WO2022077796A1

WO2022077796A1 - Communication method and apparatus

Info

Publication number: WO2022077796A1
Application number: PCT/CN2021/073398
Authority: WO
Inventors: 谢宗慧; 单宝堃; 陈磊
Original assignee: 华为技术有限公司
Priority date: 2020-10-15
Filing date: 2021-01-22
Publication date: 2022-04-21
Also published as: WO2022077375A1; CN115997444A

Abstract

A communication method and apparatus. Said method comprises: an access network device determining first frequency domain information; a terminal device determining the first frequency domain information; the access network device sending a first message to the terminal device on a resource corresponding to the first frequency domain information; and the terminal device receiving the first message from the access network device on the resource corresponding to the first frequency domain information, the first frequency domain information being frequency domain information corresponding to first requirement information in a preset correlation, and the first requirement information being used to indicate a resource requirement when the terminal device and the access network device transmit a message. The technical solution is helpful to solve the problem that the manner of a terminal device determining, on the basis of a random principle, to receive a paged carrier cannot be applied to service features of the terminal device.

Description

A communication method and device

This application claims the priority of the PCT patent application filed on October 15, 2020 with the Intellectual Property Office of the People's Republic of China, the application number is PCT/CN2020/121270, and the invention title is "a communication method and device", the entire content of which is approved by Reference is incorporated in this application.

technical field

The present application relates to the field of wireless communication technologies, and in particular, to a communication method and apparatus.

Background technique

In an existing narrowband-internet of things (NB-IoT) system, a terminal device determines a carrier for receiving paging based on a random principle (eg, based on an identification of the terminal device). Since the channel quality of carriers in different frequency domains is different, if the terminal device wants to successfully receive the paging information of carriers in different frequency domains, it needs to determine the maximum number of repetitions for receiving the corresponding carrier for the carriers in different frequency domains, and based on the maximum number of repetitions Receive paging information on the corresponding carrier.

When terminal devices have different service characteristics, they may be in different coverage situations. Exemplarily, the terminal device 1 is used to implement terrestrial services, and since it is deployed on the ground, the coverage is good. The terminal device 2 is used to implement underground services, and because it is deployed underground, the coverage is poor. The maximum number of repetitions required for paging the terminal device 2 by a carrier in the same frequency domain needs to be greater than the maximum number of repetitions required for paging the terminal device 1 . In the prior art, the manner in which the terminal equipment determines the carrier for receiving paging based on the random principle is not suitable for the service characteristics of the terminal equipment.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a communication method and apparatus, which are used to solve the problem that the manner in which a terminal device determines frequency domain resources for receiving paging based on a random principle cannot be adapted to service characteristics of the terminal device.

In a first aspect, the present application provides a communication method, and the communication method can be executed by an access network device, or a module in the access network device, such as a chip.

In a possible implementation manner, the method includes: determining first frequency domain information, where the first frequency domain information is frequency domain information corresponding to the first requirement information in a preset correspondence, and the first requirement The information is used to indicate the resource requirement when the terminal device transmits the message; the first message is sent to the terminal device on the resource corresponding to the first frequency domain information. In this implementation manner, the resource corresponding to the first frequency domain information can meet the first requirement information, and the access network device and the terminal device transmit the first message on the resource corresponding to the first frequency domain information, so as to avoid the occurrence of the access network device and the terminal device. The problem that the frequency domain resources determined by the terminal equipment do not match the service characteristics of the terminal equipment.

In a possible implementation manner, the first message is used for paging the terminal device. In this implementation manner, the access network device pages the terminal device on the resource corresponding to the first frequency domain information, and the first message is downlink control information (DCI) or paging message (paging message) for paging ), the resources corresponding to the first frequency domain information can meet the first demand information, and the paging downlink control information or paging messages are transmitted on the resources corresponding to the first frequency domain information, which are suitable for the service characteristics of the terminal equipment and help to improve the The success rate of the access network equipment paging the terminal equipment, and the problem of avoiding the waste of resources or the large delay when the terminal equipment receives the first message.

In a possible implementation manner, the first requirement information is requirement information from a core network device or a terminal device or a first access network device.

In a possible implementation manner, the first demand information is a first demand level from a core network device, and the first frequency domain information is a frequency domain corresponding to the first demand level in the preset correspondence information.

In a possible implementation manner, the first demand level includes one or more of a delay demand level, a coverage demand level, and a paging probability level. In this implementation manner, based on the service characteristics of the terminal device, the terminal device's requirement for one or more of delay, coverage, and paging probability is determined as the first requirement information, and the access network device and the terminal device are based on the first requirement. When the first frequency domain information is determined by the information and the preset correspondence, the determined first frequency domain information can be better used for transmitting the first message, that is, the determined first frequency domain information is more suitable for service characteristics of the terminal device .

In a possible implementation manner, the first requirement information is a first requirement parameter from the terminal device, and the first frequency domain information is that the corresponding transmission parameter in the preset correspondence relationship meets the first requirement. Frequency domain information for parameters.

In a possible implementation manner, the transmission parameters include M reference transmission parameters, the M reference transmission parameters correspond to M priorities respectively, and the N reference transmission parameters corresponding to the first frequency domain information meet the requirements of the For the first requirement parameter, the N priorities corresponding to the N reference transmission parameters are the first N priorities of the M priorities in descending order, N is less than or equal to M, and N is a positive integer.

In a possible implementation, the first requirement parameter includes one or more of the following parameters: maximum number of repetitions, reference signal received power (reference signal received power, RSRP), coverage enhancement level, discontinuous reception (discontinuous reception) , DRX) cycle, wake-up signal (wake-up signal, WUS) enable identification, paging opportunity density, power boost capability. In this implementation manner, the service characteristics of the terminal equipment are different, and the channel quality between them and the access network equipment is different, that is, the service characteristics of the terminal equipment are substantially associated with the channel quality of the terminal equipment, and based on the channel quality of the terminal equipment, A demand parameter associated with the channel quality of the terminal device is determined, and the demand parameter is used as the first demand information. When the access network device and the terminal device determine the first frequency domain information based on the first demand information and the preset corresponding relationship, determine the The first frequency domain information can be better used to transmit the first message, that is, the determined first frequency domain information is more suitable for the service characteristics of the terminal device.

In a possible implementation manner, the method further includes: receiving first request information from the terminal device, where the first request information includes first indication information, and the first indication information is used to update the The first demand parameter; sending the second demand parameter to the terminal device, where the second demand parameter is the updated first demand parameter. Optionally, the first indication information is a second requirement parameter. In this implementation manner, the terminal device may send first request information to the access network device, where the first request information instructs the access network device to update the first demand parameter, and the updated first demand parameter (second demand parameter) may be relatively accurate When the access network device and the terminal device determine the first frequency domain information based on the updated first demand parameter and the preset corresponding relationship, the determined first frequency domain information can be better for transmitting the first message.

In a possible implementation manner, the terminal device is in a radio resource control (radio resource control, RRC) inactive state, and the context of the terminal device is stored in the first access network device; the first requirement information is The demand information from the first access network device includes: requesting the first access network device for the context of the terminal device, where the context of the terminal device includes the first demand information; receiving information from the first access network device The context of the terminal device of an access network device. In this implementation manner, the terminal device is in the RRC inactive state, and if the terminal device moves to the coverage of the second access network device, the second access network device may request the first access network device to include the first requirement The context of the terminal equipment of the information helps the second access network equipment to determine, based on the first requirement information, the first frequency domain information suitable for the service characteristics or channel quality of the terminal equipment.

In a possible implementation manner, the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum number of repetitions, DRX cycle, WUS enable identifier, paging opportunity density, power boost sending a first message to the terminal device on the resource corresponding to the first frequency domain information, including: the access network device, on the frequency domain resource included in the first frequency domain information, using The transmission parameter corresponding to the frequency domain resource sends the first message to the terminal device.

In a possible implementation manner, the method further includes: sending the preset correspondence to the terminal device.

In a second aspect, the present application provides a communication method, and the communication method can be executed by a terminal device, or a module, such as a chip, in the terminal device.

In a possible implementation manner, the method includes: determining first frequency domain information, where the first frequency domain information is frequency domain information corresponding to the first requirement information in a preset correspondence, and the first requirement The information is used to indicate resource requirements when transmitting a message with the access network device; the terminal device receives the first message from the access network device on the resource corresponding to the first frequency domain information.

In a possible implementation manner, the first message is used for paging the terminal device.

In a possible implementation manner, the first demand level includes one or more of a delay demand level, a coverage demand level, and a paging probability level.

In a possible implementation manner, the method further includes: sending second request information to the core network device, where the second request information includes second indication information, and the second indication information is used to update the The first demand level; the terminal device receives the second demand level from the core network device, where the second demand level is the updated first demand level. Optionally, the second indication information is a second demand level.

In a possible implementation manner, the first demand information is a first demand parameter sent by the terminal device to the access network device, and the first frequency domain information is the corresponding transmission in the preset correspondence relationship. The parameter satisfies the frequency domain information of the first requirement parameter.

In a possible implementation manner, the transmission parameters include M reference transmission parameters, the M reference transmission parameters correspond to M priorities respectively, and the N reference transmission parameters corresponding to the first frequency domain information conform to the For the first requirement parameter, the N priorities corresponding to the N reference transmission parameters are the first N priorities of the M priorities in descending order, N is less than or equal to M, and N is a positive integer.

In a possible implementation manner, the first requirement parameter includes one or more of the following parameters: maximum repetition times, RSRP, coverage enhancement level, DRX cycle, WUS enable identifier, paging occasion density, and power boost capability.

In a possible implementation manner, the method further includes: sending first request information to the access network device, where the first request information includes first indication information, and the first indication information is used to update all the first demand parameter; the terminal device receives the second demand parameter from the access network device, where the second demand parameter is the updated first demand parameter. Optionally, the first indication information is a second requirement parameter.

In a possible implementation manner, the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum number of repetitions, DRX cycle, WUS enable identifier, paging opportunity density, power boost capability; the receiving the first message from the access network device on the resource corresponding to the first frequency domain information includes: on the frequency domain resource included in the first frequency domain information, The first message from the access network device is received by using the transmission parameter corresponding to the frequency domain resource.

In a possible implementation manner, the method further includes: receiving the preset correspondence from the access network device.

In a third aspect, the present application provides a communication method, and the communication method can be executed by a core network device, or a module, such as a chip, in the core network device.

In a possible implementation manner, the method includes: determining first requirement information, where the first requirement information is used to indicate the resource requirement when the terminal device and the access network device transmit messages; sending a message to the access network device the first demand information.

In a possible implementation manner, the first demand information is a first demand level, and the first demand level includes one or more of a delay demand level, a coverage demand level, and a paging probability level.

In a possible implementation manner, the determining the first demand information includes: receiving a first demand level requested by the terminal device, determining the first demand level as the first demand information, and sending the first demand level to the terminal device. receive the info.

In a possible implementation manner, the method further includes: receiving second request information from the terminal device, where the second request information includes second indication information, and the second indication information is used to update the A first demand level; sending a second demand level to the terminal device, where the second demand level is the updated first demand level. Optionally, the second indication information is a second demand level.

In a possible implementation manner, the first requirement information is a first requirement parameter, and the first requirement parameter includes one or more of the following parameters: maximum number of repetitions, RSRP, coverage enhancement level, DRX cycle, WUS enable Ability to identify, paging timing density, power boost capability.

In a possible implementation manner, the context of the terminal device is stored in the first access network device, the context of the terminal device stores the first requirement parameter, and the determining the first requirement information includes: The first demand parameter is obtained from the first access network device.

In a fourth aspect, the present application provides a communication method, and the communication method can be executed by a terminal device, or a module, such as a chip, in the terminal device.

In a possible implementation manner, the method includes: determining a first channel state with an access network device; determining, according to the first channel state, monitoring frequency domain information for monitoring the first message; The first message from the access network device is received on the resource corresponding to the monitoring frequency domain information.

In the above technical solution, the terminal device determines the first channel state between the terminal device and the access network device, and determines the monitoring frequency domain information currently used to monitor the first message according to the first channel state, so as to be suitable for different channel states. Monitoring, improving the probability of monitoring paging success, helps to enhance the robustness of the system.

In a possible implementation manner, the determining, according to the first channel state, the monitoring frequency domain information for monitoring the first message includes: when the first channel state satisfies the first condition, determining the monitoring frequency domain information for monitoring the first message. The monitoring frequency domain information is the second frequency domain information, and the first condition includes: a first RSRP condition and/or a first number of times condition; the first RSRP condition includes any one or more of the following: The RSRP obtained by the reference signal of the access network device is less than the first threshold value; the variation range of the RSRP obtained by measuring the reference signal in the first time period is greater than the second threshold value; the first number of times conditions include the following Any one or more of: the maximum number of repetitions required to successfully decode the physical downlink control channel (PDCCH) is greater than the third threshold; the proportion of successfully decoded PDCCHs within the second time period is less than the fourth threshold ; In the third period, the WUS indicates that the number of times that the PDCCH is successfully decoded after the first message is present is less than the fifth threshold value; the number of repetitions required for the successful decoding of the PDCCH in the first DRX cycle is the same as the number of times that the PDCCH is successfully decoded in the second DRX cycle. The difference of the required repetition times is greater than the sixth threshold value, and the first DRX cycle is one DRX cycle before the second DRX cycle.

In the above technical solution, when the terminal device determines that the first channel state satisfies the first condition, it determines to use the second frequency domain information to monitor the first message, and the first condition indicates that the first channel state is poor. When the channel state is poor, the terminal device can monitor paging through the default frequency domain information (that is, the second frequency domain information) preconfigured by the access network device. Correspondingly, the access network device can use the default frequency domain information. information to page the terminal device, helping to increase the probability of successfully paging the terminal device.

In a possible implementation manner, the determining, according to the first channel state, the monitoring frequency domain information for monitoring the first message includes: when the first channel state satisfies the second condition, determining the The monitoring frequency domain information is third frequency domain information, and the second condition includes: a second RSRP condition and/or a second number of times condition; the second RSRP condition includes: measuring a reference signal from the access network device The obtained RSRP is greater than the seventh threshold value; the second number of times conditions include any one or more of the following: the maximum number of repetitions required for successfully decoding the PDCCH is less than the eighth threshold value; The ratio is greater than the ninth threshold; in the fifth period, the WUS indicates that the number of times the PDCCH is successfully decoded after the existence of the first message is greater than the tenth threshold.

In a possible implementation manner, the third frequency domain information is determined in the first cell provided by the access network device according to the first demand information and the preset corresponding relationship, and the first demand information is used It is used to indicate resource requirements when transmitting messages with the access network device.

In the above technical solution, when the terminal device determines that the first channel state satisfies the second condition, it determines to use the third frequency domain information to monitor the first message, and the second condition indicates that the first channel state is good, and the terminal device can select The first message is monitored through third frequency information. The third frequency domain information is of terminal device granularity. The third frequency domain information corresponding to different terminal devices is different, which helps to improve the utilization rate of the frequency domain information in the communication system.

In a possible implementation manner, after receiving the first message from the access network device on the resource corresponding to the monitoring frequency domain information, the method further includes: reselection from the second cell to the first cell ; in the case that the second channel state between the access network device and the access network device satisfies the second condition, receiving the first message from the access network device on the resource corresponding to the third frequency domain information.

In the above technical solution, when the terminal equipment moves from the first cell provided by the original access network equipment to other cells, the channel state between the terminal equipment and the access network equipment may change. The network access device can page the terminal device through the second frequency domain information. When the terminal device moves to the first cell again, the channel state between the terminal device and the access network device satisfies the second condition, and the terminal device uses the first cell again. Three frequency domain information to receive the first message of the access network device.

In a fifth aspect, the present application provides a communication method, and the communication method can be performed by an access network device, or a module in the access network device, such as a chip.

In a possible implementation manner, the method includes: in the case that the state of the third channel with the terminal device satisfies the third condition, determining the monitoring frequency domain information for sending the first message; The first message is sent to the terminal device on the resource corresponding to the domain information.

In a possible implementation manner, the method includes: the first message is used for paging a terminal device.

In a possible implementation manner, the method includes: the third channel state with the terminal device satisfying the third condition includes any one or more of the following: obtaining the first channel information of the terminal device from the core network device; Three indication information, the third indication information is used to indicate that the terminal device is in a static state; the fourth indication information of the terminal device is obtained from the terminal device, and the fourth indication information is used to indicate that the terminal device is in a static state Static state; the change amount of the third channel state in the sixth time period is less than the eleventh threshold value.

In the above technical solution, if the access network device determines that the terminal device is in a static state or that the channel state changes with the terminal device are small, it determines that a fixed frequency domain can be used to page the terminal device, for example, according to the first demand information. The third frequency domain information is determined with the preset corresponding relationship, and the terminal device is paged through the third frequency domain information. Alternatively, the terminal device may also be assigned a default frequency domain information (ie, the second frequency domain information), and the terminal device can be paged through the second frequency domain information.

In a sixth aspect, an embodiment of the present application provides a communication device, the device has the possibility of implementing the first aspect or any of the possible implementation manners of the first aspect, or the fifth aspect or the fifth aspect. The function of the access network device in the implementation manner of the device can be an access network device or a chip included in the access network device.

The apparatus may also have the function of a terminal device for implementing the second aspect or any possible implementation manner of the second aspect, or the fourth aspect or any possible implementation manner of the fourth aspect, and the apparatus may It is a terminal device, and it can also be a chip included in the terminal device.

The apparatus may also have the function of implementing the core network equipment in the third aspect or any possible implementation manner of the third aspect, and the apparatus may be core network equipment or a chip included in the core network equipment.

The functions of the above-mentioned apparatus may be implemented by hardware, or by executing corresponding software in hardware, and the hardware or software may include one or more modules or units or means corresponding to the above-mentioned functions.

In a possible implementation manner, the structure of the apparatus includes a processing unit and a communication unit, wherein the processing unit is configured to support the apparatus to perform the first aspect or any implementation manner of the first aspect, or the above Corresponding functions of the access network device in the fifth aspect or any possible implementation manner of the fifth aspect, or perform any implementation manner of the second aspect or the second aspect above, or the fourth aspect or the fourth aspect above. The corresponding functions of the terminal device in any possible implementation manner of the aspect, or perform the corresponding functions of the core network device in the third aspect or any one of the implementation manners of the third aspect. The communication unit is used to support communication between the device and other communication devices. For example, when the device is an access network device, it can send the first message to the terminal device on the resource corresponding to the first frequency domain information. The apparatus may also include a storage unit coupled to the processing unit, which stores program instructions and data necessary for the apparatus. As an example, the processing unit may be a processor, the communication unit may be a transceiver, and the storage unit may be a memory, and the memory may be integrated with the processor, or may be provided separately from the processor.

In another possible implementation manner, the structure of the apparatus includes a processor, and may also include a memory. The processor is coupled to the memory and can be used to execute computer program instructions stored in the memory to cause the apparatus to perform the method in the first aspect or any possible implementation of the first aspect above, or the second aspect or the second aspect above A method in any possible implementation manner of the aspect, or performing the method in any one implementation manner of the above-mentioned third aspect or the third aspect, or performing any one possible implementation in the above-mentioned fourth aspect or the fourth aspect The method in the mode, or the method in any possible implementation mode of the fifth aspect or the fifth aspect is performed. Optionally, the apparatus further includes a communication interface to which the processor is coupled. When the device is an access network device or a terminal device or a core network device, the communication interface may be a transceiver or an input/output interface; when the device is a chip included in the access network device or a chip or core included in the terminal device When the chip included in the network device is used, the communication interface may be an input/output interface of the chip. Optionally, the transceiver may be a transceiver circuit, and the input/output interface may be an input/output circuit.

In a seventh aspect, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a communication device, the above-mentioned first aspect or the first aspect is realized. A method in any possible implementation of one aspect, or a method in any possible implementation of the second aspect or the second aspect above, or a method in any possible implementation of the third aspect or the third aspect. method, or perform the method in the fourth aspect or any possible implementation manner of the fourth aspect, or perform the method in the fifth aspect or any possible implementation manner of the fifth aspect.

In an eighth aspect, the present application provides a computer program product, the computer program product includes a computer program or an instruction, when the computer program or instruction is executed by a communication device, the above-mentioned first aspect or any possible possibility of the first aspect is realized. The method in the implementation mode, or the method in the implementation mode of the second aspect or any possible implementation mode of the second aspect, or the method in the implementation mode of the third aspect or any possible implementation mode of the third aspect, or the implementation of the above-mentioned third aspect. The fourth aspect or the method in any possible implementation manner of the fourth aspect, or the method in the fifth aspect or any possible implementation manner of the fifth aspect.

In a ninth aspect, the present application provides a chip, comprising at least one processor and an interface; the interface is configured to provide program instructions or data for the at least one processor; the at least one processor is configured to execute the program line Instructions to implement the above first aspect or the method in any possible implementation manner of the first aspect, or implement the above second aspect or the method in any possible implementation manner of the second aspect, or implement the above third aspect or the third aspect The method in any possible implementation of the aspect, or the method in any possible implementation of the fourth aspect or the fourth aspect above, or the implementation of the fifth aspect or the fifth aspect. method in method.

In a tenth aspect, the present application provides a communication system, including an access network device for implementing the first aspect or any possible implementation manner of the first aspect, and an access network device for implementing the second aspect or any of the second aspect. A terminal device of a possible implementation manner, and a core network device for performing the above third aspect or any possible implementation manner of the third aspect, or performing the above fourth aspect or any possible implementation manner of the fourth aspect. method, or execute the method in the fifth aspect or any possible implementation manner of the fifth aspect.

For the technical effects that can be achieved in any one of the second aspect to the eighth aspect, reference may be made to the description of the beneficial effects in the first aspect, or the description of the beneficial effects in the fourth aspect, or the description of the beneficial effects in the fifth aspect. , and will not be repeated here.

Description of drawings

1 is a schematic diagram of a communication system architecture provided by the present application;

2 is a schematic diagram of a communication system architecture provided by the present application;

3 is a schematic diagram of allocating a BWP to a terminal device by an access network device provided by the present application;

4 is a schematic diagram of setting multiple carriers in an access network device provided by the present application;

5 is a schematic flowchart of a first communication method exemplarily provided by the present application;

6 is a schematic flowchart of a second communication method exemplarily provided by this application;

7 is a schematic flowchart of paging a terminal device in an RRC idle state provided by the present application;

8 is a schematic flowchart of paging a terminal device in an RRC inactive state provided by the present application;

9 is a schematic flowchart of a third communication method exemplarily provided by this application;

10 is another schematic flowchart of paging a terminal device in an RRC idle state provided by the present application;

FIG. 11 is another schematic flowchart of paging a terminal device in an RRC inactive state provided by the present application;

12 is a schematic flowchart of a fourth communication method exemplarily provided by this application;

13 is a schematic flowchart of a fifth communication method exemplarily provided by this application;

14 is a schematic structural diagram of a communication device provided by the application;

FIG. 15 is a schematic structural diagram of a communication device provided by the present application.

Detailed ways

Before introducing the embodiments of the present application, some terms in the embodiments of the present application will be explained first, so as to facilitate the understanding of those skilled in the art.

1) A terminal device, also known as a terminal, is an entity on the user side that is used to receive or transmit signals, and is used to send uplink signals to network devices or receive downlink signals from network devices. Included are devices that provide voice and/or data connectivity to a user, such as may include handheld devices with wireless connectivity, or processing devices connected to a wireless modem. The terminal equipment may 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), V2X terminal equipment, wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device), wearable devices, in-vehicle devices, etc.

As an example and not a limitation, in this embodiment of the present 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 the application of 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 worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs 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, if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as on-board terminal equipment. For example, the on-board terminal equipment is also called on-board unit (OBU). ).

2) The core network, which may include network equipment that processes and forwards user signaling and data. For example, it includes core network equipment such as mobility management function (access and mobility management function, AMF), session management function (session management function, SMF), and user plane gateway. The user plane gateway can be a server with functions such as mobility management, routing, and forwarding of user plane data, and is generally located on the network side, such as serving gateway (serving gateway, SGW) or packet data network gateway (packet data network gateway, PGW) ) or user plane function entity (user plane function, UPF), etc. AMF and SMF are equivalent to mobility management entities (mobility management entities, MMEs) in the LTE system. AMF is mainly responsible for access, SMF is mainly responsible for session management. Of course, the core network may also include other network elements, which are not listed here.

3), a next generation radio access network (NG-RAN), which may include one or more access network devices. The access network device in the NG-RAN may also be called a base station, or a RAN node, or a RAN device. The access network device is an entity on the network side for transmitting and/or receiving signals, and acts as a router between the terminal and the rest of the access network, where the rest of the access network may include an IP network and the like. The access network equipment can also coordinate the attribute management of the air interface. For example, the access network equipment may be an evolutional Node B (evolutional Node B, eNB or e-NodeB) in LTE, and an eNB is a device deployed in a radio access network that meets the 4G standard and provides a wireless communication function for a terminal. The access network device may also be a new radio controller (new radio controller, NR controller), a gNode B (gNB) in a 5G system, a centralized unit, a new wireless base station, or a It is a remote radio module, which can be a micro base station (also called a small cell), a relay, a distributed unit, a macro base station in various forms, a transmission and reception A transmission reception point (TRP), a transmission measurement function (TMF) or a transmission point (TP), or any other wireless access device, or a base station in next-generation communications, but the embodiments of this application do not limited to this.

4) RRC state, the terminal device has three RRC states: RRC connected state (connected state), RRC idle state (idle state) and inactive state (inactive state).

RRC connected state (or, it can also be referred to as connected state. In this paper, "connected state" and "RRC connected state" are the same concept, and the two terms can be interchanged), which refers to the connection between a terminal device and an access network device. The logical connection that exists in the RRC layer, the terminal equipment and the access network equipment save the context of the terminal equipment (UE context), in this state, the terminal equipment can perform uplink or downlink data and signaling transmission with the access network equipment.

RRC idle state (or, can also be referred to as idle state. In this paper, "idle state" and "RRC idle state" are the same concept, and the two terms can be interchanged), which refers to the connection between the terminal equipment and the access network equipment. There is no logical connection at the RRC layer, and the terminal device cannot perform uplink or downlink data and signaling transmission with the access network device. In this state, the terminal device can only receive paging information and system information sent by the access network device. Down paging is initiated by core network equipment.

RRC inactive state (or, may also be referred to simply as inactive state. In this document, "deactivated state", "deactivated state", "inactive state", "RRC inactive state" and "RRC deactivated state" , is the same concept, these several names can be interchanged), which means that there is no logical connection of the RRC layer between the terminal equipment and the access network equipment, and the terminal equipment cannot perform uplink or downlink data and signaling transmission with the access network equipment. , but the context of the end device and core network device remains. In this state, the terminal device can only receive the paging information and system information sent by the access network device. In this state, the paging is initiated by the RAN.

5) Discontinuous reception (DRX) is divided into idle state DRX (Idle DRX, I-DRX) and connected state DRX (Connected DRX, C-DRX). Among them, the terminal equipment using the idle state DRX does not need to continuously monitor the paging information, which can achieve the purpose of reducing the power consumption of the terminal equipment. The connected state DRX indicates that the terminal device does not need to continuously monitor and schedule the control information of the uplink/downlink data, which can achieve the purpose of reducing the power consumption of the terminal device.

FIG. 1 shows the architecture of a possible communication system to which the communication method provided by the embodiment of the present application is applicable, and the communication system may include a network device and a terminal. The embodiments of the present application do not limit the number of network devices and terminals included in the communication system.

1 exemplarily includes 6 terminals, which are terminal 1 to terminal 6 respectively. FIG. 1 is only a schematic diagram, the communication system may also include other network devices, such as core network devices, wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 . Among them, the network device can provide wireless access-related services for the terminal, and implement one or more of the following functions: wireless physical layer function, resource scheduling and wireless resource management, quality of service (Quality of service, QoS) management , wireless access control and mobility management functions. The terminal can communicate with the network device through the air interface.

In this communication system, the terminal 1 to the terminal 6 can send the uplink information to the network device, and the network device can send the downlink information to the terminal 1 to the terminal 6 .

In addition, the terminal 4, the terminal 5, and the terminal 6 may also form a communication system. In this communication system, the network device can send downlink information to the terminal 4 , the terminal 5 , and the terminal 6 . The network device can also send downlink information to the terminal 4 and the terminal 6 through the terminal 5 , or the terminal 4 and the terminal 6 can also send the uplink information to the network device through the terminal 5 .

FIG. 2 shows the architecture of another possible communication system to which the communication method provided by the embodiment of the present application is applicable. The communication system 200 includes a core network device 210, an access network device 220, and a terminal device 230. The access network device 220 is connected to the core network device 210 through the S1 interface, and the access network device 220 is connected through the X2 interface for communication. Each access network device 220 may be one or more terminals within the coverage area. Device 230 provides services.

The methods provided in the embodiments of the present application may be applied to a fourth generation (4th generation, 4G) communication system, a fifth generation (5th generation, 5G) communication system, or various future communication systems. Specifically, it can be applied to the communication scenario of MTC, and can also be applied to the communication scenario of NB-IoT.

The 5G communication system supports the configuration of bandwidth part (BWP), and the access network equipment can flexibly adjust the bandwidth according to the service data volume of the terminal equipment to save the power consumption of the terminal equipment. Currently, in the RRC idle state, the access network device configures the initial partial bandwidth (initial BWP) through system messages for the initial access of the terminal device. When the terminal device enters the RRC connected state, the access network device can configure multiple bandwidths for the terminal device. A dedicated part of the bandwidth (dedicated BWP), the access network device can activate the dedicated BWP of the terminal device through dynamic instructions.

As shown in Figure 3, the terminal device accesses the access network device through the initial BWP, enters the RRC connection state, and then the access network device configures three dedicated BWPs for the terminal device, namely the first BWP, the second BWP, 3rd BWP. At time t1, the access network device activates the first BWP for the terminal device. At time t2, the access network device activates the second BWP for the terminal device. At time t3, the access network device activates the third BWP for the terminal device. At the same time, the end device has only one active dedicated BWP.

The frequency point of 5G is divided into two parts: FR1 (F<6GHz, low frequency) and FR2 (F>6GHz, high frequency, millimeter wave). The bandwidth of FR1 can be 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 40MHz, 50MHz, 60MHz, 80MHz and 100MHz. FR2 bandwidth can be 50MHz, 100MHz, 200MHz, 400MHz.

5G introduces terminal equipment that reduces terminal capability, complexity, and power consumption, which can be called light terminal equipment (NR-Light terminal equipment) or reduced capability terminal equipment (Reduce Capability UE, Red-Cap UE). Such terminal devices are mainly used in IoT scenarios, and the number of terminal devices is relatively large. Its main features include reducing the bandwidth of such terminal equipment (UE Bandwidth Reduction), that is, terminal equipment communicates on a relatively small bandwidth, for example, terminal equipment that only supports 5MHz bandwidth, or only supports 5MHz and 10MHz bandwidth. equipment, or terminal equipment supporting 5MHz, 10MHz and 15MHz bandwidth, or terminal equipment supporting 5MHz, 10MHz, 15MHz and 20MHz bandwidth, etc.

In this application, frequency domain resources may be indicated differently in different scenarios: for example, BWP in NR, narrowband (NB) in eMTC, and carrier in NB-IoT, of course, in the future There may also be other indications in the scene.

It should also be noted that the physical downlink shared channels involved in this application, such as physical downlink shared channel (PDSCH), narrowband physical downlink shared channel (narrowband physical downlink shared channel, NPDSCH), have the same function in essence Channels, just with different names in different technologies, can be interchanged in this application. Similarly, the physical downlink control channels involved in this application, such as PDCCH (physical downlink control channel, physical downlink control channel), MTC physical downlink control channel (MTC physical downlink control channel, MPDCCH), enhanced physical downlink control channel (enhanced physical downlink control channel) control channel, EPDCCH), narrowband physical downlink control channel (narrowband physical downlink control channel, NPDCCH), which are essentially the same channel, but have different names in different technologies, and can also be replaced with each other in this application.

In the above scenarios shown in FIGS. 1 and 2 , the access network device and the terminal device can determine the frequency domain resource corresponding to the paging information based on the same preset rule, and the access network device sends the paging on the frequency domain resource , the terminal device detects paging on the frequency domain resource.

Exemplarily, in NB-IoT, the access network equipment is provided with multiple carriers. Please refer to the schematic diagram of the access network equipment setting multiple carriers as shown in FIG. 4 . The multiple carriers include an anchor carrier. ) and at least one non-anchor carrier, each of which has its own weight. The terminal device resides on the anchor carrier of the access network device in the RRC idle state. The access network device and the terminal device can determine the paging carrier based on preset rules, and then the access network device can use the paging carrier on the paging carrier. paging, the terminal device monitors the paging on the paging carrier.

In an example, the paging carrier is the carrier corresponding to the smallest carrier index that satisfies the relation (1):

floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(n)…Relationship (1)

In relational formula (1), UE_ID is the terminal equipment identification related to the international mobile subscriber identity (IMSI) or the 5G globally unique temporary UE identity (5G globally unique temporary UE identity, 5G-S-TMSI). ;

N is min(T,nB);

Ns is max(1,nB/T);

T is the DRX cycle of the terminal device;

nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, T/1024;

Nn is the total number of paging carriers;

W(i) is the weight of the i-th paging carrier;

W is the sum of the weights of all paging carriers, eg, W=W(0)+W(1)+...+W(Nn-1).

Further, each carrier corresponds to a transmission parameter, such as the maximum number of repetitions. In order to realize that different carriers cover the same range, it is necessary to set the configuration of the maximum number of repetitions for different carriers to support different common search spaces (common search space, CSS) of the NPDCCH. After the access network device determines the paging carrier, it can send the paging carrier corresponding to the maximum number of repetitions. Correspondingly, after determining the paging carrier, the terminal device can receive the paging on the corresponding paging carrier with reference to the maximum number of repetitions. In this application, the maximum number of repetitions may also be referred to as the number of repetitions, repetition information, etc. Of course, there may be other names in other cases, and this application is only an example, and the names are not limited.

In the above technical solution, the paging carrier is determined according to the UE_ID. Since the UE_ID is essentially a random ID, the calculation formula based on the UE_ID is essentially to randomly disperse different UEs on different paging carriers to receive paging, so the above-mentioned preset rules are essentially The above is to determine the paging carrier based on the random principle.

At present, for terminal equipment supporting different services, it may be set in an environment with different coverage conditions, and the above-mentioned technical solution of determining the paging carrier based on the random principle may result in a mismatch between the paging carrier and the terminal equipment service.

Based on this, the present application provides a communication method for solving the problem that the frequency domain resources determined by the access network equipment and the terminal equipment do not match the service characteristics of the terminal equipment.

In this application, the message transmitted between the access network device and the terminal device is referred to as the first message. The frequency domain information (which may also be referred to as frequency information) corresponding to the frequency domain resources used for transmitting the first message between the access network device and the terminal device is referred to as the first frequency domain information. The resource requirement for indicating the transmission of the first message between the terminal device and the access network device is referred to as first requirement information.

FIG. 5 is a schematic flowchart of a communication method exemplarily provided by this application, in the process:

Step 501, the terminal device determines first frequency domain information.

Specifically, the terminal device determines the first frequency domain information according to the first requirement information and the preset corresponding relationship.

The first requirement information is used to indicate resource requirements when the terminal device and the access network device transmit messages. Exemplarily, the first requirement information is associated with the service characteristics of the terminal device, which is specifically embodied in that the first requirement information is associated with the channel state (also referred to as channel quality) between the access network device and the terminal device, such as , the terminal device is a water and electricity meter located in the basement, the channel status between the access network device and the terminal device is poor, and the first demand information indicates that the access network device needs to repeatedly send downlink signals for many times, that is, the same transmission in multiple subframes. A transport block to improve coverage and ensure that downstream signals are successfully received by end devices.

The preset correspondence is configured in the access network device, and the preset correspondence includes a correspondence between demand information and frequency domain information, wherein the first demand information in the preset correspondence corresponds to the first frequency domain information. The preset correspondence may be sent by the access network device to the terminal device. Specifically, the preset corresponding relationship may be carried in access stratum (access stratum, AS) signaling sent by the access network device to the terminal device, such as a system message or an RRC message.

Step 502, the access network device determines first frequency domain information.

Specifically, the access network device determines the first frequency domain information according to the first requirement information and the preset corresponding relationship.

The implementation manner of the access network device determining the first frequency domain information is similar to the implementation manner of the terminal device determining the first frequency domain information in the foregoing step 501, and details are not described herein again. The sequence of step 501 and step 502 is not limited.

Step 503: The access network device sends a first message on the resource corresponding to the first frequency domain information.

Specifically, the first frequency domain information corresponds to a first frequency domain resource and a first transmission parameter. The access network device sends the first message on the first frequency domain resource according to the first transmission parameter. Correspondingly, the terminal device receives the first message according to the first transmission parameter on the first frequency domain resource.

The terminal equipment can be in RRC idle state or RRC inactive state. The first message is used by the access network device to page the terminal device, and the first message may be paging information. Exemplarily, the first message is specifically downlink control information (downlink control information, DCI) used for paging the terminal device, and the first message is carried in the PDCCH. Or, the first message is specifically a paging message (paging message) used for paging the terminal device, the first message includes downlink data, and the first message is carried in the PDSCH.

The downlink control information is taken as an example, the access network device sends the downlink control information on the PDCCH corresponding to the first frequency domain resource according to the first transmission parameter. The terminal device receives downlink control information according to the first transmission parameter on the PDCCH corresponding to the first frequency domain resource.

In this application, the access network device determines the first frequency domain information according to the first demand information and the preset corresponding relationship, and the terminal device determines the first frequency domain information according to the first demand information and the preset corresponding relationship. The first message is transmitted on the resource corresponding to the domain information, and the resource corresponding to the first frequency domain information can meet the first demand information, so as to avoid the occurrence of mismatch between the frequency domain resources determined by the access network equipment and the terminal equipment and the service characteristics of the terminal equipment. question.

With reference to the above-mentioned embodiments in FIG. 5 , the embodiments of the present application exemplarily provide a second communication method, in which the first demand information may be reached by consensus between the core network device and the terminal device.

The first demand information may be referred to as a first demand level, and the preset corresponding relationship may be referred to as a first corresponding relationship. The first demand level and the first corresponding relationship will be explained separately as follows.

The first level of demand

The first requirement level is used to indicate the configuration requirement of the terminal device service for the transmission parameter of the first message. Exemplarily, the first demand level may include one or more of a delay demand level, a coverage demand level, and a paging probability level.

The coverage requirement level may include normal coverage, deep coverage, and no coverage requirement. Among them, normally covered terminal devices such as street lamps on the ground, deeply covered terminal devices such as water and electricity meters in the basement, and unnecessary terminal devices such as wearable devices. In some embodiments, the deep coverage may further include multiple levels of deep coverage, such as including deep coverage level 1 and deep coverage level 2.

The delay requirement level may include delay-sensitive, delay-free (or delay-tolerable), delay-sensitive terminal devices such as smoke detectors, and delay-undemanding terminal devices such as water and electricity meters.

The paging probability levels may include high paging probability and low paging probability. Among them, a terminal device with a high paging probability is such as a user's mobile phone, and a terminal device with a low paging probability is such as a street lamp.

The first demand level is exemplified in combination with the delay demand level, the coverage demand level, and the paging probability level.

In one implementation, three fields can be preset for the first demand level, and the three fields respectively indicate the delay demand level, the coverage demand level, and the paging probability level. If a field is empty, it can indicate the demand corresponding to the field. for no need.

Example 1, the terminal device service corresponds to the delay requirement. For example, the delay requirement level is delay sensitive, and the first field in the first requirement level indicates that the delay is sensitive, and the last two fields are empty.

Example 2, the terminal equipment service corresponds to the delay requirement and coverage requirement. For example, the delay requirement level is delay sensitive and the coverage requirement level is normal coverage, then the first field in the first requirement level indicates that the delay is sensitive, and the second field indicates that the delay is sensitive. Override normally, the third field is empty.

Example 3: The terminal equipment service corresponds to the delay requirement, coverage requirement and paging probability. For example, the delay requirement level is delay sensitive, the coverage requirement level is normal coverage, and the paging probability is high paging probability. The first field indicates delay sensitive, the second field indicates normal coverage, and the third field indicates high paging probability.

It should be noted that, if the delay requirement level is no delay requirement, the first field in the first requirement level can also be empty, or, if the coverage requirement level is coverage no requirement, the second field in the first requirement level can be empty. fields can also be empty. In a specific example, if the terminal service corresponds to no demand for delay, no demand for coverage, and high paging probability, both the first field and the second field in the first demand level may be empty, and the third field indicates a high paging probability .

In another implementation, the first demand level is one of a delay demand level, a coverage demand level, and a paging probability level, and the first demand level includes a field. Exemplarily, this field uses one bit to indicate the delay requirement of the terminal equipment service: 0 indicates that the delay requirement level is delay-sensitive, and 1 indicates that the delay requirement level is delay-insensitive (or delay-tolerant). For example, if the bit is 0, the field in the first demand level indicates that the delay is sensitive. Or, exemplarily, this field uses two bits to indicate the coverage requirement level of the terminal equipment service: 00 indicates that the coverage requirement level is normal coverage (or normal coverage), 01 indicates that the coverage requirement level is deep coverage level 1, and 10 indicates coverage The requirement level is deep coverage level 2, and 11 means no coverage requirement or a reserved value. For example, if the bit is 01, the field in the first requirement level indicates a deep coverage level 1. Further, the first demand level may also indicate that the terminal device has no demand for delay, coverage, and paging probability.

Or the first demand level is two of a delay demand level, a coverage demand level, and a paging probability level, and the first demand level includes two fields. Exemplarily, the terminal equipment service corresponds to the delay requirement and the coverage requirement. For example, the delay requirement level is delay sensitive and the coverage requirement level is normal coverage, then the two fields in the first requirement level respectively indicate delay sensitive and normal coverage. , and further, the first demand level may also indicate that the terminal device has no demand for the paging probability.

It should be noted that, if the corresponding delay requirement level of the terminal device is no delay requirement, the first requirement level may not include a field for indicating no delay requirement. Alternatively, if the corresponding coverage requirement level of the terminal device is no coverage requirement, the first requirement level may not include a field for indicating no coverage requirement. In a specific example, if the terminal service corresponds to no demand for delay, no demand for coverage, and high paging probability, the first demand level may include only one field, which indicates a high paging probability.

It should also be noted that the above two implementations are merely examples given by the present application, and the present application may also include other implementation manners, which will not be exemplified one by one here. Of course, the first demand level is not limited to the ones listed above, and other division methods may also be followed, and other names, quantities, and definitions may be used, which are also not limited in this application.

In an optional implementation manner, the first demand level is determined through negotiation between the core network device and the terminal device.

Specifically, the terminal device sends non-access stratum (NAS) signaling to the core network device, where the NAS signaling includes the first demand level requested by the terminal device, and the NAS signaling such as an attach request message (attach request message) ), tracking area update request message (TAU request message), etc. If the core network device determines to accept the first demand level, it sends acceptance information to the terminal device. If the core network device determines not to accept the first demand level, it sends rejection information to the terminal device. Further, the core network device may send the first demand level indicated by the core network device when sending the rejection information.

In addition, the terminal device may also directly report the first demand level to the core network device, or the core network device may directly deliver the first demand level to the terminal device. The first demand level can be determined without the signaling interaction process of request and confirmation between the core network device and the terminal device.

In this implementation, if the first demand level is no demand, a consensus can also be reached by default between the core network device and the terminal device. For example, the core network device and the terminal device agree to use NAS signaling such as reserved in the attach request message. The bits are used to indicate the first demand level. If the reserved bits in the attach request message sent by the terminal device to the core network device are empty (that is, the first demand level is not included), the core network device determines that the terminal device is not required. terminal equipment.

The core network device may send the first demand level to the access network device, and the first demand level may be used as a separate message or carried in an existing message.

The core network device may send the first demand level to the access network device when the terminal device is in the RRC connected state, or may send the first demand level to the access network device when the terminal device is in the RRC idle state or the RRC inactive state .

Exemplarily, the terminal device is in the RRC idle state, and the first demand level may be carried in the paging information sent by the core network device to the access network device. The terminal device is in the RRC inactive state, and the first demand level may be carried in the RRC inactive assistance information (RRC inactive assistance information) sent by the core network device to the access network device.

In another implementation manner, the first demand level may be sent by the terminal device to the access network device, and the first demand level may be used as a separate message, or may be carried in an existing message. The terminal device is in the RRC connection state, and the first demand level can be carried in the RRC message sent by the terminal device to the access network device. RRC messages such as RRC connection setup request message (RRC setup request), RRC connection setup complete message (RRC setup complete message) ), RRC connection reconfiguration complete message (RRC reconfiguration complete).

It should be noted that, the access network device may store the first demand level as the context of the terminal device. If the terminal device is in the RRC inactive state, the terminal device moves from the coverage of the first access network device to the coverage of the second access network device, and the context of the terminal device is stored in the first access network device, then the first access network device stores the context of the terminal device. The second access network device may also request the context of the terminal device from the first access network device, so that the second access network device determines the first frequency domain information according to the first demand level in the context of the terminal device. For specific implementation, refer to the following embodiments.

In this application, the first access network device may be referred to as an anchor (anchor) access network device or an anchor base station, and the second access network device may be referred to as a non-anchor (non-anchor) access network device or a non-anchor access network device or a non-anchor access network device. Anchor base station.

Second, the first correspondence

The first correspondence indicates the correspondence between the demand level and the frequency domain information.

In an implementation manner, the first correspondence is a correspondence between a demand level and frequency domain information, and the frequency domain information includes frequency domain resources and transmission parameters. Exemplarily, the first corresponding relationship is shown in Table 1.

Table 1

需求等级level of need	频域信息frequency domain information

需求等级1Requirement Level 1	频域信息1(频域资源1，传输参数1)Frequency domain information 1 (frequency domain resource 1, transmission parameter 1)
需求等级2Requirement Level 2	频域信息2(频域资源2，传输参数2)Frequency domain information 2 (frequency domain resource 2, transmission parameter 2)
需求等级3Requirement Level 3	频域信息3(频域资源3，传输参数3)Frequency domain information 3 (frequency domain resource 3, transmission parameter 3)
需求等级4Requirement Level 4	频域信息4(频域资源4，传输参数4)Frequency domain information 4 (frequency domain resource 4, transmission parameter 4)

In another implementation manner, the frequency domain information is frequency domain resources, and the first corresponding relationship includes a corresponding relationship between a demand level, a frequency domain resource and a transmission parameter.

In an example, the corresponding relationship between the demand level, frequency domain resources and transmission parameters is shown in Table 2a.

Table 2a

需求等级level of need	频域资源frequency domain resources	传输参数transfer parameters

需求等级1Requirement Level 1	频域资源1 Frequency Domain Resource 1	传输参数1 transfer parameter 1
需求等级2Requirement Level 2	频域资源2Frequency Domain Resource 2	传输参数2transfer parameter 2
需求等级3Requirement Level 3	频域资源3Frequency Domain Resource 3	传输参数3transfer parameter 3
需求等级4Requirement Level 4	频域资源4Frequency Domain Resource 4	传输参数4transfer parameter 4

In another example, the corresponding relationship between the demand level and the frequency domain resource is shown in Table 2b, and the corresponding relationship between the frequency domain resource and the transmission parameter is shown in Table 2c.

Table 2b

需求等级level of need	频域资源frequency domain resources

需求等级1Requirement Level 1	频域资源1 Frequency Domain Resource 1
需求等级2Requirement Level 2	频域资源2Frequency Domain Resource 2
需求等级3Requirement Level 3	频域资源3Frequency Domain Resource 3
需求等级4Requirement Level 4	频域资源4Frequency Domain Resource 4

Table 2c

频域资源frequency domain resources	传输参数transfer parameters
频域资源1 Frequency Domain Resource 1	传输参数1 transfer parameter 1
频域资源2Frequency Domain Resource 2	传输参数2transfer parameter 2
频域资源3Frequency Domain Resource 3	传输参数3transfer parameter 3
频域资源4Frequency Domain Resource 4	传输参数4transfer parameter 4

The first correspondence is illustrated by taking the form of a table as an example, and the first correspondence in this application is not limited to the form of a table.

In the above first correspondence, the frequency domain resource index may be used to indicate the frequency domain resource. For example, in the above Table 1, the frequency domain resource 1 may be indicated by the index 1, and the frequency domain resource 2 may be indicated by the index 2. In addition, there may be no frequency-domain resource index in the first correspondence, but the frequency-domain resources are implicitly indicated according to the positions in the first correspondence. For example, in Table 1 above, the frequency-domain resources at the first position are frequency-domain resources. Resource 1, the frequency domain resource in the second position is frequency domain resource 2.

The transmission parameters include one or more reference transmission parameters, such as the maximum number of repetitions, the DRX cycle, the WUS enable flag, the paging occasion density, and the power boosting capability.

The maximum number of repetitions indicates the maximum number of repetitions of the paging information being transmitted. For example, if the maximum number of repetitions is 10, then the access network device sends the paging information 10 times. Correspondingly, the terminal device can receive the paging information at most 10 times. paging information.

The DRX cycle, which can also be understood as a paging cycle, is used for a terminal device to determine a paging occasion (PO) for monitoring paging information.

The WUS enable flag indicates whether the terminal device needs to use WUS. In an example, the value of the WUS enable flag is 1, indicating that the terminal device needs to use WUS, and the value of the WUS enable flag is 0, indicating that the terminal device does not need to use WUS. In yet another example, in the case of DRX, when the terminal device detects the WUS, the terminal device should monitor the subsequent PO. In the case of enhanced discontinuous reception (eDRX), when the terminal device detects WUS, the terminal device should monitor the following POs or monitor until it receives the paging information containing the NAS identifier of the terminal device (with an earlier whichever prevails). If the end device does not detect WUS, the end device does not need to listen to the following POs.

The paging occasion density indicates the number of subframes in a radio frame that can be used to carry paging information. Exemplarily, the paging occasion density indicates the number of subframes in a radio frame that can be used to carry paging downlink control information. number.

The power boost capability instructs the access network device to boost the transmit power to a multiple of the original transmit power (or to the target db) for paging the terminal device.

In combination with the above description of the demand level and the transmission parameter, a first correspondence is exemplarily provided in Table 3.

The demand levels include normal coverage, deep coverage, no demand, and delay sensitivity. Transmission parameters include the maximum number of repetitions and the DRX cycle. Exemplarily, the maximum number of repetitions is sorted from small to large as follows: the maximum number of repetitions 4, the maximum number of repetitions 3, the maximum number of repetitions 1, the maximum number of repetitions 2, and the order of the DRX cycle from small to large is: DRX cycle 4, DRX cycle 3 , DRX cycle 1, DRX cycle 2.

table 3

需求等级level of need	频域资源frequency domain resources	传输参数transfer parameters
正常覆盖normal coverage	频域资源1 Frequency Domain Resource 1	传输参数1(最大重复次数1和DRX周期1)Transmission parameter 1 (maximum repetitions 1 and DRX cycle 1)
深覆盖deep coverage	频域资源2Frequency Domain Resource 2	传输参数2(最大重复次数2和DRX周期2)Transmission parameter 2 (maximum repetitions 2 and DRX cycle 2)
无需求no need	频域资源3Frequency Domain Resource 3	传输参数3(最大重复次数3和DRX周期3)Transmission parameter 3 (maximum repetitions 3 and DRX cycle 3)
时延敏感Delay sensitive	频域资源4Frequency Domain Resource 4	传输参数4(最大重复次数4和DRX周期4)Transmission parameter 4 (maximum repetitions 4 and DRX cycle 4)

It should be noted that the first correspondences corresponding to different cells may be the same or different, and the terminal device may receive the first correspondences of the camped cells from the access network device. In an example, the terminal equipment resides in a certain cell, and the access network equipment broadcasts the first correspondence of the cell to the terminal equipment. In another example, after the cell is reselected to the target cell, the terminal device requests the access network device corresponding to the target cell for the first correspondence of the cell, and the access network device sends the first correspondence of the cell to the terminal device.

With reference to the above description, FIG. 6 is a schematic flowchart of the second communication method provided by the present application, wherein the process is as follows.

Step 601: The terminal device determines first frequency domain information according to the first demand level and the first corresponding relationship.

In an implementation manner, the terminal device determines, according to the first correspondence, first frequency domain information corresponding to the first demand level, where the first frequency domain information includes first frequency domain resources and first transmission parameters.

Combining the above table 1 as an example, the first demand level is demand level 1, and the terminal device determines the first frequency domain information as frequency domain information 1 according to demand level 1 and the first correspondence. Specifically, the first frequency domain resource is frequency domain. Resource 1, the first transmission parameter is transmission parameter 1.

In another implementation manner, the terminal device determines the first frequency domain resource corresponding to the first demand level according to the corresponding relationship between the demand level and the frequency domain information in the first corresponding relationship, and then the terminal device combines the first corresponding relationship The correspondence between the intermediate frequency domain resource and the transmission parameter determines the first transmission parameter corresponding to the first frequency domain resource.

Taking the example of Table 2a above, the first demand level is demand level 1, and the terminal device determines the first frequency domain resource as frequency domain resource 1 according to demand level 1 and the corresponding relationship between demand level and frequency domain information in the first correspondence. Then, the terminal device determines that the first transmission parameter is the transmission parameter 1 corresponding to the frequency domain resource 1 in combination with the corresponding relationship between the frequency domain resource and the transmission parameter in the first corresponding relationship.

It should be pointed out that, in the examples shown in Tables 1 to 3 above, one first demand level may correspond to one frequency domain information, but the embodiment of the present application does not exclude that one first demand level corresponds to multiple frequency domain information. Method to realize.

In an optional manner, the first correspondence may be as shown in Table 4a, wherein the demand level may correspond to one or more frequency domain information.

Table 4a

需求等级level of need	频域资源frequency domain resources	传输参数transfer parameters

需求等级1Requirement Level 1	频域资源1 Frequency Domain Resource 1	传输参数1 transfer parameter 1
需求等级1 Requirement Level 1	频域资源2Frequency Domain Resource 2	传输参数2transfer parameter 2
需求等级1 Requirement Level 1	频域资源3Frequency Domain Resource 3	传输参数3transfer parameter 3
需求等级2Requirement Level 2	频域资源4Frequency Domain Resource 4	传输参数4transfer parameter 4
需求等级3Requirement Level 3	频域资源5Frequency Domain Resources 5	传输参数5transfer parameter 5
需求等级3Requirement Level 3	频域资源6Frequency Domain Resources 6	传输参数6transfer parameter 6

In this implementation manner, the terminal device may determine a plurality of frequency domain resources corresponding to the first demand level from the first correspondence according to the first demand level, and the plurality of frequency domain resources may correspond to the first demand level The frequency domain resources of , are referred to as multiple candidate frequency domain resources, and then the terminal device determines the first frequency domain resource from the multiple candidate frequency domain resources according to the terminal device identifier.

In an optional implementation manner, the first frequency domain resource is the frequency domain resource corresponding to the smallest frequency domain resource index that satisfies relational expression (2):

floor(UE_ID/(N*Ns))mod Nn...Relationship (2)

In relational formula (2), UE_ID is the terminal equipment identification related to IMSI or 5G-S-TMSI;

N is min(T,nB);

Ns is max(1,nB/T);

T is the DRX cycle of the terminal device;

nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, T/1024;

Nn is the total number of paging carriers.

In yet another optional manner, the first correspondence may be as shown in Table 4b, wherein the demand level may correspond to one or more frequency domain information, and each frequency domain information corresponds to a weight, and the weight is used to determine the first frequency domain. information.

Table 4b

需求等级level of need	频域资源frequency domain resources	传输参数transfer parameters	权重 Weights

需求等级1Requirement Level 1	频域资源1 Frequency Domain Resource 1	传输参数1 transfer parameter 1	权重1 weight 1
需求等级1 Requirement Level 1	频域资源2Frequency Domain Resource 2	传输参数2transfer parameter 2	权重2weight 2
需求等级1 Requirement Level 1	频域资源3Frequency Domain Resource 3	传输参数3transfer parameter 3	权重3weight 3
需求等级2Requirement Level 2	频域资源4Frequency Domain Resource 4	传输参数4transfer parameter 4	权重4weight 4
需求等级3Requirement Level 3	频域资源5Frequency Domain Resources 5	传输参数5transfer parameter 5	权重5weight 5
需求等级3Requirement Level 3	频域资源6Frequency Domain Resources 6	传输参数6transfer parameter 6	权重6weight 6

In this implementation manner, the terminal device may determine a plurality of frequency domain resources corresponding to the first demand level from the first correspondence according to the first demand level, and the plurality of frequency domain resources may correspond to the first demand level The frequency domain resources of , are referred to as multiple candidate frequency domain resources, and then the terminal device determines the first frequency domain resource from the multiple candidate frequency domain resources according to the weight corresponding to each candidate frequency domain resource.

In an optional implementation manner, the first frequency domain resource is the frequency domain resource corresponding to the smallest frequency domain resource index that satisfies relational expression (3):

floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(n)…Relationship (3)

In relational formula (3), UE_ID is the terminal equipment identification related to IMSI or 5G-S-TMSI;

N is min(T,nB);

Ns is max(1,nB/T);

T is the DRX cycle of the terminal device;

nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, T/64, T/128, T/256, T/512, T/1024;

Nn is the total number of paging carriers;

W(i) is the weight of the ith candidate frequency domain resource;

W is the total weight of multiple candidate frequency resources.

Taking Table 4b as an example, if the first demand level is demand level 1, the terminal device determines three candidate frequency domain resources as frequency domain resource 1 to frequency domain resource 3, respectively. Further, the terminal device determines the first frequency domain resource from the three candidate frequency domain resources based on the relational formula (3).

Assuming that UE_ID is 12345, T=128, nB=T/4=32, the corresponding weights of frequency domain resource 1 to frequency domain resource 3 are W(0)=5, W(1)=2, W(2)= 12. Correspondingly, Ns=1, N=T/4=32, and the sum of weights corresponding to frequency domain resource 1 to frequency domain resource 3 is W=W(0)+W(1)+W(2)=19.

In the first step, floor(UE_ID/(N*Ns))mod W=floor(12345/(32*1))mod19=5.

In the second step, for frequency domain resource 1, floor(UE_ID/(N*Ns))mod W=5 is not less than the weight W(0)=5 corresponding to frequency domain resource 1, and it is determined that frequency domain resource 1 does not conform to the relational formula ( 3).

The third step, for frequency domain resource 2, the sum of the weight corresponding to frequency domain resource 1 and the weight corresponding to frequency domain resource 2 is 7(W(0)+W(1)=7), floor(UE_ID/(N* Ns)) mod W=5 is less than 7, it is determined that the frequency domain resource 2 conforms to the relational expression (3).

The fourth step, for frequency domain resource 3, the sum of the weight corresponding to frequency domain resource 1, the weight corresponding to frequency domain resource 2 and the weight corresponding to frequency domain resource 3 is 19, floor(UE_ID/(N*Ns))mod W =5 is less than 19, it is determined that the frequency domain resource 3 conforms to the relational expression (3).

In the fifth step, both frequency domain resource 2 and frequency domain resource 3 conform to relational expression (3), and the frequency domain resource corresponding to the smallest frequency domain resource index from frequency domain resource 2 and frequency domain resource 3 is determined as frequency domain resource 2, That is, based on the relational formula (3), the terminal device determines from the three frequency domain resources 1 to 3 that the frequency domain resource 2 is the first frequency domain resource.

Step 602, the access network device determines the first frequency domain information according to the first demand level and the first corresponding relationship.

In this application, the implementation manner of the access network device determining the first frequency domain information according to the first correspondence and the first demand level may refer to the implementation manner of determining the first frequency domain information by the terminal device in step 601, which is not repeated here. Repeat.

The sequence of step 601 and step 602 is not limited.

Step 603, the access network device sends the first message on the resource corresponding to the first frequency domain information.

In an implementation manner, the first frequency domain information includes a first frequency domain resource and a first transmission parameter, and the access network device sends the first message using the first transmission parameter on the first frequency domain resource. Correspondingly, the terminal device uses the first transmission parameter to receive the first message on the first frequency domain resource.

In another implementation manner, the first frequency domain information is a first frequency domain resource, and the access network device sends the first message on the first frequency domain resource using a first transmission parameter corresponding to the first frequency domain resource. Correspondingly, the terminal device receives the first message on the first frequency domain resource using the first transmission parameter corresponding to the first frequency domain resource.

For example, the first frequency domain resource is a frequency of 10MHz, and the first transmission parameter includes the WUS enable identifier, the DRX cycle, and the maximum number of repetitions, where the DRX cycle is used by the terminal device to determine the PO location, and the WUS enable identifier indicates that the UE needs to use the WUS An indication of monitoring paging at the PO. When the terminal device detects the WUS, the terminal device monitors the paging downlink control information and receives the paging message at the subsequent PO. Specifically, the terminal device can receive the PDCCH carrying the paging downlink control information at most 10 times, and then receive the paging message on the indicated PDSCH.

Optionally, the terminal device establishes an RRC connection with the access network device according to the first message. For details, reference may be made to the description of the terminal device accessing the network in the prior art, which is not repeated here.

It should be noted that the first demand level may change.

In an example, the terminal device determines its corresponding first demand level change according to its own environment. For example, the terminal device is provided with an environmental sensor, and the terminal device determines that the environment in which the terminal device is located changes from an underground environment to an above-ground environment according to the sensed surrounding environment factors, and determines that the corresponding first demand level changes. For another example, the terminal device determines, according to a measurement result obtained by measuring a reference signal (reference signal), that the channel state between the terminal device and the access network device has changed, thereby determining that the first demand level has changed.

If the terminal device determines that the first demand level has changed, it may send second request information to the core network device. The second request information includes a new demand level (hereinafter referred to as the second demand level). After receiving the second request information, the core network device updates the first demand level according to the second demand level. The second need level replaces the first need level.

Further, the core network device or the terminal device may also send the second demand level to the access network device, so that the access network device may determine the first frequency domain information according to the second demand level and the first correspondence.

With reference to the above-mentioned embodiments of FIG. 5 or FIG. 6 , the present application exemplarily provides a specific implementation manner of paging a terminal device in an RRC idle state. Exemplarily, as shown in FIG. 7 , the process includes:

Step 701, a first demand level is negotiated between the core network device and the terminal device.

Step 702: The core network device sends the first demand level to the access network device.

Step 703: The access network device sends the first correspondence to the terminal device.

Step 704, the access network device determines the first frequency domain information according to the first correspondence and the first demand level.

Step 705, the terminal device determines the first frequency domain information according to the first correspondence and the first demand level.

Step 706, the access network device sends paging information on the resource corresponding to the first frequency domain information. The paging information is paging downlink control information or paging message.

In this embodiment, step 703 may be performed before or after step 701 or step 702, and the sequence of step 704 and step 705 is not limited.

The above process may further include: switching the terminal device from the RRC connected state to the RRC idle state. If the terminal device is in the RRC connected state, the access network device may send the first correspondence through an RRC release (RRC release) message. If the terminal device is in the RRC idle state, the access network device may broadcast the first correspondence to the terminal device.

For the specific implementation manner of each step in the process shown in FIG. 7 , reference may be made to the description in the related embodiments of FIG. 5 or FIG. 6 .

With reference to the above-mentioned embodiments of FIG. 5 or FIG. 6 , the present application exemplarily provides a specific implementation manner of paging a terminal device in an RRC inactive state.

In the first example, the terminal device is still in the serving cell of the first access network device, and the interaction between the core network, the first access network device and the terminal device may refer to the above steps 701 to 706 .

In the second example, when the terminal device moves to the serving cell of the second access network device, reference may be made to the schematic flowchart of paging a terminal device in an RRC inactive state as shown in FIG. 8 . In the process:

Step 801, a first demand level is negotiated between the core network device and the terminal device.

Step 802, the core network device sends the first demand level to the first access network device.

Step 803, the first access network device sends paging information to the second access network device.

The paging information includes the first demand level, and the paging information is used to instruct the second access network device to page the terminal device according to the first demand level.

The first demand level may be carried in the context of the terminal device sent by the first access network device to the second access network device, the second access network device requests the first access network device for the context of the terminal device, and the first access network device requests the context of the terminal device. The network access device sends the first correspondence in the context of the terminal device to the second access network device.

Step 804, the second access network device sends the first correspondence to the terminal device.

Here, the first correspondence is the first correspondence configured in the second access network device, and the first correspondences configured in different access network devices may be the same or different.

Step 805, the second access network device determines the first frequency domain information according to the first correspondence and the first demand level.

Step 806, the terminal device determines the first frequency domain information according to the first correspondence and the first demand level.

Step 807, the second access network device sends paging information to the terminal device. The paging information is paging downlink control information or paging message.

In this embodiment, the sequence of step 805 and step 806 is not limited.

In the first example or the second example, it may further include: switching the terminal device from the RRC connected state to the RRC inactive state, and if the terminal device is in the RRC inactive state, the first access network device may switch the first access network device to the RRC inactive state. The first correspondence configured in the network device is broadcast to the terminal device. Similarly, the second access network device may also broadcast the first correspondence configured in the second access network device to the terminal device.

For the specific implementation manner of each step in the process shown in FIG. 8 , reference may be made to the description in the related embodiments of FIG. 5 or FIG. 6 .

In the above technical solution, the core network device and the terminal device negotiate a first demand level, and the first demand level is associated with the service characteristics of the terminal device, or is associated with the channel state between the access network device and the terminal device, and the access The network device determines the first frequency domain information based on the first demand level and the first corresponding relationship, and the terminal device determines the first frequency domain information based on the first demand level and the first corresponding relationship, and fully considers the service characteristics of the terminal device. The device and the terminal device transmit the first message on the resource corresponding to the first frequency domain information, which helps to improve the probability that the terminal device receives the first message and avoids unnecessary resource consumption and energy consumption.

With reference to the above-mentioned embodiment in FIG. 5 , the embodiment of the present application exemplarily provides a third communication method, in which the first demand information may be reached by consensus between the access network device and the terminal device.

The first requirement information may be referred to as the first requirement parameter, and the preset corresponding relationship may be referred to as the second corresponding relationship. The first requirement parameter and the second corresponding relationship will be explained separately as follows.

First, the first demand parameters

The first requirement parameter is used to indicate the configuration requirement of the channel state between the terminal device and the access network device for the access network device to page the transmission parameter of the terminal device. The first demand parameter includes one or more reference demand parameters, such as the maximum number of repetitions, RSRP, coverage enhancement level, DRX cycle, WUS enable flag, paging occasion density, and power boost capability.

The maximum number of repetitions, the DRX cycle, the WUS enable flag, the paging occasion density, and the power boosting capability have been described in the related embodiment of FIG. 6 and will not be repeated.

RSRP is the average value of the signal power received on all resource elements (resource elements, REs) carrying reference signals within a symbol (symbol), and is used to indicate the channel state of the terminal equipment.

Coverage enhancement level (CEL), used to indicate the coverage enhancement requirement of paging information, for example, the coverage enhancement level of paging information is positively correlated with the coverage enhancement requirement, and the coverage enhancement requirement corresponding to coverage enhancement level 0 (CE0) , which is smaller than the coverage enhancement requirement corresponding to coverage enhancement level 3 (CE3). Taking signal repetition as an example, the number of times that the paging information needs to be repeatedly sent under CE0 is less than the number of times that the paging information needs to be repeatedly sent under CE3.

Each reference demand parameter in the first demand parameter may determine the indicated demand by corresponding to a preset value or a preset interval.

The demand indicated by the reference demand parameter corresponding to the preset value is: the corresponding reference transmission parameter in the first transmission parameter needs to be equal to the preset value. For example, the reference requirement parameter is the WUS enable identifier, and the WUS enable identifier corresponds to a preset value, indicating that the WUS enable identifier in the first transmission parameter needs to be the preset value.

The demand indicated by the reference demand parameter corresponding to the preset interval is: the reference transmission parameter corresponding to the first transmission parameter needs to be within the preset interval. For example, the reference demand parameter is the maximum number of repetitions, and the maximum number of repetitions corresponds to a preset interval, indicating that the maximum number of repetitions in the first transmission parameter needs to be within the preset interval.

Of course, the first demand parameter may also have other names, quantities and definitions, which are not limited in this application.

In an optional implementation manner, the first requirement parameter is determined through negotiation between the access network device and the terminal device.

Specifically, the terminal device sends AS signaling to the access network device, where the AS signaling includes the first requirement parameter requested by the terminal device, and the AS signaling such as an RRC message. If the access network device determines to accept the first requirement parameter, it may send acceptance information to the terminal device. If the access network device determines not to accept the first requirement parameter, it may send rejection information to the terminal device. Further, the access network device may send the first requirement parameter indicated by the access network device when sending the rejection information. Exemplarily, the rejection information may be carried in the RRC release message, or the rejection information and the first requirement parameter indicated by the access network device may be carried in the RRC release message.

In addition, the terminal device may also directly report the first demand parameter to the access network device, or the access network device may directly deliver the first demand parameter to the terminal device. Exemplarily, the terminal device may carry the first demand parameter on Among the RRC messages sent to the access network device, the RRC messages include, for example, an RRC connection establishment request message, an RRC connection establishment complete message, and an RRC connection reconfiguration complete message. For another example, the access network device may carry the first requirement parameter in an RRC message sent to the terminal device, such as an RRC release message. The first requirement parameter can be determined without the signaling interaction process of request and confirmation between the access network device and the terminal device.

The access network device may send the first demand parameter to the core network device. If the terminal device is in the RRC idle state, the access network device corresponding to the cell to which the terminal device belongs may obtain the first demand parameter from the core network device, and the cell to which the terminal device belongs corresponds to the first demand parameter. The access network device does not need to negotiate the first demand parameter with the terminal device again, which helps to avoid frequent negotiation and thus saves negotiation signaling.

Second, the second correspondence

The second correspondence indicates the correspondence between the demand parameter and the frequency domain resource.

In an implementation manner, the second correspondence includes a plurality of frequency domain information, wherein each frequency domain information includes frequency domain resources and transmission parameters. In another implementation manner, the frequency domain information is frequency domain resources, and the second correspondence relationship includes multiple frequency domain resources and transmission parameters corresponding to each frequency domain resource.

Exemplarily, the corresponding relationship between frequency domain resources and transmission parameters is shown in Table 5.

table 5

The second corresponding relationship is illustrated by taking the form of a table as an example, and the second corresponding relationship in this application is not limited to the form of a table.

In the above second correspondence, the frequency domain resource index may be used to indicate the frequency domain resource. For example, in the above Table 5, the frequency domain resource 1 may be indicated by the index 1, and the frequency domain resource 2 may be indicated by the index 2. In addition, there may be no frequency-domain resource index in the first correspondence, but the frequency-domain resources are implicitly indicated according to the position in the second correspondence. For example, in Table 5 above, the frequency-domain resources at the first position are frequency-domain resources. Resource 1, the frequency domain resource in the second position is frequency domain resource 2.

Transmission parameters include M reference transmission parameters, where M is greater than or equal to 1, and reference transmission parameters such as maximum repetition times, RSRP, coverage enhancement level, DRX cycle, WUS enable flag, paging opportunity density, and power boost capability. For specific explanation, reference may be made to the above description, which is not repeated here.

In an optional example, the transmission parameters include the maximum number of repetitions, the DRX cycle, and the WUS enable flag, and the second corresponding relationship is shown in Table 6.

Table 6

频域资源frequency domain resources	传输参数transfer parameters
频域资源1 Frequency Domain Resource 1	传输参数1(最大重复次数1、DRX周期1、WUS使能标识1)Transmission parameter 1 (maximum repetition times 1, DRX cycle 1, WUS enable flag 1)
频域资源2Frequency Domain Resource 2	传输参数2(最大重复次数2、DRX周期2、WUS使能标识2)Transmission parameter 2 (maximum number of repetitions 2, DRX cycle 2, WUS enable flag 2)
频域资源3Frequency Domain Resource 3	传输参数3(最大重复次数3、DRX周期3、WUS使能标识3)Transmission parameter 3 (maximum repetition times 3, DRX cycle 3, WUS enable flag 3)
频域资源4Frequency Domain Resource 4	传输参数4(最大重复次数4、DRX周期4、WUS使能标识4)Transmission parameter 4 (maximum repetition times 4, DRX cycle 4, WUS enable flag 4)

It should be noted that the second correspondences corresponding to different cells may be the same or different, and the terminal device may receive the second correspondences of the camped cells from the access network device. In an example, the terminal equipment resides in a certain cell, and the access network equipment broadcasts the second correspondence of the cell to the terminal equipment. In another example, after the cell is reselected to the target cell, the terminal device requests the access network device corresponding to the target cell for the second correspondence of the cell, and the access network device sends the second correspondence of the cell to the terminal device.

With reference to the above description, FIG. 9 is a schematic flowchart of the third communication method provided by the present application, wherein the process is as follows.

Step 901, the terminal device determines the first frequency domain information according to the first requirement parameter and the second corresponding relationship.

In an implementation manner, the terminal device determines the first frequency domain information from a plurality of frequency domain information, wherein the first transmission parameter in the first frequency domain information conforms to the first requirement parameter. In another implementation manner, the terminal device determines the first frequency domain information from a plurality of frequency domain information, wherein the first transmission parameter corresponding to the first frequency domain information conforms to the first requirement parameter.

The first transmission parameter conforms to the first requirement parameter. Specifically, the N reference transmission parameters in the first transmission parameter conform to the first requirement parameter, where N is greater than or equal to 1 and less than or equal to M.

Further, there is a correspondence between the reference transmission parameter in the first transmission parameter and the reference demand parameter in the first demand parameter, and the reference transmission parameter in the first transmission parameter conforms to the demand indicated by the corresponding reference demand parameter in the first demand parameter.

Exemplarily, the first requirement parameter includes reference requirement parameters such as the maximum number of repetitions, the DRX cycle, and the WUS enabling identifier, and indicates the requirement for the maximum number of repetitions, the DRX cycle requirement, and the WUS enabling requirement, respectively. The terminal device determines the first frequency domain information corresponding to the first demand parameter in the second correspondence, which may include the following examples:

Example 1, the terminal device determines that each reference transmission parameter meets the corresponding requirement as the first transmission parameter.

For example, in Table 6, the terminal device determines that the maximum number of repetitions 1 in the transmission parameter 1 meets the requirement of the maximum number of repetitions, the DRX cycle 1 meets the DRX cycle requirement, and the WUS enable flag 1 meets the WUS enable requirement, then determines that the transmission parameter 1 meets the first requirement. parameter, and determine transmission parameter 1 as the first transmission parameter.

Example 2: The terminal device determines, according to the priorities corresponding to the reference transmission parameters, that the reference transmission parameters corresponding to the first N priorities in the priority sorting meet the corresponding requirements as the first transmission parameters.

For example, in Table 6, the priority order of each reference transmission parameter is, from high to low, the maximum number of repetitions, the DRX cycle, and the WUS enable flag. For example, N=1, if the terminal device determines that the maximum number of repetitions 1 in the transmission parameter 1 meets the requirement of the maximum number of repetitions, it determines that the transmission parameter 1 meets the first requirement parameter, and determines the transmission parameter 1 as the first transmission parameter. For another example, N=2, if the terminal device determines that the maximum number of repetitions 1 in the transmission parameter 1 meets the requirement for the maximum number of repetitions, and the DRX cycle 1 meets the DRX cycle requirement, it determines that the transmission parameter 1 meets the first requirement parameter, and determines the transmission parameter 1. is the first transmission parameter.

In addition, when the first transmission parameter cannot be determined in the above example 1, the terminal device may also, based on the priority of each reference transmission parameter, determine that the reference transmission parameter corresponding to the top N priorities in the priority sorting meets the corresponding requirements as the first transmission parameter. a transmission parameter.

For example, in Table 6, the priority order of each reference transmission parameter is, from high to low, the maximum number of repetitions, the DRX cycle, and the WUS enable flag. The terminal device uses the implementation method in the above example 1 to determine that there are no transmission parameters whose reference transmission parameters meet the corresponding requirements. The terminal device may first determine whether there are transmission parameters whose reference transmission parameters corresponding to the first two priorities meet the corresponding requirements. Specifically, the terminal device determines that the maximum number of repetitions meets the requirement for the maximum number of repetitions, and the transmission parameter that the DRX cycle meets the DRX cycle requirement is used as the first transmission parameter. For example, if the terminal device determines that the maximum number of repetitions 1 in the transmission parameter 1 meets the requirement for the maximum number of repetitions, and that the DRX cycle 1 meets the DRX cycle requirement, it determines that the transmission parameter 1 meets the first requirement parameter, and determines the transmission parameter 1 as the first transmission parameter .

If the terminal device determines that there are no transmission parameters whose reference transmission parameters corresponding to the first two priorities meet the corresponding requirements, the terminal device determines whether there are transmission parameters whose reference transmission parameters corresponding to the first priority meet the corresponding requirements. For example, if the terminal device determines that the maximum number of repetitions 1 in the transmission parameter 1 meets the requirement of the maximum number of repetitions, it determines that the transmission parameter 1 meets the first requirement parameter, and determines the transmission parameter 1 as the first transmission parameter.

In this embodiment of the present application, the priority corresponding to each reference transmission parameter may be configured by the access network device, or may be pre-specified by a protocol.

In the above example, the terminal device may determine multiple transmission parameters that meet the conditions. For example, in Example 1, the terminal device may determine multiple transmission parameters whose reference transmission parameters all meet the corresponding requirements, and the multiple transmission parameters that meet the conditions may be determined. The frequency domain resources corresponding to the parameters are referred to as multiple candidate frequency domain resources, and the terminal device can determine the first frequency domain resource from the multiple candidate frequency domain resources based on the relational formula (2) or the relational formula (3).

In the above example, the terminal device determines, according to the priority corresponding to each reference transmission parameter, that the reference transmission parameter corresponding to the top N priorities in the priority ordering meets the corresponding requirement as the first transmission parameter, and the priority may be pre-configured. or stipulated by the agreement, in this way, the flexibility in the determination process can be improved.

Step 902, the access network device determines the first frequency domain information according to the first requirement parameter and the second corresponding relationship.

In this application, the implementation manner of the access network device determining the first frequency domain information according to the second correspondence and the first requirement parameter may refer to the implementation manner of the terminal device determining the first frequency domain information in step 901, which is not repeated here. Repeat.

Step 903, the access network device sends the first message on the resource corresponding to the first frequency domain information.

It should be noted that the first demand parameter may change.

Specifically, the terminal device may determine the channel state of the serving cell by measuring the downlink reference signal of the serving cell, and determine whether the first demand parameter changes. The measurement of the reference signal may include RSRP, reference signal received quality (RSRQ), signal-to-interference noise ratio (SINR), or signal-to-noise ratio (signal noise ratio, SNR), etc. at least one. For example, the terminal device detects the reference signal sent by the cell to which it currently belongs, and if the detected RSRP variation is greater than a threshold, or if the detected CEL changes, the terminal device determines the current channel state corresponding to the current cell and the first demand parameter has changed.

If the terminal device determines that the first demand parameter has changed, it may send the first request information to the access network device.

In the first implementation, the first request information includes updated demand parameters (hereinafter referred to as second demand parameters), and after receiving the first request information, the access network device updates all the required parameters according to the second demand parameters. The first requirement parameter may be directly replaced by the second requirement parameter for the first requirement parameter.

In the second implementation, the first request information includes first indication information for instructing to update the first demand parameter, and after receiving the first request information, the access network device updates the first demand parameter according to the first indication information Obtain the second demand parameter, and send the second demand parameter to the terminal device. This implementation can have at least the following two examples:

In an example, the first indication information may specifically be the change information of the demand parameter. For example, compared with the incremental information of the first demand parameter, the access network device adjusts the first demand parameter according to the incremental information to obtain the adjusted demand parameter. , which is the second demand parameter.

In another example, the first request information includes first indication information for instructing to update the first demand parameter, and after the access network device receives the first request information, according to the uplink between the access network device and the terminal device The channel state of the channel is determined, the second demand parameter is determined, and the second demand parameter is sent to the terminal device.

It should be pointed out that the second requirement parameter in the first request information of the first implementation can also be understood as the first indication information, and the first indication information is used to instruct the access network device to replace the first requirement parameter with the first requirement parameter. The second demand parameter indicated by the indication information.

Correspondingly, after both the access network device and the terminal device update the first demand parameter to obtain the second demand parameter, the access network device and the terminal device may determine the first frequency domain information according to the second demand parameter and the second correspondence. The access network device and the terminal device transmit messages on the determined first frequency domain information.

Further, when the first demand parameter of the terminal device changes, the access network device may also send the second demand parameter to the core network device, so that when the core network device instructs the second access network device to page the terminal device in the idle state , the core network device may send the second requirement parameter to the second access network device.

In addition, if the terminal device determines that the first demand parameter has changed, it may also have the following implementation methods:

In one implementation, the access network device may also set default frequency domain information in the second correspondence, and if the first demand parameter of the terminal device changes, the terminal device sends the first request information to the access network device, and the terminal device and the The access network device may determine the default frequency domain information as the first frequency domain information. If there are multiple pieces of default frequency domain information, the multiple pieces of default frequency domain information may be used as multiple candidate frequency domain information, and the first frequency domain information is determined according to the above relational formula (2) or relational formula (3).

In another implementation, if the first demand parameter of the terminal device changes, the terminal device sends the first request information to the access network device, and the terminal device and the access network device can determine the first frequency according to the above relationship (1). domain information.

In the two implementations, if the terminal device determines that the first demand parameter has changed, the implementation manner in which the access network device and the terminal device determine the first frequency domain information based on the first demand parameter and the second corresponding relationship is no longer applicable, then It can fall back to the default frequency domain information, or fall back to the method of determining the frequency domain information in the prior art, which helps to enhance the robustness of the system.

With reference to the above-mentioned embodiments of FIG. 5 or FIG. 9 , the present application exemplarily provides a specific implementation manner of paging a terminal device in an RRC idle state. Exemplarily, as shown in FIG. 10 , the process includes:

Step 1001, the access network device sends the second correspondence to the terminal device.

Step 1002, the access network device and the terminal device negotiate the first demand parameter.

Step 1003: The core network device sends paging information to the access network device, where the paging information is used to request the access network device to page the terminal device.

Step 1004, the access network device determines the first frequency domain information according to the second correspondence and the first demand parameter.

Step 1005, the terminal device determines the first frequency domain information according to the second correspondence and the first demand parameter.

Step 1006, the access network device sends paging information to the terminal device. The paging information is paging downlink control information or paging message.

In this embodiment, the sequence of step 1001 and step 1002 is not limited, and the sequence of step 1004 and step 1005 is not limited.

The above process may further include: switching the terminal device from the RRC connected state to the RRC idle state, and if the terminal device is in the RRC idle state, the access network device may broadcast the information to be sent to the terminal device. For example, the access network device may broadcast the second correspondence to the terminal device. For another example, the access network device may broadcast the first demand parameter to the terminal device.

For the specific implementation manner of each step in the process shown in FIG. 10 , reference may be made to the description in the related embodiments of FIG. 5 or FIG. 9 .

With reference to the above-mentioned embodiment in FIG. 5 or FIG. 9 , the present application exemplarily provides a specific implementation manner of paging a terminal device in an RRC inactive state. Exemplarily, referring to a schematic flow chart of paging a terminal device in an RRC inactive state as shown in FIG. 11 , the flow includes:

Step 1101: The first access network device sends the second correspondence to the terminal device.

Step 1102: Negotiate the first demand parameter between the first access network device and the terminal device.

Step 1103, the first access network device sends paging information to the second access network device, where the paging information is used to request the second access network device to page the terminal device, wherein the paging information includes the first demand parameter .

Step 1104, the second access network device determines the first frequency domain information according to the second correspondence and the first demand parameter.

Here, the second correspondence is the second correspondence configured in the second access network device, and the second correspondences configured in different access network devices may be the same or different.

Step 1105, the terminal device determines the first frequency domain information according to the second correspondence and the first demand parameter.

Step 1106, the second access network device sends paging information to the terminal device.

In this embodiment, the sequence of step 1101 and step 1102 is not limited, and the sequence of step 1104 and step 1105 is not limited.

The above process may further include: switching the terminal device from the RRC connected state to the RRC inactive state, and if the terminal device is in the RRC inactive state, the first access network device may broadcast to the terminal device the first access network device configured in the first access network device. The second correspondence or the first demand parameter. Similarly, the second access network device may also broadcast the second correspondence or the first requirement parameter configured in the second access network device to the terminal device.

In addition, if the terminal device is connected to the second access network device, it can negotiate the first demand parameter with the second access network device, and then when the terminal device is in the RRC idle state or the RRC inactive state, the second access network The device and the terminal device may determine the first frequency domain information based on the second correspondence configured in the second access network device and the negotiated first demand parameter.

For the specific implementation manner of each step in the process shown in FIG. 11 , reference may be made to the description in the related embodiments of FIG. 5 or FIG. 9 .

In the above technical solution, the access network device and the terminal device negotiate the first demand parameter, the first demand parameter is associated with the channel state between the access network device and the terminal device, and the access network device is based on the first demand parameter and the second demand parameter. The corresponding relationship determines the first frequency domain information, and the terminal device determines the first frequency domain information based on the first demand parameter and the second corresponding relationship, fully considering the channel state between the access network device and the terminal device, and the access network device and the terminal device. The device transmits the first message on the resource corresponding to the first frequency domain information, which is suitable for the service characteristics of the terminal device, helps to improve the success rate of the access network device paging the terminal device, and avoids the waste of resources or the terminal device receiving the call. The problem of large delay when calling a message.

In addition, the present application also provides an implementation manner when the channel state between the terminal device and the access network device changes. For details, refer to the schematic flowchart in FIG. 12 .

Step 1201, the terminal device determines the first channel state with the access network device.

The terminal device can measure the reference signal from the access network device to obtain the first channel state between the terminal device and the access network device, exemplarily, the information used to characterize the first channel state, such as the decoding situation of RSRP and PDCCH, etc. .

The first channel state may be used to indicate whether the coverage of the terminal device changes. For example, if the first channel state deteriorates, the terminal device may move from a location with better coverage to a location with poor coverage. For another example, When the first channel state becomes better, it may be that the terminal equipment moves from a position with poor coverage to a position with better coverage.

Step 1202: The terminal device determines the monitoring frequency domain information for monitoring the first message according to the first channel state.

In an optional implementation manner, when the terminal device determines that the state of the first channel is deteriorated, it may determine to monitor the first message through the second frequency domain information.

First, the second frequency domain information is explained. The second frequency domain information may also be referred to as default frequency domain information, and the second frequency domain information may be frequency domain information determined according to the relational formula (1). Alternatively, the second frequency domain information may also be preconfigured by the access network device for the terminal device, and the access network device may send the preconfigured second frequency domain information to the terminal device through an RRC message or a broadcast message. Exemplarily, The access network device may configure one or more second frequency domain information for the terminal device, and the access network device may also configure the same second frequency domain information for multiple terminal devices.

The relevant configuration parameters in the second frequency domain information, such as the maximum number of repetitions, RSRP, coverage enhancement level, DRX cycle, WUS enable flag, paging opportunity density, power boost capability, etc. In the case of poor status, the first message needs to be transmitted between the two. Exemplarily, the second frequency domain information configures that the maximum number of repetitions is greater than the threshold of the maximum number of repetitions, the paging occasion density is greater than the paging occasion density threshold, and the like.

In an optional implementation manner, the second frequency domain information is used by the access network device to page one or more terminal devices within the coverage of the cell, and the one or more terminal devices may be in an environment with poor channel status.

In an optional implementation manner, when the first channel state satisfies the first condition, it is determined that the monitoring frequency domain information is the second frequency domain information, and the first condition includes: the first RSRP condition and/or the first number of times condition. ;

The first RSRP condition includes any one or more of the following:

(1) The RSRP obtained by measuring the reference signal from the access network equipment is less than the first threshold value;

(2) The variation range of the RSRP obtained by measuring the reference signal in the first time period is greater than the second threshold value; wherein the first time period may be one or more DRX cycles. Exemplarily, the difference between the RSRP obtained at the beginning of the first period and the RSRP obtained at the end of the first period can be used as the variation range of the RSRP, or it can also be determined as the difference between the maximum RSRP and the minimum RSRP in the first period. The difference between them is used as the variation range of RSRP and so on.

The first degree condition includes any one or more of the following:

(1) The maximum number of repetitions required for successful decoding of the PDCCH is greater than the third threshold;

(2) The ratio (or number of times) of successfully decoded PDCCH in the second time period is less than the fourth threshold value; wherein the second time period may be one or more DRX cycles; In the second period, the terminal device decodes the PDCCH a total of 10 times, and 6 of them are successfully decoded. Then, the ratio of the terminal equipment to successfully decode the PDCCH in the second period is 0.6, which is greater than the fourth threshold.

(3) In the third period, the WUS indicates that the number of times the PDCCH is successfully decoded after the existence of the first message is less than the fifth threshold; wherein the third period can be one or more DRX cycles;

(4) The difference between the number of repetitions required to successfully decode the PDCCH in the first DRX cycle and the number of repetitions required to successfully decode the PDCCH in the second DRX cycle is greater than the sixth threshold value, and the first DRX cycle is the second DRX cycle One DRX cycle before the cycle. For example, the sixth threshold is 4, the number of repetitions required to successfully decode the PDCCH in the first DRX cycle is 3, and the number of repetitions required to successfully decode the PDCCH in the second DRX cycle is 8, and the difference between the two The value is 5, which is greater than the sixth threshold value.

The first time period, the second time period, and the third time period may be pre-configured by the access network device to the terminal device. The first threshold value, the second threshold value, the third threshold value, the fourth threshold value, the fifth threshold value, and the sixth threshold value may be pre-configured by the access network device to the terminal device, or As shown in FIG. 5 to FIG. 11 , the related threshold values in the first frequency domain information in the related method embodiments.

In another optional implementation manner, when the terminal device determines that the state of the first channel becomes better, it may determine to monitor the first message through the third frequency domain information.

First, the third frequency domain information is explained. The third frequency domain information is determined by the access network device and the terminal device at the same time. The third frequency domain information is specific to one terminal device and is of terminal device granularity. Exemplarily, the terminal device 1 corresponds to the third frequency domain information 1, the terminal device 2 corresponds to the third frequency domain information 2, and the access network device pages the terminal device 1 based on the third frequency domain information 1. Correspondingly, the terminal device 1 monitors the paging based on the third frequency domain information 1 , the access network device pages the terminal device 2 based on the third frequency domain information 2 , and correspondingly, the terminal device 3 monitors the paging based on the third frequency domain information 2 .

Exemplarily, the third frequency domain information is the first frequency domain information or the fourth frequency domain information.

Optionally, the first frequency domain information is determined by the terminal device in the first cell provided by the access network device according to the first demand information and the preset corresponding relationship, and the first demand information is used to indicate the terminal device and the access network. For the resource requirement when the device transmits the message, for details, refer to the implementation manner of determining the first frequency domain information in the relevant embodiments of FIG. 5 to FIG. 11 .

Optionally, the fourth frequency domain information is that when the terminal device is in the RRC connection state, the access network device according to the channel state information between the terminal device and the access network device, such as RSRP, or according to the UE specific DRX cycle of the terminal device, Frequency domain information determined for the terminal device.

In an optional implementation manner, when the first channel state satisfies the second condition, it is determined that the monitoring frequency domain information is the third frequency domain information, and the second condition includes: the second RSRP condition and/or the second number of times condition;

The second RSRP condition includes: the RSRP obtained by measuring the reference signal from the access network device is greater than the seventh threshold;

The second order condition includes any one or more of the following:

(1) The maximum number of repetitions required for successful decoding of the PDCCH is less than the eighth threshold;

(2) The proportion (or times) of successfully decoding the PDCCH in the fourth time period is greater than the ninth threshold value; wherein the fourth time period may be one or more DRX cycles;

(3) In the fifth period, the number of times of successful decoding of the PDCCH after the WUS indicates the existence of the first message is greater than the tenth threshold; wherein the fifth period may be one or more DRX cycles.

The fourth time period and the fifth time period may be pre-configured by the access network device to the terminal device. The eighth threshold value, the ninth threshold value, and the tenth threshold value may be pre-configured by the access network device to the terminal device, or may be the information in the first frequency domain information in the related method embodiments as shown in FIG. 5 to FIG. 11 . related thresholds.

It should be noted that in step 1202, the terminal device determines the monitoring frequency domain information according to the first channel state, which can be interpreted as, in an example, the first channel state between the terminal device and the access network device becomes worse (ie If the first condition is met, or the second condition is not met), the terminal device can change the monitoring frequency domain information from the third frequency domain information to the second frequency domain information according to the currently determined first channel state, and the terminal device The first message is monitored based on the second frequency domain information. In another example, when the state of the first channel between the terminal device and the access network device becomes better (that is, the second condition is satisfied, or the first condition is not satisfied), the terminal device can In the channel state, the monitoring frequency domain information is changed from the second frequency domain information to the third frequency domain information, and the terminal device monitors the first message based on the third frequency domain information.

It should also be noted that, if the first channel state between the terminal device and the access network device does not satisfy the second condition (that is, the first condition is satisfied), the duration exceeds the first preset duration, and the connection between the terminal device and the access network device is not satisfied. The new first frequency domain information may be re-determined by the implementations in the related method embodiments of FIG. 5 to FIG. 11, or the access network device may reconfigure the new fourth frequency domain for the terminal device according to the channel state between the access network device and the terminal device. frequency domain information.

In an optional implementation manner, after the terminal device undergoes cell reselection, the monitoring frequency domain information used by the terminal device to monitor the first message may or may not change. It can be explained as follows, in which case one is that the terminal equipment is reselected from the first cell to another cell (called the third cell), and the second case is that the terminal equipment is reselected from another cell (called the second cell) back to the first cell .

Case 1, when the terminal equipment moves from the first cell to the third cell through cell reselection, the terminal equipment can determine that the current monitoring frequency domain information has changed or has not changed. The second frequency domain information monitors the first message, and after moving to the third cell, it still monitors the first message through the second frequency domain information; for another example, the terminal device in the first cell monitors the first message through the third frequency domain information. message, after moving to the third cell, monitor the first message through the second frequency domain information.

In case 2, when the terminal device moves from the second cell to the first cell through cell reselection, the terminal device can determine that the current monitoring frequency domain information has changed or has not changed. The second frequency domain information monitors the first message, and after moving to the first cell, it still monitors the first message through the second frequency domain information; for another example, the terminal device in the second cell monitors the first message through the second frequency domain information. message, after moving to the first cell, monitor the first message through the third frequency domain information.

In this embodiment of the present application, the third cell and the second cell may be the same or different. The terminal equipment can be moved from the first cell to the third cell through the first reselection, and then moved back to the first cell through the second reselection from the third cell. Alternatively, the terminal equipment may be moved from the first cell to the third cell after the first reselection; then the third cell may be moved to the second cell after one or more reselections; and then the second cell For the last reselection, move back to the first cell.

In an optional manner, after cell reselection occurs, for example, after the terminal equipment moves from the first cell to the third cell, the terminal equipment can delete the third frequency domain information, and when the terminal equipment moves from the second cell to the third cell In a cell, the terminal device can use the second frequency domain information to monitor the first message from the access network device.

In another optional manner, after cell reselection occurs, for example, after the terminal equipment moves from the first cell to the third cell, the terminal equipment may continue to retain the third frequency domain information. When the terminal equipment moves from the second cell When reaching the first cell, the third frequency domain information can be reused to monitor the first message from the access network device under the condition that the second channel state between the terminal device and the access network device satisfies the fourth condition.

In an optional manner, the terminal equipment moves from the second cell to the first cell through cell reselection, and the terminal equipment determines the second channel state between the terminal equipment and the access network equipment in the first cell. If the channel state meets the fourth condition, it is determined that the monitoring frequency domain information is changed from the second frequency domain information to the third frequency domain information.

The fourth condition is the same or different from the second condition. For example, the fourth condition includes: (1) the maximum number of repetitions required to successfully decode the PDCCH is less than the twelfth threshold value, where the twelfth threshold value is less than or equal to the eighth threshold value; (2) in the fourth time period The proportion (or times) of the successfully decoded PDCCH is greater than the thirteenth threshold value, wherein the thirteenth threshold value is greater than or equal to the ninth threshold value; (3) Decoding after the WUS indicates the existence of the first message in the fifth period The number of successful PDCCHs is greater than the fourteenth threshold, where the fourteenth threshold is greater than or equal to the tenth threshold.

When the second channel state meets the fourth condition, the terminal device monitors the first message through the third frequency domain information, which can be understood as the relevant configuration parameters in the third frequency domain information, such as the maximum number of repetitions, RSRP, and coverage enhancement level. , DRX cycle, WUS enable identifier, paging opportunity density, power boost capability, etc. can meet the requirements of transmitting the first message between the terminal device and the access network device in the second channel state that satisfies the fourth condition.

Step 1203, the terminal device receives the first message from the access network device on the resource corresponding to the monitoring frequency domain information.

It should be noted that, for the access network device, the access network device may not know that the monitoring frequency domain information of the terminal device changes. Exemplarily, the monitoring frequency domain information of the terminal device is changed from the third frequency domain information to the second frequency domain information. If the access network device pages the terminal device through the third frequency domain information, the terminal device cannot be paged.

In an example, the access network device uses the third frequency domain information to page the terminal device, and after trying to page K times, the paging still fails, then the access network device can use the second frequency domain information or the third frequency domain information. Three frequency domain information and second frequency domain information to page to the terminal device, where K is greater than or equal to 1.

In the above technical solution, the terminal device determines the first channel state between the terminal device and the access network device, and determines the monitoring frequency domain information currently used to monitor the first message according to the first channel state. When the channel status between network access devices is poor (that is, the first condition is met, or the second condition is not met), the terminal device can choose to monitor the first message through the second frequency information, which can support The terminal device communicates normally with the access network device at any location within the cell coverage, that is, the second frequency domain information is used by the access network device to page one or more terminal devices at any location within the cell coverage, and the one or more Multiple terminal devices may be in an environment with poor channel status, so that in the case of poor channel status, the probability of successful monitoring and paging is improved, which helps to enhance the robustness of the system.

When the channel state between the terminal device and the access network device is good (that is, the second condition is satisfied, or the first condition is not satisfied), the terminal device can choose to monitor the first message through the third frequency information, and the third frequency information is used to monitor the first message. The frequency domain information is of terminal device granularity, and the third frequency domain information corresponding to different terminal devices is different, which helps to improve the utilization rate of the frequency domain information in the communication system.

Moreover, in this method, when the state of the first channel changes, the new third frequency domain information is not immediately determined between the terminal device and the access network device, but the preconfigured second frequency domain information is used, which can reduce the number of terminals The signaling interaction between the device and the access network device also helps to reduce the power consumption of the terminal device.

In addition, the present application also provides an implementation manner when the access network device determines that the channel state change between the access network device and the terminal device is small. For details, refer to the schematic flowchart in FIG. 13 .

Step 1301: In the case that the third channel state between the access network device and the terminal device satisfies the third condition, determine the monitoring frequency domain information for sending the first message.

The access network device determines that the third channel state satisfies the third condition, which may include any one or more of the following:

(1) The access network device acquires third indication information of the terminal device from the core network device, where the third indication information is used to indicate that the terminal device is in a static state. Exemplarily, the registration information of the terminal device is stored in the core network device, and the registration information of the terminal device includes third indication information of the terminal device, and the third indication information may be the service type of the terminal device, such as water and electricity. Watches, wearable devices, smoke detectors, street lights, user mobile phones, etc. The access network device can determine whether the terminal device is in a static state according to the service type. For example, the service type of the terminal device is a water and electricity meter, and the access network device determines that the terminal device is in a static state. For example, the service type of the terminal device is a user mobile phone. The access network device determines that the terminal device is in a non-quiescent state.

(2) The variation of the third channel state in the sixth time period is less than the eleventh threshold value; wherein the sixth time period may be one or more DRX cycles. Exemplarily, the access network device may determine the third channel state with the terminal device, and then determine whether the variation of the third channel state is smaller than the eleventh threshold value. Exemplarily, the third channel state may be evaluated by the access network device itself, or may be reported by the terminal device to the access network device.

(3) The access network device acquires fourth indication information of the terminal device from the terminal device, where the fourth indication information is used to indicate that the terminal device is in a static state. The fourth indication information may be sent by the terminal device to the access network device when it determines that it is in a stationary state by sensing the surrounding environment, or the fourth indication information may be that the terminal device measures a reference signal from the access network device, according to The measurement result is sent to the access network device when it is determined that it is in a static state. The fourth indication information may also be a service type of the terminal device, such as a water and electricity meter, a wearable device, a smoke detector, a street lamp, a user's mobile phone, and the like.

The sixth time period may be pre-configured by the access network device to the terminal device. The eleventh threshold value may be preconfigured by the access network device to the terminal device, or may be a related threshold value in the third frequency domain information in the related method embodiments as shown in FIGS. 5 to 11 .

In this embodiment of the present application, the monitoring frequency domain information includes the third frequency domain information and/or the second frequency domain information. For details, please refer to the description in the related embodiment of FIG. 12 .

In an optional manner, after the access network device determines that the third channel state satisfies the third condition, the access network device sends first configuration information to the terminal device. Exemplarily, the first configuration information includes the third Frequency domain information, the third frequency domain information may be first frequency domain information or fourth frequency domain information.

In another optional manner, after the access network device determines that the third channel state satisfies the third condition, the access network device sends second configuration information to the terminal device. Exemplarily, the second configuration information includes the first configuration information. Second frequency domain information.

Exemplarily, the first configuration information may be carried in RRC signaling or in a broadcast message, and the second configuration information may be carried in RRC signaling or in a broadcast message.

Step 1302: The access network device sends a first message to the terminal device on the resource corresponding to the monitoring frequency domain information.

Optionally, if the third channel state satisfies the third condition, the terminal device no longer performs the implementation manners in the foregoing steps 1201 to 1203, thereby reducing the power consumption of the terminal device.

In the above technical solution, if the access network device determines that the terminal device is in a static state, or determines that the channel state change between the access network device and the terminal device is small, it determines that a fixed frequency domain can be used to page the terminal device, For example, the access network device determines the first frequency domain information according to the first requirement information and the preset corresponding relationship, and pages the terminal device according to the first frequency domain information. Alternatively, the access network device may further determine the fourth frequency domain information applicable to the terminal device according to the channel state information between the access network device and the terminal device. Alternatively, the access network device may also allocate second frequency domain information to the terminal device, and page the terminal device through the second frequency domain information.

It should be added that, in this embodiment of the present application, the access network device paging the terminal device on the resource corresponding to the monitoring frequency domain information, and after establishing an RRC connection with the terminal device, the terminal device can also be released to the RRC idle state. , the access network device can save the beam information corresponding to the terminal device, so that the access network device can continue to use the beam information corresponding to the terminal device when it needs to page the terminal device again. Alternatively, the access network device may also send the beam information corresponding to the terminal device to the core network device, so that when the core network device needs to page the terminal device, the beam information corresponding to the terminal device can be sent to the device for paging the terminal device. in the access network equipment. Exemplarily, the beam information corresponding to the terminal device may specifically be identification information of the terminal device and beam information corresponding to the identification information. The beam information may include a beam index and the like.

Based on this, the access network device can page the terminal device on one or a few beams based on the stored beam information corresponding to the terminal device, or based on the beam information corresponding to the terminal device obtained from the core network device, thereby helping the To save the energy consumption of access network equipment.

The various embodiments described herein may be independent solutions, or may be combined according to internal logic, and these solutions all fall within the protection scope of the present application.

It can be understood that, in the above method embodiments, the methods and operations implemented by the terminal device may also be implemented by a component (such as a chip or circuit) that can be used in the terminal device, and the network device (access network device or core network device). ), the methods and operations can also be implemented by components (eg, chips or circuits) that can be used in network equipment.

In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are respectively introduced from the perspective of interaction between various devices. In order to implement the functions in the methods provided by the above embodiments of the present application, the terminal device and the network device may include hardware structures and/or software modules, and the above functions are implemented in the form of hardware structures, software modules, or hardware structures plus software modules. . Whether one of the above functions is performed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

The division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into one processor, or may exist physically alone, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules.

Based on the above content and the same concept, FIG. 14 and FIG. 15 are schematic structural diagrams of possible communication apparatuses provided by the present application. These communication apparatuses can be used to implement the functions of the terminal equipment or the access network equipment in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments.

When the communication apparatus 1400 is used to implement the functions of the access network device in the method embodiments shown in FIG. 5 to FIG. 11 :

In a possible implementation manner, the communication device 1400 includes: a processing unit 1401, configured to determine first frequency domain information, where the first frequency domain information is the frequency corresponding to the first demand information in the preset correspondence relationship. domain information, the first demand information is used to indicate the resource demand when the communication unit 1402 and the terminal device transmit messages; the communication unit 1402 is used to send the terminal device on the resource corresponding to the first frequency domain information Send the first message.

In a possible implementation manner, the communication unit 1402 is further configured to receive first request information from the terminal device, where the first request information includes first indication information, and the first indication information is used to indicate Update the first demand parameter; the communication unit 1402 is further configured to send a second demand parameter to the terminal device, where the second demand parameter is the updated first demand parameter. Optionally, the first indication information is a second requirement parameter.

In a possible implementation manner, the terminal device is in an RRC inactive state, and the context of the terminal device is stored in the first access network device; the communication unit 1402 is further configured to report to the first access network The device requests the context of the terminal device, the context of the terminal device includes the first requirement information; and receives the context of the terminal device from the first access network device.

In a possible implementation manner, the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum number of repetitions, DRX cycle, WUS enable identifier, paging opportunity density, power boost The communication unit 1402 is specifically configured to send the first message to the terminal device by using the transmission parameter corresponding to the frequency domain resource on the frequency domain resource included in the first frequency domain information.

In a possible implementation manner, the communication unit 1402 is further configured to send the preset correspondence to the terminal device.

When the communication apparatus 1400 is used to implement the functions of the terminal device in the method embodiments shown in FIG. 5 to FIG. 11 :

In a possible implementation manner, the communication device 1400 includes: a processing unit 1401, configured to determine first frequency domain information, where the first frequency domain information is the frequency corresponding to the first demand information in the preset correspondence relationship. domain information, the first demand information is used to indicate the resource demand when the communication unit 1402 and the access network device transmit messages; the communication unit 1402 is used to receive information from the The first message of the access network device.

In a possible implementation manner, the first message is used for paging the communication device.

In a possible implementation manner, the communication unit 1402 is further configured to send second request information to the core network device, where the second request information includes second indication information, and the second indication information is used to update the first demand level; the communication unit 1402 is further configured to receive a second demand level from the core network device, where the second demand level is the updated first demand level. Optionally, the second indication information is a second demand level.

In a possible implementation manner, the first demand information is the first demand parameter sent by the communication unit 1402 to the access network device, and the first frequency domain information is the corresponding information in the preset correspondence. The transmission parameter satisfies the frequency domain information of the first requirement parameter.

In a possible implementation manner, the communication unit 1402 is further configured to send first request information to the access network device, where the first request information includes first indication information, and the first indication information is used for updating the first requirement parameter; the communication unit 1402 is further configured to receive a second requirement parameter from the access network device, where the second requirement parameter is the updated first requirement parameter. Optionally, the first indication information is a second requirement parameter.

In a possible implementation manner, the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum number of repetitions, DRX cycle, WUS enable identifier, paging opportunity density, power boost The communication unit 1402 is specifically configured to, on the frequency domain resource included in the first frequency domain information, use the transmission parameter corresponding to the frequency domain resource to receive the first transmission from the access network device. information.

In a possible implementation manner, the communication unit 1402 is further configured to receive the preset correspondence from the access network device.

When the communication apparatus 1400 is used to implement the functions of the core network device in the method embodiments shown in FIG. 5 to FIG. 11 :

In a possible implementation manner, the communication apparatus 1400 includes: a processing unit 1401, configured to determine first demand information, where the first demand information is used to indicate resource requirements when the terminal device and the access network device transmit messages; The communication unit 1402 is configured to send the first requirement information to the access network device.

In a possible implementation manner, the processing unit 1401 is specifically configured to control the communication unit 1402 to receive the first demand level requested by the terminal device, determine the first demand level as the first demand information, and control the The communication unit 1402 sends acceptance information to the terminal device.

In a possible implementation manner, the processing unit 1401 is specifically configured to control the communication unit 1402 to receive second request information from the terminal device, where the second request information includes second indication information, and the first The second indication information is used to update the first demand level; and control the communication unit 1402 to send a second demand level to the terminal device, where the second demand level is the updated first demand level. Optionally, the second indication information is a second demand level.

In a possible implementation manner, the context of the terminal device is stored in the first access network device, the context of the terminal device stores the first requirement parameter, and the access network device is the second access network device, the processing unit 1401 is specifically configured to control the communication unit 1402 to acquire the first demand parameter from the first access network device.

When the communication apparatus 1400 is used to implement the function of the terminal device in the method embodiment of FIG. 12:

In a possible implementation manner, the communication apparatus 1400 includes: a processing unit 1401, configured to determine a first channel state with an access network device; according to the first channel state, determine whether to monitor the first message the monitoring frequency domain information; the communication unit 1402 is configured to receive the first message from the access network device on the resource corresponding to the monitoring frequency domain information.

In a possible implementation manner, the processing unit 1401 is configured to: in the case that the first channel state satisfies a first condition, determine that the monitoring frequency domain information is the second frequency domain information, and the first condition Including: the first RSRP condition and/or the first number of times condition; the first RSRP condition includes any one or more of the following: the RSRP obtained by measuring the reference signal from the access network device is less than the first threshold value ; The variation range of RSRP obtained by measuring the reference signal in the first time period is greater than the second threshold value; The first number of times conditions include any one or more of the following: the maximum number of repetitions required for successful decoding of the PDCCH is greater than The third threshold value; the proportion of successfully decoded PDCCHs in the second time period is less than the fourth threshold value; in the third time period, the number of times the PDCCHs are successfully decoded after the WUS indicates the existence of the first message is less than the fifth threshold value; The difference between the number of repetitions required to successfully decode the PDCCH in the DRX cycle and the number of repetitions required to successfully decode the PDCCH in the second DRX cycle is greater than the sixth threshold value, and the first DRX cycle is before the second DRX cycle of one DRX cycle.

In a possible implementation manner, the processing unit 1401 is configured to: in the case that the first channel state satisfies a second condition, determine that the monitoring frequency domain information is third frequency domain information, and the second condition Including: the second RSRP condition and/or the second time condition; the second RSRP condition includes: the RSRP obtained by measuring the reference signal from the access network device is greater than the seventh threshold value; the second time condition includes: Any one or more of the following: the maximum number of repetitions required to successfully decode the PDCCH is less than the eighth threshold; the ratio of the successfully decoded PDCCH in the fourth period is greater than the ninth threshold; in the fifth period, the WUS indicates that there is a The number of times that the PDCCH is successfully decoded after one message is greater than the tenth threshold.

In a possible implementation manner, the processing unit 1401 is further configured to: after receiving the first message from the access network device on the resource corresponding to the monitoring frequency domain information, reselection by the second cell to the first cell; if the second channel state with the access network device satisfies the second condition, control the communication unit 1402 to receive information from the access network on the resource corresponding to the third frequency domain information The first message of the network device.

When the communication apparatus 1400 is used to implement the function of the access network device in the method embodiment of FIG. 13:

In a possible implementation manner, the communication apparatus 1400 includes: a processing unit 1401, configured to determine a listening frequency for sending the first message when the third channel state with the terminal device satisfies the third condition domain information; the communication unit 1402 is configured to send the first message to the terminal device on the resource corresponding to the monitoring frequency domain information.

In a possible implementation manner, the communication apparatus 1400 includes: the first message is used for paging a terminal device.

In a possible implementation manner, the communication apparatus 1400 includes: the third channel state with the terminal device satisfying the third condition includes any one or more of the following: obtaining the terminal device from the core network device The third indication information of the terminal device is used to indicate that the terminal device is in a static state; the fourth indication information of the terminal device is obtained from the terminal device, and the fourth indication information is used to indicate the terminal device The device is in a static state; the variation of the third channel state within the sixth time period is less than the eleventh threshold value.

FIG. 15 shows an apparatus 1500 provided in this embodiment of the present application. The apparatus shown in FIG. 15 may be a hardware circuit implementation of the apparatus shown in FIG. 14 . The communication apparatus can be applied to the flowcharts shown in FIG. 5 to FIG. 11 to perform the functions of the terminal equipment or the functions of the access network equipment or the functions of the core network equipment in the above method embodiments, and can also be applied to the functions shown in FIG. 12 . In the flowchart shown in FIG. 13 , the functions of the terminal equipment in the above method embodiments are performed, and the flowchart shown in FIG. 13 is also applicable to perform the functions of the access network equipment in the above method embodiments.

For convenience of explanation, FIG. 15 only shows the main components of the communication device.

The apparatus 1500 shown in FIG. 15 includes at least one processor 1520, configured to implement any one of the methods in FIGS. 5 to 13 provided by the embodiments of the present application.

The apparatus 1500 may also include at least one memory 1530 for storing program instructions and/or data. Memory 1530 and processor 1520 are coupled. The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. Processor 1520 may cooperate with memory 1530. Processor 1520 may execute program instructions stored in memory 1530 . At least one of the at least one memory may be included in the processor.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

It should be noted that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processing circuit (digital signal processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other programmable chips. Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), 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 link dynamic random access memory (synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

The apparatus 1500 may also include a communication interface 1510 for communicating with other devices through a transmission medium, so that the apparatus used in the apparatus 1500 may communicate with other devices. In this embodiment of the present application, the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces. In this embodiment of the present application, when the communication interface is a transceiver, the transceiver may include an independent receiver and an independent transmitter; it may also be a transceiver integrating a transceiver function, or an interface circuit.

The apparatus 1500 may also include a communication line 1540 . The communication interface 1510, the processor 1520 and the memory 1530 may be connected to each other through a communication line 1540; the communication line 1540 may be a peripheral component interconnect (PCI for short) bus or an extended industry standard architecture (extended industry standard architecture). , referred to as EISA) bus and so on. The communication line 1540 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 15, but it does not mean that there is only one bus or one type of bus.

Based on the above content and the same concept, the present application provides a communication device including a processor and a communication interface for receiving signals from other communication devices other than the communication device and transmitting to the processor or a communication interface. Send the signal from the processor to other communication devices other than the communication device, and the processor is used to implement the terminal device of the method embodiment shown in FIG. 5 to FIG. 11 through a logic circuit or executing code instructions , or the functions of the access network equipment in the method embodiments shown in FIG. 5 to FIG. 11 , or the functions of the core network equipment in the method embodiments shown in FIG. 5 to FIG. 11 , or the method implementation shown in FIG. 12 The function of the terminal device in the example, or the function of the access network device in the method embodiment shown in FIG. 13 .

Based on the above content and the same concept, the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a communication device, the above-mentioned FIG. 5 is realized. To the functions of the terminal device in the method embodiment shown in FIG. 11 , or the function of the access network device in the method embodiment shown in FIG. 5 to FIG. 11 , or the core network of the method embodiment shown in FIG. 5 to FIG. 11 The function of the device, or the function of the terminal device in the method embodiment shown in FIG. 12 , or the function of the access network device in the method embodiment shown in FIG. 13 .

Based on the above content and the same concept, the present application provides a computer program product, the computer program product includes a computer program or an instruction, when the computer program or instruction is executed by a communication device, the above-mentioned FIG. 5 to FIG. 11 are implemented. The functions of the terminal equipment in the method embodiments, or the functions of the access network equipment in the method embodiments shown in FIG. 5 to FIG. 11 , or the functions of the core network equipment in the method embodiments shown in FIGS. The function of the terminal device in the method embodiment shown in FIG. 12 or the function of the access network device in the method embodiment shown in FIG. 13 .

Based on the above content and the same concept, the present application provides a chip including at least one processor and an interface; the interface is used to provide program instructions or data for the at least one processor; the at least one processor is used to execute all The program line instructions implement the functions of the terminal equipment in the method embodiments shown in FIG. 5 to FIG. 11 , or the functions of the access network equipment in the method embodiments shown in FIG. 5 to FIG. The functions of the core network device in the method embodiment shown, or the functions of the terminal equipment in the method embodiment shown in FIG. 12 , or the functions of the access network equipment in the method embodiment shown in FIG. 13 .

Based on the above content and the same concept, the present application provides a communication system, including the terminal equipment in the method embodiments shown in FIGS. 5 to 11 , the access network in the method embodiments shown in FIGS. 5 to 11 . device, and the core network device of the method embodiment shown in FIG. 5 to FIG. 11 , or the function of the terminal device of the method embodiment shown in FIG. 12 , or the function of the access network device of the method embodiment shown in FIG. 13 . Features.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) having computer-usable program code embodied therein.

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

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A communication method, comprising:

Determine the first frequency domain information, where the first frequency domain information is the frequency domain information corresponding to the first demand information in the preset correspondence, and the first demand information is used to indicate the resource demand when transmitting a message with the terminal device ;

Send a first message to the terminal device on the resource corresponding to the first frequency domain information.
The method of claim 1, wherein the first message is used to page the terminal device.
The method according to claim 1 or 2, wherein the first demand information is demand information from a core network device or a terminal device or a first access network device.
The method according to any one of claims 1 to 3, wherein the first demand information is a first demand level, and the first demand level includes a delay demand level, a coverage demand level, and a paging probability level one or more of them.
The method according to any one of claims 1 to 3, wherein the first requirement information is a first requirement parameter, and the first requirement parameter includes one or more of the following parameters: maximum repetition times, reference Signal reception power RSRP, coverage enhancement level, discontinuous reception DRX cycle, wake-up signal WUS enable flag, paging opportunity density, power boost capability.
The method of claim 5, wherein the method further comprises:

receiving first request information from the terminal device, where the first request information includes first indication information, where the first indication information is used to update the first demand parameter;

Send a second demand parameter to the terminal device, where the second demand parameter is the updated first demand parameter.
The method according to claim 3, wherein the terminal device is in a radio resource control (RRC) inactive state, and the first demand information is demand information from a first access network device, comprising:

requesting the first access network device for the context of the terminal device, where the context of the terminal device includes the first requirement information;

A context of the terminal device is received from the first access network device.
The method according to any one of claims 1 to 7, wherein the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum repetition times, DRX cycle, WUS enable Ability to identify, paging timing density, power boost capability;

The sending the first message to the terminal device on the resource corresponding to the first frequency domain information includes:

On the frequency domain resource included in the first frequency domain information, the first message is sent to the terminal device by using a transmission parameter corresponding to the frequency domain resource.
A communication method, comprising:

Determine the first frequency domain information, the first frequency domain information is the frequency domain information corresponding to the first demand information in the preset correspondence, and the first demand information is used to indicate the access network device when transmitting a message. resource requirements;

The first message from the access network device is received on the resource corresponding to the first frequency domain information.
9. The method of claim 9, wherein the first message is used to page the terminal device.
The method according to claim 9 or 10, wherein the first demand information is a first demand level, and the first demand level includes one of a delay demand level, a coverage demand level, and a paging probability level or multiple.
The method according to claim 9 or 10, wherein the first demand information is a first demand parameter, and the first demand parameter includes one or more of the following parameters: maximum repetition times, reference signal received power RSRP, coverage enhancement level, discontinuous reception DRX cycle, wake-up signal WUS enable flag, paging opportunity density, power boost capability.
The method of claim 12, wherein the method further comprises:

sending first request information to the access network device, where the first request information includes first indication information, where the first indication information is used to update the first demand parameter;

A second demand parameter from the access network device is received, where the second demand parameter is the updated first demand parameter.
The method according to any one of claims 9 to 13, wherein the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum repetition times, DRX cycle, WUS enable Ability to identify, paging timing density, power boost capability;

Receive the first message from the access network device on the resource corresponding to the first frequency domain information, including:

On the frequency domain resource included in the first frequency domain information, use the transmission parameter corresponding to the frequency domain resource to receive the first message from the access network device.
A communication method, comprising:

determining the first channel state with the access network device;

determining, according to the first channel state, monitoring frequency domain information for monitoring the first message;

The first message from the access network device is received on the resource corresponding to the monitoring frequency domain information.
16. The method of claim 15, wherein the first message is used to page a terminal device.
The method according to claim 15 or 16, wherein the determining the monitoring frequency domain information for monitoring the first message according to the first channel state comprises:

In the case that the first channel state satisfies a first condition, it is determined that the monitoring frequency domain information is the second frequency domain information, and the first condition includes: the first reference signal received power RSRP condition and/or the first time number condition;

The first RSRP condition includes any one or more of the following: the RSRP obtained by measuring the reference signal from the access network device is less than the first threshold value; the RSRP obtained by measuring the reference signal within the first time period The variation range is greater than the second threshold value;

The first number of times conditions include any one or more of the following: the maximum number of repetitions required for successful decoding of the physical downlink control channel PDCCH is greater than the third threshold; the proportion of successfully decoded PDCCHs within the second time period is less than the fourth threshold Limit value; in the third period, the wake-up signal WUS indicates that the number of times of successful decoding of the PDCCH after the existence of the first message is less than the fifth threshold value; the number of repetitions required for the successful decoding of the PDCCH in the first discontinuous reception DRX cycle is the same as that in the second period. In a DRX cycle, the difference of the number of repetitions required to successfully decode the PDCCH is greater than a sixth threshold value, and the first DRX cycle is one DRX cycle before the second DRX cycle.
The method according to any one of claims 15 to 17, wherein the determining the monitoring frequency domain information for monitoring the first message according to the first channel state comprises:

In the case that the first channel state satisfies a second condition, it is determined that the monitoring frequency domain information is the third frequency domain information, and the second condition includes: a second RSRP condition and/or a second number of times condition;

The second RSRP condition includes: the RSRP obtained by measuring the reference signal from the access network device is greater than a seventh threshold;

The conditions for the second number of times include any one or more of the following: the maximum number of repetitions required for successfully decoding the PDCCH is less than the eighth threshold value; the proportion of the successfully decoded PDCCH within the fourth time period is greater than the ninth threshold value; In the five time periods, the WUS indicates that the number of times that the PDCCH is successfully decoded after the existence of the first message is greater than the tenth threshold.
The method according to claim 18, wherein the third frequency domain information is determined in the first cell provided by the access network device according to the first requirement information and a preset corresponding relationship, and the The first requirement information is used to indicate a resource requirement when transmitting a message with the access network device.
The method according to any one of claims 15 to 19, wherein after receiving the first message from the access network device on the resource corresponding to the monitoring frequency domain information, the method further comprises:

reselection from the second cell to the first cell;

In the case that the second channel state between the access network device and the access network device satisfies the second condition, the first message from the access network device is received on the resource corresponding to the third frequency domain information.
A communication method, comprising:

In the case that the state of the third channel with the terminal device satisfies the third condition, determining the monitoring frequency domain information for sending the first message;

The first message is sent to the terminal device on the resource corresponding to the monitoring frequency domain information.
21. The method of claim 21, wherein the first message is used to page the terminal device.
The method according to claim 21 or 22, wherein the third channel state with the terminal device satisfying the third condition comprises any one or more of the following:

Obtain third indication information of the terminal device from the core network device, where the third indication information is used to indicate that the terminal device is in a static state;

Obtain fourth indication information of the terminal device from the terminal device, where the fourth indication information is used to indicate that the terminal device is in a stationary state;

The variation of the third channel state in the sixth time period is less than the eleventh threshold value.
A communication device, comprising:

a processing unit, configured to determine first frequency domain information, where the first frequency domain information is frequency domain information corresponding to the first demand information in the preset correspondence, and the first demand information is used to indicate the communication unit and the terminal The resource requirements of the device when transmitting messages;

The communication unit is configured to send a first message to the terminal device on the resource corresponding to the first frequency domain information.
25. The apparatus of claim 24, wherein the first message is used to page the terminal device.
The apparatus according to claim 24 or 25, wherein the first demand information is demand information from core network equipment or terminal equipment or first access network equipment.
The apparatus according to any one of claims 24 to 26, wherein the first demand information is a first demand level, and the first demand level includes a delay demand level, a coverage demand level, and a paging probability level one or more of them.
The apparatus according to any one of claims 24 to 26, wherein the first demand information is a first demand parameter, and the first demand parameter includes one or more of the following parameters: a maximum number of repetitions, a reference Signal reception power RSRP, coverage enhancement level, discontinuous reception DRX cycle, wake-up signal WUS enable flag, paging opportunity density, power boost capability.
The apparatus according to any one of claims 24 to 28, wherein the communication unit is further configured to receive first request information from the terminal device, wherein the first request information includes first indication information, The first indication information is used to update the first demand parameter; the communication unit is further configured to send a second demand parameter to the terminal device, where the second demand parameter is the updated first demand parameter.
The apparatus according to claim 26, wherein the terminal device is in a radio resource control (RRC) inactive state, the context of the terminal device is stored in the first access network device, and the communication unit is further configured to send a message to the first access network device. The first access network device requests the context of the terminal device, where the context of the terminal device includes the first requirement information; and receives the context of the terminal device from the first access network device.
The apparatus according to any one of claims 24 to 30, wherein the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum repetition times, DRX cycle, WUS enable capacity identification, paging opportunity density, and power boosting capability; the communication unit is specifically configured to use the transmission parameter corresponding to the frequency domain resource to the terminal on the frequency domain resource included in the first frequency domain information The device sends the first message.
A communication device, comprising:

A processing unit, configured to determine first frequency domain information, where the first frequency domain information is frequency domain information corresponding to the first demand information in a preset correspondence, and the first demand information is used to instruct the communication unit to communicate with the receiver Resource requirements of networked devices when transmitting messages;

The communication unit is configured to receive the first message from the access network device on the resource corresponding to the first frequency domain information.
The apparatus of claim 32, wherein the first demand information is a first demand level, and the first demand level includes one or more of a delay demand level, a coverage demand level, and a paging probability level .
The apparatus of claim 32, wherein the first demand information is a first demand parameter, and the first demand parameter includes one or more of the following parameters: maximum repetition times, reference signal received power RSRP, Coverage enhancement level, discontinuous reception DRX cycle, wake-up signal WUS enable flag, paging opportunity density, power boost capability.
The apparatus of claim 34, wherein the communication unit is further configured to send first request information to the access network device, wherein the first request information includes first indication information, the first The indication information is used to instruct the access network device to update the first demand parameter; the communication unit is further configured to receive a second demand parameter from the access network device, where the second demand parameter is an updated The first demand parameter.
The apparatus according to any one of claims 32 to 35, wherein the transmission parameters corresponding to the frequency domain resources in the first frequency domain information include one or more of the following parameters: maximum repetition times, DRX cycle, WUS enable capacity identification, paging opportunity density, and power boosting capability; the communication unit is specifically configured to, on the frequency domain resources included in the first frequency domain information, use the transmission parameters corresponding to the frequency domain resources to receive data from the the first message of the access network device.
A communication device, comprising:

a processing unit, configured to determine a first channel state with an access network device; and determine monitoring frequency domain information for monitoring the first message according to the first channel state;

A communication unit, configured to receive the first message from the access network device on the resource corresponding to the monitoring frequency domain information.
38. The apparatus of claim 37, wherein the first message is used to page the apparatus.
The apparatus of claim 37 or 38, wherein the processing unit is configured to:

In the case that the first channel state satisfies a first condition, it is determined that the monitoring frequency domain information is the second frequency domain information, and the first condition includes: the first reference signal received power RSRP condition and/or the first time number condition;

The first RSRP condition includes any one or more of the following: the RSRP obtained by measuring the reference signal from the access network device is less than the first threshold value; the RSRP obtained by measuring the reference signal within the first time period The variation range is greater than the second threshold value;

The first number of times conditions include any one or more of the following: the maximum number of repetitions required for successful decoding of the physical downlink control channel PDCCH is greater than the third threshold; the proportion of successfully decoded PDCCHs within the second time period is less than the fourth threshold Limit value; in the third period, the wake-up signal WUS indicates that the number of times of successful decoding of the PDCCH after the existence of the first message is less than the fifth threshold value; the number of repetitions required for the successful decoding of the PDCCH in the first discontinuous reception DRX cycle is the same as that in the second period. In a DRX cycle, the difference of the number of repetitions required to successfully decode the PDCCH is greater than a sixth threshold value, and the first DRX cycle is one DRX cycle before the second DRX cycle.
The apparatus according to any one of claims 37 to 39, wherein the processing unit is configured to:

In the case that the first channel state satisfies a second condition, it is determined that the monitoring frequency domain information is the third frequency domain information, and the second condition includes: a second RSRP condition and/or a second number of times condition;

The second RSRP condition includes: the RSRP obtained by measuring the reference signal from the access network device is greater than a seventh threshold;

The conditions for the second number of times include any one or more of the following: the maximum number of repetitions required for successfully decoding the PDCCH is less than the eighth threshold value; the proportion of the successfully decoded PDCCH within the fourth time period is greater than the ninth threshold value; In the five time periods, the WUS indicates that the number of times that the PDCCH is successfully decoded after the existence of the first message is greater than the tenth threshold.
The apparatus according to claim 40, wherein the third frequency domain information is determined by the apparatus in a first cell provided by the access network device according to the first requirement information and a preset corresponding relationship , the first requirement information is used to indicate resource requirements when transmitting messages with the access network device.
The device according to any one of claims 37 to 41, wherein the processing unit is further configured to:

After receiving the first message from the access network device on the resource corresponding to the monitoring frequency domain information, reselection from the second cell to the first cell;

In the case that the state of the second channel with the access network device satisfies the second condition, control the communication unit to receive the first message from the access network device on the resource corresponding to the third frequency domain information .
A communication device, comprising:

a processing unit, configured to determine the monitoring frequency domain information for sending the first message when the state of the third channel with the terminal device satisfies the third condition;

A communication unit, configured to send the first message to the terminal device on the resource corresponding to the monitoring frequency domain information.
44. The apparatus of claim 43, wherein the first message is used to page the terminal device.
The apparatus according to claim 43 or 44, wherein the third channel state with the terminal device satisfying the third condition comprises any one or more of the following:

Obtain third indication information of the terminal device from the core network device, where the third indication information is used to indicate that the terminal device is in a static state;

Obtain fourth indication information of the terminal device from the terminal device, where the fourth indication information is used to indicate that the terminal device is in a stationary state;

The variation of the third channel state in the sixth time period is less than the eleventh threshold value.
A communication device, characterized by comprising a processor and a communication interface, the communication interface being used for receiving signals from other communication devices other than the communication device and transmitting to the processor or transferring signals from the processor The signal is sent to other communication devices other than the communication device, and the processor is used to implement the method according to any one of claims 1 to 8 or any one of 9 to 14 through logic circuits or executing code instructions. The method of one, or the method of any one of 15 to 20, or the method of any one of 21 to 23.
A computer-readable storage medium, characterized in that a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed by a communication device, any one of claims 1 to 8 is implemented. The method of item 1, or the method of any one of 9 to 14, or the method of any one of 15 to 20, or the method of any one of 21 to 23.
A computer program product, characterized in that the computer program product comprises a computer program or an instruction, when the computer program or instruction is executed by a communication device, the method, Or the method of any one of 9 to 14, or the method of any one of 15 to 20, or the method of any one of 21 to 23.