured to determine a sending opportunity, where the sending opportunity includes a first time unit on the first frequency band;

The transceiver unit 320 is configured to:

If the transmission opportunity is successfully obtained, in the first time unit, on the first frequency band, to multiple terminal devices Transmitting a plurality of downlink signals; or, if the transmission opportunity fails to be acquired, in the first time unit, not transmitting a downlink signal on the first frequency band;

Receiving, in the second time unit adjacent to the first time unit, an uplink signal sent by the first terminal device of the plurality of terminal devices, where the first sub-band is the first The terminal device is determined in a plurality of sub-bands of the first frequency band according to a frequency hopping manner.

Optionally, if the length of the second time unit is less than or equal to the first threshold, where the transceiver unit 320 is specifically configured to:

And receiving, in the second time unit, an uplink signal sent by at least one of the plurality of terminal devices by using a time division multiplexing manner, where the at least one terminal device includes the first terminal device.

Optionally, the transceiver unit 320 is specifically configured to:

Optionally, if the length of the second time unit is greater than the first threshold, where the transceiver unit 320 is specifically configured to:

Receiving, in the first sub-band of the second time unit, an uplink signal sent by the first terminal device, where the first group of second time sub-units are not in time continuous;

Receiving, in the second sub-band of the second time unit, the uplink signal sent by the first terminal device, where the second sub-band is the first terminal device according to the hopping The frequency mode is determined in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.

Receiving, in the first group of second time subunits of the second time unit, uplink signals sent by the first terminal device and the second terminal device on the first sub-band; in the second time unit In the second group of the second time sub-units, the uplink signals sent by the first terminal device and the second terminal device are alternately received on the second sub-band; wherein the second sub-band is the first terminal device and the second Determining, by the frequency hopping, the plurality of sub-bands of the first frequency band, the total length of the first group of second time sub-units and the total length of the second group of second time sub-units are less than or equal to the The first threshold.

Optionally, the transceiver unit 320 is specifically configured to:

Transmitting at least one of the plurality of downlink signals to the plurality of terminal devices on one of the plurality of sub-bands, wherein the at least one downlink signal comprises a primary synchronization signal PSS and a secondary synchronization signal SSS And the physical layer broadcast channel PBCH.

Optionally, the transceiver unit 320 is specifically configured to:

Transmitting the PSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or transmitting the SSS to the plurality of terminal devices on one of the plurality of sub-bands; and Or transmitting, in a sub-band of the plurality of sub-bands, the PBCH to the multiple terminal devices; wherein, a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and a PBCH for transmitting the PBCH The sub-bands are different from each other.

Optionally, the transceiver unit 320 is specifically configured to:

Transmitting the PSS and the SSS to the plurality of terminal devices in a time division multiplexing manner on one of the plurality of subbands; and/or, in one of the plurality of subbands, to the plurality of subbands The terminal device transmits the PBCH; wherein the sub-band for transmitting the PSS and the sub-band for transmitting the PBCH are different.

Optionally, the transceiver unit 320 is specifically configured to:

Transmitting to the plurality of terminal devices on one physical resource block PRB of one of the plurality of sub-bands The at least one downlink signal.

Optionally, a location of the sub-band for transmitting the at least one downlink signal is located in the middle of the first frequency band.

Optionally, the multiple downlink signals include a physical downlink shared channel (PDSCH) and/or a physical downlink control channel (PDCCH), where the transceiver unit 320 is specifically configured to:

And transmitting the PDSCH and/or the PDCCH to the multiple terminal devices in a frequency division multiplexing manner on the multiple sub-bands.

Optionally, the transceiver unit 320 is specifically configured to:

Transmitting, in the first time unit, the at least one downlink signal to the plurality of terminal devices; and in the first time unit, dividing the sub-band for transmitting the at least one downlink signal in the first frequency band The PDSCH and/or the PDCCH are transmitted to the plurality of terminal devices on the other sub-bands.

Optionally, the transceiver unit 320 is specifically configured to:

And transmitting, in the first first time subunit of the first time unit, the at least one downlink signal to the plurality of terminal devices, the start time of the first time unit and the first first time The start time of the unit is the same; in the first time subunit except the first first time subunit in the first time unit, the PDSCH is sent to the multiple terminal devices on the first frequency band. And/or the PDCCH.

Optionally, if the at least one downlink signal is sent on one physical resource block PRB of one of the multiple sub-bands, the sum of the transmit powers of the at least one downlink signal is within the range of the first frequency band. energy of.

Optionally, the obtaining unit 310 is specifically configured to:

In the first subframe of two adjacent radio frames, the transmission opportunity is obtained by listening to the LBT first.

It should be noted that in the embodiment of the present invention, the obtaining unit 310 may be implemented by a processor, and the transceiver unit 320 may be implemented by a transceiver.

As shown in FIG. 14, network device 400 can include a processor 410, a transceiver 420, and a memory 430. The memory 430 can be used to store information, and can also be used to store code, instructions, and the like executed by the processor 410.

By way of example and not limitation, a communication connection is implemented between the processor 410, the transceiver 420, and the memory 430 by way of, for example, a bus or the like.

FIG. 15 is a schematic block diagram of a network device 500 according to an embodiment of the present invention.

As shown in FIG. 15, the network device 500 includes:

The transceiver unit 510 is configured to receive, in a first time unit, a downlink signal sent by the network device in one of the multiple sub-bands of the first frequency band;

The processing unit 520 is configured to determine a first sub-band in the multiple sub-bands according to a frequency hopping manner;

The transceiver unit 510 is further configured to send an uplink signal to the network device on the first sub-band in a second time unit adjacent to the first time unit.

Optionally, if the length of the second time unit is less than or equal to the first threshold, where the transceiver unit 510 is specifically configured to:

In the second time unit, the uplink signal is sent to the network device by means of time division multiplexing.

Optionally, the transceiver unit 510 is specifically configured to:

And in the plurality of second time subunits of the second time unit, and the second terminal device alternately sends the network device Send an upstream signal.

Optionally, if the length of the second time unit is greater than the first threshold, the transceiver unit 510 is specifically configured to:

The first terminal device sends an uplink signal to the network device in the first group of second time subunits of the second time unit, where the first group of second time subunits is in time Not continuous;

Transmitting, in the second sub-band of the second time unit, an uplink signal to the network device, where the second sub-band is a frequency hopping manner of the first terminal device The second set of second time subunits are discontinuous in time determined in the plurality of sub-bands of the first frequency band.

In the first group of second time subunits of the second time unit, on the first sub-band, the second terminal device sends an uplink signal to the network device; in the second group of the second time unit, the second group In the time subunit, on the second sub-band, the second terminal device alternately sends an uplink signal to the network device, where the second sub-band is the first terminal device and the second terminal device according to the frequency hopping manner. The total length of the first set of second time subunits and the total length of the second set of second time subunits are both less than or equal to the first threshold determined in the plurality of subbands of the first frequency band.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving at least one of the following signals transmitted by the network device on one of the plurality of sub-bands: a primary synchronization signal PSS, a secondary synchronization signal SSS, and a physical layer broadcast channel PBCH.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, in one of the plurality of sub-bands, the PSS sent by the network device; and/or receiving the SSS sent by the network device in one of the plurality of sub-bands; and/or, Receiving, in one of the plurality of sub-bands, the PBCH sent by the network device, where a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and a sub-band for transmitting the PBCH are mutually Not the same.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, in one of the plurality of sub-bands, the PSS and the SSS sent by the network device; and/or receiving the PBCH sent by the network device in one of the multiple sub-bands; The sub-band used to transmit the PSS and the sub-band used to transmit the PBCH are different.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, on a physical resource block PRB of one of the plurality of sub-bands, a downlink signal sent by the network device.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, in a first time unit, a physical downlink shared channel (PDSCH) and/or a physical downlink control channel (PDCCH) transmitted by the network device, in one of the plurality of sub-bands of the first frequency band.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, in the first time unit, the at least one downlink signal repeatedly sent by the network device; in the first time unit, in the first frequency band, except for a sub-band for transmitting the at least one downlink signal Receiving the PDSCH and/or the PDCCH sent by the network device on the outer sub-band.

Optionally, the transceiver unit 510 is specifically configured to:

Receiving, in the first first time subunit of the first time unit, a downlink signal repeatedly sent by the network device, a start time of the first time unit, and a start time of the first first time subunit The same; receiving, in the first time unit, the first time subunit except the first first time subunit, sending the network device to send The PDSCH and/or the PDCCH.

It should be noted that, in the embodiment of the present invention, the transceiver unit 510 can be implemented by a transceiver, and the determining unit 510 can be implemented by a processor.

As shown in FIG. 16, network device 600 can include a processor 610, a transceiver 620, and a memory 630. The memory 630 can be used to store information, and can also be used to store code, instructions, and the like executed by the processor 610.

By way of example and not limitation, a communication connection is implemented between the processor 610, the transceiver 620, and the memory 630 by, for example, a bus or the like.

It should be noted that the method performed by the processor 410 and the processor 610 is the same as that of the foregoing method embodiment, and details are not described herein. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The 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 the like. Programming logic devices, transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It can be understood that, in the embodiments of the present invention, the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, for example, static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). , SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (Synch Link DRAM) , SLDRAM) and direct memory bus random access memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

The terms used in the embodiments of the present invention and the appended claims are intended to be illustrative only and not to limit the embodiments of the invention.

For example, the term "and/or" in the embodiment of the present invention is merely an association relationship describing an associated object, indicating that there may be three relationships. Specifically, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

And "the" and "the"

For another example, the terms first, second, third, etc. may be used to describe various messages, requests, and terminals in embodiments of the present invention, but such messages, requests, and terminals should not be limited to these terms. These terms are only used to distinguish messages, requests, and terminals from one another.

Also for example, depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when" or "in response to determining" or "in response to detecting" ". Similarly, depending on the context, the phrase "if determined" or "if detected (conditions or events stated)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event) "Time" or "in response to a test (condition or event stated)".

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples 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 performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can 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 embodiments of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

If implemented in the form of a software functional unit and sold or used as a standalone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention, 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. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the method steps of an embodiment of the invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of the technical scope disclosed in the embodiments of the present invention. Variations or substitutions are intended to be included within the scope of the embodiments of the invention. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of protection of the claims.

Claims

A method of transmitting data, characterized in that the method comprises:

Determining a transmission opportunity, the transmission opportunity including a first time unit on the first frequency band;

If the transmission opportunity is successfully obtained, in the first time unit, multiple downlink signals are sent to multiple terminal devices on the first frequency band; or, if the transmission opportunity is obtained, the first In a time unit, on the first frequency band, no downlink signal is sent;

Receiving, in the second time unit adjacent to the first time unit, an uplink signal sent by the first terminal device of the multiple terminal devices, where the first sub-band is The first terminal device is determined in a frequency hopping manner in a plurality of sub-bands of the first frequency band, and the second time unit is after the first time unit.
The method according to claim 1, wherein if the length of the second time unit is less than or equal to a first threshold; wherein, in a second time unit adjacent to the first time unit, Receiving, in the first sub-band, an uplink signal sent by the first terminal device of the multiple terminal devices, including:

And receiving, in the second time unit, an uplink signal sent by at least one of the multiple terminal devices by using a time division multiplexing manner, where the at least one terminal device includes the first terminal device.
The method according to claim 2, wherein the receiving, in the second time unit, an uplink signal sent by at least one of the plurality of terminal devices by using a time division multiplexing manner, comprising:

Receiving, in the at least one second time subunit of the second time unit, an uplink signal sent by the first terminal device, where the at least one second time subunit is discontinuous in time.
The method according to claim 1, wherein if the length of the second time unit is greater than a first threshold; wherein, in the second time unit adjacent to the first time unit, Receiving, in a sub-band, an uplink signal sent by the first terminal device of the multiple terminal devices, including:

Receiving, in the first sub-band of the second time unit, an uplink signal sent by the first terminal device, where the first group of second time sub-units is Not continuous in time;

Receiving, in the second sub-band of the second time unit, an uplink signal sent by the first terminal device, where the second sub-band is the first The terminal device is determined in a frequency hopping manner in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.
The method according to any one of claims 1 to 4, wherein in the first time unit, on the first frequency band, multiple downlink signals are sent to a plurality of terminal devices, including :

Transmitting, by the one of the plurality of sub-bands, at least one of the plurality of downlink signals to the plurality of terminal devices, where the at least one downlink signal includes a primary synchronization signal PSS, The secondary synchronization signal SSS and the physical layer broadcast channel PBCH.
The method according to claim 5, wherein the transmitting, in one of the plurality of sub-bands, transmitting at least one of the plurality of downlink signals to the plurality of terminal devices, include:

Transmitting the PSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the SSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and for transmitting The sub-bands of the PBCH are different from each other.
The method according to claim 5, wherein the transmitting, in one of the plurality of sub-bands, transmitting at least one of the plurality of downlink signals to the plurality of terminal devices, include:

Transmitting the PSS and the SSS to the plurality of terminal devices in a time division multiplexing manner on one of the plurality of subbands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS and a sub-band for transmitting the PBCH are different.
The method according to any one of claims 5 to 7, wherein the one of the plurality of downlink signals is sent to the plurality of terminal devices on one of the plurality of sub-bands At least one downlink signal, including:

Transmitting the at least one downlink signal to the plurality of terminal devices on one physical resource block PRB of one of the plurality of sub-bands.
The method according to any one of claims 5 to 8, wherein the position of the sub-band for transmitting the at least one downlink signal is located in the middle of the first frequency band.
The method according to any one of claims 1 to 9, wherein the plurality of downlink signals comprise a physical downlink shared channel PDSCH and/or a physical downlink control channel PDCCH, wherein the first time is In the unit, sending, on the first frequency band, multiple downlink signals to multiple terminal devices, including:

Transmitting the PDSCH and/or the PDCCH to the multiple terminal devices in a frequency division multiplexing manner on the multiple sub-bands.
The method according to claim 10, wherein in the first time unit, transmitting, on the first frequency band, a plurality of downlink signals to a plurality of terminal devices, including:

Transmitting the at least one downlink signal repeatedly in the first time unit;

Transmitting the PDSCH and/or to the plurality of terminal devices in a sub-band other than the sub-band for transmitting the at least one downlink signal in the first frequency band in the first time unit. Or the PDCCH.
The method according to claim 10 or 11, wherein the at least one downlink is sent if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of subbands The transmit power of each of the downlink signals in the signal is energy in a range of one of the plurality of sub-bands.
The method according to claim 10, wherein in the first time unit, transmitting, on the first frequency band, a plurality of downlink signals to a plurality of terminal devices, including:

Transmitting the at least one downlink signal to the plurality of terminal devices in a first first time subunit of the first time unit, a start time of the first time unit and the first The starting time of the first time subunits is the same;

Transmitting the PDSCH and/or to the plurality of terminal devices on the first frequency band in the first time subunit except the first first time subunit in the first time unit. Or the PDCCH.
The method according to claim 10 or 13, wherein if the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of sub-bands, the at least one downlink The sum of the transmit powers of the signals is the energy in the range of the first frequency band.
The method according to any one of claims 1 to 14, wherein after the determining the transmission opportunity, the method further comprises:

In the first subframe of two adjacent radio frames, the transmission opportunity is acquired by listening to the LBT first.
A method of transmitting data, characterized in that the method comprises:

Receiving, by the first terminal device, a downlink signal sent by the network device in one of the plurality of sub-bands of the first frequency band in the first time unit;

Determining, by the first terminal device, the first sub-band in the plurality of sub-bands according to a frequency hopping manner;

Transmitting, by the first terminal device, an uplink signal to the network device in the second sub-band adjacent to the first time unit, where the second time unit is in the After the first time unit.
The method according to claim 16, wherein if the length of the second time unit is less than or equal to a first threshold; wherein the first terminal device is second adjacent to the first time unit Sending an uplink signal to the network device on the first sub-band, including:

The first terminal device sends an uplink signal to the network device in a time division multiplexing manner in the second time unit.
The method according to claim 17, wherein the first terminal device sends an uplink signal to the network device in a time division multiplexing manner in the second time unit, including:

The first terminal device sends an uplink signal to the network device in at least one second time subunit of the second time unit, and the at least one second time subunit is discontinuous in time.
The method according to claim 16, wherein if the length of the second time unit is greater than a first threshold; wherein the first terminal device is in a second time unit adjacent to the first time unit Sending an uplink signal to the network device on the first sub-band, including:

Transmitting, by the first terminal device, an uplink signal to the network device in the first sub-band, in the first group of second time sub-units of the second time unit, the first group of second time Subunits are not continuous in time;

Transmitting, in the second sub-band of the second time unit, an uplink signal to the network device, where the second sub-band is in accordance with the first terminal device The manner of frequency hopping is determined in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.
The method according to any one of claims 16 to 19, wherein the first terminal device receives the network device in one of the plurality of sub-bands of the first frequency band in the first time unit The downlink signal sent includes:

The first terminal device receives at least one of the following signals sent by the network device on one of the plurality of sub-bands:

The primary synchronization signal PSS, the secondary synchronization signal SSS, and the physical layer broadcast channel PBCH.
The method according to claim 20, wherein the first terminal device receives, in a first time unit, a downlink signal sent by the network device, in a sub-band of the plurality of sub-bands of the first frequency band, including :

Receiving, by the first terminal device, the PSS sent by the network device on one of the multiple sub-bands; and/or,

Receiving, by the first terminal device, the SSS sent by the network device on one of the multiple sub-bands; and/or,

Receiving, by the first terminal device, the PBCH sent by the network device on one of the multiple sub-bands, where the sub-band for transmitting the PSS, and the sub-band for transmitting the SSS The frequency bands and the sub-bands used to transmit the PBCH are different from each other.
The method according to claim 20, wherein the first terminal device receives, in a first time unit, a downlink signal sent by the network device, in a sub-band of the plurality of sub-bands of the first frequency band, including :

Receiving, by the network device, the first terminal device on one of the multiple sub-bands The PSS and the SSS; and/or,

Receiving, by the first terminal device, the PBCH sent by the network device, in a sub-band of the multiple sub-bands, where a sub-band for transmitting the PSS and a sub-sent for transmitting the PBCH are received The frequency bands are not the same.
The method according to any one of claims 20 to 22, wherein the first terminal device receives the network device in one of the plurality of sub-bands of the first frequency band in the first time unit The downlink signal sent includes:

The first terminal device receives a downlink signal sent by the network device on one physical resource block PRB of one of the plurality of sub-bands.
The method according to any one of claims 16 to 23, wherein the first terminal device receives the network device in one of the plurality of sub-bands of the first frequency band in the first time unit The downlink signal sent includes:

The first terminal device receives the physical downlink shared channel PDSCH and/or the physical downlink control channel PDCCH transmitted by the network device in one of the plurality of sub-bands of the first frequency band in the first time unit.
The method according to claim 24, wherein the first terminal device receives, in a first time unit, a downlink signal sent by the network device, in a sub-band of the plurality of sub-bands of the first frequency band, including :

Receiving, by the first terminal device, the at least one downlink signal repeatedly sent by the network device in the first time unit;

Receiving, by the network device, the first terminal device, in the first time unit, on a sub-band other than the sub-band for transmitting the at least one downlink signal in the first frequency band The PDSCH and/or the PDCCH.
The method according to claim 24, wherein the first terminal device receives, in a first time unit, a downlink signal sent by the network device, in a sub-band of the plurality of sub-bands of the first frequency band, including :

Receiving, by the first terminal device, the downlink signal that is repeatedly sent by the network device in the first first time subunit of the first time unit, where the first time unit starts and the first time The starting time of the first time subunits is the same;

Receiving, by the first terminal device, the PDSCH and/or the network device sent in a first time subunit other than the first first time subunit in the first time unit PDCCH.
A network device, where the network device includes:

a determining unit, configured to determine a transmission opportunity, where the transmission opportunity includes a first time unit on the first frequency band;

a transceiver unit, the transceiver unit is configured to:

If the transmission opportunity is successfully obtained, in the first time unit, multiple downlink signals are sent to multiple terminal devices on the first frequency band; or, if the transmission opportunity is obtained, the first In a time unit, on the first frequency band, no downlink signal is sent;

Receiving, in the second time unit adjacent to the first time unit, an uplink signal sent by the first terminal device of the multiple terminal devices, where the first sub-band is The first terminal device is determined in a frequency hopping manner in a plurality of sub-bands of the first frequency band, and the second time unit is after the first time unit.
The network device according to claim 27, wherein the length of the second time unit is less than or equal to a first threshold; wherein the transceiver unit is specifically configured to:

Receiving, in the second time unit, at least one of the plurality of terminal devices in a time division multiplexing manner An uplink signal sent by the terminal device, where the at least one terminal device includes the first terminal device.
The network device according to claim 28, wherein the transceiver unit is specifically configured to:

Receiving, in the at least one second time subunit of the second time unit, an uplink signal sent by the first terminal device, where the at least one second time subunit is discontinuous in time.
The network device according to claim 27, wherein the length of the second time unit is greater than a first threshold; wherein the transceiver unit is specifically configured to:

Receiving, in the first sub-band of the second time unit, an uplink signal sent by the first terminal device, where the first group of second time sub-units is Not continuous in time;

Receiving, in the second sub-band of the second time unit, an uplink signal sent by the first terminal device, where the second sub-band is the first The terminal device is determined in a frequency hopping manner in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.
The network device according to any one of claims 27 to 30, wherein the transceiver unit is specifically configured to:

Transmitting, by the one of the plurality of sub-bands, at least one of the plurality of downlink signals to the plurality of terminal devices, where the at least one downlink signal includes a primary synchronization signal PSS, The secondary synchronization signal SSS and the physical layer broadcast channel PBCH.
The network device according to claim 31, wherein the transceiver unit is specifically configured to:

Transmitting the PSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the SSS to the plurality of terminal devices on one of the plurality of sub-bands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and for transmitting The sub-bands of the PBCH are different from each other.
The network device according to claim 31, wherein the transceiver unit is specifically configured to:

Transmitting the PSS and the SSS to the plurality of terminal devices in a time division multiplexing manner on one of the plurality of subbands; and/or,

Transmitting the PBCH to the plurality of terminal devices on one of the plurality of sub-bands; wherein a sub-band for transmitting the PSS and a sub-band for transmitting the PBCH are different.
The network device according to any one of claims 31 to 33, wherein the transceiver unit is specifically configured to:

Transmitting the at least one downlink signal to the plurality of terminal devices on one physical resource block PRB of one of the plurality of sub-bands.
The network device according to any one of claims 31 to 34, characterized in that the position of the sub-band for transmitting the at least one downlink signal is located in the middle of the first frequency band.
The network device according to any one of claims 27 to 35, wherein the plurality of downlink signals comprise a physical downlink shared channel (PDSCH) and/or a physical downlink control channel (PDCCH), wherein the transceiver unit is specifically configured to: :

Transmitting the PDSCH and/or the PDCCH to the multiple terminal devices in a frequency division multiplexing manner on the multiple sub-bands.
The network device according to claim 36, wherein the transceiver unit is specifically configured to:

Transmitting the at least one downlink signal repeatedly in the first time unit;

Transmitting the PDSCH and/or to the plurality of terminal devices in a sub-band other than the sub-band for transmitting the at least one downlink signal in the first frequency band in the first time unit. Or the PDCCH.
The network device according to claim 36 or 37, wherein the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of subbands, the at least one The transmit power of each downlink signal in the downlink signal is energy in a range of one of the plurality of sub-bands.
The network device according to claim 36, wherein the transceiver unit is specifically configured to:

Transmitting the at least one downlink signal to the plurality of terminal devices in a first first time subunit of the first time unit, a start time of the first time unit and the first The starting time of the first time subunits is the same;

Transmitting the PDSCH and/or to the plurality of terminal devices on the first frequency band in the first time subunit except the first first time subunit in the first time unit. Or the PDCCH.
The network device according to claim 36 or 39, wherein the at least one downlink signal is sent on one physical resource block PRB of one of the plurality of subbands, the at least one The sum of the transmission powers of the downlink signals is the energy in the range of the first frequency band.
The network device according to any one of claims 27 to 40, wherein the determining unit is further configured to:

In the first subframe of two adjacent radio frames, the transmission opportunity is acquired by listening to the LBT first.
A terminal device, the terminal device includes:

The transceiver unit is configured to receive, in the first time unit, a downlink signal sent by the network device in one of the multiple sub-bands of the first frequency band;

a determining unit, configured to determine a first sub-band among the plurality of sub-bands according to a frequency hopping manner;

The transceiver unit is further configured to send an uplink signal to the network device in the second sub-band adjacent to the first time unit, where the second time unit is After the first time unit.
The terminal device according to claim 42, wherein the length of the second time unit is less than or equal to a first threshold; wherein the transceiver unit is specifically configured to:

In the second time unit, an uplink signal is sent to the network device by means of time division multiplexing.
The terminal device according to claim 43, wherein the transceiver unit is specifically configured to:

And transmitting, in the at least one second time subunit of the second time unit, an uplink signal to the network device, the at least one second time subunit being discontinuous in time.
The terminal device according to claim 42, wherein if the length of the second time unit is greater than a first threshold, the transceiver unit is specifically configured to:

Transmitting, in the first sub-band of the second time unit, an uplink signal to the network device, where the first group of second time sub-units are in time Discontinuous;

Transmitting, in the second sub-band of the second time unit, an uplink signal to the network device, where the second sub-band is a frequency hopping of the terminal device The manner is determined in a plurality of sub-bands of the first frequency band, and the second group of second time sub-units are discontinuous in time.
The terminal device according to any one of claims 42 to 45, wherein the transceiver unit is specifically configured to:

Receiving at least one of the following signals transmitted by the network device on one of the plurality of sub-bands:

The primary synchronization signal PSS, the secondary synchronization signal SSS, and the physical layer broadcast channel PBCH.
The terminal device according to claim 46, wherein the transceiver unit is specifically configured to:

Receiving, on one of the plurality of sub-bands, the PSS sent by the network device; and/or,

Receiving, in one of the plurality of sub-bands, the SSS sent by the network device; and/or,

Receiving, in one of the plurality of sub-bands, the PBCH sent by the network device, where a sub-band for transmitting the PSS, a sub-band for transmitting the SSS, and a transmitting station The sub-bands of the PBCH are different from each other.
The terminal device according to claim 46, wherein the transceiver unit is specifically configured to:

Receiving, on one of the plurality of sub-bands, the PSS and the SSS sent by the network device; and/or,

Receiving, in one of the plurality of sub-bands, the PBCH sent by the network device; wherein, a sub-band for transmitting the PSS and a sub-band for transmitting the PBCH are different.
The terminal device according to any one of claims 46 to 48, wherein the transceiver unit is specifically configured to:

Receiving, on a physical resource block PRB of one of the plurality of sub-bands, a downlink signal sent by the network device.
The terminal device according to any one of claims 42 to 49, wherein the transceiver unit is specifically configured to:

Receiving, in a first time unit, a physical downlink shared channel (PDSCH) and/or a physical downlink control channel (PDCCH) transmitted by the network device, in one of a plurality of sub-bands of the first frequency band.
The terminal device according to claim 50, wherein the transceiver unit is specifically configured to:

Receiving, in the first time unit, the at least one downlink signal repeatedly sent by the network device;

Receiving, in the first time unit, the PDSCH sent by the network device, in a sub-band other than a sub-band for transmitting the at least one downlink signal, in the first frequency band. The PDCCH.
The terminal device according to claim 50, wherein the transceiver unit is specifically configured to:

Receiving, in a first first time subunit of the first time unit, a downlink signal that is repeatedly sent by the network device, a start time of the first time unit, and the first first time subunit The starting moment is the same;

Receiving, in the first time unit, the first time subunit except the first first time subunit, the PDSCH and/or the PDCCH sent by the network device.