WO2018188096A1

WO2018188096A1 - Communication method, frame structure and device

Info

Publication number: WO2018188096A1
Application number: PCT/CN2017/080670
Authority: WO
Inventors: 张武荣; 李振宇; 南杨; 李汉涛
Original assignee: 华为技术有限公司
Priority date: 2017-04-14
Filing date: 2017-04-14
Publication date: 2018-10-18
Also published as: CN110463075A; CN110463075B

Abstract

A communication method, a frame structure and a device, which are used for realising the use of an unlicensed frequency spectrum by a wireless communication device so that same carries out communication. The communication method comprises: a first device communicating, on a first time unit and based on a frequency hopping method, with a second device by means of first-type frames, wherein the first-type frames occupy a first bandwidth; and the first device communicating, on a second time unit and based on a non-frequency hopping method, with a third device by means of second-type frames, wherein the second-type frames occupy a second bandwidth.

Description

Communication method, frame structure and device

Technical field

The present application relates to the field of wireless communications, and in particular, to a communication method, a frame structure, and a device.

Background technique

The spectrum is the basis of wireless communication. In order to ensure the fair use of the spectrum, wireless communication equipment must comply with the spectrum regulations of the corresponding regions when using the spectrum in different regions. In particular, wireless communication equipment needs to comply with specific regulations when using unlicensed spectrum. rule. Effective use of unlicensed spectrum can greatly improve the spectral efficiency of wireless communications.

At present, the technical solutions for wireless communication devices using unlicensed spectrum for uplink and downlink communication are classified into two categories. One type is a communication scheme based on frequency hopping. Frequency hopping refers to a communication scheme based on frequency hopping when a frequency band gain is continuously switched in a frequency band to improve frequency division gain and a wireless communication device occupies a narrow band for communication. Taking the communication scheme of the base station based on the frequency hopping communication scheme as the user equipment (UE) as an example, the main problem of the communication scheme based on the rule of using the unlicensed spectrum is that the base station can only communicate with a single UE at a certain time. Equivalent to a single-carrier system, so the system capacity is limited; since the communication scheme is based on frequency hopping, the UE does not know the time and frequency of the base station transmitting the synchronization signal before synchronization, and the UE continuously tries to receive the synchronization signal on one channel. Because the rules stipulate that the probability of the base station using each channel is equal, if the UE misses a synchronization signal, it needs to wait for the base station to hop through all the channels to receive the synchronization signal sent by the base station again, thus causing long synchronization time and power consumption of the UE. Big. The other type is a communication scheme based on non-frequency hopping, which is based on a non-frequency hopping communication scheme when the wireless communication device occupies a broadband communication. Taking the communication of the base station based on the non-frequency hopping communication scheme with the UE as an example, since the Power Spectral Density (PSD) of the base station is required to be limited to a certain value in the non-frequency hopping system, the base station transmits the transmission power of the common control signal. Smaller, Maximum Coupling Loss (MCL) is lower, so there is a problem of limited coverage of non-frequency hopping systems.

In summary, there is an urgent need to design a communication scheme under unlicensed spectrum, and to improve the existing wireless communication equipment using the unlicensed spectrum for communication, while satisfying the regulatory constraints on the use of unlicensed spectrum. The above problem.

Summary of the invention

The embodiment of the present application provides a communication method, a frame structure, and a device, which are used to implement communication by using a non-licensed spectrum by a wireless communication device. The technical solution provided by the embodiment of the present application is also applicable to a wireless communication device for applying a licensed spectrum for communication. Scenes.

In a first aspect, an embodiment of the present application provides a communication method, including:

The first device communicates with the second device by using the first type of frame on the first time unit according to the frequency hopping manner, where the first type of frame occupies the first bandwidth;

The first device communicates with the third device by using the second type of frame on the second time unit in a non-frequency hopping manner, and the second type of frame occupies the second bandwidth.

At least one first type of frame may be configured on the first time unit, and at least one second type of frame may be configured on the second time unit. The first bandwidth can be understood as the bandwidth occupied by the frequency hopping device in one transmission/reception process. Generally, the bandwidth occupied by the frequency hopping device is called a narrowband, for example, the narrowband has a minimum bandwidth of 25 kHz. Frequency hopping means not during communication Breaking the frequency point in the frequency band to improve the frequency division gain. The first type of frame based on the frequency hopping method means that when a plurality of first type frames are configured in the frame structure, the plurality of first types are in the frame structure. Any two adjacent first type frames occupying different frequency points within the system bandwidth in the order of the frames. The second bandwidth can be understood as the bandwidth occupied by the non-frequency hopping device in one transmission/reception process. Generally, the bandwidth occupied by the non-frequency hopping device is called broadband, for example, the minimum bandwidth of the broadband is 500 kHz. The second device and the third device may be the same device or different devices. Based on the regulations for using the unlicensed spectrum, considering that the coverage of the first type of frame occupying the first bandwidth is far, and the coverage of the second type of frame occupying the second bandwidth is relatively close, the first device in the above method passes the first A type of frame can communicate with its own remote device or with its own near-point device. In this case, the second device can be either a remote device of the first device or a near-point device of the first device. The first device can communicate with its own near-point device through the second type of frame, and the third device can be the near-point device of the first device.

The number and arrangement order of the configured first type frame and the second type frame are not limited in the foregoing method, and the number and arrangement order of the first type frame and the second type frame may be flexibly configured according to service requirements. The above method can realize that the wireless communication device uses the unlicensed spectrum for communication, and can improve the existing synchronization time and power consumption of the existing frequency hopping-based communication scheme on the basis of satisfying the regulations for using the unlicensed spectrum for communication. The problem of limited system capacity and the problem of limited system coverage that improves existing non-frequency hopping based communication schemes.

In a possible implementation, the first device communicates with the second device by using the first type of frame on the first time unit in a frequency hopping manner, including:

The first device transmits downlink data including a synchronization signal and/or a broadcast signal to the second device by using the first type of frame on the first time unit according to a frequency hopping manner.

Based on the regulations using unlicensed spectrum, considering that the coverage of the first type of frame occupying the first bandwidth is far, synchronization between the near-point devices can be achieved by transmitting the synchronization signal and/or the broadcast signal through the first type of frame. Broadcasting can also synchronize and broadcast between remote devices.

In a possible implementation manner, the first type of frame may be based on an adaptive frequency hopping method or a non-adaptive frequency hopping mode. Adaptive means that the channel occupancy evaluation is performed before the device transmits, and the channel occupancy evaluation is used to determine that the channel can be re-transmitted when the channel is occupied. Non-adaptive means that the channel occupancy evaluation is not performed before the device transmits, and the signal is directly sent. It is a commonly used channel estimation technique.

When the first type of frame is based on an adaptive frequency hopping mode, the first type of frame includes a first part, a second part, and a third part, where the first part is used by the first device to determine whether to occupy the first Bandwidth, the second part is used by the first device to send downlink data to the second device when occupying the first bandwidth, and the third part is used by the first device to occupy the first Receiving uplink data sent by the second device when the bandwidth is used.

When the first type of frame is based on a non-adaptive frequency hopping mode, the first type of frame includes a fourth part and a fifth part, and the fourth part is used by the first device to send a downlink to the second device Data, the fifth part is used by the first device to receive uplink data sent by the second device.

In this way, the first device can communicate with the second device through the first type of frame based on the frequency hopping manner, and the coverage of the first type of frame based on the frequency hopping is far.

In a possible implementation manner, the second type of frame may be based on an adaptive non-frequency hopping manner, and the second type of frame includes a sixth part, a seventh part, and an eighth part, where the sixth part is used for Determining whether the second device occupies the second bandwidth, where the seventh part is used by the first device to send downlink data to the third device when occupying the second bandwidth, where the eighth part is used for The first device receives uplink data sent by the third device when occupying the second bandwidth.

In this way, the first device can communicate with the third device through the second type of frame based on the non-frequency hopping mode.

Optionally, the downlink data sent by the first device by using the seventh part may include a synchronization signal and/or a broadcast signal, and may not include a synchronization signal and/or a broadcast signal. When the second type of frame is used to transmit a synchronization signal and/or a broadcast signal, synchronization and broadcasting between near-point devices can be achieved, compared to synchronization signals and/or broadcasts transmitted by near-point users through the first type of frame. The signal is used for synchronization and broadcasting, and the synchronization signal and/or the broadcast signal transmitted by the near-point user through the second type of frame are synchronized, the synchronization consumed by the device during broadcasting, the broadcast time is short, and the power consumption of the device is small. When the second type of frame is not used to transmit the synchronization signal and/or the broadcast signal, the saved resources can be used to transmit other downlink data.

Optionally, when the downlink data sent by the first device by using the seventh part includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal are repeatedly transmitted in the time domain.

Thus, the scheme of repeatedly transmitting the synchronization signal and/or the broadcast signal can improve the coverage capability of the system to some extent, compared to the scheme of transmitting only one synchronization signal and/or broadcast signal.

Optionally, when the downlink data sent by the first device by using the seventh part includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy a specified frequency point in the second bandwidth.

Since the frequency of transmitting the synchronization signal and/or the broadcast signal is fixed, the third device receiving the synchronization signal and/or the broadcast signal knows the designated frequency point, and thus can directly receive the synchronization signal and/or at the designated frequency point. Broadcast signals, which in turn reduce the consumption of third device synchronization, broadcast time, and power consumption.

Optionally, in a case where the downlink data sent by the first device includes sending a synchronization signal and/or a broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrowband, so that the narrowband device and the broadband device The synchronization signal and/or the broadcast signal can be received, and the bandwidth occupied by the synchronization signal and/or the broadcast signal can be broadband, and the broadband device can receive the synchronization signal and/or the broadcast signal.

In a second aspect, the embodiment of the present application provides a frame structure, where the frame structure includes a first type of frame and a second type of frame, where the first type of frame occupies a first time unit based on a frequency hopping manner, the first The type frame occupies a first bandwidth, the second type frame occupies a second time unit based on a non-frequency hopping manner, and the second type frame occupies a second bandwidth.

In a possible implementation manner, the downlink data used by the first type of frame for sending includes a synchronization signal and/or a broadcast signal.

In a possible implementation manner, the first type of frame includes a first part, a second part, and a third part, where the first part is used to determine whether to occupy the first bandwidth, and the second part is used to Transmitting downlink data when the first bandwidth is occupied, and the third part is configured to receive uplink data when occupying the first bandwidth; or

The first type of frame includes a fourth portion for transmitting downlink data and a fifth portion for receiving uplink data.

In a possible implementation, the second type of frame includes a sixth part, a seventh part, and an eighth part, where the sixth part is used to determine whether to occupy the second bandwidth, and the seventh part is used In transmitting downlink data, the eighth portion is configured to receive uplink data when occupying the second bandwidth.

In a possible implementation manner, the downlink data sent by the seventh part includes a synchronization signal and/or a broadcast signal; or the downlink data sent by the seventh part does not include a synchronization signal and/or a broadcast signal.

In a possible implementation manner, when the downlink data sent by the seventh part includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal are repeatedly transmitted in the time domain.

In a possible implementation, when the downlink data sent by the seventh part includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy a specified frequency point in the second bandwidth.

Optionally, in the case that the downlink data sent by the seventh part includes sending the synchronization signal and/or the broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both the narrowband device and the broadband device can receive. To the synchronization signal and/or the broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be broadband, and the broadband device may receive the synchronization signal and/or the broadcast signal.

In a third aspect, the embodiment of the present application further provides a first device, including:

a processing unit, configured to control, by using a frequency hopping manner, the transceiver unit to communicate with the second device by using the first type of frame, where the first type of frame occupies the first bandwidth, and is further configured to control the transceiver unit Communicating with the third device by using the second type of frame on the second time unit in a non-frequency hopping manner, the second type of frame occupying the second bandwidth;

The transceiver unit is configured to receive data and/or transmit data under the control of the processing unit.

In a possible implementation manner, when the processing unit controls the transceiver unit to communicate with the second device by using the first type of frame in a frequency hopping manner on the first time unit, the processing unit is specifically configured to:

Controlling, by the transceiver unit, downlink data including a synchronization signal and/or a broadcast signal to the second device by using the first type of frame on the first time unit according to a frequency hopping manner.

Determining, by the first part of the first type of frame, whether to occupy the first bandwidth; controlling the transceiver unit to pass the second part of the first type of frame to the second device when occupying the first bandwidth Transmitting downlink data, and controlling the transceiver unit to receive uplink data sent by the second device by using a third part of the first type of frame; or

Controlling, by the transceiver unit, sending downlink data to the second device by using a fourth part of the first type of frame, and controlling the transceiver unit to receive, by using the fifth part of the first type of frame, the second device to send Upstream data.

In a possible implementation manner, when the processing unit controls the transceiver unit to communicate with the third device by using the second type of frame in the non-frequency hopping manner on the second time unit, the processing unit is specifically configured to:

Determining whether the second bandwidth is occupied by the sixth portion of the second type of frame;

When the second bandwidth is occupied, the transceiver unit is configured to send downlink data to the third device by using a seventh portion of the second type frame, and control the transceiver unit to pass the eighth frame of the second type frame. The uplink data sent by the third device is partially received.

In a fourth aspect, the embodiment of the present application further provides a first device, including a processor, a transceiver, and a memory;

The processor is configured to read a program in the memory, and perform the method in any one of the first aspect and the first aspect;

The transceiver is configured to receive data and/or transmit data under the control of the processor.

In a fifth aspect, the embodiment of the present application further provides a computer storage medium for storing computer software instructions used by the first device, which includes a program designed to execute the foregoing embodiment.

DRAWINGS

Figure 1 is a schematic diagram of the principle of LBT technology;

2 is a schematic diagram of a network architecture provided by an embodiment of the present application;

FIG. 3A is a schematic diagram of a frame structure according to an embodiment of the present application;

FIG. 3B is a schematic diagram of another frame structure provided by an embodiment of the present application; FIG.

4A is a schematic structural diagram of a first type of frame according to an embodiment of the present disclosure;

FIG. 4B is a schematic structural diagram of another first type of frame according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a second type of frame according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of a communication method according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a first device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another first device according to an embodiment of the present disclosure.

detailed description

Wireless communication is achieved by using spectrum to achieve wireless communication. The spectrum can be roughly divided into two categories, one of which is a licensed spectrum and the other is an unlicensed spectrum. The technical solution provided by the embodiment of the present application is applicable to a scenario in which a wireless communication device uses a spectrum to communicate, and is particularly applicable to a scenario in which a wireless communication device uses an unlicensed spectrum for communication, such as an unlicensed spectrum of 2.4 GHz.

In order to ensure fair use of the spectrum, wireless communication devices must comply with the spectrum regulations of the corresponding regions when using the spectrum in different regions. In particular, wireless communication devices need to follow specific regulatory rules when using unlicensed spectrum. For example, the European Telecommunications Standards Institute (ETSI) divides devices using unlicensed bands of 2.4 GHz into wideband modulation devices and frequency hopping devices in the spectrum regulation ETSI EN 300 328. And further refined into adaptive devices and non-adaptive devices. ETSI stipulates in the spectrum regulations that different devices are subject to the following rules:

(1) The adaptive frequency hopping device based on LBT needs to meet the limitation that the output power is less than 20dBm and the transmission time is not more than 60ms;

(2) Based on the non-adaptive frequency hopping equipment, the output power should be less than 20dBm, the Medium Utilization (MU) rate should be no more than 10%, the single transmission time should be no more than 5ms, and the cumulative transmission time should be no more than 15ms. for:

MU=(P/100mW)*DC

Where P is the output power and DC is the duty cycle. When P=100mW, DC<=10%, MU<=10%;

(3) The LBT-based adaptive wideband modulation device needs to meet the power spectral density (PSD) of less than 10 dBm/MHz, the output power is less than 20 dBm, and the channel occupancy time is less than 10 ms.

Compared with European regulations on the use of the 2.4 GHz spectrum, the Federal Communications Commission (FCC) has relatively few regulations on the use of the 2.4 GHz spectrum, as summarized in Table 1 below:

Table I

Among them, the frequency hopping means that the frequency point is continuously switched in the frequency band during transmission to improve the frequency division gain. Adaptive means that the channel occupancy evaluation is performed before the device transmits (Listen Before Talk, LBT), and the channel occupancy evaluation is used to determine that the channel can be re-transmitted when the channel is occupied. Non-adaptive means that the channel is not used before the device transmits. Occupancy evaluation, send signals directly. The adaptive device needs to evaluate the channel usage before using the unlicensed spectrum for communication. LBT is a commonly used channel estimation technology. The schematic diagram of the LBT technology is shown in Figure 1. The process of channel estimation through LBT includes: Before the data is sent, the device first performs a Clear Channel Assessment (CCA) to measure the energy on the current channel. If the measured energy exceeds the preset threshold, the channel is considered to be occupied, and the data cannot be sent at this time; If the measured energy is lower than the preset threshold, the channel is considered to be idle, and the channel can be occupied to transmit data. In this way, time division multiplexing is used to preempt the channel between devices. Since multiple systems share unlicensed bands, the LBT process avoids signal interference between multiple systems.

Based on the above-mentioned rules for using unlicensed spectrum, the currently designed wireless communication device uses an unlicensed spectrum for communication, and is divided into a frequency hopping-based communication scheme and a non-frequency hopping-based communication scheme. When the wireless communication device occupies a narrowband for communication, The frequency hopping-based communication scheme, for example, the minimum bandwidth of the narrowband is 25 kHz, and the non-frequency hopping based communication scheme when the wireless communication device occupies the broadband for communication, for example, the minimum bandwidth of the broadband is 500 kHz. As described in the background art, the currently designed frequency hopping-based communication scheme has the problems of long UE synchronization time, large power consumption, and limited system capacity. Currently, the non-frequency hopping based communication scheme is designed to have limited system coverage. .

Therefore, the embodiment of the present application provides a communication method, a frame structure, and a device, which are used to implement communication by using a non-licensed spectrum by a wireless communication device. The technical solution provided by the embodiment of the present application is also applicable to a wireless communication device for applying a licensed spectrum for communication. Scenes. In the technical solution provided by the embodiment of the present application, the first device uses a preset frame structure to communicate with the second device, where the preset frame structure is a frame structure combining frequency hopping and non-hopping frequency designed in the embodiment of the present application. The technical solution provided by the embodiment of the present application can improve the existing synchronization time of the frequency hopping-based communication solution, the power consumption is large, and the system capacity is limited, on the basis of satisfying the rules and regulations for using the unlicensed spectrum. And improve now Some systems based on non-frequency hopping communication schemes have limited system coverage. The method and the device are based on the same inventive concept. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description is not repeated.

A schematic diagram of a network architecture involved in the embodiment of the present application is as shown in FIG. 2, and relates to a first device, and a second device and/or a third device that communicates with the first device, where the first device may have one or more, and The second device connected to each first device may have one or more, and the third device connected to each first device may have one or more, and the second device and the third device may be the same device or different. device. The first device is a network device, and may be a base station, or an access point (AP), or may refer to a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface. . The network device can be configured to convert the received air frame with an Internet Protocol (IP) packet as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network can include the Internet. Protocol (IP) network. Network devices can also coordinate attribute management of air interfaces. For example, the network device may be a Global System for Mobile Communications (GSM) or a Code Division Multiple Access (CDMA) network device (BTS, Base Transceiver Station), or may be a bandwidth. The network device (NodeB) in the code division multiple access (WCDMA) may also be an evolved network device (evolutional Node B, eNB or e-NodeB) in LTE. The example is not limited.

The second device and the third device are wireless terminal devices, which may be devices that provide voice and/or data connectivity to the user, handheld devices with wireless connectivity, or other processing devices that are connected to the wireless modem. The wireless terminal device can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and has a mobile The computers of the terminal devices, for example, may be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital Assistant, PDA) and other equipment. The wireless terminal device may also be referred to as a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, and an Access Point. , Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment, this application It is not limited in the embodiment.

It should be understood that in the description of the present application, the terms "first", "second" and the like are used to distinguish the purpose of the description, and are not to be construed as indicating or implying relative importance, nor as indicating or implying. order.

The technical solutions provided by the embodiments of the present application are described below.

The embodiment of the present application provides a frame structure, which is a frame structure combining frequency hopping and non-hopping frequency designed by the embodiment of the present application. The frame structure provided by the embodiment of the present application includes a first type of frame and a second type of frame. The first type of frame occupies the first time unit according to the frequency hopping mode, the first type of frame occupies the first bandwidth, and the second type of frame is based on the non-hopped frame. The frequency mode occupies the second time unit, and the second type frame occupies the second bandwidth.

The first time unit refers to a collective name of the time occupied by the first type frame in the time domain in the frame structure, and the second time unit refers to a collective term of the time occupied by the second type frame in the time domain in the frame structure. In the frame structure, at least one first type of frame may be configured on the first time unit, and at least one second type of frame may be configured on the second time unit.

In this embodiment, the frame duration of each first type of frame and the frame duration of each second type of frame are not limited, and each first The frame duration of the type frame and the frame duration of each second type frame can be flexibly configured according to service requirements; the frame duration of the configured first type of frame should not exceed the maximum frame duration of the frequency hopping-based frame specified by the regulations, and the configured The frame duration of the second type of frame shall not exceed the maximum frame duration of the non-hopping-based frame specified by the regulations. For example, if the maximum frame duration of the non-hopping-based frame is 10 ms, the frame duration of the second type of frame may be configured as Less than or equal to 10ms. Also in this embodiment, it is not limited whether there is a time interval between adjacent two frames and how much the time interval is set.

In this embodiment, the first type of frame occupies the first bandwidth, and the first bandwidth can be understood as the bandwidth occupied by the frequency hopping device in one transmission/reception process. Generally, the bandwidth occupied by the frequency hopping device is called a narrowband, for example, a narrowband minimum bandwidth. It is 25 kHz. The frequency hopping means that the frequency point is continuously switched in the frequency band during the communication process to improve the frequency division gain. In this embodiment, the first type of frame based on the frequency hopping method refers to when multiple frame types of the first type are configured in the frame structure. Any two adjacent first type frames occupying different frequency points within the system bandwidth in the order of the plurality of first type frames in the frame structure. The second type of frame occupies the second bandwidth, and the second bandwidth can be understood as the bandwidth occupied by the non-frequency hopping device in one transmission/reception process. Generally, the bandwidth occupied by the non-frequency hopping device is called broadband, for example, the minimum bandwidth of the broadband is 500 kHz. The second type of bandwidth may be the full bandwidth of the system, or may be part of the total bandwidth of the system. For example, when the full bandwidth of the system is 20 MHz, the second bandwidth may be less than or equal to 20 MHz. It should be noted that, as the technology advances, the value ranges of the first and second bandwidths in the present embodiment may change. The frequency hopping may be used to distinguish the current embodiment. The first bandwidth and the second bandwidth. Optionally, the first bandwidth is smaller than the second bandwidth.

The number and arrangement order of the first type frame and the second type frame configured in the frame structure are not limited in this embodiment, and the number and arrangement order of the first type frame and the second type frame may be flexibly configured according to service requirements. For example, in the time domain, multiple first type frames may be continuously configured, and second type frames may be configured. Multiple second type frames may be continuously configured, and the first type of frames may be configured, or may be a preset first type. The frame is alternately configured with a preset number of second type frames. Therefore, the frame structure provided in this embodiment may be in a variety of configurations. The following is an example of a possible configuration of the frame structure provided in this embodiment.

For example: In the frame structure shown in FIG. 3A, the horizontal direction is the time domain, the vertical direction is the frequency domain, and the system bandwidth is 20 MHz. The first type frame and the second type frame alternately appear, and the adjacent first type frame and the first There is no time interval between the two types of frames. In FIG. 3A, the first type of frame includes a first type of frame 1, a first type of frame 2, a first type of frame N, and N is an integer of not less than 1, and when N is an integer of not less than 2, the first type of frame 1 Until the first type of frame N occupies the first time unit, any two adjacent first type frames of the first type of frame 1 to the first type of frame N occupy different frequency points within the full bandwidth of the system, indicating the first type of frame The frequency hopping based scheme, for example, the first type of frame N-1 and the first type of frame N occupy different frequency points within the full bandwidth of the system, and the frame duration of each first type of frame can be flexibly configured. In FIG. 3A, the second type of frame includes a second type of frame 1, a second type of frame 2, a second type of frame M, M is an integer not less than 1, and each second type of frame occupies the full bandwidth of the system, each The frame duration of the second type of frame can be flexibly configured, for example, configured to be 10 ms. In FIG. 3A, N=M+1, and may also be N=M.

It should be noted that the first frame configured in the frame structure shown in FIG. 3A is a first type of frame, and the first frame configured in the frame structure provided in this embodiment may also be a second type of frame. =N+1, or N=M.

For example, in the frame structure shown in FIG. 3B, the horizontal direction is the time domain and the vertical direction is the frequency domain. The full bandwidth of the system is 20 MHz, and there is no time interval between adjacent two frames. The order of configuration and the number of frames of the first type and the second type are shown in the frame structure shown in FIG. 3B. The first type of frame 1 to the first type of frame P are continuously configured on the first time unit in FIG. 3B, P is an integer not less than 2, and the second type of frame 1 to the second type of frame Q are continuously configured on the second time unit. Q is an integer not less than 2, and P and Q may be the same or different. The frame duration of each first type of frame and the frame duration of each second type of frame can be flexibly configured. For example, the frame duration of each second type of frame can be configured to be 10 ms, and each second type of frame is occupied. The full bandwidth of the system.

Based on the regulations for using the unlicensed spectrum, considering that the coverage of the first type of frame occupying the first bandwidth is far, and the coverage of the second type of frame occupying the second bandwidth is relatively close, the first type of frame can be implemented. The communication between the remote devices can also implement the communication between the near-point devices. The device at the two ends of the device at the two ends of the remote device or the near-point device can receive the first type of frame sent by the peer device. The two types of frames can implement the communication between the devices at the near-point devices. The device at the two ends of the device that is close to the device can receive the second type of frames sent by the peer device. A device at one end cannot receive the second type of frame sent by the peer device or the second type frame sent by the peer device does not perform well. For example, the distance threshold can be used to distinguish whether the two devices are far-end devices or near-point devices. For one device, the peer device whose physical distance from the device exceeds the distance threshold is called the device far. The point device, the peer device whose physical distance from the device does not exceed the distance threshold is referred to as a near-point device of the device, and the distance threshold may be set based on the coverage of the second type of frame.

In one possible design of this embodiment, the first type of frame may be used to transmit a synchronization signal and/or a broadcast signal. Based on the regulations using unlicensed spectrum, considering that the coverage of the first type of frame occupying the first bandwidth is far, synchronization between the near-point devices can be achieved by transmitting the synchronization signal and/or the broadcast signal through the first type of frame. Broadcasting can also synchronize and broadcast between remote devices.

In one possible design in this embodiment, the second type of frame may be used to transmit the synchronization signal and/or the broadcast signal, or may not be used to transmit the synchronization signal and/or the broadcast signal. When the second type of frame is used to transmit a synchronization signal and/or a broadcast signal, synchronization and broadcasting between near-point devices can be achieved, compared to synchronization signals and/or broadcasts transmitted by near-point users through the first type of frame. The signal is used for synchronization and broadcasting, and the synchronization signal and/or the broadcast signal transmitted by the near-point user through the second type of frame are synchronized, the synchronization consumed by the device during broadcasting, the broadcast time is short, and the power consumption of the device is small. When the second type of frame is not used to transmit the synchronization signal and/or the broadcast signal, the saved resources can be used to transmit other downlink data.

In the frame structure designed in this embodiment, the first type of frame can be implemented in the following two manners:

Method 1: A first type of frame based on an adaptive frequency hopping method.

The first type of frame based on the adaptive frequency hopping method includes a first portion, a second portion, and a third portion. The first part is used to determine whether to occupy the first bandwidth occupied by the first type of frame, and may perform an occupancy evaluation on the first bandwidth to determine whether to occupy the first bandwidth. For example, the LBT may be used to implement channel occupancy evaluation. If it is determined that the first bandwidth is not occupied, it is determined that the first bandwidth is occupied, and the first bandwidth cannot be occupied if the first bandwidth is already occupied by other devices. When it is determined by the first part that the first bandwidth is occupied, the second part is used to send downlink data in the first bandwidth, the third part is used to receive uplink data on the first bandwidth, and the first part is determined not to occupy the first bandwidth. When the device cannot send the downlink data through the second part, nor can the uplink data be received through the third part, until the end of the first type frame, the next frame of the first type frame can be communicated.

Taking the first type of frame in the LBT-based frequency hopping mode as an example, the frame structure of the first type of frame is as shown in FIG. 4A. Based on European regulations governing the use of unlicensed spectrum, the device can transmit up to 60 ms of data, and the frame duration of the first type of frame shown in Figure 4A can be designed to be 80 ms. In the first type of frame shown in FIG. 4A, the first part includes LBT+CCA to detect whether the channel is usable, and the second part includes transmitting a discovery reference signal (Discovery Reference Signal, DRS) including the synchronization signal, the broadcast signal, and the common channel information. The second part further includes downlink transmission (DownLink, DL), and the downlink transmission includes transmitting a downlink shared physical channel (Physical Downlink Shared Channel, PDSCH) and a physical downlink control channel (Physical Downlink Control Channel, PDCCH), and downlink transmission The duration is up to 60ms, and the third part includes uplink transmission (UpLink, UL). The transition interval in the first type of frame indicates downlink transmission. The transition interval between the input and the upstream transmission.

Manner 2: The first type of frame based on the non-adaptive frequency hopping mode.

The first type of frame based on the non-adaptive frequency hopping method includes a fourth portion and a fifth portion. The fourth part is for transmitting downlink data, and the fifth part is for receiving uplink data. Based on the European regulations on the use of unlicensed spectrum, the non-adaptive frequency hopping device must continue to transmit the next 5ms downlink data after every 5ms of downlink data transmission, and the device can send 15ms of downlink data on one channel. The first type of frame based on the non-adaptive frequency hopping mode provided by the second type may adopt a frame structure as shown in FIG. 4B, and the first type of frame adopts a manner of uplink and downlink interval transmission. For example, the base station communicates with the UE through the frame structure shown in FIG. 4B. After receiving 5 ms downlink data, the base station receives 5 ms uplink data sent by the UE, and the frame structure shown in FIG. 4B includes three times of this process, so that the base station accumulates. Send 15ms downlink data, at which time the frame duration of the first type of frame is 30ms. Optionally, the first type of the frame may also include a process of receiving 5 ms uplink data sent by the UE after the base station sends 5 ms downlink data to the UE.

In the frame structure designed in this embodiment, the second type of frame may be a second type of frame based on an adaptive non-hopping mode, and the second type of frame includes a sixth part, a seventh part, and an eighth part. The sixth part is used to determine whether to occupy the second bandwidth occupied by the second type of frame, and may perform occupancy evaluation on the second bandwidth to determine whether to occupy the second bandwidth. For example, the LBT may be used to perform channel occupancy evaluation. It is determined that the second bandwidth is occupied if it is determined that the second bandwidth is not occupied, and the second bandwidth cannot be occupied if the second bandwidth is already occupied by other devices. When it is determined by the sixth part that the second bandwidth is occupied, the seventh part is configured to send downlink data in the second bandwidth, the eighth part is used to receive uplink data on the second bandwidth, and the sixth part is used to determine that the second bandwidth is not occupied. In the case of the second bandwidth, the device cannot transmit the downlink data through the seventh part, nor can the uplink data be received through the eighth part, until the end of the second type frame, the next frame of the second type frame can be communicated.

The downlink data transmitted through the seventh portion in this embodiment may include a synchronization signal and/or a broadcast signal, or may not include a synchronization signal and/or a broadcast signal. Optionally, in the case that the downlink data sent through the seventh part includes the transmission synchronization signal and/or the broadcast signal, the synchronization signal and/or the broadcast signal are repeatedly transmitted in the time domain, such as a synchronization signal and/or a broadcast signal. Compensating for all downlink transmission opportunities, the scheme of repeatedly transmitting synchronization signals and/or broadcast signals can improve the coverage capability of the system to some extent, compared to the scheme of transmitting only one synchronization signal and/or broadcast signal. Optionally, in the case that the downlink data sent by the seventh part includes the transmission synchronization signal and/or the broadcast signal, the synchronization signal and/or the broadcast signal occupy a specified frequency point in the second bandwidth, because the synchronization signal is transmitted and/or Or the frequency of the broadcast signal is fixed, and the device receiving the synchronization signal and/or the broadcast signal knows the designated frequency point, and thus can directly receive the synchronization signal and/or the broadcast signal at the designated frequency point, thereby reducing the device synchronization time. And power consumption. Optionally, in the case that the downlink data sent by the seventh part includes sending the synchronization signal and/or the broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both the narrowband device and the broadband device can receive. To the synchronization signal and/or the broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be broadband, and the broadband device may receive the synchronization signal and/or the broadcast signal.

Taking the second type of frame based on the LBT-based non-frequency hopping method as an example, the frame structure of the second type of frame is as shown in FIG. 5. The frame duration of the second type of frame shown in FIG. 5 can be flexibly configured, and the configured frame duration of the second type of frame does not exceed the maximum frame duration of the non-hopping-based frame specified by the regulations, for example, the regulation is based on non-hopping. When the maximum frame duration of the frequency frame is 10 ms, the frame duration of the second type frame shown in FIG. 5 can be configured to be less than or equal to 10 ms. In the second type of frame shown in FIG. 5, the sixth part includes LBT+CCA to detect whether the channel is occupied. If the channel is determined to be unoccupied by LBT detection, the full bandwidth of the system can be occupied, and the system is full. The bandwidth is the second bandwidth, for example, the full bandwidth of the system is 20 MHz; the seventh part includes transmitting the synchronization signal, the broadcast signal, and the physical broadcast channel (Physical Broadcast Channel, Downlink transmission, such as PBCH), PDSCH, and PDCCH, the synchronization signal includes a Primary Synchronized Signal (PSS) and a Secondary Synchronized Signal (SSS), and the eighth part includes Uplink Transmission (UL). In FIG. 5, PSS, SSS, and PBCH are respectively transmitted through three channels in the second bandwidth, and PSS and SSS may also be transmitted through one channel, and PBCH may be transmitted through another channel, and other channels in the second bandwidth may be used to transmit PDCCH and/or PDSCH. For example, the base station performs communication with the UE by using the second type of frame in a non-frequency hopping manner. The uplink transmission start time in the second type of frame is scheduled by the base station, and the duration of the uplink transmission may also be configured by the base station; The second bandwidth is broadband, so the base station can communicate with multiple UEs, thereby increasing system capacity.

In conjunction with a frame structure provided by the foregoing embodiment, the embodiment of the present application further provides a communication method. As shown in FIG. 6, the communication method includes:

S601: The first device communicates with the second device by using the first type of frame on the first time unit according to the frequency hopping manner, where the first type of frame occupies the first bandwidth;

S602. The first device communicates with the third device by using the second type of frame on the second time unit according to the non-frequency hopping manner, and the second type of frame occupies the second bandwidth.

The first type frame and the second type frame in the communication method are respectively the first type frame and the second type frame in a frame structure provided by the present embodiment, for the first type frame and the second type frame. For related descriptions, refer to the related descriptions of the first type frame and the second type frame in a frame structure provided in this embodiment, and details are not described herein again.

In the communication method provided in this embodiment, the second device and the third device may be the same device or different devices. Based on the rule of the unlicensed spectrum, the coverage of the first type of frame occupying the first bandwidth is far, and the coverage of the second type of frame occupying the second bandwidth is relatively close. The first type of frame can communicate with its own far-end device or with its own near-point device. In this case, the second device can be either the far-end device of the first device or the near-point device of the first device. The first device can communicate with its own near-point device through the second type of frame, and the third device can be the near-point device of the first device.

In a possible design in this embodiment, the S601 may include: the first device sends a synchronization signal and/or a broadcast signal to the second device by using the first type of frame on the first time unit in a frequency hopping manner. Based on the regulations using the unlicensed spectrum, considering that the coverage of the first type of frame occupying the first bandwidth is far, the first device transmits the synchronization signal and/or the broadcast signal to the second device through the first type of frame, regardless of the The second device is a near-point device or a far-end device of the first device, and the second device can receive the first type of frame to implement synchronization and broadcast.

In a possible design in this embodiment, the first device in S602 may send the synchronization signal and/or the broadcast signal to the third device through the second type of frame, or may not pass the second type of frame direction, based on the non-frequency hopping manner. The third device transmits a synchronization signal and/or a broadcast signal. When the first device can send the synchronization signal and/or the broadcast signal to the third device through the second type of frame according to the non-frequency hopping manner, if the third device is the near-point device of the first device, the third device can receive the The second type of frame is used to implement synchronization and broadcast, and the third device receives the second type of frame sent by the first device to implement the synchronization and broadcast scheme by receiving the first type of frame sent by the first device. The synchronization and broadcast scheme consumes synchronization, the broadcast time is short, and the device consumes less power. When the first device does not send the synchronization signal and/or the broadcast signal to the third device through the second type of frame, the first device may send the saved resource to the third device to send other downlink data.

In this embodiment, the first device in S601 can communicate with the second device by using the first type frame of the adaptive frequency hopping method described above, in combination with the first type of the adaptive frequency hopping method. For the related description of the frame, the S601 may include: determining, by the first device, the first type of frame occupying the first type of frame by using the first part of the first type of frame a first bandwidth used by the first device, when the first bandwidth is occupied, the first device sends downlink data to the second device on the first bandwidth by using the second part of the first type of frame, where the first device passes the first The third portion of the type frame receives the uplink data sent by the second device on the first bandwidth. When it is determined that the first bandwidth is not occupied, the first device cannot send downlink data to the second device by using the second portion, and cannot receive uplink data sent by the second device by using the third portion until the end of the first type of frame The first device can communicate through the next frame of the first type of frame. The frame structure of the first type of frame based on the adaptive frequency hopping mode can be seen in FIG. 4A, and details are not described herein again.

In this embodiment, the first device in S601 may also use the non-adaptive frequency hopping based first type frame to communicate with the second device, in combination with the non-adaptive based frequency hopping method. For a related description of the first type of frame, the S601 may include: the first device sends downlink data to the second device by using the fourth part of the first type of frame, where the first device receives the fifth part by using the fifth part of the first type of frame The uplink data sent by the two devices. The frame structure of the first type of frame based on the non-adaptive frequency hopping mode can be seen in FIG. 4B, and details are not described herein again.

In this embodiment, the first device in S602 can communicate with the third device by using the second type frame of the adaptive non-frequency hopping method described above, in combination with the above-mentioned adaptive non-frequency hopping method. For the related description of the second type of frame, the S602 may include: determining, by the sixth part of the second type of frame, whether the second bandwidth occupied by the second type of frame is occupied by the first device; when determining to occupy the second bandwidth, the first device Transmitting, by the sixth part of the second type of frame, downlink data to the third device on the second bandwidth, where the first device sends the third device by using the seventh part of the second type of frame on the second bandwidth. Upstream data. When it is determined that the second bandwidth is not occupied, the first device cannot send the downlink data to the third device by using the seventh part, and cannot receive the uplink data sent by the third device by using the eighth part until the end of the second type of frame. The first device can communicate through the next frame of the second type of frame. The second type of frame based on the adaptive non-frequency hopping mode can be referred to 5, and details are not described herein again.

Optionally, in the foregoing S602, the downlink data that is sent by the first device to the third device by using the seventh part may include a synchronization signal and/or a broadcast signal, or may not include the synchronization signal and/or the broadcast signal. In the case that the downlink data sent by the first device to the third device through the seventh part includes the synchronization signal and/or the broadcast signal, optionally, the first device repeatedly transmits the synchronization signal and/or the broadcast signal in the time domain, The scheme of repeatedly transmitting the synchronization signal and/or the broadcast signal can improve the coverage capability of the system to some extent, compared to the scheme in which the first device transmits only one synchronization signal and/or broadcast signal. In the case that the downlink data sent by the first device to the third device through the seventh part includes the synchronization signal and/or the broadcast signal, optionally, the first device sends the synchronization signal and/or at a specified frequency point within the second bandwidth. Or a broadcast signal, since the frequency of transmitting the synchronization signal and/or the broadcast signal is fixed, the third device receiving the synchronization signal and/or the broadcast signal knows the designated frequency point, and thus can receive the synchronization directly at the designated frequency point. Signal and/or broadcast signals, which in turn reduce the consumption of synchronization time and power consumption of the third device. Optionally, in a case where the downlink data sent by the first device includes sending a synchronization signal and/or a broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrowband, so that the narrowband device and the broadband device The synchronization signal and/or the broadcast signal can be received, and the bandwidth occupied by the synchronization signal and/or the broadcast signal can be broadband, and the broadband device can receive the synchronization signal and/or the broadcast signal.

In the technical solution provided by the embodiment of the present application, the communication between the devices is implemented by the frame structure designed by the embodiment of the present application, and the existing regulations can be improved on the basis of the regulations for using the unlicensed spectrum for communication. The frequency hopping-based communication scheme has problems of long synchronization time, high power consumption, and limited system capacity, as well as problems of improving the system coverage of existing non-frequency hopping based communication schemes.

Based on the same inventive concept, the embodiment of the present application further provides a first device, where the first device can perform the communication method provided by the embodiment of the present application by using a frame structure provided by the embodiment of the present application. The device 700 includes a processing unit 701 and a transceiver unit 702. among them,

The processing unit 701 is configured to control the transceiver unit 702 to communicate with the second device by using the first type of frame on the first time unit according to the frequency hopping manner, where the first type of frame occupies the first bandwidth, and is further used to control the transceiver unit 702. The second time unit communicates with the third device by using the second type of frame according to the non-frequency hopping manner, and the second type of frame occupies the second bandwidth;

The transceiver unit 702 is configured to receive data and/or transmit data under the control of the processing unit 701.

In a possible implementation manner, when the control transceiver unit 702 communicates with the second device by using the first type of frame in a frequency hopping manner on the first time unit, the processing unit 701 is specifically configured to:

The control transceiver unit 702 transmits downlink data including the synchronization signal and/or the broadcast signal to the second device through the first type of frame on the first time unit in a frequency hopping manner.

When the first type of new frame is based on the adaptive frequency hopping mode, whether the first bandwidth is occupied by the first part of the first type of frame is determined; when the first bandwidth is occupied, the control transceiver unit 702 passes the second part of the first type of frame. Transmitting the downlink data to the second device, and the control transceiver unit 702 receives the uplink data sent by the second device by using the third part of the first type of frame;

When the first type of new frame is based on the non-adaptive frequency hopping mode, the control transceiver unit 702 sends downlink data to the second device through the fourth portion of the first type of frame, and the control transceiver unit 702 passes the fifth portion of the first type of frame. Receiving uplink data sent by the second device.

In a possible implementation manner, when the control transceiver unit 702 communicates with the third device by using the second type frame in the non-frequency hopping manner on the second time unit, the processing unit 701 is specifically configured to:

When the second type of frame is based on the adaptive non-frequency hopping mode, determining whether to occupy the second bandwidth by using the sixth part of the second type of frame;

When the second bandwidth is occupied, the control transceiver unit 702 transmits downlink data to the third device through the seventh portion of the second type frame, and the control transceiver unit 702 receives the uplink data sent by the third device by using the eighth portion of the second type frame.

Optionally, the downlink data sent by the seventh part includes a synchronization signal and/or a broadcast signal; or the downlink data sent by the seventh part does not include the synchronization signal and/or the broadcast signal.

Optionally, when the downlink data sent by the seventh part includes the synchronization signal and/or the broadcast signal, the synchronization signal and/or the broadcast signal are repeatedly transmitted in the time domain.

Optionally, when the downlink data sent by the seventh part includes the synchronization signal and/or the broadcast signal, the synchronization signal and/or the broadcast signal occupy a specified frequency point in the second bandwidth.

For the related description of the first device provided by the embodiment of the present application, reference may be made to the frame structure provided by the embodiment of the present application and the communication method provided by the embodiment of the present application, and details are not described herein again.

It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

An integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. Including a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform various embodiments of the present invention All or part of the steps of the method. 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. .

Based on the same inventive concept, the embodiment of the present invention further provides a first device, where the first device can perform the communication method provided by the embodiment of the present application by using the frame structure provided by the embodiment of the present application, which may be the same as that shown in FIG. The first device is the same device. Referring to FIG. 8, the first device 800 includes a processor 801, a transceiver 802, a bus 803, and a memory 804, where:

The processor 801 is configured to read a program in the memory 804 and perform the following process:

The processor 801 is configured to control the transceiver 802 to communicate with the second device by using the first type of frame on the first time unit according to the frequency hopping manner, where the first type of frame occupies the first bandwidth, and is further used to control the transceiver 802. The second time unit communicates with the third device by using the second type of frame according to the non-frequency hopping manner, and the second type of frame occupies the second bandwidth;

The transceiver 802 is configured to receive data and/or transmit data under the control of the processor 801.

In a possible implementation manner, when the control transceiver 802 communicates with the second device by using the first type of frame in a frequency hopping manner on the first time unit, the processor 801 is specifically configured to:

The control transceiver 802 transmits downlink data including the synchronization signal and/or the broadcast signal to the second device through the first type of frame on the first time unit in a frequency hopping manner.

When the first type of new frame is based on the adaptive frequency hopping mode, determining whether to occupy the first bandwidth by the first part of the first type of frame; controlling the transceiver 802 to pass the second part of the first type of frame when occupying the first bandwidth Sending downlink data to the second device, and controlling the transceiver 802 to receive the uplink data sent by the second device by using the third part of the first type of frame;

When the first type of new frame is based on the non-adaptive frequency hopping mode, the control transceiver 802 transmits downlink data to the second device through the fourth portion of the first type of frame, and controls the transceiver 802 to pass the fifth portion of the first type of frame. Receiving uplink data sent by the second device.

In a possible implementation manner, when the control transceiver 802 communicates with the third device by using the second type of frame on the second time unit, the processor 801 is specifically configured to:

When occupying the second bandwidth, the control transceiver 802 transmits downlink data to the third device through the seventh portion of the second type of frame, and the control transceiver 802 receives the uplink data sent by the third device through the eighth portion of the second type of frame.

The processor 801, the transceiver 802, and the memory 804 are connected to each other through a bus 803. The bus 803 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, and the like.

Here, in FIG. 8, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 801 and various circuits of memory represented by memory 804. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 802 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 801 is responsible for managing the bus architecture and general processing, and the memory 804 can store data used by the processor 801 in performing operations.

The processor 801 can be a central processing unit, an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD).

Also provided in this embodiment is a computer storage medium for storing computer software instructions for use in the first device described in the above embodiments, which includes a program designed to execute the above embodiments.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

A communication method, comprising:

The first device communicates with the second device by using the first type of frame on the first time unit according to the frequency hopping manner, where the first type of frame occupies the first bandwidth;

The first device communicates with the third device by using the second type of frame on the second time unit in a non-frequency hopping manner, and the second type of frame occupies the second bandwidth.
The method according to claim 1, wherein the first device communicates with the second device by using the first type of frame on the first time unit in a frequency hopping manner, including:

The first device transmits downlink data including a synchronization signal and/or a broadcast signal to the second device by using the first type of frame on the first time unit according to a frequency hopping manner.
The method of claim 1 or 2, wherein the first type of frame comprises a first portion, a second portion, and a third portion, the first portion being used by the first device to determine whether to occupy the first a bandwidth, the second part is used by the first device to send downlink data to the second device when occupying the first bandwidth, and the third part is used by the first device to occupy the first Receiving uplink data sent by the second device when a bandwidth is used; or

The first type of frame includes a fourth part and a fifth part, where the fourth part is used by the first device to send downlink data to the second device, and the fifth part is used by the first device to receive The uplink data sent by the second device.
The method according to any one of claims 1 to 3, wherein said second type of frame comprises a sixth portion, a seventh portion and an eighth portion, said sixth portion being used by said first device to determine whether Occupying the second bandwidth, the seventh part is used by the first device to send downlink data to the third device when occupying the second bandwidth, where the eighth part is used by the first device Receiving uplink data sent by the third device when occupying the second bandwidth.
The method according to claim 4, wherein the downlink data transmitted by the first device through the seventh portion comprises a synchronization signal and/or a broadcast signal; or the first device passes the seventh portion The transmitted downlink data does not include a synchronization signal and/or a broadcast signal.
The method according to claim 5, wherein when the downlink data transmitted by the first device through the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal are in time Repeatedly sent on the domain.
The method according to claim 5 or 6, wherein when the downlink data transmitted by the first device by the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy a specified frequency point within the second bandwidth.
A frame structure, wherein the frame structure includes a first type of frame and a second type of frame, where the first type of frame occupies a first time unit based on a frequency hopping manner, and the first type of frame occupies the first Bandwidth, the second type of frame occupies a second time unit based on a non-frequency hopping manner, and the second type of frame occupies a second bandwidth.
The frame structure according to claim 8, wherein the downlink data used by the first type of frame for transmission comprises a synchronization signal and/or a broadcast signal.
The frame structure according to claim 8 or 9, wherein the first type of frame comprises a first part, a second part, and a third part, the first part is for determining whether to occupy the first bandwidth, The second part is configured to send downlink data when occupying the first bandwidth, and the third part is configured to receive uplink data when occupying the first bandwidth; or

The first type of frame includes a fourth portion for transmitting downlink data and a fifth portion for receiving uplink data.
A frame structure according to any one of claims 8 to 10, wherein said second type of frame comprises a sixth portion, a seventh portion and an eighth portion, said sixth portion being for determining whether to occupy said first The second portion is configured to send downlink data, and the eighth portion is configured to receive uplink data when occupying the second bandwidth.
The frame structure according to claim 11, wherein the downlink data transmitted through the seventh portion comprises a synchronization signal and/or a broadcast signal; or the downlink data transmitted through the seventh portion does not include a synchronization signal and / or broadcast signal.
The frame structure according to claim 12, wherein when the downlink data transmitted through the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal are repeatedly transmitted in the time domain. .
The frame structure according to claim 12 or 13, wherein when the downlink data transmitted through the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy the second The specified frequency within the bandwidth.
A first device, comprising:

a processing unit, configured to control, by using a frequency hopping manner, the transceiver unit to communicate with the second device by using the first type of frame, where the first type of frame occupies the first bandwidth, and is further configured to control the transceiver unit Communicating with the third device by using the second type of frame on the second time unit in a non-frequency hopping manner, the second type of frame occupying the second bandwidth;

The transceiver unit is configured to receive data and/or transmit data under the control of the processing unit.
The first device according to claim 15, wherein the processing unit controls the transceiver unit to communicate with the second device through the first type of frame in a manner of frequency hopping on the first time unit, Used for:

Controlling, by the transceiver unit, downlink data including a synchronization signal and/or a broadcast signal to the second device by using the first type of frame on the first time unit according to a frequency hopping manner.
The first device according to claim 15 or 16, wherein the processing unit controls the transceiver unit to communicate with the second device through the first type of frame in a manner of frequency hopping on the first time unit. Specifically for:

Determining, by the first part of the first type of frame, whether to occupy the first bandwidth; controlling the transceiver unit to pass the second part of the first type of frame to the second device when occupying the first bandwidth Transmitting downlink data, and controlling the transceiver unit to receive uplink data sent by the second device by using a third part of the first type of frame; or

Controlling, by the transceiver unit, sending downlink data to the second device by using a fourth part of the first type of frame, and controlling the transceiver unit to receive, by using the fifth part of the first type of frame, the second device to send Upstream data.
The first device according to any one of claims 15 to 17, wherein the processing unit controls the transceiver unit to pass the second type frame and the third device based on the non-frequency hopping manner on the second time unit. When communicating, it is specifically used to:

Determining whether the second bandwidth is occupied by the sixth portion of the second type of frame;

When the second bandwidth is occupied, the transceiver unit is configured to send downlink data to the third device by using a seventh portion of the second type frame, and control the transceiver unit to pass the eighth frame of the second type frame. The uplink data sent by the third device is partially received.
The first device of claim 18, wherein the number of downlinks transmitted by the seventh portion The synchronization signal and/or the broadcast signal are included; or the downlink data transmitted through the seventh portion does not include the synchronization signal and/or the broadcast signal.
The first device according to claim 19, wherein said synchronization signal and/or broadcast signal are repeated in a time domain when downlink data transmitted through said seventh portion includes a synchronization signal and/or a broadcast signal send.
The first device according to claim 19 or 20, wherein when the downlink data transmitted by the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy the first The specified frequency point within the second bandwidth.