CN110463075B

CN110463075B - Communication method, frame structure and equipment

Info

Publication number: CN110463075B
Application number: CN201780088992.XA
Authority: CN
Inventors: 张武荣; 李振宇; 南杨; 李汉涛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-04-14
Filing date: 2017-04-14
Publication date: 2021-05-11
Anticipated expiration: 2037-04-14
Also published as: CN110463075A; WO2018188096A1

Abstract

A communication method, a frame structure and a device are used for realizing communication of a wireless communication device by using an unlicensed spectrum. The communication method comprises the following steps: the method comprises the steps that a first device communicates with a second device through a first type frame on a first time unit based on a frequency hopping mode, and the first type frame occupies a first bandwidth; and the first equipment communicates with the third equipment through a second type frame on a second time unit based on a non-frequency hopping mode, and the second type frame occupies a second bandwidth.

Description

Communication method, frame structure and equipment

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

The spectrum is the basis of wireless communication, and in order to ensure the fair use of the spectrum, when the wireless communication devices use the spectrum in different regions, the spectrum regulations of the corresponding regions must be complied with, and especially when the wireless communication devices use the unlicensed spectrum, the wireless communication devices need to comply with the specific regulation regulations. The unlicensed spectrum is effectively utilized, and the spectrum efficiency of wireless communication can be greatly improved.

At present, technical solutions for wireless communication devices to perform uplink and downlink communication using unlicensed spectrum are classified into two categories. One is a communication scheme based on frequency hopping, which means that frequency points are continuously switched in a frequency band during communication to improve frequency division gain, and wireless communication equipment occupies a narrow band for communication based on frequency hopping. Taking a communication scheme of a base station based on frequency hopping to communicate with User Equipment (UE) as an example, the communication scheme has the following main problems based on the regulation rule of using an unlicensed spectrum: a base station can only communicate with a single UE at a certain moment, which is equivalent to a single carrier system, so that the system capacity is limited; because the communication scheme is based on frequency hopping, the UE does not know the time and frequency point of the base station for sending the synchronization signal before synchronization, the UE can continuously try to receive the synchronization signal on one channel, and because the rule provides that the probability of using each channel by the base station is equal, if the UE misses one synchronization signal, the UE needs to wait for the base station to hop through all channels to receive the synchronization signal sent by the base station again, so the synchronization time of the UE is long, and the power consumption is high. Another type is a non-frequency hopping based communication scheme, which is used when a wireless communication device occupies a wide band for communication. Taking a communication scheme of a base station based on non-frequency hopping to communicate with a UE as an example, since a Power Spectral Density (PSD) of the base station is required to be limited within a certain value in a non-frequency hopping system, a transmission Power of the base station to transmit a common control signal is small, and a Maximum Coupling Loss (MCL) is low, there is a problem that a coverage of the non-frequency hopping system is limited.

In view of the foregoing, it is desirable to design a communication scheme in an unlicensed spectrum, which improves the above problems in the existing technical scheme in which a wireless communication device communicates using the unlicensed spectrum, while satisfying regulatory constraints regarding the use of the unlicensed spectrum.

Disclosure of Invention

The embodiment of the application provides a communication method, a frame structure and equipment, which are used for realizing that wireless communication equipment uses an unauthorized frequency spectrum for communication.

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

the method comprises the steps that a first device communicates with a second device through a first type frame on a first time unit based on a frequency hopping mode, and the first type frame occupies a first bandwidth;

and the first equipment communicates with third equipment through a second type frame on a second time unit based on a non-frequency hopping mode, and the second type frame occupies a second bandwidth.

At least one first type frame can be configured on the first time unit, and at least one second type frame can be configured on the second time unit. The first bandwidth is understood to be the bandwidth occupied by the frequency hopping device in one transmission/reception process, and is usually called narrowband, for example, the minimum bandwidth of the narrowband is 25 kHz. The frequency hopping refers to continuously switching frequency points in a frequency band in a communication process to improve frequency division gain, and the mode of the first type frame based on the frequency hopping refers to that when a plurality of first type frames are configured in a frame structure, any two adjacent first type frames in the arrangement sequence of the plurality of first type frames in the frame structure occupy different frequency points in a system bandwidth. The second bandwidth can be understood as the bandwidth occupied by the non-frequency hopping device in one transmission/reception process, and the bandwidth occupied by the non-frequency hopping device is generally called a 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 regulation and regulation of using the unlicensed spectrum, considering that the coverage area of the first type frame occupying the first bandwidth is far, and the coverage area of the second type frame occupying the second bandwidth is near, in the above method, the first device may communicate with its remote point device or its near point device through the first type frame, and at this time, the second device may be either the remote point device or the near point device of the first device. The first device may communicate with its own near point device through the second type frame, in which case the third device may be the near point device of the first device.

The method does not limit the number and the arrangement sequence of the first type frames and the second type frames, and the number and the arrangement sequence of the first type frames and the second type frames can be flexibly configured according to the service requirements. The method can realize that the wireless communication equipment uses the unlicensed spectrum for communication, and can improve the problems of long synchronization time, large power consumption and limited system capacity of the existing communication scheme based on frequency hopping and improve the problem of limited system coverage of the existing communication scheme based on the unlicensed spectrum on the basis of meeting the regulation and regulation of using the unlicensed spectrum for communication.

In one possible implementation manner, the first device communicates with the second device through a first type frame in a frequency hopping-based manner over a first time unit, including:

and the first equipment transmits downlink data comprising a synchronous signal and/or a broadcast signal to the second equipment through the first type frame on the basis of a frequency hopping mode in the first time unit.

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

In one possible implementation, the first type frame may be based on an adaptive frequency hopping scheme or a non-adaptive frequency hopping scheme. The self-adaptation refers to that channel occupation evaluation is carried out before equipment is transmitted, and then signals are transmitted when the channel occupation is determined through the channel occupation evaluation, the non-self-adaptation refers to that the channel occupation evaluation is not carried out before the equipment is transmitted, signals are directly transmitted, and the channel estimation technology is a common channel estimation technology after listening.

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

When the first type frame is based on a non-adaptive frequency hopping mode, the first type frame includes a fourth part and a fifth part, the fourth part is used for the first device to send downlink data to the second device, and the fifth part is used for 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 frame based on the frequency hopping mode, and the coverage range of the first type frame based on the frequency hopping is far.

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

In this way, the first device may communicate with the third device via the second type frame based on the non-frequency hopping manner.

Optionally, the downlink data sent by the first device through the seventh part may include a synchronization signal and/or a broadcast signal, or may not include a synchronization signal and/or a broadcast signal. When the second type frame is used for transmitting the synchronization signal and/or the broadcast signal, synchronization and broadcasting between near-point devices can be achieved, and compared with the case that synchronization and broadcasting are achieved through the synchronization signal and/or the broadcast signal transmitted through the first type frame between near-point users, synchronization and broadcasting time consumed when the devices are synchronized and broadcast through the synchronization signal and/or the broadcast signal transmitted through the second type frame between near-point users is short, and power consumption of the devices is low. When the second type frame is not used for transmitting the synchronization signal and/or the broadcast signal, the saved resources can be used for transmitting other downlink data.

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

Thus, the scheme of repeatedly transmitting the synchronization signal and/or the broadcast signal may improve the coverage of the system to some extent, compared to a scheme of transmitting only the synchronization signal and/or the broadcast signal once.

Optionally, when the downlink data sent 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 occupy a designated frequency point in the second bandwidth.

Because the frequency point for sending the synchronous signal and/or the broadcast signal is fixed, the third device for receiving the synchronous signal and/or the broadcast signal knows the appointed frequency point, and then can directly receive the synchronous signal and/or the broadcast signal on the appointed frequency point, thereby reducing the consumption of the synchronization, the broadcast time and the power consumption of the third device.

Optionally, when the downlink data transmitted by the seventh portion includes a transmission synchronization signal and/or a broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both the narrow band device and the broadband device may receive the synchronization signal and/or the broadcast signal, and the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a broadband, and at this time, the broadband device may receive the synchronization signal and/or the broadcast signal.

In a second aspect, an embodiment of the present application provides a frame structure, where the frame structure includes a first type frame and a second type frame, the first type frame occupies a first time unit based on a frequency hopping manner, the first 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 one possible implementation manner, the downlink data used for transmission by the first type frame includes a synchronization signal and/or a broadcast signal.

In a possible implementation manner, the first type frame includes a first portion, a second portion, and a third portion, where the first portion is used to determine whether to occupy the first bandwidth, the second portion is used to send downlink data when occupying the first bandwidth, and the third portion is used to receive uplink data when occupying the first bandwidth; alternatively, the first and second electrodes may be,

the first type frame includes a fourth portion and a fifth portion, the fourth portion is used for transmitting downlink data, and the fifth portion is used for receiving uplink data.

In a possible implementation manner, the second type 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, the seventh part is used to transmit downlink data, and the eighth part is used to receive uplink data when occupying the second bandwidth.

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

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

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 occupy a designated frequency point in the second bandwidth.

Optionally, in a case that the downlink data transmitted through the seventh portion includes a transmission synchronization signal and/or a broadcast signal, a bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both a narrow band device and a broadband device may receive the synchronization signal and/or the broadcast signal, and the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a broadband, and at this time, the broadband device may receive the synchronization signal and/or the broadcast signal.

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

the processing unit is used for controlling the transceiver unit to communicate with the second equipment through a first type frame on a first time unit based on a frequency hopping mode, and the first type frame occupies a first bandwidth; the transceiver unit is further configured to control the transceiver unit to communicate with a third device through a second type frame based on a non-frequency hopping mode in a second time unit, where the second type frame occupies a second bandwidth;

and the transceiving unit is used for receiving data and/or transmitting data under the control of the processing unit.

In a possible implementation manner, when controlling the transceiver to communicate with the second device through the first type frame in a frequency hopping manner in the first time unit, the processing unit is specifically configured to:

and controlling the transceiver unit to transmit downlink data including a synchronization signal and/or a broadcast signal to the second device through the first type frame based on a frequency hopping manner in the first time unit.

determining whether to occupy the first bandwidth through a first portion of the first type frame; when the first bandwidth is occupied, controlling the transceiver unit to send downlink data to the second device through the second part of the first type frame, and controlling the transceiver unit to receive uplink data sent by the second device through the third part of the first type frame; alternatively, the first and second electrodes may be,

and controlling the transceiver unit to transmit downlink data to the second device through the fourth part of the first type frame, and controlling the transceiver unit to receive uplink data transmitted by the second device through the fifth part of the first type frame.

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

determining whether to occupy the second bandwidth through a sixth portion of the second type frame;

and when the second bandwidth is occupied, controlling the transceiver unit to send downlink data to the third device through a seventh part of the second type frame, and controlling the transceiver unit to receive uplink data sent by the third device through an eighth part of the second type frame.

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

the processor is configured to read a program in the memory, and execute the method in any possible implementation manner of the first aspect and the first aspect;

the transceiver is used for receiving data and/or transmitting data under the control of the processor.

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

Drawings

FIG. 1 is a schematic diagram of LBT technology;

fig. 2 is a schematic diagram of a network architecture according to 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 in the embodiment of the present application;

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

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

FIG. 5 is a diagram illustrating a second type of frame according to an embodiment of the present application;

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

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

fig. 8 is a schematic structural diagram of another first device provided in an embodiment of the present application.

Detailed Description

Wireless communication is achieved between wireless communication devices using frequency spectrum, which can be roughly divided into two types, one type being Licensed (Licensed) spectrum and the other type being Unlicensed (Unlicensed) spectrum. The technical scheme provided by the embodiment of the application is suitable for a scene that the wireless communication equipment uses the frequency spectrum for communication, in particular to a scene that the wireless communication equipment uses the unauthorized frequency spectrum for communication, such as the unauthorized frequency spectrum of 2.4 GHz.

In order to ensure a fair use of spectrum, when a wireless communication device uses spectrum in different regions, the wireless communication device must comply with spectrum regulations of the corresponding region, and especially when the wireless communication device uses unlicensed spectrum, the wireless communication device must comply with specific regulation regulations. For example, in the European Telecommunications Standards Institute (ETSI), in the spectrum regulation ETSI EN 300328, devices using an unlicensed band of 2.4GHz are classified into a Wideband modulation (Wideband modulation) device and a Frequency hopping (Frequency hopping) device, and further refined into an Adaptive (Adaptive) device and a Non-Adaptive (Non-Adaptive) device. ETSI provides in spectrum regulations that different devices are subject to the following rules:

(1) the self-adaptive frequency hopping equipment based on LBT needs to meet the limits that the output power is less than 20dBm, the sending time is not more than 60ms and the like;

(2) based on the limitations that the non-adaptive frequency hopping device needs to satisfy the condition that the output power is less than 20dBm, the Medium Utilization (MU) rate is not more than 10%, the single transmission time is not more than 5ms, the accumulated transmission time is not more than 15ms, and the like, the MU is defined as:

MU＝(P/100mW)*DC

wherein, P is output power, DC is duty ratio, when P is 100mW, DC is 10%, MU is 10%;

(3) the LBT-based adaptive wideband modulation apparatus needs to meet the constraints that the Power Spectral Density (PSD) is less than 10dBm/MHz, the output Power is less than 20dBm, and the channel occupancy time is less than 10 ms.

The Federal Communications Commission (FCC) of the united states has relatively less restrictions on the use of the 2.4GHz spectrum than the european regulation on the use of the 2.4GHz spectrum, which is summarized in the following table:

watch 1

The frequency hopping refers to continuously switching frequency points in a frequency band during transmission so as to improve frequency division gain. The self-adaptation refers to that channel occupancy assessment such as Listen Before Talk (Listen Before Talk, LBT) is carried out Before equipment is transmitted, and signals are sent when the channel occupancy assessment determines that the channel can be occupied; non-adaptive means that the channel occupancy estimation is not performed before the device transmits, and the signal is directly transmitted. Before using an unlicensed spectrum for communication, an adaptive device needs to evaluate the usage of a channel, LBT is a commonly used channel evaluation technique, a schematic diagram of the LBT technique is shown in fig. 1, and a process of implementing channel evaluation by LBT includes: before data is sent, the device first performs Channel Clear Assessment (CCA), measures the energy condition on the current Channel, and if the measured energy exceeds a preset threshold, the Channel is considered to be occupied, and data cannot be sent at this time; otherwise, 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 at this time. Therefore, the time division multiplexing among the devices is realized to preempt the channel. Since multiple systems share the unlicensed frequency band, the LBT procedure can avoid signal interference among multiple systems.

Based on the above-mentioned regulation rule using unlicensed spectrum, currently designed technical schemes for wireless communication devices to communicate using unlicensed spectrum are divided into a communication scheme based on frequency hopping and a communication scheme based on non-frequency hopping, where the wireless communication device occupies a narrow band for communication based on frequency hopping, for example, the minimum bandwidth of the narrow band is 25kHz, and the wireless communication device occupies a wide band for communication based on non-frequency hopping, for example, the minimum bandwidth of the wide band is 500 kHz. As described in the background art, currently designed communication schemes based on frequency hopping have problems of long UE synchronization time, large power consumption and limited system capacity, and currently designed communication schemes based on non-frequency hopping have problems of 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 that a wireless communication device uses an unlicensed spectrum for communication. According to the technical scheme provided by the embodiment of the application, on the basis of meeting the regulation rule of using an unauthorized frequency spectrum, the problems of long synchronization time, high power consumption and limited system capacity of the existing communication scheme based on frequency hopping can be solved, and the problem of limited system coverage of the existing communication scheme based on non-frequency hopping is improved. The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

Fig. 2 shows a schematic diagram of a network architecture related in an embodiment of the present application, which relates to a first device, and a second device and/or a third device that communicate with the first device, where there may be one or more first devices, there may be one or more second devices connected to each first device, there may be one or more third devices connected to each first device, and the second device and the third device may be the same device or different devices. The first device is a network device, and may be a base station, an Access Point (AP), or a device in an Access network that communicates with a wireless terminal device through one or more sectors over an air interface. The network device may be configured to interconvert received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) network. The network device may also coordinate attribute management for the air interface. For example, the network device may be a Base Transceiver Station (BTS) in a Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), or an evolved Node B (eNB) in LTE, which is not limited in the embodiment of the present application.

The second device and the third device are wireless terminal devices and may refer to devices that provide voice and/or data connectivity to a user, handheld devices having wireless connection capability, or other processing devices connected to a wireless modem. Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers having mobile terminal devices, for example, portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless Terminal Device may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal Device (Remote Terminal), an Access Terminal Device (Access Terminal), a User Terminal Device (User Terminal), a User Agent (User Agent), a User Device (User Device), or a User Equipment (User Equipment), which is not limited in this embodiment.

It is to be understood that the terms "first," "second," and the like in the description of the present application are used for descriptive purposes only and not for purposes of indicating or implying relative importance, nor for purposes of indicating or implying order.

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

The embodiment of the application provides a frame structure, and the frame structure is designed by the embodiment of the application and is a frame structure combining frequency hopping and non-frequency hopping. The frame structure provided by the embodiment of the application comprises a first type frame and a second type frame, wherein the first type frame occupies a first time unit based on a frequency hopping mode, the first type frame occupies a first bandwidth, the second type frame occupies a second time unit based on a non-frequency hopping mode, and the second type frame occupies a second bandwidth.

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

In this embodiment, the frame duration of each first type frame and the frame duration of each second type frame are not limited, and the frame duration of each first type frame and the frame duration of each second type frame may be flexibly configured according to service requirements; the frame duration of the first type of frame should not exceed the maximum frame duration of the non-frequency-hopping based frame specified by the rule, and the frame duration of the second type of frame should not exceed the maximum frame duration of the non-frequency-hopping based frame specified by the rule, for example, when the maximum frame duration of the non-frequency-hopping based frame is 10ms specified by the rule, the frame duration of the second type of frame may be configured to be less than or equal to 10 ms. In this embodiment, whether or not there is a time interval between two adjacent frames and how much the time interval is set are not limited.

In the embodiment, the first type frame occupies a first bandwidth, which can be understood as a bandwidth occupied by the frequency hopping device in one transmission/reception process, and the bandwidth occupied by the frequency hopping device is generally called a narrowband, for example, the minimum bandwidth of the narrowband is 25 kHz. The frequency hopping means that frequency points are continuously switched in a frequency band in a communication process to improve frequency division gain, and the manner of the first type frame based on frequency hopping in this embodiment means that when a plurality of first type frames are configured in a frame structure, any two adjacent first type frames occupy different frequency points in a system bandwidth in the arrangement order of the plurality of first type frames in the frame structure. The second type of frame occupies a second bandwidth, which can be understood as the bandwidth occupied by the non-frequency hopping device in one transmission/reception process, and is usually called a wideband, for example, the minimum bandwidth of the wideband is 500 kHz. The second type of bandwidth may be a full bandwidth of the system, or may be a partial bandwidth of the full bandwidth of the system, for example, when the full bandwidth of the system is 20MHz, the second bandwidth may be less than or equal to 20 MHz. It should be noted that, along with the development of the technology, names of the first bandwidth and the second bandwidth and a value range of the bandwidths in this embodiment may be changed, and the first bandwidth and the second bandwidth in this embodiment may be distinguished by whether frequency hopping is required or not. Optionally, the first bandwidth is smaller than the second bandwidth.

In this embodiment, the number and the arrangement order of the first type frames and the second type frames configured in the frame structure are not limited, and the number and the arrangement order of the first type frames and the second type frames may be flexibly configured according to the service requirement. For example, in the time domain, a plurality of first type frames may be continuously configured to reconfigure the second type frames, a plurality of second type frames may be continuously configured to reconfigure the first type frames, or a preset number of first type frames and a preset number of second type frames may be alternately configured. Therefore, the frame structure provided by this embodiment may be in various configuration forms, and the following illustrates possible configuration forms of the frame structure provided by this embodiment.

For example, one: in the frame structure shown in fig. 3A, the horizontal direction is a time domain, the vertical direction is a frequency domain, the system bandwidth is 20MHz, the first type frames and the second type frames alternately appear, and no time interval exists between the adjacent first type frames and second type frames. In fig. 3A, the first type frames include a first type frame 1 and a first type frame 2.. the first type frame N, N is an integer not less than 1, when N is an integer not less than 2, the first type frame 1 to the first type frame N occupy a first time unit, any two adjacent first type frames in the first type frame 1 to the first type frame N occupy different frequency points in the full bandwidth of the system, which indicates that the first type frame is based on a scheme of frequency hopping, for example, the first type frame N-1 and the first type frame N occupy different frequency points in the full bandwidth of the system, and the frame duration of each first type frame can be flexibly configured. In fig. 3A, the second type frames include a second type frame 1 and a second type frame 2. In fig. 3A, N ═ M +1 may be used.

It should be noted that the first frame configured in the frame structure shown in fig. 3A is a first-type frame, and the first frame configured in the frame structure provided in this embodiment may also be a second-type frame, where M is equal to N +1, or N is equal to M.

The example is two: in the frame structure shown in fig. 3B, the horizontal direction is a time domain, the vertical direction is a frequency domain, the full bandwidth of the system is 20MHz, and no time interval exists between two adjacent frames. The order and number of the first type frame and the second type frame are shown in the frame structure of fig. 3B. In fig. 3B, a first type frame 1 to a first type frame P are continuously configured in a first time unit, where P is an integer not less than 2, and a second type frame 1 to a second type frame Q are continuously configured in a second time unit, where 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 frame and the frame duration of each second type frame can be flexibly configured, for example, the frame duration of each second type frame can be configured to be 10ms, and each second type frame occupies the full bandwidth of the system.

Based on the regulation and regulation of using the unlicensed spectrum, considering that the coverage area of the first type frame occupying the first bandwidth is far, and the coverage area of the second type frame occupying the second bandwidth is near, therefore, the communication between the far-point devices and the communication between the near-point devices can be realized through the first type frame, the first type frame sent by the opposite-end device can be received by one-end device between two-end devices which are the far-point devices or the near-point devices, the communication between the near-point devices can be realized through the second type frame, the second type frame sent by the opposite-end device can be received by one-end device between two-end devices which are the near-point devices, and the effect that the one-end device between the two-end devices which are the near-point devices cannot receive the second type frame sent by the opposite-end device or receive the second type frame sent by the opposite-end device is not good. For example, whether two devices are far-point devices or near-point devices can be distinguished by setting a distance threshold, for one device, a peer device whose physical distance from the device exceeds the distance threshold is referred to as a far-point device of the device, and a 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 can be set based on the coverage of the second type frame.

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

In one possible design of this embodiment, the second type of frame may or may not be used to transmit the synchronization signal and/or the broadcast signal. When the second type frame is used for transmitting the synchronization signal and/or the broadcast signal, synchronization and broadcasting between near-point devices can be achieved, and compared with the case that synchronization and broadcasting are achieved through the synchronization signal and/or the broadcast signal transmitted through the first type frame between near-point users, synchronization and broadcasting time consumed when the devices are synchronized and broadcast through the synchronization signal and/or the broadcast signal transmitted through the second type frame between the near-point users is short, and power consumption of the devices is low. When the second type frame is not used for transmitting the synchronization signal and/or the broadcast signal, the saved resources can be used for transmitting other downlink data.

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

the first method is as follows: a first type frame based on an adaptive frequency hopping pattern.

The first type frame based on the adaptive frequency hopping scheme includes a first portion, a second portion, and a third portion. The first portion is configured to determine whether to occupy a first bandwidth occupied by a first type frame, where the first bandwidth may be determined by performing occupancy assessment on the first bandwidth, for example, the occupancy assessment on a channel may be implemented by using LBT, where the first bandwidth is determined to be occupied if it is determined that the first bandwidth is unoccupied, and the first bandwidth cannot be occupied if the first bandwidth is already occupied by other devices. When the first part determines to occupy the first bandwidth, the second part is used for sending downlink data in the first bandwidth, and the third part is used for receiving uplink data in the first bandwidth; when the first part determines that the first bandwidth is not occupied, the device cannot transmit downlink data through the second part and cannot receive uplink data through the third part until the first type frame is finished, and can communicate through a next frame of the first type frame.

Taking the first type frame based on LBT frequency hopping method as an example, the frame structure of the first type frame is shown in fig. 4A. The frame duration of the first type frame shown in fig. 4A may be designed to be 80ms, based on european regulations that use unlicensed spectrum that devices may transmit up to 60ms of data. In the first type of frame shown in fig. 4A, the first part includes LBT + CCA to detect whether a Channel is occupied, the second part includes transmitting a Discovery Reference Signal (DRS) including a synchronization Signal, a broadcast Signal, and common Channel information, the second part further includes DownLink (DL) including transmitting a DownLink Shared Physical Channel (PDSCH) and a Physical DownLink Control Channel (PDCCH), the duration of the DownLink is up to 60ms, and the third part includes UpLink (UL), and a transition interval in the first type of frame represents a transition interval between the DownLink and the UpLink.

The second method comprises the following steps: a first type frame based on a non-adaptive frequency hopping pattern.

The first type frame based on the non-adaptive frequency hopping mode includes a fourth part and a fifth part. The fourth part is used for sending downlink data, and the fifth part is used for receiving uplink data. Based on the regulation of using unlicensed spectrum in europe, after sending 5ms downlink data, the non-adaptive frequency hopping device needs to have an interval of 5ms before continuing sending the next 5ms downlink data, and the device can cumulatively send 15ms downlink data on one channel, so that the first type frame based on the non-adaptive frequency hopping scheme provided in the second scheme may adopt a frame structure as shown in fig. 4B, and the first type frame adopts an uplink and downlink interval sending scheme. Taking the example that the base station communicates with the UE through the frame structure shown in fig. 4B, the base station receives 5ms uplink data sent by the UE after sending 5ms downlink data to the UE, the frame structure shown in fig. 4B includes three times of this process, so that the base station accumulatively sends 15ms downlink data, and at this time, the frame duration of the first type frame is 30 ms. Optionally, the first type frame may also include a process of sending, by the base station, 5ms downlink data to the UE and then receiving, by the base station, 5ms uplink data sent by the UE once or twice.

In the frame structure designed in this embodiment, the second type frame may be a second type frame based on an adaptive non-frequency hopping manner, and the second type frame includes a sixth part, a seventh part, and an eighth part. The sixth part is configured to determine whether to occupy a second bandwidth occupied by a second type of frame, where the second bandwidth may be determined by performing occupancy assessment on the second bandwidth, for example, the occupancy assessment on a channel may be implemented by using LBT, where the second bandwidth is determined to be occupied if it is determined that the second bandwidth is unoccupied, and the second bandwidth cannot be occupied if the second bandwidth is already occupied by other devices. When the sixth part determines to occupy the second bandwidth, the seventh part is used for sending downlink data in the second bandwidth, and the eighth part is used for receiving uplink data in the second bandwidth; when the sixth part determines that the second bandwidth is not occupied, the device cannot transmit downlink data through the seventh part and cannot receive uplink data through the eighth part until the second type frame is finished, and can communicate through a frame next to the second type frame.

In this embodiment, the downlink data transmitted through the seventh part may include a synchronization signal and/or a broadcast signal, or may not include a synchronization signal and/or a broadcast signal. Optionally, in a case that the downlink data transmitted through the seventh portion includes a transmission synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal is repeatedly transmitted in a time domain, for example, the synchronization signal and/or the broadcast signal occupies all downlink transmission opportunities, and compared with a scheme that only one-pass synchronization signal and/or broadcast signal is transmitted, the scheme that the synchronization signal and/or the broadcast signal is repeatedly transmitted may improve coverage capability of the system to some extent. Optionally, when the downlink data sent by the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy a designated frequency point within the second bandwidth, and since the frequency point for sending the synchronization signal and/or the broadcast signal is fixed, the device for receiving the synchronization signal and/or the broadcast signal knows the designated frequency point, and can further directly receive the synchronization signal and/or the broadcast signal at the designated frequency point, thereby reducing consumption of synchronization time and power consumption of the device. Optionally, in a case that the downlink data transmitted through the seventh portion includes a transmission synchronization signal and/or a broadcast signal, a bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both a narrow band device and a broadband device may receive the synchronization signal and/or the broadcast signal, and the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a broadband, and at this time, the broadband device may receive the synchronization signal and/or the broadcast signal.

Taking the second type frame based on LBT non-frequency hopping mode as an example, the frame structure of the second type frame is shown in fig. 5. The frame duration of the second type frame shown in fig. 5 can be flexibly configured, and the configured frame duration of the second type frame does not exceed the maximum frame duration of the non-frequency-hopping-based frame specified by a rule, for example, when the maximum frame duration of the non-frequency-hopping-based frame is 10ms specified by the rule, 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 frame shown in fig. 5, the sixth portion includes LBT + CCA to detect whether the channel is available, and if the channel is determined to be not available through LBT detection, the full bandwidth of the system may be occupied, where the full bandwidth of the system is the second bandwidth, for example, the full bandwidth of the system is 20 MHz; the seventh part includes transmitting downlink transmission including a synchronization Signal, a Broadcast Signal, a Physical Broadcast Channel (PBCH), a PDSCH, and a 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 transmitted through three channels in the second bandwidth, respectively, or PSS and SSS may be transmitted through one channel, PBCH may be transmitted through another channel, and other channels in the second bandwidth may be used for transmitting PDCCH and/or PDSCH. Taking the base station to communicate with the UE through the second type frame based on the non-frequency hopping manner as an example, the uplink transmission start time in the second type frame is scheduled by the base station for the UE, and the uplink transmission duration may also be configured by the base station; because the second bandwidth occupied by the second type frame is a broadband, the base station can communicate with a plurality of UEs, and the system capacity is further improved.

In combination with the frame structure provided by the embodiment, the embodiment of the present application further provides a communication method, as shown in fig. 6, where the communication method includes:

s601, the first equipment communicates with the second equipment through a first type frame on a first time unit based on a frequency hopping mode, and the first type frame occupies a first bandwidth;

and S602, the first device communicates with a third device through a second type frame on a second time unit based on a non-frequency hopping mode, and the second type frame occupies a second bandwidth.

The first type frame and the second type frame in the communication method are the first type frame and the second type frame in the frame structure provided in the embodiment, and for the description of the first type frame and the second type frame, reference may be made to the description of the first type frame and the second type frame in the frame structure provided in the embodiment, and details are not repeated here.

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 regulation and regulation of using the unlicensed spectrum, considering that the coverage area of the first type frame occupying the first bandwidth is far, and the coverage area of the second type frame occupying the second bandwidth is near, in this embodiment, the first device may communicate with its own far-point device or its own near-point device through the first type frame, and at this time, the second device may be either the far-point device of the first device or the near-point device of the first device. The first device may communicate with its own near point device through the second type frame, in which case the third device may be the near point device of the first device.

In one possible design of this embodiment, S601 may include: the first device transmits a synchronization signal and/or a broadcast signal to the second device through a first type frame on a first time unit based on a frequency hopping mode. Based on the regulation of using the unlicensed spectrum, considering that the coverage of the first type frame occupying the first bandwidth is relatively long, the first device transmits a synchronization signal and/or a broadcast signal to the second device through the first type frame, and the second device can receive the first type frame to realize synchronization and broadcast no matter whether the second device is a near-point device or a far-point device of the first device.

In a possible design of this embodiment, in S602, the first device may transmit the synchronization signal and/or the broadcast signal to the third device through the second type frame based on a non-frequency hopping manner, or may not transmit the synchronization signal and/or the broadcast signal to the third device through the second type frame. When the first device can transmit the synchronization signal and/or the broadcast signal to the third device through the second type frame based on a non-frequency hopping manner, if the third device is a near point device of the first device, the third device can receive the second type frame to realize synchronization and broadcast, and compared with a scheme that the third device realizes synchronization and broadcast by receiving the first type frame transmitted by the first device, the scheme that the third device receives the second type frame transmitted by the first device to realize synchronization and broadcast consumes shorter synchronization and broadcast time, and the power consumption of the device is smaller. When the first device does not transmit the synchronization signal and/or the broadcast signal to the third device through the second type frame, the first device may transmit the saved resources to the third device for other downlink data.

In this embodiment, the first device in S601 may use the first type frame based on the adaptive frequency hopping scheme described above to communicate with the second device, and in combination with the above description about the first type frame based on the adaptive frequency hopping scheme, S601 may include: the first device determines whether to occupy a first bandwidth occupied by the first type frame through a first part in the first type frame; when the first bandwidth is occupied, the first device sends downlink data to the second device on the first bandwidth through the second part in the first type frame, and the first device receives uplink data sent by the second device on the first bandwidth through the third part in the first type frame. When it is determined that the first bandwidth is not occupied, the first device cannot transmit downlink data to the second device through the second part, and cannot receive uplink data transmitted by the second device through the third part, until the first type frame is finished, the first device may perform communication through a frame next to the first type frame. The frame structure of the first type frame based on the adaptive frequency hopping mode can be seen in fig. 4A, and is not described herein again.

In this embodiment, the first device in S601 may also use the first type frame based on the non-adaptive frequency hopping scheme described above to communicate with the second device, and in combination with the above description about the first type frame based on the non-adaptive frequency hopping scheme, S601 may include: the first device sends downlink data to the second device through the fourth part in the first type frame, and receives uplink data sent by the second device through the fifth part in the first type frame. The frame structure of the first type frame based on the non-adaptive frequency hopping scheme can be seen in fig. 4B, and is not described herein again.

In this embodiment, the first device in S602 may communicate with the third device by using the second type frame based on the adaptive non-frequency hopping manner described above, and in combination with the above description about the second type frame based on the adaptive non-frequency hopping manner, S602 may include: the first device determines whether to occupy the second bandwidth occupied by the second type frame through a sixth part in the second type frame; when the second bandwidth is occupied, the first device sends downlink data to the third device on the second bandwidth through the sixth part in the second type frame, and the first device receives uplink data sent by the third device on the second bandwidth through the seventh part in the second type frame. When it is determined that the second bandwidth is not occupied, the first device cannot transmit downlink data to the third device through the seventh portion, and cannot receive uplink data transmitted by the third device through the eighth portion until the second type frame is ended, and the first device may perform communication through a frame next to the second type frame. For the second type frame based on the adaptive non-frequency hopping scheme, see fig. 5, which is not described herein again.

Optionally, in S602, the downlink data sent by the first device to the third device through the seventh portion 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 transmitted 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, and compared with a scheme in which the first device only transmits the synchronization signal and/or the broadcast signal once, the scheme of repeatedly transmitting the synchronization signal and/or the broadcast signal may improve the coverage capability of the system to some extent. Under the condition 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 the broadcast signal at the designated frequency point within the second bandwidth, and because the frequency point for sending the synchronization signal and/or the broadcast signal is fixed, the third device for receiving the synchronization signal and/or the broadcast signal knows the designated frequency point, and then can directly receive the synchronization signal and/or the broadcast signal at the designated frequency point, thereby reducing the consumption of the synchronization time and the power consumption of the third device. Optionally, when the downlink data transmitted by the seventh portion includes a transmission synchronization signal and/or a broadcast signal, the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a narrow band, so that both the narrow band device and the broadband device may receive the synchronization signal and/or the broadcast signal, and the bandwidth occupied by the synchronization signal and/or the broadcast signal may be a broadband, and at this time, the broadband device may receive the synchronization signal and/or the broadcast signal.

In the technical scheme provided by the embodiment of the application, the communication between the wireless communication devices is realized through the frame structure designed by the embodiment of the application, and on the basis of meeting the regulation and regulation of using an unauthorized frequency spectrum for communication, the problems of long synchronization time, large power consumption and limited system capacity of the existing communication scheme based on frequency hopping can be improved, and the problem of limited system coverage of the existing communication scheme based on non-frequency hopping is improved.

Based on the same inventive concept, an embodiment of the present application further provides a first device, where the first device may perform the communication method provided in the embodiment of the present application by using the frame structure provided in the embodiment of the present application, and referring to fig. 7, the first device 700 includes: a processing unit 701 and a transceiving unit 702. Wherein the content of the first and second substances,

a processing unit 701, configured to control the transceiver unit 702 to communicate with a second device through a first type frame in a first time unit based on a frequency hopping manner, where the first type frame occupies a first bandwidth; the transceiver unit 702 is further configured to control the transceiver unit 702 to communicate with a third device through a second type frame based on a non-frequency hopping manner in a second time unit, where the second type frame occupies a second bandwidth;

a transceiving unit 702 for receiving data and/or transmitting data under the control of the processing unit 701.

In a possible implementation manner, when controlling the transceiver 702 to communicate with the second device through the first type frame based on a frequency hopping manner in the first time unit, the processing unit 701 is specifically configured to:

the transceiving unit 702 is controlled to transmit downlink data including a synchronization signal and/or a broadcast signal to the second device through the first type frame based on a frequency hopping manner in the first time unit.

when the first type frame is based on a self-adaptive frequency hopping mode, whether a first bandwidth is occupied or not is determined through a first part of the first type frame; when the first bandwidth is occupied, the transceiver unit 702 is controlled to transmit downlink data to the second device through the second part of the first type frame, and the transceiver unit 702 is controlled to receive uplink data transmitted by the second device through the third part of the first type frame;

when the first type of new frame is based on the non-adaptive frequency hopping mode, the transceiver unit 702 is controlled to transmit downlink data to the second device through the fourth part of the first type of frame, and the transceiver unit 702 is controlled to receive uplink data transmitted by the second device through the fifth part of the first type of frame.

In a possible implementation manner, when controlling the transceiver 702 to communicate with the third device through the second type frame based on a non-frequency hopping manner in the second time unit, the processing unit 701 is specifically configured to:

when the second type frame is based on a self-adaptive non-frequency hopping mode, whether the second bandwidth is occupied or not is determined through a sixth part of the second type frame;

when the second bandwidth is occupied, the transceiver unit 702 is controlled to transmit downlink data to the third device through the seventh part of the second type frame, and the transceiver unit 702 is controlled to receive uplink data transmitted by the third device through the eighth part of the second type frame.

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

Optionally, when the downlink data transmitted 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 a time domain.

Optionally, when the downlink data sent by the seventh portion includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal occupy a designated frequency point within the second bandwidth.

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

It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Based on the same inventive concept, an embodiment of the present invention further provides a first device, where the first device may perform the communication method provided in the embodiment of the present application by using the frame structure provided in the embodiment of the present application, and may be the same device as the first device shown in fig. 7. Referring to fig. 8, the first apparatus 800 includes: a processor 801, a transceiver 802, a bus 803, and a memory 804, wherein:

the processor 801 is used for reading the program in the memory 804 and executing the following processes:

a processor 801, configured to control the transceiver 802 to communicate with a second device through a first type frame in a first time unit based on a frequency hopping manner, where the first type frame occupies a first bandwidth; the transceiver 802 is further configured to control the transceiver to communicate with a third device through a second type of frame based on a non-frequency hopping manner in a second time unit, where the second type of frame occupies a second bandwidth;

a transceiver 802 for receiving data and/or transmitting data under the control of the processor 801.

In one possible implementation, when the processor 801 is configured to control the transceiver 802 to communicate with the second device through the first type frame in a frequency hopping based manner in the first time unit, specifically:

the transceiver 802 is controlled to transmit downlink data including a synchronization signal and/or a broadcast signal to the second device through the first type frame in a frequency hopping manner over the first time unit.

when the first type frame is based on a self-adaptive frequency hopping mode, whether a first bandwidth is occupied or not is determined through a first part of the first type frame; when occupying the first bandwidth, the transceiver 802 is controlled to transmit downlink data to the second device through the second part of the first type frame, and the transceiver 802 is controlled to receive uplink data transmitted by the second device through the third part of the first type frame;

when the first type of new frame is based on a non-adaptive frequency hopping mode, the transceiver 802 is controlled to transmit downlink data to the second device through the fourth part of the first type of frame, and the transceiver 802 is controlled to receive uplink data transmitted by the second device through the fifth part of the first type of frame.

In one possible implementation, the processor 801, when controlling the transceiver 802 to communicate with the third device through the second type frame based on the non-frequency hopping manner in the second time unit, is specifically configured to:

when the second bandwidth is occupied, the transceiver 802 is controlled to transmit downlink data to the third device through the seventh part of the second type frame, and the transceiver 802 is controlled to receive uplink data transmitted by the third device through the eighth part of the second type frame.

The processor 801, the transceiver 802, and the memory 804 are interconnected by a bus 803; the bus 803 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.

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

The processor 801 may be a central processing unit, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

The present embodiment also provides a computer storage medium for storing computer software instructions for the first device according to the above embodiment, which includes a program designed to execute the above embodiment.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may 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, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the embodiments of the present application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method of communication, comprising:

2. The method of claim 1, wherein the first device communicates with the second device over the first type of frame based on frequency hopping over the first time unit, comprising:

3. The method of claim 1 or 2, wherein the first type frame comprises a first portion, a second portion and a third portion, the first portion is used for the first device to determine whether to occupy the first bandwidth, the second portion is used for the first device to send downlink data to the second device when occupying the first bandwidth, and the third portion is used for the first device to receive uplink data sent by the second device when occupying the first bandwidth; alternatively, the first and second electrodes may be,

the first type frame includes a fourth portion and a fifth portion, the fourth portion is used for the first device to send downlink data to the second device, and the fifth portion is used for the first device to receive uplink data sent by the second device.

4. The method of claim 1 or 2, wherein the second type frame comprises a sixth portion, a seventh portion and an eighth portion, the sixth portion is used for the first device to determine whether to occupy the second bandwidth, the seventh portion is used for the first device to send downlink data to the third device when occupying the second bandwidth, and the eighth portion is used for the first device to receive uplink data sent by the third device when occupying the second bandwidth.

5. The method of claim 4, wherein the downlink data transmitted by the first device through the seventh part includes a synchronization signal and/or a broadcast signal; or, the downlink data transmitted by the first device through the seventh part does not include a synchronization signal and/or a broadcast signal.

6. The method of 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 is repeatedly transmitted in a time domain.

7. The method according to claim 5 or 6, 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 occupy a designated frequency point within the second bandwidth.

8. A frame structure is characterized in that the frame structure comprises a first type frame and a second type frame, the first type frame occupies a first time unit based on a frequency hopping mode, the first type frame occupies a first bandwidth, the second type frame occupies a second time unit based on a non-frequency hopping mode, and the second type frame occupies a second bandwidth.

9. The frame structure according to claim 8, wherein the downlink data for transmission of the first type frame comprises a synchronization signal and/or a broadcast signal.

10. The frame structure of claim 8 or 9, wherein the first type frame comprises a first portion for determining whether to occupy the first bandwidth, a second portion for transmitting downlink data while occupying the first bandwidth, and a third portion for receiving uplink data while occupying the first bandwidth; alternatively, the first and second electrodes may be,

11. The frame structure of claim 8 or 9, wherein the second type frame comprises a sixth portion for determining whether to occupy the second bandwidth, a seventh portion for transmitting downstream data, and an eighth portion for receiving upstream data while occupying the second bandwidth.

12. The frame structure according to claim 11, wherein the downlink data transmitted through the seventh part includes a synchronization signal and/or a broadcast signal; or, the downlink data transmitted through the seventh part does not include a synchronization signal and/or a broadcast signal.

13. The frame structure of claim 12, wherein when the downlink data transmitted through the seventh part includes a synchronization signal and/or a broadcast signal, the synchronization signal and/or the broadcast signal is repeatedly transmitted in a time domain.

14. 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 a designated frequency point within the second bandwidth.

15. A first device, comprising:

16. The first device of claim 15, wherein the processing unit, when controlling the transceiver unit to communicate with the second device through the first type frame based on the frequency hopping in the first time unit, is specifically configured to:

17. The first device according to claim 15 or 16, wherein the processing unit, when controlling the transceiver unit to communicate with the second device through the first type frame based on the frequency hopping in the first time unit, is specifically configured to:

18. The first device according to claim 15 or 16, wherein the processing unit, when controlling the transceiver unit to communicate with a third device through a second type frame based on a non-frequency hopping manner over a second time unit, is specifically configured to:

19. The first device of claim 18, wherein the downlink data transmitted through the seventh portion includes a synchronization signal and/or a broadcast signal; or, the downlink data transmitted through the seventh part does not include a synchronization signal and/or a broadcast signal.

20. The first device of claim 19, 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 is repeatedly transmitted in a time domain.

21. The first device according to claim 19 or 20, 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 a designated frequency point within the second bandwidth.