Communication device, communication system and radio frequency identification method

Abstract

The invention discloses a communication device and system and a radio frequency identification method, the communication device is configured with first frequency band information and second frequency band information, the first frequency band information is used for indicating a first frequency range used by an RFID unit to send information to a first excitation end, and the second frequency band information is used for indicating a second frequency range used by the RFID unit to send information to a second excitation end. The second frequency band information is used for indicating a second frequency range used by the first excitation end to send information to the label, and the first frequency range belongs to a frequency range supported by a PLMN and / or a frequency range supported by WIFI. The communication device sends a downlink signal to a first excitation end in a first frequency range, and receives a feedback signal from the first excitation end in a second frequency range; or the communication device receives the reflected signal of the tag in the second frequency range. As the first frequency range is larger than the frequency range supported by the RFID system, the communication device can schedule more excitation ends at the same time, so that the networking scale is larger, and the operation of a label at a long distance can be met.

Description

Technical Field

[0001] The present application relates to the field of radio frequency identification (RFID) technology, and in particular to a communication device, system and radio frequency identification method. Background Art

[0002] RFID technology can achieve non-contact two-way data communication through wireless radio frequency, thereby achieving automatic identification. A radio frequency identification system with separate transmission and reception includes a receiver, an excitation end (helper) and a tag. The receiver is responsible for receiving and demodulating the reflected signal sent by the tag, as well as managing and controlling the excitation end. The excitation end is controlled by the receiver and sends an excitation signal to the tag, so that the tag receives the excitation signal and can send a reflected signal to the receiving unit.

[0003] However, the available frequency band range of the RFID system with separate transmitter and receiver is limited, resulting in a relatively small number of excitation ends that can be scheduled by a receiving end at the same time. The network scale is limited and cannot meet the operation of tags at longer distances. Summary of the invention

[0004] The embodiments of the present application provide a communication device, a system and a radio frequency identification method, which can satisfy the operation of tags at a longer distance while reducing interference.

[0005] In order to achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0006] In a first aspect, an embodiment of the present application provides a first communication device, which has the function of a receiving unit in a radio frequency system and part or all of the functions of an access network device. The first communication device may be an access network device or a unit, functional module or circuit inside the access network device, and the first communication device has the function of a receiving unit in a radio frequency system. For example, the first communication device may be a network device with an integrated RFID unit.

[0007] The first communication device may include a processor and an RFID unit. The processor may be used to configure first frequency band information and second frequency band information, wherein the first frequency band information is used to indicate a first frequency range used by the RFID unit to send information to the first excitation end, and the second frequency band information is used to indicate a second frequency range used by the first excitation end to send information to the tag. The RFID unit is used to send a downlink signal to the first excitation end within a first frequency range, and receive a feedback signal from the first excitation end within a second frequency range; or receive a reflected signal from the tag within the second frequency range. The first frequency range belongs to a frequency range supported by a public land mobile network (PLMN) and / or a frequency range supported by wireless fidelity (WIFI).

[0008] The first frequency range may be a frequency range larger than the frequency range supported by the RFID system. For example, the first frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI. In the embodiment of the present application, the frequency range configured by the first communication device for the RFID unit belongs to the first frequency range, so that more excitation terminals can be scheduled at the same time, making the network scale larger and satisfying the operation of tags at a longer distance.

[0009] In a possible implementation, the second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

[0010] The second frequency range may be a frequency range supported by the RFID system, and the first communication device may be deployed in a frequency range that only supports the RFID system, and is compatible with the established network. Alternatively, the second frequency range may also belong to a frequency range supported by the PLMN and / or a frequency range supported by WIFI, so as to be applicable to tags that support a larger frequency range and have a wider range of applicable scenarios. Of course, the second frequency range may belong to one or more of a frequency range supported by the RFID system, a frequency range supported by the PLMN, or a frequency range supported by WIFI.

[0011] In a possible implementation, the first communication device further includes a transceiver, which is used to broadcast a request message and receive capability information sent by the first excitation terminal. The request message is used to request at least one excitation terminal to report the supported frequency range respectively, and the first excitation terminal belongs to at least one excitation terminal that receives the request message. The capability information is used to indicate the frequency range supported by the first excitation terminal. When configuring the second frequency band information, the processor can configure the second frequency range according to the capability information of the first excitation terminal.

[0012] Different excitation terminals may support different frequency ranges, some of which support a large frequency range, while others support a small frequency range. Therefore, in an embodiment of the present application, the first communication device may obtain the frequency range supported by the first excitation terminal, thereby configuring an adapted second frequency range for the first excitation terminal to avoid the frequency range configured for the first excitation terminal being unusable.

[0013] In a possible implementation, the time domain resources corresponding to the time-frequency resources in the first frequency range do not overlap with the time domain resources corresponding to the time-frequency resources in the second frequency range, so as to reduce interference.

[0014] In a possible implementation, the reflection signal carries the result of the operation performed by the RFID unit on the tag, or the reflection signal carries data information of the interaction between the tag and the RFID unit.

[0015] In a possible implementation, the first frequency range includes 450 MHz-6.0 GHz and / or 24.25 GHz-52.6 GHz.

[0016] In a second aspect, an embodiment of the present application provides a second communication device, which has the function of an excitation end in a radio frequency system and part or all of the functions of a terminal device. For example, the second communication device may be an excitation end integrating part or all of the functions of a terminal device, or the second communication device may also be a terminal device integrating all the functions of an excitation end.

[0017] The second communication device includes a transceiver and an excitation unit. The transceiver can be used to receive first frequency band information and second frequency band information configured by the access network device. The first frequency band information is used to indicate a first frequency range used by the access network device to send information to the second communication device, and the second frequency band information is used to indicate a second frequency range used by the second communication device to send information, and the first frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI. The excitation unit can be used to receive a downlink signal sent by the access network device within the first frequency range, and send a feedback signal to the access network device within the second frequency range, or send an excitation signal to the tag within the second frequency range, so that the tag sends a reflected signal to the access network device within the second frequency range.

[0018] In a possible implementation, the excitation unit is further used to: receive a request message sent by the access network device, and send capability information to the access network device. The request message is used to request reporting of a frequency range supported by the excitation unit. The capability information is used to indicate the frequency range supported by the excitation unit, so that the access network device configures a suitable second frequency range for the excitation unit according to the frequency range supported by the excitation unit.

[0019] In a possible implementation, the second frequency range belongs to a frequency range supported by RFID, or the second frequency range belongs to a frequency range supported by PLMN and / or a frequency range supported by WIFI.

[0020] The beneficial effects of the above-mentioned second aspect and its implementation method can refer to the description of the beneficial effects of the first aspect and its implementation method.

[0021] In a third aspect, a communication system is provided, comprising a first communication device as in the first aspect or any possible implementation of the first aspect, a second communication device as in the second aspect or any possible implementation of the second aspect, and a tag.

[0022] In a fourth aspect, a radio frequency identification method is provided, which can be performed by the first communication device as described in the first aspect. The method includes: the first communication device configures first frequency band information and second frequency band information, the first frequency band information is used to indicate the first frequency range used by the RFID unit to send information to the first excitation end, and the second frequency band information is used to indicate the second frequency range used by the first excitation end to send information to the tag; the first communication device sends a downlink signal to the first excitation end within the first frequency range, and receives a feedback signal from the first excitation end within the second frequency range; or the first communication device receives a reflected signal of the tag within the second frequency range. The first frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI.

[0023] In a possible implementation, the second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

[0024] In a possible implementation, the method further includes: the first communication device broadcasts a request message, receives capability information sent by the first excitation terminal, and configures the second frequency range according to the capability information of the first excitation terminal. The request message is used to request at least one excitation terminal to report the supported frequency range respectively. The first excitation terminal belongs to at least one excitation terminal that receives the request message. The capability information is used to indicate the frequency range supported by the first excitation terminal.

[0025] In a possible implementation, the time domain resources corresponding to the time-frequency resources in the first frequency range do not overlap with the time domain resources corresponding to the time-frequency resources in the second frequency range.

[0026] In a possible implementation, the reflected signal carries an operation result of operating the tag, or the reflected signal includes data information sent by the tag within the second frequency range.

[0027] In a possible implementation, the first frequency range includes 450 MHz-6.0 GHz and / or 24.25 GHz-52.6 GHz.

[0028] In a fifth aspect, a radio frequency identification method is provided, which can be performed by the second communication device in the second aspect as described above. The method includes: the second communication device receives the first frequency band information and the second frequency band information configured by the access network device, the first frequency band information is used to indicate the first frequency range used by the access network device to send information to the second communication device, and the second frequency band information is used to indicate the second frequency range used by the second communication device to send information to the tag; the second communication device receives the downlink signal sent by the access network device within the first frequency range and the feedback signal of the downlink signal sent within the second frequency range, or the second communication device sends an excitation signal to the tag within the second frequency range, so that the tag sends a reflected signal to the access network device within the second frequency range. Wherein, the first frequency range belongs to the frequency range supported by PLMN and / or the frequency range supported by WIFI.

[0029] In a possible implementation, the method further includes: the second communication device receives a request message and sends capability information. The request message is used to request the second communication device to report a supported frequency range. The capability information is used to indicate a frequency range supported by the second communication device, so that the access network device configures a second frequency range for the second communication device according to the capability information of the second communication device.

[0030] In a possible implementation, the second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

[0031] In a possible implementation, the method further includes: the second communication device can access the network in the same manner as a terminal device accesses the access network device.

[0032] In a sixth aspect, an embodiment of the present application provides a chip system, which includes a processor and may also include a memory and / or a communication interface for implementing the method described in any of the fourth to fifth aspects. Optionally, the chip system also includes a memory. The memory is used to store computer programs (also referred to as codes, or instructions). The processor is used to call and run a computer program from the memory so that a device equipped with the chip system executes any of the fourth to fifth aspects, and any of the methods in any possible implementation of any of the fourth to fifth aspects. The chip system may be composed of chips, or may include chips and other discrete devices.

[0033] In a seventh aspect, an embodiment of the present application provides a communication device, which includes an input / output interface and a logic circuit. The input / output interface is used to input and / or output information. The input / output interface can be an interface circuit, an output circuit, an input circuit, a pin or a related circuit, etc. The logic circuit is used to execute the method described in any one of the fourth to fifth aspects.

[0034] In the specific implementation process, the above-mentioned communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the logic circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The input signal received by the input circuit can be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit can be, for example, but not limited to, output to a transmitter and transmitted by the transmitter, and the input circuit and the output circuit can be the same circuit, which is used as an input circuit and an output circuit at different times. This application does not limit the specific implementation of the input and output interface and the logic circuit.

[0035] In an eighth aspect, the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed, the method in any of the fourth to fifth aspects described above is implemented.

[0036] In a ninth aspect, a computer program product is provided, the computer program product comprising: a computer program code, when the computer program code is run, the method in any of the above-mentioned fourth to fifth aspects is executed.

[0037] The beneficial effects of the third to ninth aspects and their implementations can refer to the description of the beneficial effects of the first to second aspects, or the first to second aspects and their implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the architecture of a centralized radio frequency identification system provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the architecture of a separate radio frequency identification system provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of a flow chart of a radio frequency identification method provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of the process of inventory labeling provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of the structure of an enhanced access network device provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of the structure of the first excitation end provided in an embodiment of the present application;

[0045] Figure 8 A schematic diagram of the structure of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] RFID technology is a contactless communication technology that uses radio frequency communication. Its principle is to achieve data communication between the reader and the tag through radio waves without contact. Tags, also known as radio frequency identification tags or electronic tags, are composed of coupling elements and chips, and are generally attached to objects to identify target objects. From the perspective of tag properties, tags can be divided into active tags, passive tags, and semi-active tags / semi-passive tags. Active tags are equipped with their own power supply (such as batteries) and can actively transmit signals using their own power supply. Passive tags are not equipped with or do not rely mainly on power devices such as batteries. They can obtain energy from the signals transmitted from the reader to achieve data communication with the reader.

[0047] See also Figure 1 , Figure 1 A schematic diagram of the architecture of a centralized radio frequency identification system provided for an embodiment of the present application. The radio frequency identification system includes a reader and a tag. The reader has both transmitting and receiving capabilities. The reader generates a signal and transmits the signal through an antenna. The signal is transmitted through the air interface to reach the tag. The signal sent by the reader is also called an excitation signal. If the power of the excitation signal is greater than the excitation threshold value of the tag, the tag will obtain energy from the excitation signal, so that the tag can backscatter a signal (also called a reflection signal) to the reader. The reflection signal can carry information, and the reader receives the reflection signal and demodulates the information in the reflection signal, so as to achieve the purpose of data communication between the reader and the tag without contact.

[0048] Figure 1 The transceiver functions of the reader are integrated together. Since the energy reflected by the tag is small, the reflected signal reflected by the tag to the reader may be submerged by the excitation signal sent by the reader itself. In addition, when multiple readers are deployed in the environment, the distance between these multiple readers is close, and the excitation signal sent by one reader will be received by another reader. The other reader may regard the received excitation signal as the reflection signal of the tag, which will cause the excitation signal of one reader to interfere with the reflection signal received by another reader.

[0049] To this end, a split RFID system architecture is proposed, such as Figure 2As shown in the figure. In the separated RFID system architecture, the reader is divided into a receiver and an exciter. The receiver is also called a receiving end or a receiving unit, and the exciter is also called an exciter end or an exciter unit.

[0050] The excitation unit is equivalent to the transmitter in the reader, and the receiving unit is equivalent to the receiver in the reader. The receiving unit can be used to manage and control the excitation unit. For example, the receiving unit can schedule the transmission of the excitation unit to the receiving unit, and can also schedule the transmission of the excitation unit to the tag. The receiving unit can also receive the reflected signal sent by the tag, and demodulate the reflected signal to obtain the valid information of the tag carried in the reflected signal. The receiving unit can also eliminate the interference caused by the excitation signal of the excitation unit to the reflected signal of the tag.

[0051] The excitation unit is controlled and managed by the receiving unit and can send an excitation signal to the tag. The excitation signal is used to provide excitation energy to activate the tag, and does not carry valid information. The excitation unit can also send a control signal to the tag according to the control of the receiving unit. The control signal is used to control the behavior of the tag and carries valid information. The excitation signal and the control signal are respectively carried on different frequency bands for transmission. The excitation unit has at least two transmission channels and supports at least two working frequency bands. One transmission channel can be used to send the excitation signal, and the other transmission channel is used to send the control signal. The tag receives the excitation signal and the control signal sent by the excitation unit, demodulates the control signal, and modulates the tag's valid information in the reflected signal and sends it to the receiving unit.

[0052] Compared with the centralized RFID system, the separated RFID system splits the reader into an excitation unit and a receiving unit. The excitation unit and the receiving unit are separated in space, so that the receiving unit can be farther away from the tag, thereby reducing the interference of the excitation signal on the reflected signal.

[0053] exist Figure 2 In the architecture shown, in order to reduce interference, the transmission from the receiving unit to the excitation unit (also called downlink transmission) and the transmission from the excitation unit to the receiving unit (also called uplink transmission) need to operate in different frequency bands. Figure 2 As shown, the working frequency band of downlink transmission can be 840MHz~845MHz; the working frequency band of uplink transmission can be 920MHz~925MHz. In addition, therefore, Figure 2 The architecture shown cannot be used in areas where the RFID frequency band is restricted.

[0054] In addition, due to the limitation of RFID dedicated spectrum, the excitation signal and the reflected signal work in the same frequency band, such as Figure 2As shown in FIG. 1 , the operating frequency bands of the tag's reflected signal and the tag's excitation signal are both 920 MHz to 925 MHz, and the excitation signal still interferes with the reflected signal.

[0055] Figure 2 In the architecture shown, a receiving unit can schedule multiple excitation units at the same time, which requires coordination of time and frequency resources for multiple excitation units. Limited by the range of RFID dedicated spectrum, the number of excitation units that can be scheduled at the same time is relatively small, so it is difficult to achieve large-scale networking and the usage scenarios are limited.

[0056] In view of this, a solution according to an embodiment of the present application is provided, which can schedule more excitation units at the same time, realize a larger-scale networking, and meet the needs of operating tags at a longer distance.

[0057] See also Figure 3 , showing a schematic diagram of the architecture of the communication system provided by an embodiment of the present application. The communication system includes an access network device, an excitation unit and a tag. Among them, the access network device merges / integrates the functions of the receiving unit of the reader / writer in the existing RFID system. For example, the access network device can be responsible for the scheduling and control of the excitation unit; for another example, the access network device can receive the reflected signal sent by the tag, and demodulate the reflected signal to obtain the valid information of the tag carried in the reflected signal. The excitation unit merges part or all of the functions of the terminal device, so that the excitation unit has functions similar to those of the terminal device. For example, the excitation unit has the network access function, mobility management function, etc. of the terminal device. Figure 3 The number of access network devices, excitation units and tags in the description is only an example. The communication system provided in the present application may include at least one access network device, at least one excitation unit and at least one tag.

[0058] Among them, the access network equipment may also be referred to as an access network (AN), an access network element or a radio access network (RAN). RAN may be a cellular system related to the 3rd generation partnership project (3GPP), for example, a fifth generation (5G) mobile communication system, or a future-oriented evolution system (for example, a sixth generation (6G) mobile communication system). For example, the 5G mobile communication system is a new radio (NR) system. RAN may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a virtualized RAN (vRAN). RAN may also be a communication system in which two or more of the above systems are integrated. RAN equipment may also be referred to as a RAN node, a RAN entity, or an access node. RAN may also be a WIFI / Wi-Fi network. In one possible scenario, the RAN node may be an access network device in a cellular system related to 3GPP, such as a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, etc. The RAN node may be an access point (AP) in a Wi-Fi / WIFI system. The RAN node may be a macro base station, a micro base station, an indoor station, a relay node, a donor node / host node, or a wireless controller, etc. The RAN node may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the RAN node in the vehicle to everything (V2X) technology may be a roadside unit (RSU).

[0059] In another possible scenario, the RAN node may be a module or unit that completes part of the functions of the base station; or multiple RAN nodes collaborate to assist the terminal device in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node may be a centralized unit (CU), a distributed unit (DU) or a radio unit (RU), etc. The functions of the CU may be implemented by one entity, or may be implemented by different entities. For example, the functions of the CU may be further divided, that is, the control plane and the user plane may be separated and implemented by different entities, namely, the control plane CU entity (i.e., CU-control plane (CP) entity) and the user plane CU entity (i.e., CU-user plane (UP) entity). The CU-CP entity and the CU-UP entity may be coupled with the DU to jointly complete the functions of the RAN node.

[0060] CU and DU can be configured according to the protocol layer functions of the wireless network they implement. For example, CU can complete the functions of the radio resource control protocol and packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); DU can complete the functions of the radio link control layer and medium access control (MAC) layer of the base station, and can also complete the functions of part or all of the physical layer. For the specific description of the above-mentioned protocol layers, please refer to the relevant technical specifications of 3GPP.

[0061] The receiving unit in the reader / writer is also called an RFID unit. For the convenience of description, the following takes the receiving unit in the reader / writer as an example of being called an RFID unit. The access network device in the embodiment of the present application integrates / integrates the function of the RFID unit in the reader / writer. For the convenience of distinction, the embodiment of the present application refers to the access network device that integrates the function of the receiving unit in the reader / writer as an enhanced access network device, and the access network device that does not integrate the function of the receiving unit in the reader / writer as a traditional access network device. The enhanced access network device can have some or all of the functions of the traditional access network device and all the functions of the RFID unit.

[0062] The embodiments of the present application do not limit how to integrate the functions of the RFID unit into the enhanced access network device. For example, the software and / or hardware included in the traditional access network device can be improved to obtain the enhanced access network device. For example, the radio frequency module of the traditional access network device can be modified to adapt to the demodulation of signals in different frequency bands; the software of the traditional access network device can be modified to adapt to the management and scheduling of the excitation unit and the demodulation of the reflected signal of the tag.

[0063] Among them, the terminal equipment, also known as terminal, terminal device, includes user equipment (UE), access station, UE station, remote station, station (STA), wireless communication equipment, or user device, chip, etc. The terminal equipment is used to connect people, objects, machines, etc., and can be widely used in various scenarios. For example, the terminal equipment can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, the Internet of Things (IoT), a wireless terminal in industrial control, a whole vehicle, a wireless communication module in a whole vehicle, a vehicle-mounted T-box (Telematics BOX), a road test unit (RSU), a wireless terminal in unmanned driving, and a drone with communication function (unmanned aerial vehicle or uncrewed aerial vehicle, UAV). The embodiment of the present application does not limit the form of the terminal equipment.

[0064] The excitation unit in the embodiment of the present application integrates / integrates part or all of the functions of the terminal device. For the sake of distinction, the excitation unit that integrates / integrates the functions of the terminal device is called an enhanced excitation unit, and relatively, the excitation unit that does not integrate the functions of the terminal device is called a traditional excitation unit. The embodiment of the present application does not limit how to make the excitation unit have part / all of the functions of the terminal device. For example, the software and / or hardware included in the excitation unit can be improved. For example, the radio frequency module of the excitation unit can be modified to adapt to tags of different frequency bands; the software of the excitation unit can be modified so that the excitation unit has functions similar to those of the terminal device, such as network access and mobility management.

[0065] The enhanced incentive unit has some or all functions of the terminal device. For example, the enhanced incentive unit has the network access and mobility management functions of the terminal device. The enhanced incentive unit can access the network in the same way as the terminal device accesses the access network device. Figure 3In the communication system shown, the enhanced access network device can schedule the enhanced excitation unit in the manner in which the traditional access network device schedules the terminal device. For example, the enhanced access network device is a base station, the enhanced excitation unit is a terminal device, the frequency bands available for the enhanced access network device include the frequency bands supported by the ordinary access network device (for example, the frequency bands supported by the cellular system related to 3GPP), and the frequency bands available for the enhanced excitation unit include the frequency bands supported by the terminal device (for example, the frequency bands supported by the cellular system related to 3GPP). For another example, the enhanced access network device is an AP, the enhanced excitation unit is a STA, the frequency bands available for the enhanced access network device include the frequency bands supported by the WIFI system, and accordingly, the frequency bands available for the enhanced excitation unit include the frequency bands supported by the WIFI system. Therefore, the enhanced access network device schedules the enhanced excitation unit to transmit signals / information in the frequency bands supported by the cellular system and / or WIFI system related to 3GPP. In this way, the enhanced access network device can schedule more enhanced excitation units at the same time, so that the networking scale is larger and can meet the operation of tags at a longer distance.

[0066] For the enhanced access network device and the enhanced excitation unit, the transmission from the enhanced access network device to the enhanced excitation unit may be referred to as downlink transmission, and the transmission from the enhanced excitation unit to the enhanced access network device may be referred to as uplink transmission. The frequency bands available for the downlink transmission may be all downlink frequency bands supported by the enhanced access network device, for example, all downlink frequency bands may be frequency bands supported by 3GPP-related cellular systems and / or frequency bands supported by WIFI systems. The frequency bands available for the uplink transmission may be all uplink frequency bands supported by the enhanced excitation unit / terminal device. For the enhanced excitation unit and the tag, the transmission from the enhanced excitation unit to the tag may be referred to as downlink transmission, and the transmission from the tag to the enhanced excitation unit may be referred to as uplink transmission. The frequency bands available for the downlink transmission may be frequency bands supported by the enhanced excitation unit / terminal device, for example, the frequency bands may be frequency bands supported by 3GPP-related cellular systems and / or frequency bands supported by WIFI systems. The frequency bands available for the uplink transmission may be frequency bands supported by the tag. Since the spectrum resources available for downlink transmission of enhanced access network devices (for example, frequency bands supported by 3GPP-related cellular systems and / or frequency bands supported by WIFI systems) are more than RFID-specific spectrum resources, more enhanced excitation units can be scheduled at the same time to achieve large-scale networking, which can realize operations on tags at longer distances.

[0067] Since the frequency bands supported by the 3GPP-related cellular system and / or the frequency bands supported by the WIFI system cover the frequency bands supported by the RFID system, the enhanced excitation unit can interact with the tag for signals / information at the frequency bands supported by the traditional RFID tag. Figure 3 In the architecture, the tag can be a traditional RFID tag (such as Figure 3 ). Or, Figure 3The tag in the can also be an enhanced RFID tag (such as Figure 3 The second type of tag in the text). The enhanced RFID tag is relative to the traditional RFID tag, and the enhanced RFID tag can support a wider frequency range. For example, the working frequency band of the enhanced RFID tag can be a frequency band supported by a cellular network related to 3GPP and / or a frequency band supported by a WIFI system.

[0068] In the above, the working frequency band of the enhanced access network device can be the frequency band supported by the 3GPP-related cellular system and / or the frequency band supported by WIFI. The embodiment of the present application does not limit the frequency band supported by the enhanced access network device, as long as it is larger than the frequency band range supported by the RFID system.

[0069] Combine the following Figure 3 As well as the other content mentioned above, Figure 3 The system architecture shown is a flow chart of the radio frequency identification method. Figure 4 The flowchart of the radio frequency identification method provided in the embodiment of the present application is exemplified. Figure 4 The provided radio frequency identification method 400 involves interaction between three communication devices, which are, for example, a first communication device, a second communication device, and a tag. The first communication device can implement the functions of the aforementioned enhanced access network device. The second communication device can implement the functions of the aforementioned enhanced incentive unit. The steps performed by the first communication device can be implemented by the enhanced access network device itself, or by components in the enhanced access network device (such as chips, processing units, or processor modules). The steps performed by the second communication device can be implemented by the enhanced incentive unit itself, or by components in the enhanced incentive unit (such as chips, processing units, or processor modules). Figure 3 The architecture may include one or more tags, and the multiple tags may include traditional RFID tags and / or enhanced RFID tags.

[0070] In the embodiments of the present application, "when", "if" and "if" all mean that the device will make corresponding processing under certain objective circumstances. They do not limit the time, nor do they require that the device must have a judgment action when it is implemented, nor do they mean that there are other limitations. "If" and "if" are interchangeable. Unless otherwise specified, "when" and "in the case of" are interchangeable. The steps indicated by dotted lines in the flowcharts involved in the embodiments of the present application are optional steps, that is, steps that may not be executed.

[0071] Unless otherwise specified, ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects, and the description of "first" and "second" does not necessarily limit the objects to be different. For example, the first frequency range and the second frequency range represent two frequency ranges, and do not limit the priority or importance of the two frequency ranges.

[0072] See also Figure 4 , which is a flow chart of a radio frequency identification method 400 provided in an embodiment of the present application. The radio frequency identification method 400 takes the first communication device as an enhanced access network device and the second communication device as a first excitation end as an example. The first excitation end is an enhanced excitation unit. It should be noted that the embodiments of the present application do not limit the specific names of "enhanced access network device" and "enhanced excitation unit".

[0073] S401. Enhance access network equipment configuration of first frequency band information and second frequency band information.

[0074] The first frequency band information may indicate a first frequency range used by the RFID unit to send information to the first excitation end. The enhanced access network device configures the first frequency band information and sends the first frequency band information to the RFID unit. The RFID unit may determine to send information to the first excitation end within the first frequency range based on the first frequency band information.

[0075] Since the RFID unit is integrated in the enhanced access network device, for the first excitation end, the RFID unit sending information to the first excitation end can also be regarded as the enhanced access network device sending information to the first excitation end. The frequency range that can be used by the RFID unit can be all frequency bands supported by the enhanced access network device. For example, the frequency range that can be used by the RFID unit belongs to the frequency band supported by the 3GPP-related cellular system; for another example, the frequency range that can be used by the RFID unit belongs to the frequency band supported by the WIFI system. Exemplarily, the first frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI. For example, the first frequency range includes 450MHz-6.0GHz and / or 24.25GHz-52.6GHz. Since the first frequency range belongs to the frequency band supported by the 3GPP-related cellular system and / or all frequency bands supported by WIFI, that is, the frequency range that can be used by the RFID unit is larger than the frequency range supported by the RFID system, so that more excitation ends can be scheduled simultaneously, so that the network scale is larger and can meet the operation of tags at a longer distance.

[0076] The second frequency band information may indicate a second frequency range used by the first excitation end to send information to the tag. The second frequency band information may be directly sent by the enhanced access network device to the first excitation end. Alternatively, the second frequency band information may be sent by the enhanced access network device to the RFID unit, and then the RFID unit sends the second frequency band information to the first excitation end.

[0077] The second frequency range may be a frequency band supported by the RFID system (e.g., 860-960 MHZ), which may enable signal / information interaction with a conventional RFID tag. Alternatively, the second frequency range may also be a frequency band supported by a 3GPP-related cellular system. For example, the second frequency range belongs to a frequency range supported by a PLMN and / or a frequency range supported by WIFI, supporting the interaction of signals / information between the first excitation end and the enhanced RFID tag, and having a wider range of applicable scenarios. In some embodiments, the second frequency range may belong to one or more of a frequency range supported by the RFID system, a frequency range supported by a PLMN, or a frequency range supported by WIFI, so as to minimize usage restrictions.

[0078] S402: The RFID unit in the enhanced access network device sends a downlink signal to the first excitation end within a first frequency range.

[0079] The downlink signal is a signal sent by the RFID unit in the enhanced access network device to the first excitation end. The downlink signal may be a signal for scheduling / controlling the first excitation end. For example, the downlink signal may carry a scheduling instruction for scheduling the first excitation end, and is used to schedule the first excitation end to send an excitation signal to the tag. According to the first frequency band information, the RFID unit may determine to send a downlink signal to the first excitation end within the first frequency range.

[0080] Optionally, the enhanced access network device may also send configuration information of the downlink signal to the first excitation end, and the configuration information includes the resource location occupied by the downlink signal. The first excitation end receives the configuration information of the downlink signal, and receives the downlink signal from the RFID unit according to the configuration information. Among them, the enhanced access network device may directly send the configuration information of the downlink signal to the first excitation end, or the configuration information of the downlink signal may be sent by the enhanced access network device to the RFID unit, and the RFID unit sends the configuration information of the downlink signal to the first excitation end. The first excitation end receives the configuration information of the downlink signal, and receives the downlink signal from the RFID unit according to the configuration information.

[0081] S403: The first excitation end sends a feedback signal to the RFID unit within a second frequency range.

[0082] The first excitation end receives a downlink signal from the RFID unit, and in response to the downlink signal, may send a feedback signal to the enhanced access network device within a second frequency range.

[0083] S404: The first excitation end sends an excitation signal to the tag within a second frequency range.

[0084] The first excitation end may also send an excitation signal to the tag according to the scheduling of the RFID unit. Because the frequency range used by the first excitation end to send information to the tag is the second frequency range, the first excitation end sends the excitation signal to the tag within the second frequency range.

[0085] The first excitation terminal receives a downlink signal sent by the enhanced access network device within the first frequency range and sends an excitation signal to the tag within the second frequency range. To reduce interference, the time domain resources corresponding to the time-frequency resources in the first frequency range are different from the time domain resources corresponding to the time-frequency resources in the second frequency range.

[0086] Optionally, the first excitation end receives a downlink signal within the first frequency range and starts a frequency forwarding function. After the first excitation end sends an excitation signal to the tag, the frequency forwarding function may be turned off to save power consumption as much as possible.

[0087] S405: The tag sends a reflected signal to the enhanced access network device within the second frequency range.

[0088] The tag obtains energy from the excitation signal, so that the tag can send a reflected signal to the RFID unit. The reflected signal can carry data information exchanged between the tag and the RFID unit. For example, the reflected signal carries the result of the operation of the RFID unit on the tag. The RFID unit receives the reflected signal sent by the tag within the second frequency range, demodulates the information in the reflected signal, and obtains the content included in the information. Alternatively, the tag receives the excitation signal and can send the reflected signal to the first excitation end, which forwards the reflected signal to the enhanced access network device ( Figure 3 Indicated by dotted lines).

[0089] In the embodiment of the present application, the function of the RFID unit is integrated into the access network device, and the excitation unit inherits part or all of the functions of the terminal device, so that more spectrum resources are available between the RFID unit and the excitation unit. For example, the frequency range that can be used between the RFID unit and the excitation unit is all frequency bands supported by the 3GPP-related cellular system and / or all frequency bands supported by WIFI, which is more than the traditional RFID dedicated spectrum resources. Through the embodiment of the present application, the RFID unit can dispatch more excitation units at the same time, which can realize large-scale networking and meet the operation of tags at a longer distance.

[0090] In a possible scenario, the tags in the network include traditional RFID tags and enhanced RFID tags. If the enhanced access network device does not know whether the tag that the RFID unit needs to operate is a traditional RFID tag or an enhanced RFID tag, the frequency range configured for the tag may not be applicable. To this end, the enhanced access network device can obtain the frequency range supported by the tag before configuring the second frequency information. That is, S406-S407 can be executed before S401.

[0091] S406: The enhanced access network device broadcasts a request message, where the request message requests at least one excitation terminal to report a supported frequency range.

[0092] S407: The first excitation end sends capability information to the enhanced access network device, where the capability information indicates a frequency range supported by the first excitation end.

[0093] The excitation end that receives the request message may report the frequency range supported by itself to the enhanced access network device in response to the request message. For example, the first excitation end receives the request message and sends capability information to the enhanced access network device, where the capability information indicates the frequency range supported by the first excitation end. The enhanced access network device configures the second frequency range according to the capability information of the first excitation end, thereby avoiding the frequency range configured for the first excitation end from being unusable.

[0094] If all the tags in the network are traditional RFID tags (such as Figure 3 The first type of tag in the Figure 3 The second type of tag in the protocol can define the frequency range supported by the enhanced RFID tag, and the enhanced access network device does not need to obtain the frequency range supported by each tag. Therefore, S406 and S407 are optional steps, that is, steps that are not required to be performed, and are indicated by dotted lines.

[0095] Based on the embodiments of the present application Figure 3 The communication system shown and Figure 4 In the method flow shown, the RFID unit can dispatch more excitation units at the same time to achieve a larger scale of networking, thereby enabling the operation of long-distance tags. Figure 3 The communication system shown can be applied to many scenarios such as warehousing, logistics, manufacturing, retail, asset management, etc. For ease of understanding, the following takes the inventory service as an example. Before the inventory service, the receiver and the exciter are first configured in the network.

[0096] See also Figure 5 , Figure 5 for Figure 3 The process flow chart of the RFID system for inventory management is shown in the figure. The method includes but is not limited to the following steps:

[0097] S501. Configure a receiving unit and an excitation unit in an enhanced access network device.

[0098] S501 is a network configuration process, including S5011-S5013, wherein the configuration receiving unit can be replaced by a configuration enhanced access network device.

[0099] S5011. Configure the local (identifier, ID) and link status monitoring of the receiving unit on the network management.

[0100] The network management seeks to establish a connection with the receiving unit / enhanced access network device according to the ID registered by the receiving unit. After the network management successfully establishes a connection with the receiving unit / enhanced access network device, the receiving unit / enhanced access network device returns the connection status to the network management and sends a master information block (MIB) to the excitation unit. The master information block includes information such as the valid physical carrier bitmap and frequency hopping.

[0101] S5012. Configure the local ID and link status monitoring of the excitation unit on the network management system.

[0102] The network management assigns a local ID and configuration information to the excitation unit according to the global ID of the excitation unit. After receiving the configuration information, the receiving unit / enhanced access network device sends a paging message to the excitation unit, and the paging message includes the global ID and the local ID. After the excitation unit receives the paging message, the excitation unit returns an acknowledgment (ACK) message of successful reception to the receiving unit / enhanced access network device. After receiving the confirmation message of the excitation unit, the receiving unit returns a response message of the ID configuration of the excitation unit to the network management.

[0103] S5013. Configure the incentive unit scheduling, inventory mode, and inventory parameters in the network management.

[0104] The network management sends a configuration message to the receiving unit, which is used to configure the scheduling, inventory mode and inventory parameters of the incentive unit. The receiving unit / enhanced access network device sends a management configuration message to the incentive unit, which includes the local ID and the frequency information of the radio frequency identification downlink (DL). After the incentive unit successfully receives the message, it returns a confirmation message to the sending end. After receiving the confirmation message from the incentive unit, the receiving unit returns a response message to the network management.

[0105] S502, the application server performs an inventory operation. S502 is the inventory operation process, including S5021-S5027.

[0106] S5021. The application server starts the inventory service.

[0107] Through the network configuration process of S501, after the receiving unit and the excitation unit establish a network connection, the application server starts the inventory service. Specifically, the application server sends a start inventory service message to the receiving unit / enhanced access network device.

[0108] S5022. The receiving unit / enhanced access network device sends a radio frequency identification working configuration message to the excitation unit.

[0109] After the receiving unit / enhanced access network device receives the start inventory service message sent by the application server, the receiving unit / enhanced access network device sends a radio frequency identification work configuration message to the excitation unit.

[0110] S5023. The incentive unit returns a confirmation message to the receiving unit / enhanced access network device.

[0111] After receiving the radio frequency identification working configuration message, the excitation unit sends a confirmation message to the receiving unit / enhanced access network device.

[0112] S5024. The receiving unit / enhanced access network device sends a radio frequency identification signaling to the excitation unit.

[0113] The receiving unit / enhanced access network device sends a radio frequency identification signaling to the excitation unit, where the radio frequency identification signaling is used to coordinate and schedule the excitation unit.

[0114] S5025. The excitation unit forwards the radio frequency identification signaling to the tag.

[0115] The excitation unit is controlled by the radio frequency identification signaling and sends the radio frequency identification signaling to the tag, and the radio frequency identification signaling is used to excite the tag.

[0116] S5026. The tag sends a reflected signal to the receiving unit.

[0117] The tag receives the RFID signal and modulates the reflected signal according to the RFID signal. The reflected signal contains the valid information of the tag itself. The tag sends the reflected signal to the receiving unit. Alternatively, the tag sends the reflected signal to the excitation unit, which forwards the reflected signal to the receiving unit.

[0118] S5027. The receiving unit / enhanced access network device reports service information to the application server.

[0119] After the receiving unit receives the reflected signal sent by the tag, the receiving unit demodulates the reflected signal and sends service information to the application server.

[0120] In the above embodiments provided by the present application, the method provided by the embodiment of the present application is introduced from the perspective of the interaction between the enhanced access network device, the first excitation terminal and the tag. In order to realize the various functions in the method provided by the above embodiments of the present application, the enhanced access network device, the first excitation terminal and the tag may include a hardware structure and / or a software module, and the above functions are realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0121] The following describes the communication device used to implement the above method in the embodiment of the present application in conjunction with the accompanying drawings. Therefore, the above contents can be used in subsequent embodiments, and repeated contents will not be repeated.

[0122] Figure 6 Schematic block diagram of a communication device 600 provided in an embodiment of the present application. The communication device 600 may be the enhanced access network device in the above embodiment. For example, the communication device 600 may be Figure 3 The communication device 600 is an access network device in the enhanced access network device. Or the communication device 600 is a chip (system) in the enhanced access network device. Or the communication device 600 is a software module of the enhanced access network device. The communication device 600 can implement the functions or steps implemented by the enhanced access network device in the above-mentioned method embodiments. The communication device 600 can implement the behaviors and functions of the enhanced access network device in the above-mentioned method embodiments, such as implementing Figure 4 The communication device 600 may be an enhanced access network device, or a component (such as a chip or circuit) used in an enhanced access network device, or a chip or a chipset in an enhanced access network device or a part of a chip used to perform the functions of the related method, or a device capable of implementing Figure 4 The software module of the method for enhancing the execution of the access network device is not limited.

[0123] For example, the communication device 600 includes a processing module 610 and an RFID module 620. The processing module 610 can be used to execute Figure 4 S401, S406, S407 in the embodiment shown, and / or other processes for supporting the technology described herein; RFID module 620 is used to perform Figure 4S402, S403, S405 in the illustrated embodiment, and / or other processes for supporting the technology described herein. Optionally, a storage unit may also be included, which may be used to store instructions (codes or programs) and / or data. The processing module 610 and the RFID module 620 may be coupled to the storage unit, for example, the processing module 610 may read the instructions (codes or programs) and / or data in the storage unit to implement the corresponding method. The above-mentioned units may be independently arranged, or may be partially or fully integrated.

[0124] The processing module 610 may be a processor or a controller, for example, a general-purpose central processing unit (CPU), a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present application. The processor may also be a combination that implements a computing function, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The RFID module 620 may be an RFID chip, an RFID circuit, an RFID unit or other possible modules for receiving signals from other devices. The storage unit may be, for example, a memory. The processing module 610 may execute computer-executable instructions stored in the storage unit. When the communication device 600 is a chip used in a network device or a chip in a terminal device, the storage unit may be a storage unit in the chip, such as a register, a cache, and the like. For example, the storage unit may also be a storage unit located outside the chip within the enhanced access network device, such as a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.

[0125] In some embodiments, the processing module 610 can be used to configure the first frequency band information and the second frequency band information, the first frequency band information is used to indicate the first frequency range used by the RFID unit to send information to the first excitation end, and the second frequency band information is used to indicate the second frequency range used by the first excitation end to send information to the tag. The first frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI. The RFID module 620 is used to send a downlink signal to the first excitation end within the first frequency range, and receive a feedback signal from the first excitation end within the second frequency range; or the RFID module 620 is used to receive a reflected signal of the tag within the second frequency range.

[0126] As an optional implementation, the second frequency range belongs to the frequency range supported by the RFID system, or the second frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI. Exemplarily, the first frequency range includes 450MHz-6.0GHz and / or 24.25GHz-52.6GHz.

[0127] As an optional implementation, the communication device 600 also includes a transceiver module, which is used to broadcast a request message and receive capability information sent by the first excitation end. The request message is used to request at least one excitation end to report the supported frequency range respectively. The first excitation end belongs to at least one excitation end that receives the request message. The capability information is used to indicate the frequency range supported by the first excitation end. When configuring the second frequency band information, the processing module 610 is used to configure the second frequency range according to the capability information of the first excitation end.

[0128] As an optional implementation manner, the time domain resources corresponding to the time-frequency resources in the first frequency range do not overlap with the time domain resources corresponding to the time-frequency resources in the second frequency range.

[0129] As an optional implementation manner, the reflection signal carries the operation result of the RFID module 620 operating the tag, or the reflection signal carries the data information of the interaction between the tag and the RFID module 620.

[0130] When the communication device 600 is a chip-type device or circuit, the transceiver module may be an input / output circuit and / or a communication interface; the processing module may be an integrated processor or microprocessor or integrated circuit. The RFID module is also called an RFID unit.

[0131] Figure 7 Schematic block diagram of a communication device 700 provided in an embodiment of the present application. The communication device 700 may be the first excitation terminal 7 in the above embodiment. For example, the communication device 700 may be Figure 3The communication device 700 is a chip (system) in the excitation unit. Or the communication device 700 is a software module of the excitation unit. The communication device 600 can implement the functions or steps implemented by the first excitation end in the above-mentioned method embodiments. The communication device 700 can implement the behaviors and functions of the first excitation end in the above-mentioned method embodiments, such as implementing Figure 4 The communication device 700 may be a first excitation end, or a component (such as a chip or circuit) used in the first excitation end, or a chip or a chipset in the first excitation end or a part of the chip used to perform the function of the related method, or a device capable of implementing Figure 4 The software module of the method executed by the first excitation end is not limited.

[0132] For example, the communication device 700 includes a transceiver module 710 and an excitation unit 720. The transceiver module 710 is an interface circuit of the communication device 700, which is used to receive signals from other devices. For example, when the device is implemented in a chip, the transceiver module 710 is an interface circuit of the chip for receiving signals from other chips or devices, or, it is an interface circuit of the chip for sending signals to other chips or devices. The excitation unit 720 can be a processor or a controller, for example, a general-purpose CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of the present application. The processor can also be a combination that implements a computing function, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The storage unit can be, for example, a memory. The processing module 710 can execute computer-executable instructions stored in the storage unit. When the communication device 600 is a chip used in a network device or a chip in a terminal device, the storage unit can be a storage unit in the chip, such as a register, a cache, and the like. For example, the storage unit may also be a storage unit located outside the chip within the enhanced access network device, such as a ROM or other types of static storage devices that can store static information and instructions, RAM, etc. Optionally, a storage unit may also be included, which may be used to store instructions (codes or programs) and / or data. The transceiver module 710 and the excitation unit 720 may be coupled to the storage unit, for example, the excitation unit 720 may read the instructions (codes or programs) and / or data in the storage unit to implement the corresponding method. The above-mentioned units may be independently arranged or partially or fully integrated.

[0133] The transceiver module 710 can be used to perform Figure 4S401, S403, S406, S407 in the embodiment shown, and / or other processes for supporting the technology described herein; the incentive unit 720 is used to execute Figure 4 S404 in the illustrated embodiment, and / or other processes for supporting the techniques described herein.

[0134] In some embodiments, the transceiver module 710 may be used to receive first frequency band information and second frequency band information configured by the access network device. The first frequency band information is used to indicate the first frequency range used by the access network device to send information to the second communication device, and the second frequency band information is used to indicate the second frequency range used by the communication device 700 to send information, and the first frequency range belongs to the frequency range supported by the PLMN and / or the frequency range supported by WIFI. The excitation unit 720 may be used to receive a downlink signal sent by the access network device within the first frequency range, and send a feedback signal to the access network device within the second frequency range, or send an excitation signal to the tag within the second frequency range, so that the tag sends a reflected signal to the access network device within the second frequency range.

[0135] In a possible implementation, the excitation unit 720 is further used to: receive a request message sent by the access network device, and send capability information to the access network device. The request message is used to request the communication device 700 to report the supported frequency range. The capability information is used to indicate the frequency range supported by the communication device 700.

[0136] In a possible implementation, the second frequency range belongs to a frequency range supported by RFID, or the second frequency range belongs to a frequency range supported by PLMN and / or a frequency range supported by WIFI. Exemplarily, the second frequency range may be determined according to a frequency range supported by the communication device 700.

[0137] Figure 8 Schematic block diagram of a communication device 800 provided in an embodiment of the present application. The communication device 800 may be the enhanced access network device or the first excitation terminal in the above embodiment. For example, the communication device 800 may be Figure 3 The access network device or the excitation unit in the communication device 800. Or the communication device 800 is the chip (system) in the aforementioned enhanced access network device or the first excitation end. In the embodiment of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. For specific functions, please refer to the description in the above method embodiment.

[0138] The communication device 800 includes one or more processors 801, which are used to implement or support the communication device 800 to implement the function of the enhanced access network device or the first excitation end in the method provided in the embodiment of the present application. Please refer to the detailed description in the method example for details, which will not be repeated here. The processor 801 may also be referred to as a processing unit or a processing module, which may implement certain control functions. The processor 801 may be a general-purpose processor or a dedicated processor, etc. For example, it includes: a baseband processor, a central processing unit, an application processor, a modem processor, a graphics processor, an image signal processor, a digital signal processor, a video codec processor, a controller, a memory, and / or a neural network processor, etc. The baseband processor may be used to process communication protocols and communication data. The central processing unit may be used to control the communication device 800 (e.g., an enhanced access network device or a first excitation end), execute software programs and / or process data. Different processors may be independent devices, or they may be integrated in one or more processors, for example, integrated in one or more application-specific integrated circuits.

[0139] In one design, the processor 801 may include a program 803 (sometimes also referred to as code or instruction), and the program 803 may be executed on the processor 801 to enable the communication device 800 to perform the method described in the following embodiments. In another possible design, the communication device 800 includes a circuit ( Figure 8 Not shown), the circuit is used to implement the function of the enhanced access network device or the first excitation end in the above embodiments.

[0140] In one design, the communication device 800 may include one or more memories 802 on which a program 804 (sometimes also referred to as code or instruction) is stored. The program 804 may be executed on the processor 801 so that the communication device 800 performs the method described in the above method embodiment, for example Figure 4 or Figure 5 The process shown.

[0141] In one design, the processor 801 and / or the memory 802 may include an artificial intelligence (AI) module 807 and an AI module 808, and the AI ​​module is used to implement AI-related functions. The AI ​​module may be implemented by software, hardware, or a combination of software and hardware. For example, the AI ​​module may include a RAN intelligent controller (RAN intelligent controller, RIC) module. For example, the AI ​​module may be a near real-time RIC or a non-real-time RIC.

[0142] In a possible design, data may also be stored in the processor 801 and / or the memory 802. The processor and the memory may be provided separately or integrated together.

[0143] In a possible design, the communication device 800 may further include a transceiver 805 and / or an antenna 806. The processor 801 may also be sometimes referred to as a processing unit, which controls the communication device 800. The transceiver 805 may also be sometimes referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which is used to implement the transceiver function of the communication device through the antenna 806.

[0144] In a possible design, the communication device 800 may also include one or more of the following components: a wireless communication module, an audio module, an external memory interface, an internal memory, a universal serial bus (USB) interface, a power management module, an antenna, a speaker, a microphone, an input / output module, a sensor module, a motor, a camera, or a display screen, etc. It is understood that in some embodiments, the communication device 800 may include more or fewer components, or some components may be integrated, or some components may be separated. These components may be implemented in hardware, software, or a combination of software and hardware.

[0145] The communication device in the above embodiment may be an enhanced access network device (or the first excitation end), or a circuit, or a chip applied to the enhanced access network device (or the first excitation end) or other combined devices, components, etc. having the above enhanced access network device (or the first excitation end). When the communication device is an enhanced access network device (or the first excitation end), the transceiver module may be a transceiver, which may include an antenna and a radio frequency circuit, etc., and the processing module may be a processor, for example: a CPU. When the communication device is a component having the function of the above enhanced access network device (or the first excitation end), the transceiver module may be a radio frequency unit, and the processing module may be a processor. When the communication device is a chip system, the communication device may be an FPGA, a dedicated ASIC, a system on chip (SoC), a CPU, a network processor (NP), a DSP, a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips. The processing module may be a processor of the chip system. The transceiver module or the communication interface may be an input and output interface or an interface circuit of the chip system. For example, the interface circuit may be a code / data read / write interface circuit. The interface circuit may be used to receive code instructions (the code instructions are stored in a memory, may be read directly from the memory, or may be read from the memory through other devices) and transmit them to a processor; the processor may be used to run the code instructions to execute the method in the above method embodiment. For another example, the interface circuit may also be a signal transmission interface circuit between a communication processor and a transceiver.

[0146] The embodiment of the present application also provides a communication system. Specifically, the communication system includes the aforementioned enhanced access network device, at least one first excitation terminal and at least one tag. Exemplarily, the communication system includes a method for implementing the above Figure 4 Access network equipment with related functions and devices for implementing the above Figure 4 The excitation terminal of the relevant functions, and the Figure 4 The present application also provides a communication system which can be specifically referred to above. Figure 3 For the architecture and description shown, please refer to the relevant description in the above method embodiment, which will not be repeated here.

[0147] The present application also provides a computer-readable storage medium including instructions, which, when executed on a computer, causes the computer to execute Figure 4 A method performed by a middle enhanced access network device or a first excitation end.

[0148] The present application also provides a computer program product, including instructions, which, when executed on a computer, causes the computer to execute Figure 4 A method performed by a middle enhanced access network device or a first excitation end.

[0149] The embodiment of the present application provides a chip system, which includes a processor and may also include a memory, for implementing the function of enhancing the access network device or the first excitation terminal in the aforementioned method. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0150] In order to achieve the above Figure 6 to Figure 8 In order to realize the functions of the communication device, the embodiment of the present application further provides a chip, including a processor, for supporting the communication device to realize the functions involved in enhancing the access network device or the first excitation end in the above method embodiment. In one possible design, the chip is connected to a memory or the chip includes a memory, and the memory is used to store the computer programs or instructions and data necessary for the communication device.

[0151] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0152] In the embodiments of the present application, for the number of nouns, unless otherwise specified, it means "singular noun or plural noun", that is, "one or more". "Multiple" means two or more. "At least one" can be one or more, for example, at least one is one, two or more, and it is not limited which ones are included. For example, if at least one of A, B and C is included, then A, B, C, A and B, A and C, B and C, or A and B and C can be included. Similarly, the understanding of descriptions such as "at least one" is also similar. "At least one of the following items (individuals)" or similar expressions refers to any combination of these items, including any combination of single items (individuals) or plural items (individuals). For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0153] Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0154] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0155] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0156] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the part of the technical solution of the present application that contributes essentially or the part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), RAM, magnetic disks or optical disks.

[0157] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations 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 include these modifications and variations.

Claims

1. A communication device, characterized in that: including a processor and a radio frequency identification RFID unit; The processor is used to configure first frequency band information and second frequency band information, the first frequency band information is used to indicate a first frequency range used by the RFID unit to send information to the first excitation end, and the second frequency band information is used to indicate a second frequency range used by the first excitation end to send information to the tag, and the first frequency range belongs to a frequency range supported by a public land mobile network PLMN and / or a frequency range supported by wireless fidelity WIFI; The RFID unit is configured to send a downlink signal to the first excitation end within the first frequency range, and receive a feedback signal from the first excitation end within the second frequency range; Or receiving the reflected signal of the tag within the second frequency range.

2. The device according to claim 1, characterized in that The second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

3. The device according to claim 1 or 2, characterized in that The communication device also includes a transceiver, the transceiver is used to broadcast a request message, and receive capability information sent by the first excitation end, the request message is used to request at least one excitation end to report a supported frequency range, the first excitation end belongs to at least one excitation end that receives the request message, and the capability information is used to indicate the frequency range supported by the first excitation end; When configuring the second frequency band information, the processor is specifically configured to configure the second frequency range according to the capability information of the first excitation end.

4. The device according to any one of claims 1 to 3, characterized in that: The time domain resources corresponding to the time domain resources where the first frequency range is located do not overlap with the time domain resources corresponding to the time domain resources where the second frequency range is located.

5. The device according to any one of claims 1 to 4, characterized in that: The reflected signal carries an operation result of the RFID unit operating the tag, or the reflected signal carries data information exchanged between the tag and the RFID unit.

6. The device according to any one of claims 1 to 5, characterized in that: The first frequency range includes 450 MHz-6.0 GHz and / or 24.25 GHz-52.6 GHz.

7. A communication device, characterized in that: Including transceiver and excitation unit: The transceiver is used to receive first frequency band information and second frequency band information configured by the access network device, the first frequency band information is used to indicate a first frequency range used by the access network device to send information to the communication device, and the second frequency band information is used to indicate a second frequency range used by the communication device to send information to the tag, and the first frequency range belongs to a frequency range supported by a public land mobile network PLMN and / or a frequency range supported by wireless fidelity WIFI; The excitation unit is used to receive a downlink signal sent by the access network device within the first frequency range, and send a feedback signal to the access network device within the second frequency range, or send an excitation signal to the tag within the second frequency range so that the tag sends a reflected signal to the access network device within the second frequency range.

8. The device according to claim 7, characterized in that The excitation unit is also used for: receiving a request message sent by the access network device, wherein the request message is used to request reporting of a frequency range supported by the excitation unit; Send capability information to the access network device, where the capability information is used to indicate a frequency range supported by the excitation unit.

9. The device according to claim 7 or 8, characterized in that The second frequency range belongs to a frequency range supported by RFID, or the second frequency range belongs to a frequency range supported by PLMN and / or a frequency range supported by WIFI.

10. The device according to any one of claims 7 to 9, characterized in that: The second frequency range is determined according to a frequency range supported by the excitation unit.

11. A communication system, characterized in that: include: A communication device as claimed in any one of claims 1 to 6, and a communication device and a tag as claimed in any one of claims 7 to 10.

12. A radio frequency identification method, characterized in that: include: Configure first frequency band information and second frequency band information, the first frequency band information is used to indicate a first frequency range used by the radio frequency identification RFID unit to send information to the first excitation end, and the second frequency band information is used to indicate a second frequency range used by the first excitation end to send information to the tag, the first frequency range belongs to a frequency range supported by a public land mobile network PLMN and / or a frequency range supported by wireless fidelity WIFI; Sending a downlink signal to the first excitation end within the first frequency range, and receiving a feedback signal from the first excitation end within the second frequency range; Or receiving the reflected signal of the tag within the second frequency range.

13. The method according to claim 12, characterized in that The second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

14. The method according to claim 12 or 13, characterized in that The method further comprises: Broadcasting a request message, wherein the request message is used to request at least one excitation end to report a supported frequency range; Receive capability information sent by the first excitation end, where the first excitation end belongs to at least one excitation end that has received the request message, and the capability information is used to indicate a frequency range supported by the first excitation end; wherein the second frequency range is configured according to the capability information of the first excitation end.

15. The method according to any one of claims 12 to 14, characterized in that: The time domain resources corresponding to the time-frequency resources where the first frequency range is located do not overlap with the time domain resources corresponding to the time-frequency resources where the second frequency range is located.

16. The method according to any one of claims 12 to 15, characterized in that: The reflected signal carries an operation result of operating the tag, or the reflected signal includes data information sent by the tag within the second frequency range.

17. The method according to any one of claims 12 to 16, characterized in that: The first frequency range includes 450 MHz-6.0 GHz and / or 24.25 GHz-52.6 GHz.

18. A radio frequency identification method, characterized in that: Applied to the excitation end, including: Receiving first frequency band information and second frequency band information configured by an access network device, wherein the first frequency band information is used to indicate a first frequency range used by the access network device to send information to the excitation end, and the second frequency band information is used to indicate a second frequency range used by the excitation end to send information to the tag, wherein the first frequency range belongs to a frequency range supported by a public land mobile network PLMN and / or a frequency range supported by wireless fidelity WIFI; Receiving a downlink signal sent by the access network device within a first frequency range; A feedback signal of the downlink signal is sent within the second frequency range, or an excitation signal is sent to the tag within the second frequency range, so that the tag sends a reflected signal to the access network device within the second frequency range.

19. The method according to claim 18, characterized in that The method further comprises: Receiving a request message, wherein the request message is used to request the excitation end to report a supported frequency range; Send capability information, where the capability information is used to indicate a frequency range supported by the excitation end.

20. The method according to claim 18 or 19, characterized in that The second frequency range belongs to a frequency range supported by the RFID system, or the second frequency range belongs to a frequency range supported by the PLMN and / or a frequency range supported by WIFI.

21. The method according to any one of claims 18 to 20, characterized in that: The second frequency range is determined according to the capability information of the excitation end.

22. The method according to any one of claims 18 to 21, characterized in that: The method further comprises: Access the network in the same way that a terminal device accesses the access network device.

23. A computer storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed on a computer, the computer is caused to execute the method according to any one of claims 12 to 17 or 18 to 22.

24. A computer program product, characterized in that The computer program product comprises a computer program code, which, when executed on a computer, causes the computer to perform the method according to any one of claims 12-17 or 18-22.

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