WO2023236868A1 - 反向散射通信配置方法、装置、网络侧设备和终端 - Google Patents
反向散射通信配置方法、装置、网络侧设备和终端 Download PDFInfo
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- 230000006854 communication Effects 0.000 title claims abstract description 478
- 238000004891 communication Methods 0.000 title claims abstract description 477
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/22—Scatter propagation systems, e.g. ionospheric, tropospheric or meteor scatter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
Definitions
- This application belongs to the field of communication technology, and specifically relates to a backscatter communication configuration method, device, network side equipment and terminal.
- Backscatter Communication is a backscatter communication device that uses radio frequency signals from other devices or the environment to perform signal modulation to transmit its own information.
- the traditional backscatter communication system includes a reader (Reader) and a tag ( Tag), where Reader is used to send signals and Tag is used to reflect signals.
- the backscatter communication system supported in the 5th Generation (5G) New Radio (NR) has added new terminals compared to the traditional backscatter communication system, thus New communication scenarios have arisen, so that there may be multiple choices for signal transmission paths, signal transmission times, etc. between network-side devices, terminals, and backscatter equipment. There may be an inconsistency problem in the communication mode of backscatter transmission, which will reduce the performance of backscatter communication.
- 5G 5th Generation
- NR New Radio
- Embodiments of the present application provide a backscattering communication configuration method, device, network side equipment and terminal, so that the network side equipment can configure the communication mode and related parameters of the terminal and/or backscattering equipment, so that the network side equipment, terminal and Backscatter equipment can perform backscatter communications based on consistent communication patterns and related parameters, improving the performance of backscatter communications.
- a backscatter communication configuration method includes:
- the network side device sends the first configuration information
- the network side device performs backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a backscatter communication configuration device for network side equipment, and the device includes:
- the first sending module is used to send the first configuration information
- a first execution module configured to perform backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a backscatter communication configuration method which method includes:
- the backscattering device receives the first configuration information from the network side device, or receives the third configuration information from the terminal;
- the backscatter device performs backscatter communication according to the first configuration information or the third configuration information
- the first configuration information or the third configuration information indicates the transmission parameters of the backscattering device in the target communication mode.
- a backscatter communication configuration device for backscatter equipment, and the device includes:
- the first receiving module is used to receive the first configuration information from the network side device, or to receive the third configuration information from the terminal;
- a second execution module configured to perform backscatter communication according to the first configuration information or the third configuration information
- the first configuration information or the third configuration information indicates the transmission parameters of the backscattering device in the target communication mode.
- a backscatter communication configuration method which method includes:
- the terminal receives the first configuration information
- the terminal performs backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a backscatter communication configuration device for use in a terminal, and the device includes:
- a second receiving module configured to receive the first configuration information
- a third execution module configured to perform backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a network side device in an eighth aspect, includes a processor and a memory.
- the memory stores programs or instructions that can be run on the processor.
- the program or instructions are executed by the processor.
- a backscattering device in a ninth aspect, includes a processor and a memory, and the memory
- the memory stores programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the third aspect.
- a terminal in a tenth aspect, includes a processor and a memory.
- the memory stores programs or instructions that can be run on the processor.
- the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in the five aspects.
- a network side device including a processor and a communication interface, the communication interface being used to send first configuration information and perform backscatter communication according to the first configuration information; wherein, the The first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a terminal including a processor and a communication interface, the communication interface being used to receive first configuration information and perform backscatter communication according to the first configuration information; wherein the first Configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- a wireless communication system including: a terminal, a network side device, and a backscatter device.
- the network side device can be used to perform the steps of the backscatter communication configuration method as described in the first aspect;
- the backscatter device may be used to perform the steps of the backscatter communication configuration method described in the third aspect;
- the terminal may be used to perform the steps of the backscatter communication configuration method described in the fifth aspect.
- a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented. The steps of the method as described in the third aspect, or the steps of implementing the method as described in the fifth aspect.
- a chip in a fifteenth aspect, includes a processor and a communication interface.
- the communication interface is coupled to the processor.
- the processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement the method as described in the third aspect, or implement the method as described in the fifth aspect.
- a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the first aspect or the third aspect.
- the network side device can send the first configuration information to the terminal and the backscatter device, so that the network side device, the terminal and the backscatter device can reach agreement on the communication mode and related parameters used in backscatter communication. ;
- the network side device can send the first configuration information to the terminal, and the terminal sends the third configuration information to the backscatter device according to the first configuration information.
- the terminal can determine the target of the backscatter communication according to the first configuration information.
- the backscatter device can determine the target communication mode of the backscatter communication according to the third configuration information and related parameters, which can also enable network side equipment, terminals and backscatter equipment to agree on the communication mode and related parameters used in backscatter communication. In this way, after the network side device, terminal and backscatter device agree on the communication mode and related parameters used in backscatter communication, backscatter communication can be performed based on the consistent communication mode and related parameters, improving backscatter communication. performance.
- Figure 1 is a schematic structural diagram of a wireless communication system to which embodiments of the present application can be applied;
- Figure 2 is a schematic diagram of the interaction process between Tag and reader
- Figure 3 is a schematic diagram of the signals transmitted between the Tag and the reader
- Figure 4 is a schematic diagram of information transmission between Tag and reader
- Figure 5 is a schematic flow chart of Tag receiving and sending data
- Figure 6 is a schematic flow chart of querying and accessing a single Tag
- Figure 7 is a flow chart of the first backscatter communication configuration method provided by the embodiment of the present application.
- Figure 8a is a schematic diagram of the scene in the second mode
- Figure 8b is one of the scene diagrams in the first mode
- Figure 8c is the second schematic diagram of the scene in the first mode
- Figure 8d is the third schematic diagram of the scene in the first mode
- Figure 9 is a flow chart of the second backscatter communication configuration method provided by the embodiment of the present application.
- Figure 10 is a flow chart of the third backscatter communication configuration method provided by the embodiment of the present application.
- Figure 11a is one of the schematic diagrams of information interaction in a backscatter communication configuration method provided by an embodiment of the present application.
- Figure 11b is the second schematic diagram of information interaction in a backscatter communication configuration method provided by an embodiment of the present application.
- Figure 11c is the third schematic diagram of information interaction in a backscatter communication configuration method provided by an embodiment of the present application.
- Figure 11d is the fourth schematic diagram of information interaction in a backscatter communication configuration method provided by an embodiment of the present application.
- Figure 12 is a schematic structural diagram of the first backscatter communication configuration device provided by an embodiment of the present application.
- Figure 13 is a schematic structural diagram of a second backscatter communication configuration device provided by an embodiment of the present application.
- Figure 14 is a schematic structural diagram of a third backscatter communication configuration device provided by an embodiment of the present application.
- Figure 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- Figure 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
- Figure 17 is a schematic structural diagram of a network side device provided by an embodiment of the present application.
- first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
- the first object can be one or multiple.
- “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
- LTE Long Term Evolution
- LTE-Advanced, LTE-A Long Term Evolution
- LTE-A Long Term Evolution
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-Carrier Frequency Division Multiple Access
- NR New Radio
- FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
- the wireless communication system includes a terminal 11 and a network side device 12.
- the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
- Tablet Personal Computer Tablet Personal Computer
- laptop computer laptop computer
- PDA Personal Digital Assistant
- PDA Personal Digital Assistant
- wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
- the network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless device.
- Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points, Wireless Fidelity (WiFi) nodes, etc.
- the base station may be called Node B, Evolved Node B (Evolved Node B, eNB), access point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B Node, Home Evolved B Node, Transmitting Receiving Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved,
- BSS Basic Service Set
- ESS Extended Service Set
- TRP Transmitting Receiving Point
- the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.
- the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access And Mobility Management Function, AMF), session management function (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy And Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc.
- MME mobility management entity
- AMF Access And Mobility Management Function
- SMF Session Management Function
- UPF User Plane Function
- PCF Policy Control Function
- Backscatter communication BSC means that backscatter communication equipment uses radio frequency signals from other devices or the environment to perform signal modulation to transmit its own information.
- backscatter communication equipment can be:
- the backscatter communication device in traditional radio frequency identification technology is generally a tag (Tag), which belongs to the passive Internet of Things (IoT) device (ie Passive-Iot),
- the Reader can send control commands and Continuous Wave (CW) signals to the Tag, and the Tag can perform operations based on the control commands and send the CW signal to the Tag.
- the signal is used as an excitation source to backscatter to feed back information to the Reader.
- Tag when Tag needs to send '1', Tag reflects the incident carrier signal, and when Tag needs to send '0', it does not reflect, then Reader The feedback information of the Tag can be obtained by comparing the received reflected signal with the transmitted signal.
- the backscatter communication device controls the reflection coefficient ⁇ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation.
- the reflection coefficient of the signal can be characterized as:
- Z 0 is the antenna characteristic impedance
- Z 1 is the load impedance
- the above-mentioned Reader can interact with Tag to control Tag as follows:
- Select The reader selects a tag group for subsequent inventory or challenges the tag group in an encrypted manner for subsequent identity verification.
- Select control includes Select command and Challenge command.
- the reader begins a round of inventory by transmitting a Query command in one of four sessions. There may be one or more tags that respond to the Query command. If the reader detects a response from a single tag, it can request the Protocol Control word (PC), the optional Extended Protocol Control word (XPC), or the Electronic Product Code (Electronic Product Code) from that tag. , EPC) and 16-bit cyclic redundancy check code (16Bits Cyclic Redundancy Check, CRC-16). Among them, only one round of inventory operations can be performed in one session at a time, and one round of inventory can contain multiple control commands.
- PC Protocol Control word
- XPC Extended Protocol Control word
- EPC Electronic Product Code
- CRC-16 16-bit cyclic redundancy check code
- Access The process by which a reader interacts with a single tag (such as reading, writing, verifying, or other interactions).
- the reader individually identifies and uniquely identifies the tag before accessing it.
- Access contains multiple commands.
- Reader's instructions for operating Tag can carry the inventory cycle (Inventory round), Q value and time slot (Slot), whose definition is shown in Table 1 below:
- Tag's operation type that is, control instructions
- the Tag can be in any of the states shown in Table 3 below:
- the protocol design of Ultra High Frequency (UHF) RFID requires the reader to send a query command (Query) and then the tag (Tag) responds (Reply) in inventory mode, that is, a 16- bit random number to the reader. Then the reader sends the sequence to the Tag through the ACK command, and the Tag sends the relevant data to the reader.
- Query query command
- Tag tag responds
- Reply in inventory mode
- the process of data interaction between the reader and Tag mainly includes the following steps:
- Step 1 The reader issues Query, QueryAdjust, and QueryRep commands
- Step 2 There are two possible results (the first result is assumed in the embodiment shown in Figure 6):
- Timeslot 0: The label feeds back RN16 to reply;
- Step 3 The reader sends an ACK using the same RN16 to inform the tag that it has received backscatter signal feedback;
- Step 4 There are two possible results (the first result is assumed in the embodiment shown in Figure 6):
- Valid RN16 Label feedback ⁇ PC/XPC, EPC ⁇ to respond;
- Step 5 The reader issues a Req_RN command containing the same RN16;
- Step 6 There are two possible results (the first result is assumed in the embodiment shown in Figure 6):
- Step 7 The reader accesses the tag.
- Each access command uses handle as a parameter
- Step 8. Label verification handle.
- the backscatter communication system supported in 5G New Radio (NR) adds new terminals to the traditional backscatter communication system, thus creating new communication scenarios and making the network
- the backscatter communication configuration method provided by the embodiment of the present application is aimed at configuring different backscatter communication modes and the communication parameters required in different communication modes through the network side device in the backscatter communication scenario in which the terminal participates, so that the network side device, The terminal and backscatter equipment agree on the communication mode and related parameters used in backscatter communication, so that backscatter communication can be performed based on the consistent communication mode and related parameters, improving the performance of backscatter communication.
- the first backscatter communication configuration method provided by the embodiment of the present application can be executed by a network side device.
- the network side device can be various network side devices listed in the embodiment as shown in Figure 1.
- the device 12 is taken as an example that the network side device is a base station in the embodiment of this application, and no specific limitation is constituted here.
- the backscatter communication configuration method performed by the network side device may include the following steps:
- Step 701 The network side device sends first configuration information, where the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- the network side device may send the first configuration information to at least one of the terminal and the backscattering device (assumed to be a Tag).
- the configuration information sent to Tag can be carried in the control command
- the configuration information sent to the terminal can be carried in Radio Resource Control (RRC) signaling, system information, and Media Access Control Layer Control Unit (Medium Access).
- RRC Radio Resource Control
- Control Element, MAC CE Downlink Control Information
- DCI Downlink Control Information
- the base station can directly perform backscattering communication with the Tag.
- the base station can send the first configuration to the Tag information, so that both the base station and the Tag perform backscatter communication according to the second mode, wherein in the second mode, the base station directly performs backscatter communication with the Tag without the need for the terminal to assist in performing the backscatter communication. communication.
- the base station can To send the first configuration information to the Tag and the UE, so that the base station, the UE and the Tag all perform backscatter communication in a first mode, wherein in the first mode, the UE can assist the base station in performing backscatter communication with the Tag.
- the UE-assisted base station as shown in Figure 8b receives feedback information from Tag
- the UE-assisted base station as shown in Figure 8c sends continuous wave CW signals and/or control instructions to Tag, and/or, as shown in Figure
- the UE shown in 8d assists the base station in sending CW and receives feedback information from Tag.
- the UE also sends a second control command (ACK/NACK) to Tag based on the received Tag feedback information.
- ACK/NACK second control command
- the terminal when the terminal serves as the receiving end of feedback information, the terminal may organize the received Tag feedback information to obtain the first information, and report the first information to the base station, so that the base station can The first information sends a second control command (ACK/NACK) to Tag.
- ACK/NACK second control command
- the base station can send the first configuration information to the UE, and the UE can perform the configuration according to the first configuration information.
- the network side device can configure the relevant information of the control command carrying the third configuration information to the terminal, so that the terminal sends the control command carrying the third configuration information to the Tag. It can also enable the base station, UE and Tag to all perform backscatter communication according to the first mode, which is not specifically limited here.
- Step 702 The network side device performs backscatter communication according to the first configuration information.
- the network side device may perform backscatter communication according to the first configuration information by: when the target communication mode of the backscatter communication indicated by the first configuration information is the first mode, assisting the terminal in performing backscatter communication. Backscattering communication; when the target communication mode of the backscattering communication indicated by the first configuration information is the second mode, backscattering communication can be performed with the backscattering device without terminal assistance, that is to say, in the third In the second mode, the network side device directly communicates with the backscatter device.
- the above-mentioned first parameter may include communication parameters required for controlling at least one of the network side device, the backscatter device and the terminal to operate in the target communication mode.
- the first parameter may indicate a certain function (send The execution device of the first signal, sending control commands and receiving feedback information, etc.) is a terminal or a base station, and indicates the execution time node of a certain function, etc.
- a certain function send The execution device of the first signal, sending control commands and receiving feedback information, etc.
- the network side equipment, backscatter equipment and terminals can clearly understand the functions they need to perform during backscatter communication, as well as the order in which each function should be performed, etc., which can improve the performance of backscatter communication.
- the first parameter includes at least one of the following:
- the first indication information is used to indicate the sending end of the first signal, the first signal is the excitation source of the backscattering device, wherein the sending end of the first signal includes the network side equipment or said terminal;
- the second indication information is used to indicate the sending end of a control command, and the control command is used to control the backscattering device, wherein the sending end of the control command includes the network side device or the terminal;
- the third indication information is used to indicate the receiving end of the feedback information in the backscattering communication, the feedback information corresponds to the control command, and the backscattering device is based on the first The signal acquires an excitation source for sending the feedback information, wherein the receiving end of the feedback information includes the network side device or the terminal.
- the first indication information may indicate whether the device sending the first signal is a network-side device or a terminal.
- the first signal may be any signal that can provide an excitation source for the backscattering device.
- the first signal Taking the first signal as a continuous wave CW signal as an example for illustration, this does not constitute a specific limitation.
- the second indication information may indicate whether the device sending the control command to the backscattering device is a network-side device or a terminal.
- the control command may include at least one of the following:
- a first control command, the first control command includes at least one of a selection command, a query command, and an access command;
- a second control command is a feedback command corresponding to the feedback information.
- the selection command may include: select command, challenge command and sort command.
- Query commands include: Query command, QueryAdjust command and QueryRep command.
- Access commands include: Req_RN command, Read command, Write command, Lock command, Kill command, Access command, BlockWrite command, BlockErase command, BlockPermalock command, Authenticate command, ReadBuffer command, SecureComm command, AuthComm command, KeyUpdate command, Untraceable command, FileOpen command, FileList command, FilePrivilege command, FileSetup command and TagPrivilege command.
- the backscattering device that receives the above-mentioned first control command can perform corresponding operations and feed back the execution result or query result of the first control command based on the excitation source of the first signal.
- backscattering device The information fed back by the device after executing the first control command is called feedback information.
- the receiving end of the feedback information may be indicated by the third indication information as a network side device or terminal.
- the network side device or terminal may also receive and respond to the feedback information, that is, send a second control command to the backscattering device, To inform the backscattering device whether its feedback information has been received.
- the second control command may include an ACK command and a NACK command.
- a positive acknowledgment (ACK) command can be sent to the Tag to notify the Tag that the feedback information it sent has been correctly received; if the network side device does not receive the first control command within the preset time period after sending it to the Tag.
- the network side device can send a Negative Acknowledgment (NACK) command to the Tag to notify the Tag that the feedback information it sent has not been received correctly, so that the Tag can determine whether it needs to be re-executed.
- NACK Negative Acknowledgment
- the first control command and the second control command may be sent by the same or different devices.
- the first control command and the second control command are both sent by the network side device, and the terminal is responsible for receiving feedback from the Tag. information, and sends the first information compiled according to the feedback information to the network side device; or the first control command and the second control command are both sent by the terminal; or the network side device sends the first control command, and the terminal receives the feedback information and sends the second control command; or, the terminal sends the first control command, and the network side device receives the feedback information and sends the second control command, etc.
- the third indication information may indicate whether the device receiving the feedback information sent by the backscattering device is a network side device or a terminal.
- the third instruction information is also used to instruct the receiving end of the feedback information to send the first information to the processing end of the feedback information, where the first information includes the information received by the receiving end of the feedback information.
- the processing end of the feedback information may be the sending end of the second control command.
- the sending end of the second control command needs to determine which backscattering devices to send the second control command to according to the obtained feedback information, and Determine whether to send an ACK command or a NACK command.
- the receiving end of the feedback information can send the first information to the sending end of the second control command according to the third instruction information.
- a piece of information may include feedback information received by the receiving end of the feedback information.
- the above-mentioned first device may be at least part of the backscattering device that received the first control command, executed the first control command and fed back the feedback information.
- a competitive communication process is used between multiple Tags in the backscatter communication system:
- the Reader can usually only receive the backscatter signal of one Tag at the same time.
- the Reader when the Reader sends a control command to start the inventory process of multiple Tags, it will indicate a value Q.
- Each Tag locally randomly selects a value q from the value range ⁇ 0,...,2 Q -1 ⁇ .
- the Tag whose current random value is 0 will respond to the Reader's control command and transmit the backscatter signal.
- Tags whose current random value is not 0 will not transmit backscatter signals for the time being.
- the above-mentioned first device may include a Tag that performs backscattering signals within a preset time (for example, a time interval configured by the network side device through the first parameter).
- the above process belongs to the process of random multiple access.
- multiple Tags may generate the same random number locally, which may lead to the possibility of multiple Tags performing backscattering transmission at the same time at a certain moment.
- the Reader should select a reasonable Q value when sending control commands, and can gradually adjust the Q value during the inventory process to reduce the probability of conflict during communication with multiple Tags. Of course, this also means that it takes longer to complete communication with multiple tags.
- the behavior of the terminal and the network side device in backscatter communication may be instructed through at least one of the above-mentioned first indication information, second indication information and third indication information.
- control command and the first signal do not overlap in time domain.
- a first signal can be sent, so that the Tag can use the first signal as an excitation source for backscattering after receiving and executing the control command.
- the first parameter further includes:
- the second configuration information is used to configure first transmission parameters
- the first transmission parameters are transmission parameters used by the network side device when receiving the first information.
- the above-mentioned second configuration information may be the transmission parameters used by the network side device when receiving the first information, that is, the transmission parameters used by the terminal when sending the first information, for example: the format of transmitting the first information, the physical channel mapping method, Physical channel resources and transmission methods (for example: each time the terminal receives feedback information from a Tag, it immediately reports the feedback information to the network side device, or allows the terminal to report feedback information from all Tags received within a preset time period. Organize it into the first information and report it to the network side device), etc.
- the above second configuration information can be carried in RRC signaling, MAC CE or DCI commands, which will not be described again here.
- multiple sets of second configuration information and identification information (such as number) of each set of second configuration information may be agreed in advance, where each set of second configuration information includes corresponding transmission content, format, physical channel mapping method and Physical channel resources, etc., when the network side device configures the transmission parameters used by the terminal to send the first information, it only needs to indicate the identification information of a certain second configuration information to the terminal.
- the network side device can also configure the transmission parameters for the terminal to report the first information, so that the transmission performance of the first information is more reliable.
- the network side device when the second indication information indicates that the sending end of the control command is the network side device, the network side device performs backscattering according to the first configuration information.
- Communications including:
- the network side device sends the first control command to the backscattering device
- the network side device receives feedback information from the backscatter device, or the network side device receives first information from the terminal, where the first information is at least part of the feedback information of the backscatter device.
- the network side device serves as the sending end of the control command and sends the first control command to the backscattering device in backscattering communication.
- the network side device when the second indication information indicates that the sending end of the control command is the network side device, the network side device performs backscattering according to the first configuration information.
- Communications including:
- the network side device receives feedback information from the first device, or the network side device receives the first information from the terminal, and the first device includes receiving at least part of the reverse direction of the first control command.
- the first information includes feedback information of the first device received by the terminal;
- the network side device sends the second control command to the first device.
- the network side device serves as the sender of the control command.
- backscatter communication after obtaining the feedback information of the first device, it sends the second control to the sender of the feedback information (backscatter device).
- command to inform the sending end of the feedback information (the backscattering device) through the second control command that it has successfully received its feedback information, so that the backscattering device that has not received the second control command can respond based on the fact that the backscattering device has not received the second control command.
- the terminal can send the second control command according to the feedback information after receiving feedback information from the backscattering device.
- the terminal may not send the first information to the network side device.
- the network side device may also send the first information to the terminal, which will not be described again here.
- the network side device when the target communication mode is the second mode, performs backscattering communication according to the first configuration information, including:
- the network side device sends a first control command to the backscatter device, where the first control command includes at least one of a selection command, a challenge command, and an access command;
- the network side device receives feedback information from a first device, where the first device includes at least part of the backscattering device;
- the network side device sends a second control command to the first device, where the second control command is a feedback command corresponding to the feedback information.
- the network side device in the second mode, can perform backscatter communication without terminal assistance. However, during the process of performing backscatter communication, the network side device can still use a forwarding device (for example, a terminal) to forward information with the backscatter device.
- a forwarding device for example, a terminal
- the first parameter includes at least one of the following:
- the fourth indication information is used to indicate the forwarding information of the backscatter communication.
- the fourth indication information may be used to indicate any of the following:
- the network side device and the backscatter device directly perform the backscatter communication. At this time, there is no other device parameter backscatter communication;
- the network side device and the backscattering device perform the backscattering communication through the forwarding device.
- the forwarding device can forward the interactive information between the network side device and the backscattering device (for example: the forwarding device will forward the backscattering device to the backscattering device).
- the feedback information fed back to the scattering device is forwarded to the network side device).
- the fourth indication information may be used to indicate whether the forwarding device and the Tag need to forward the interaction between the network side device and the Tag.
- the feedback information includes at least one of the following:
- Temporary identification of backscatter equipment (such as RN8, RN16, handle, etc.), inventory round number, protocol control character PC, extended protocol control character XPC and electronic commodity code EPC.
- the first parameter also includes at least one of the following:
- Transmission parameters of the backscattering device include at least one of the following: encoding method, modulation frequency, data rate and Q value, the Q value is used to control the response probability of the backscattering device;
- N is a positive integer
- the number of backscattering equipment M in each round of inventory, M is a positive integer
- the target timeline including time information of at least one signal transmission node in the backscatter communication
- Target resource information includes time domain and/or frequency domain resource information transmitted in at least one of the backscatter communications.
- the above-mentioned transmission parameters of the backscattering device can be used to control the transmission parameters used when the backscattering device sends feedback information to the receiving end of the feedback information.
- the definitions of coding method, modulation frequency, data rate and Q value are consistent with In the related art, the coding method, modulation frequency, data rate and Q value in backscatter communication have the same definitions, which will not be described again here.
- the above-mentioned inventory round number N can be used to indicate that the sending end of the control instruction will initiate N rounds of inventory (query), and N can be greater than or equal to 1.
- the control command for controlling the backscattering device includes an inventory round identifier, and the inventory round identifier indicates The control command is used for the nth round of inventory, where n is a positive integer less than or equal to N.
- the inventory command may carry an inventory identifier to indicate which round of inventory the current inventory is.
- target timeline can also be used to reflect which round of inventory is currently in, which will not be described again here.
- the number M of backscattering devices in each round of inventory mentioned above can mean that each inventory command can trigger the inventory process of M Tags.
- different N values can correspond to the same or different M values.
- N and M can be independent of each other. In actual backscatter communication, only one of N and M can be configured. For example, if N is not configured, only one round of inventory will be performed by default.
- N and M may be displayed and indicated, or N and M corresponding to the predefined first mode and second mode respectively, when the network side device indicates that the target communication mode of backscatter communication is the first mode or In the case of the second mode, the values of M and/or N in the target communication mode can be determined implicitly.
- the receiving end of the feedback information can receive feedback information of N*M Tags at most.
- the feedback information The first information sent by the receiving end to the sending end of the second control command may include feedback information of N*M Tags at most.
- the above target timeline may include time information of at least one signal transmission node in backscatter communication, such as: the sending time of the control command, the sending time of the first signal, the sending time of the first information, and the sending of feedback information. Time etc.
- At least one of the above time information can be explicitly indicated by the network side device, or the first mode and the second mode can be associated with respective time information in advance, so that the network side device indicates the target communication mode, the above target timeline can be determined based on the time information associated with the target communication mode.
- the inventory processes are different in different communication modes, so the network side device can configure time information matching its inventory process for different communication modes.
- the target timeline may include the sending time of the first information, command The sending time of , the sending time of CW and the time of Tag feedback information.
- the target timeline may include the time when the network side device sends the CW and command and the time when the Tag feedback information is sent.
- the time information includes at least one of the following:
- the first time interval, the sending moment of the first signal is located within the first time interval, the starting point of the first time interval is the end time of the first time unit, and the first time unit is the direction in the reverse direction.
- a time unit in which the scattering device sends a first first control command, and the first signal serves as an excitation source for the backscattering device;
- the second time interval, the time interval between sending two adjacent first control commands is greater than or equal to the second time interval
- the third time interval when the target communication mode is the first communication mode, the sending time of the first information is located in the third time interval, and the time starting point of the third time interval is the first time
- the start/end moment of the unit wherein the first information includes feedback information from a first device including at least part of the backscattering device that received the first control command;
- the fourth time interval the time interval between the time when the same backscattering device receives the first control command and the time when feedback information is sent is less than or equal to the fourth time interval.
- the first time interval represents T1
- the second time interval represents T2
- the third time interval represents T3, and the fourth time interval represents t1.
- the target resource information may include time-frequency resource information for sending and/or receiving at least one of the first information, command, CW, and feedback information.
- the above target resource information may include frequency domain and time domain resource information used by the terminal when sending the command.
- the above target resource information may include frequency domain and time domain resource information used by the terminal to receive feedback information.
- the network side device can send the first configuration information to the terminal and the backscatter device, so that the network side device, the terminal and the backscatter device can reach agreement on the communication mode and related parameters used in backscatter communication. ;
- the network side device can send the first configuration information to the terminal, and the terminal sends the third configuration information to the backscatter device according to the first configuration information.
- the terminal can determine the target of the backscatter communication according to the first configuration information.
- the backscattering device can determine the target communication mode and related parameters of the backscattering communication according to the third configuration information, which can also enable the network side device, terminal and backscattering device to adopt the method for backscattering communication. reached an agreement on the communication mode and related parameters. In this way, after the network side device, terminal and backscatter device agree on the communication mode and related parameters used in backscatter communication, backscatter communication can be performed based on the consistent communication mode and related parameters, improving backscatter communication. performance.
- Figure 9 is a second backscatter communication configuration method provided by an embodiment of the present application.
- the difference between the backscatter communication configuration method shown in Figure 9 and the backscatter communication configuration method shown in Figure 7 is that :
- the execution subject of the backscatter communication configuration method is the backscatter device (for example: Tag), and as shown in Figure 7, the backscatter communication
- the execution subject of the configuration method is the network side device.
- the backscatter communication configuration method executed by the backscatter device may include the following steps:
- Step 901 The backscattering device receives the first configuration information from the network side device, or receives the third configuration information from the terminal.
- Step 902 The backscattering device performs backscattering communication according to the first configuration information or the third configuration information; wherein the first configuration information or the third configuration information indicates the backscattering Transmission parameters of the device in target communication mode.
- the above-mentioned first configuration information has the same meaning and effect as the first configuration information sent by the network side device in the method embodiment shown in Figure 7, and will not be described again here.
- the above third configuration information may be that in the method embodiment shown in Figure 7, after the network side device sends the first configuration information to the terminal, the terminal determines and sends the third configuration information to the backscattering device based on the first configuration information.
- the content of the third configuration information may be the same as the first configuration information, or the first configuration information may be configuration information used to configure the behavior of the terminal and the backscattering device, and the third configuration information may be configuration information used to configure the backscattering device.
- the configuration information of the behavior of the device, the first configuration information and the third configuration information can all enable the backscattering device to perform backscattering communication according to the target communication mode, which will not be described again here.
- the target communication mode includes any of the following:
- the backscatter device assists in performing the backscatter communication through a terminal
- the backscatter device performs the backscatter communication without assistance from a terminal.
- the transmission parameters include at least one of the following: encoding method, modulation frequency, data rate, Q value, and feedback time of feedback information.
- the backscattering device receives the first configuration information from the network side device, or receives the third configuration information from the terminal, including:
- the backscattering device receives a first control command from a network side device or a terminal, wherein the first control command from the network side device includes the first configuration information, or the first control command from the terminal
- the first control command includes the third configuration information
- the backscattering device performs backscattering communication according to the first configuration information or the third configuration information, including:
- the backscattering device executes the first control command according to the first configuration information or the third configuration information, and sends feedback information for executing the first control command.
- the first parameter may also indicate that the receiving end of the feedback information is a network side device or a terminal, and then the backscattering device executes the first control command according to the first configuration information or the third configuration information. , and send feedback information for executing the first control command, which may be that the backscattering device sends the feedback information to the receiving end of the feedback information indicated by the network side device after executing the first control command.
- the second backscatter communication configuration method provided by the embodiment of the present application corresponds to the method embodiment shown in Figure 7 and can achieve similar beneficial effects. To avoid duplication, it will not be described again here.
- Figure 10 is a flow chart of the third backscatter communication configuration method provided by an embodiment of the present application.
- the difference between the method embodiment shown in Figure 10 and the method embodiment shown in Figure 7 is that, as shown in Figure The execution subject of the method embodiment shown in Figure 10 is the terminal, while the execution subject of the method embodiment shown in Figure 7 is the network side device.
- the backscatter communication configuration method executed by the terminal may include the following steps:
- Step 1001 The terminal receives first configuration information; wherein the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- Step 1002 The terminal performs backscatter communication according to the first configuration information.
- the target communication mode includes any of the following:
- the terminal assists the network side device and the backscatter device to perform the backscatter communication;
- the terminal in the second mode, does not assist the network side device and the backscatter device to perform the backscatter communication.
- the terminal performing backscatter communication according to the first configuration information may be: the terminal assists the network side device to perform at least one of the following in backscatter communication: sending the first signal, sending control Command, receive feedback information, integrate and report feedback information, etc.
- the terminal performing backscatter communication according to the first configuration information may be: the terminal forwards the feedback information reflected by the Tag to the network side device without assisting the network side device in performing backscatter communication with the Tag. .
- the terminal may not forward the feedback information of the Tag to the network side device, that is, the network side device directly receives the feedback information from the Tag, which will not be described in detail here.
- the method further includes:
- the terminal determines third configuration information based on the first configuration information
- the terminal sends the third configuration information to the backscattering device related to the backscattering communication, where the third configuration information is used to indicate the transmission parameters of the backscattering device in the target communication mode.
- the relationship between the first configuration information and the third configuration information is the same as the relationship between the first configuration information and the third configuration information in the method embodiment shown in Figure 9, and will not be described again here.
- the network side device can only configure the target communication mode and the communication parameters in the target communication mode to the terminal, and the terminal determines how to configure the transmission of the backscattering device in the target communication mode according to the configuration of the network side device. parameter.
- the transmission parameters include at least one of the following:
- the Q value is used to control the response probability of the backscattering device.
- the first parameter includes at least one of the following:
- the first indication information is used to indicate the sending end of the first signal, the first signal is the excitation source of the backscattering device, wherein the sending end of the first signal includes the network side equipment or said terminal;
- the second indication information is used to indicate the sending end of a control command, and the control command is used to control the backscattering device, wherein the sending end of the control command includes the network side device or the terminal;
- the third indication information is used to indicate the receiving end of the feedback information in the backscattering communication, the feedback information corresponds to the control command, and the backscattering device is based on the first The signal acquires an excitation source for sending the feedback information, wherein the receiving end of the feedback information includes the network side device or the terminal.
- control command includes at least one of the following:
- a first control command, the first control command includes at least one of a selection command, a query command, and an access command;
- a second control command is a feedback command corresponding to the feedback information.
- the terminal when the second indication information indicates that the sending end of the control command is the terminal, the terminal performs backscatter communication according to the first configuration information, including:
- the terminal sends the first control command to the backscattering device
- the terminal receives feedback information from the backscatter device, or the terminal receives first information from the network side device, where the first information is at least part of the feedback information of the backscatter device.
- the terminal Performing backscatter communication according to the first configuration information includes:
- the terminal receives feedback information from the backscatter device, or the terminal receives first information from the network side device, where the first information is at least part of the feedback information of the backscatter device;
- the terminal sends the second control command to the backscatter device.
- the third indication information indicates that the receiving end of the feedback information is the terminal, and if the processing end of the feedback information is the network side device, the third indication information further Used to instruct the terminal to send first information to the network side device, where the first information includes feedback information from the first device received by the terminal, and the first device includes at least part of the control command received.
- Backscatter equipment
- the terminal performs backscatter communication according to the first configuration information, including:
- the terminal receives feedback information from the first device
- the terminal determines the first information based on the received feedback information
- the terminal sends the first information to the network side device.
- the above-mentioned first information may be information obtained by the terminal after sorting all the feedback information reflected by the backscatter equipment in N rounds of inventory.
- the first parameter includes at least one of the following:
- the fourth indication information is used to indicate the forwarding information of the backscatter communication.
- the fourth indication information is used to indicate any of the following:
- the network side device and the backscatter device directly perform the backscatter communication
- the network side device and the backscattering device perform the backscattering communication through the terminal, wherein the terminal is used to forward the feedback information sent by the backscattering device to the backscattering device in the backscattering communication.
- Network side equipment
- the feedback information includes at least one of the following:
- the first parameter also includes at least one of the following:
- Transmission parameters of the backscattering device include at least one of the following: encoding method, modulation frequency, data rate and Q value, the Q value is used to control the response probability of the backscattering device;
- N is a positive integer
- the number of backscattering equipment M in each round of inventory, M is a positive integer
- the target timeline including time information of at least one signal transmission node in the backscatter communication
- Target resource information includes time domain and/or frequency domain resource information transmitted in at least one of the backscatter communications.
- the time information includes at least one of the following:
- the first time interval, the sending moment of the first signal is located within the first time interval, the starting point of the first time interval is the end time of the first time unit, and the first time unit is the direction in the reverse direction.
- a time unit in which the scattering device sends a first first control command, and the first signal serves as an excitation source for the backscattering device;
- the second time interval, the time interval between sending two adjacent first control commands is greater than or equal to the second time interval
- the third time interval when the target communication mode is the first communication mode, the sending time of the first information is located in the third time interval, and the time starting point of the third time interval is the first time
- the start/end moment of the unit wherein the first information includes feedback information from a first device including at least part of the backscattering device that received the first control command;
- the fourth time interval the time interval between the time when the same backscattering device receives the first control command and the time when feedback information is sent is less than or equal to the fourth time interval.
- the control command for controlling the backscattering device includes an inventory round identifier, and the inventory round identifier indicates The control command is used for the nth round of inventory, where n is a positive integer less than or equal to N.
- the third backscatter communication configuration method provided by the embodiment of the present application corresponds to the method embodiment shown in Figures 7 and 9, and can achieve similar beneficial effects. To avoid duplication, it will not be described again here.
- the network side device configures a UE-assisted backscatter communication scenario (that is, the target communication mode is the first mode).
- the network side device sends the first configuration information to the UE and Tag respectively.
- the first configuration information sent by the network side device to the UE may indicate the following information:
- the network side device sends control commands (including the first control command and the second control command) and CW, as well as the sending time of each control command and CW;
- the UE receives the Tag feedback information, integrates the feedback information to obtain the first information, and reports it to the network side device.
- the transmission information used when reporting the first information is also configured by the network side device;
- first time interval T1 second time interval T2 and third time interval T3
- first time interval T1 second time interval T2
- second time interval T2 third time interval T3
- M and N may be explicit instructions from the network, or may be implicit instructions from the communication model.
- the M and N are independent of each other, and the M value in each round of inventory can be reconfigured.
- Tags that fail the competition will not feedback RN16 information, and the first information reported by the UE may not necessarily include M Tags.
- the network side device may notify the UE of the contents of the above first configuration information through RRC signaling, MAC CE, DCI and other signals.
- the first configuration information sent to Tag by the network side device may indicate the following information:
- Tag transmission parameters include: encoding method, modulation frequency, data rate, Q value, and feedback time of feedback information, etc.;
- the network side device can configure the content in the first configuration information of Tag through the select command of command.
- Figure 11a the gNB sends the control command and CW.
- the transmission resource time domains of the control command and CW do not overlap.
- Figure 11a is only used as an example.
- the gNB sends the control command and CW, and the terminal receives the Tag feedback information and reports the first information to the gNB.
- the network side device configures a UE-assisted backscatter communication scenario (that is, the target communication mode is the first mode).
- the network side device sends the first configuration to the UE and Tag respectively. information.
- the first configuration information sent by the network side device to the UE may indicate the following information:
- the target communication mode is the first mode
- the network side device sends the first control command and CW;
- the UE receives the Tag feedback information and sends the second control command (ACK/NACK) to the Tag according to the feedback information;
- first time interval T1 second time interval T2 and third time interval T3
- first time interval T1 second time interval T2
- second time interval T2 third time interval T3
- the first configuration information sent to Tag by the network side device may indicate the following information:
- Tag transmission parameters include: encoding method, modulation frequency, data rate, Q value, and feedback time of feedback information, etc.;
- the network side device can also be configured to send at least one of the first control command, the second control command, and the CW by the terminal, and/or the network side device can be configured by the network side
- the device receives Tag feedback information, which will not be described again here.
- the network side device configures a non-UE-assisted backscatter communication scenario (that is, the target communication mode is the second mode).
- the network side device sends the first configuration information to the UE and Tag respectively.
- the first configuration information sent by the network side device may indicate the following information:
- the target communication mode is the second mode
- relay There is a forwarding device (relay) (in this embodiment, it is assumed that the relay is a UE. In implementation, the relay may also be other devices besides the UE, which is not limited here) participating in backscatter communication;
- the network side device sends control commands and CW;
- the network side device After receiving multiple rounds of inventory information, the network side device then performs ACK/NACK based on the Tag feedback information;
- Tag transmission parameters including: coding method, modulation frequency, data rate, Q value, feedback information time, etc. Among them, the presence or absence of relay affects the Tag feedback time, and may also affect M, N or transmission parameters. ;
- the forwarding device (such as UE) only plays the role of relaying and forwarding the signal and does not play other roles.
- the network side device configures a non-UE-assisted backscatter communication scenario (that is, the target communication mode is the second mode).
- the network side device sends the first configuration information to Tag.
- the first configuration information sent by the network side device may indicate the following information:
- the target communication mode is the second mode
- the network side device sends control commands and CW;
- the network side device After receiving multiple rounds of inventory information, the network side device then performs ACK/NACK based on the Tag feedback information;
- Tag transmission parameters including: coding method, modulation frequency, data rate, Q value, feedback information time, etc.;
- the execution subject may be a backscatter communication configuration device.
- the backscatter communication configuration method performed by the backscatter communication configuration device is used as an example to illustrate the backscatter communication configuration device provided by the embodiment of the present application.
- the first backscatter communication configuration device provided by the embodiment of the present application can be applied to network side equipment.
- the backscatter communication configuration device 1200 can include the following modules:
- the first sending module 1201 is used to send the first configuration information
- the first execution module 1202 is used to perform backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- the target communication mode includes any of the following:
- the network side device assists in performing the backscatter communication through the terminal
- the network side device performs the backscatter communication without assistance from the terminal.
- the first parameter includes at least one of the following:
- the first indication information is used to indicate the sending end of the first signal, the first signal is the excitation source of the backscattering device, wherein the sending end of the first signal includes the network side equipment or said terminal;
- the second indication information is used to indicate the sending end of a control command, and the control command is used to control the backscattering device, wherein the sending end of the control command includes the network side device or the terminal;
- the third indication information is used to indicate the receiving end of the feedback information in the backscattering communication, the feedback information corresponds to the control command, and the backscattering device is based on the first The signal acquires an excitation source for sending the feedback information, wherein the receiving end of the feedback information includes the network side device or the terminal.
- the third indication information is also used to indicate the receiving end of the feedback information. sending first information to the processing end of the feedback information, where the first information includes the feedback information of the first device received by the receiving end of the feedback information, wherein, the first device includes at least part of the backscattering device that received the control command.
- the first parameter also includes:
- Second configuration information wherein the second configuration information is used to configure a first transmission parameter, and the first transmission parameter is a transmission parameter used by the network side device when receiving the first information.
- control command includes at least one of the following:
- a first control command, the first control command includes at least one of a selection command, a query command, and an access command;
- a second control command is a feedback command corresponding to the feedback information.
- the first execution module 1202 includes:
- a first sending unit configured to send the first control command to the backscattering device
- a first receiving unit configured to receive feedback information from the backscattering device, or the network side device receives first information from the terminal, where the first information is feedback from at least part of the backscattering device. information.
- the first execution module 1202 includes:
- the second receiving unit is configured to receive feedback information from the first device, or the network side device receives the first information from the terminal.
- the first device includes at least part of the first control command received.
- Backscattering device the first information includes feedback information of the first device received by the terminal;
- the second sending unit is configured to send the second control command to the first device.
- the first parameter includes at least one of the following:
- the fourth indication information is used to indicate the forwarding information of the backscatter communication.
- the fourth indication information is used to indicate any of the following:
- the network side device and the backscatter device directly perform the backscatter communication
- the network side device and the backscatter device perform the backscatter communication through the forwarding device.
- the first execution module 1202 includes:
- a third sending unit configured to send a first control command to the backscattering device, where the first control command includes at least one of a selection command, a query command, and an access command;
- a third receiving unit configured to receive feedback information from a first device, the first device including at least part of the backscattering device;
- a fourth sending unit is configured to send a second control command to the first device, where the second control command is a feedback command corresponding to the feedback information.
- the feedback information includes at least one of the following:
- the first parameter also includes at least one of the following:
- Transmission parameters of the backscattering device include at least one of the following: encoding method, modulation frequency, data rate and Q value, the Q value is used to control the response probability of the backscattering device;
- N is a positive integer
- the number of backscattering equipment M in each round of inventory, M is a positive integer
- the target timeline including time information of at least one signal transmission node in the backscatter communication
- Target resource information includes time domain and/or frequency domain resource information transmitted in at least one of the backscatter communications.
- the time information includes at least one of the following:
- the first time interval, the sending moment of the first signal is located within the first time interval, the starting point of the first time interval is the end time of the first time unit, and the first time unit is the direction in the reverse direction.
- a time unit in which the scattering device sends a first first control command, and the first signal serves as an excitation source for the backscattering device;
- the second time interval, the time interval between sending two adjacent first control commands is greater than or equal to the second time interval
- the third time interval when the target communication mode is the first communication mode, the sending time of the first information is located in the third time interval, and the time starting point of the third time interval is the first time
- the start/end moment of the unit wherein the first information includes feedback information from a first device including at least part of the backscattering device that received the first control command;
- the fourth time interval the time interval between the time when the same backscattering device receives the first control command and the time when feedback information is sent is less than or equal to the fourth time interval.
- the control command used to control the backscattering device includes an inventory round identifier, and the inventory round identifier indicates The control command is used for the nth round of inventory, where n is a positive integer less than or equal to N.
- the backscatter communication configuration device 1200 provided by the embodiment of the present application can perform various processes performed by the network side device in the method embodiment shown in Figure 7, and can achieve the same beneficial effects. To avoid duplication, they will not be described again here. .
- the second backscatter communication configuration device provided by the embodiment of the present application can be applied to backscatter equipment.
- the backscatter communication configuration device 1300 can include the following modules:
- the first receiving module 1301 is used to receive the first configuration information from the network side device, or to receive the third configuration information from the terminal;
- the second execution module 1302 is configured to perform backscatter communication according to the first configuration information or the third configuration information;
- the first configuration information or the third configuration information indicates the transmission parameters of the backscattering device in the target communication mode.
- the target communication mode includes any of the following:
- the backscattering device assists in performing the backscattering pass through a terminal.
- the backscatter device performs the backscatter communication without assistance from a terminal.
- the transmission parameters include at least one of the following: encoding method, modulation frequency, data rate, Q value, and feedback time of feedback information.
- the first receiving module 1301 is specifically used for:
- the second execution module 1302 is specifically used for:
- the first control command is executed according to the first configuration information or the third configuration information, and feedback information for executing the first control command is sent.
- the backscatter communication configuration device 1300 provided by the embodiment of the present application can perform various processes performed by the network side device in the method embodiment shown in Figure 9, and can achieve the same beneficial effects. To avoid duplication, they will not be described again here. .
- the third backscatter communication configuration device provided by the embodiment of the present application can be applied to terminals.
- the backscatter communication configuration device 1400 can include the following modules:
- the second receiving module 1401 is used to receive the first configuration information
- the third execution module 1402 is used to perform backscatter communication according to the first configuration information
- the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- the target communication mode includes any of the following:
- the terminal assists the network side device and the backscatter device to perform the backscatter communication;
- the terminal in the second mode, does not assist the network side device and the backscatter device to perform the backscatter communication.
- the backscatter communication configuration device 1400 further includes:
- Determining module configured to determine third configuration information according to the first configuration information
- the second sending module is configured to send the third configuration information to the backscattering device related to the backscattering communication, where the third configuration information is used to indicate the transmission of the backscattering device in the target communication mode. parameter.
- the transmission parameters include at least one of the following:
- the Q value is used to control the response probability of the backscattering device.
- the first parameter includes at least one of the following:
- the first indication information is used to indicate the sending end of the first signal, the first signal is the excitation source of the backscattering device, wherein the sending end of the first signal includes the network side equipment or said terminal;
- the second indication information is used to indicate the sending end of a control command, and the control command is used to control the backscattering device, wherein the sending end of the control command includes the network side device or the terminal;
- the third indication information is used to indicate the receiving end of the feedback information in the backscattering communication, the feedback information corresponds to the control command, and the backscattering device is based on the first The signal acquires an excitation source for sending the feedback information, wherein the receiving end of the feedback information includes the network side device or the terminal.
- control command includes at least one of the following:
- a first control command, the first control command includes at least one of a selection command, a query command, and an access command;
- a second control command is a feedback command corresponding to the feedback information.
- the third execution module 1402 includes:
- a fifth sending unit configured to send the first control command to the backscattering device
- the fifth receiving unit is configured to receive feedback information from the backscattering device, or the terminal receives first information from the network side device, where the first information is feedback from at least part of the backscattering device. information.
- the third execution Module 1402 including:
- a sixth receiving unit configured to receive feedback information from the backscattering device, or the terminal receives first information from the network side device, where the first information is feedback from at least part of the backscattering device. information;
- a sixth sending unit configured to send the second control command to the backscattering device.
- the third indication information indicates that the receiving end of the feedback information is the terminal, and if the processing end of the feedback information is the network side device, the third indication information also Used to instruct the terminal to send first information to the network side device, where the first information includes feedback information from the first device received by the terminal, and the first device includes at least part of the control command received.
- Backscatter equipment
- the third execution module 1402 includes:
- a seventh receiving unit configured to receive feedback information from the first device
- a determining unit configured to determine the first information according to the received feedback information
- a seventh sending unit is configured to send the first information to the network side device.
- the first parameter also includes:
- Second configuration information wherein the second configuration information is used to configure first transmission parameters, and the first transmission parameters are transmission parameters used when the terminal sends the first information to the network side device.
- the first parameter includes at least one of the following:
- the fourth indication information is used to indicate the forwarding information of the backscatter communication.
- the fourth indication information is used to indicate any of the following:
- the network side device and the backscatter device directly perform the backscatter communication
- the network side device and the backscattering device perform the backscattering communication through the terminal, wherein the terminal is used to forward the feedback information sent by the backscattering device to the backscattering device in the backscattering communication.
- Network side equipment
- the feedback information includes at least one of the following:
- the first parameter also includes at least one of the following:
- Transmission parameters of the backscattering device include at least one of the following: encoding method, modulation frequency, data rate and Q value, the Q value is used to control the response probability of the backscattering device;
- N is a positive integer
- the number of backscattering equipment M in each round of inventory, M is a positive integer
- the target timeline including time information of at least one signal transmission node in the backscatter communication
- Target resource information includes time domain and/or frequency domain resource information transmitted in at least one of the backscatter communications.
- the time information includes at least one of the following:
- the first time interval, the sending moment of the first signal is located within the first time interval, the starting point of the first time interval is the end time of the first time unit, and the first time unit is the direction in the reverse direction.
- a time unit in which the scattering device sends a first first control command, and the first signal serves as an excitation source for the backscattering device;
- the second time interval, the time interval between sending two adjacent first control commands is greater than or equal to the second time interval
- the third time interval when the target communication mode is the first communication mode, the sending time of the first information is located in the third time interval, and the time starting point of the third time interval is the first time
- the start/end moment of the unit wherein the first information includes feedback information from a first device including at least part of the backscattering device that received the first control command;
- the fourth time interval the time interval between the time when the same backscattering device receives the first control command and the time when feedback information is sent is less than or equal to the fourth time interval.
- the control command used to control the backscattering device includes an inventory round identifier, and the inventory round identifier indicates The control command is used for the nth round of inventory, where n is a positive integer less than or equal to N.
- the backscatter communication configuration device 1400 provided by the embodiment of the present application can perform various processes performed by the terminal in the method embodiment shown in Figure 10, and can achieve the same beneficial effects. To avoid duplication, they will not be described again here.
- the backscatter communication configuration device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system.
- a device can also be a component in an electronic device, such as an integrated circuit or chip.
- the electronic device may be a terminal or other devices other than the terminal.
- terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
- Other devices may be servers, network attached storage (Network Attached Storage, NAS), etc.
- this embodiment of the present application also provides a communication device 1500, which includes a processor 1501 and a memory 1502.
- the memory 1502 stores programs or instructions that can be run on the processor 1501, such as , when the communication device 1500 is a network-side device, when the program or instruction is executed by the processor 1501, each process executed by the backscatter communication configuration device as shown in Figure 12 is implemented, and the same technical effect can be achieved.
- the communication device 1500 is a backscatter device
- the program or instruction is executed by the processor 1501
- each process executed by the backscatter communication configuration device as shown in Figure 13 is implemented, and the same technical effect can be achieved.
- the communication device 1500 is a terminal, when the program or instruction is executed by the processor 1501, each process executed by the backscatter communication configuration device as shown in Figure 14 is implemented, and the same technical effect can be achieved.
- An embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface being used to receive first configuration information and perform backscatter communication according to the first configuration information; wherein the first configuration Information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- FIG. 16 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
- the terminal 1600 includes but is not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609, a processor 1610, etc. At least some parts.
- the terminal 1600 may also include a power supply (such as a battery) that supplies power to various components.
- the power supply may be logically connected to the processor 1610 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
- the terminal structure shown in FIG. 16 does not constitute a limitation on the terminal.
- the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
- the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042.
- the graphics processor 16041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
- the display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 1607 includes a touch panel 16071 and at least one of other input devices 16072. Touch panel 16071, also known as touch screen.
- the touch panel 16071 may include two parts: a touch detection device and a touch controller.
- Other input devices 16072 may include, but are not limited to, physical keyboards, function keys (such as (volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be described in detail here.
- the radio frequency unit 1601 after receiving downlink data from the network side device, the radio frequency unit 1601 can transmit it to the processor 1610 for processing; in addition, the radio frequency unit 1601 can send uplink data to the network side device.
- the radio frequency unit 1601 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
- Memory 1609 may be used to store software programs or instructions as well as various data.
- the memory 1609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
- memory 1609 may include volatile memory or nonvolatile memory, or memory 1609 may include both volatile and nonvolatile memory.
- non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
- Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch Link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
- RAM Random Access Memory
- SRAM static random access memory
- DRAM dynamic random access memory
- synchronous dynamic random access memory Synchronous DRAM, SDRAM
- Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
- Enhanced SDRAM, ESDRAM synchronous dynamic random access memory
- Synch Link DRAM synchronous link dynamic random access memory
- SLDRAM direct memory bus random access memory
- the processor 1610 may include one or more processing units; optionally, the processor 1610 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1610.
- the radio frequency unit 1601 is used for the terminal to receive the first configuration information and perform backscatter communication according to the first configuration information; wherein the first configuration information is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- the target communication mode includes any of the following:
- the terminal assists the network side device and the backscatter device to perform the backscatter communication;
- the terminal in the second mode, does not assist the network side device and the backscatter device to perform the backscatter communication.
- the target communication mode is the first mode
- Processor 1610 configured to determine third configuration information according to the first configuration information
- Radio frequency unit 1601 is also configured to send the third configuration to the backscattering device related to the backscattering communication.
- Information, the third configuration information is used to indicate the transmission parameters of the backscattering device in the target communication mode.
- the transmission parameters include at least one of the following:
- the Q value is used to control the response probability of the backscattering device.
- the first parameter includes at least one of the following:
- the first indication information is used to indicate the sending end of the first signal, the first signal is the excitation source of the backscattering device, wherein the sending end of the first signal includes the network side equipment or said terminal;
- the second indication information is used to indicate the sending end of a control command, and the control command is used to control the backscattering device, wherein the sending end of the control command includes the network side device or the terminal;
- the third indication information is used to indicate the receiving end of the feedback information in the backscattering communication, the feedback information corresponds to the control command, and the backscattering device is based on the first The signal acquires an excitation source for sending the feedback information, wherein the receiving end of the feedback information includes the network side device or the terminal.
- control command includes at least one of the following:
- a first control command, the first control command includes at least one of a selection command, a query command, and an access command;
- a second control command is a feedback command corresponding to the feedback information.
- the radio frequency unit 1601 performs the backscattering communication according to the first configuration information, including:
- Feedback information from the backscattering device is received, or the terminal receives first information from the network side device, where the first information is feedback information from at least part of the backscattering device.
- the radio frequency unit 1601 The execution of backscattering communication according to the first configuration information includes:
- Receive feedback information from the backscatter device or the terminal receives first information from the network side device, where the first information is at least part of the feedback information of the backscatter device;
- the third indication information indicates that the receiving end of the feedback information is the terminal, and if the processing end of the feedback information is the network side device, the third indication information further Used to instruct the terminal to send first information to the network side device, where the first information includes feedback information from the first device received by the terminal, and the first device includes at least part of the control command received.
- Backscatter equipment
- the radio frequency unit 1601 performs backscattering communication according to the first configuration information, including:
- Radio frequency unit 1601 used to receive feedback information from the first device
- Processor 1610 configured to determine the first information according to the received feedback information
- the radio frequency unit 1601 is also configured to send the first information to the network side device.
- the first parameter also includes:
- Second configuration information wherein the second configuration information is used to configure first transmission parameters, and the first transmission parameters are transmission parameters used when the terminal sends the first information to the network side device.
- the first parameter includes at least one of the following:
- the fourth indication information is used to indicate the forwarding information of the backscatter communication.
- the fourth indication information is used to indicate any of the following:
- the network side device and the backscatter device directly perform the backscatter communication
- the network side device and the backscattering device perform the backscattering communication through the terminal, wherein the terminal is used to forward the feedback information sent by the backscattering device to the backscattering device in the backscattering communication.
- Network side equipment
- the feedback information includes at least one of the following:
- the first parameter also includes at least one of the following:
- Transmission parameters of the backscattering device include at least one of the following: encoding method, modulation frequency, data rate and Q value, the Q value is used to control the response probability of the backscattering device;
- N is a positive integer
- the number of backscattering equipment M in each round of inventory, M is a positive integer
- the target timeline including time information of at least one signal transmission node in the backscatter communication
- Target resource information includes time domain and/or frequency domain resource information transmitted in at least one of the backscatter communications.
- the time information includes at least one of the following:
- the first time interval, the sending moment of the first signal is located within the first time interval, the starting point of the first time interval is the end time of the first time unit, and the first time unit is the direction in the reverse direction.
- a time unit in which the scattering device sends a first first control command, and the first signal serves as an excitation source for the backscattering device;
- the second time interval, the time interval between sending two adjacent first control commands is greater than or equal to the second time interval
- the third time interval when the target communication mode is the first communication mode, the sending time of the first information is located in the third time interval, and the time starting point of the third time interval is the first time
- the start/end moment of the unit wherein the first information includes feedback information from a first device including at least part of the backscattering device that received the first control command;
- the fourth time interval the time interval between the time when the same backscattering device receives the first control command and the time when feedback information is sent is less than or equal to the fourth time interval.
- the first parameter includes the number of rounds of inventory N, and N is greater than 1, it is used to control the reverse
- the control command to the scattering device includes an inventory round identifier, which indicates that the control command is for the nth round of inventory, where n is a positive integer less than or equal to N.
- the terminal 1600 provided by the embodiment of the present application can perform various processes performed by the backscatter communication configuration device 1400 as shown in Figure 14, and can achieve the same beneficial effects. To avoid duplication, the details are not repeated here.
- An embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface being used to send first configuration information and perform backscattering communication according to the first configuration information; wherein, the third A configuration message is used to indicate any of the following:
- the target communication mode of backscatter communication is the target communication mode of backscatter communication
- This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
- Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
- the embodiment of the present application also provides a network side device.
- the network side device 1700 includes: an antenna 1701, a radio frequency device 1702, a baseband device 1703, a processor 1704 and a memory 1705.
- Antenna 1701 is connected to radio frequency device 1702.
- the radio frequency device 1702 receives information through the antenna 1701 and sends the received information to the baseband device 1703 for processing.
- the baseband device 1703 processes the information to be sent and sends it to the radio frequency device 1702.
- the radio frequency device 1702 processes the received information and then sends it out through the antenna 1701.
- the method performed by the network side device in the above embodiment can be implemented in the baseband device 1703, which includes a baseband processor.
- the baseband device 1703 may include, for example, at least one baseband board, which is provided with multiple chips, as shown in FIG.
- the program executes the operations of the network side device shown in the above method embodiment.
- the network side device may also include a network interface 1706, which is, for example, a Common Public Radio Interface (CPRI).
- CPRI Common Public Radio Interface
- the network side device 1700 in the embodiment of the present application also includes: instructions or programs stored in the memory 1705 and executable on the processor 1704.
- the processor 1704 calls the instructions or programs in the memory 1705 to execute the various operations shown in Figure 12
- the method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.
- Embodiments of the present application also provide a readable storage medium, with programs or instructions stored on the readable storage medium.
- the program or instructions are executed by the processor, the method embodiments shown in Figure 7, Figure 9 or Figure 10 are implemented. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
- the processor is the processor in the terminal described in the above embodiment.
- the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
- An embodiment of the present application further provides a chip.
- the chip includes a processor and a communication interface.
- the communication interface and The processor is coupled, and the processor is used to run programs or instructions to implement each process of the method embodiment shown in Figure 7, Figure 9 or Figure 10, and can achieve the same technical effect. To avoid repetition, it will not be repeated here. Repeat.
- chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
- Embodiments of the present application further provide a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement Figures 7 and 9 Or each process of the method embodiment shown in Figure 10, and can achieve the same technical effect, so to avoid repetition, they will not be described again here.
- An embodiment of the present application also provides a wireless communication system, including: a terminal, a network side device and a backscattering device.
- the network side device can be used to perform the steps of the method embodiment shown in Figure 7; the backscattering device The device can be used to perform the steps of the method embodiment shown in Figure 9; the terminal can be used to perform the steps of the method embodiment shown in Figure 10.
- the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
- the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
- the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.
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Abstract
本申请公开了一种反向散射通信配置方法、装置、网络侧设备和终端,属于通信技术领域,本申请实施例的反向散射通信配置方法包括:网络侧设备发送第一配置信息;所述网络侧设备按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:所述反向散射通信的目标通信模式;所述目标通信模式和第一参数,所述第一参数为与所述目标通信模式对应的相关通信参数。
Description
相关申请的交叉引用
本申请主张在2022年06月09日在中国提交的中国专利申请No.202210652034.3的优先权,其全部内容通过引用包含于此。
本申请属于通信技术领域,具体涉及一种反向散射通信配置方法、装置、网络侧设备和终端。
反向散射通信(Backscatter Communication,BSC)是反向散射通信设备利用其它设备或者环境中的射频信号进行信号调制来传输自己信息,传统的反向散射通信系统中包含阅读器(Reader)和标签(Tag),其中,Reader用于发送信号,Tag用于反射信号。
在相关技术中,第5代(5th Generation,5G)新空口(New Radio,NR)中支持的反向散射通信系统相对于传统的反向散射通信系统而言,增加了新的终端,从而产生了新的通信场景,使得网络侧设备、终端以及反向散射设备之间的信号传输路径、信号发送时间等可能存在多种选择,这就造成网络侧设备、终端以及反向散射设备之间可能存在反向散射传输的通信模式不一致的问题,会降低反向散射通信的性能。
发明内容
本申请实施例提供一种反向散射通信配置方法、装置、网络侧设备和终端,使得网络侧设备能够配置终端和/或反向散射设备的通信模式以及相关参数,使得网络侧设备、终端以及反向散射设备能够基于一致的通信模式和相关参数来执行反向散射通信,提升了反向散射通信的性能。
第一方面,提供了一种反向散射通信配置方法,所述方法包括:
网络侧设备发送第一配置信息;
所述网络侧设备按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第二方面,提供了一种反向散射通信配置装置,用于网络侧设备,所述装置包括:
第一发送模块,用于发送第一配置信息;
第一执行模块,用于按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第三方面,提供了一种反向散射通信配置方法,该方法包括:
反向散射设备接收来自网络侧设备的第一配置信息,或接收来自终端的第三配置信息;
所述反向散射设备按照所述第一配置信息或所述第三配置信息执行反向散射通信;
其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
第四方面,提供了一种反向散射通信配置装置,用于反向散射设备,所述装置包括:
第一接收模块,用于接收来自网络侧设备的第一配置信息,或用于接收来自终端的第三配置信息;
第二执行模块,用于按照所述第一配置信息或所述第三配置信息执行反向散射通信;
其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
第五方面,提供了一种反向散射通信配置方法,该方法包括:
终端接收第一配置信息;
所述终端按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第六方面,提供了一种反向散射通信配置装置,用于终端,所述装置包括:
第二接收模块,用于接收第一配置信息;
第三执行模块,用于按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第八方面,提供了一种网络侧设备,该网络侧设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第九方面,提供了一种反向散射设备,该反向散射设备包括处理器和存储器,所述存
储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第三方面所述的方法的步骤。
第十方面,提供了一种终端,该终端包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第五方面所述的方法的步骤。
第十一方面,提供了一种网络侧设备,包括处理器及通信接口,所述通信接口用于发送第一配置信息,以及按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第十二方面,提供了一种终端,包括处理器及通信接口,所述通信接口用于接收第一配置信息,以及按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
第十三方面,提供了一种无线通信系统,包括:终端、网络侧设备和反向散射设备,所述网络侧设备可用于执行如第一方面所述的反向散射通信配置方法的步骤;所述反向散射设备可用于执行如第三方面所述的反向散射通信配置方法的步骤;所述终端可用于执行如第五方面所述的反向散射通信配置方法的步骤。
第十四方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第三方面所述的方法的步骤,或者实现如第五方面所述的方法的步骤。
第十五方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的方法,或实现如第三方面所述的方法,或实现如第五方面所述的方法。
第十六方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第三方面或第五方面所述的反向散射通信配置方法的步骤。
在本申请实施例中,网络侧设备可以向终端和反向散射设备发送第一配置信息,以使网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致;或者,网络侧设备可以向终端发送第一配置信息,由终端根据第一配置信息向反向散射设备发送第三配置信息,此时,终端可以根据第一配置信息确定反向散射通信的目标通信模式和相关参数,反向散射设备可以根据该第三配置信息确定反向散射通信的目标通信模式
和相关参数,其同样能够使网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致。这样,在网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致后,能够基于一致的通信模式以及相关参数执行反向散射通信,提升了反向散射通信的性能。
图1是本申请实施例能够应用的一种无线通信系统的结构示意图;
图2是Tag和阅读器的交互过程示意图;
图3是Tag和阅读器之间传输的信号的示意图;
图4是Tag和阅读器之间的信息传输示意图;
图5是Tag接收和发送数据的流程示意图;
图6是查询和接入单个Tag的流程示意图;
图7是本申请实施例提供的第一种反向散射通信配置方法的流程图;
图8a是第二模式下的场景示意图;
图8b是第一模式下的场景示意图之一;
图8c是第一模式下的场景示意图之二;
图8d是第一模式下的场景示意图之三;
图9是本申请实施例提供的第二种反向散射通信配置方法的流程图;
图10是本申请实施例提供的第三种反向散射通信配置方法的流程图;
图11a是本申请实施例提供的一种反向散射通信配置方法中的信息交互示意图之一;
图11b是本申请实施例提供的一种反向散射通信配置方法中的信息交互示意图之二;
图11c是本申请实施例提供的一种反向散射通信配置方法中的信息交互示意图之三;
图11d是本申请实施例提供的一种反向散射通信配置方法中的信息交互示意图之四;
图12是本申请实施例提供的第一种反向散射通信配置装置的结构示意图;
图13是本申请实施例提供的第二种反向散射通信配置装置的结构示意图;
图14是本申请实施例提供的第三种反向散射通信配置装置的结构示意图;
图15是本申请实施例提供的一种通信设备的结构示意图;
图16是本申请实施例提供的一种终端的结构示意图;
图17是本申请实施例提供的一种网络侧设备的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-Carrier Frequency Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(Ultra-Mobile Personal Computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(Augmented Reality,AR)/虚拟现实(Virtual Reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment,VUE)、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(Personal Computer,PC)、柜员机或者自助机等终端侧设备,可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点、无线保真(Wireless Fidelity,WiFi)节点等,基站可被称为节点B、演进节点B(Evolved Node B,eNB)、接入点、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point,TRP)或所述领域中其他某个合适的术语,只要达到相同的技术效果,
所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access And Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy And Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM)、统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized Network Configuration,CNC)、网络存储功能(Network Repository Function,NRF)、网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
反向散射通信BSC是指反向散射通信设备利用其它设备或者环境中的射频信号进行信号调制来传输自己信息。其中,反向散射通信设备,可以是:
1)传统射频识别技术(Radio Frequency Identification,RFID)中的反向散射通信设备,一般是一个标签(Tag),属于无源物联网(Internet Of Things,Iot)设备(即Passive-Iot),
2)半无源(Semi-Passive)的Tag,这类Tag的下行接收或者上行反射具备一定的放大能力;
3)具备主动发送能力的Tag(Active Tag),这类终端可以不依赖对入射信号的反射向Reader发送信息。
例如:如图2所示,以无源Tag为例,阅读器(Reader)可以向Tag发送控制命令和连续波(Continuous Wave,CW)信号,Tag可以根据该控制命令执行操作,且将连续波信号作为激励源来进行反向散射,以向Reader反馈信息。
Tag进行信息反馈的一种简单的实现方式为:如图3所示,在Tag需要发送‘1’时,Tag对入射载波信号进行反射,在Tag需要发送‘0’时不进行反射,则Reader能够根据接收到的反射信号与发射信号进行比较,得到Tag的反馈信息。
具体地,反向散射通信设备通过调节其内部阻抗来控制电路的反射系数Γ,从而改变入射信号的幅度、频率、相位等,实现信号的调制。其中信号的反射系数可表征为:
其中,Z0为天线特性阻抗,Z1是负载阻抗。假设入射信号为Sin(t),则输出信号为因此,通过合理的控制反射系数可实现对应的幅度调制、频率调制或相位调制。
此外,如图4所示,上述Reader可以与Tag进行信息交互,以对Tag进行如下控制:
1)选择(Select):读取器为后续盘点选择标签群或以加密方式质询(Challenge)标签群,以进行后续身份验证的过程。其中,Select控制包括Select命令和Challenge命令。
2)盘点(Inventory):读取器识别标签的过程。读取器通过在四个会话中的一个会话中传输查询(Query)命令来开始一轮盘点。可能有一个或多个标签对Query命令进行应答。若读取器检测到单个标签的应答,则可以从该标签请求协议控制符(Protocol Control word,PC)、可选扩展协议控制符(Extended Protocol Control word,XPC)、电子商品码(Electronic Product Code,EPC)和16位循环冗余校验码(16Bits Cyclic Redundancy Check,CRC-16)。其中,一次只能在一个会话中进行一轮盘点操作,一轮盘点可以包含多个控制命令。
3)访问(Access):读取器与单个标签交互(如:读、写、验证或以其他方式的交互)的过程。读取器在访问之前对标检进行单独识别和唯一识别。其中,Access包含多个命令。
Reader对Tag进行操作的指令可以携带盘点周期(Inventory round)、Q值和时隙(Slot),其定义如下表1所示:
表1
Reader对Tag的操作类型即控制指令的定义如下表2所示:
表2
而Tag可以处于如下表3中的任一种状态:
表3
在相关技术中,超高频(Ultra High Frequency,UHF)RFID的协议设计在盘点模式下,要求读取器发送查询指令(Query)后标签(Tag)响应回应(Reply),即产生一个16-bit的随机数给读取器。然后读取器将该序列通过ACK指令发给Tag后,Tag将相关的数据发送给阅读器。
例如:如图5和图6所示,读取器与Tag进行数据交互的流程主要包括以下步骤:
步骤1、读取器发出Query、QueryAdjust、QueryRep命令
步骤2、有两种可能的结果(如图6所示实施例中假设为第一种结果):
1)时隙=0:标签反馈RN16进行答复;
2)时隙≠0:无回复;
步骤3、读取器通过使用相同的RN16发出ACK,来告知标签接收到反向散射信号反馈;
步骤4、有两种可能的结果(如图6所示实施例中假设为第一种结果):
1)有效RN16:标签反馈{PC/XPC,EPC}进行响应;
2)无效RN16:无回复;
步骤5、读取器发出包含相同RN16的Req_RN命令;
步骤6、有两种可能的结果(如图6所示实施例中假设为第一种结果):
1)有效RN16:标签反馈{handle}进行响应;
2)无效RN16:无回复;
步骤7、读取器访问标签。每个访问命令都使用handle作为参数;
步骤8、标签验证handle。
需要说明的是,如图6所示附图中,省略了CRC-16的交互过程,且图6所示实施例中的各个命令的含义可以参考表1至表3,在此不再赘述。
在相关技术中,5G新空口(New Radio,NR)中支持的反向散射通信系统相对于传统的反向散射通信系统而言,增加了新的终端,从而产生了新的通信场景,使得网络侧设备、终端以及反向散射设备之间的信号传输路径、信号发送时间等可以有至少两种选择。本申请实施例提供的反向散射通信配置方法针对终端参与的backscatter通信场景中,通过网络侧设备来配置不同的backscatter通信模式和不同通信模式下所需的通信参数提,以使网络侧设备、终端和反向散射设备在反向散射通信采用的通信模式以及相关参数达成一致,这样能够基于一致的通信模式以及相关参数执行反向散射通信,提升了反向散射通信的性能。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的反向散射通信配置方法、装置、网络侧设备、终端和反向散射设备进行详细地说明。
请参阅图7,本申请实施例提供的第一种反向散射通信配置方法,其执行主体可以是网络侧设备,该网络侧设备可以是如图1所示实施例中列举的各种网络侧设备12,为了便于说明,本申请实施例中以网络侧设备是基站为例进行举例说明,在此不构成具体限定。
如图7所示,该网络侧设备执行的反向散射通信配置方法可以包括以下步骤:
步骤701、网络侧设备发送第一配置信息,其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
在实施中,网络侧设备可以向终端和反向散射设备(假设是Tag)中的至少一个发送第一配置信息。其中,向Tag发送的配置信息可以携带在控制命令中,向终端发送的配置信息可以携带在无线资源控制(Radio Resource Control,RRC)信令、系统信息、媒体接入控制层控制单元(Medium Access Control Element,MAC CE)、下行控制信息(Downlink Control Information,DCI)等信号中。
例如:在如图8a所示的蜂窝反向散射-无用户设备(User Equipment,UE)辅助的场景下,基站可以与Tag直接进行反向散射通信,此时,基站可以向Tag发送第一配置信息,以使基站和Tag都按照第二模式执行反向散射通信,其中,在所述第二模式下,基站与Tag直接进行反向散射通信,而不需要通过终端辅助执行所述反向散射通信。
例如:在如图8b、图8c和图8d所示的蜂窝反向散射-有UE辅助的场景下,基站可
以向Tag和UE发送第一配置信息,以使基站、UE和Tag都按照第一模式执行反向散射通信,其中,在所述第一模式下,UE能够辅助基站与Tag进行反向散射通信。例如:如图8b所示的UE辅助基站接收来自Tag的反馈信息,和/或,如图8c所示的UE辅助基站向Tag发送连续波CW信号和/或控制指令,和/或,如图8d所示的UE辅助基站发送CW,并接收来自Tag的反馈信息,该UE还根据接收的Tag反馈信息向Tag发送第二控制命令(ACK/NACK)。
需要说明的是,在实施中,在终端作为反馈信息的接收端的情况下,该终端可能将接收的Tag反馈信息进行整理,得到第一信息,并向基站上报该第一信息,以使基站根据该第一信息向Tag发送第二控制命令(ACK/NACK)。
此外,在实际应用中,在如图8b、图8c和图8d所示的蜂窝反向散射-有UE辅助的场景下,基站可以UE发送第一配置信息,由UE根据该第一配置信息来向Tag发送对应的第三配置信息,例如:网络侧设备可以给终端配置携带第三配置信息的控制命令的相关信息,以使终端向Tag发送携带第三配置信息的控制命令。其同样可以实现使基站、UE和Tag都按照第一模式执行反向散射通信,在此不作具体限定。
步骤702、所述网络侧设备按照所述第一配置信息执行反向散射通信。
在实施中,网络侧设备按照所述第一配置信息执行反向散射通信可以是:在第一配置信息指示的反向反射通信的目标通信模式为第一模式的情况下,通过终端辅助执行反向散射通信;在第一配置信息指示的反向反射通信的目标通信模式为第二模式的情况下,不通过终端辅助便可以与反向散射设备进行反向散射通信,也就是说,在第二模式下,网络侧设备直接与反向散射设备进行反向散射通信。
在实施中,上述第一参数可以包括用于控制网络侧设备、反向散射设备和终端中的至少一个工作于目标通信模式下所需的通信参数,例如:第一参数可以指示某功能(发送第一信号、发送控制命令以及接收反馈信息等)的执行设备是终端还是基站,以及指示某功能的执行时间节点等。这样,网络侧设备、反向散射设备和终端在进行反向散射通信的过程中,能够明确获知各自需要执行的功能,以及明确各个功能以什么顺序执行等,能够提升反向散射通信的性能。
作为一种可选的实施方式,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:
第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;
第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;
第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
选项一,第一指示信息可以指示发送第一信号的设备是网络侧设备还是终端,该第一信号可以是能够为反向散射设备提供激励源的任意信号,为了便于说明,本申请实施例中以第一信号为连续波CW信号为例,进行举例说明,在此不构成具体限定。
选项二,第二指示信息可以指示向反向散射设备发送控制命令的设备是网络侧设备还是终端,该控制命令可以包括以下至少一项:
第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
其中,选择命令可以包括:select命令、challenge命令和排序(sort)命令。质询命令包括:Query命令、QueryAdjust命令和QueryRep命令。接入命令包括:Req_RN命令、Read命令、Write命令、Lock命令、Kill命令、Access命令、BlockWrite命令、BlockErase命令、BlockPermalock命令、Authenticate命令、ReadBuffer命令、SecureComm命令、AuthComm命令、KeyUpdate命令、Untraceable命令、FileOpen命令、FileList命令、FilePrivilege命令、FileSetup命令和TagPrivilege命令。
上述各控制命令的含义可以参考表2中的解释,在此不再赘述。
在实施中,接收到上述第一控制命令的反向散射设备可以执行相应的操作,并基于第一信号的激励源反馈第一控制命令的执行结果或查询结果,为了便于说明,将反向散射设备执行第一控制命令后反馈的信息称之为反馈信息。该反馈信息的接收端可以由第三指示信息指示为网络侧设备或终端,此时,网络侧设备或终端还可以对该反馈信息进行接收应答,即向反向散射设备发送第二控制命令,以通知反向散射设备是否接收到其反馈的反馈信息。该第二控制命令可以包括ACK命令和NACK命令,例如:假设网络侧设备作为反馈信息的接收端和第二控制命令的发送端,则网络侧设备在接收到某一Tag的反馈信息的情况下,可以向该Tag发送肯定确认(Acknowledgement,ACK)命令,以通知该Tag,其发出的反馈信息被正确接收了;在网络侧设备在向Tag发出第一控制命令后的预设时长内没有接收到该Tag的反馈信息的情况下,网络侧设备可以向该Tag发送否定确认(Negative Acknowledgement,NACK)命令,以通知该Tag,其发出的反馈信息未被正确接收,以便Tag确定是否需要重新执行第一控制命令和/或重新发送反馈信息。
当然,在实施中,第一控制命令和第二控制命令可以由相同或者不同的设备发送,例如:第一控制命令和第二控制命令都由网络侧设备发送,终端则负责接收来自Tag的反馈信息,并向网络侧设备发送根据反馈信息整理得到的第一信息;或者,第一控制命令和第二控制命令都由终端发送;或者,由网络侧设备发送第一控制命令,由终端接收反馈信息并发送第二控制命令;或者,由终端发送第一控制命令,由网络侧设备接收反馈信息并发送第二控制命令等,在此并不穷举。
选项三,第三指示信息可以指示接收反向散射设备发送的反馈信息的设备是网络侧设备还是终端。
可选地,在所述第三指示信息指示的所述反馈信息的接收端与所述反馈信息的处理端
不同的情况下,所述第三指示信息还用于指示所述反馈信息的接收端向所述反馈信息的处理端发送第一信息,所述第一信息包括所述反馈信息的接收端接收的第一设备的反馈信息,其中,所述第一设备包括接收到所述控制命令的至少部分反向散射设备。
在实施中,上述反馈信息的处理端可以是第二控制命令的发送端,该第二控制命令的发送端需要根据获取到的反馈信息来确定向哪些反向散射设备发送第二控制命令,以及确定是发送ACK命令还是NACK命令。
本实施方式中,若反馈信息的接收端和第二控制命令的发送端不是同一设备,则反馈信息的接收端可以根据第三指示信息向第二控制命令的发送端发送第一信息,该第一信息可以包括反馈信息的接收端所接收到的反馈信息。
需要说明的是,在实际应用中,上述第一设备可以是接收到第一控制命令的反向散射设备中执行了第一控制命令并反馈了反馈信息的至少部分。
在实施中,反向散射通信系统中的多个Tag之间采用竞争性通信过程:
在相关技术中的反向散射通信系统中,Reader在同一个时刻通常只能接收一个Tag的反向散射信号。例如在RFID的盘点流程中,Reader发送控制命令开启对多个Tag的盘点流程时,会指示一个数值Q。每一个Tag分别在本地从{0,…,2Q-1}的数值范围中随机选一个数值q。当前随机数值为0的Tag会响应Reader的控制命令,进行反向散射信号的传输。而当前的随机数值不为0的Tag暂不进行反向散射信号的传输。Reader在完成和随机数值为0的Tag的通信之后,可以继续发送控制命令(例如:QueryRep命令),例如,指示Tag对生成的随机数减1,随机数值减为0的Tag响应该控制命令,进行反向散射传输。此时,上述第一设备可以包括在预设时间(例如:网络侧设备通过第一参数配置的时间间隔)内进行了进行反向散射信号的Tag。
上述流程属于随机多址接入的流程,存在多个Tag本地产生相同的随机数的可能,而导致在某个时刻多个Tag同时进行反向散射传输的可能,这种情况下,Reader大概率无法检测出任何Tag的反向散射信号,且不会给Tag接收到反向散射信号反馈。这种情况下,这些Tag会继续接收Reader的控制命令,等待新的反向散射传输的机会。所以,Reader在发送控制命令时,应选取合理的Q值,并可以在盘点过程中逐渐调整Q值,以降低和多个Tag通信过程中的冲突概率。当然这也意味着和多个Tag完成通信的时间拉长。
本实施方式中,可以通过上述第一指示信息、第二指示信息和第三指示信息中的至少一项来指示终端和网络侧设备在反向散射通信中的行为。
需要说明的是,上述控制命令和第一信号时域不重叠。通常,在每一个控制命令的发送时刻后,可以发送第一信号,以使Tag在接收并执行控制命令后,能够将第一信号作为激励源进行反向散射。
可选地,在所述第三指示信息还用于指示终端向网络侧设备发送第一信息的情况下,所述第一参数还包括:
第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数
为所述网络侧设备接收所述第一信息时使用的传输参数。
其中,上述第二配置信息可以是网络侧设备接收所述第一信息时使用的传输参数,即终端发送第一信息时使用的传输参数,例如:传输第一信息的格式、物理信道映射方式、物理信道资源、传输方式(例如:使终端每接收到一个Tag的反馈信息,便立即将该反馈信息上报给网络侧设备,或者,使终端将预设时间段内接收到的全部Tag的反馈信息整理成第一信息后上报给网络侧设备)等。
在实施中,上述第二配置信息可以携带于RRC信令、MAC CE或DCI命令中,在此不再赘述。或者,可以预先约定多组第二配置信息以及每一组第二配置信息的标识信息(如:编号),其中,每一组第二配置信息包括相应的发送内容、格式、物理信道映射方式和物理信道资源等,网络侧设备在配置终端发送第一信息使用的传输参数时,可以向终端指示某一第二配置信息的标识信息即可。
本实施方式中,网络侧设备还可以配置终端上报第一信息的传输参数,使得第一信息的传输性能更加可靠。
作为一种可选的实施方式,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:
所述网络侧设备向所述反向散射设备发送所述第一控制命令;
所述网络侧设备接收来自所述反向散射设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
本实施方式中,网络侧设备作为控制命令的发送端,在反向散射通信中,向反向散射设备发送第一控制命令。
作为一种可选的实施方式,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:
所述网络侧设备接收来自第一设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备,所述第一信息包括所述终端接收的所述第一设备的反馈信息;
所述网络侧设备向所述第一设备发送所述第二控制命令。
本实施方式中,网络侧设备作为控制命令的发送端,在反向散射通信中,在获取到第一设备的反馈信息后,向该反馈信息的发送端(反向散射设备)发送第二控制命令,以通过第二控制命令告知反馈信息的发送端(反向散射设备)已成功接收到其反馈信息,这样,未接收到第二控制命令的反向散射设备可以根据未接收到第二控制命令而确定其反馈信息未被网络侧设备成功接收,从而可以重新执行第一控制命令和/或重新发送反馈信息,在此不作具体限定。
需要说明的是,在实际应用中,若第二控制命令的发送端为终端,则终端可以在接收来自所述反向散射设备的反馈信息后,根据该反馈信息来发送第二控制命令,此时,终端可以不向网络侧设备发送第一信息。甚至,在反馈信息的接收端为网络侧设备的情况下,
网络侧设备还可以向终端发送第一信息,在此不再赘述。
作为一种可选的实施方式,在所述目标通信模式为所述第二模式的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:
所述网络侧设备向反向散射设备发送第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
所述网络侧设备接收第一设备的反馈信息,所述第一设备包括所述反向散射设备的至少部分;
所述网络侧设备向所述第一设备发送第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
本实施方式下,在第二模式下,网络侧设备不需要终端辅助,便可以执行反向散射通信。但是,网络侧设备在执行反向散射通信的过程中,仍然可以利用转发设备(例如:终端)来转发与反向散射设备之间的信息。
可选地,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:
第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
其中,所述第四指示信息可以用于指示以下任一项:
所述网络侧设备与反向散射设备直接进行所述反向散射通信,此时,没有其他设备参数反向散射通信;
所述网络侧设备与反向散射设备通过转发设备进行所述反向散射通信,此时,转发设备可以对网络侧设备与反向散射设备之间的交互信息进行转发(例如:转发设备将反向散射设备反馈的反馈信息转发给网络侧设备)。
本实施方式下,可以通过第四指示信息来指示转发设备和Tag是否需要对网络侧设备和Tag之间的交互进行转发。
可选地,所述反馈信息包括以下至少一项:
反向散射设备的临时标识(如RN8、RN16、handle等)、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
1)通过上述临时标识,可以标识反馈信息是哪一个反向散射设备发出的。
2)通过上述盘点回合数,可以标识该反馈信息是对哪一轮盘点的反馈;
3)通过上述协议控制符PC、扩展协议控制符XPC和电子商品码EPC,可以标识反向散射设备所附属的设备信息或商品信息。
可选地,所述第一参数还包括以下至少一项:
反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;
盘点的轮数N,N为正整数;
每一轮盘点的反向散射设备数M,M为正整数;
目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;
目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
选项一,上述反向散射设备的传输参数可以用于控制反向散射设备向反馈信息的接收端发送反馈信息时使用的传输参数,其中,编码方式、调制频率、数据速率和Q值的定义与相关技术中反向散射通信中的编码方式、调制频率、数据速率和Q值的定义相同,在此不再赘述。
选项二,上述盘点轮数N可以用于指示控制指令的发送端会发起N轮盘点(query),N可以大于或者等于1。
可选地,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
本实施方式中,控制命令的发送端每次盘点Tag的时候,可以在盘点命令中携带盘点标识,以表明当前是第几轮盘点。
当然,在实际应用中,还可以通过目标时间线反映当前是第几轮盘点,在此不再赘述。
选项三,上述每一轮盘点的反向散射设备数M,可以表示每个盘点命令能触发M个Tag的盘点流程,在实施中,不同的N值可以与相同或者不同的M值对应。
当然,N和M可以是相互独立的,实际的反向散射通信中可以只配置N和M中的一个,例如:若未配置N,则默认只进行一轮盘点。
在实际应用中,N和M可以是显示指示的,或者预定义的第一模式和第二模式各自对应的N和M,当网络侧设备指示反向散射通信的目标通信模式为第一模式或第二模式的情况下,便可以隐式的确定目标通信模式下的M和/或N的值。
在配置了N和M的情况下,反馈信息的接收端最多能够接收N*M个Tag的反馈信息,此时,若反馈信息的接收端与第二控制命令的发送端不同,则反馈信息的接收端发送给第二控制命令的发送端的第一信息中,最多可以包括N*M个Tag的反馈信息。
选项四,上述目标时间线可以包括反向散射通信中的至少一个信号传输节点的时间信息,例如:控制命令的发送时间、第一信号的发送时间、第一信息的发送时间、反馈信息的发送时间等。
在实施中,上述时间信息中的至少一项可以由网路侧设备显式地指示,也可以预先将第一模式和第二模式与各自的时间信息关联,这样,在网络侧设备指示目标通信模式时,便可以根据该目标通信模式所关联的时间信息来确定上述目标时间线。其中,以盘点流程为例,在不同的通信模式下,盘点流程互不相同,则网络侧设备可以为不同的通信模式配置与其盘点流程相匹配的时间信息。
例如:在UE辅助的第一模式下,目标时间线可以包括第一信息的发送时间、command
的发送时间、CW的发送时间以及Tag反馈信息的时间。非UE辅助第二模式下,目标时间线可以包括网络侧设备发送CW和command的时间以及Tag反馈信息的时间。
可选地,所述时间信息包括以下至少一项:
第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;
第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;
第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;
第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
以如图11a所示交互示意图为例,第一时间间隔表示T1、第二时间间隔表示T2、第三时间间隔表示T3、第四时间间隔表示t1。通过上述第一时间间隔表示T1、第二时间间隔表示T2、第三时间间隔表示T3、第四时间间隔表示t1,可以明确反向散射通信中各个信息或信号传输节点的时间顺序,能够降低反向散射通信的时延。
选项五,目标资源信息可以包括发送和/或接收第一信息、command、CW以及反馈信息中的至少一项的时频资源信息。例如:假设网络侧设备指示终端发送command,则上述目标资源信息可以包括所述终端发送command时使用的频域和时域的资源信息。假设网络侧设备指示终端接收反向散射设备的反馈信息,则上述目标资源信息可以包括所述终端接收反馈信息时使用的频域和时域的资源信息。
在本申请实施例中,网络侧设备可以向终端和反向散射设备发送第一配置信息,以使网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致;或者,网络侧设备可以向终端发送第一配置信息,由终端根据第一配置信息向反向散射设备发送第三配置信息,此时,终端可以根据第一配置信息确定反向散射通信的目标通信模式和相关参数,反向散射设备可以根据该第三配置信息确定反向散射通信的目标通信模式和相关参数,其同样能够使网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致。这样,在网络侧设备、终端和反向散射设备对反向散射通信采用的通信模式以及相关参数达成一致后,能够基于一致的通信模式以及相关参数执行反向散射通信,提升了反向散射通信的性能。
请参阅图9,是本申请实施例提供的第二种反向散射通信配置方法,如图9所示反向散射通信配置方法与如图7所示反向散射通信配置方法的不同之处在于:如图9所示反向散射通信配置方法的执行主体是反向散射设备(例如:Tag),而如图7所示反向散射通信
配置方法的执行主体是网络侧设备,如图9所示,该反向散射设备执行的反向散射通信配置方法可以包括以下步骤:
步骤901、反向散射设备接收来自网络侧设备的第一配置信息,或接收来自终端的第三配置信息。
步骤902、所述反向散射设备按照所述第一配置信息或所述第三配置信息执行反向散射通信;其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
在实施中,上述第一配置信息与如图7所示方法实施例中的网络侧设备发送的第一配置信息具有相同含义和作用,在此不再赘述。
此外,上述第三配置信息可以是如图7所示方法实施例中,在网络侧设备向终端发送第一配置信息后,由终端根据该第一配置信息来确定并向反向散射设备发送第三配置信息。该第三配置信息的内容可以与第一配置信息相同,或者,第一配置信息可以是用于配置终端和反向散射设备的行为的配置信息,第三配置信息可以是用于配置反向散射设备的行为的配置信息,该第一配置信息和第三配置信息都可以实现使反向散射设备按照目标通信模式执行反向散射通信,在此不再赘述。
可选地,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述反向散射设备通过终端辅助执行所述反向散射通信;
第二模式,在所述第二模式下,所述反向散射设备不通过终端辅助执行所述反向散射通信。
可选地,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间。
可选地,所述反向散射设备接收来自网络侧设备的第一配置信息,或接收来自终端的第三配置信息,包括:
所述反向散射设备接收来自网络侧设备或终端的第一控制命令,其中,来自所述网络侧设备的所述第一控制命令包括所述第一配置信息,或者来自所述终端的所述第一控制命令包括所述第三配置信息;
所述反向散射设备按照所述第一配置信息或所述第三配置信息执行反向散射通信,包括:
所述反向散射设备按照所述第一配置信息或所述第三配置信息执行所述第一控制命令,并发送执行所述第一控制命令的反馈信息。
在实施中,第一参数还可以指示反馈信息的接收端为网络侧设备或终端,则所述反向散射设备按照所述第一配置信息或所述第三配置信息执行所述第一控制命令,并发送执行所述第一控制命令的反馈信息,可以是反向散射设备在执行第一控制命令后,向网络侧设备指示的反馈信息的接收端发送上述反馈信息。
本申请实施例提供的第二种反向散射通信配置方法,与如图7所示方法实施例相对应,且能够取得相似的有益效果,为避免重复,在此不再赘述。
请参阅图10,是本申请实施例提供的第三种反向散射通信配置方法的流程图,如图10所示方法实施例与如图7所示方法实施例的不同之处在于,如图10所示方法实施例的执行主体是终端,而如图7所示方法实施例的执行主体是网络侧设备,如图10所示,该终端执行的反向散射通信配置方法可以包括以下步骤:
步骤1001、终端接收第一配置信息;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
步骤1002、所述终端按照所述第一配置信息执行反向散射通信。
可选地,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述终端辅助网络侧设备和反向散射设备执行所述反向散射通信;
第二模式,在所述第二模式下,所述终端不辅助网络侧设备和反向散射设备执行所述反向散射通信。
其中,在第一模式下,所述终端按照所述第一配置信息执行反向散射通信可以是:终端辅助网络侧设备在反向散射通信中执行以下至少一项:发送第一信号、发送控制命令、接收反馈信息、整合并上报反馈信息等。
在第二模式下,所述终端按照所述第一配置信息执行反向散射通信可以是:终端将Tag反射的反馈信息转发给网络侧设备,而不辅助网络侧设备和Tag进行反向散射通信。或者该终端也可以不转发Tag的反馈信息给网络侧设备,即网络侧设备直接从Tag接收反馈信息,在此不作赘述。
可选地,在所述目标通信模式为所述第一模式的情况下,所述方法还包括:
所述终端根据所述第一配置信息确定第三配置信息;
所述终端向所述反向散射通信相关的反向散射设备发送所述第三配置信息,所述第三配置信息用于指示所述反向散射设备在目标通信模式下的传输参数。
其中,第一配置信息与第三配置信息之间的关系与如图9所示方法实施例中的第一配置信息与第三配置信息之间的关系相同,在此不再赘述。
本实施方式中,网络侧设备可以只向终端配置目标通信模式以及该目标通信模式下的通信参数,由终端根据网络侧设备的配置来确定如何配置反向散射设备在该目标通信模式下的传输参数。
可选地,所述传输参数包括以下至少一项:
编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间,所述Q值用于控制所述反向散射设备的响应概率。
可选地,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:
第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;
第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;
第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
可选地,所述控制命令包括以下至少一项:
第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
可选地,在所述第二指示信息指示所述控制命令的发送端为所述终端的情况下,所述终端按照所述第一配置信息进行反向散射通信,包括:
所述终端向所述反向散射设备发送所述第一控制命令;
所述终端接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
可选地,在所述第二指示信息指示所述控制命令的发送端为所述终端,且所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,所述终端按照所述第一配置信息进行反向散射通信,包括:
所述终端接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息;
所述终端向所述反向散射设备发送所述第二控制命令。
可选地,在所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,若所述反馈信息的处理端为所述网络侧设备,则所述第三指示信息还用于指示所述终端向所述网络侧设备发送第一信息,所述第一信息包括所述终端接收的第一设备的反馈信息,所述第一设备包括接收到所述控制命令的至少部分反向散射设备;
所述终端按照所述第一配置信息执行反向散射通信,包括:
所述终端接收来自所述第一设备的反馈信息;
所述终端根据接收到的所述反馈信息,确定第一信息;
所述终端向所述网络侧设备发送所述第一信息。
在实施中,在网络侧设备指示进行N轮盘点的情况下,上述第一信息可以是终端对N轮盘点中的反向散射设备反射的全部反馈信息进行整理后得到的信息。
可选地,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:
第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
可选地,所述第四指示信息用于指示以下任一项:
网络侧设备与反向散射设备直接进行所述反向散射通信;
网络侧设备与反向散射设备通过所述终端进行所述反向散射通信,其中,所述终端用于在所述反向散射通信中将所述反向散射设备发送的反馈信息转发给所述网络侧设备。
可选地,所述反馈信息包括以下至少一项:
反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
可选地,所述第一参数还包括以下至少一项:
反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;
盘点的轮数N,N为正整数;
每一轮盘点的反向散射设备数M,M为正整数;
目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;
目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
可选地,所述时间信息包括以下至少一项:
第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;
第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;
第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;
第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
可选地,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
本申请实施例提供的第三种反向散射通信配置方法,与如图7和图9所示方法实施例相对应,且能够取得相似的有益效果,为避免重复,在此不再赘述。
为了便于说明本申请实施例提供的反向散射通信配置方法,以如图11a至图11d所示
信息交互示意图为例,对本申请实施例提供的反向散射通信配置方法进行举例说明:
实施例一
如图11a所示实施例中,网络侧设备(gNB)配置UE辅助的反向散射通信场景(即目标通信模式为第一模式)。该场景下,假设网络侧设备分别向UE和Tag发送第一配置信息。
网络侧设备发送给UE的第一配置信息可以指示以下信息:
1)由网络侧设备发送控制命令(包括:第一控制命令和第二控制命令)和CW,以及各个控制命令和CW的发送时间;
2)进行N轮盘点,每一次盘点M个Tag;
3)由UE接收Tag反馈信息,并根据反馈信息整合得到第一信息,并上报给网络侧设备,上报第一信息时使用的传输信息也由网络侧设备配置;
4)第一时间间隔T1、第二时间间隔T2和第三时间间隔T3。
上述第一时间间隔T1、第二时间间隔T2和第三时间间隔T3的含义可以参见如图7所示方法实施例中的解释,在此不再赘述。
其中,M和N可以是网络显性指示,也可能是有通信模型隐性指示,所述的M和N是互相独立的,且每轮盘点中的M值是可以重新配置的。
以一轮盘点为例,由于该轮盘点中的M个Tag存在竞争关系,竞争失败的Tag就不会反馈RN16信息,最后UE上报的第一信息不一定包括M个Tag。
在实施中,网络侧设备可以通过RRC信令、MAC CE、DCI等信号通知UE上述第一配置信息中的内容。
此外,网络侧设备发送给Tag的第一配置信息可以指示以下信息:
Tag的传输参数,包括:编码方式、调制频率、数据速率、Q值以及反馈信息的反馈时间等;
第四时间间隔t1。
网络侧设备可以通过command的select命令配置Tag上述第一配置信息中的内容。
需要说明的是,图11a中,由gNB发送控制命令和CW,在实际应用中,控制命令和CW的传输资源时域不重叠,如图11a仅作为示例。
此外,如图11a所示实施例中,由gNB发送控制命令和CW,且由终端接收Tag反馈信息并向gNB上报第一信息。
在实际应用中,还可以配置由不同设备(gNB或UE)发command(第一控制命令,第二控制命令)和CW,以及对Tag反馈信息的处理,可以得到不同的通信场景,而且不同通信场景的timeline配置不同,例如:如下图11b所示实施例二。
实施例二
如图11b所示实施例中,网络侧设备(gNB)配置UE辅助的反向散射通信场景(即目标通信模式为第一模式)。该场景下,假设网络侧设备分别向UE和Tag发送第一配置
信息。
网络侧设备发送给UE的第一配置信息可以指示以下信息:
1)目标通信模式为第一模式;
2)由网络侧设备发送第一控制命令和CW;
3)进行N轮盘点,每一次盘点M个Tag;
4)由UE接收Tag反馈信息,并根据反馈信息向Tag发送第二控制命令(ACK/NACK);
5)第一时间间隔T1、第二时间间隔T2和第三时间间隔T3。
上述第一时间间隔T1、第二时间间隔T2和第三时间间隔T3的含义可以参见如图7所示方法实施例中的解释,在此不再赘述。
此外,网络侧设备发送给Tag的第一配置信息可以指示以下信息:
Tag的传输参数,包括:编码方式、调制频率、数据速率、Q值以及反馈信息的反馈时间等;
第四时间间隔t1。
除图11a和图11b所示交互过程之外,网络侧设备还可以配置由终端发送第一控制命令、第二控制命令、CW中的至少一项,和/或,网络侧设备配置由网络侧设备接收Tag反馈信息,在此不再赘述。
实施例三
如图11c所示实施例中,网络侧设备(gNB)配置非UE辅助的反向散射通信场景(即目标通信模式为第二模式)。该场景下,假设网络侧设备分别向UE和Tag发送第一配置信息。
网络侧设备发送的第一配置信息可以指示以下信息:
1)目标通信模式为第二模式;
2)有转发设备(relay)(本实施例中,假设relay是UE,在实施中,该relay也可能是除了UE之外的其他设备,在此不构成限定)参与反向散射通信;
3)由网络侧设备发送控制命令和CW;
4)进行N轮盘点,每一次盘点M个Tag;
5)网络侧设备在收到多轮盘点信息后,然后根据Tag反馈信息进行ACK/NACK;
6)Tag的传输参数,包括:编码方式、调制频率、数据速率、Q值、反馈信息的时间等,其中,有无relay对Tag反馈时间有所影响,也可能影响到M、N或传输参数;
7)第一时间间隔T1、第二时间间隔T2、第三时间间隔T3和第四时间间隔t1。
其中,转发设备(如UE)只对信号起到中继转发的作用,不发挥其他作用。
实施例四
如图11d所示实施例中,网络侧设备(gNB)配置非UE辅助的反向散射通信场景(即目标通信模式为第二模式)。该场景下,假设网络侧设备向Tag发送第一配置信息。
网络侧设备发送的第一配置信息可以指示以下信息:
1)目标通信模式为第二模式;
2)没有转发设备参与反向散射通信;
3)由网络侧设备发送控制命令和CW;
4)进行N轮盘点,每一次盘点M个Tag;
5)网络侧设备在收到多轮盘点信息后,然后根据Tag反馈信息进行ACK/NACK;
6)Tag的传输参数,包括:编码方式、调制频率、数据速率、Q值、反馈信息的时间等;
7)第一时间间隔T1、第二时间间隔T2、第三时间间隔T3和第四时间间隔t1。
本申请实施例提供的反向散射通信配置方法,执行主体可以为反向散射通信配置装置。本申请实施例中以反向散射通信配置装置执行反向散射通信配置方法为例,说明本申请实施例提供的反向散射通信配置装置。
如图12所示,本申请实施例提供的第一种反向散射通信配置装置,可以应用于网络侧设备,如图12所示,该反向散射通信配置装置1200可以包括以下模块:
第一发送模块1201,用于发送第一配置信息;
第一执行模块1202,用于按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
可选的,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述网络侧设备通过终端辅助执行所述反向散射通信;
第二模式,在所述第二模式下,所述网络侧设备不通过终端辅助执行所述反向散射通信。
可选的,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:
第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;
第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;
第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
可选的,在所述第三指示信息指示的所述反馈信息的接收端与所述反馈信息的处理端不同的情况下,所述第三指示信息还用于指示所述反馈信息的接收端向所述反馈信息的处理端发送第一信息,所述第一信息包括所述反馈信息的接收端接收的第一设备的反馈信息,
其中,所述第一设备包括接收到所述控制命令的至少部分反向散射设备。
可选的,所述第一参数还包括:
第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数为所述网络侧设备接收所述第一信息时使用的传输参数。
可选的,所述控制命令包括以下至少一项:
第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
可选的,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,第一执行模块1202,包括:
第一发送单元,用于向所述反向散射设备发送所述第一控制命令;
第一接收单元,用于接收来自所述反向散射设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
可选的,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,第一执行模块1202,包括:
第二接收单元,用于接收来自第一设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备,所述第一信息包括所述终端接收的所述第一设备的反馈信息;
第二发送单元,用于向所述第一设备发送所述第二控制命令。
可选的,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:
第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
可选的,所述第四指示信息用于指示以下任一项:
所述网络侧设备与反向散射设备直接进行所述反向散射通信;
所述网络侧设备与反向散射设备通过转发设备进行所述反向散射通信。
可选的,在所述目标通信模式为所述第二模式的情况下,第一执行模块1202,包括:
第三发送单元,用于向反向散射设备发送第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第三接收单元,用于接收第一设备的反馈信息,所述第一设备包括所述反向散射设备的至少部分;
第四发送单元,用于向所述第一设备发送第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
可选的,所述反馈信息包括以下至少一项:
反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
可选的,所述第一参数还包括以下至少一项:
反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;
盘点的轮数N,N为正整数;
每一轮盘点的反向散射设备数M,M为正整数;
目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;
目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
可选的,所述时间信息包括以下至少一项:
第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;
第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;
第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;
第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
可选的,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
本申请实施例提供的反向散射通信配置装置1200能够执行如图7所示方法实施例中,网络侧设备执行的各个过程,且能够取得相同的有益效果,为避免重复,在此不再赘述。
如图13所示,本申请实施例提供的第二种反向散射通信配置装置,可以应用于反向散射设备,如图13所示,该反向散射通信配置装置1300可以包括以下模块:
第一接收模块1301,用于接收来自网络侧设备的第一配置信息,或用于接收来自终端的第三配置信息;
第二执行模块1302,用于按照所述第一配置信息或所述第三配置信息执行反向散射通信;
其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
可选的,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述反向散射设备通过终端辅助执行所述反向散射通
信;
第二模式,在所述第二模式下,所述反向散射设备不通过终端辅助执行所述反向散射通信。
可选的,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间。
可选的,第一接收模块1301,具体用于:
接收来自网络侧设备或终端的第一控制命令,其中,来自所述网络侧设备的所述第一控制命令包括所述第一配置信息,或者来自所述终端的所述第一控制命令包括所述第三配置信息;
第二执行模块1302,具体用于:
按照所述第一配置信息或所述第三配置信息执行所述第一控制命令,并发送执行所述第一控制命令的反馈信息。
本申请实施例提供的反向散射通信配置装置1300能够执行如图9所示方法实施例中,网络侧设备执行的各个过程,且能够取得相同的有益效果,为避免重复,在此不再赘述。
如图14所示,本申请实施例提供的第三种反向散射通信配置装置,可以应用于终端,如图14所示,该反向散射通信配置装置1400可以包括以下模块:
第二接收模块1401,用于接收第一配置信息;
第三执行模块1402,用于按照所述第一配置信息执行反向散射通信;
其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
可选的,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述终端辅助网络侧设备和反向散射设备执行所述反向散射通信;
第二模式,在所述第二模式下,所述终端不辅助网络侧设备和反向散射设备执行所述反向散射通信。
可选的,在所述目标通信模式为所述第一模式的情况下,反向散射通信配置装置1400还包括:
确定模块,用于根据所述第一配置信息确定第三配置信息;
第二发送模块,用于向所述反向散射通信相关的反向散射设备发送所述第三配置信息,所述第三配置信息用于指示所述反向散射设备在目标通信模式下的传输参数。
可选的,所述传输参数包括以下至少一项:
编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间,所述Q值用于控制所述反向散射设备的响应概率。
可选的,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:
第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;
第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;
第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
可选的,所述控制命令包括以下至少一项:
第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
可选的,在所述第二指示信息指示所述控制命令的发送端为所述终端的情况下,第三执行模块1402,包括:
第五发送单元,用于向所述反向散射设备发送所述第一控制命令;
第五接收单元,用于接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
可选的,在所述第二指示信息指示所述控制命令的发送端为所述终端,且所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,第三执行模块1402,包括:
第六接收单元,用于接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息;
第六发送单元,用于向所述反向散射设备发送所述第二控制命令。
可选的,在所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,若所述反馈信息的处理端为所述网络侧设备,则所述第三指示信息还用于指示所述终端向所述网络侧设备发送第一信息,所述第一信息包括所述终端接收的第一设备的反馈信息,所述第一设备包括接收到所述控制命令的至少部分反向散射设备;
第三执行模块1402,包括:
第七接收单元,用于接收来自所述第一设备的反馈信息;
确定单元,用于根据接收到的所述反馈信息,确定第一信息;
第七发送单元,用于向所述网络侧设备发送所述第一信息。
可选的,所述第一参数还包括:
第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数为所述终端向所述网络侧设备发送所述第一信息时使用的传输参数。
可选的,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:
第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
可选的,所述第四指示信息用于指示以下任一项:
网络侧设备与反向散射设备直接进行所述反向散射通信;
网络侧设备与反向散射设备通过所述终端进行所述反向散射通信,其中,所述终端用于在所述反向散射通信中将所述反向散射设备发送的反馈信息转发给所述网络侧设备。
可选的,所述反馈信息包括以下至少一项:
反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
可选的,所述第一参数还包括以下至少一项:
反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;
盘点的轮数N,N为正整数;
每一轮盘点的反向散射设备数M,M为正整数;
目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;
目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
可选的,所述时间信息包括以下至少一项:
第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;
第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;
第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;
第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
可选的,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
本申请实施例提供的反向散射通信配置装置1400能够执行如图10所示方法实施例中,终端执行的各个过程,且能够取得相同的有益效果,为避免重复,在此不再赘述。
本申请实施例中的反向散射通信配置装置可以是电子设备,例如具有操作系统的电子
设备,也可以是电子设备中的部件,例如集成电路或芯片。该电子设备可以是终端,也可以为除终端之外的其他设备。示例性的,终端可以包括但不限于上述所列举的终端11的类型,其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等,本申请实施例不作具体限定。其他设备可以为服务器、网络附属存储器(Network Attached Storage,NAS)等。
可选的,如图15所示,本申请实施例还提供一种通信设备1500,包括处理器1501和存储器1502,存储器1502上存储有可在所述处理器1501上运行的程序或指令,例如,在该通信设备1500为网络侧设备时,该程序或指令被处理器1501执行时实现如图12所示反向散射通信配置装置执行的各个过程,且能达到相同的技术效果。或者,在该通信设备1500为反向散射设备时,该程序或指令被处理器1501执行时实现如图13所示反向散射通信配置装置执行的各个过程,且能达到相同的技术效果。或者,在该通信设备1500为终端时,该程序或指令被处理器1501执行时实现如图14所示反向散射通信配置装置执行的各个过程,且能达到相同的技术效果。
本申请实施例还提供一种终端,包括处理器和通信接口,所述通信接口用于接收第一配置信息,以及按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
具体地,图16为实现本申请实施例的一种终端的硬件结构示意图。
该终端1600包括但不限于:射频单元1601、网络模块1602、音频输出单元1603、输入单元1604、传感器1605、显示单元1606、用户输入单元1607、接口单元1608、存储器1609以及处理器1610等中的至少部分部件。
本领域技术人员可以理解,终端1600还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1610逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图16中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1604可以包括图形处理单元(Graphics Processing Unit,GPU)16041和麦克风16042,图形处理器16041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1606可包括显示面板16061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板16061。用户输入单元1607包括触控面板16071以及其他输入设备16072中的至少一种。触控面板16071,也称为触摸屏。触控面板16071可包括触摸检测装置和触摸控制器两个部分。其他输入设备16072可以包括但不限于物理键盘、功能键(比如音
量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1601接收来自网络侧设备的下行数据后,可以传输给处理器1610进行处理;另外,射频单元1601可以向网络侧设备发送上行数据。通常,射频单元1601包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1609可用于存储软件程序或指令以及各种数据。存储器1609可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1609可以包括易失性存储器或非易失性存储器,或者,存储器1609可以包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch Link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1609包括但不限于这些和任意其它适合类型的存储器。
处理器1610可包括一个或多个处理单元;可选的,处理器1610集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1610中。
其中,射频单元1601,用于终端接收第一配置信息,以及按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
可选地,所述目标通信模式包括以下任一项:
第一模式,在所述第一模式下,所述终端辅助网络侧设备和反向散射设备执行所述反向散射通信;
第二模式,在所述第二模式下,所述终端不辅助网络侧设备和反向散射设备执行所述反向散射通信。
可选地,在所述目标通信模式为所述第一模式的情况下;
处理器1610,用于根据所述第一配置信息确定第三配置信息;
射频单元1601,还用于向所述反向散射通信相关的反向散射设备发送所述第三配置
信息,所述第三配置信息用于指示所述反向散射设备在目标通信模式下的传输参数。
可选地,所述传输参数包括以下至少一项:
编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间,所述Q值用于控制所述反向散射设备的响应概率。
可选地,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:
第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;
第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;
第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
可选地,所述控制命令包括以下至少一项:
第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;
第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
可选地,在所述第二指示信息指示所述控制命令的发送端为所述终端的情况下,射频单元1601执行的所述按照所述第一配置信息进行反向散射通信,包括:
向所述反向散射设备发送所述第一控制命令;
接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
可选地,在所述第二指示信息指示所述控制命令的发送端为所述终端,且所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,射频单元1601执行的所述按照所述第一配置信息进行反向散射通信,包括:
接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息;
向所述反向散射设备发送所述第二控制命令。
可选地,在所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,若所述反馈信息的处理端为所述网络侧设备,则所述第三指示信息还用于指示所述终端向所述网络侧设备发送第一信息,所述第一信息包括所述终端接收的第一设备的反馈信息,所述第一设备包括接收到所述控制命令的至少部分反向散射设备;
射频单元1601执行的所述按照所述第一配置信息执行反向散射通信,包括:
射频单元1601,用于接收来自所述第一设备的反馈信息;
处理器1610,用于根据接收到的所述反馈信息,确定第一信息;
射频单元1601,还用于向所述网络侧设备发送所述第一信息。
可选地,所述第一参数还包括:
第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数为所述终端向所述网络侧设备发送所述第一信息时使用的传输参数。
可选地,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:
第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
可选地,所述第四指示信息用于指示以下任一项:
网络侧设备与反向散射设备直接进行所述反向散射通信;
网络侧设备与反向散射设备通过所述终端进行所述反向散射通信,其中,所述终端用于在所述反向散射通信中将所述反向散射设备发送的反馈信息转发给所述网络侧设备。
可选地,所述反馈信息包括以下至少一项:
反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
可选地,所述第一参数还包括以下至少一项:
反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;
盘点的轮数N,N为正整数;
每一轮盘点的反向散射设备数M,M为正整数;
目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;
目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
可选地,所述时间信息包括以下至少一项:
第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;
第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;
第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;
第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
可选地,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反
向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
本申请实施例提供的终端1600能够执行如图14所示反向散射通信配置装置1400执行的各个过程,且能够取得相同的有益效果,为避免重复,在此不再赘述。
本申请实施例还提供一种网络侧设备,包括处理器和通信接口,所述通信接口用于发送第一配置信息,以及按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:
所述反向散射通信的目标通信模式;
所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
该网络侧设备实施例与上述网络侧设备方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
具体地,本申请实施例还提供了一种网络侧设备。如图17所示,该网络侧设备1700包括:天线1701、射频装置1702、基带装置1703、处理器1704和存储器1705。天线1701与射频装置1702连接。在上行方向上,射频装置1702通过天线1701接收信息,将接收的信息发送给基带装置1703进行处理。在下行方向上,基带装置1703对要发送的信息进行处理,并发送给射频装置1702,射频装置1702对收到的信息进行处理后经过天线1701发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置1703中实现,该基带装置1703包括基带处理器。
基带装置1703例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图17所示,其中一个芯片例如为基带处理器,通过总线接口与存储器1705连接,以调用存储器1705中的程序,执行以上方法实施例中所示的网络侧设备的操作。
该网络侧设备还可以包括网络接口1706,该接口例如为通用公共无线接口(Common Public Radio Interface,CPRI)。
具体地,本申请实施例的网络侧设备1700还包括:存储在存储器1705上并可在处理器1704上运行的指令或程序,处理器1704调用存储器1705中的指令或程序执行图12所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现如图7、图9或图10所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和
所述处理器耦合,所述处理器用于运行程序或指令,实现如图7、图9或图10所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如图7、图9或图10所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供了一种无线通信系统,包括:终端、网络侧设备和反向散射设备,所述网络侧设备可用于执行如图7所示方法实施例的步骤;所述反向散射设备可用于执行如图9所示方法实施例的步骤;所述终端可用于执行如图10所示方法实施例的步骤。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。
Claims (42)
- 一种反向散射通信配置方法,所述方法包括:网络侧设备发送第一配置信息;所述网络侧设备按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:所述反向散射通信的目标通信模式;所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
- 根据权利要求1所述的方法,其中,所述目标通信模式包括以下任一项:第一模式,在所述第一模式下,所述网络侧设备通过终端辅助执行所述反向散射通信;第二模式,在所述第二模式下,所述网络侧设备不通过终端辅助执行所述反向散射通信。
- 根据权利要求2所述的方法,其中,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
- 根据权利要求3所述的方法,其中,在所述第三指示信息指示的所述反馈信息的接收端与所述反馈信息的处理端不同的情况下,所述第三指示信息还用于指示所述反馈信息的接收端向所述反馈信息的处理端发送第一信息,所述第一信息包括所述反馈信息的接收端接收的第一设备的反馈信息,其中,所述第一设备包括接收到所述控制命令的至少部分反向散射设备。
- 根据权利要求4所述的方法,其中,所述第一参数还包括:第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数为所述网络侧设备接收所述第一信息时使用的传输参数。
- 根据权利要求3所述的方法,其中,所述控制命令包括以下至少一项:第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
- 根据权利要求6所述的方法,其中,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:所述网络侧设备向所述反向散射设备发送所述第一控制命令;所述网络侧设备接收来自所述反向散射设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
- 根据权利要求6所述的方法,其中,在所述第二指示信息指示所述控制命令的发送端为所述网络侧设备的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:所述网络侧设备接收来自第一设备的反馈信息,或者,所述网络侧设备接收来自所述终端的第一信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备,所述第一信息包括所述终端接收的所述第一设备的反馈信息;所述网络侧设备向所述第一设备发送所述第二控制命令。
- 根据权利要求2所述的方法,其中,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
- 根据权利要求9所述的方法,其中,所述第四指示信息用于指示以下任一项:所述网络侧设备与反向散射设备直接进行所述反向散射通信;所述网络侧设备与反向散射设备通过转发设备进行所述反向散射通信。
- 根据权利要求9所述的方法,其中,在所述目标通信模式为所述第二模式的情况下,所述网络侧设备按照所述第一配置信息进行反向散射通信,包括:所述网络侧设备向反向散射设备发送第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;所述网络侧设备接收第一设备的反馈信息,所述第一设备包括所述反向散射设备的至少部分;所述网络侧设备向所述第一设备发送第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
- 根据权利要求3或4或6或7或8或11所述的方法,其中,所述反馈信息包括以下至少一项:反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
- 根据权利要求1至11中任一项所述的方法,其中,所述第一参数还包括以下至少一项:反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;盘点的轮数N,N为正整数;每一轮盘点的反向散射设备数M,M为正整数;目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时 间信息;目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
- 根据权利要求13所述的方法,其中,所述时间信息包括以下至少一项:第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
- 根据权利要求13所述的方法,其中,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
- 一种反向散射通信配置方法,所述方法包括:反向散射设备接收来自网络侧设备的第一配置信息,或接收来自终端的第三配置信息;所述反向散射设备按照所述第一配置信息或所述第三配置信息执行反向散射通信;其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
- 根据权利要求16所述的方法,其中,所述目标通信模式包括以下任一项:第一模式,在所述第一模式下,所述反向散射设备通过终端辅助执行所述反向散射通信;第二模式,在所述第二模式下,所述反向散射设备不通过终端辅助执行所述反向散射通信。
- 根据权利要求16或17所述的方法,其中,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间。
- 根据权利要求16或17所述的方法,其中,所述反向散射设备接收来自网络侧设备的第一配置信息,或接收来自终端的第三配置信息,包括:所述反向散射设备接收来自网络侧设备或终端的第一控制命令,其中,来自所述网络侧设备的所述第一控制命令包括所述第一配置信息,或者来自所述终端的所述第一控制命令包括所述第三配置信息;所述反向散射设备按照所述第一配置信息或所述第三配置信息执行反向散射通信,包括:所述反向散射设备按照所述第一配置信息或所述第三配置信息执行所述第一控制命令,并发送执行所述第一控制命令的反馈信息。
- 一种反向散射通信配置方法,所述方法包括:终端接收第一配置信息;所述终端按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:所述反向散射通信的目标通信模式;所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
- 根据权利要求20所述的方法,其中,所述目标通信模式包括以下任一项:第一模式,在所述第一模式下,所述终端辅助网络侧设备和反向散射设备执行所述反向散射通信;第二模式,在所述第二模式下,所述终端不辅助网络侧设备和反向散射设备执行所述反向散射通信。
- 根据权利要求21所述的方法,其中,在所述目标通信模式为所述第一模式的情况下,所述方法还包括:所述终端根据所述第一配置信息确定第三配置信息;所述终端向所述反向散射通信相关的反向散射设备发送所述第三配置信息,所述第三配置信息用于指示所述反向散射设备在目标通信模式下的传输参数。
- 根据权利要求22所述的方法,其中,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率、Q值和反馈信息的反馈时间,所述Q值用于控制所述反向散射设备的响应概率。
- 根据权利要求21所述的方法,其中,在所述目标通信模式为所述第一模式的情况下,所述第一参数包括以下至少一项:第一指示信息,所述第一指示信息用于指示第一信号的发送端,所述第一信号为反向散射设备的激励源,其中,所述第一信号的发送端包括所述网络侧设备或所述终端;第二指示信息,所述第二指示信息用于指示控制命令的发送端,所述控制命令用于控制所述反向散射设备,其中,所述控制命令的发送端包括所述网络侧设备或所述终端;第三指示信息,所述第三指示信息用于指示所述反向散射通信中反馈信息的接收端,所述反馈信息与所述控制命令对应,且所述反向散射设备基于所述第一信号获取发送所述反馈信息的激励源,其中,所述反馈信息的接收端包括所述网络侧设备或所述终端。
- 根据权利要求24所述的方法,其中,所述控制命令包括以下至少一项:第一控制命令,所述第一控制命令包括选择命令、质询命令和接入命令中的至少一项;第二控制命令,所述第二控制命令为与所述反馈信息对应的反馈命令。
- 根据权利要求25所述的方法,其中,在所述第二指示信息指示所述控制命令的发送端为所述终端的情况下,所述终端按照所述第一配置信息进行反向散射通信,包括:所述终端向所述反向散射设备发送所述第一控制命令;所述终端接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息。
- 根据权利要求25所述的方法,其中,在所述第二指示信息指示所述控制命令的发送端为所述终端,且所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,所述终端按照所述第一配置信息进行反向散射通信,包括:所述终端接收来自所述反向散射设备的反馈信息,或者,所述终端接收来自所述网络侧设备的第一信息,所述第一信息为至少部分反向散射设备的反馈信息;所述终端向所述反向散射设备发送所述第二控制命令。
- 根据权利要求25所述的方法,其中,在所述第三指示信息指示所述反馈信息的接收端为所述终端的情况下,若所述反馈信息的处理端为所述网络侧设备,则所述第三指示信息还用于指示所述终端向所述网络侧设备发送第一信息,所述第一信息包括所述终端接收的第一设备的反馈信息,所述第一设备包括接收到所述控制命令的至少部分反向散射设备;所述终端按照所述第一配置信息执行反向散射通信,包括:所述终端接收来自所述第一设备的反馈信息;所述终端根据接收到的所述反馈信息,确定第一信息;所述终端向所述网络侧设备发送所述第一信息。
- 根据权利要求28所述的方法,其中,所述第一参数还包括:第二配置信息,其中,所述第二配置信息用于配置第一传输参数,所述第一传输参数为所述终端向所述网络侧设备发送所述第一信息时使用的传输参数。
- 根据权利要求21所述的方法,其中,在所述目标通信模式为所述第二模式的情况下,所述第一参数包括以下至少一项:第四指示信息,所述第四指示信息用于指示所述反向散射通信的转发信息。
- 根据权利要求30所述的方法,其中,所述第四指示信息用于指示以下任一项:网络侧设备与反向散射设备直接进行所述反向散射通信;网络侧设备与反向散射设备通过所述终端进行所述反向散射通信,其中,所述终端用于在所述反向散射通信中将所述反向散射设备发送的反馈信息转发给所述网络侧设备。
- 根据权利要求23至28中任一项或31所述的方法,其中,所述反馈信息包括以下至少一项:反向散射设备的临时标识、盘点回合数、协议控制符PC、扩展协议控制符XPC和电子商品码EPC。
- 根据权利要求20至31中任一项所述的方法,其中,所述第一参数还包括以下至少一项:反向散射设备的传输参数,所述传输参数包括以下至少一项:编码方式、调制频率、数据速率和Q值,所述Q值用于控制所述反向散射设备的响应概率;盘点的轮数N,N为正整数;每一轮盘点的反向散射设备数M,M为正整数;目标时间线,所述目标时间线包括所述反向散射通信中的至少一个信号传输节点的时间信息;目标资源信息,所述目标资源信息包括所述反向散射通信中的至少一个传输的时域和/或频域资源信息。
- 根据权利要求33所述的方法,其中,所述时间信息包括以下至少一项:第一时间间隔,第一信号的发送时刻位于所述第一时间间隔内,所述第一时间间隔的时间起点为第一时间单元的结束时刻,所述第一时间单元为向所述反向散射设备发送第一个第一控制命令的时间单元,所述第一信号作为所述反向散射设备的激励源;第二时间间隔,发送相邻的两个第一控制命令之间的时间间隔大于或等于所述第二时间间隔;第三时间间隔,在所述目标通信模式为第一通信模式的情况下,第一信息的发送时刻位于所述第三时间间隔内,所述第三时间间隔的时间起点为所述第一时间单元的起始/结束时刻,其中,所述第一信息包括第一设备的反馈信息,所述第一设备包括接收到所述第一控制命令的至少部分反向散射设备;第四时间间隔,同一反向散射设备接收到第一控制命令的时刻与发送反馈信息的时刻之间的时间间隔小于或者等于所述第四时间间隔。
- 根据权利要求33所述的方法,其中,在所述第一参数包括盘点的轮数N,且N大于1的情况下,用于控制所述反向散射设备的控制命令包括盘点轮次标识,所述盘点轮次标识指示所述控制命令用于第n轮盘点,n为小于或等于N的正整数。
- 一种反向散射通信配置装置,用于网络侧设备,所述装置包括:第一发送模块,用于发送第一配置信息;第一执行模块,用于按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:所述反向散射通信的目标通信模式;所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
- 一种反向散射通信配置装置,用于反向散射设备,所述装置包括:第一接收模块,用于接收来自网络侧设备的第一配置信息,或用于接收来自终端的第三配置信息;第二执行模块,用于按照所述第一配置信息或所述第三配置信息执行反向散射通信;其中,所述第一配置信息或所述第三配置信息指示所述反向散射设备在目标通信模式下的传输参数。
- 一种反向散射通信配置装置,用于终端,所述装置包括:第二接收模块,用于接收第一配置信息;第三执行模块,用于按照所述第一配置信息执行反向散射通信;其中,所述第一配置信息用于指示以下任一项:所述反向散射通信的目标通信模式;所述目标通信模式和第一参数,其中,所述第一参数为与所述目标通信模式对应的相关通信参数。
- 一种网络侧设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至15中任一项所述的反向散射通信配置方法的步骤。
- 一种反向散射设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求16至19中任一项所述的反向散射通信配置方法的步骤。
- 一种终端,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求20至35中任一项所述的反向散射通信配置方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至15中任一项所述的反向散射通信配置方法,或者实现如权利要求16至19中任一项所述的反向散射通信配置方法的步骤,或者实现如权利要求20至35中任一项所述的反向散射通信配置方法的步骤。
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