WO2023051202A1 - Method for paging, and communication apparatus - Google Patents

Abstract

Provided in the present application are a method for paging, and a communication apparatus. The method comprises: acquiring first indication information, wherein the first indication information is used for indicating that a first channel/first signal and a first synchronization signal block (SSB) have a first relationship, the first channel/first signal is used for indicating first information, and the first information comprises whether paging information is transmitted in a first paging occasion (PO); and according to the first relationship, receiving the first information by using the first SSB. In the solutions of the present application, the relationship between a first channel/first signal and a first SSB can be acquired, and first information is received according to the relationship and a receiving mode of the first SSB, such that a terminal device can more accurately receive the first information.

Description

A method and communication device for paging

This application claims the priority of a Chinese patent application with an application date of September 29, 2021, an application number of 202111150199.2, and an application title of "A Method and Communication Device for Paging", the entire contents of which are incorporated herein by reference Applying.

technical field

The present application relates to the communication field, and more particularly, relates to a method and a communication device for paging.

Background technique

In the new radio (new radio, NR), the state of the user equipment (UE) includes three types, radio resource control idle state (radio resource control_idle, RRC_IDLE), RRC inactive state (RRC_INACTIVE) and RRC connection state (RRC_CONNECTED). When the network device has downlink data to be sent to the UE in the RRC_IDLE or RRC_INACTIVE state, the network device needs to paging the UE first through the paging process to notify the UE to establish or restore the RRC connection before data transmission can be performed.

Since the UE does not know whether the network device really has a paging sent to itself before receiving the paging, the UE in the RRC_IDLE or RRC_INACTIVE state will send a message at each paging opportunity in each paging frame (paging frame, PF) (paging occasion, PO) go up to try to receive paging downlink control information (downlink control information, DCI), and receive paging physical downlink shared channel (physical downlink share channel, PDSCH) according to the scheduling of paging DCI. Only after the UE completely parses the paging PDSCH data, will it know whether the network device really has paging data sent to itself. If the network device does not send paging to the UE on a PO, then the UE will waste power consumption when receiving and analyzing data on the PO.

In order to solve the power consumption problem of terminal equipment receiving paging in the idle state or inactive state, it is planned to introduce the first information in the NR system. The first information is used to indicate whether to transmit paging information in the PO. The first information can be called It is paging early indication (PEI). The first information is sent before the PO, and the UE may receive the first information before the PO, and determine whether to receive the paging DCI and paging PDSCH in the PO according to the indication of the first information, so as to save power consumption.

However, in the actual application of the first information, how the terminal device accurately receives the first information is an urgent problem to be solved.

Contents of the invention

The present application provides a paging method and communication device, by defining the relationship between the first channel/first signal and the first SSB, so that the terminal equipment receives the first information.

In a first aspect, a paging method is provided, and the method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in the present application.

The method includes: acquiring first indication information, the first indication information is used to indicate that the first channel/first signal has a first relationship with the first synchronization signal block SSB, and the first channel/first signal is used to indicate the first Information, the first information includes whether paging information is transmitted in the first paging occasion PO; according to the first relationship, use the first SSB to receive the first information.

According to the solution of the present application, the relationship between the first channel/first signal and the first SSB can be defined, and the first information can be received according to the relationship and the receiving manner of the first SSB, so that the terminal device can receive the first information more accurately.

On the other hand, the terminal device can acquire whether paging information exists in the first paging occasion according to the received first information, which helps to reduce power consumption of the terminal device.

With reference to the first aspect, in some implementation manners of the first aspect, the first relationship is: the first channel/first signal and the first SSB are sent on the same port, or a QCL relationship.

That is, the first relationship is a spatial correlation relationship or a channel relationship between the first channel/first signal and the first SSB.

With reference to the first aspect, in some implementation manners of the first aspect, the first relationship is that the first channel/first signal and the first SSB are sent on the same port.

With reference to the first aspect, in some implementations of the first aspect, according to the first relationship, using the first SSB to receive the first information includes: determining a first hypothetical relationship according to the first relationship, where the first hypothetical relationship is the first channel The /first signal and the first SSB have the same transmission channel; the first channel/first signal is received according to a first assumed relationship and the first SSB.

With reference to the first aspect, in some implementation manners of the first aspect, the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A.

With reference to the first aspect, in some implementations of the first aspect, according to the first relationship, using the first SSB to receive the first information includes: determining a second hypothetical relationship according to the first relationship, where the second hypothetical relationship is the first channel The Doppler frequency shift, Doppler spread, average delay and delay spread of the first signal and the first SSB are the same; the first channel/the first signal is received according to the second assumed relationship and the first SSB.

With reference to the first aspect, in some implementation manners of the first aspect, the first relationship is a QCL relationship, and the QCL relationship includes type C.

With reference to the first aspect, in some implementations of the first aspect, according to the first relationship, using the first SSB to receive the first information includes: determining a third hypothetical relationship according to the first relationship, where the third hypothetical relationship is the first channel The Doppler frequency shift and the average delay of the first signal and the first SSB are the same; the first channel/the first signal is received according to the third assumed relationship and the first SSB.

With reference to the first aspect, in some implementation manners of the first aspect, the QCL relationship further includes type D.

With reference to the first aspect, in some implementations of the first aspect, according to the first relationship, using the first SSB to receive the first information includes: determining a fourth hypothetical relationship according to the first relationship, where the fourth hypothetical relationship is the first channel The spatial reception parameters of the /first signal and the first SSB are the same; the first channel/first signal is received according to the fourth assumed relationship and the first SSB.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: receiving a first channel/first signal from a network device.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: analyzing the first information according to the first channel/first signal.

With reference to the first aspect, in some implementations of the first aspect, the first channel is used to indicate the first information, including: the first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate first information.

With reference to the first aspect, in some implementation manners of the first aspect, the first signal is used to indicate the first information, including: indicating the first information by whether to send the first signal.

With reference to the first aspect, in some implementation manners of the first aspect, the first signal multiplexes a sequence of a secondary synchronization signal SSS, a tracking reference signal TRS, or a channel state information reference signal CSI-RS.

With reference to the first aspect, in some implementation manners of the first aspect, the method further includes: performing time-frequency synchronization by using the first channel/first signal.

In a second aspect, a communication method is provided, and the method may be executed by a network device, or may also be executed by a chip or a circuit configured in the network device, which is not limited in the present application.

The method includes: sending first indication information to the terminal device, the first indication information is used to indicate that the first channel/first signal and the first synchronization signal block SSB have a first relationship, and the first channel/first signal is used to indicate the first One piece of information, the first piece of information includes whether to transmit paging information at the first paging occasion PO; and the first piece of information is sent to the terminal device according to the first relationship and the first SSB transmission mode.

According to the solution of the present application, the relationship between the first channel/first signal and the first SSB can be defined, and the first information can be received according to the relationship and the receiving manner of the first SSB, so that the terminal device can receive the first information more accurately.

On the other hand, the terminal device can acquire whether paging information exists in the first paging occasion according to the received first information, which helps to reduce power consumption of the terminal device.

With reference to the second aspect, in some implementation manners of the second aspect, the first relationship is: the first channel/first signal and the first SSB are sent on the same port, or a QCL relationship.

That is, the first relationship is a spatial correlation relationship or a channel relationship between the first channel/first signal and the first SSB.

With reference to the second aspect, in some implementation manners of the second aspect, the first relationship is that the first channel/first signal and the first SSB are sent on the same port.

With reference to the second aspect, in some implementation manners of the second aspect, the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A or type C.

With reference to the second aspect, in some implementation manners of the second aspect, the QCL relationship further includes type D.

With reference to the second aspect, in some implementations of the second aspect, the first channel is used to indicate the first information, including: the first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate first information.

With reference to the second aspect, in some implementation manners of the second aspect, the first signal is used to indicate the first information, including: indicating the first information by whether to send the first signal.

With reference to the second aspect, in some implementation manners of the second aspect, the first information multiplexes sequences of the secondary synchronization signal SSS, the tracking reference signal TRS, or the channel state information reference signal CSI-RS.

With reference to the second aspect, in some implementation manners of the second aspect, the method further includes: sending the first channel/first signal to the terminal device.

In a third aspect, a communication device is provided. The device may be a terminal device, or may also be a chip or a circuit configured in the terminal device, which is not limited in the present application.

The device includes: a processing unit, configured to obtain first indication information, the first indication information is used to indicate that the first channel/first signal and the first synchronization signal block SSB have a first relationship, and the first channel/first signal It is used to indicate the first information, and the first information includes whether to transmit paging information in the first paging occasion PO. The transceiver unit is configured to use the first SSB to receive the first information according to the first relationship.

According to the solution of the present application, the relationship between the first channel/first signal and the first SSB can be defined, and the first information can be received according to the relationship and the receiving method of the first SSB, so that the terminal device can receive the first information more accurately.

On the other hand, the terminal device can acquire whether paging information exists in the first paging occasion according to the received first information, which helps to reduce power consumption of the terminal device.

With reference to the third aspect, in some implementation manners of the third aspect, the first relationship is: the first channel/first signal and the first SSB are sent on the same port, or a QCL relationship.

That is, the first relationship is a spatial correlation relationship or a channel relationship between the first channel/first signal and the first SSB.

With reference to the third aspect, in some implementation manners of the third aspect, the first relationship is that the first channel/first signal and the first SSB are sent on the same port.

With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: determine a first hypothetical relationship according to the first relationship, where the first hypothetical relationship is that the first channel/first signal and the first SSB have the same The transmission channel; the transceiver unit is specifically configured to: receive the first channel/first signal according to the first assumed relationship and the first SSB.

With reference to the third aspect, in some implementation manners of the third aspect, the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A.

With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: determine a second hypothetical relationship according to the first relationship, where the second hypothetical relationship is a multiple of the first channel/first signal and the first SSB The Doppler frequency shift, the Doppler spread, the average delay and the delay spread are the same; the transceiver unit is specifically configured to: receive the first channel/first signal according to the second assumed relationship and the first SSB.

With reference to the third aspect, in some implementation manners of the third aspect, the first relationship is a QCL relationship, and the QCL relationship includes type C.

With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: determine a third hypothetical relationship according to the first relationship, where the third hypothetical relationship is a multiple of the first channel/first signal and the first SSB The Puler frequency shift and the average time delay are the same; the transceiver unit is specifically configured to: receive the first channel/first signal according to the third assumed relationship and the first SSB.

With reference to the third aspect, in some implementation manners of the third aspect, the QCL relationship further includes type D.

With reference to the third aspect, in some implementations of the third aspect, the processing unit is further configured to: determine a fourth hypothetical relationship according to the first relationship, where the fourth hypothetical relationship is the space of the first channel/first signal and the first SSB The receiving parameters are the same; the transceiver unit is specifically configured to: receive the first channel/first signal according to the fourth assumed relationship and the first SSB.

With reference to the third aspect, in some implementation manners of the third aspect, the transceiving unit is further configured to: receive a first channel/first signal from a network device.

With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: analyze the first information according to the first channel/first signal.

With reference to the third aspect, in some implementation manners of the third aspect, the first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate the first information.

With reference to the third aspect, in some implementation manners of the third aspect, the first information is indicated by whether to send the first signal.

With reference to the third aspect, in some implementation manners of the third aspect, the first signal multiplexes sequences of the secondary synchronization signal SSS, the tracking reference signal TRS, or the channel state information reference signal CSI-RS.

With reference to the third aspect, in some implementation manners of the third aspect, the processing unit is further configured to: use the first channel/first signal to perform time-frequency synchronization.

In a fourth aspect, a communication device is provided. The device may be a network device, or may also be a chip or a circuit configured in the network device, which is not limited in the present application.

The device includes: a transceiver unit, which sends first indication information to the terminal equipment, the first indication information is used to indicate that the first channel/first signal and the first synchronization signal block SSB have a first relationship, and the first channel/first signal uses In order to indicate the first information, the first information includes whether to transmit paging information in the first paging occasion PO. The transceiver unit is further configured to: send the first information to the terminal device according to the first relationship and the sending manner of the first SSB.

According to the solution of the present application, the relationship between the first channel/first signal and the first SSB can be defined, and the first information can be received according to the relationship and the receiving manner of the first SSB, so that the terminal device can receive the first information more accurately.

On the other hand, the terminal device can acquire whether paging information exists in the first paging occasion according to the received first information, which helps to reduce power consumption of the terminal device.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first relationship is: the first channel/first signal and the first SSB are sent on the same port, or a QCL relationship.

That is, the first relationship is a spatial correlation relationship or a channel relationship between the first channel/first signal and the first SSB.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first relationship is that the first channel/first signal and the first SSB are sent on the same port.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A or type C.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the QCL relationship further includes type D.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate the first information.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first information is indicated by whether to send the first signal.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the first information multiplexes sequences of the secondary synchronization signal SSS, the tracking reference signal TRS, or the channel state information reference signal CSI-RS.

With reference to the fourth aspect, in some implementation manners of the fourth aspect, the transceiving unit is further configured to: send the first channel/first signal to the terminal device.

In a fifth aspect, a communication device is provided, including: at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute the computer program or instruction stored in the at least one memory, so that The communication device executes the method in any one of the above first aspect to the second aspect or any possible implementation manner of the first aspect to the second aspect.

According to the sixth aspect, a computer-readable storage medium is provided, and a computer program or instruction is stored on the computer-readable storage medium, and when the computer program or instruction is run on a computer, the computer is made to execute the above-mentioned first aspect to the first aspect. The method in any one of the two aspects or any possible implementation of the first aspect to the second aspect.

In a seventh aspect, a chip system is provided, including: a processor, the processor is used to execute a computer program or an instruction in a memory, so as to realize any one of the above-mentioned first to second aspects or the first to second aspects A method in any possible implementation of an aspect.

In an eighth aspect, a computer program product is provided, including a computer program or an instruction. When the computer program or instruction is executed, any one of the above-mentioned first to second aspects or the first to second aspects The method in any one of the possible implementations is executed.

Description of drawings

Fig. 1 is a schematic diagram of a communication system to which the embodiment of the present application is applicable.

Fig. 2 is a schematic diagram of content carried by an SSB symbol provided by an embodiment of the present application.

Fig. 3 is a schematic diagram of an SSB time-domain multiplexing pattern provided by an embodiment of the present application.

Fig. 4 is a schematic flowchart of a paging method provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a sending timing of a first signal provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a sending timing of a first channel/first signal provided by an embodiment of the present application.

Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 9 is a structural block diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex) , TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) Communication System, Fifth Generation (5th Generation, 5G) Mobile Communication System or New Air Interface ( new radio, NR). Wherein, the 5G mobile communication system may be a non-standalone network (non-standalone, NSA) or a standalone network (standalone, SA).

The technical solution provided by this application can also be applied to machine type communication (machine type communication, MTC), inter-machine communication long-term evolution technology (long term evolution-machine, LTE-M), device-to-device (device-to-device, D2D) A network, a machine to machine (M2M) network, an Internet of things (IoT) network, or other networks. Wherein, the IoT network may include, for example, the Internet of Vehicles. Among them, the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and Infrastructure (vehicle to infrastructure, V2I) communication, vehicle to pedestrian (vehicle to pedestrian, V2P) or vehicle to network (vehicle to network, V2N) communication, etc.

The technical solution provided by this application can also be applied to future communication systems, such as the sixth generation (6th Generation, 6G) mobile communication system and the like. This application is not limited to this.

In this embodiment of the present application, a terminal device may also be called a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user device.

A terminal device may be a device that provides voice/data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, examples of some terminals can be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiver function (such as notebook computer, palmtop computer, etc.), mobile internet device (mobile internet device, MID), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), wireless terminals in self driving (self driving), wireless in remote medical (remote medical) Terminals, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home (for example, TV home appliances, smart boxes, game consoles), cellular phones, cordless phones, session initiation protocol (session initiation protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (PDAs) ), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or future evolution of public land mobile network (public land mobile network, PLMN) in the terminal equipment, etc.

Among them, wearable devices can also be called wearable smart devices, which 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. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In addition, the terminal device may also be a terminal device in an Internet of Things (Internet of things, IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and object interconnection. IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.

In the embodiment of the present application, the terminal device can also be a vehicle or a complete vehicle, and communication can be realized through the Internet of Vehicles, or it can be a component located in the vehicle (for example, placed in the vehicle or installed in the vehicle), that is, the vehicle terminal device , on-board module or on-board unit (OBU).

In addition, terminal equipment can also include sensors such as smart printers, train detectors, and gas stations. The main functions include collecting data (partial terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves to transmit uplink data to network equipment. .

In this embodiment of the present application, the network device may be any device with a wireless transceiver function. The equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC) , base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless fidelity (wireless fidelity, WiFi) system Access point (access point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, Such as a baseband unit (BBU), or a distributed unit (DU), or a base station in the next-generation communication 6G system, etc.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and realizing the functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, realizing the functions of the radio link control (radio link control, RLC) layer, medium access control (medium access control, MAC) layer and physical (physical, PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , or, sent by DU and CU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

The network device provides services for the cell, and the terminal device communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network device. The cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to a small cell, where the small cell can include: a metro cell, a micro cell, a pico cell, a femto cell, etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

FIG. 1 is a schematic diagram of a communication system 100 applicable to the communication method of the embodiment of the present application. As shown in FIG. 1 , the communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. 1 . The network device 110 and the terminal device 120 may communicate through a wireless link. Each communication device, such as the network device 110 or the terminal device 120, may be configured with multiple antennas. For each communication device in the communication system, the configured plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals. Therefore, communication between various communication devices in the communication system, and between the network device 110 and the terminal device 120 may be performed through the multi-antenna technology.

It should be understood that FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system may also include other network devices or other terminal devices, which are not shown in FIG. 1 .

It should also be understood that FIG. 1 is only an application scenario of the embodiment of the present application, and the method provided in the embodiment of the present application is not limited to the communication between the network device and the terminal device, and can also be applied to the communication between the terminal device and the terminal device. communication etc. This application does not limit the scenarios to which this method is applied. In the embodiments shown below, the method provided in the embodiments of the present application is described in detail by taking the interaction between the network device and the terminal device as an example for ease of understanding and description.

It should also be understood that the embodiments shown below do not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the present application can be executed according to this application. The method provided by the application embodiment can be used for communication, for example. The execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program. For the sake of brevity, the following description takes the execution subject as a single entity as an example. However, the execution subject of the method provided by the embodiment of the present application may be multiple entities, and these entities may be distributed in different locations. For example, the processing performed by the network device may be respectively performed by at least one of an independent central unit (central unit, CU), a distributed unit (distributed unit, DU), and a remote unit (remote unit, RU).

To facilitate understanding of the embodiments of the present application, terms involved in the embodiments of the present application are briefly introduced below.

1. Quasi-co-location (QCL) relationship

The QCL relationship can also be referred to as the QCL hypothesis, which is used to indicate the spatial relationship between two reference signals or a reference signal and a channel, where the target reference signal can generally be a demodulation reference signal (demodulation reference signal, DMRS), channel state Information reference signal (channel state information reference signal, CSI-RS), or transmission channel, such as physical downlink shared channel PDSCH, physical downlink control channel PDCCH, physical uplink shared channel PUSCH, physical uplink control channel PUCCH, etc., and the cited The reference signal or source reference signal can generally be CSI-RS, tracking reference signal (tracking reference signal, TRS), synchronization signal/broadcast channel block (synchronous signal/physical broadcast channel block, SSB) and the like.

It should be understood that the characteristic parameters of two reference signals or channels satisfying the QCL relationship are the same, so the characteristic parameters of the target reference signal can be deduced based on the resource index of the source reference signal. Wherein, the characteristic parameters include one or more of the following parameters: average channel gain, average channel delay (average delay), delay spread (delay spread), Doppler spread (doppler spread), Doppler frequency doppler shift, spatial Rx parameters, etc. These characteristic parameters describe the channel characteristics between the antenna ports of the source reference signal and the target reference signal, and help the terminal device to complete the receiving process at the receiving side according to the QCL assumption. It should be understood that the terminal may receive the target reference signal according to the characteristic parameter information of the source reference signal indicated by the QCL hypothesis. In order to save the QCL hypothesis indication overhead from the network device side to the terminal device side, as an optional implementation, the network device side may indicate a physical downlink control channel (physical downlink control channel, PDCCH) or a physical downlink shared channel (physical downlink control Channel, PDSCH) demodulation reference signal and one or more of multiple reference signal resources configured to the terminal device satisfy the QCL relationship, for example, the reference signal may be CSI-RS or SSB.

Four types of QCL are defined in the existing standard, and the base station can configure one or more types of QCL for the UE at the same time, such as QCL type A+D, C+D:

Type A (type A): Doppler frequency shift, Doppler spread, average delay, delay spread;

Type B (type B): Doppler frequency shift, Doppler spread;

Type C (type C): Doppler frequency shift, average delay;

Type D (type D): space to receive parameters.

The characteristic parameters of the two reference signals or channels satisfying the QCL relationship are the same, so the characteristic parameters of the target reference signal can be deduced based on the resource index of the source reference signal.

2. Synchronization signal/physical broadcast channel block (SSB)

SSB can also be called a synchronization signal/physical broadcast channel (physical broadcast channel, PBCH) block (block), which consists of a primary synchronization signal (PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a broadcast channel (physical broadcasting channel, PBCH), occupying 4 symbols in the time domain.

Fig. 2 is a schematic diagram of contents included in an SSB symbol provided by an embodiment of the present application. The SSB bandwidth is 20 resource blocks (resource block, RB), including 240 subcarriers. The first symbol carries PSS, which includes 127 subcarriers, that is, the PSS sequence length is 127, and the PSS only occupies the middle part of the SSB frequency domain, and no other data or control information is sent on both sides; the second and fourth symbols are The broadcast channel (physical broadcasting channel, PBCH), mainly carries system information; the third symbol carries PBCH and SSS at the same time, where the sequence length of SSS is 127 like that of PSS, and both occupy 127 resource elements in the middle of the SSB frequency domain (resource element, RE). Both sides of the SSS use 48 REs to send the PBCH respectively, and there is an interval of 8 and 9 REs between the SSS and the PBCH.

3. Synchronization signal burst (SS burst)

The network device sends the SSB according to the time-domain multiplexing pattern of the SSB in the pre-configured SS burst, and the time-domain multiplexing pattern of the SSB may be as shown in FIG. 3 . Fig. 3 is a schematic diagram of an SSB time-domain multiplexing pattern provided by an embodiment of the present application.

The SSB in the NR network generally uses multiple beams to send, and there is a sending cycle in the sending of SSB. For example, the sending cycle of SSB can be 20ms. In each SSB cycle, the network device can use time division within a short period of time. Sending SSBs of multiple different beams. This short duration is called an SS burst. In the NR system, according to different operating frequency bands, the SSBs of different beams are multiplexed according to different time domain patterns. For example, in case A, the subcarrier spacing is 15kHz, and the length of one SS burst is 2ms, that is, the network device can send SSB in two time slots with a length of 1ms, and a maximum of 4 different SSBs can be sent in this SS burst. The SSBs in the direction, namely SSB0, SSB1, SSB2 and SSB3 in the figure, the filled part in the figure is the symbol position where the SSB can be sent. It should be understood that in one SS burst, the network device does not necessarily need to send SSBs in all four directions, and the network device can configure the number of SSBs actually sent and the symbol positions used for sending SSBs through system messages. For example, the network device may only send SSB0 and SSB1, or may only send SSB1 and SSB3.

In case B and case C, the subcarrier spacing is 30kHz, which can support two time-domain multiplexing patterns as shown in the figure. That is, an SS burst has a length of 2 ms and includes 4 time slots with a length of 0.5 ms, and a network device can send 8 SSBs in different directions at most in one SS burst.

The SSB of each beam direction occupies 4 OFDM symbols in the time domain resource, and the content included in each OFDM symbol can be shown in FIG. 2 .

4. Paging and paging messages

In NR, the UE is in three states, radio resource control idle (radio resource control_idle, RRC_IDLE) state, RRC inactive (RRC_INACTIVE) state and RRC connected (RRC_CONNECTED) state. There is no RRC connection between the UE in the idle state and the network. For the UE in the inactive state, although the RRC connection has been established with the network, the connection is suspended. When the network needs to send downlink data to an idle or inactive UE, the network needs to page the UE through a paging process to notify the UE to establish or restore the RRC connection before data transmission can be performed. That is, paging is initiated by the network. In NR, paging can be initiated by the core network, called core network paging (CN paging), or initiated by the radio access network (RAN), called RAN paging.

Paging (paging) is also called paging message (paging message), which is used to trigger terminal equipment to establish an RRC connection, or notify terminal equipment of system information updates, and send earthquake and tsunami warnings, etc. The content of the paging message is sent to the terminal device through the physical downlink shared channel (PDSCH), and the PDSCH is the PDCCH scheduling scrambled by the paging radio network temporary identifier (P-RNTI) of.

A UE in an idle or inactive state supports discontinuous reception (DRX) to receive paging messages to reduce power consumption. This DRX is also called paging DRX, and the discontinuous reception cycle (DRX cycle) is determined by the network Device configuration, where DRX cycle is also called paging cycle. With DRX, UEs in an idle or inactive state will only "wake up" to receive paging messages during a predefined period of time, and can remain "sleeping" and stop receiving paging messages at other times, thus reducing Power consumption, improving the battery life of the UE.

For paging discontinuous reception (DRX), idle or inactive UEs will only try to receive paging radio at a specific paging occasion (PO) in each paging cycle. A PDCCH scrambled by a network temporary identifier (paging radio network temporary identifier, P-RNTI). In the NR system, PO is a monitoring occasion (MO) of a group of physical downlink control channels (physical downlink control channel, PDCCH). A PO may include multiple time slots (time slots), for example, a time slot may be a subframe or an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol. The network device may send downlink control information (downlink control information, DCI) for scheduling paging messages in the PO.

5. Paging frame (paging frame, PF) and paging occasion (paging occasion, PO)

The specific time for UE to receive paging is determined by paging frame (paging frame, PF) and PO. PF represents a frame for sending paging, that is, UEs in an idle state and an inactive state only try to receive paging in the PF, and PO represents an opportunity to try to receive paging in a PF. Since the paging message is actually scheduled using the DCI scrambled by the P-RNTI, one PO actually corresponds to S detection opportunities of the DCI scrambled by the P-RNTI, and S can be obtained through the number of system messages.

PF is determined according to the following formula (1):

(SFN+PF_offset)mod T＝(T div N)*(UE_ID mod N) (1)

Among them, SFN represents the system frame number (system frame number, SFN), PF_offset is the frame offset of PF, and T represents the DRX cycle or paging cycle, which is a time unit, that is, UE can have one or Multiple chance attempts to receive page. N=min(T,nB), where nB represents the number of PFs in one DRX cycle or paging cycle. In addition, the value range of the SFN is 0-1023. The value range of T is 32, 64, 128, 256, and the unit is radio frame. The value of nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, and the unit is wireless frame. UE_ID is a UE identifier, which can be the 5th generation system architecture evolution-temporary mobile subscriber identity (the 5th generation system architecture evolution-temporary mobile subscriber identity, 5G-S-TMSI) mod 1024 or a complete inactive RNTI (full inactive-RNTI , full I-RNTI).

When an SFN satisfies the above formula, the SFN is considered as a PF. The UE will attempt to receive paging within this PF. For each PF, there may be multiple POs, and the parameter Ns is used in NR to indicate the number of POs corresponding to a PF. It should be noted that the gNB will not send a paging message to the UE on every PO, and the UE will detect the paging DCI at the PO to determine whether the gNB has sent a paging message.

Additionally, a PF can contain one or more POs or origins of POs. When the terminal device monitors the PO, it first determines the position of the PF, and then determines the position of the PO associated with the PF. It should be noted that a PO associated with a PF can start from inside the PF, or start from after the PF. The UE does not necessarily need to read all the POs in a PF, and the UE can determine the position of the PO it needs to monitor according to the paging configuration parameters and UE_ID.

6. Paging Early Indication (PEI)

Since the UE cannot determine whether there is a paging sent to the UE by the network device before receiving the paging, the UE will wake up at each PO, detect the paging DCI, and then receive the paging PDSCH according to the scheduling of the paging DCI. Only after the UE completely parses the paging PDSCH data, will it know whether the network device actually has paging data sent to the UE. In an actual communication network, the probability that a network device actually sends a page to a UE in each PO is very low, for example, about 10%. In this case, the UE receives paging in other about 90% PO All belong to useless power consumption overhead, which is not conducive to power consumption saving.

In order to solve the power consumption problem of terminal equipment receiving paging in the idle state or inactive state, it is planned to introduce the first information in the NR system. The first information is used to indicate whether to transmit paging information in the PO. The first information can be called It is paging early indication (PEI). This document uses PEI as an example for illustration. PEI is sent before PO and after the SS burst before that PO. In general, PEI will be close to the SS burst before PO. UE can use SSB to perform time frequency tracking (time frequency tracking) and automatic gain control (automatic gain control, AGC) estimation before PO, and after receiving the relevant SS burst After receiving the PEI, determine whether to receive the paging DCI and paging PDSCH in the PO according to the indication of the PEI. In this way, the terminal can know earlier whether it needs to receive paging DCI and paging PDSCH, and can enter the sleep state earlier if it does not need to receive paging DCI and paging PDSCH, so as to save power consumption the goal of.

However, in the actual application of the first information, how the terminal device can receive the first information more accurately is an urgent problem to be solved.

In view of this, the present application provides a paging method and communication device, by defining the relationship between the first channel/first signal and the first SSB, so that the terminal device can receive the first information according to the first SSB.

The method and communication device for paging provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 4 is a schematic flowchart of a paging method provided by an embodiment of the present application. The method 400 shown in FIG. 4 may be executed by the terminal device and the network device shown in FIG. 1 .

S410, the terminal device acquires first indication information, the first indication information is used to indicate that the first channel/first signal has a first relationship with the first synchronization signal block SSB, and the first channel/first signal is used to indicate the first information , the first information includes whether to transmit paging information at the first paging occasion PO.

In this application, "the first channel/the first signal" means the first channel or the first signal, that is, the first signal or the first channel. "The first channel/the first signal and the first synchronization signal block SSB have the first relationship" means that the first channel and the first synchronization signal block SSB have the first relationship, or the first signal and the first synchronization signal block SSB have the first relationship. relation. "The first channel/first signal is used to indicate the first information" means indicating the first information through the first channel, or indicating the first information through the first signal. The first information is PEI, and the first information includes whether to transmit paging information at the first paging occasion PO.

It should be understood that whether paging information is transmitted at the first paging occasion may be understood as whether paging information is transmitted to the terminal device at the first paging occasion, or whether there is paging at the first paging occasion.

Optionally, the configuration information of the first information may be carried in the configuration signaling used to configure the paging information, for example, the configuration information includes the monitoring timing of the first information and the like.

The terminal device may acquire information indicating that the first channel/first signal and the first synchronization signal block SSB have a first relationship, that is, first indication information. The acquisition method may be received from the network device, or according to the definition of the protocol, the terminal device reads local configuration information or preset information, so as to obtain the first indication information.

Wherein, the first relationship may be that the first channel/first signal and the first SSB are sent on the same port, or the first relationship is a QCL relationship. That is, the first relationship is a spatial correlation relationship or a channel relationship between the first channel/first signal and the first SSB.

The first SSB is the SSB associated with the first channel/signal. Specifically, the terminal may acquire which SSB is associated with the first channel/first signal sent at a certain receiving opportunity/monitoring occasion (monitoring occasion) through the configuration information. The associated SSB is the first SSB. As an example, the network may configure multiple monitoring opportunities of the first channel/first signal after a certain SS burst, and these monitoring opportunities are correspondingly associated with SSBs in the SS burst in sequence.

S420, the network device sends the first information to the terminal device, and correspondingly, the terminal device receives the first information by using the first SSB according to the first relationship.

The network device may send a first channel/first signal to the terminal device before the first PO, and indicate the first information through the first channel/first signal. The terminal device may determine the spatial correlation relationship between the first channel/first signal and the first SSB according to the acquired first indication information, and then use the first SSB to receive the first information.

According to the solution of this application, the first relationship between the first channel/first signal and the first SSB can be defined, and the first information can be received according to the first relationship and the receiving method of the first SSB, so that the terminal device can receive the first SSB more accurately. a message.

On the other hand, the terminal device can acquire whether paging information exists in the first paging occasion according to the received first information, which helps to reduce power consumption of the terminal device.

Optionally, acquiring the first indication information by the terminal device includes: the terminal device receiving the first indication information from the network device, in this case, before S420, the method 400 further includes: S401, the network device sends to the terminal device The first instruction message. That is to say, before sending the first information, the network device first indicates to the terminal device the relationship between the first channel/first signal and the first SSB.

As an example, the network device may carry the first indication information in system information (system information, SI), for example, a system information block (system information block, SIB) or a master information block (master information block, MIB). In this way, when the terminal device initially accesses, it searches for SSBs, and the searched SSBs include the first SSB, and parses the MIB information carried by the PBCH in the SSBs, and the MIB information may include the first indication information. As an example, the first SSB is the SSB with the best signal strength or signal quality among all searched SSBs; as another example, the first SSB is the best SSB in history. Or, according to the MIB information, the terminal device determines the frequency position, bandwidth and subcarrier spacing, etc. in the control resource set (control resource set, CORESET) #0, and then monitors the PDCCH scheduling SIB1 on CORESET #0, and then receives the PDSCH carrying SIB1 , to obtain SIB1 information, where the SIB1 information includes the first indication information.

Optionally, the method 400 further includes: S402, the network device sends the first SSB to the terminal device, and the terminal device receives the first SSB. When receiving the first SSB, the terminal device may obtain the first SSB receiving manner, and the first SSB receiving manner may be used to receive the first information.

Specifically, the network device may transmit the first SSB according to a pre-configured time-domain multiplexing pattern of SS bursts, where the first SSB may be any SSB in the SS burst, and the manner in which the terminal device receives the first SSB may be The terminal receives all SSBs in the SS burst, and determines that one of the SSBs has the best signal strength or signal quality, then the terminal uses the corresponding SSB in this SS burst or subsequent SS bursts as the first SSB. As an example, the terminal always receives SSBs in all directions in a certain SS burst, and records the corresponding channel parameters. When the terminal receives the first information, it always takes the corresponding SSB as the first SSB, and according to the corresponding The channel parameter of the SSB receives first information.

In an implementation manner, the first relationship is that the first channel/first signal and the first SSB are sent by the same port. For example, the first channel/first signal and the first SSB are sent at the first time unit, then the first indication information indicates that the first channel/first signal and the first SSB are sent at the same port (port), as For example, the first time unit may be 1 slot, that is, the first channel/first signal and the first SSB are sent in the same slot, or the first time unit may be 2 slots, that is, the first The channel/first signal and the first SSB are sent in adjacent time slots. When the first relationship is that the first channel/first signal and the first SSB are sent on the same port, the terminal device can determine the first hypothetical relationship according to the first relationship, and the first hypothetical relationship is the first channel/first signal It has the same transmission channel as the first SSB, and further, the terminal device receives the first channel/first signal according to the first assumed relationship and the first SSB.

In an implementation manner, the first relationship is a QCL relationship, specifically, the QCL relationship includes type A (QCL type A). When the first relationship is QCL type A, the terminal device can determine the second hypothetical relationship according to the first relationship, and the second hypothetical relationship is the Doppler frequency shift of the first channel/first signal and the first SSB, Doppler The extension, the average delay and the delay extension are the same, and further, the terminal device may receive the first channel/the first signal according to the second assumed relationship and the first SSB.

In an implementation manner, the first relationship is a QCL relationship, specifically, the QCL relationship includes type C (QCL type C). When the first relationship is QCL type C, the terminal device can determine a third hypothetical relationship according to the first relationship, and the third hypothetical relationship is the Doppler frequency shift and average delay of the first channel/first signal and the first SSB Similarly, further, the terminal device may receive the first channel/first signal according to the third assumed relationship and the first SSB.

In an implementation manner, the first relationship is a QCL relationship, specifically, the QCL relationship includes type D (QCL type D). When the first relationship is QCL type D, the terminal device may determine a fourth hypothetical relationship according to the first relationship, the fourth hypothetical relationship is that the spatial receiving parameters of the first channel/first signal and the first SSB are the same, further, the terminal device The first channel/first signal may be received according to the fourth assumed relationship and the first SSB.

It should be understood that when the first relationship is a QCL relationship, the QCL relationship can include two types at the same time, for example, including type A and type D (QCL type A+D), or including type C and type D (QCL type C+D ), or the QCL relationship may only include any one of type A, type C, and type D.

It should also be understood that the relationship between the manner in which the network device sends the first channel/first signal and the way of sending the first SSB also has a first relationship. That is, the network device refers to the transmission mode of the first SSB, and adjusts the transmission parameters when transmitting the first channel/signal, so as to satisfy the determined first relationship. Wherein, the first relationship may be determined by the network device, that is, the network device will send the first indication information to the terminal device, indicating the first relationship. The first relationship may also be defined by a protocol. In this case, for the terminal device and the network device, local configuration information or preset information may be read to obtain the first relationship.

Optionally, the terminal device receiving the first information specifically further includes: the terminal device parsing the first information according to the first channel/first signal. That is to say, after receiving the first channel/first signal, the terminal device analyzes to obtain whether paging information is transmitted in the first PO. When the first channel/first signal indicates that paging information is transmitted at the first paging opportunity PO, the terminal device can wake up at the first PO, detect the paging DCI, and receive the paging PDSCH according to the scheduling of the paging DCI. For example, the terminal device detects and receives the paging DCI in the type 1 common search space (type1-common search space, type1-common search space CSS) according to the definition in 3GPP R-16, and further receives the paging PDSCH. When the first channel/first signal indicates that no paging information is transmitted in the first paging opportunity PO, the terminal device may continue to stay in a sleep state after acquiring the first information, thereby saving power consumption.

In an implementation manner, the first information is indicated through a first channel. Specifically, the first channel is a PDCCH, and the PDCCH carries DCI, and the DCI is used to indicate the first information. In other words, the first information is carried in the DCI and indicated by the PDCCH. It should be understood that the first information at this time may also be understood as a DCI based PEI (DCI based PEI).

In an implementation manner, the first information is indicated by the first signal, specifically, the first information may be indicated by whether to send the first signal, for example, when the terminal device receives the first signal, it considers that the first PO transmission seeks paging information, when the terminal device does not receive the first signal, it is considered that the first PO has not transmitted paging information.

Optionally, when the first information is indicated by the first signal, the first signal may multiplex a sequence of SSS, TRS or CSI-RS. That is to say, at least one of the time-frequency pattern (pattern), sequence generation method, and resource configuration signaling used by the signal carrying paging information is the same as or similar to the SSS, TRS, or CSI-RS. In this case, the first The signal can also be understood as SSS based PEI (SSS based PEI), TRS based PEI (TRS based PEI), CSI-RS based PEI (CSI-RS based PEI).

As a possible implementation manner, when the first information is indicated by the first signal, the first signal may be inserted into the SS burst. Network devices generally send SSB to terminal devices through SS bursts. When sending SS bursts, the first signal is inserted into it. For example, the first signal multiplexes the SSS sequence or single-symbol PDCCH, which can be inserted into the SS burst first signal.

Fig. 5 is a schematic diagram of the sending timing of a first signal provided by the embodiment of the present application. As shown in Fig. 5, the first signal is represented by PEI, and the PEI multiplexes the SSS sequence or the single-symbol PDCCH and inserts it into the SS burst Sent with SSB. The first SSB may be the SSB with the highest received signal strength or the best signal quality. The network device may indicate to the terminal device the first relationship between the first SSB and the corresponding PEI. After receiving the first SSB, the terminal device receives the first SSB according to the first relationship. PEI.

As a possible implementation manner, the network device may also send the first channel/first signal after sending the second SS burst before paging.

FIG. 6 is a schematic diagram of a sending timing of a first channel/first signal provided by an embodiment of the present application. As shown in FIG. 6 , the first channel/first signal is represented by PEI. The network device sends the SSB to the terminal device through the SS burst, the sending period of the SS burst is 20ms, and the duration of each burst is 2ms. The network device can send the PEI after sending the second SS burst (SS burst #1) before the paging, and the terminal device first receives the SS burst #1 before the PEI, and proceeds according to the SSB in the SS burst #1. Time-frequency synchronization, since there is only one SS burst, the result of time-frequency synchronization will be rough, but it is enough for terminal equipment to receive PEI. If the PEI indicates that there is paging in the PO, the terminal device can receive SS burst #2, perform further time-frequency synchronization and time-frequency offset correction according to SS burst #2, and then complete paging reception. Optionally, after the paging is received, the terminal device may perform further operations based on the configuration of the network device, for example, if the network device configures the terminal device with an SSB-based measurement timing configuration (SSB-based measurement timing configuration, SMTC) window (window ), then the terminal device can perform inter-frequency measurement in the SMTC window after receiving the paging, and enter a deep sleep (deep sleep) state after the measurement is completed, as shown in case 1 in Figure 6. If the PEI indicates that there is no paging in the PO, the terminal device can directly perform further operations based on the configuration of the network device, for example, perform inter-frequency measurement within the SMTC window, and then enter a deep sleep state without having to receive PO paging DCI and/or paging PDSCH, as shown in case 2 in FIG. 6 . Optionally, if the network device is not configured with procedures such as measurement, the terminal device may directly enter the deep sleep state after receiving the PEI. By means of the PEI information, whether there is paging is indicated in advance, which can save the power consumption of the terminal device.

It should be noted that, in FIG. 6 , SS burst #1 includes one or more SSBs, and the network device may indicate to the terminal device that the SSBs in the SS burst and the different monitoring timings of the first channel/first signal are sequentially Correspondingly, at this time, a certain SSB has a first relationship with the first channel/first signal on a certain monitoring opportunity, for example, SSB#0. After receiving SSB#0, the terminal device receives the monitoring number 0 according to the first relationship. The first channel or the first signal on the opportunity to obtain the first information.

Optionally, the method further includes: S430, the terminal device uses the first channel/first signal to perform time-frequency synchronization.

In order to ensure that a terminal device in an idle state or an inactive state can successfully receive the first information, before receiving the first information, the terminal device generally needs to perform time-frequency tracking through the SSB to correct the time-domain and frequency-domain discrepancies between the terminal device and the network device. deviation, so that the residual time-frequency deviation of the terminal device will not affect its reception of the first information. At the same time, the terminal device can also perform AGC estimation by receiving the SSB to adjust the gain parameter of the UE receiver. In this application, after receiving the first channel/signal and acquiring the first information, the terminal may also use the first channel/signal to perform time-frequency synchronization. Compared with the time-frequency synchronization performed only through SSB in the prior art, the present application can also perform time-frequency synchronization according to the first channel/first signal, that is, resources used for time-frequency synchronization are increased, and the accuracy of time-frequency synchronization can be improved.

The above describes in detail the technical solution of the paging method provided by the embodiment of the present application with reference to FIG. 1 to FIG. 6 . The communication device provided by the embodiment of the present application is introduced below in conjunction with FIG. 7 to FIG. 9 .

Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 7 , the apparatus 700 may be a terminal device, or may be a component configured in the terminal device (for example, a unit, module, chip or chip system), and the apparatus 700 may include a processing unit 710 and a transceiver unit 720.

The processing unit 710 is configured to perform processing-related operations on the terminal device side in the above method embodiments. For example, the processing unit 710 is configured to obtain first indication information, where the first indication information is used to indicate that the first channel/first signal and the first synchronization signal block SSB have a first relationship, and the first channel/first signal uses In order to indicate the first information, the first information includes whether to transmit paging information in the first paging occasion PO.

The transceiving unit 720 is configured to perform transceiving-related operations on the terminal device side in the above method embodiments. For example: the transceiving unit 720 is configured to use the first SSB to receive the first information according to the first relationship.

It should be understood that the apparatus 700 here is embodied in the form of functional units. The term "unit" herein may refer to ASICs, electronic circuits, processors (such as shared processors, dedicated processors or group processors, etc.) and memory for executing one or more software or firmware programs, incorporating logic circuits and and/or other suitable components that support the described functionality. In an optional example, those skilled in the art can understand that the apparatus 700 may specifically be the terminal device in the above-mentioned embodiment of the method 400, and the apparatus 700 may be used to execute each process corresponding to the terminal device in the above-mentioned embodiment of the method 400 and/or or steps, in order to avoid repetition, no more details are given here.

It should also be understood that, in an implementation manner, the above-mentioned transceiver unit 720 may include a receiving unit 721 and a sending unit 722, wherein the receiving unit 721 is configured to perform a receiving function in the above-mentioned transceiver unit 720, for example, receive the first One message, the sending unit 722 is configured to execute the sending function in the above-mentioned transceiver unit 720 .

Fig. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 8 , the apparatus 800 may be a network device, or may be a component configured in the network device (for example, a unit, a module, a chip or a chip system), and the apparatus 800 includes: a transceiver unit 810 .

The transceiving unit 810 is configured to perform transceiving-related operations on the network device side in the above method embodiments. For example: the transceiver unit 810 is configured to send first indication information and first information to the terminal device, the first indication information is used to indicate that the first channel/first signal and the first synchronization signal block SSB have a first relationship, the first A channel/first signal is used to indicate first information, and the first information includes whether to transmit paging information in the first paging occasion PO.

It should be understood that the above-mentioned transceiver unit 810 may also respectively perform any other steps, operations and/or functions implemented by the network device in the above-mentioned method 400, and the specific process for each unit to perform the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiment. For the sake of brevity, details are not repeated here.

Optionally, the apparatus 800 may further include a processing unit 820 .

It should be understood that the device 800 here is embodied in the form of functional units. The term "unit" herein may refer to ASICs, electronic circuits, processors (such as shared processors, dedicated processors or group processors, etc.) and memory for executing one or more software or firmware programs, incorporating logic circuits and and/or other suitable components that support the described functionality. In an optional example, those skilled in the art can understand that the apparatus 800 may specifically be the network device in the above-mentioned embodiment of the method 400, and the apparatus 800 may be used to execute various processes and procedures corresponding to the network device in the above-mentioned method 400 embodiment. /or steps, in order to avoid repetition, no more details are given here.

It should also be understood that, in an implementation manner, the above-mentioned transceiver unit 810 may include a receiving unit 811 and a sending unit 812, wherein the receiving unit 811 is used to perform the receiving function in the above-mentioned transceiver unit 810, and the sending unit 812 is used to perform the above-mentioned sending and receiving unit 812. The sending function in unit 810, for example, sends the first information to the terminal device.

FIG. 9 is a structural block diagram of a communication device 900 provided by an embodiment of the present application. As shown in FIG. 9 , the device 900 includes: a processor 910 , a memory 920 and a transceiver 930 . The processor 910 is coupled with the memory 920 for executing instructions stored in the memory 920 to control the transceiver 930 to send signals and/or receive signals.

It should be understood that the foregoing processor 910 and memory 920 may be combined into one processing device, and the processor 910 is configured to execute program codes stored in the memory 920 to implement the foregoing functions. During specific implementation, the memory 920 may also be integrated in the processor 910 , or be independent of the processor 910 . It should be understood that the processor 910 may also correspond to each processing unit in the preceding communication device, and the transceiver 930 may correspond to each receiving unit and sending unit in the foregoing communication device.

It should also be understood that the transceiver 930 may include a receiver (or called a receiver) and a transmitter (or called a transmitter). The transceiver may further include antennas, and the number of antennas may be one or more. A transceiver may also be a communication interface or interface circuit.

Specifically, the communication apparatus 900 may correspond to the terminal device in the method 400 according to the embodiment of the present application, or the network device in the method 400. It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.

When the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input-output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

In a possible design, the device 900 may be replaced by a chip device, for example, a communication chip that may be used in the device to implement related functions of the processor 910 in the device. The chip device can be a field programmable gate array for realizing relevant functions, an application-specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, or a programmable controller or other integrated chips . The chip may optionally include one or more memories for storing program codes, which enable the processor to implement corresponding functions when the codes are executed.

Optionally, the memory and the memory involved in the foregoing embodiments may be physically independent units, or the memory may also be integrated with the processor.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program for implementing the method in the above method embodiment is stored. When the computer program runs on the computer, the computer can implement the methods in the above method embodiments.

According to the methods provided in the embodiments of the present application, the present application provides a computer program product, including a computer program, and when the computer program is run on a computer, the computer can execute the methods in the above method embodiments.

According to the method provided in the embodiment of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.

In the embodiments of the present application, words such as "exemplary" and "for example" are used as examples, illustrations or descriptions. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

It should be understood that references to "an embodiment" throughout this specification mean that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation. The names of all nodes and messages in this application are only the names set by this application for the convenience of description. The names in the actual network may be different. It should not be understood that this application limits the names of various nodes and messages. On the contrary, any with and The names of nodes or messages with the same or similar functions used in this application are regarded as the methods of this application or equivalent replacements, and all are within the protection scope of this application.

It should also be understood that in this application, "when", "if" and "if" all mean that the UE or the base station will make corresponding processing under certain objective circumstances, and it is not a limited time, and the UE is not required to Or the base station must have a judgment action when it is implemented, and it does not mean that there are other restrictions.

Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations.

Herein, the term "at least one of" or "at least one of" means all or any combination of the listed items, for example, "at least one of A, B and C", It can be expressed: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, and A, B, and C exist simultaneously. "At least one" herein means one or more. "Multiple" means two or more.

It should be understood that in each embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

It should be understood that in various embodiments of the present application, the first, second and various numbers are only for convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different information, etc.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

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

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (25)

1. A method for paging, characterized in that the method is executed by a terminal device, including:

   acquiring first indication information, where the first indication information is used to indicate that the first channel/first signal has a first relationship with the first synchronization signal block SSB, and where the first channel/first signal is used to indicate first information, The first information includes whether to transmit paging information at the first paging occasion PO;

   The first information is received using the first SSB according to the first relationship.
2. The method according to claim 1, wherein the first relationship is that the first channel/first signal and the first SSB are sent on the same port.
3. The method according to claim 2, wherein the receiving the first information using the first SSB according to the first relationship comprises:

   determining a first hypothetical relationship according to the first relationship, the first hypothetical relationship being that the first channel/first signal and the first SSB have the same transmission channel;

   The first channel/signal is received according to a first assumed relationship and the first SSB.
4. The method according to claim 1, wherein the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A.
5. The method according to claim 4, wherein the receiving the first information using the first SSB according to the first relationship comprises:

   Determine a second hypothetical relationship according to the first relationship, the second hypothetical relationship is the Doppler frequency shift, Doppler spread, average delay, and The delay spread is the same;

   The first channel/signal is received according to the second assumed relationship and the first SSB.
6. The method according to claim 1, wherein the first relationship is a QCL relationship, and the QCL relationship includes type C.
7. The method according to claim 6, wherein the receiving the first information using the first SSB according to the first relationship comprises:

   determining a third assumed relationship according to the first relationship, where the third assumed relationship is that the Doppler frequency shift and the average delay of the first channel/first signal and the first SSB are the same;

   The first channel/signal is received according to the third assumed relationship and the first SSB.
8. The method according to any one of claims 4 to 7, wherein the QCL relationship further includes type D.
9. The method according to claim 8, wherein the receiving the first information using the first SSB according to the first relationship comprises:

   determining a fourth assumed relationship according to the first relationship, where the fourth assumed relationship is that the spatial receiving parameters of the first channel/first signal and the first SSB are the same;

   The first channel/signal is received according to the fourth assumed relationship and the first SSB.
10. The method according to any one of claims 1 to 9, further comprising: parsing the first information according to the first channel/first signal.
11. The method according to any one of claims 1 to 10, wherein the first channel is used to indicate the first information, comprising:

    The first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate the first information.
12. The method according to any one of claims 1 to 10, wherein the first signal is used to indicate the first information, comprising: indicating the first information by whether to send the first signal.
13. The method according to claim 12, wherein the first signal multiplexes a sequence of a Secondary Synchronization Signal SSS, a Tracking Reference Signal TRS or a Channel State Information Reference Signal CSI-RS.
14. The method according to any one of claims 1 to 13, further comprising:

    Perform time-frequency synchronization by using the first channel/first signal.
15. A method for paging, characterized in that the method is performed by a network device, comprising:

    Sending first indication information to the terminal device, where the first indication information is used to indicate that the first channel/first signal has a first relationship with the first synchronization signal block SSB, and where the first channel/first signal is used to indicate that the first channel/signal One information, the first information includes whether to transmit paging information in the first paging occasion PO;

    Sending the first information to the terminal device according to the first relationship and the sending manner of the first SSB.
16. The method according to claim 15, wherein the first relationship is that the first channel/first signal and the first SSB are sent on the same port.
17. The method according to claim 15, wherein the first relationship is a quasi-co-location QCL relationship, and the QCL relationship includes type A or type C.
18. The method according to claim 3, wherein the QCL relationship further includes type D.
19. The method according to any one of claims 15 to 18, wherein the first channel is used to indicate the first information, comprising:

    The first channel is a physical downlink control channel PDCCH, and the PDCCH carries downlink control information DCI, and the DCI is used to indicate the first information.
20. The method according to any one of claims 15 to 18, wherein the first signal is used to indicate the first information, comprising: indicating the first information by whether to send the first signal.
21. The method according to claim 20, wherein the first information multiplexes a sequence of a Secondary Synchronization Signal SSS, a Tracking Reference Signal TRS or a Channel State Information Reference Signal CSI-RS.
22. A communication device, characterized by comprising: a unit for performing each step in the method according to any one of claims 1 to 21.
23. A communication device, characterized by comprising:

    memory for storing computer instructions;

    A processor, configured to execute computer instructions stored in the memory, so that the apparatus executes the method according to any one of claims 1 to 21.
24. A computer-readable storage medium, characterized in that a computer program is stored thereon, the computer program being used to execute the method according to any one of claims 1 to 21.
25. A chip system, characterized by comprising: a processor, the processor is configured to execute a stored computer program, and the computer program is configured to execute the method according to any one of claims 1 to 21.

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