CN115884328A

CN115884328A - Method and communication device for paging

Info

Publication number: CN115884328A
Application number: CN202111150199.2A
Authority: CN
Inventors: 铁晓磊; 吴钊; 周涵; 花梦
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-03-31
Also published as: WO2023051202A1

Abstract

The application provides a method and a communication device for paging, wherein the method comprises the following steps: acquiring first indication information, wherein the first indication information is used for indicating that a first channel/first signal and a first Synchronous Signal Block (SSB) have a first relation, 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); receiving the first information using the first SSB according to the first relationship. According to the scheme of the application, the relation between the first channel/first signal and the first SSB can be obtained, and the first information is received according to the relation and the receiving mode of the first SSB, so that the terminal equipment can more accurately receive the first information.

Description

Method and communication device for paging

Technical Field

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

Background

In a New Radio (NR), a User Equipment (UE) is in three states, i.e., a radio resource control IDLE (RRC _ IDLE), an RRC INACTIVE (RRC _ INACTIVE) and an RRC CONNECTED (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 page the UE through a paging (paging) procedure to notify the UE to establish or recover the RRC connection, and then can perform data transmission.

Since the UE does not know whether the network device really has a paging sent to the UE before receiving the paging, the UE in the RRC _ IDLE or RRC _ INACTIVE state may attempt to receive paging Downlink Control Information (DCI) at each Paging Occasion (PO) in each Paging Frame (PF), and receive a paging Physical Downlink Shared Channel (PDSCH) according to scheduling of the paging DCI. Only after the UE completely analyzes the paging PDSCH data, the UE knows whether the network device really has paging data to send to itself. If the network device does not send a page to the UE on a PO, the UE receives and parses data on the PO, which results in waste of power consumption.

In order to solve the power consumption problem of receiving paging by a terminal device in an idle state or an inactive state, first information is planned to be introduced into an NR system, where the first information is used to indicate whether paging information is transmitted in a PO, and the first information may be referred to as Paging Early Indication (PEI). The first information is sent before PO, the UE can receive the first information before PO, and whether paging DCI and paging PDSCH are received in PO or not is determined according to the indication of the first information, so that the purpose of saving power consumption is achieved.

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

Disclosure of Invention

The application provides a method and a communication device for paging, which are used for facilitating a terminal device to receive first information by defining the relation between a first channel/first signal and a first SSB.

In a first aspect, a method for paging is provided, where the method may be performed by a terminal device, or may also be performed by a chip or a circuit configured in the terminal device, and this application is not limited thereto.

The method comprises the following steps: 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 relation, 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); the first information is received using a first SSB according to the first relationship.

According to the scheme of the application, the relationship between the first channel/first signal and the first SSB can be defined, and the first information is received according to the relationship and the receiving mode of the first SSB, so that the terminal equipment can more accurately receive the first information.

On the other hand, the terminal device may obtain whether the paging information exists in the first paging occasion according to the received first information, which is helpful for reducing power consumption of the terminal device.

With reference to the first aspect, in certain implementations of the first aspect, the first relationship is: the first channel/first signal and the first SSB are transmitted on the same port, or QCL relationship.

That is, the first relationship is a spatial association or channel relationship of the first channel/first signal and the first SSB.

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

With reference to the first aspect, in certain implementations of the first aspect, receiving first information using a first SSB according to a first relationship includes: determining a first hypothetical relationship based on the first relationship, the first hypothetical relationship being that the first channel/first signal and the first SSB have the same transmission channel; a first channel/first signal is received according to a first hypothesized relationship and a first SSB.

With reference to the first aspect, in certain implementations of the first aspect, the first relationship is a quasi co-located QCL relationship, the QCL relationship including type a.

With reference to the first aspect, in certain implementations of the first aspect, receiving first information using a first SSB according to a first relationship includes: determining a second assumed relationship according to the first relationship, wherein the second assumed relationship is that the Doppler frequency shift, the Doppler spread, the average time delay and the time delay spread of the first channel/first signal and the first SSB are the same; the first channel/first signal is received according to the second hypothesized relationship and the first SSB.

With reference to the first aspect, in certain implementations of the first aspect, the first relationship is a QCL relationship, the QCL relationship including type C.

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

With reference to the first aspect, in certain implementations of the first aspect, the QCL relationship further includes type D.

With reference to the first aspect, in certain implementations of the first aspect, receiving first information using a first SSB according to a first relationship includes: determining a fourth hypothetical relationship based on the first relationship, the fourth hypothetical relationship being that the spatial reception parameters of the first channel/first signal and the first SSB are the same; the first channel/first signal is received according to a fourth hypothetical relationship and the first SSB.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: a first channel/first signal is received from a network device.

With reference to the first aspect, in certain implementations of the first aspect, the method further includes: the first information is parsed from the first channel/first signal.

With reference to the first aspect, in certain implementations of the first aspect, the first channel is used to indicate first information, and includes: the first channel is a Physical Downlink Control Channel (PDCCH), the PDCCH carries Downlink Control Information (DCI), and the DCI is used for indicating the first information.

With reference to the first aspect, in certain implementations of the first aspect, the first signal is used to indicate first information, and includes: the first information is indicated by whether the first signal is transmitted.

With reference to the first aspect, in certain implementations 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 certain implementations of the first aspect, the method further includes: time-frequency synchronization is performed using the first channel/first signal.

In a second aspect, a method for communication is provided, where the method may be performed by a network device, or may also be performed by a chip or a circuit configured in the network device, and this application is not limited in this respect.

The method comprises the following steps: sending first indication information to the terminal device, wherein the first indication information is used for indicating that a first channel/a first signal and a first synchronous signal block SSB have a first relation, the first channel/the 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 sending the first information to the terminal equipment according to the first relation and the sending mode of the first SSB.

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

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

With reference to the second aspect, in certain implementations of the second aspect, the first relationship is a quasi co-located QCL relationship, the QCL relationship including type a or type C.

With reference to the second aspect, in certain implementations 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 first information, and includes: the first channel is a Physical Downlink Control Channel (PDCCH), the PDCCH carries Downlink Control Information (DCI), and the DCI is used for indicating the first information.

With reference to the second aspect, in some implementations of the second aspect, the first signal is used to indicate first information, including: the first information is indicated by whether the first signal is transmitted.

With reference to the second aspect, in certain implementations of the second aspect, 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.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: the first channel/first signal is transmitted to the terminal device.

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

The device includes: a processing unit, configured to obtain first indication information, where the first indication information is used to indicate that a first channel/first signal and a first synchronization signal block SSB have a first relationship, and the first channel/first signal is used to indicate first information, where the first information includes whether paging information is transmitted in a first paging occasion PO. And the transceiving unit is used for receiving the first information by using the first SSB according to the first relation.

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

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

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: determining a first hypothetical relationship based on the first relationship, the first hypothetical relationship being that the first channel/first signal and the first SSB have the same transmission channel; the transceiver unit is specifically configured to: a first channel/first signal is received according to a first hypothesized relationship and a first SSB.

With reference to the third aspect, in certain implementations of the third aspect, the first relationship is a quasi co-located QCL relationship, and the QCL relationship includes type a.

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: determining a second assumed relationship according to the first relationship, wherein the second assumed relationship is that the Doppler frequency shift, the Doppler spread, the average time delay and the time delay spread of the first channel/first signal and the first SSB are the same; the transceiver unit is specifically configured to: the first channel/first signal is received according to the second hypothesized relationship and the first SSB.

With reference to the third aspect, in certain implementations of the third aspect, the first relationship is a QCL relationship, the QCL relationship including type C.

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: determining a third assumed relationship according to the first relationship, wherein the third assumed relationship is that the Doppler frequency shift and the average time delay of the first channel/first signal and the first SSB are the same; the transceiver unit is specifically configured to: the first channel/first signal is received according to the third hypothetical relationship and the first SSB.

With reference to the third aspect, in certain implementations of the third aspect, the QCL relationship further includes type D.

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: determining a fourth hypothetical relationship based on the first relationship, the fourth hypothetical relationship being that the spatial reception parameters of the first channel/first signal and the first SSB are the same; the transceiver unit is specifically configured to: the first channel/first signal is received according to a fourth hypothetical relationship and the first SSB.

With reference to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to: a first channel/first signal is received from a network device.

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: the first information is parsed from 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, where the DCI is used to indicate the first information.

With reference to the third aspect, in certain implementations of the third aspect, the first information is indicated by whether the first signal is transmitted.

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

With reference to the third aspect, in certain implementations of the third aspect, the processing unit is further configured to: time-frequency synchronization is performed using the first channel/first signal.

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

The device includes: the receiving and sending unit sends first indication information to the terminal device, where the first indication information is used to indicate that a first channel/first signal and a first synchronization signal block SSB have a first relationship, the first channel/first signal is used to indicate first information, and the first information includes whether paging information is transmitted in a first paging occasion PO. The transceiver unit is further configured to: and sending the first information to the terminal equipment according to the first relation and the sending mode of the first SSB.

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

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

With reference to the fourth aspect, in certain implementations of the fourth aspect, the first relationship is a quasi co-located QCL relationship, the QCL relationship including type a or type C.

With reference to the fourth aspect, in certain implementations 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, where the DCI is used to indicate the first information.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first information is indicated by whether the first signal is transmitted.

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

With reference to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to: the first channel/first signal is transmitted to the terminal device.

In a fifth aspect, a communication apparatus is provided, including: at least one processor coupled with at least one memory, the at least one processor to execute a computer program or instructions stored in the at least one memory to cause the communication apparatus to perform the method of any of the first to second aspects or any possible implementation manner of the first to second aspects.

A sixth aspect provides a computer-readable storage medium having stored thereon a computer program or instructions which, when run on a computer, cause the computer to perform the method of any of the first to second aspects or any of the possible implementations of the first to second aspects described above.

In a seventh aspect, a chip system is provided, including: a processor for executing a computer program or instructions in a memory to implement the method of any one of the first to second aspects described above or any one of the possible implementations of the first to second aspects.

In an eighth aspect, there is provided a computer program product comprising a computer program or instructions which, when executed, causes the method of any one of the first to second aspects or any one of the possible implementations of the first to second aspects to be performed.

Drawings

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

Fig. 2 is a schematic diagram of content carried by an SSB symbol according to an embodiment of the present disclosure.

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

Fig. 4 is a schematic flow chart of a method for paging according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a transmission timing of a first signal according to an embodiment of the present disclosure.

Fig. 6 is a schematic diagram of a transmission timing of a first channel/first signal according to an embodiment of the present disclosure.

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

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

Fig. 9 is a block diagram of a communication device according to an embodiment of the present application.

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5 th generation,5 g) mobile communication system, or a New Radio (NR). The 5G mobile communication system may be a non-independent Network (NSA) or an independent network (SA), among others.

The technical scheme provided by the application can also be applied to Machine Type Communication (MTC), long term evolution-machine (LTE-M) communication between machines, device-to-device (D2D) network, machine-to-machine (M2M) network, internet of things (IoT) network, or other networks. The IoT network may comprise, for example, a car networking network. The communication modes in the car networking system are collectively referred to as car-to-other devices (V2X, X may represent anything), for example, the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, and the like.

The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation (6G) mobile communication system and the like. This is not a limitation of the present application.

In the embodiments of the present application, a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment.

The terminal device may be a device providing voice/data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. Currently, some examples of terminals may be: mobile phone (mobile phone), tablet computer (pad), computer with wireless transceiving function (such as notebook computer, palm computer, etc.), mobile Internet Device (MID), virtual Reality (VR) device, augmented Reality (AR) device, wireless terminal in industrial control (industrial control), wireless terminal in self driving (self driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in transportation safety (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home) (for example, home appliances such as televisions, smart boxes, game consoles), cellular phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), handheld devices having wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in a 5G network or terminal devices in a Public Land Mobile Network (PLMN) for future evolution, and the like.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application function, and need to be matched with other equipment such as a smart phone for use, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Furthermore, the terminal device may also be a terminal device in an Internet of things (IoT) system. The IoT is an important component of future information technology development, and is mainly technically characterized in that articles are connected with a network through a communication technology, so that an intelligent network with man-machine interconnection and object interconnection is realized. The IoT technology can achieve massive connection, deep coverage, and power saving of the terminal through, for example, narrowband (NB) technology.

In this embodiment, the terminal device may also be a vehicle or a whole vehicle, and may implement communication through a vehicle networking, or may also be a component located in the vehicle (for example, placed in the vehicle or installed in the vehicle), that is, an on-board unit (OBU), an on-board module, or an on-board unit (OBU).

In addition, the terminal equipment can also comprise sensors such as an intelligent printer, a train detector, a gas station and the like, and the main functions of the terminal equipment comprise data collection (part of the terminal equipment), control information and downlink data receiving of the network equipment, electromagnetic wave sending and uplink data transmission to the network equipment.

In the embodiment of the present application, the network device may be any device having a wireless transceiving function. Such devices include, but are not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WiFi) system, a wireless relay Node, a wireless backhaul Node, a Transmission Point (TP), or a transmission point (TRP), and may also be 5G, such as NR, a gbb in a system, or a transmission point (TRP or TP), one or a group (including multiple antenna panels) of a base station in a 5G system, and may also be a panel of a radio network controller (eNB), a Radio Network Controller (RNC), a base station B (NB), a base transceiver station (BBU) in a system, or a radio relay Node (BBU) in a system, or a radio network controller (BBU) in a system.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or transmitted by the DU and the CU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

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

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in 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. Network device 110 and terminal device 120 may communicate over a wireless link. Each communication device, such as network device 110 or 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 transmit antenna for transmitting signals and at least one receive antenna for receiving signals. Therefore, communication between the communication devices in the communication system, and between the network device 110 and the terminal device 120, may be performed by using the multi-antenna technology.

It should be understood that fig. 1 is a simplified schematic diagram of an example for ease of understanding only, and that other network devices or other terminal devices may also be included in the communication system, 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 by the embodiment of the present application is not limited to communication between a network device and a terminal device, and may also be applied to communication between a terminal device and a terminal device, and the like. The application does not limit the application scenario of the method. In the embodiments shown below, the method provided by 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 only for convenience of understanding and description.

It should also be understood that the embodiments shown below do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as it is possible to communicate with the method provided by the embodiments of the present application by running a program recorded with codes of the method provided by the embodiments of the present application, for example. The execution main body of the method provided by the embodiment of the application can be terminal equipment or network equipment, or a functional module which can call a program and execute the program in the terminal equipment or the network equipment. For brevity, the following description will be given by taking the execution subject as a single entity. However, the execution subject of the method provided by the embodiment of the present application may be a plurality of entities, and the entities may be distributed at different locations. For example, the processing performed by the network device may be performed by at least one of a Central Unit (CU), a Distributed Unit (DU), and a Remote Unit (RU), respectively.

For the convenience of understanding the embodiments of the present application, the terms referred to in the embodiments of the present application will be briefly described below.

1. Quasi-co-location (QCL) relationships

The QCL relationship may also be referred to as QCL hypothesis, and is used to indicate a spatial relationship between two reference signals or reference signals and channels, where the target reference signal may be a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), or a transmission channel such as a Physical Downlink Shared Channel (PDSCH), a Physical Downlink Control Channel (PDCCH), a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), and the referenced reference signal or source reference signal may be a CSI-RS, a Tracking Reference Signal (TRS), a synchronization signal/broadcast channel block (SSB), and the like.

It is to be understood that the characteristic parameters of two reference signals or channels satisfying the QCL relationship are the same, so that the characteristic parameter of the target reference signal can be inferred based on the source reference signal resource index. Wherein the characteristic parameters comprise one or more of the following parameters: average channel gain, average channel delay (average delay), delay spread (delay spread), doppler spread (doppler spread), doppler shift (doppler shift), spatial Rx parameters (spatial Rx parameters), and the like. The characteristic parameters describe channel characteristics between antenna ports of the source reference signal and the target reference signal, and are helpful for the terminal device to complete a receiving processing procedure at a 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 of the network device side for the terminal device side, as an optional implementation manner, the network device side may indicate that one or more of a demodulation reference signal of a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH) and a plurality of reference signal resources already configured to the terminal device satisfy a QCL relationship, for example, the reference signal may be a CSI-RS or an SSB.

Four types of QCLs are defined in the existing standard, and the base station may configure one or more types of QCLs 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 time delay and time delay spread;

type B (type B): doppler shift, doppler spread;

type C (type C): doppler shift, average time delay;

type D (type D): the space receives the parameters.

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

2. Synchronization Signal Block (SSB)

The SSB may also be referred to as a Physical Broadcast Channel (PBCH) block (block), and is composed of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a broadcast channel (PBCH), and occupies 4 symbols in a time domain.

Fig. 2 is a schematic diagram of content included in an SSB symbol provided in an embodiment of the present application. The SSB has a bandwidth of 20 Resource Blocks (RBs) and includes 240 subcarriers. The first symbol carries the PSS, which includes 127 subcarriers, that is, the length of the PSS sequence 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 broadcast channels (PBCH), which mainly carry system information; the third symbol carries PBCH and SSS simultaneously, where the SSS sequence length is 127 as with PSS, and both occupy 127 Resource Elements (REs) in the middle of the SSB frequency domain. The SSS uses 48 REs on both sides to transmit PBCH, with 8 and 9 RE intervals between SSS and PBCH.

3. Synchronization signal burst (SS burst)

The network device sends the SSBs according to the SSB time domain multiplexing pattern in the preconfigured SS burst, which may be as shown in fig. 3. Fig. 3 is a schematic diagram of an SSB time-domain multiplexing pattern provided in an embodiment of the present application.

The SSBs in the NR network generally use multiple beams for transmission, and the transmission of the SSBs exists in one transmission period, for example, the transmission period of the SSBs may be 20ms, and in each SSB period, the network device may transmit the SSBs of multiple different beams in a time division manner within one short time length. This short duration is called an SS burst. In the NR system, SSBs of different beams are multiplexed according to different time domain patterns according to different operating frequency bands. For example, in case a, the subcarrier spacing is 15kHz, the length of one SS burst is 2ms, that is, the network device can transmit SSBs in 2 time slots with the length of 1ms, SSBs in 4 different directions, that is, SSB0, SSB1, SSB2 and SSB3 in the figure, can be transmitted in the SS burst, and the padding part in the figure is the symbol position where the SSBs can be transmitted. It should be understood that in one SS burst, the network device does not necessarily need to transmit all 4-way SSBs, and the network device may configure the number of SSBs actually transmitted and the symbol positions used by the transmitting SSBs through system messages. For example, the network device may send only SSB0 and SSB1, or only SSB1 and SSB3.

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

The SSB of each beam direction occupies 4 OFDM symbols on the time domain resource, and each OFDM symbol may include the content as shown in fig. 2.

4. Paging and paging messages

In NR, the UE is in three states, i.e., a radio resource control IDLE (RRC _ IDLE) state, an RRC INACTIVE (RRC _ INACTIVE) state, and an RRC CONNECTED (RRC _ CONNECTED) state. There is no RRC connection between the UE in the idle state and the network, and for the UE in the inactive state, although an RRC connection is established with the network, the connection is suspended. When the network has downlink data to be sent to the UE in an idle or inactive state, the network needs to page the UE through a paging (paging) procedure to notify the UE to establish or resume the RRC connection, and then can perform data transmission. That is, paging is network initiated. In NR, paging may be initiated by a core network, referred to as core network paging (CN paging), or by a Radio Access Network (RAN), referred to as RAN paging.

Paging is also called a paging message (paging message) and is used for triggering the terminal device to establish RRC connection, or notifying the terminal device of system information update, and sending an earthquake and tsunami alarm. The content of the paging message is sent to the terminal device through a Physical Downlink Shared Channel (PDSCH), and the PDSCH is scheduled through a PDCCH scrambled by a paging radio network temporary identifier (P-RNTI).

The UE in idle or inactive state supports receiving paging messages in a Discontinuous Reception (DRX) manner to reduce power consumption, which is also referred to as paging DRX, and a discontinuous reception cycle (DRX cycle) configured by a network device, wherein the DRX cycle is also referred to as a paging cycle. With DRX, a UE in an idle state or an inactive state may only "wake up" to receive paging messages in a predefined time period, and may remain in a "sleep" state and stop receiving paging at other times, which reduces power consumption and increases the battery life of the UE.

For Discontinuous Reception (DRX), an idle or inactive UE only attempts to receive a PDCCH scrambled by a paging radio network temporary identifier (P-RNTI) at a certain Paging Occasion (PO) in each paging cycle. In the NR system, a PO is a Monitoring Occasion (MO) of a set of Physical Downlink Control Channels (PDCCHs). One PO may contain a plurality of time slices (time slots), for example, a time slice may be a subframe or an Orthogonal Frequency Division Multiplexing (OFDM) symbol. The network device may transmit Downlink Control Information (DCI) for scheduling the paging message in the PO.

5. Paging Frame (PF) and Paging Occasion (PO)

The specific time when the UE receives the page is determined by a Paging Frame (PF) and a PO. PF indicates a frame in which a page is transmitted, i.e., UEs in idle and inactive states will attempt to receive a page only in the PF, and PO indicates an opportunity within one PF to attempt to receive a page. Because the paging message is actually scheduled by using the DCI scrambled by the P-RNTI, one PO actually corresponds to the detection time of the S DCI scrambled by the P-RNTI, and S can be obtained by the number of the system messages.

PF is determined as follows in equation (1):

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

where SFN denotes a System Frame Number (SFN), PF _ offset is a frame offset of PF, and T denotes a period of DRX or a paging period, which is a time unit, that is, a UE may have one or more opportunities to attempt to receive a page within a time T. N = min (T, nB), nB representing the number of PFs within one DRX cycle or paging cycle. Further, the value of SFN ranges from 0 to 1023. The value range of T is 32,64,128,256, and the unit is a wireless frame. The value of nB is 4T,2T, T/2,T/4,T/8,T/16, T/32, and the unit is a wireless frame. The UE _ ID is a UE identifier, which may be the 5th generation system architecture evolution-temporal mobile station identifier (5G-S-TMSI) mod 1024 or a full inactive-RNTI (full I-RNTI).

When an SFN satisfies the above formula, the SFN is considered a PF. The UE will attempt to receive a page within the PF. For each PF, there may be a plurality of POs, and the parameter Ns is used in NR to represent the number of POs corresponding to one PF. Note that the gNB does 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.

In addition, a PF may contain one or more POs or starting points of the POs. When monitoring PO, the terminal equipment firstly determines the position of the PF and then determines the position of the PO related to the PF. It should be noted that a PO associated with a PF may start from within the PF or may start after the PF. The UE does not necessarily need to read all POs in one PF, and the UE may determine the PO location that the UE needs to monitor according to the paging configuration parameter and the UE _ ID.

6. Paging Early Indication (PEI)

Because the UE cannot determine whether the network device really has a paging sent to the UE before receiving the paging, the UE wakes up at each PO, detects the paging DCI, and then receives the paging PDSCH according to the scheduling of the paging DCI. Only after the UE completely analyzes the paging PDSCH data, the UE knows whether the network device really has the paging data sent to the UE. In an actual communication network, the probability that a network device actually sends a page to one UE at each PO is very low, for example, about 10%, in this case, the UE has useless power consumption overhead for page reception at about 90% of other POs, which is not favorable for power consumption saving.

In order to solve the power consumption problem of receiving paging by a terminal device in an idle state or an inactive state, first information is introduced into an NR system, where the first information is used to indicate whether paging information is transmitted in a PO, and the first information may be referred to as Paging Early Indication (PEI). PEI is exemplified herein. PEI is sent before the PO and after the burst of SSs before the PO. Generally, PEI approaches to SS burst before PO, and UE may perform time frequency tracking (time frequency tracking) and Automatic Gain Control (AGC) estimation by using SSB before PO, receive PEI after receiving the relevant SS burst, and determine whether to receive paging DCI and paging PDSCH in PO according to an indication of PEI. By the mode, the terminal can know whether the paging DCI and the paging PDSCH need to be received earlier, and can enter the dormant state earlier under the condition that the paging DCI and the paging PDSCH do not need to be received, so that the purpose of saving power consumption is achieved.

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

In view of the foregoing, the present application provides a method and a communication apparatus for paging, which enable a terminal device to receive first information according to a first SSB by defining a relationship between the first channel/first signal and the first SSB.

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

Fig. 4 is a schematic flow chart of a method for paging according to an embodiment of the present application. The method 400 shown in fig. 4 may be performed by the terminal device and the network device shown in fig. 1.

S410, the terminal device obtains first indication information, where the first indication information is used to indicate that a first channel/first signal and a first synchronization signal block SSB have a first relationship, and the first channel/first signal is used to indicate first information, where the first information includes whether paging information is transmitted in a first paging occasion PO.

In the present application, "first channel/first signal" means a first channel or a first signal, and may be the first signal or the first channel. "the first channel/first signal has a first relationship with the first synchronization signal block SSB" means that the first channel and the first synchronization signal block SSB have a first relationship or the first signal and the first synchronization signal block SSB have a first relationship. The "first channel/first signal is used to indicate the first information" means that the first information is indicated by the first channel or the first information is indicated by the first signal. The first information is PEI, and the first information includes whether paging information is transmitted in a first paging occasion PO.

Whether or not paging information is transmitted in the first paging occasion is understood to be whether or not paging information is transmitted to the terminal device in the first paging occasion, or whether or not paging is present in the first paging occasion.

Optionally, the configuration information of the first information may be carried in a configuration signaling for configuring the paging information, for example, the configuration information includes a listening opportunity 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, i.e., first indication information. The obtaining mode 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.

The first relationship may be that the first channel/first signal and the first SSB are transmitted on the same port, or the first relationship is a QCL relationship. That is, the first relationship is a spatial association or channel relationship of the first channel/first signal and the first SSB.

The first SSB is an SSB associated with the first channel/first signal. Specifically, the terminal may acquire, through the configuration information, which SSB a first channel/first signal transmitted at a certain receiver opportunity/listening opportunity (monitoring opportunity) is associated with. The associated SSB is the first SSB. As an example, the network may configure a plurality of listening occasions of the first channel/first signal after a certain SS burst, which are associated in sequential correspondence with SSBs in the SS burst.

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

The network device may transmit a first channel/first signal to the terminal device prior to the first PO, the first channel/first signal indicating the first information. The terminal device may determine a spatial association relationship between the first channel/first signal and the first SSB according to the acquired first indication information, and then receive the first information using the first SSB.

According to the scheme of the application, the first relation between the first channel/first signal and the first SSB can be defined, and the first information is received according to the first relation and the receiving mode of the first SSB, so that the terminal equipment can more accurately receive the first information.

Optionally, the obtaining, by the terminal device, the first indication information includes: the terminal device receives the first indication information from the network device, in this case, before S420, the method 400 further includes: s401, the network equipment sends first indication information to the terminal equipment. That is, the network device indicates to the terminal device the relationship of the first channel/first signal and the first SSB before sending the first information.

As an example, the network device may carry the first indication information in System Information (SI), e.g., a System Information Block (SIB) or a Master Information Block (MIB). Therefore, when the terminal device initially accesses, the terminal device searches for the SSB, the searched SSB includes the first SSB, and parses the PBCH-carried MIB information in the SSB, where 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 the searched SSBs; as another example, the first SSB is a historically optimal SSB. Or, the terminal device determines the frequency position, bandwidth, subcarrier spacing, and the like in a control resource set (CORESET) #0 according to the MIB information, then monitors the PDCCH that schedules SIB1 on CORESET #0, and further receives the PDSCH that carries SIB1, and obtains SIB1 information, where the SIB1 information includes the first indication information.

Optionally, the method 400 further comprises: s402, the network device sends the first SSB to the terminal device, and the terminal device receives the first SSB. The terminal device may obtain a receiving mode of the first SSB when receiving the first SSB, and the receiving mode of the first SSB may be used to receive the first information.

Specifically, the network device may send the first SSB according to a preconfigured time domain multiplexing pattern of the SS burst, where the first SSB may be any one SSB in the SS burst, and the manner in which the terminal device receives the first SSB may be that the terminal receives all SSBs in the SS burst and determines that the signal strength or the signal quality of a certain SSB is the best, and then the terminal takes the corresponding SSB in the current SS burst or a subsequent SS burst as the first SSB. As an example, the terminal always receives SSBs in all directions in a certain SS burst and records corresponding channel parameters, and when receiving the first information, the terminal always takes the corresponding SSB as the first SSB and receives the first information according to the channel parameters of the corresponding SSB.

In one implementation, the first relationship is that the first channel/first signal and the first SSB are transmitted on the same port. For example, if the time of transmission of the first channel/first signal and the first SSB is located in a first time unit, the first indication information indicates that the first channel/first signal and the first SSB are transmitted in the same port (port), and the first time unit may be 1 slot (slot), that is, the first channel/first signal and the first SSB are transmitted in the same slot, or the first time unit may be 2 slots, that is, the first channel/first signal and the first SSB are transmitted in adjacent slots, as an example. When the first relationship is that the first channel/first signal and the first SSB are transmitted through the same port, the terminal device may determine a first assumed relationship according to the first relationship, where the first assumed relationship is that the first channel/first signal and the first SSB have the same transmission channel, and further, the terminal device receives the first channel/first signal according to the first assumed relationship and the first SSB.

In one implementation, the first relationship is a QCL relationship, and in particular, the QCL relationship includes type a (QCL type a). When the first relationship is QCL type a, the terminal device may determine a second assumed relationship according to the first relationship, where the second assumed relationship is that the doppler shift, doppler spread, average delay, and delay spread of the first channel/first signal and the first SSB are the same, and further, the terminal device may receive the first channel/first signal according to the second assumed relationship and the first SSB.

In one implementation, the first relationship is a QCL relationship, in particular, the QCL relationship includes type C (QCL type C). When the first relationship is QCL type C, the terminal device may determine a third assumed relationship according to the first relationship, where the third assumed relationship is that the doppler shift and the average delay of the first channel/first signal and the first SSB are the same, and further, the terminal device may receive the first channel/first signal according to the third assumed relationship and the first SSB.

In one implementation, the first relationship is a QCL relationship, in particular, the QCL relationship includes type D (QCL type D). When the first relationship is QCL type D, the terminal device may determine a fourth assumed relationship according to the first relationship, where the fourth assumed relationship is that the spatial reception parameters of the first channel/first signal and the first SSB are the same, and further, the terminal device may receive the first channel/first signal 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 may include both types, 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 include only any one of type a, type C, and type D.

It should also be understood that the manner in which the network device transmits the first channel/first signal is also in a first relationship to the transmission of the first SSB. That is, the network device will adjust the transmission parameter to satisfy the determined first relationship when transmitting the first channel/first signal with reference to the transmission mode of the first SSB. The first relationship may be determined by the network device, that is, the network device may send first indication information to the terminal device to indicate the first relationship. The first relationship may also be defined by a protocol, and in this case, for the terminal device and the network device, the local configuration information or the preset information may be read, so as to obtain the first relationship.

Optionally, the receiving, by the terminal device, the first information specifically includes: the terminal device analyzes the first information according to the first channel/first signal. That is, after receiving the first channel/first signal, the terminal device analyzes to obtain whether the paging information is transmitted in the first PO. When the first channel/first signal indicates that the paging information is transmitted in the first paging occasion PO, the terminal device may wake up at the first PO, detect the paging DCI, and receive the paging PDSCH according to scheduling of the paging DCI. For example, the terminal device detects and receives the paging DCI on a type1-common search space (type 1-common search space CSS) as defined in 3GPP R-16, and further receives the paging PDSCH. When the first channel/first signal indicates that the paging information is not transmitted in the first paging occasion PO, the terminal device may continue to maintain the sleep state after acquiring the first information, thereby saving power consumption.

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

In one implementation, the first information is indicated by the first signal, and specifically, the first information may be indicated by whether the first signal is sent or not, for example, when the terminal device receives the first signal, it is considered that the first PO transmits the paging information, and when the terminal device does not receive the first signal, it is considered that the first PO does not transmit the paging information.

Alternatively, 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 a time-frequency pattern (pattern), a sequence generation manner, a resource configuration signaling, and the like used by the signal carrying the paging information is the same as or similar to the SSS, the TRS, or the CSI-RS, and in this case, the first signal may also be understood as PEI (SSS based PEI), PEI (TRS based PEI), or PEI (CSI-RS based PEI) based on the SSS.

As a possible implementation, when the first information is indicated by the first signal, the first signal may be inserted into the SS burst. The network device generally transmits the SSB to the terminal device through the SS burst, and inserts a first signal into the SS burst when transmitting the SS burst, for example, the first signal may be inserted into the SS burst by multiplexing a sequence of SSs or a single-symbol PDCCH.

Fig. 5 is a schematic diagram of a transmission timing of a first signal according to an embodiment of the present application, where, as shown in fig. 5, the first signal is represented by PEI, and the PEI multiplexes a sequence of SSS or a single-symbol PDCCH, inserts the SSS sequence into an SS burst, and transmits the SSS sequence and the SSB together. The first SSB may be an SSB with the highest received signal strength or the best signal quality, the network device may indicate a first relationship between the first SSB and the corresponding PEI to the terminal device, and after receiving the first SSB, the terminal device receives the PEI according to the first relationship.

As a possible implementation, the network device may also send the first channel/first signal after sending the second SS burst prior to the page.

Fig. 6 is a schematic diagram of a transmission timing of a first channel/first signal provided in an embodiment of the present application, and as shown in fig. 6, the first channel/first signal is denoted by PEI. The network equipment sends the SSB to the terminal equipment through the SS burst, wherein the sending period of the SS burst is 20ms, and the duration of each time is 2ms. The network device may send the PEI after sending the second SS burst (i.e., SS burst # 1) before paging, and the terminal device first receives the SS burst #1 before the PEI, and performs time-frequency synchronization according to the SSB in the SS burst #1, where the result of the time-frequency synchronization is relatively coarse but is sufficient for the terminal device to receive the PEI. If the PEI indicates that paging exists in the PO, the terminal equipment can receive the SS burst #2, further perform time-frequency synchronization and time-frequency offset correction according to the SS burst #2, and then complete paging reception. Optionally, after receiving the page, the terminal device may further operate based on the configuration of the network device, for example, if the network device configures an SSB-based measurement timing configuration (SMTC) window (window) to the terminal device, the terminal device may perform an inter-frequency measurement within the SMTC window after receiving the page, and enter a deep sleep (deep sleep) state after the measurement is completed, as shown in case 1 in fig. 6. If the PEI indicates that there is no paging in the PO, the terminal device may 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 (deep sleep) state without receiving paging DCI and/or paging PDSCH in the PO, as shown in case 2 in fig. 6. Optionally, if the network device is not configured with the procedures such as measurement, the terminal device may also directly enter the deep sleep state after receiving the PEI. Through the PEI information mode, whether paging exists or not is indicated in advance, and power consumption of the terminal equipment can be saved.

It should be noted that, in fig. 6, the SS burst #1 includes one or more SSBs, the network device may indicate to the terminal device that the SSBs in the SS burst and different listening occasions of the first channel/first signal correspond in sequence, where a certain SSB and the first channel/first signal on a certain listening occasion have a first relationship, for example, SSB #0, and after receiving the SSB #0, the terminal device receives the first channel or the first signal on the listening occasion with number 0 according to the first relationship to obtain the first information.

Optionally, the method further comprises: s430, the terminal device uses the first channel/first signal for time-frequency synchronization.

In order to ensure that the terminal device in the idle state or the 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 time-domain and frequency-domain deviations between the terminal device and the network device, so that the terminal device does not affect its reception of the first information due to residual frequency offset. Meanwhile, the terminal equipment can also adjust the gain parameter of the UE receiver by receiving the SSB for AGC estimation. In the application, the terminal may further perform time-frequency synchronization by using the first channel/first signal after receiving the first channel/first signal and acquiring the first information. Compared with the prior art in which time-frequency synchronization is performed only through the SSB, the time-frequency synchronization can be performed according to the first channel/the first signal, that is, resources used by the time-frequency synchronization are increased, and the accuracy of the time-frequency synchronization can be improved.

The technical solution of the method for paging according to the embodiment of the present application is described in detail above with reference to fig. 1 to 6, and a communication apparatus according to the embodiment of the present application is described below with reference to fig. 7 to 9.

Fig. 7 is a schematic block diagram of a communication device according to an embodiment of the present application. As shown in fig. 7, the apparatus 700 may be a terminal device, or may be a component (e.g., a unit, a module, a chip, or a system-on-a-chip) configured in the terminal device, 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 a first channel/first signal and a first synchronization signal block SSB have a first relationship, and the first channel/first signal is used to indicate first information, where the first information includes whether paging information is transmitted in a 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 receive the first information using the first SSB according to the first relationship.

It should be appreciated that the apparatus 700 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an ASIC, an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, it may be understood by those skilled in the art that the apparatus 700 may be embodied as a terminal device in the foregoing method 400 embodiment, and the apparatus 700 may be configured to execute each procedure and/or step corresponding to the terminal device in the foregoing method 400 embodiment, and for avoiding repetition, details are not described here again.

It should also be understood that, in an implementation manner, the transceiving unit 720 may include a receiving unit 721 and a transmitting unit 722, where the receiving unit 721 is configured to perform a receiving function in the transceiving unit 720, for example, receive the first information from the network device, and the transmitting unit 722 is configured to perform a transmitting function in the transceiving unit 720.

Fig. 8 is a schematic block diagram of a communication device according to an embodiment of the present application. As shown in fig. 8, the apparatus 800 may be a network device, or may be a component (e.g., a unit, a module, a chip, or a chip system) configured in a network device, where the apparatus 800 includes: a transceiving 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: a transceiver unit 810, configured to send first indication information and first information to a terminal device, where the first indication information is used to indicate that a first channel/first signal and a first synchronization signal block SSB have a first relationship, the first channel/first signal is used to indicate first information, and the first information includes whether paging information is transmitted in a first paging occasion PO.

It should be understood that the transceiver unit 810 may also perform any other steps, operations, and/or functions implemented by the network device in the method 400, respectively, and the specific processes of each unit for performing the corresponding steps are described in detail in the above method embodiments, which are not described herein again for brevity.

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

It should be appreciated that the apparatus 800 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an ASIC, an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, it may be understood by those skilled in the art that the apparatus 800 may be embodied as a network device in the foregoing method 400 embodiment, and the apparatus 800 may be configured to perform each procedure and/or step corresponding to the network device in the foregoing method 400 embodiment, which is not described herein again to avoid repetition.

It should also be understood that, in an implementation manner, the transceiver unit 810 may include a receiving unit 811 and a transmitting unit 812, where the receiving unit 811 is configured to perform a receiving function in the transceiver unit 810, and the transmitting unit 812 is configured to perform a transmitting function in the transceiver unit 810, for example, transmitting the first information to the terminal device.

Fig. 9 is a block diagram of a communication device 900 according to an embodiment of the present application. As shown in fig. 9, the apparatus 900 includes: a processor 910, a memory 920, and a transceiver 930. The processor 910 is coupled to the memory 920 for executing instructions stored in the memory 920 to control the transceiver 930 to transmit and/or receive signals.

It will be appreciated that the processor 910 and the memory 920 can be combined into a single processing device, and that the processor 910 can be configured to execute the program code stored in the memory 920 to implement the functions described above. In particular implementations, the memory 920 may be integrated with the processor 910 or may be separate from the processor 910. It is to be understood that the processor 910 may also correspond to various processing units in the preceding communication device, and the transceiver 930 may correspond to various receiving units and transmitting units in the preceding communication device.

It is also understood that the transceiver 930 may include a receiver (or, alternatively referred to as a receiver) and a transmitter (or, alternatively referred to as a transmitter). The transceiver may further include an antenna, and the number of antennas may be one or more. The transceiver may also be a communication interface or interface circuit.

Specifically, the communication apparatus 900 may correspond to a terminal device in the method 400 according to the embodiment of the present application, or a network device in the method 400. It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

When the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit. The transceiving unit can 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 one possible design, the apparatus 900 may be replaced with a chip apparatus, such as a communication chip usable in an apparatus to implement the relevant functions of the processor 910 in the apparatus. The chip device can be a field programmable gate array, a special integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit and a microcontroller for realizing related functions, and can also adopt a programmable controller or other integrated chips. The chip may optionally include one or more memories for storing program code that, when executed, causes the processor to implement corresponding functions.

Alternatively, the memory and the storage referred to in the above embodiments may be physically separate units, or the memory and the processor may be integrated together.

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 a computer, the computer is enabled to implement the method in the above-described method embodiments.

According to the method provided by the embodiment of the present application, the present application provides a computer program product, which includes a computer program, when the computer program runs on a computer, the computer can execute the method in the above method embodiment.

According to the method provided by 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, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

In the embodiments of the present application, the words "exemplary," "for example," and the like are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. 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 the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. All names of nodes and messages in this application are only names set for convenience in description, names in actual networks may be different, and it should not be understood that the application limits names of various nodes and messages, and on the contrary, any names having the same or similar functions as those of the nodes or messages used in this application are considered as methods of the present application or equivalent substitutes within the protection scope of the present application.

It should also be understood that in the present application, "when …", "if" and "if" all refer to the UE or base station doing the corresponding processing under certain objective conditions, and are not limited time, and do not require the UE or base station to perform certain judgment actions, nor do they imply other limitations.

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

The term "at least one of … …" or "at least one of … …" herein means all or any combination of listed items, e.g., "at least one of A, B and C", may mean: there are six cases of A alone, B alone, C alone, both A and B, both B and C, and both A, B and C. "at least one" herein means one or more. "plurality" means two or more.

It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically stated.

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

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for paging, the method being performed by a terminal device and comprising:

acquiring first indication information, wherein the first indication information is used for indicating that a first channel/first signal and a first Synchronous Signal Block (SSB) have a first relation, 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);

receiving the first information using the first SSB according to the first relationship.

2. The method of claim 1, wherein the first relationship is that the first channel/first signal and the first SSB are transmitted on the same port.

3. The method of claim 2, wherein receiving the first information using the first SSB according to the first relationship comprises:

determining a first hypothetical relationship based on 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/first signal is received according to a first hypothetical relationship and the first SSB.

4. The method of claim 1, wherein the first relationship is a quasi co-located QCL relationship, and wherein the QCL relationship comprises type A.

5. The method of claim 4, wherein receiving the first information using the first SSB according to the first relationship comprises:

determining a second hypothetical relationship according to the first relationship, the second hypothetical relationship being that the doppler shift, doppler spread, average delay and delay spread of the first channel/first signal and the first SSB are the same;

receiving the first channel/first signal according to the second hypothesized relationship and the first SSB.

6. The method of claim 1, wherein the first relationship is a QCL relationship, and wherein the QCL relationship includes type C.

7. The method of claim 6, wherein receiving the first information using the first SSB according to the first relationship comprises:

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

receiving the first channel/first signal according to the third hypothetical relationship and the first SSB.

8. The method of any of claims 4 to 7, wherein said QCL relations further comprise type D.

9. The method of claim 8, wherein receiving the first information using the first SSB according to the first relationship comprises:

determining a fourth hypothetical relationship according to the first relationship, the fourth hypothetical relationship being that the spatial reception parameters of the first channel/first signal and the first SSB are the same;

receiving the first channel/first signal according to the fourth hypothesized 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 of claims 1 to 10, wherein the first channel is used for indicating the first information, and comprises:

the first channel is a Physical Downlink Control Channel (PDCCH), and the PDCCH carries Downlink Control Information (DCI) which is used for indicating the first information.

12. The method according to any one of claims 1 to 10, wherein the first signal is used for indicating the first information, and comprises: indicating the first information by whether to transmit the first signal.

13. The method of claim 12, wherein the first signal multiplexes sequences of Secondary Synchronization Signal (SSS), tracking Reference Signal (TRS), or channel state information reference signal (CSI-RS).

14. The method according to any one of claims 1 to 13, further comprising:

time-frequency synchronization is performed using the first channel/first signal.

15. A method for paging, the method being performed by a network device and comprising:

sending first indication information to a terminal device, where the first indication information is used to indicate that a first channel/first signal and a first synchronization signal block SSB have a first relationship, the first channel/first signal is used to indicate first information, and the first information includes whether paging information is transmitted in a first paging occasion PO;

and sending the first information to the terminal equipment according to the first relation and the sending mode of the first SSB.

16. The method of claim 15, wherein the first relationship is that the first channel/first signal and the first SSB are transmitted on a same port.

17. The method of claim 15, wherein the first relationship is a quasi co-located QCL relationship, and wherein the QCL relationship comprises type a or type C.

18. The method of claim 3, wherein said QCL relationships further include type D.

19. The method according to any of claims 15 to 18, wherein the first channel is used for indicating the first information, and comprises:

20. The method according to any of claims 15 to 18, wherein the first signal is used to indicate the first information, comprising: indicating the first information by whether to transmit the first signal.

21. The method of 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 communications apparatus, comprising: means for performing the steps of the method of any one of claims 1 to 21.

23. A communications apparatus, comprising:

a memory for storing computer instructions;

a processor for executing computer instructions stored in the memory, causing the apparatus to perform the method of any of claims 1-21.

24. A computer-readable storage medium, characterized in that a computer program is stored thereon for performing the method of any one of claims 1 to 21.

25. A chip system, comprising: a processor for executing a stored computer program for performing the method of any one of claims 1 to 21.