CN113891356B - Wireless communication data information transmission method and device - Google Patents

Abstract

The application discloses a wireless communication data information transmission method and equipment, comprising the following steps: and the first signal is used for bearing the first configuration information. The second signal is a transit incoming signal for backscatter communication by the base unit. And the first configuration information is used for indicating the position of a first resource and transmitting the second signal on the first resource. The application also comprises a device for applying the method. The application solves the problems of short transmission distance and low utilization of frequency spectrum resources of the existing method and equipment, and is particularly suitable for a mobile communication wireless transmission system.

Description

Wireless communication data information transmission method and device

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for transmitting wireless communication data information.

Background

Backscatter (backscatter) communication has been developed in recent years as a low power communication mode, and backscatter devices modulate data onto electromagnetic waves in the environment by adjusting their own antenna impedance. The backscattering device can dispense with a radio frequency device with high power consumption, and has the advantages of low power consumption, low cost, small volume and the like; and the power consumption can be further reduced by combining a wireless charging circuit, and even a battery is not installed. The deployment of current backscatter devices in actual mobile communication networks faces the following challenges: first, when the network node is far from the backscatter device, the backscatter device cannot demodulate the signaling from the network node; the incident signal of the second, back-scattering device occupies spectrum resources within the mobile communication network band, resulting in low utilization of system spectrum resources.

Disclosure of Invention

The application provides a wireless communication data information transmission method and equipment, which solve the problems of short transmission distance and low utilization of frequency spectrum resources of the existing method and equipment, and are particularly suitable for a mobile communication wireless transmission system.

In a first aspect, the present application provides a method for transmitting wireless communication data information, including the steps of: and the first signal is used for bearing the first configuration information. The second signal is an incident signal for backscatter communication by the base device. The first configuration information is used for indicating the position of a first resource, and the second signal is transmitted on the first resource.

Preferably, the first configuration information is sent by the network node to the relay node, and then sent by the relay node to the base device.

Preferably, the first resource comprises a first time resource and a first frequency resource, the first frequency resource being located over a spectrum guard interval of the mobile communication network.

Preferably, the third signal is a backscatter signal obtained by performing spectrum shifting based on the second signal and then modulating the basic device target information.

Preferably, the second configuration information is used for indicating the position of a second resource, and the third signal is transmitted on the second resource.

Preferably, when forwarding the first configuration information, a preamble signal is inserted into a forwarding signal carrying the first configuration information.

Preferably, when forwarding the first configuration information, the first configuration information includes identification information of the receiving device.

Preferably, the first configuration information is forwarded by means of switch modulation.

Further, the first frequency resource is set to be f _c +kxΔf, where f _c is a center frequency of an adjacent channel of the mobile communication network, Δf is a subcarrier spacing of the adjacent channel, k is a channel sequence number, and k= ±1, ±2, ±3, … ….

Further, third configuration information is used for indicating whether basic device target information carried by the third signal is resolved.

Further, the fourth signal is an uplink signal carrying data information in the mobile communication network, the third signal and the fourth signal share resources of the mobile communication network, and a symbol boundary of the third signal is aligned with a symbol boundary of the fourth signal.

Preferably, the third signal comprises a preamble signal.

Preferably, in the back-scattered signal obtained by modulation, one of ON-OFF, QAM, FSK, ON-OFF and FSK combination or QAM and FSK combination is used as the modulation mode.

Preferably, when forwarding the second configuration information, a preamble is inserted into a forwarding signal carrying the second configuration information.

Preferably, when forwarding the second configuration information, the second configuration information includes identification information of the receiving device.

Preferably, the second configuration information is forwarded by means of switch modulation.

Further, the first configuration information includes identification information of the receiving device in at least one of the following manners: carrying an identification number of the receiving device through the first configuration information; by setting said first configuration information to be broadcast or multicast information.

Further, when the third configuration information is forwarded, a preamble signal is inserted into a forwarding signal carrying the third configuration information.

Further, when forwarding the third configuration information, the third configuration information includes identification information of the receiving device.

Further, forwarding the third configuration information through switch modulation.

Further, energy harvesting is performed by the first signal, the second signal and/or the fourth signal.

The method according to any one embodiment of the first aspect of the present application, for a network device, includes the following steps: a first signal is transmitted.

Preferably, the method further comprises: a third signal is received.

The method according to any one embodiment of the first aspect of the present application is used for a relay terminal device, and includes the following steps: receiving the first signal, analyzing to obtain first configuration information, and forwarding the first configuration information to the base equipment; generating a second signal, and transmitting the second signal on a first resource indicated by the first configuration information.

Further, the method further comprises: and analyzing the first signal to obtain second configuration information, and forwarding the second configuration information to the base equipment.

Further, the method further comprises: and analyzing the first signal to obtain third configuration information, and forwarding the third configuration information to the base equipment.

The method according to any one embodiment of the first aspect of the present application is used for a base terminal device, and includes the following steps: receiving forwarded first configuration information; a second signal is received on a first resource indicated by the first configuration information.

Preferably, the method further comprises: receiving forwarded second configuration information; modulating the second signal by basic equipment target information to obtain a third signal; and transmitting a third signal on a second resource indicated by the second configuration information.

Preferably, the method further comprises: and receiving the forwarded third configuration information.

In a second aspect, the present application further proposes a wireless communication data information transmission network device, with the method according to any one of the first aspects of the present application, at least one module in the wireless communication data information transmission network device is configured to at least one of the following functions: for transmitting the first signal.

In a third aspect, the present application further provides a wireless communication data information transmission terminal device, with the method according to any one of the first aspects of the present application, at least one module in the wireless communication data information transmission terminal device is configured to at least one of the following functions: at least one module in the wireless communication data information transmission terminal equipment is used for at least one of the following functions: the first configuration information is used for receiving the first signal and analyzing to obtain the first configuration information; for forwarding the first configuration information; for generating a second signal; for transmitting the second signal on a first resource indicated by the first configuration information.

In a fourth aspect, the present application further provides a wireless communication control information transmission terminal device, with the method according to any one of the first aspects of the present application, at least one module in the wireless communication control information transmission terminal device is configured to at least one of the following functions: the method comprises the steps of receiving forwarded first configuration information; for receiving a second signal on a first resource indicated by the first configuration information.

The application also proposes a communication device comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of the embodiments of the first aspect of the application.

The application also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to an embodiment of any one of the first aspects of the application.

The application also provides a mobile communication system comprising at least one network device according to any embodiment of the application and/or at least one terminal device according to any embodiment of the application.

The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:

The invention provides a method for transmitting signaling and providing radio frequency signals to a back scattering device by using an auxiliary node, and designs an interaction flow among the auxiliary node, the back scattering device and a network node. By deploying the auxiliary nodes around the backscatter device, the network node may utilize the auxiliary nodes to send signaling to the backscatter device, enhancing the coverage capability of the network node. In addition, the invention proposes to set the radio frequency signal on the guard interval of the mobile communication network, the method does not occupy the uplink and downlink spectrum resources of the mobile network, and compared with the traditional scheme, the method can effectively improve the spectrum utilization rate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a diagram of an embodiment of the basic principles of backscatter communications;

FIG. 2 is a flow chart of an embodiment of the method of the present application;

fig. 3 is a first frequency resource allocation embodiment;

FIG. 4 is a flow chart of an embodiment of the method of the present application including a third signal transmission;

FIG. 5 is a flow chart of an embodiment of the method of the present application for a network device;

FIG. 6 is a flow chart of an embodiment of the method of the present application for a terminal device;

FIG. 7 is a schematic diagram of an embodiment of a network device;

FIG. 8 is a schematic diagram of an embodiment of a terminal device;

fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention;

Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a diagram of an embodiment of the basic principles of backscatter communications.

A backscatter communication system consists essentially of three parts: the system comprises a radio frequency signal source, a backscattering device and a receiver, wherein the radio frequency signal source and the receiver can be arranged on a unified device or can be arranged on different devices. The backscatter devices include backscatter tags and smart reflective surfaces (INTELLIGENT REFLECTING surfaces, IRS), and the like.

The backscatter device may be energized by a radio frequency signal provided by a radio frequency signal source, the incident signal shown in the figure. When a certain amount of energy is collected, the data is modulated by controlling the antenna impedance switch. The modulation method comprises the following steps: ON-OFF keying (ON-OFF keying), QAM (Quadrature Amplitude Modulation ), FSK (Frequency-shift keying), and ON-OFF in combination with FSK, QAM and FSK.

For example, when an ON-OFF modulation scheme is used, the tag adjusts the impedance of the antenna match to 50 ohms, the incident signal is absorbed, representing the transmitted information bit 0; the tag adjusts the antenna impedance to positive infinity and the incoming signal is bounced back representing the transmitted information bit 1. It should be noted that in order to remove interference from the radio frequency signal source with the backscatter signal, the tag may set the switching frequency of the antenna impedance to be greater than the data transmission rate, thereby shifting the backscatter signal to another frequency.

Although backscatter communications have advantages of low power consumption, low cost, etc., deployment in practical mobile communication networks faces many challenges such as short range of backscatter devices from communication, low wireless spectrum utilization, lack of reliable communication protocols, etc.

In particular, when the backscatter device is far from the network node, the backscatter device cannot demodulate the signaling from the network node due to the poor receiving capability of the backscatter device. The poor receiving capability of the backscatter device is limited by power consumption and volume, and the backscatter device can use only simple circuitry, so the receiving sensitivity is low. When the communication distance between the network node and the backscatter device is long, the signal reaching the backscatter device is very weak, so that the backscatter device cannot detect the signaling information sent by the network node.

Specifically, the incident signal of the backscatter device occupies spectrum resources within the mobile communication network band, resulting in low utilization of system spectrum resources. In existing backscatter communication systems, the incoming signal from the backscatter device, i.e., the signal transmitted by the signal source, occupies in-band resources of the system, resulting in a reduction in spectral resources of the system.

Fig. 2 is a flow chart of an embodiment of the method of the present application.

The application provides a wireless communication data information transmission method, which comprises the following steps 11-12:

step 11, a first signal, which is used for carrying the first configuration information, and a second signal, which is an incident signal used for the base equipment to perform backscatter communication.

In the present invention, the base device refers to a low power consumption device, for example, a backscatter device of a mobile communication network, and may also be other low power consumption devices, which are not particularly limited herein.

The backscattering device uses simple radio frequency circuits, has poor signal receiving and processing capabilities, and has low receiving sensitivity. When the communication distance between the network node and the backscatter device is long, the signal reaching the backscatter device is very weak, so that the backscatter device cannot detect the signaling information sent by the network node. To this end, auxiliary nodes may be deployed around the backscatter device, forwarding the signaling of the network node through the auxiliary node (first node or relay node), thereby enhancing the coverage of the backscatter device by the network node. Wherein the auxiliary node has the capability to communicate with the network node and is capable of receiving signaling from the network node.

It should be noted that, in the embodiment of the present invention, the wireless communication network includes a network node, a first node, and a second node. The network node may be a network device, such as a base station, the first node may be a relay device, and may be a terminal device, configured to parse signaling of the network node, and the second node may be a low power device, configured to perform bidirectional communication with the first node.

In step 11, the network node transmits a first signal carrying said first configuration information to the first node.

After receiving the first signal, the first node performs signal analysis to obtain the first configuration information.

It should be noted that, in the embodiment of the present invention, the network node sends the first configuration information through the first signal, and the network node may also directly send the first configuration information to the relay node, which is not limited herein.

Step 12, first configuration information, which is used to indicate the position of the first resource, and the second signal is transmitted on the first resource.

In step 12, the first node analyzes the first configuration information to obtain the first configuration information, and then directly forwards the first configuration information to the second node, or after signal processing means such as modulation and the like, sends a signal carrying the content of the first configuration information to the second node.

In step 12, when the first node sends a signal carrying the first configuration information to the second node, a preamble may be inserted into a forwarding signal carrying the first configuration information.

Inserting a preamble signal in the signal carrying the first configuration information to cause the second node to perform timing synchronization and/or frequency synchronization, timing offset compensation and/or frequency offset compensation.

The present application is not limited to the length and type of the preamble signal. Preferably, the preamble signal uses an ON-OFF signal, which enables the second node to quickly complete timing synchronization and maintain low power consumption characteristics.

In step 12, when the first node sends a signal carrying the first configuration information to the second node, the first configuration information includes identification information of the receiving device, and informs the receiving device of whether the first configuration information is sent to the receiving device.

There may be a plurality of second nodes in the backscatter communication network, i.e. there are a plurality of receiving devices that can receive the first configuration information sent by the first node, so the first node needs to inform the second node whether the configuration information is addressed to itself or not.

In step 12, the notification receiving device identifies whether the first configuration information is addressed to the receiving device in at least one of the following manners:

in the first mode, an identification number (ID) of the receiving device is carried by the first configuration information.

In the first mode, the first configuration information carries an identification number of the second node, and before the second node acquires the first configuration information, the second node has completed an access process with the network node, that is, the network node has acquired the ID of the second node. In this case, the first configuration information transmitted by the first node contains the ID of the second node. Thus, the second node recognizes whether the first configuration information is addressed to itself by the ID in the configuration information.

And in a second mode, the first configuration information is broadcast or multicast information.

In the second mode, the first node may not distinguish between the plurality of second nodes, but send configuration information to the second nodes by multicast or broadcast. At this time, the second node recognizes whether the first configuration information is addressed to itself by judging whether the first configuration information contains a broadcast or multicast request.

In step 12, the first node may preferably send said first configuration information to the second node by means of switch modulation.

The second node is a low power device and is difficult to use with complex receiving circuitry and therefore typically only receives simple signals. For this purpose, the first node may send the first configuration information to the second node by means of an ON-OFF modulation. For example, when the first node transmits information bit 1, the amplitude of the signal carrying the first configuration may be set to 0; when the first node transmits information bit 0, the amplitude of the signal carrying the first configuration information is set to be other than 0.

In step 12, the first resource comprises a first time resource and a first frequency resource, the first frequency resource being over a spectrum guard interval of the mobile communication network.

The first node transmits a second signal to the second node using the first resource. If the first frequency resource uses the frequency spectrum of the mobile communication network, the allocable resources of the mobile communication network are reduced, the transmission rate is lowered, and the frequency spectrum utilization rate is lowered. Accordingly, the first frequency resource may be allocated on a spectrum guard interval of the mobile communication network for transmitting the second signal.

In a mobile communication network, a spectrum guard interval needs to be added between adjacent channels to reduce signal interference between the adjacent channels. The mobile communication network does not transmit data over the spectrum guard interval. Typically, the spectrum guard interval is 1/4 of the channel bandwidth.

Compared with a traditional back-scattering communication system with auxiliary nodes, the embodiment of the invention has the advantages that the first node has the normal communication capability with the network node and can greatly increase the communication distance of the back-scattering communication system under the control of the network node. In addition, the interactive flow designed by the embodiment of the invention can be suitable for the mobile communication network.

Fig. 3 is a first frequency resource allocation embodiment.

The embodiment of the invention provides a first frequency resource allocation method which can improve the spectrum utilization efficiency.

In the embodiment of the present invention, the first configuration information is used to indicate a location of a first resource, where the first resource includes a first time resource and a first frequency resource, and the first frequency resource is located in a spectrum guard interval of the mobile communication network.

The embodiment of the invention divides the first frequency resource on the frequency spectrum guard interval, so that the first frequency resource does not occupy the frequency spectrum resources of the uplink and downlink channels of the mobile communication network, and compared with the traditional scheme, the frequency spectrum utilization rate of the system is improved. In addition, since the signal transmitted on the first resource is not modulated, it does not cause serious interference to the mobile communication network.

Fig. 3 illustrates one way of first frequency resource allocation, in which a mobile communication network performs uplink and downlink communications using different spectrum resources, respectively, the first spectrum resources being located at guard intervals of the uplink and downlink spectrum.

The first frequency resource is set to be f _c +kxΔf, where f _c is a center frequency of an adjacent channel of the mobile communication network, Δf is a subcarrier spacing of the adjacent channel, k is a channel sequence number, and k= ±1, ±2, ±3, … ….

The network node and its served mobile communication devices need to perform a Fast Fourier Transform (FFT) process on the received signal. The FFT uses a rectangular window and thus there is spectral leakage. When the first frequency resource and the adjacent channel spectrum resource are non-orthogonal, interference is caused to the relative channel spectrum resource. Therefore, the first frequency resource is set to be f _c +kxΔf in size so that the first frequency resource and the adjacent channel spectrum resource are orthogonal in the frequency domain to reduce interference of the first frequency resource to the adjacent channel.

Compared with the traditional relay, the first node in the embodiment of the invention needs to bear the signaling forwarding function from the network node to the second node, and the communication link between the first node and the second node is specially designed according to the second node, more importantly, the first node can send signals on a frequency spectrum protection interval in the mobile communication network so as to provide a radio frequency source for the second node.

Fig. 4 is a flow chart of an embodiment of the method of the present application including a third signal transmission.

The application provides a wireless communication data information transmission method, which comprises the following steps 101-106:

in the embodiment of the invention, the first node is an auxiliary node of the mobile communication network and is used for playing an auxiliary communication role between the network node and the second node. The second node is a low-power consumption device, the third node is other communication devices of the mobile communication network, and the third node is a non-low-power consumption device or a low-power consumption device and can normally communicate with the network node.

Step 101, receiving the first signal and generating a second signal.

In step 101, a first node receives a first signal sent by a network node, parses the first signal to obtain first configuration information, and forwards the first configuration information to a second node. The first node generates a second signal which is sent to the second node on a first resource indicated by the first configuration information.

It should be noted that the features of the first configuration information, the first signal, and the second signal are already described in the embodiment of fig. 2, which is not repeated here.

Step 102, receiving the first configuration information, receiving the second signal, and generating a third signal.

In step 102, the second node receives the first configuration information or a signal carrying the first configuration information sent by the first node, and the second node receives a second signal sent by the first node on a first resource indicated by the first configuration information.

In step 102, the second node may perform timing synchronization and/or frequency synchronization on the signal carrying the first configuration information.

In step 102, preferably, the second node acquires the first configuration information, and first identifies whether the first configuration information is sent to itself, where the identification manner may be at least one of the following, and the identification is performed according to a predetermined first configuration information identification manner.

Mode one: the first configuration information includes an identification number of the second node. In this case, the first configuration information contains the ID of the second node. Thus, the second node recognizes whether the first configuration information is addressed to itself by the ID in the configuration information.

Mode two: the first configuration information is broadcast or multicast information. In this case, the second node identifies whether the first configuration information is addressed to itself by judging whether the first configuration information contains a broadcast or multicast request of the network node.

In step 102, the third signal is a backscatter signal obtained by performing spectrum shifting based on the second signal and then performing low power consumption device target information modulation. The second node uses the second signal as a radio frequency signal, modulates own data to the second signal, and then sends a modulated third signal. Specifically, the second node uses the second signal as a radio frequency signal, and adjusts the antenna impedance to control the phase, and/or amplitude, and/or frequency modulation target information when the second signal is reflected, so as to form the third signal.

Preferably, the low power consumption device target information is modulated to the third signal by using one of ON-OFF, QAM, FSK, ON-OFF combined with FSK and QAM combined with FSK.

In step 102, optionally, the third signal comprises a preamble signal. The second node transmits a third signal, wherein the third signal comprises a preamble signal. The preamble signal is used for timing synchronization and frequency synchronization of the third signal by the network node, and prevents collision when a plurality of the first nodes transmit data.

The present application is not limited to the length and type of the preamble signal. Preferably, the preamble signal has excellent auto-correlation and cross-correlation properties to secure timing synchronization performance.

Step 103, forwarding the second configuration information.

In step 103, the first signal received by the first node includes second configuration information, and the first node forwards the second configuration information directly or indirectly to the second node. The second node receives a signal from the first node to send or carry the second configuration information.

In step 103, the network node may specify time-frequency resources for the second node to transmit the third signal to complete signal demodulation. For this purpose, the network node may send a first signal carrying second configuration information to the first node, which in turn forwards the second configuration information to the second node, the second configuration information being indicative of a location of a second resource, the second resource being used for transmitting the third signal, the second resource comprising a second time resource and a second frequency resource.

In step 103, when the first node transmits a signal carrying the second configuration information to the second node, a preamble may be inserted into the forwarding signal carrying the second configuration information.

In step 103, when the first node transmits a signal carrying the second configuration information to the second node, the receiving device may be notified to identify whether the second configuration information is addressed to the receiving device.

The notification receiving device identifies whether the second configuration information is sent to the receiving device in at least one of the following manners: carrying an identification number of the receiving device through the second configuration information; by setting the second configuration information to be broadcast or multicast information.

In step 103, when the first node transmits a signal carrying second configuration information to the second node, the second configuration information may be transmitted through switch modulation.

In step 103, the second node receives the second configuration information, and may calculate a frequency difference between the first frequency domain resource and the second frequency resource.

When the second node modulates the low-power consumption equipment target information onto the second signal, the second signal is frequency shifted by controlling the switching frequency of the antenna impedance, and when the second frequency resource is designated, the frequency shift is the frequency difference between the first frequency domain resource and the second frequency resource.

Step 104, receiving a third signal.

In step 104, the network node receives the third signal sent by the second node, and performs signal analysis on the third signal to obtain the low-power consumption device target information.

It should be noted that, the network node may receive the third signal on the second resource indicated by the second configuration information, and the network node may also receive the third signal on other resources, which is not limited herein.

Optionally, the network node receives a preamble of the third signal and performs timing synchronization and frequency synchronization on the received third signal.

Step 105, receiving the fourth signal.

In step 105, the fourth signal is an uplink signal carrying data information in the mobile communication network, the third signal and the fourth signal sharing resources of the mobile communication network.

Preferably, the symbol boundaries of the third signal are aligned with the symbol boundaries of the fourth signal. Since the third signal and the fourth signal share the resources of the mobile communication wireless network, when symbol boundaries of the third signal and the fourth signal are inconsistent, one spectrum sidelobe will cause interference to the other, so that the symbol boundaries of the third signal and the fourth signal need to be aligned as much as possible.

The boundary alignment means synchronization within a certain accuracy, and the synchronization error is not more than 1/4 symbol period.

And 106, forwarding the third configuration information.

In step 106, the first signal received by the first node includes third configuration information, and the first node directly or indirectly forwards the third configuration information to the second node. And the third configuration information is used for indicating whether the low-power-consumption equipment target information carried by the third signal is analyzed or not.

In step 106, the network node needs to feed back the demodulation result of the third signal to the second node, and the network node needs to send the demodulation result to the first node, and the first node sends the information to the second node.

In step 106, when the first node transmits a signal carrying the third configuration information to the second node, a preamble may be inserted into the forwarding signal carrying the third configuration information.

In step 106, when the first node transmits a signal carrying third configuration information to the second node, the receiving device may be notified to identify whether the third configuration information is addressed to the receiving device.

The notification receiving device identifies whether the third configuration information is sent to the receiving device in at least one of the following manners: carrying an identification number of the receiving device through the third configuration information; by setting the third configuration information to be broadcast or multicast information.

In step 106, when the first node transmits a signal carrying third configuration information to the second node, the third configuration information may be transmitted through switch modulation.

In step 106, after receiving the signal carrying the third configuration information sent by the first node, the second node may perform timing synchronization and/or frequency synchronization on the signal carrying the third configuration information.

In step 106, after receiving the signal carrying the third configuration information sent by the first node, the second node may identify a broadcast signal of the first node and send access information to the network node.

After the network node identifies the second node, the third configuration information can be sent to the second node, and data of the second node is collected. For this, the second node needs to complete the random access. In the access process, the first node provides a broadcast signal to the second node, and the second node sends access information to the network node according to the broadcast signal.

In the embodiment of the invention, the second node can optionally use the first signal, the second signal and the fourth signal for energy collection when not communicating.

When the second node does not communicate, the second node can charge the self electricity storage module through surrounding electromagnetic waves. The charging circuit has no strict requirement on the frequency range of the wireless signal, so the first signal, the second signal and the fourth signal can be used for energy collection.

Embodiments of the present invention consider how to enhance the communication performance of a backscatter device by adding a first node in a mobile communication network. In one aspect, after adding the first node, the network node forwards the signaling to the second node through the first node, and when the first node is disposed near the second node, the signaling can be reliably sent to the second node. In another aspect, the first node provides a radio frequency signal of the second node, the signal being at a spectrum guard interval of the mobile communication network. Compared with the traditional scheme, the method improves the utilization rate of the system spectrum.

Fig. 5 is a flow chart of an embodiment of the method of the present application for a network device.

The method according to any one of the embodiments of the first aspect of the present application, for a network device, includes the following steps 201 to 202:

step 201, a first signal is sent.

In step 201, the network device transmits a first signal to a terminal device at a first node.

Step 202, receiving a third signal.

In step 202, the network node receives a third signal sent by the second node, the first signal sent by the network device to the terminal device at the first node containing the second configuration information.

Fig. 6 is a flow chart of an embodiment of the method of the present application for a terminal device.

The method according to any one of the embodiments of the first aspect of the present application, for a terminal device (a terminal device at a first node), comprises the following steps 301 to 302:

Step 301, receiving the first signal, analyzing to obtain first configuration information, and forwarding the first configuration information to a base device.

In step 301, a terminal device at a first node receives a first signal sent by a network device, parses the first signal to obtain first configuration information, and directly or indirectly forwards the first configuration information to a terminal device at a second node.

Step 302, generating a second signal, and transmitting the second signal on the first resource indicated by the first configuration information.

In step 302, the terminal device at the first node transmits a second signal to the terminal device at the second node on the first resource.

Fig. 7 is a schematic diagram of an embodiment of a network device.

The embodiment of the application also provides a network device, and the network device is used for: a first signal is transmitted.

In order to implement the above technical solution, the network device 400 provided by the present application includes a network sending module 401, a network determining module 402, and a network receiving module 403.

The network sending module is used for sending the first signal.

The network determining module is used for determining low-power consumption equipment target information from the third signal.

The network receiving module is used for receiving the third signal and also used for receiving the fourth signal.

Specific methods for implementing the functions of the network sending module, the network determining module and the network receiving module are described in the embodiments of the methods of the present application, and are not described here again.

Fig. 8 is a schematic diagram of an embodiment of a terminal device.

The application also provides a terminal device, and the terminal device is used for: forwarding configuration information.

In order to implement the above technical solution, the terminal device 500 provided by the present application includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503.

The terminal receiving module is used for receiving the first signal.

The terminal determining module is used for analyzing and obtaining first configuration information according to the first signal; the method is also used for analyzing and obtaining second configuration information and/or third configuration information according to the first signal; and also for generating a second signal.

The terminal sending module is configured to directly or indirectly forward a first configuration signal, a second configuration signal, and/or a third configuration signal, and is further configured to send the second signal on a first resource indicated by the first configuration information.

Specific methods for implementing the functions of the terminal sending module, the terminal determining module and the terminal receiving module are described in the embodiments of the methods of the present application, and are not described herein.

The terminal device of the present application may refer to a mobile terminal device.

Fig. 9 is a schematic structural diagram of a network device according to another embodiment of the present application. As shown, the network device 600 includes a processor 601, a wireless interface 602, and a memory 603. Wherein the wireless interface may be a plurality of components, i.e. comprising a transmitter and a receiver, providing a means for communicating with various other apparatuses over a transmission medium. The wireless interface performs the communication function with the terminal device, and processes wireless signals through the receiving and transmitting device, and data carried by the signals are communicated with the memory or the processor through the internal bus structure. The memory 603 contains a computer program for executing any of the embodiments of the application, which computer program runs or changes on the processor 601. When the memory, processor, wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus, and a status signal bus, which are not described here again.

Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 comprises at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in terminal device 700 are coupled together by a bus system. Bus systems are used to enable connected communication between these components. The bus system includes a data bus, a power bus, a control bus, and a status signal bus.

The user interface 703 may include a display, keyboard, or pointing device, such as a mouse, trackball, touch pad, or touch screen, among others.

The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application programs include various application programs such as a media player, a browser, etc. for implementing various application services.

In an embodiment of the application, the memory 702 contains a computer program that executes any of the embodiments of the application, the computer program running or changing on the processor 701.

The memory 702 contains a computer readable storage medium, and the processor 701 reads the information in the memory 702 and performs the steps of the above method in combination with its hardware. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 701, implements the steps of the method embodiments as described in any of the embodiments above.

The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the method of the present application may be performed by integrated logic circuitry in hardware or by instructions in software in processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor.

It will be appreciated by those skilled in the art that 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. In one typical configuration, the device of the present application includes one or more processors (CPUs), an input/output user interface, a network interface, and memory.

Furthermore, the present invention 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 application thus also proposes a computer-readable medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any of the embodiments of the application. For example, the memory 603, 702 of the present application may include non-volatile memory in a computer-readable medium, random Access Memory (RAM) and/or non-volatile memory, etc., such as read-only memory (ROM) or flash RAM.

Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.

Based on the embodiments of fig. 7 to 10, the present application also proposes a mobile communication system comprising at least 1 embodiment of any one of the terminal devices of the present application and/or at least 1 embodiment of any one of the network devices of the present application.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In the present application, "first" and "second" are used to distinguish between a plurality of objects having the same name, and unless otherwise specified, there is no particular meaning.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (31)

1. A wireless communication data information transmission method is characterized in that,

The first signal is used for bearing first configuration information;

The second signal is an incident signal used for the base equipment to carry out back-scattering communication;

The first configuration information is used for indicating the position of a first resource, and the second signal is transmitted on the first resource; the first configuration information is sent to the relay node by the network node and then sent to the base equipment by the relay node;

the first resource comprises a first time resource and a first frequency resource, and the first frequency resource is positioned on a frequency spectrum protection interval of the mobile communication network;

The third signal is a back scattering signal obtained by modulating basic equipment target information after frequency spectrum movement is carried out on the basis of the second signal;

The fourth signal is an uplink signal carrying data information in the mobile communication network, the third signal and the fourth signal share resources of the mobile communication network, and a symbol boundary of the third signal is aligned with a symbol boundary of the fourth signal.

2. The wireless communication data information transmission method of claim 1, wherein a preamble is inserted in a forwarding signal carrying the first configuration information when forwarding the first configuration information.

3. The wireless communication data information transmission method of claim 1, wherein the first configuration information includes identification information of a receiving device when forwarding the first configuration information.

4. The wireless communication data information transmission method of claim 1, wherein the first configuration information is forwarded by switching modulation.

5. The wireless communication data information transmission method of claim 1, wherein the first frequency resource is set to a size of f _c +kxΔf, where f _c is a center frequency of an adjacent channel of the mobile communication network, Δf is a subcarrier spacing of the adjacent channel, k is a channel number, and k= ±1, ±2, ±3, … ….

6. The wireless communication data information transmission method of claim 1, wherein second configuration information is used to indicate a location of a second resource on which the third signal is transmitted.

7. The method of wireless communication data information transmission of claim 1, wherein the third signal comprises a preamble signal.

8. The method of claim 1, wherein in the back-scattered signal obtained by modulating the target information of the base unit, one of ON-OFF, QAM, FSK, ON-OFF and FSK combination and QAM and FSK combination is used as a modulation scheme.

9. The method of claim 1, wherein third configuration information is used to indicate whether basic device target information carried by the third signal is parsed.

10. The wireless communication data information transmission method of claim 3, wherein the first configuration information includes identification information of the receiving device in at least one of the following ways:

carrying an identification number of the receiving device through the first configuration information;

by setting said first configuration information to be broadcast or multicast information.

11. The method of claim 6, wherein a preamble is inserted into a forwarding signal carrying the second configuration information when forwarding the second configuration information.

12. The wireless communication data information transmission method of claim 6, wherein the second configuration information includes identification information of the receiving device when forwarding the second configuration information.

13. The wireless communication data information transmission method of claim 6, wherein the second configuration information is forwarded by switching modulation.

14. The method of wireless communication data information transmission according to claim 1, wherein energy harvesting is performed by the first signal, the second signal, and/or the fourth signal.

15. The wireless communication data information transmission method of claim 9, wherein a preamble is inserted in a forwarding signal carrying the third configuration information when forwarding the third configuration information.

16. The wireless communication data information transmission method of claim 9, wherein the third configuration information includes identification information of the receiving device when forwarding the third configuration information.

17. The wireless communication data information transmission method of claim 9, wherein the third configuration information is forwarded by switching modulation.

18. A method according to any one of claims 1-17, for a relay terminal device, comprising the steps of:

Receiving the first signal, analyzing to obtain first configuration information, and forwarding the first configuration information to the base equipment;

generating a second signal, and transmitting the second signal on a first resource indicated by the first configuration information.

19. The method as recited in claim 18, further comprising: and analyzing the first signal to obtain second configuration information, and forwarding the second configuration information to the base equipment.

20. The method as recited in claim 19, further comprising: and analyzing the first signal to obtain third configuration information, and forwarding the third configuration information to the base equipment.

21. A method according to any of claims 1-17, for a network device, comprising the steps of: a first signal is transmitted.

22. The method as recited in claim 21, further comprising: a third signal is received.

23. A method according to any of claims 1-17, for a base terminal, comprising the steps of:

Receiving forwarded first configuration information;

a second signal is received on a first resource indicated by the first configuration information.

24. The method as recited in claim 23, further comprising:

receiving forwarded second configuration information;

Modulating the second signal by basic equipment target information to obtain a third signal;

and transmitting a third signal on a second resource indicated by the second configuration information.

25. The method as recited in claim 24, further comprising: and receiving the forwarded third configuration information.

26. A wireless communication data information transmission network device for implementing the method of any one of claims 1 to 17, characterized in that at least one module of the wireless communication data information transmission network device is configured to at least one of the following functions: for transmitting the first signal.

27. A wireless communication data information transmission terminal device for implementing the method of any one of claims 1 to 17, characterized in that at least one module of the wireless communication data information transmission terminal device is configured to at least one of the following functions: the first configuration information is used for receiving the first signal and analyzing to obtain the first configuration information; for forwarding the first configuration information; for generating a second signal; for transmitting the second signal on a first resource indicated by the first configuration information.

28. A wireless communication data information transmission terminal device for implementing the method of any one of claims 1 to 17, characterized in that at least one module of the wireless communication data information transmission terminal device is configured to at least one of the following functions: the method comprises the steps of receiving forwarded first configuration information; for receiving a second signal on a first resource indicated by the first configuration information.

29. A communication device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to any one of claims 1 to 25.

30. A computer readable medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 25.

31. A mobile communication system comprising a wireless communication data information transmission network device according to claim 26, a wireless communication data information transmission terminal device according to claim 27 and/or a wireless communication data information transmission terminal device according to claim 28.