WO2021057473A1

WO2021057473A1 - Method for scheduling carrier in symbiotic network, apparatus, and storage medium

Info

Publication number: WO2021057473A1
Application number: PCT/CN2020/114116
Authority: WO
Inventors: 马川; 谭巍
Original assignee: 华为技术有限公司
Priority date: 2019-09-24
Filing date: 2020-09-08
Publication date: 2021-04-01
Also published as: CN112637857B; CN112637857A

Abstract

The present application provides a method for scheduling a carrier in a symbiotic network, an apparatus, and a storage medium. Said method comprises: a network device receiving AmBC capability information reported by a terminal device and measurement information of an AmBC resource pool; and performing AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool. The AmBC capability information includes an uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the communication quality of a terminal device in AmBC communication. On the basis of said method, a network device is able to implement AmBC carrier scheduling according to the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool.

Description

Carrier scheduling method, device and storage medium in symbiosis network

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 24, 2019, the application number is 201910906346.0, and the application title is "A method, device and storage medium for scheduling carrier waves in a symbiotic network", and its entire contents Incorporated in this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a method, device and storage medium for scheduling carriers in a symbiotic network.

Background technique

With the development of the Internet of Things (IoT) technology, the number of IoT devices is also growing rapidly, which poses a huge challenge to the wireless spectrum and basic network equipment. The symbiotic network can solve the wireless spectrum and basic network. Equipment requirements. The symbiosis network is a wireless communication network in which an active communication system and a passive communication system coexist. As shown in Fig. 1, a schematic diagram of a symbiotic network is exemplarily shown. Among them, the active communication system can be a conventional wireless communication system (for example, the 4th Generation mobile communication technology (4G)/5G and wireless fidelity (WiFi)), and the passive communication system is the environment reverse In the ambient backscatter communication (AmBC) system, the passive communication system implements data transmission by backscattering the radio frequency signal of the active communication system, and does not require an active radio frequency chain. In this way, dedicated spectrum and infrastructure are not required.

A symbiotic network in which the active communication system is a cellular communication system is called a symbiotic network based on cellular communication, that is, terminal devices in the AmBC communication system communicate through backscattering cellular signals. In this kind of symbiosis network, in order to improve the AmBC communication quality and reduce the interference of AmBC communication to the cellular system, an AmBC resource pool is configured for the cell. To ensure that there is AmBC carrier transmission on the AmBC resource pool, AmBC carrier scheduling is required. However, there is currently no relevant plan for AmBC carrier scheduling.

Summary of the invention

This application provides a method, device, and storage medium for scheduling carriers in a symbiotic network, which are used to implement scheduling of AmBC carriers in an AmBC communication network.

In the first aspect, this application provides a method for scheduling carriers in a symbiotic network. The method includes receiving the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool by the network device, which can be based on the AmBC capability information and the AmBC resource pool. Measure information and perform AmBC carrier scheduling. Among them, the AmBC capability information includes the uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the communication quality of the terminal device in the AmBC communication.

Based on this solution, the network device can perform AmBC carrier scheduling based on the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool. In other words, the AmBC carrier scheduling in the AmBC communication network is realized.

In a possible implementation manner, the AmBC capability information also includes the type of terminal equipment and/or the location information of the terminal equipment; wherein, the type of terminal equipment includes the first type and the second type, and the first type of terminal equipment has cellular Communication capability and uplink excitation carrier transmission capability. The second type of terminal equipment has cellular communication capability, uplink excitation carrier transmission capability and AmBC communication capability. The network device can determine which terminal device is scheduled first to transmit the UL excitation carrier according to the type reported by the terminal device. For example, if the network device simultaneously receives the terminal device types reported by the terminal device of the first type and the terminal device of the second type, it may first schedule the terminal device of the first type to send the UL excitation carrier. In this way, it helps to reduce the crosstalk problem caused by the simultaneous transmission of UL excitation carrier and AmBC signal for the second type of terminal equipment.

In a possible implementation manner, the network device may also send instruction information to the terminal device. The instruction information is used to instruct the terminal device to measure the AmBC resource pool, where the instruction information includes the to-be-measured in the AmBC resource pool to be measured. The carrier and the measured quantity, for example, the time-frequency resource where the carrier to be measured is located and/or the average value of the received power on the carrier to be measured.

In a possible implementation, the network device determines that the AmBC carrier scheduling trigger condition is met or receives the AmBC carrier scheduling request from the terminal device, determines the AmBC carrier scheduling strategy according to the measurement information of the AmBC resource pool, and performs the operation according to the AmBC carrier scheduling strategy AmBC carrier scheduling. The AmBC carrier scheduling strategy includes the type of the scheduled AmBC carrier, the terminal equipment associated with the scheduled AmBC carrier, and the time-frequency resource where the scheduled AmBC carrier is located.

In a possible implementation, the measurement information of the AmBC resource pool may include the average value of the received power of the carrier to be measured by the terminal device in the AmBC resource pool; if the network device determines that the average value of the received power is less than the threshold, it determines Meet the trigger condition of AmBC carrier scheduling.

In a possible implementation, the network device can also send AmBC configuration information to the terminal device. The AmBC configuration information includes the AmBC radio network temporary identity (RNTI) of the terminal device in AmBC communication, which is used by AmBC RNTI. It serves as the identity of the terminal device in the AmBC communication process.

When the network device determines that the type of the scheduled AmBC carrier is an uplink excitation carrier, it can send a scheduling instruction to the terminal device through downlink control information (DCI). The scheduling instruction is used to indicate the uplink excitation carrier transmitted by the terminal device. Parameters and scheduling instructions are scrambled through the AmBC wireless network temporary identification RNTI of the terminal equipment.

In the second aspect, this application provides a method for scheduling carriers in a symbiotic network. The method includes terminal equipment determining AmBC capability information and AmBC resource pool measurement information. The AmBC capability information includes uplink excitation carrier transmission capability and AmBC resource pool measurement The information is used to identify the communication quality of the terminal device in AmBC communication, and the terminal device reports AmBC capability information and AmBC resource pool measurement information to the network device.

Based on this solution, the terminal device reports the determined AmBC capability information and the measurement information of the AmBC resource pool to the network device, so that the network device can implement the AmBC carrier based on the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool. Scheduling.

In a possible implementation manner, the AmBC capability information also includes the type of terminal equipment and/or the location information of the terminal equipment; wherein, the type of terminal equipment includes the first type and the second type, and the first type of terminal equipment has cellular Communication capability and uplink excitation carrier transmission capability. The second type of terminal equipment has cellular communication capability, uplink excitation carrier transmission capability and AmBC communication capability.

In a possible implementation manner, the terminal device may receive indication information from the network device. The indication information includes the carrier to be measured in the AmBC resource pool to be measured and the measurement quantity, such as the time-frequency resource and/or the carrier to be measured. Or the average value of the received power on the carrier to be measured. The terminal device can measure the AmBC resource pool according to the instruction information.

In a possible implementation manner, the terminal device can determine that the trigger condition of AmBC carrier scheduling is satisfied according to the measurement information of the AmBC resource pool, and send an AmBC carrier scheduling request to the network device. The AmBC carrier scheduling request is used to request the network device to perform AmBC. Carrier scheduling. When the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the measured AmBC resource pool; if the terminal device determines that the average value of the received power is less than the threshold, it is determined that the AmBC carrier scheduling trigger is satisfied condition.

In a possible implementation manner, the terminal device receives the AmBC configuration information from the network device, and the AmBC configuration information includes the AmBC wireless network temporary identifier RNTI of the terminal device.

When the terminal device receives the scheduling instruction sent from the network device through DCI, the scheduling instruction is obtained by scrambling through the AmBC RNTI of the terminal device when the network device determines that the type of the AmBC carrier scheduled is the uplink excitation carrier; the terminal device can follow AmBC RNTI descrambles the scheduling instruction, and sends the uplink excitation carrier to the network device according to the descrambling scheduling instruction.

In a third aspect, the present application provides a communication device, which has the function of realizing the terminal device or the network device in the foregoing embodiment. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-mentioned functions.

In a possible implementation manner, the communication device may be a terminal device, or a component that can be used in a terminal device, such as a chip or a chip system or a circuit, the communication device may include a transceiver and a processor. The processor may be configured to support the communication device to perform the corresponding functions of the terminal device shown above, and the transceiver is used to support the communication between the communication device and the network device and other terminal devices. Optionally, the communication device may further include a memory, and the storage may be coupled with the processor, which stores program instructions and data necessary for the communication device. Among them, the transceiver may be an independent receiver, an independent transmitter, a transceiver with integrated transceiver functions, or an interface circuit.

In another possible implementation manner, the communication device may be a network device, or a component that can be used in a network device, such as a chip or a chip system or a circuit, and the communication device may include a transceiver. The transceiver is used to support the communication between the communication device and other network equipment and terminal equipment. Among them, the transceiver may be an independent receiver, an independent transmitter, a transceiver with integrated transceiver functions, or an interface circuit. Optionally, the communication device may further include a memory, and the memory is coupled to store necessary program instructions and data of the communication device.

In a fourth aspect, the present application provides a communication device, which is used to implement any one of the above-mentioned first aspect or the first aspect, or is used to implement any one of the above-mentioned second or second aspects, including The corresponding functional modules are respectively used to implement the steps in the above method. The function can be realized by hardware, or the corresponding software can be executed by hardware. The hardware or software includes one or more modules corresponding to the above-mentioned functions.

In a possible implementation manner, the communication device may be a terminal device, and the communication device may include a processing unit and a transceiving unit. These units can perform the corresponding functions of the terminal device in the above method example. For details, please refer to the detailed description in the method example , Do not repeat it here.

In another possible implementation manner, the communication device may also be a network device, and the communication device may include a transceiver unit, and these units may perform corresponding functions of the network device in the above method example. For details, please refer to the detailed description in the method example. Do not repeat them here.

In a fifth aspect, the present application provides a communication system, which includes a terminal device and a network device. Wherein, the terminal device may be used to execute any method in the first aspect or the first aspect, and the network device may be used to execute any method in the second aspect or the second aspect.

In a sixth aspect, the embodiments of the present application provide a computer storage medium. The computer storage medium stores instructions that, when run on a communication device, cause the communication device to execute the first aspect or any possible implementation of the first aspect. Or make the computer execute the second aspect or the method in any possible implementation manner of the second aspect.

In a seventh aspect, embodiments of the present application provide a computer program product containing instructions, which when run on a communication device, cause the communication device to execute the method in the first aspect or any possible implementation of the first aspect, or The computer is caused to execute the method in the second aspect or any possible implementation manner of the second aspect.

Description of the drawings

Figure 1 is a schematic diagram of a symbiotic network provided by this application;

2 is a schematic diagram of a system architecture of a symbiotic network based on cellular communication provided by this application;

FIG. 3 is a schematic diagram of the scheduling principle of an AmBC carrier scheduler in a network device provided by this application;

FIG. 4 is a schematic flowchart of a method for scheduling carriers in a symbiotic network provided by this application;

FIG. 5 is a schematic structural diagram of a communication device provided by this application;

FIG. 6 is a schematic structural diagram of a communication device provided by this application;

FIG. 7 is a schematic structural diagram of a network device provided by this application;

FIG. 8 is a schematic structural diagram of a terminal device provided by this application.

detailed description

In order to make the purpose, technical solutions, and advantages of the application more clear, the application will be further described in detail below with reference to the accompanying drawings.

Hereinafter, some terms in this application will be explained to facilitate the understanding of those skilled in the art.

1) Active communication system refers to a conventional wireless communication system, such as 4G/5G, Wi-Fi. The communication device in the active communication system can transmit data by transmitting radio frequency signals by itself.

2) Passive communication system refers to the AmBC system. The communication device in this communication system does not transmit radio frequency signals by itself, but transmits data by backscattering the radio frequency signals of the active communication system.

3) AmBC transmitter, by adjusting the antenna impedance, the antenna can absorb or backscatter radio frequency signals (such as cellular signals) in the environment, thereby achieving "0" or "1" transmission. For example, when the impedance is matched (for example, the impedance is within a preset range), the antenna almost completely absorbs the radio frequency signal in the environment (also called the absorption state), and sends "0" at this time; when the impedance does not match (for example, the impedance is not in the preset range), When the range is set), the antenna almost completely reflects the radio frequency signal in the environment (also called the reflected state), and at this time, it sends "1". It can also be understood that the AmBC transmitter loads its own signal (low-frequency signal) onto the radio frequency signal (high-frequency signal) in the environment to achieve data transmission.

4) AmBC receiver, do a sliding window averaging of the received signal to extract the AmBC signal (low frequency signal). It can also be understood as filtering out the high-frequency signal in the received signal to obtain its own low-frequency signal.

5) AmBC carrier refers to the cellular signal backscattered during AmBC communication. It mainly includes four types: conventional downlink (DL) signal, conventional uplink (uplink, UL) signal, DL excitation carrier, and UL excitation carrier. Conventional DL signals refer to radio frequency signals transmitted by network devices that carry DL cellular data. Conventional UL signals refer to radio frequency signals transmitted by terminal equipment that carry UL cellular data. DL excitation carrier refers to the radio frequency signal that does not carry cellular data transmitted by network equipment, that is, it is dedicated to provide backscatter carrier for AmBC communication. UL excitation carrier refers to the radio frequency signal transmitted by terminal equipment without carrying cellular data, that is, it is dedicated to provide backscatter carrier for AmBC communication.

6) Cellular communication resources refer to time-frequency resources used to transmit cellular signals.

7) AmBC communication resources refer to the time-frequency resources where the AmBC carrier is used for transmission, that is, the time-frequency resources where the cellular signals that can be backscattered by the terminal device are located.

8) AmBC resource pool refers to a collection of AmBC communication resources (for example, time-frequency resources) (of a cell). Each cell is configured with several AmBC resource pools.

9) Network equipment, for example, includes access network (access network, AN) equipment, which can also be referred to as wireless access network equipment, and is used to connect terminal equipment to the equipment in the wireless network. For example, a base station (for example, an access point) may refer to a device that communicates with a wireless terminal device through one or more cells at an air interface in an access network, for example, in a vehicle-to-everything (V2X) technology The access network equipment may be a roadside unit (RSU). The base station can be used to convert received air frames and Internet Protocol (IP) packets into each other, and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications. The access network equipment can also coordinate the attribute management of the air interface. Exemplarily, the access network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the LTE system or long term evolution-advanced (LTE-A), or may also include The fifth generation of mobile communication technology (the 5th generation, 5G) NR system in the next generation node B (next generation node B, gNB), transmission reception node (transmission reception point, TRP) (also known as the transceiver node), baseband processing Unit (building base band unit, BBU) and radio frequency unit (Radio Remote Unit, RRU), BBU and active antenna unit (AAU), or may also include cloud access network (cloud radio access network, Cloud RAN) ) Centralized unit (CU) and distributed unit (DU) in the system, or may also include access points in wireless fidelity (Wi-Fi) systems, or may also include Radio network controller (RNC), network equipment controller (base station controller, BSC), network equipment transceiver station (BTS), home network equipment (for example, home evolved NodeB, or Home Node B) , HNB), or may also include base stations, small stations, and micro stations in the future communication network. The embodiments of the present application are not limited.

10) Terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle-to-everything (V2X) Terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit, subscriber station (subscriber station), mobile station (mobile station, MS), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), mobile terminal (mobile terminal, MT), virtual reality (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, industrial control (industrial control) wireless terminal, unmanned driving (self driving) Wireless terminals in remote medical (remote medical), wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, and smart city The wireless terminal, user agent, or user device in a smart home. For example, it may include a mobile phone (or called a "cellular" phone), a computer with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and the like. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants, PDA) and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in this application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The various terminal devices described above can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. If it is located on a vehicle (for example, placed in a vehicle or installed in a vehicle), it can be regarded as an on-board terminal device, which is also called an on-board unit (OBU), for example. It can also be deployed on the surface of the water, or can also be deployed on aircraft, balloons, and satellites in the air, which is not limited in this application.

In this application, the terminal device has the transmission capability of the uplink carrier. Specifically, it can include the following three types of terminal equipment. The first type of terminal equipment has cellular communication capabilities (or other communication capabilities in active communication systems) and uplink excitation carrier transmission capabilities, and the second type of terminal equipment has cellular communication capabilities. (Or other communication capabilities in an active communication system), uplink excitation carrier transmission capability and AmBC communication capability. The third type of terminal equipment has AmBC communication capability. Among them, the terminal equipment of the first type and the terminal equipment of the second type may also be referred to as cellular terminal equipment. The second type of terminal equipment and the third type of terminal equipment may also be referred to as AmBC terminal equipment.

Based on the foregoing, as shown in FIG. 2, a schematic diagram of a system architecture of a symbiotic network based on cellular communication is exemplarily shown. The system may include network equipment and terminal equipment. Wherein, the terminal device may include a first type of terminal device, a second type of terminal device, and a third type of terminal device. The first type of terminal equipment has cellular communication capability and uplink excitation carrier transmission capability, the second type of terminal equipment has cellular communication capability, uplink excitation carrier transmission capability and AmBC communication capability, and the third type of terminal equipment has AmBC communication capability. The network equipment can send cellular signals to the first type of terminal equipment and the second type of terminal equipment, that is, perform DL cellular communication; the first type of terminal equipment and the second type of terminal equipment can also send cellular signals to the network equipment, namely Perform UL cellular communication; the second type of terminal device and the third type of terminal device can send AmBC signals to other terminal devices that support AmBC communication by backscattering the cellular signal, that is, perform AmBC communication.

In combination with the above system architecture, in order to ensure normal AmBC communication, network equipment needs to perform AmBC carrier scheduling. As shown in FIG. 3, a schematic diagram of the scheduling principle of the AmBC carrier scheduler in a network device provided by this application. The input of the AmBC carrier scheduler includes: cellular communication related information (such as cellular transmission requirements, cellular channel quality, etc.) and AmBC communication related information (such as AmBC resource pool measurement information, terminal equipment capability information, terminal equipment location information, etc.) )Wait. The output of the AmBC carrier scheduler includes: the type of AmBC carrier (for example, regular DL signal, regular UL signal, DL excitation carrier, or UL excitation carrier), terminal equipment associated with the AmBC carrier (terminal equipment for receiving regular DL signal, user The terminal equipment used to transmit conventional UL signals, the terminal equipment used to transmit UL excitation carrier) and the time-frequency resources where the AmBC carrier is located.

The following describes in detail the technical solution of how the network equipment performs AmBC carrier scheduling with reference to the accompanying drawings.

As shown in FIG. 4, a schematic flowchart of a method for scheduling carriers in a symbiotic network provided by this application. In the following introduction process, the application of this method to the network architecture shown in any one of the drawings in FIG. 1 or FIG. 2 is taken as an example. The method includes the following steps:

Step 401: The terminal device determines AmBC capability information and measurement information of the AmBC resource pool.

Here, the AmBC capability information may include UL excitation carrier transmission capability. That is, the terminal device can report to the network device whether it has the UL excitation carrier transmission capability. Among them, the specific form of the terminal device reporting UL excitation carrier transmission capability may be pre-arranged by the terminal device and the network device, or may be predefined by the protocol, which is not limited in this application. For example, the UL excitation carrier transmission capability of the terminal device can be represented by one or more bits of information, which can be identified by 1 bit, "0" indicates that the terminal device can transmit UL excitation carrier, and "1" indicates that the terminal device cannot transmit UL excitation carrier. In other words, if the network device receives "0", it can be determined that the terminal device does not have the UL excitation carrier transmission capability, and if it receives "1", it can be determined that the terminal device has the UL excitation carrier transmission capability. It should be understood that the foregoing bit information is only exemplary, and the UL excitation carrier transmission capability may also be represented by other forms of information.

In a possible implementation manner, the AmBC capability information may also include the type of terminal equipment. The types of terminal equipment include the first type and the second type. The terminal equipment of the first type has cellular communication capabilities and UL excitation carrier transmission capabilities. The second type of terminal equipment has cellular communication capabilities, UL excitation carrier transmission capabilities, and AmBC communication capabilities. Wherein, the form in which the terminal device reports the type of the terminal device may be pre-arranged by the terminal device and the network device, or may be predefined by the protocol, which is not limited in this application. For example, a 1-bit identification can also be used, "1" indicates that the type of terminal device is type one, and "2" indicates that the type of terminal device is type two. In other words, when the network device receives "1", it can be determined that the terminal device is a terminal device of the first type, and when it receives "2", it can be determined that the terminal device is a terminal device of the second type. The network device can determine the scheduling strategy based on the type of the terminal device. For example, when a first type of terminal device and a second type of terminal device exist in the network at the same time, the network device may first schedule the first type of terminal device to send the UL excitation carrier. In this way, it helps to reduce the crosstalk problem caused by the simultaneous transmission of UL excitation carrier and AmBC signal for the second type of terminal equipment.

Further, optionally, the AmBC capability information may also include location information of the terminal device. The network device can determine which locations to schedule the terminal device based on the location information reported by the terminal device.

In this application, the network device may instruct the terminal device to measure the AmBC resource pool. That is, the network device can instruct the terminal device how to measure the AmBC resource pool. Exemplarily, the time-frequency resources to be measured (for example, some time-frequency resources with the same frequency as the AmBC resource pool and advanced in time), and the measurement amount (for example, the average value of the received power of the carrier to be measured) may be indicated. In a possible implementation manner, the network device may send instruction information to the terminal device. Correspondingly, the terminal device receives the instruction information from the network device. The indication information is used to instruct the terminal device to measure the AmBC resource pool, where the indication information may include the carrier to be measured in the AmBC resource pool to be measured and the measurement amount, such as the time-frequency resource and/or the time-frequency resource where the carrier to be measured is located. The average value of the received power on the carrier to be measured. It should be understood that the above-mentioned indication information may be pre-agreed by the terminal device and the network device, or may be predefined by the protocol, which is not limited in this application. For example, the indication information may be several indication characters, which may indicate how the terminal device measures the AmBC resource pool. The specific form of the instruction information can also be any other possible form, which is not limited in this application.

In a possible implementation manner, the terminal device can measure the AmBC resource pool according to the received instruction information to obtain the measurement information of the AmBC resource pool. The measurement information of the AmBC resource pool can identify (that is, reflect) that the terminal device is in Communication quality in AmBC communication. Exemplarily, the terminal device can measure the AmBC resource pool according to the instruction information to obtain the measurement information of the AmBC resource pool.

Step 402: The terminal device reports the AmBC capability information and the measurement information of the AmBC resource pool to the network device. Correspondingly, the network device can receive the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool.

It should be noted that the terminal device may send the above-mentioned AmBC capability information and the measurement information of the AmBC resource pool to the network device together, or may separately send to the network device separately, which is not limited in this application.

Step 403: The network device performs AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool.

In a possible implementation manner, the network device may first determine whether to perform AmBC carrier scheduling, which may be determined by either of the following two implementation manners.

Implementation mode 1: The network device determines whether AmBC carrier scheduling is required.

When determining that the trigger condition of the AmBC carrier scheduling is satisfied, the network device determines that the AmBC carrier scheduling is required. Exemplarily, the network device can determine whether the AmBC carrier scheduling trigger condition is satisfied according to the measurement information of the AmBC resource pool. That is, the network device can evaluate the AmBC resource pool based on the measurement information of the AmBC resource pool reported by the terminal device to determine whether AmBC carrier scheduling is required. For example, when the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the measured AmBC resource pool, if the network device determines that the value is less than the threshold, it determines that the trigger condition of the AmBC carrier scheduling is met , That is, it is determined that AmBC carrier scheduling is required.

Implementation manner 2: The terminal device sends an AmBC carrier scheduling request to the network device.

In a possible implementation manner, the terminal device can determine whether the AmBC carrier scheduling trigger condition is satisfied according to the measurement information of the AmBC resource pool. When the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the measured AmBC resource pool, if the terminal device determines that the value is less than the threshold, it determines that the AmBC carrier scheduling trigger condition is met. Or, when the terminal device determines that the average power of the received power of the AmBC carrier received on certain time-frequency resources is less than a preset value, it determines that the AmBC carrier scheduling trigger condition is satisfied. Further, when the terminal device determines that the AmBC carrier scheduling trigger condition is satisfied, it sends an AmBC carrier scheduling request to the network device, where the AmBC carrier scheduling request is used to request the network device to perform AmBC carrier scheduling. After the network device receives the AmBC carrier scheduling request from the terminal device, it determines that AmBC carrier scheduling is needed. It should be noted that the determination of whether the AmBC carrier scheduling trigger condition is satisfied by the above terminal device is only exemplary, and the terminal device may also independently determine other AmBC carrier scheduling trigger conditions.

The foregoing AmBC carrier scheduling request may be represented by one or more bits of information. For example, the bit information "00" is used to indicate the AmBC carrier scheduling request, and the network device receives the bit information "00" from the terminal device, and it can be determined that the terminal device needs to perform AmBC carrier scheduling. It should be noted that the above-mentioned bit information is only exemplary, and the AmBC carrier scheduling request may also be expressed by other forms of information.

In a possible implementation manner, the AmBC carrier scheduling request may also include parameters such as time-frequency resources and power required for AmBC carrier scheduling. For example, it is requested to increase the power of the AmBC carrier on a certain frequency band by several dB. The terminal device may send the AmBC carrier scheduling request to the network device through a medium access control (MAC) control element (CE) or a radio resource control (radio resource control, RRC) message.

The above two implementation methods for determining whether AmBC carrier scheduling is required are only examples, and this application does not limit how to determine whether AmBC carrier scheduling is required. In addition, the choice of the above implementation method to determine whether it is necessary to perform AmBC carrier scheduling can be pre-appointed by the network equipment and terminal equipment, or it can be specified in the agreement, or it can be selected based on certain factors. There is no restriction on this application.

In this application, after the network device determines that AmBC carrier scheduling is required based on the foregoing implementation manner 1 or implementation manner 2 or any other possible manner, the network device can determine the AmBC carrier scheduling strategy according to the measurement information of the AmBC resource pool. It may be that the AmBC carrier scheduler of the network device runs the AmBC carrier scheduling algorithm to determine the AmBC carrier scheduling strategy. Among them, the AmBC carrier scheduling strategy includes, but is not limited to, the type of the scheduled AmBC carrier (for example, regular DL signal, regular UL signal, DL excitation carrier or UL excitation carrier), and terminal equipment associated with the scheduled AmBC carrier (used to receive regular One or more of the terminal equipment of the DL signal, the terminal equipment used to transmit the conventional UL signal, the AmBC terminal equipment used to transmit the UL excitation carrier, and the time-frequency resource where the scheduled AmBC carrier is located.

In a possible implementation manner, the network device may also send AmBC configuration information to the terminal device. Correspondingly, the terminal device receives the AmBC configuration information from the network device. Among them, the AmBC configuration information includes the AmBC radio network temporary identity (RNTI) of the terminal device in the AmBC communication.

When the network device determines that the type of the scheduled AmBC carrier is a UL excitation carrier, it can send a scheduling instruction to the terminal device through downlink control information (DCI). Correspondingly, the terminal device can receive the scheduling instruction sent from the network device through the DCI. The scheduling instruction may include related parameters of the UL excitation carrier, such as the time-frequency resource, waveform, power, etc. where the UL excitation carrier is located. Of course, the relevant parameters of the UL excitation carrier can also be determined by the terminal device itself. Among them, the scheduling instruction is used to instruct the terminal equipment to send the parameters of the UL excitation carrier, and the scheduling instruction can be scrambled through the AmBC RNTI of the terminal equipment. Further, optionally, the terminal device may descramble the scheduling instruction according to AmBC RNTI, and send the UL excitation carrier to the network device according to the descrambling scheduling instruction. For example, the terminal device may send the UL excitation carrier to the network device on the scheduled time-frequency resource.

When the network device determines that the scheduled AmBC carrier is a regular UL/DL signal, the network device can perform scheduling according to the regular cellular data UL/DL scheduling process.

When the network device determines that the scheduled AmBC carrier is a DL excitation carrier, the network device can transmit the DL excitation carrier on the scheduled time-frequency resource.

It can be seen from the above steps 401 to 403 that the network device can implement AmBC carrier scheduling according to the AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool. In other words, this application provides a scheduling scheme for AmBC carriers in the AmBC communication network.

Based on the foregoing content and the same concept, the present application provides a communication device for executing any solution on the network device side in the foregoing method flow. Fig. 5 exemplarily shows a schematic structural diagram of a communication device provided by the present application. The communication device in this example may be the network device 500, which may execute the solution corresponding to the network device in FIG. 4 described above. The network device 500 may also be the network device in FIG. 1 described above. As shown in FIG. 5, the network device 500 includes:

The transceiver unit 502 is configured to receive environmental backscatter communication AmBC capability information and measurement information of the AmBC resource pool reported from the terminal device. The AmBC capability information includes the uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the terminal device Communication quality in AmBC communication. The processing unit 501 is configured to perform AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool.

The processing unit 501 is specifically configured to determine that the AmBC carrier scheduling trigger condition is met or receive the AmBC carrier scheduling request from the terminal device through the receiver, determine the AmBC carrier scheduling strategy according to the measurement information of the AmBC resource pool; and according to the AmBC carrier scheduling strategy, The scheduled AmBC carrier is scheduled, where the AmBC carrier scheduling strategy includes one or more of the type of the scheduled AmBC carrier, the terminal equipment associated with the scheduled AmBC carrier, and the time-frequency resource where the scheduled AmBC carrier is located.

In a possible implementation manner, the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the AmBC resource pool. The processing unit 501 is specifically configured to determine that the AmBC carrier scheduling trigger condition is met if it is determined that the average value of the received power is less than the threshold value.

In a possible implementation, the transceiver unit 502 is also used to send AmBC configuration information to the terminal device. The AmBC configuration information includes the AmBC RNTI of the terminal device in AmBC communication; the transceiver unit 502 cooperates with the processing unit 501 and is also used for When it is determined that the type of the scheduled AmBC carrier is the uplink excitation carrier, the scheduling instruction is sent to the terminal device through the downlink control information DCI. The scheduling instruction is used to instruct the terminal device to send the parameters of the uplink excitation carrier, and the scheduling instruction is added through the AmBC RNTI of the terminal device. Disturb.

In a possible implementation, the transceiver unit 502 is further configured to send instruction information to the terminal device. The instruction information is used to instruct the terminal device to measure the AmBC resource pool, where the instruction information includes the waiting information in the AmBC resource pool to be measured. The measured carrier and the measured quantity, for example, the time-frequency resource on the to-be-measured carrier and/or the average value of the received power on the to-be-measured carrier in the AmBC resource pool to be measured.

It should be understood that the processing unit 501 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver unit 502 may be implemented by a transceiver or a transceiver-related circuit component.

Based on the foregoing content and the same concept, the present application provides a communication device for executing any solution on the terminal device side in the foregoing method flow. Fig. 6 exemplarily shows a schematic structural diagram of a communication device provided by the present application. For example, the communication device in this example may be the terminal device 600, and the solution corresponding to the terminal device in FIG. 4 may be executed. The terminal device 600 may also be the terminal device of the first type and the terminal device of the second type in FIG. 1 described above. As shown in FIG. 6, the terminal device 600 includes:

The processing unit 601 is configured to report AmBC capability information and measurement information of the AmBC resource pool to the network device. The transceiver unit 602 is used to determine the AmBC capability information of backscatter communication and the measurement information of the AmBC resource pool. The AmBC capability information includes the uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the communication of the terminal device in the AmBC communication quality.

In a possible implementation manner, the processing unit 601 is further configured to, according to the measurement information of the AmBC resource pool, determine that the AmBC carrier scheduling trigger condition is met, send an AmBC carrier scheduling request to the network device through the transceiver, and the AmBC carrier scheduling request is used for Request network equipment to perform AmBC carrier scheduling.

In a possible implementation manner, the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the AmBC resource pool. The processing unit 601 is specifically configured to determine that the AmBC carrier scheduling trigger condition is met if it is determined that the average value of the received power is less than the threshold value.

In a possible implementation, the transceiver unit 602 is also used to receive AmBC configuration information from the network device. The AmBC configuration information includes the AmBC wireless network temporary identification RNTI of the terminal device in AmBC communication; The scheduling instruction sent by the information DCI, the scheduling instruction is obtained by scrambling through the AmBC RNTI of the terminal device when the network device determines that the type of the scheduled AmBC carrier is the uplink excitation carrier. The processing unit 601 is further configured to descramble the scheduling instruction according to AmBC RNTI, and send the uplink excitation carrier to the network device according to the descrambling scheduling instruction.

In a possible implementation, the transceiver unit 602 is further configured to receive indication information from a network device. The indication information includes the carrier to be measured in the AmBC resource pool to be measured and the measurement quantity, for example, the carrier to be measured in the AmBC resource pool. The average value of the time-frequency resources and/or the received power on the carrier to be measured. The processing unit 601 is further configured to measure the time-frequency resource where the carrier to be measured is located in the AmBC resource pool and/or the average value of the received power of the carrier to be measured according to the indication information to obtain the measurement information of the AmBC resource pool.

It should be understood that the processing unit 601 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver unit 602 may be implemented by a transceiver or a transceiver-related circuit component.

When the communication device is a network device, FIG. 7 exemplarily shows a schematic structural diagram of a network device provided by the present application. As shown in FIG. 7, the network device 700 includes one or more remote radio units. unit (RRU) 701 and one or more baseband units (BBU) 702. The RRU 701 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 7011 and a radio frequency unit 7012. The RRU701 part is mainly used for the transceiver of radio frequency signals and the conversion between radio frequency signals and baseband signals. The BBU702 part can be called a processing unit, a processor, etc., which is mainly used for baseband processing, such as channel coding, multiplexing, modulation, spread spectrum, etc., and is also used to control network equipment. RRU701 and BBU702 can be physically set together; they can also be physically separated, that is, distributed network equipment.

In an example, the BBU702 can be composed of one or more single boards, and multiple single boards can jointly support a single access standard radio access network (such as an LTE network), or can separately support different access standards radio access network. The BBU702 also includes a memory 7022 and a processor 7021. The memory 7022 is used to store necessary instructions and data. The processor 7021 is configured to control the network device to perform necessary actions, for example, to control the network device to execute the method executed by the network device in any of the foregoing embodiments. The memory 7022 and the processor 7021 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, there are necessary circuits on each board.

On the uplink, the antenna 7011 receives the uplink signal (including data, etc.) sent by the communication device, and on the downlink, the antenna 7011 sends the downlink signal (including data and/or control information) to the communication device. In the processor 7021, service data and signaling messages are processed, and these units are processed according to the radio access technology adopted by the radio access network (for example, LTE, NR, and access technologies of other evolved systems). The processor 7021 is also used to control and manage the actions of the network device, and is used to execute the processing performed by the network device in the foregoing embodiment. The processor 7021 is also configured to support the network device to execute the method executed by the network device in FIG. 4.

It can be understood that FIG. 7 only shows a simplified design of the network device. In practical applications, the network equipment may include any number of antennas, memories, processors, radio frequency units, RRUs, BBUs, etc., and all network equipment that can implement the application are within the protection scope of the application.

In the embodiment of this application, taking RRU701 as a transceiver as an example, and BBU702 as an example as a processor, the processor 7021 in the network device 700 can be used to read computer instructions in the memory 7022 to execute according to AmBC capability information And the measurement information of the AmBC resource pool, and perform AmBC carrier scheduling. The transceiver is used to receive the environmental backscatter communication AmBC capability information reported by the terminal equipment and the measurement information of the AmBC resource pool. The AmBC capability information includes the uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the terminal equipment in the AmBC communication The quality of communication in.

The processor 7021 can also implement any detailed functions of the network device in the method embodiment shown in FIG. 4, which will not be described in detail here, and the processing steps performed by the network device in the method embodiment shown in FIG. 4 may be referred to. In an embodiment, the processor may independently implement the various methods in the foregoing embodiments, where the transceiver unit or the specific transceiver may also be one or more pins of the processor's input and output.

It should be understood that the processor mentioned in the embodiments of this application may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), and ready-made programmable gate arrays. Field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage unit) is integrated in the processor.

It should be noted that the memories described in this application are intended to include, but are not limited to, these and any other suitable types of memories.

When the communication device is a terminal device, FIG. 8 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate. In Fig. 8, the terminal device is a mobile phone as an example. As shown in FIG. 8, the terminal device 800 includes a processor, a memory, a control circuit, and an antenna. The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program. For example, it is used to support the terminal device 800 to execute any of the above-mentioned embodiments by the terminal device 800. Method of execution. The memory is mainly used to store software programs and data. The control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device 800, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data . Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

For ease of description, FIG. 8 only shows a memory and a processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this application.

As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal device 800. Execute the software program and process the data of the software program. The processor in FIG. 8 integrates the functions of the baseband processor and the central processing unit. It should be noted that the baseband processor and the central processing unit may also be independent processors, which are interconnected by technologies such as a bus. It should be noted that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device 800 may include multiple central processors to enhance its processing capabilities, and the components to be measured of the terminal device 800 may be connected through various buses. . The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In this application, the antenna and the control circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device. As shown in FIG. 8, the terminal device includes a transceiver unit 802 and a processing unit 801. The transceiving unit may also be called a transceiver, a transceiver, a transceiving device, etc., and a processing unit may also be called a processor, a processing board, a processing unit, a processing device, and the like. Optionally, the device used to implement the receiving function in the transceiver unit can be regarded as the receiving unit, and the device used to implement the transmitting function in the transceiver unit can be regarded as the transmitting unit, that is, the transceiver unit includes the receiving unit and the transmitting unit. The receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.

On the downlink, the antenna receives the downlink signal (including data and/or control information) sent by the network device, and on the uplink, the antenna sends the uplink signal (including data) to the network device or other terminal equipment. And/or control information). In the processor, service data and signaling messages are processed. These units are based on the radio access technology adopted by the radio access network (for example, LTE, NR and other evolved system access technologies) To deal with it. The processor is also used to control and manage the actions of the terminal device, and is used to execute the processing performed by the terminal device in the foregoing embodiment. The processor is also used to support the terminal device to execute the execution method involving the terminal device in FIG. 4.

It can be understood that FIG. 8 only shows a simplified design of the terminal device. In practical applications, the terminal device may include any number of antennas, memories, processors, etc., and all terminal devices that can implement this application are within the protection scope of this application.

It should be understood that the transceiving unit 802 is used to perform the sending and receiving operations on the terminal device side in the method embodiment shown in FIG. 4, and the processing unit 801 is used to perform the method embodiment shown in FIG. Operations other than operations.

For example, the transceiving unit 802 is configured to perform the transceiving steps on the terminal device side in the embodiment shown in FIG. 4, such as step 402. The processing unit 801 is configured to perform other operations on the terminal device side in the embodiment shown in FIG. 4 except for the receiving and sending operations, such as step 401.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.

Based on the above content and the same concept, the present application provides a communication system. The communication system may include the aforementioned one or more terminal devices and one or more network devices. The terminal device can execute any method on the terminal device side, and the network device can execute any method on the network device side. The possible implementation of the network equipment and terminal equipment can be found in the above introduction, which will not be repeated here.

It should be noted that the terms "first" and "second" in the specification embodiments and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. order. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusion, for example, including a series of steps or units. The method, system, product, or device need not be limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices. In addition, in this application, "and/or" is used to describe the association relationship of associated objects, indicating that there can be three types of relationships. For example, "A and/or B" can mean: only A exists, only B exists, and both There are three cases of A and B, where A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof, and when implemented by a software program, it may be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Instructions can be stored in a computer storage medium, or transmitted from one computer storage medium to another computer storage medium. For example, the instructions can be sent from a website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital user DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center. A computer storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. Usable media can be magnetic media (for example, floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical media (for example, CD, DVD, BD, HVD, etc.), or semiconductor media (for example, ROM, EPROM, EEPROM, etc.) Non-volatile memory (NAND FLASH), solid state disk (Solid State Disk, SSD), etc.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiments of the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present application may adopt the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The embodiments of the present application are described with reference to the flowcharts and/or block diagrams of the methods, equipment (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by instructions. These instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated for realization A device with a function specified in a flow or multiple flows in a flowchart and/or a block or multiple blocks in a block diagram.

These instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device, and the instruction device implements A function specified in a flow or multiple flows in a flowchart and/or a block or multiple blocks in a block diagram.

These instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so that the instructions executed on the computer or other programmable equipment provide Steps used to implement the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

A method for scheduling carriers in a symbiotic network, which is characterized in that it includes:

The network device receives the environmental backscatter communication AmBC capability information reported by the terminal device and the measurement information of the AmBC resource pool, where the AmBC capability information includes the uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify the The communication quality of terminal equipment in AmBC communication;

The network device performs AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool.
The method according to claim 1, wherein the AmBC capability information further includes the type of the terminal device and/or the location information of the terminal device;

Wherein, the types of the terminal equipment include the first type and the second type. The first type of terminal equipment has a cellular communication capability and an uplink excitation carrier transmission capability, and the second type of terminal equipment has a cellular communication capability and an uplink excitation carrier. Launch capability and AmBC communication capability.
The method according to claim 1 or 2, wherein the network device performs AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool, comprising:

The network device determines that the AmBC carrier scheduling trigger condition is satisfied or receives an AmBC carrier scheduling request from the terminal device, and determines the AmBC carrier scheduling strategy according to the measurement information of the AmBC resource pool, where the AmBC carrier scheduling strategy Including one or more of the type of the scheduled AmBC carrier, the terminal equipment associated with the scheduled AmBC carrier, and the time-frequency resource where the scheduled AmBC carrier is located;

The network device performs AmBC carrier scheduling according to the AmBC carrier scheduling strategy.
The method according to claim 3, wherein the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the AmBC resource pool;

The network device determining that the AmBC carrier scheduling trigger condition is satisfied includes:

If the network device determines that the average value of the received power is less than the threshold value, it determines that the AmBC carrier scheduling trigger condition is satisfied.
The method according to claim 3 or 4, wherein the method further comprises:

The network device sends AmBC configuration information to the terminal device, where the AmBC configuration information includes the AmBC wireless network temporary identifier RNTI of the terminal device in AmBC communication;

When the network device determines that the type of the scheduled AmBC carrier is an uplink excitation carrier, it sends a scheduling instruction to the terminal device through downlink control information DCI, where the scheduling instruction is used to instruct the terminal device to send the uplink excitation The parameter of the carrier, the scheduling instruction is scrambled by the AmBC RNTI of the terminal device.
The method according to any one of claims 1 to 5, wherein the method comprises:

The network device sends instruction information to the terminal device, where the instruction information is used to instruct the terminal device to measure the AmBC resource pool, where the instruction information includes the carrier to be measured in the AmBC resource pool And the measurement volume.
A method for scheduling carriers in a symbiotic network, which is characterized in that it includes:

The terminal device determines backscatter communication AmBC capability information and measurement information of the AmBC resource pool, where the AmBC capability information includes uplink excitation carrier transmission capability, and the measurement information of the AmBC resource pool is used to identify that the terminal device is in AmBC communication Quality of communication;

The terminal device reports the AmBC capability information and the measurement information of the AmBC resource pool to the network device.
The method according to claim 7, wherein the AmBC capability information further includes the type of the terminal device and/or the location information of the terminal device;

Wherein, the types of the terminal equipment include the first type and the second type. The first type of terminal equipment has a cellular communication capability and an uplink excitation carrier transmission capability, and the second type of terminal equipment has a cellular communication capability and an uplink excitation carrier. Launch capability and AmBC communication capability.
The method according to claim 7 or 8, wherein the method further comprises:

When the terminal device determines that the AmBC carrier scheduling trigger condition is satisfied according to the measurement information of the AmBC resource pool, the terminal device sends an AmBC carrier scheduling request to the network device. The AmBC carrier scheduling request is used to request the network device to perform AmBC carrier scheduling. Scheduling.
The method according to claim 9, wherein the measurement information of the AmBC resource pool includes the average value of the received power of the terminal device on the carrier to be measured in the AmBC resource pool;

The terminal device determining that the AmBC carrier scheduling trigger condition is satisfied according to the measurement information of the AmBC resource pool includes:

If the terminal device determines that the average value of the received power is less than the threshold value, it determines that the AmBC carrier scheduling trigger condition is satisfied.
The method according to claim 9 or 10, wherein the method further comprises:

The terminal device receives AmBC configuration information from the network device, where the AmBC configuration information includes the AmBC wireless network temporary identifier RNTI of the terminal device in AmBC communication;

The terminal device receives a scheduling instruction sent from the network device through the downlink control information DCI, where the scheduling instruction is when the network device determines that the type of the scheduled AmBC carrier is an uplink excitation carrier, through the terminal device Obtained by scrambling by AmBC RNTI;

The terminal device descrambles the scheduling instruction according to the AmBC RNTI, and sends the uplink excitation carrier to the network device according to the descrambling scheduling instruction.
The method according to any one of claims 7 to 11, wherein the method further comprises:

Receiving, by the terminal device, indication information from the network device, where the indication information includes the carrier to be measured in the AmBC resource pool and the measurement quantity;

The terminal device measures the AmBC resource pool according to the instruction information to obtain measurement information of the AmBC resource pool.
A communication device, characterized in that it comprises a transceiver and a processor;

The transceiver is configured to receive environmental backscatter communication AmBC capability information and measurement information of an AmBC resource pool reported from a terminal device, where the AmBC capability information includes uplink excitation carrier transmission capability, and measurement information of the AmBC resource pool Used to identify the communication quality of the terminal device in AmBC communication;

The processor is configured to perform AmBC carrier scheduling according to the AmBC capability information and the measurement information of the AmBC resource pool.
The communication device according to claim 13, wherein the AmBC capability information further includes the type of the terminal device and/or the location information of the terminal device;

Wherein, the types of the terminal equipment include the first type and the second type. The first type of terminal equipment has a cellular communication capability and an uplink excitation carrier transmission capability, and the second type of terminal equipment has a cellular communication capability and an uplink excitation carrier. Launch capability and AmBC communication capability.
The communication device according to claim 13 or 14, wherein the processor is specifically configured to:

It is determined that the AmBC carrier scheduling trigger condition is satisfied or the AmBC carrier scheduling request from the terminal device is received through a receiver, and the AmBC carrier scheduling strategy is determined according to the measurement information of the AmBC resource pool, where the AmBC carrier scheduling strategy includes One or more of the type of the scheduled AmBC carrier, the terminal equipment associated with the scheduled AmBC carrier, and the time-frequency resource where the scheduled AmBC carrier is located;

According to the AmBC carrier scheduling strategy, AmBC carrier scheduling is performed.
The communication device according to claim 15, wherein the measurement information of the AmBC resource pool includes the average value of the received power of the terminal equipment on the carrier to be measured in the AmBC resource pool;

The processor is specifically used for:

If it is determined that the average value of the received power is less than the threshold value, it is determined that the AmBC carrier scheduling trigger condition is satisfied.
The communication device according to claim 15 or 16, wherein the transceiver is further used for:

Sending AmBC configuration information to the terminal device, where the AmBC configuration information includes the AmBC wireless network temporary identifier RNTI of the terminal device in AmBC communication;

The processor cooperates with the transceiver and is further configured to determine that when the type of the scheduled AmBC carrier is an uplink excitation carrier, send a scheduling instruction to the terminal device through downlink control information DCI, and the scheduling instruction is used for Instruct the terminal device to send the parameters of the uplink excitation carrier, and the scheduling instruction is scrambled through the AmBC RNTI of the terminal device.
The communication device according to any one of claims 13 to 17, wherein the transceiver is further used for:

Send instruction information to the terminal device, where the instruction information is used to instruct the terminal device to measure the AmBC resource pool, where the instruction information includes the carrier to be measured in the AmBC resource pool and the measurement amount.
A communication device, characterized in that it comprises a processor and a transceiver:

The processor is configured to determine backscatter communication AmBC capability information and AmBC resource pool measurement information, where the AmBC capability information includes uplink excitation carrier transmission capability, and the AmBC resource pool measurement information is used to identify the terminal The communication quality of the device in AmBC communication;

The transceiver is configured to report the AmBC capability information and the measurement information of the AmBC resource pool to a network device.
The communication device according to claim 19, wherein the AmBC capability information further includes the type of the terminal device and/or the location information of the terminal device;

Wherein, the types of the terminal equipment include the first type and the second type. The first type of terminal equipment has a cellular communication capability and an uplink excitation carrier transmission capability, and the second type of terminal equipment has a cellular communication capability and an uplink excitation carrier. Launch capability and AmBC communication capability.
The communication device according to claim 19 or 20, wherein the processor is further configured to:

According to the measurement information of the AmBC resource pool, when it is determined that the AmBC carrier scheduling trigger condition is satisfied, an AmBC carrier scheduling request is sent to the network device through the transceiver, and the AmBC carrier scheduling request is used to request the network device to perform AmBC Carrier scheduling.
The communication device according to claim 21, wherein the measurement information of the AmBC resource pool includes the average value of the received power of the terminal equipment on the carrier to be measured in the AmBC resource pool;

The processor is specifically used for:

If it is determined that the average value of the received power is less than the threshold value, it is determined that the AmBC carrier scheduling trigger condition is satisfied.
The communication device according to claim 21 or 22, wherein the transceiver is further used for:

Receiving AmBC configuration information from the network device, where the AmBC configuration information includes the AmBC wireless network temporary identifier RNTI of the terminal device in AmBC communication;

Receive a scheduling instruction sent from the network device through the downlink control information DCI, where the scheduling instruction is performed by the terminal device's AmBC RNTI when the network device determines that the type of the scheduled AmBC carrier is an uplink excitation carrier Scrambled

The processor is further configured to descramble the scheduling instruction according to the AmBC RNTI, and send the uplink excitation carrier to the network device according to the descrambling scheduling instruction.
The communication device according to any one of claims 19 to 23, wherein the transceiver is further used for:

Receiving indication information from the network device, where the indication information includes the carrier to be measured and the measurement amount in the AmBC resource pool;

The processor is further configured to measure the AmBC resource pool according to the instruction information to obtain measurement information of the AmBC resource pool.
A computer storage medium, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1-12.
A computer program product, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1-12.