WO2022213868A1

WO2022213868A1 - Method and apparatus for paging

Info

Publication number: WO2022213868A1
Application number: PCT/CN2022/084326
Authority: WO
Inventors: 周涵; 铁晓磊; 罗之虎; 杨强; 薛剑韬
Original assignee: 华为技术有限公司
Priority date: 2021-04-06
Filing date: 2022-03-31
Publication date: 2022-10-13
Also published as: CN115190567A

Abstract

The present application provides a method and apparatus for paging, capable of reducing the power consumption overhead of a terminal device. The method comprises: receiving first indication information, the first indication information being used for indicating a first synchronization signal (SS) burst, and the first SS burst being before a first paging occasion (PO); detecting first information within a first time window, the first information being used for indicating that the first PO carries a paging physical downlink control channel (PDCCH) or does not carry the paging PDCCH, the first time window being after a first slot, and the first slot being a slot where the last synchronization signal block (SSB) in the first SS burst is located. In the method, the SS burst is associated with a time domain resource of the first information, and a suitable time domain position is configured for the first information, thereby reducing the power consumption overhead of the terminal device.

Description

Method and apparatus for paging

This application claims the priority of the Chinese patent application with the application number of 202110368425.8 and the application title of "Method and Apparatus for Paging", which was filed with the China Patent Office on April 06, 2021, the entire contents of which are incorporated herein by reference. middle.

technical field

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

Background technique

In new radio (NR), user equipment (UE) is in three states, radio resource control idle state (radio resource control_idle, RRC_IDLE) state, RRC inactive (RRC_INACTIVE) state and RRC Connected state (RRC_CONNECTED) state. When the network device has downlink data that needs to be sent to the UE in the RRC_IDLE or RRC_INACTIVE state, the network device needs to page the UE 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 use the paging occasion (paging) in each paging frame (PF) occasion, PO) to try to receive the paging downlink control information (downlink control information, DCI), and receive the paging physical downlink share channel (PDSCH) according to the scheduling of the paging DCI. Only after the UE has completely parsed 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 a page to the UE on a PO, the UE will waste resources by receiving and parsing data on the PO.

In order to solve the power consumption problem of terminal equipment receiving paging in idle state or inactive state, it is planned to introduce first information in the NR system, and the first information can be called paging early indication (PEI). It is also called paging indication (PI) in the 3rd generation partnership project (3GPP). 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 the paging PDSCH in the PO according to the indication of the first information, so as to save power consumption.

However, in the practical application of the first information, if the timing for sending or receiving the first information is not appropriate, not only the power consumption of the UE cannot be reduced, but the power consumption overhead of the UE may be increased instead. Therefore, in the process of using the first information to determine whether to receive paging, how to reduce the power consumption overhead of the terminal device is still a problem to be solved.

SUMMARY OF THE INVENTION

The present application provides a method and apparatus for paging, which can reduce power consumption overhead in the process of a terminal device determining whether to receive a paging.

In a first aspect, a method for paging is provided, the method comprising: receiving first indication information, where the first indication information is used to indicate a first synchronization information SS burst, where the first SS burst is located in the first Before the paging opportunity PO; the first information is detected in the first time window, the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the first time window is located in the first time slot After that, the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

The method provided by the present application determines the timing of sending and detecting the first information by associating the time domain resources for sending the SS burst and the first information, so that the first PO does not carry the paging data sent to the terminal device. In this case, to avoid the power consumption overhead caused by the terminal device being woken up all the time, and at the same time configure an appropriate time interval for the SS burst and time window or other time domain locations for sending the first information, which can further reduce the sleep and wake-up time of the terminal device. The power consumption overhead generated in the process.

With reference to the first aspect, in some implementations of the first aspect, the detecting the first information within the first time window includes: detecting the first information on the first time domain resource within the first time window, The first time domain resource belongs to at least one preconfigured time domain resource.

With reference to the first aspect, in some implementations of the first aspect, the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or, the first time The relative position between the start position of the window and the end position of the first SS burst is preconfigured.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: receiving second indication information, where the second indication information is used to indicate an end position of the first time window or an end position of the first time window length.

With reference to the first aspect, in some implementations of the first aspect, the first time domain resource does not overlap with the time domain resource occupied by at least one of the following items: SSB, a priority higher than the first information Information, POs carrying paging data different from the beam direction of the first information.

With reference to the first aspect, in some implementations of the first aspect, detecting the first information on the first time domain resource includes: when the first time domain resource and the time domain resource occupied by the second information do not overlap , the first information is detected on the first time domain resource, and the second information is one of the following items: SSB, information with a higher priority than the first information, carrying a beam direction different from the first information beam PO for paging data.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, detecting the second information.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, detecting the first time domain resource in the second time domain resource A piece of information, the second time domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, the second time domain position and the time domain resource occupied by the second information do not overlap.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, detecting the PO corresponding to the first information.

The terminal device determines the timing of detecting the first information by associating the time domain location of the SS burst with the time domain location of the first information, which can be done in the case that the first PO does not carry the paging data sent to the terminal device , to avoid the power consumption overhead caused by the terminal device being awakened all the time, and at the same time reduce the idle time between the SS burst and the time window of the first information as much as possible, which can further reduce the power consumption of the terminal device in the process of sleeping and waking up. cost.

In a second aspect, a method for paging is provided, the method comprising: receiving first indication information, where the first indication information is used to indicate a first synchronization information SS burst, where the first SS burst is located in the first Before the paging occasion PO; first information is detected on the third time domain resource, the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located in the third time domain resource. After the starting position of an SS burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: synchronization signal block SSB, priority higher than the first Information of a message, PO carrying paging data different from the beam direction of the first message.

By associating the SS burst with the first information, the terminal device determines the timing of detecting the first information, which can prevent the terminal device from being awakened all the time when the first PO does not carry the paging data sent to the terminal device. At the same time, the first information is detected on the available time domain resources by using the time domain resources in the SS burst that do not send SSB or other information, which can further reduce the power consumption of the terminal device during the process of sleeping and waking up. overhead.

In a third aspect, a method for paging is provided, the method comprising: sending first indication information, where the first indication information is used to indicate a first synchronization information SS burst, where the first SS burst is located in the first Before the paging opportunity PO; send the first information in the first time window, the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the first time window is located in the first time slot After that, the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

With reference to the third aspect, in some implementations of the third aspect, the sending the first information within the first time window includes: sending the first information on a first time domain resource within the first time window, The first time domain resource belongs to at least one preconfigured time domain resource.

With reference to the third aspect, in some implementations of the third aspect, the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or, the first time The relative position between the start position of the window and the end position of the first SS burst is preconfigured.

With reference to the third aspect, in some implementations of the third aspect, the method further includes: sending second indication information, where the second indication information is used to indicate an end position of the first time window or an end position of the first time window length.

With reference to the third aspect, in some implementations of the third aspect, the first time domain resource does not overlap with the time domain resource occupied by at least one of the following items: SSB, a priority higher than the first information Information, POs carrying paging data different from the beam direction of the first information.

With reference to the third aspect, in some implementations of the third aspect, the sending the first information within the first time window includes: when the first time domain resources and the time domain resources occupied by the second information do not overlap, The first information is sent on the first time domain resource, and the second information is one of the following items: SSB, information with a higher priority than the first information, paging carrying a different beam direction from the first information PO of data.

With reference to the third aspect, in some implementations of the third aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, sending the second information.

With reference to the third aspect, in some implementations of the third aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, sending the first time domain resource in the second time domain resource A piece of information, the second time domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, the second time domain position and the time domain resource occupied by the second information do not overlap.

With reference to the third aspect, in some implementations of the third aspect, the method further includes: when the first time domain resource overlaps with the time domain resource occupied by the second information, sending the PO corresponding to the first information.

With reference to the third aspect, in some implementations of the third aspect, the sending the first information within the first time window includes: sending at least one first information within the first time window, the at least one first information The beam direction of the first SS burst corresponds to the beam direction of at least one SSB in the first SS burst.

When determining the time domain resource for sending the first information, the network device associates the time domain position for sending the SS burst with the time domain position for sending the first information, thereby sending the first information at the determined time domain position to avoid The power consumption overhead caused by the terminal device being always woken up in order to accept paging, and at the same time, the idle time between the SS burst and the time window of the first information can be reduced as much as possible, which can further reduce the function of the terminal device when detecting the first information. cost.

In a fourth aspect, a method for paging is provided, the method comprising: sending first indication information, where the first indication information is used to indicate a first SS burst, and the first SS burst is located before the first PO ; Send the first information on the third time domain resource, the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located in the first SS burst After the starting position, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: SSB, information with a higher priority than the first information, carrying and PO of paging data with different first information beam directions.

When determining the time domain resource for sending the first information, the network device associates the time domain position for sending the SS burst with the time domain position for sending the first information, thereby sending the first information at the determined time domain position to avoid The power consumption overhead caused by the terminal equipment being always woken up in order to accept paging, and at the same time, the time domain resources in the SS burst that do not send SSB or other information are used to detect the first information on the available time domain resources, which can further reduce the terminal equipment. Power consumption overhead when detecting the first information.

In a fifth aspect, an apparatus for paging is provided, the apparatus includes: a transceiver unit, the transceiver unit is configured to receive first indication information, the first indication information is used to indicate the first synchronization information SS burst, the The first SS burst is located before the first paging opportunity PO; the processing unit is configured to detect first information within the first time window, where the first information is used to indicate that the first PO carries paging data or Without carrying paging data, the first time window is located after the first time slot, and the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

With reference to the fifth aspect, in some implementations of the fifth aspect, the processing unit is specifically configured to detect the first information on a first time domain resource within the first time window, where the first time domain resource belongs to at least one A preconfigured time domain resource.

With reference to the fifth aspect, in some implementations of the fifth aspect, the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or, the first time The relative position between the start position of the window and the end position of the first SS burst is preconfigured.

With reference to the fifth aspect, in some implementations of the fifth aspect, the transceiver unit is further configured to receive second indication information, where the second indication information is used to indicate the end position of the first time window or the first time window length.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first time domain resource does not overlap with the time domain resource occupied by at least one of the following items: SSB, a priority higher than the first information Information, POs carrying paging data different from the beam direction of the first information.

With reference to the fifth aspect, in some implementations of the fifth aspect, when the first time domain resource does not overlap with the time domain resource occupied by the second information, the processing unit is specifically configured to perform the first time domain resource on the first time domain resource. The first information is detected, and the second information is one of the following items: SSB, information with a higher priority than the first information, and PO carrying paging data with a different beam direction from the first information.

With reference to the fifth aspect, in some implementations of the fifth aspect, when the first time domain resource overlaps with the time domain resource occupied by the second information, the processing unit is specifically configured to detect the second information.

With reference to the fifth aspect, in some implementations of the fifth aspect, when the first time domain resource overlaps with the time domain resource occupied by the second information, the processing unit is specifically configured to detect the The first information, the second time domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, and the second time domain position and the time domain occupied by the second information Resources do not overlap.

With reference to the fifth aspect, in some implementations of the fifth aspect, when the first time domain resource and the time domain resource occupied by the second information overlap, the processing unit is specifically configured to detect the PO corresponding to the first information .

In a sixth aspect, an apparatus for paging is provided, the apparatus includes: a transceiving unit, the transceiving unit is configured to receive first indication information, the first indication information is used to indicate the first synchronization information SS burst, the The first SS burst is located before the first paging opportunity PO; the processing unit is configured to detect first information on the third time domain resource, where the first information is used to indicate that the first PO carries paging data Or do not carry paging data, the third time domain resource is located after the start position of the first SS burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is the following: One of the above items: synchronization signal block SSB, information with a priority higher than the first information, PO carrying paging data whose beam direction is different from the beam direction of the first information corresponding to the terminal device.

In a seventh aspect, an apparatus for paging is provided, the apparatus includes: a transceiving unit, the transceiving unit is configured to send first indication information, the first indication information is used to indicate the first synchronization information SS burst, the The first SS burst is located before the first paging opportunity PO; the transceiver unit is further configured to send first information within the first time window, and the first information is used to indicate that the first PO carries or does not carry paging data For paging data, the first time window is located after the first time slot, and the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

With reference to the seventh aspect, in some implementations of the seventh aspect, the transceiver unit is specifically configured to send the first information on a first time domain resource within the first time window, where the first time domain resource belongs to at least one A preconfigured time domain resource.

With reference to the seventh aspect, in some implementations of the seventh aspect, the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or, the first time The relative position between the start position of the window and the end position of the first SS burst is preconfigured.

With reference to the seventh aspect, in some implementations of the seventh aspect, the transceiver unit is further configured to send second indication information, where the second indication information is used to indicate the end position of the first time window or the first time window length.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first time domain resource does not overlap with the time domain resource occupied by at least one of the following items: SSB, a priority higher than the first information Information, POs carrying paging data different from the beam direction of the first information.

With reference to the seventh aspect, in some implementations of the seventh aspect, when the first time domain resource does not overlap with the time domain resource occupied by the second information, the transceiver unit is further configured to perform the first time domain resource on the first time domain resource. The first information is sent, and the second information is one of the following items: SSB, information with a higher priority than the first information, and PO carrying paging data with a beam direction different from that of the first information.

With reference to the seventh aspect, in some implementations of the seventh aspect, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit is further configured to send the second information.

With reference to the seventh aspect, in some implementations of the seventh aspect, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit is further configured to send the The first information, the second time domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, and the second time domain position and the time domain occupied by the second information Resources do not overlap.

With reference to the seventh aspect, in some implementations of the seventh aspect, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit is further configured to send the PO corresponding to the first information .

With reference to the seventh aspect, in some implementations of the seventh aspect, the transceiver unit is specifically configured to send at least one piece of first information within the first time window, and the beam direction of the at least one piece of first information is the same as that of the first SS. The beam directions of at least one SSB in the burst correspond one-to-one.

In an eighth aspect, an apparatus for paging is provided, the apparatus includes: a transceiver unit, the transceiver unit is configured to send first indication information, where the first indication information is used to indicate a first SS burst, the first The SS burst is located before the first PO; the transceiver unit is further configured to send first information on the third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, The third time domain resource is located after the start position of the first SS burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: SSB, The information with a priority higher than the first information, and the PO that carries the paging data whose beam direction is different from the beam direction of the first information corresponding to the terminal device.

In a ninth aspect, a communication device is provided, the communication device includes a processor and a storage medium, the storage medium stores instructions, which when executed by the processor, cause the communication device to perform the first to second aspects. The method according to any one of the above, or perform the method according to any one of the third aspect to the fourth aspect.

A tenth aspect provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is run, causes the communication device to perform any one of the first to second aspects. The method of one item, or perform the method of any one of the third to fourth aspects.

In an eleventh aspect, a computer program product is provided, the computer program product comprising a computer program that, when run by a computer, causes the computer to execute the method according to any one of the first to second aspects, Or perform the method according to any one of the third aspect to the fourth aspect.

A twelfth aspect provides a communication system, including the communication device according to any one of the fifth aspect to the sixth aspect, and the communication device according to any one of the seventh aspect to the eighth aspect.

Description of drawings

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

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 method for paging provided by an embodiment of the present application.

FIG. 5 is another method for paging provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a timing for detecting first information provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of an SS burst and a time window provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application.

FIG. 10 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application.

FIG. 11 is another method for paging provided by an embodiment of the present application.

FIG. 12 is a schematic diagram of a time domain location of an SSB and a PEI provided by an embodiment of the present application.

FIG. 13 is another method for paging provided by an embodiment of the present application.

FIG. 14 is a schematic diagram of a corresponding relationship between MO and SSB for paging PDCCH according to an embodiment of the present application.

FIG. 15 is a schematic diagram of another time domain position of an SSB and a PEI provided by an embodiment of the present application.

FIG. 16 is a schematic block diagram of an apparatus for paging provided by an embodiment of the present application.

FIG. 17 is a schematic block diagram of another apparatus for paging provided by an embodiment of the present application.

FIG. 18 is a schematic block diagram of another apparatus for paging provided by an embodiment of the present application.

Detailed ways

The technical solutions in the present 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 (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th Generation, 5G) mobile communication system or new wireless access Access technology (new radio Access Technology, NR) or next-generation communication systems, such as 6G. The 5G mobile communication system may be a non-standalone (NSA) or a standalone (SA).

The technical solutions provided in this application can also be applied to machine type communication (MTC), Long Term Evolution-machine (LTE-M), device-to-device (D2D) Network, machine to machine (M2M) network, internet of things (IoT) network or other network. 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 may include: vehicle to vehicle (vehicle to vehicle, V2V) communication, vehicle and vehicle Infrastructure (V2I) communication, vehicle to pedestrian (V2P) or vehicle to network (V2N) communication, etc.

The technical solutions provided in this application can also be applied to future communication systems, such as a sixth generation (6th Generation, 6G) mobile communication system. This application does not limit this.

In this embodiment of the present application, the network device may be any device with a wireless transceiver function. The device 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 (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (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, For example, a baseband unit (BBU), or a distributed unit (DU), or a base station in a 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 implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, medium access control (MAC) layer, and physical (PHY) layer. 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, therefore, in this architecture, the higher-layer signaling, such as the 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 the access network (radio access network, RAN), and the CU can also be divided into network devices in the core network (core network, CN), which is not limited in this application.

The network equipment provides services for the cell, and the terminal equipment communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment, and 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 the small cell, where the small cell can include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell), femto cell (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.

In this embodiment of the present application, a terminal device may also be referred to as 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 equipment.

The terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, some examples of 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 unmanned driving (self driving), wireless terminals in remote medical (remote medical) Terminal, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless Telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device, computing device or connection with wireless communication capabilities Other processing equipment to wireless modems, in-vehicle equipment, wearable equipment, terminal equipment in 5G networks or terminal equipment in the future evolved public land mobile network (PLMN), etc.

Among them, wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, 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 device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. 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 development of information technology in the future. Its main technical feature is to connect items to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things. IoT technology can achieve massive connections, deep coverage, and terminal power saving through, for example, narrow band (NB) technology.

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

To facilitate understanding of the embodiments of the present application, a communication system applicable to the methods provided by the embodiments of the present application is first described in detail with reference to FIG. 1 .

FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied. As shown in FIG. 1 , the communication system 100 may include at least one network device, such as the network device 101 in the 5G system as shown in FIG. 1 ; the communication system 100 may also include at least one terminal device, as shown in FIG. 1 The terminal devices 102 to 107. The terminal devices 102 to 107 may be mobile or stationary. Each of the network device 101 and one or more of the end devices 102 to 107 may communicate over a wireless link. Each network device can provide communication coverage for a specific geographic area and can communicate with terminal devices located within that coverage area. For example, the network device may send configuration information to the terminal device, and the terminal device may send uplink data to the network device based on the configuration information; for another example, the network device may send downlink data to the terminal device. Therefore, the network device 101 and the terminal devices 102 to 107 in FIG. 1 constitute a communication system.

Optionally, direct communication between terminal devices is possible. For example, D2D technology can be used to realize direct communication between terminal devices. As shown in the figure, D2D technology can be used for direct communication between

terminal devices

105 and 106 and between

terminal devices

105 and 107 . Terminal device 106 and terminal device 107 may communicate with terminal device 105 individually or simultaneously.

The terminal devices 105 to 107 can also communicate with the network device 101, respectively. For example, it can communicate directly with the network device 101, as shown in the figure, the

terminal devices

105 and 106 can directly communicate with the network device 101; it can also communicate with the network device 101 indirectly, as in the figure, the terminal device 107 communicates with the network device via the terminal device 106. 101 Communications.

It should be understood that FIG. 1 exemplarily shows a network device, a plurality of terminal devices, and communication links between the communication devices. Optionally, the communication system 100 may include multiple network devices, and the coverage of each network device may include other numbers of terminal devices, such as more or less terminal devices. This application does not limit this.

Each of the above communication devices, such as the network device 101 and the terminal devices 102 to 107 in FIG. 1 , may be configured with multiple antennas. The plurality of antennas may include at least one transmit antenna for transmitting signals and at least one receive antenna for receiving signals. In addition, each communication device additionally includes a transmitter chain and a receiver chain, which can be understood by those of ordinary skill in the art, all of which may include multiple components (eg, processors, modulators, multiplexers) related to signal transmission and reception. , demodulator, demultiplexer or antenna, etc.). Therefore, the network device and the terminal device can communicate through the multi-antenna technology.

Optionally, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which are not limited in this embodiment of the present application.

To facilitate understanding of the embodiments of the present application, the following briefly describes the processing process of the downlink signal at the physical layer before sending. It should be understood that the processing of the downlink signal described below may be performed by a network device, or may be performed by a component (such as a chip or a system of chips, etc.) configured in the network device. For convenience of description, hereinafter collectively referred to as network devices.

The network device can process the code word on the physical channel. The codewords may be coded bits that have been coded (eg, including channel coding). The codeword is scrambled to generate scrambled bits. The scrambled bits are subjected to modulation mapping to obtain modulation symbols. Modulation symbols are mapped to multiple layers, or transport layers, through layer mapping. The modulation symbols after layer mapping are precoded to obtain a precoded signal. The precoded signal is mapped to multiple REs after being mapped by resource elements (REs). These REs are then modulated by orthogonal frequency division multiplexing (OFDM) and then transmitted through an antenna port (antenna port).

It should be understood that the processing procedure for the downlink signal described above is only an exemplary description, and should not constitute any limitation to the present application. For the processing process of the downlink signal, reference may be made to the prior art. For the sake of brevity, the detailed description of the specific process is omitted here.

It should be understood that the methods provided in the embodiments of the present application may be applied to a system that communicates through a multi-antenna technology. For example, the communication system 100 shown in FIG. 1 . The communication system may include at least one network device and at least one terminal device. Communication between network equipment and terminal equipment is possible through multi-antenna technology.

It should also be understood that the methods provided in the embodiments of the present application are 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. The present application does not limit the scenarios in which the method is applied. In the embodiments shown below, for ease of understanding and description, the method provided by the embodiments of the present application is described in detail by taking the interaction between a network device and a terminal device as an example.

It should also be understood that the embodiments shown below do not particularly limit the specific structure of the execution body 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 the present application. The method provided by the embodiment of the application can be used for communication, for example. The execution body 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 the 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 bodies of the methods provided in the embodiments 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 performed by at least one of an independent central unit (central unit, CU), distributed unit (distributed unit, DU), and remote unit (remote unit, RU), respectively.

To facilitate understanding of the embodiments of the present application, the following briefly introduces terms involved in the embodiments of the present application.

1. Idle state, connected state and inactive state

In NR, the UE is in three states, radio resource control idle state (radio resource control_idle, RRC_IDLE) state, RRC inactive (RRC_INACTIVE) state and RRC connected state (RRC_CONNECTED) state.

The RRC_IDLE state, which may also be called an idle state, refers to a state in which the terminal device completes camping in the cell but does not perform a random access procedure. The terminal device usually enters the idle state after being powered on or after the RRC is released. When the UE is in an idle state, the air interface connection between the UE and the base station is disconnected, the context information is no longer saved, and the UE can only receive broadcast information sent by the base station.

The RRC_CONNECTED state, also known as the connected state, corresponds to the idle state. The connected state refers to the state in which the terminal device is in when the RRC release is not performed after the random access procedure is completed. When the terminal device is in the connection state, it establishes an air interface connection with the network device, and communicates with the network device according to the air interface connection. When the terminal device is in the idle state, after the terminal device completes the random access procedure, the state of the terminal device transitions to the connected state. When the terminal device is in the connected state, after completing the RRC release, the state of the terminal device transitions to the idle state.

The RRC_INACTIVE state can also be called the inactive state. The inactive state is a state between the connected state and the idle state. For a terminal device in an inactive state, the user plane bearer of the air interface has been suspended, and the user plane bearer and control plane bearer between the RAN and the CN are still maintained. When a terminal device initiates a call or a service request, the user plane bearer of the air interface needs to be activated, and the existing user plane bearer and control plane bearer between the RAN and CN are reused. When the UE is in the inactive state, the air interface connection between the UE and the base station is disconnected, but the context information is continued to be saved. When the UE enters the connected state from the inactive state, it can quickly return to the connected state based on the saved context information.

2. Paging and paging messages

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 is established with the network, the connection is suspended. When the network has downlink data that needs to be sent to an idle or inactive UE, the network needs to paging the UE through a paging process to notify the UE to establish or restore an 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.

When the UE is in the idle state, there is no RRC connection between the UE and the gNB, and there is no RRC context for the UE, that is, the gNB does not know the existence of the UE. From the perspective of the core network, the UE is in connection management at this time. Idle (connection management idle, CM_IDLE) state, for example, the state of the UE in the access and mobility management function (AMF), there is no non-access stratum (non-access stratum) between the UE and the core network stratum, NAS) connection, but the UE has been assigned a unique identifier in the tracking area (TA) where it is located, the UE has been registered with the AMF, and there is a context in the AMF. When the core network needs to send downlink data or downlink NAS signaling to the UE in the CM_IDLE state, the AMF will send a paging message to all gNBs in all TAs registered by the UE, and then the gNB will send a paging message through the air interface to Page the UE. After the UE in the idle state receives the paging message, it usually initiates an RRC connection establishment process to receive downlink data.

In the inactive state, although both the UE and the gNB keep the RRC context, the RRC connection between the UE and the gNB is suspended. At the same time, the connection between the UE and the core network is still maintained, that is, from the perspective of the core network, the UE is in the CM_CONNECTED state at this time. When the network needs to send data to an inactive UE, for example, when downlink data arrives, since the RRC connection is suspended, the network needs to page the UE. Also, since the core network considers that the UE is in a connected state at this time, the core network will not initiate paging, but a RAN node, such as a base station (gNB), will initiate paging.

In the inactive state, the last gNB node serving the UE will save the UE context and maintain the connection with the core network. If the last gNB serving the UE receives downlink data or UE-related NAS signaling from the core network when the UE is inactive, the gNB will be notified in the RAN-based notification area (RNA) to which the UE belongs. The UE is paged on all cells included. If the RNA includes a cell on a neighboring gNB, the gNB will send an Xn application protocol (Xn application protocol, Xn AP) RAN paging message to the neighboring gNB to notify the neighboring gNB to page the UE on the corresponding cell. After receiving the paging message, the UE in the RRC_INACTIVE state usually initiates an RRC connection establishment and recovery process to receive downlink data. The RAN notification area here is a RAN-based notification area managed by the NG-RAN (eg gNB), and the NG-RAN knows the RNA to which the UE belongs.

The UE in idle or inactive state supports the use of discontinuous reception (DRX) to receive paging messages to reduce power consumption. The DRX is also called paging DRX. 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 idle or inactive state will only "wake up" to receive paging messages during pre-defined time periods, and can remain "sleep" and stop receiving paging messages at other times, thus reducing the Power consumption, which improves the battery life of the UE.

For paging DRX, the UE in idle state or inactive state will only try to receive the paging radio network temporary identifier (paging radio network temporary identifier) at a specific paging occasion (PO) in each paging cycle. P-RNTI) scrambled PDCCH. In the NR system, PO is a monitoring occasion (MO) of a set of physical downlink control channels (PDCCH). One PO may contain multiple time slots (time slots), for example, the time slots may be subframes or orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols. The network device may send downlink control information (DCI) for scheduling paging messages in the PO. In addition, a paging frame (paging frame, PF) is a radio frame, which may contain one or more POs or the start of POs. When monitoring the PO, the terminal device first determines the location of the PF, and then determines the location of the PO associated with the PF. It should be noted that a PO associated with a PF can start from within the PF or after the PF, and the UE can determine the PO location that it needs to monitor according to the paging configuration parameters and UE_ID.

3. Synchronization Signal Block (SSB)

SSB can also be called a physical broadcast channel (Physical Broadcast Channel, PBCH) block (block), by the primary synchronization signal (Primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS) and broadcast channel (physical broadcasting channel, PBCH), occupying 4 symbols in the time domain.

FIG. 2 is a schematic diagram of content carried by an SSB symbol provided by an embodiment of the present application. The SSB bandwidth is 20 resource blocks (RBs), including 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, and no other data or control information is sent on both sides; the second and fourth symbols are broadcast channels. (physical broadcasting channel, PBCH), mainly carries system information; the third symbol carries both PBCH and SSS, where the length of the SSS sequence is 127 like the PSS, and both occupy 127 resource elements (resource element, RE) in the middle of the SSB . Both sides of the SSS use 48 REs to transmit the PBCH respectively, and there are 8 and 9 REs between the SSS and the PBCH.

4. Synchronization signal burst (SS burst)

The network device sends the SSB according to the SSB time-domain multiplexing pattern 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 for transmission, and there is a transmission period for the transmission of the SSB. For example, the transmission period of the SSB can be 20ms. In each SSB period, the network device can use the time division method within a short period of time. SSBs that transmit multiple different beams. This short duration is called an SS burst. In the NR system, the SSBs of different beams are multiplexed according to different time-domain patterns according to different frequency bands. 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 the SSB in 2 time slots with the length of 1ms, and a maximum of 4 different SS bursts can be sent in the SS burst. The SSB of the direction, namely SSB0, SSB1, SSB2 and SSB3 in the figure, wherein the padding part in the figure is the symbol position where the SSB can be sent. It should be understood that in an 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 only send SSB1 and SSB3.

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

The SSB in each beam direction occupies 4 OFDM symbols on time domain resources, and the content carried by each OFDM symbol can be shown in FIG. 2 .

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

The specific time at which the UE receives the paging is determined by a paging frame (paging frame, PF) and a paging occasion (paging occasion, PO). PF indicates the frame for sending paging, that is, UEs in idle state and inactive state will only receive paging attempts in the PF; PO indicates the timing of attempting to receive paging in a PF, since the paging message is actually The P-RNTI scrambled DCI is scheduled, so one PO actually corresponds to the detection timing of S P-RNTI scrambled DCIs, and S can be obtained from 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 (SFN), PF_offset is the frame offset of the PF, and T represents the DRX cycle or paging cycle, which is a time unit, that is, the UE can have one or more Multiple attempts to receive pages. N=min(T, nB), where nB represents the number of PFs in one DRX cycle or paging cycle. In addition, the value range of SFN is 0 to 1023. The value range of T is 32, 64, 128, 256, and the unit is a radio frame. The value of nB is 4T, 2T, T, T/2, T/4, T/8, T/16, T/32, and the unit is a radio frame. UE_ID is the UE identifier, which can be the 5th generation system architecture evolution-temporary mobile subscriber identity (5G-S-TMSI) mod 1024 or full inactive-RNTI (full inactive-RNTI) , fullI-RNTI).

When an SFN satisfies the above formula, the SFN is considered as a PF. The UE will attempt to receive pages within this PF. For each PF, there can be multiple POs, and the parameter Ns is used in NR to represent the number of POs corresponding to one PF. It should be noted 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.

6. Beam

Beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, so that higher communication efficiency and higher network capacity can be achieved. However, in a communication network using beamforming technology, it is necessary to match the transmit beam of the transmitter with the receive beam of the receiver to maximize the gain of the transmitted signal at the transmitter and the receiver, otherwise a relatively high communication efficiency may not be achieved.

7. Paging indication (PI) and Paging Early Indication (PEI)

Since 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 has completely parsed the paging PDSCH data will it know whether the network device really 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 at each PO is about 1%. Therefore, the UE's paging reception at about 99% of the other POs is a useless power consumption overhead. Conducive to power saving.

Therefore, the PI can be sent before the PO, and it is determined whether to receive the paging DCI and/or the paging PDSCH in the PO according to the indication of the PI. If the PI indicates that there is no paging in the PO, the UE can enter the sleep mode after receiving the SSB and the PI, and does not need to receive the paging DCI and/or the paging PDSCH in the PO, so as to achieve the purpose of saving power consumption.

In order to ensure that the UE in the idle state or the inactive state can successfully receive the PI, before receiving the PI, the UE generally needs to perform time frequency tracking (time frequency tracking) through the SSB to correct the time and frequency domain deviation with the base station, so that The UE residual time-frequency offset will not affect the UE's reception of paging PDCCH and PDSCH. At the same time, the UE can also perform automatic gain control (AGC) estimation by receiving the SSB to adjust the gain parameters of the UE receiver.

In NR, PI is called PEI, and PEI may be sent in the form of DCI, SSS, or channel state information reference signal (CSI-RS). Wherein, adopting the mode of DCI, SSS or CSI-RS respectively means that the message of the paging indication is carried in DCI, SSS or CSI-RS and sent in the DCI, SSS or CSI-RS respectively.

In order to facilitate the understanding of the embodiments of the present application, the following descriptions are made.

First, in this application, for the convenience of description, when referring to numbering, the numbering can be consecutively started from 0, or can be consecutively numbered from 1, or can be numbered from any parameter. It should be understood that the above descriptions are all settings for the convenience of describing the technical solutions provided by the embodiments of the present application, and are not intended to limit the scope of the present application.

Second, in the embodiments shown below, the first, the second, and various numeral numbers are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different indication information and so on.

Third, in the embodiments shown below, "pre-configured" may include signaling or pre-definition by a network device, eg, a protocol definition. Wherein, "pre-definition" can be realized by pre-saving corresponding codes, forms or other methods that can be used to indicate relevant information in the equipment (for example, including terminal equipment and network equipment). limited.

Fourth, the "storage" involved in the embodiments of this application may refer to being stored in one or more memories. The one or more memories may be set separately, or may be integrated in an encoder or a decoder, a processor, or a communication device. The one or more memories may also be partially provided separately and partially integrated in a decoder, a processor, or a communication device. The type of memory may be any form of storage medium, which is not limited in this application.

Fifth, the "protocols" involved in the embodiments of this application may refer to standard protocols in the communication field, such as LTE protocols, NR protocols, and related protocols applied in future communication systems, which are not limited in this application.

Sixth, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b and c can represent: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a , b and c. Where a, b and c can be single or multiple respectively.

Seventh, in this embodiment of the present application, "for indicating" may include direct indicating and indirect indicating. For example, when describing a certain indication information for indicating information I, the indication information may directly indicate I or indirectly indicate I, but it does not mean that the indication information must carry I.

The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the information to be indicated. Indicating the index of information, etc. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be implemented by means of a pre-agreed (for example, a protocol stipulated) arrangement order of various information, so as to reduce the indication overhead to a certain extent. At the same time, the common part of each piece of information can also be identified and indicated uniformly, so as to reduce the indication overhead caused by indicating the same information separately.

In addition, the specific indication manner may also be various existing indication manners, such as, but not limited to, the above indication manner and various combinations thereof. It can be seen from the above that, for example, when multiple pieces of information of the same type need to be indicated, different information may be indicated in different manners. In a specific implementation process, a desired indication manner may be selected according to specific needs, and the selected indication manner is not limited in this embodiment of the present application. As such, the indication manners involved in the embodiments of the present application should be understood to cover various methods that can enable the party to be instructed to learn the information to be instructed.

The information to be indicated may be sent together as a whole, or may be divided into multiple sub-information and sent separately, and the transmission periods and/or transmission timings of these sub-information may be the same or different. The specific sending method is not limited in this application. The sending period and/or sending timing of these sub-information may be predefined, for example, predefined according to a protocol, or configured by the transmitting end device by sending configuration information to the receiving end device. Wherein, the configuration information may include, for example but not limited to, radio resource control signaling, such as radio resource control (radio resource control, RRC) signaling, medium access control (medium access control, MAC) layer signaling, such as MAC-information Element (control element, CE), and physical layer signaling, such as one or a combination of at least two of downlink control information (downlink control information, DCI).

The method and apparatus 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 method for paging provided by an embodiment of the present application. In this embodiment of the present application, the network device may send paging-related information to a terminal device or a terminal device group, where the terminal devices in one terminal device group monitor the same PO. For the sake of brevity, the following description only takes sending paging-related information to a terminal device as an example. It should be understood that the embodiments of the present application are also applicable to a solution in which a network device sends a paging to a terminal device group.

401. The network device sends first indication information to a terminal device or a terminal device group, where the first indication information is used to indicate a first SS burst, and the first SS burst is located before the first PO.

When the network device broadcasts the SSB and the first information, the broadcast information may be for a specific terminal device or at least one terminal device group. Therefore, the network device is sending the first indication information to indicate the first When the SS bursts, it can be sent to a terminal device, or can be sent to at least one terminal device group. The embodiments of this application only take the network device sending information to a certain terminal device as an example for description, which is not limited.

The first indication information sent by the network device is used to indicate the first SS burst, where the first SS burst is located before the first PO, and the first PO is the opportunity for the network device to send the paging PDCCH to the terminal device. Since the first SS burst has a certain period, the first indication information may indicate that the first SS burst is the Kth SS burst before the first PO, and K is a positive integer.

After receiving the first indication information, the terminal device may determine, according to the time domain location of the first SS burst indicated in the first indication information, the time domain location where the first information can be subsequently detected.

402. The network device sends first information in a first time window, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the first time window is located after the first time slot, The first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

Since the SS bursts are sent according to a certain period, and the time domain multiplexing pattern of the SSBs in each SS burst will not change for a long period of time, the time domain position occupied by each SS burst is relatively fixed. , when the network device determines the time domain position for sending the first information, it can associate the time domain position for sending the first information with the time domain position of the first SS burst, and the time domain position of the first SS burst is A reference is used to determine a time domain position for sending the first information.

For example, the network device may send the first information within the first time window. The first information is used to indicate whether there is a paging PDCCH sent to a terminal device or a terminal device group in the first PO, where the PDCCH is scrambled by P-RNTI. The first information can be PI, PEI, or other information that can be used to indicate that the first PO carries or does not carry paging PDCCH, and is related to the number and beams of SSBs sent in the first SS burst The directions correspond one by one. The position of the first time window is associated with the first SS burst indicated in step 401, that is, the first time window may be located after the time slot where the last SSB in the first SS burst is located, for example, may be located at the end of the time slot On the first time unit after the time slot, it may also be located on the time unit with a certain time interval after the end of the time slot.

The network device may preconfigure the time interval between the start position of the first time window and the end position of the first time slot, or between the start position of the first time window and the end position of the first SS burst The starting position of the first time window can be determined, and the second indication information can be used to indicate the ending position of the first time window or the length of the first time window. In this way, a time window can be determined, and the time domain position for sending the first information within the time window is pre-determined to be valid, that is, the first information can be sent at the time domain position of the time window, and the first information can be sent outside the time window. Even if the period and offset of the first information are satisfied, the first information will not be sent at the time domain position of . The period and offset of the first information are pre-configured by the network device, and the network device can determine the time domain position occupied by the first information according to the period and the offset, and send the first information at the time domain position . That is, when the network device sends the first information, it will configure the first time domain resource for the first information, and send the first information on the first time domain resource, where the first time domain resource may be, for example, The MO that sent the first message. In this embodiment of the present application, the time domain location that can effectively send the first information should also satisfy the condition that the time domain location is within the first time window. Therefore, the network device may specifically locate the first time domain resource in the first time window. Send the first message.

In this embodiment of the present application, a time interval may be understood as a relative position between two time positions, and the time position here may be a time point or a time unit or the like. For example, the start position of the first time window may be the left boundary of the first time window, or may be the first symbol in the first time window, and the end position of the first time slot may be the right boundary of the first time slot , or the last symbol in the first time slot, and the time interval between the two can be understood as any parameter that can define the relative position between the two. When the time position is a time point, the parameter can be the distance between time points; when the time position is a time unit, the parameter can be the distance between the center positions of the time units, or the left border of a time unit or the space between the right boundary and the left or right boundary of another time unit.

The above-mentioned methods are all cases when the first time domain resources in the first time window do not overlap with the time domain resources occupied by the second information, wherein the second information may be SSB, the priority of which is higher than that of the first information. information or a paging PDCCH in a different beam direction than the first information beam, etc. The overlap between the time domain resources occupied by the two may include partial overlap and full overlap. For example, the first time domain resource and the time domain resource occupied by the second information are the same in at least one time unit, that is, it is considered that the two occupied The time-domain resources of the two overlap, and only when the time-domain resources occupied by the two are not the same in any time unit, it can be considered that the time-domain resources occupied by the two do not overlap.

When the first time domain resource in the first time window overlaps with the time domain resource occupied by the second information, the network device preferentially sends the second information, and delays the time domain position for sending the first information to the next available time domain In terms of location, that is, the second time domain resource, that is, the time domain location that does not overlap with any kind of second information, and the second time domain resource is also a time domain location preconfigured by the network device that can send the first information. If the network device cannot configure an appropriate second time domain resource, for example, the next available second time domain resource is located after the PO that sends the paging PDCCH, the network device may not send the first information, but only send it on the next PO Page the PDCCH.

Optionally, the network device may also send the first information on a third time domain resource, and the third time domain resource is located after the start position of the first SS burst, for example, may be located at the first position of the start position of the first SS burst. In one time unit, it may also be located in a time unit with a certain time interval after the start position of the first SS burst, and the third time domain position and the time domain position occupied by the second information do not overlap. That is, the network device sends the first information at a time domain position available after the start position of the first SS burst, and the time domain position should satisfy the period and offset preconfigured by the network device for the first information.

403. The terminal device detects the first information within the first time window.

The terminal device may obtain the time domain position for detecting the first information based on the time domain position of the first SS burst. It should be understood that when the network device determines the relevant parameters for sending the first information, it also assigns these parameters to the terminal device. Therefore, the terminal device can also obtain the time domain position for detecting the first information according to the first indication information and related configurations. , and detect the first information at the time domain position.

In the embodiment of the present application, by associating the time domain resources for sending the SS burst and sending the first information to determine the timing for sending and detecting the first information, there may be no paging PDCCH sent to the terminal device in the first PO. In this case, to avoid the power consumption overhead caused by the terminal device being woken up all the time, and at the same time configure an appropriate time interval for the SS burst and time window or other time domain locations where the first information is sent, which can further reduce the sleep and wake-up time of the terminal device. The power consumption overhead generated in the process.

FIG. 5 is another method for paging provided by an embodiment of the present application. In this embodiment of the present application, the network device may send paging-related information to a terminal device or a terminal device group, where the terminal devices in one terminal device group monitor the same PO. For the sake of brevity, the following description only takes sending paging-related information to a terminal device as an example. It should be understood that the embodiments of the present application are also applicable to a solution in which a network device sends a paging to a terminal device group.

501. The network device sends first indication information to the terminal device, where the first indication information is used to indicate the first SS burst, the first SS burst is the Kth SS burst before the first PO, and K is a positive integer .

In order to save the power consumption of the terminal device, before receiving the paging PDCCH on the first PO, the terminal device needs to receive first information sent by the network device, where the first information is used to indicate whether there is a paging PDCCH in the first PO. After receiving the first information, the terminal device parses the first information. If the first information indicates that there is a paging PDCCH sent to the terminal device in the first PO, the terminal device wakes up on the first PO and detects paging DCI, receives the paging PDSCH according to the scheduling of the paging DCI, and then parses the paging PDSCH and accepts the paging data; if the first information indicates that there is no paging PDCCH in the first PO, the terminal device goes to sleep after receiving the first information , no longer wake up on the first PO, to avoid the overhead waste caused by the terminal equipment still being woken up when there is no paging PDCCH to receive. Wherein, the first information may be PI, may also be PEI, or other information that may be used to indicate that the first PO carries the paging PDCCH or does not carry the paging PDCCH. In the embodiments of the present application, only the first information is PEI as an example for description, and the first information is not limited.

Therefore, the terminal device needs to determine the timing of detecting the first information. The network device sends first indication information to the terminal device, where the first indication information carries a K value, where the K value represents the Kth SS burst before the first PO. That is, the network device associates the timing for sending the first information with the Kth SS burst before the first PO, and the timing for sending the first information can be determined by the time domain position where the SS burst is located. K is a parameter pre-agreed by the network device and the terminal device, or a parameter pre-configured by the network device to the terminal device.

After receiving the first indication information, the terminal device determines the SS burst associated with the first information, and wakes up to prepare to receive the SSB in the SS burst and the first information associated therewith.

The timing for detecting the first information determined by the terminal device will be specifically described below with reference to FIG. 6 , taking K=3 and the received first information being PEI as an example.

FIG. 6 is a schematic diagram of a timing for detecting first information provided by an embodiment of the present application. The network device instructs the terminal device to detect the PEI after the paging reception timing, that is, the first PO and the third SS burst before, that is, the timing of sending or detecting the PEI indicated by the network device is the same as the SS burst in Figure 6. #3 has an association relationship.

502. The network device sends the SSB and the first information.

The network device sends the SSB according to the pre-configured SS burst time-domain multiplexing pattern, and at the same time sends the PEI on a certain monitoring occasion (MO, monitoring occasion) according to the parameter K pre-agreed with the terminal device or pre-configured to the terminal device. The MO of the PEI is the time domain position where the PEI may appear, and the time domain position can be determined by the period of the MO and the offset of the MO within the period. Wherein, the period of MO can be in the unit of time slot, or can be in unit of symbol, subframe, frame, etc.; the offset of MO can be the nth symbol in the mth time slot in a period, that is PEI is sent on the n-th symbol in the m-th time slot in the period, where m and n are both positive integers.

The MO of the PEI is located within a certain time window, that is, the MO is only valid within the time window, and outside the time window, even if the MO meets the period and offset, the PEI will not be sent. The time domain resource where the time window is located is determined by the start time of the time window and the end time of the time window, or is determined by the start time of the time window and the time length of the time window.

In step 501, the timing of sending and detecting the PEI is associated with the Kth SS burst before the first PO, that is, the start time of the time window where the MO of the PEI is located can be located after the SS burst, which is the same as the SS burst. There is a certain time interval (gap) between the end times of , and the time interval is a time unit greater than or equal to 0, which is pre-configured by the network device.

FIG. 7 is a schematic diagram of an SS burst and a time window provided by an embodiment of the present application. As shown in FIG. 7 , the first time window 701 includes, for example, MOs of two PEIs, namely MO1 and MO2, and each MO can correspond to Beam directions of different SSBs in an SS burst. Usually, the MO is configured for the PEI before sending the SS burst, and the information of the MO can be sent to a terminal device or a terminal device group, or can be broadcast. The start time of the time window 701 can be determined by the time interval from the SS burst to the time window, such as the time interval between the SS burst #3 shown in FIG. 7 and the time window 701, which is greater than or equal to A time unit of 0, pre-configured by the network device. In addition, the network device may also send second indication information to the terminal device, where the second indication information is used to indicate the end position of the first time window or the length of the time window.

Since the time window where the MO where the network device sends the PEI is located after the end time of the SS burst #3, the end time of the SS burst needs to be pre-specified. There are many possible definitions for the end time of the SS burst. Taking the subcarrier interval of 30 kHz as an example, the duration of an SS burst is 2 ms, including 4 time slots, and a maximum of 8 SSBs can be sent. The network device is configured to send two SSBs on time slot 0 and time slot 1 respectively, and no SSB is sent on time slot 2 and time slot 3. Under the above preset conditions, a specific description will be given with reference to FIG. 8 to FIG. 10 .

FIG. 8 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application. As shown in FIG. 8 , the end time of the SS burst is defined as the end of a 2ms SS burst, that is, the end time of time slot 3 in FIG. 8 , then the time window where the MO of the PEI is located starts from time slot 3 A certain time interval starts after the end, and the time interval between the time window of PEIMO and the end time of the SS burst shown in Figure 8 is 0. The network device starts counting PEIs after time slot 3 ends. The number of PEIs sent is the same as the number of SSBs actually sent, and the beam direction sent by PEI corresponds to the beam direction of each SSB sent in sequence. For example, if 4 SSBs are actually sent in an SS burst in Figure 8, 4 PEIs are also sent in the time window of PEI MO. The beam direction for transmitting PEI0 is the same as the beam direction for transmitting SSB0, the beam direction for transmitting PEI1 is the same as the beam direction for transmitting SSB1, and so on.

FIG. 9 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application. As shown in Figure 9, at this time, the end time of the SS burst is defined as the end time of the last time slot in the SS burst that actually sends the SSB, that is, the end time of the time slot 1 in which SSB3 is sent in Figure 9, then the PEI The time window where the MO is located starts from a certain time interval after the end of time slot 1, and the time interval between the time window of the PEI MO and the SS burst shown in Figure 9 is 0. The network device starts counting PEIs after time slot 1 ends. The number of PEIs sent is the same as the number of SSBs actually sent, and the beam direction sent by PEI corresponds to the beam direction of each SSB sent in sequence. The specific corresponding manner is the same as the corresponding manner shown in FIG. 8 , and details are not described herein again.

FIG. 10 is a schematic diagram of another SS burst and time window provided by an embodiment of the present application. Fig. 10 is the same as the specification for the end time of the SS burst in Fig. 9. Fig. 10 shows the case where the time interval between the PEIMO time window and the SS burst is one time slot.

Among them, the MO of PEI can be determined by the period and other parameters, and the time domain symbol occupied by a PEI may be different from the time domain symbol occupied by an SSB, so the symbol position occupied by PEI in one time slot may be the same as that of SSB in the same time slot. The occupied symbol positions are inconsistent. This embodiment of the present application only limits the start time of the time window where the MO that sends the PEI is located, and does not limit the specific symbols occupied by the MO of the PEI in the time window.

503. The terminal device detects the SSB, and detects the first information within the first time window.

When a terminal device is powered on to camp on a cell or switch to a cell, it can measure multiple SSBs broadcast in the cell within one SSB cycle, determine the beam with the best reception quality, and access and uplink and downlink data in subsequent cells. When beam selection is performed during transmission, the measured beam quality of the SSB is used as a reference.

Still taking K=3 and the first information is PEI as an example, the terminal device detects multiple SSBs broadcast by the network device in the SS burst #3, and determines the beam with the best receiving quality. Receive PEI in this direction, and receive the paging PDCCH corresponding to the PEI in the same beam direction; you can also detect PEI in each beam direction after receiving each SSB, and select the beam with the best reception quality to Receive the paging PDCCH corresponding to the PEI.

The terminal device determines the first time window for detecting PEI according to the description in step 502, and detects PEI on the MO in the time window. Among them, in the configuration of Figure 8, since time slot 2 and time slot 3 do not send SSB, the terminal device does not need to receive any channel or signal on time slot 2 and time slot 3, so the terminal device will be in time slot 2 and time slot 3. The time domain resource where time slot 3 is located enters a micro sleep (micro sleep). In the configurations shown in Figure 9 and Figure 10 , the terminal device is always in the awake state until after detecting the PEI, it parses out whether there is a paging PDCCH sent to the terminal device in the first PO indicated by the PEI, and then enters the sleep state.

In the embodiment of the present application, the terminal device determines the timing of detecting the PEI by associating the SS burst with the PEI, so as to prevent the terminal device from being woken up all the time when there is no paging PDCCH sent to the terminal device in the first PO. The resulting power consumption overhead, while minimizing the idle time between the SS burst and the PEI time window, can further reduce the power consumption overhead generated by the terminal device in the process of sleeping and waking up.

In the method shown in FIG. 11 , step 1101 is the same as step 501 shown in FIG. 5 , and details are not repeated here.

1102. The network device sends the SSB and the first information.

The way the network device sends the SSB is the same as the way the network device sends the SSB in step 502 shown in FIG. 5 , and the way the network device sends the first information is different from the way the network device sends the first information in step 502 shown in FIG. 5 . different. Taking the first information as PEI as an example, FIG. 12 is a schematic diagram of time domain positions of an SSB and a PEI provided by an embodiment of the present application. Wherein, Fig. 12 shows that when the subcarrier interval is 30 kHz, the duration of one SS burst is 2 ms, including 4 time slots, and a maximum of 8 SSBs can be sent. The network device is configured to send 6 SSBs from time slot 0 to time slot 3, namely SSB0, SSB1, SSB3, SSB4, SSB5 and SSB6, that is, the SSBs in the solid line part in Figure 12, and the time domain positions of SSB2 and SSB7 are different. Send SSB.

At this time, the time domain resource used for sending PEI after the SS burst may be the third time domain resource, and the third time domain resource is the time domain resource available after the starting position of the SS burst. The available time domain resource refers to the time domain resource occupied by the PEI determined according to the period and offset of the configured PEI, and the PEI does not conflict with the second information on the time domain resource, and the second information can be SSB, priority Information higher than the first information or paging data with different beam directions from the first information, that is, the time domain resources occupied by the PEI and the second information are not the same in any time unit. On the third time domain resource, the first PEI corresponds to the first SSB in the SS burst, that is, the beam direction for sending the first PEI is the same as the beam direction for sending the first SSB; the second The MO of the PEI will be on the time domain resources available after the MO of the first PEI, and so on.

In FIG. 12 , the first available third time domain resource is the time domain resource where SSB2 is located in time slot 1 . Since the SSB is not actually sent at the time domain position of SSB2, and there are no other channels or signals with higher priority than PEI sent at this time domain position, the network device can send PEI0 and PEI0 at this time domain position. The beam direction is the same as that of SSB0.

By analogy, if the second available third time domain resource is located on the time domain resource where SSB7 is located, the network device sends PEI1 at the time domain location where SSB7 is located. It should be understood that, after the end of time slot 3, the time domain positions of PEI3, PEI4, PEI5 and PEI6 that are sent subsequently do not conflict with any SSB or any channel or signal with a higher priority than PEI.

Among them, the network device has a certain starting reference point and period when sending PEI. Therefore, the time domain symbol occupied by PEI0 in Figure 12 is not necessarily exactly the same as the time domain symbol that should be occupied by SSB2. It may be the end symbol of SSB1. Between the start symbol of SSB3 and the occupied time domain symbol, there is no SSB or other channel or signal transmission with a priority higher than PEI.

1103. The terminal device detects the SSB, and detects the first information on the third time domain resource.

Taking the first information as PEI as an example, the terminal device can obtain the time-domain multiplexing pattern of the SS burst in the blind detection process, and the network device configures the time-domain position of the starting reference point of the PEI and the transmission period of the PEI to The terminal device, so the terminal device can obtain the positional relationship between the SSB and the PEI on the time domain resources, and detect the SSB or the PEI at the corresponding time domain position.

Taking FIG. 12 as an example, the terminal device detects SSB0 and SSB1 in time slot 0, and detects PEI0 in time slot 1 first, and then detects SSB3. Wherein, when the terminal device detects PEI0, if the PEI is carried in the DCI, the terminal device needs to parse and decode the DCI to obtain the information indicated in the PEI, that is, to indicate whether there is a paging sent to the terminal device in the first PO PDCCH; if the PEI is carried in the SSS or CSI-RS, it can only detect whether there is a corresponding sequence in this type of signal to determine the information indicated in the PEI. For example, if there is a specified sequence, the PEI indicates The corresponding PO includes a paging PDCCH sent to the terminal device, and if there is no specific sequence, the PEI indicates that there is no paging PDCCH sent to the terminal device in the corresponding PO.

In this embodiment, since the terminal device starts to detect PEI without receiving all the SSBs in the SS burst, it can be specified to receive at least one SSB first, and select the beam direction with the best reception quality in the at least one SSB , detect the PEI in the beam direction; it is also possible to continuously detect multiple SSBs and multiple PEIs, select the beam direction with the best reception quality among the multiple PEIs, and determine whether the PEI in the beam direction indicates whether there is any The paging PDCCH sent to the terminal equipment; it is also possible to select a beam with better reception quality by beam polling, detect the SSB in the beam direction, and detect the PEI in the beam direction; The beam direction selected when detecting the SSB, in which the PEI is attempted to be detected. The above method is only an example, not a limitation.

In the embodiment of the present application, the terminal device determines the timing of detecting the PEI by associating the SS burst with the PEI, so as to prevent the terminal device from being woken up all the time when there is no paging PDCCH sent to the terminal device in the first PO. At the same time, using the time domain resources that do not send SSB or other information in the SS burst, sending PEI at the time domain position where PEI can be sent can further reduce the power consumption of the terminal device during the process of sleeping and waking up. power consumption.

FIG. 13 is another method for paging provided by an embodiment of the present application. The method shown in Figure 13 is based on the method shown in Figure 5. Considering that there is also a corresponding relationship between the MO of the paging PDCCH and the beam of the SSB, the MO of the PEI may collide with the MO of the PDCCH in time. The method of sending and detecting PEI is adopted. In this embodiment of the present application, the network device may send paging-related information to a terminal device or a terminal device group, where the terminal devices in a terminal device group monitor the same PO. For the sake of brevity, the following description only takes sending paging-related information to a terminal device as an example. It should be understood that the embodiments of the present application are also applicable to a solution in which a network device sends a paging to a terminal device group.

Step 1301 is the same as step 501 shown in FIG. 5 , and details are not repeated here.

1302. The network device sends the SSB and the first information.

When the network device sends the paging PDCCH in the PO, there are M paging PDCCH MOs in each PO, M is a positive integer, and the number of M is the same as the number of SSBs in different beam directions configured in the cell. And each SSB corresponds to one MO in one PO, that is, the beam of the paging PDCCH sent in the MO is the same as the corresponding SSB. The contents of the paging PDCCH sent on different MOs are the same, so the terminal device can select the MO with the best receiving performance to receive the paging PDCCH according to the beam measurement result of the SSB, or it can also use the beam polling method to receive the paging PDCCH. way to receive multiple paging PDCCHs.

For example, as shown in FIG. 14 , FIG. 14 is a schematic diagram of a corresponding relationship between MO and SSB for paging PDCCH provided by an embodiment of the present application. In Fig. 14, the cell is configured with 2 SSBs and 4 POs. Therefore, there are two MOs that can send paging PDCCHs in each PO, and SSB1 and SSB2 correspond to MO1 and MO2 in one PO, respectively. The contents of the paging PDCCHs sent on MO1 and MO2 are the same.

Optionally, the beam may also correspond to the information associated with the reference signal resource of the network device, wherein the reference signal may be CSI-RS, SSB, demodulation reference signal (demodulation reference signal, DMRS), phase tracking signal (phase tracking reference signal) , PTRS), tracking reference signal (tracking reference signal, TRS), etc. The information associated with reference signal resources can be reference signal resource identifiers, or quasi co-location (QCL) information, such as type D type QCL ( QCL-typeD) and so on. Wherein, the reference signal resource identifier corresponds to a transceiving beam pair established based on the reference signal resource measurement before, and the terminal device can infer beam information through the reference signal resource index. Optionally, the beam may also correspond to a spatial filter (spatial filter, spatial domain filter) and a spatial domain transmission filter (spatial domain transmission filter).

The solution of the embodiment of the present application is described below by taking the first information as the PEI as an example. FIG. 15 is a schematic diagram of a network device broadcasting time domain positions of the SSB and the PEI provided by the embodiment of the present application. Among them, Fig. 15 shows that when the subcarrier spacing is 30 kHz, the duration of one SS burst is 2 ms, including 4 time slots, and a maximum of 8 SSBs can be sent. The network device is configured to transmit 6 SSBs from time slot 0 to time slot 3, namely SSB0, SSB1, SSB3, SSB4, SSB5 and SSB6, that is, the SSBs in the solid line in Figure 15, are not in the time domain positions of SSB2 and SSB7. Send SSB.

In addition to sending SSB and PEI, the network device may also send paging PDCCH on a certain MO, and the MO of paging PDCCH also has a corresponding relationship with the beam direction of sending SSB, so the MO sending PEI may be the same as sending paging PDCCH. The MOs will collide in time domain resources, or overlap, that is, the time domain resources occupied by the two are the same in at least one time unit. The paging PDCCH sent by the network device may be sent to other terminal devices or other terminal device groups, and the beam direction of the PEI colliding with it is different from the beam direction of the paging PDCCH sent.

As shown in FIG. 15 , the MO for sending the paging PDCCH and the MO for sending the PEI are in one-to-one correspondence with the six SSBs in different directions configured by the cell. One or more parameters of start point, period and period offset are different, so there may be transmission collisions on time domain resources. For example, POMO0 and POMO1 correspond to the beam directions of SSB0 and SSB1, PEI5 and PEI6 correspond to the beam directions of SSB5 and SSB6, and the time domain positions occupied by POMO0 and POMO1 and the time domain resources required by PEI5 and PEI6 are located in the time domain On the resource 1501, that is, the two have collided, the following solutions can be considered.

One way is that when the network device pre-configures the PEI MO and the MO of the paging PDCCH, it is pre-specified that no time unit is the same in the time domain resources occupied by the two, that is, the collision is avoided in the configuration.

Since the priority of sending the paging PDCCH on the PO MO is higher than that of sending the PEI, the network device preferentially sends the paging PDCCH corresponding to the PO MO on the time domain resource 1501. Therefore, another way is to delay the MO that sends the PEI to the second time domain resource. The second time domain resource is the first available MO after the time domain resource 1501. The available MO is determined in advance by the MO period and offset. The position determined by the shift is determined, and the time domain resource where the MO is located does not overlap with the time domain resource where the second information is located, where the second information may be SSB, information with a higher priority than the first information, or the beam direction of the first information. Different paging PDCCH etc.

If the MO of the later delayed PEI is not suitable, for example, the time domain position of the next available MO is located after the paging PDCCH sent to the terminal device, then the network device may not send the PEI at the original time domain position, It is agreed with the terminal device in advance that when no PEI is received, the terminal device needs to receive the paging PDCCH on the next PO by default.

1303. The terminal device detects the first information on the second time domain resource.

The terminal device may determine the time domain position for detecting the first information according to the relevant parameters for sending the first information configured by the network device. When the terminal device determines that the time domain position where the PEI is detected is in conflict with the time domain position where the POMO is located, it can be processed according to the agreement with the network device. That is, the terminal device can correspondingly detect the PEI on the next available time domain resource, that is, the terminal device detects the first information on the second time domain resource; or the paging PDCCH sent on the next PO by default carries a message sent to the terminal device. paging, the paging PDCCH is received on this PO and parsed.

In the embodiment of the present application, considering that the first information may conflict with other information on time domain resources, sending or detecting PEI on different time domain resources, or not sending PEI and processing it according to the default rules, can avoid due to The situation that the first information cannot be sent or detected normally due to the collision of beam directions, and at the same time, in the case that there is no paging PDCCH sent to the terminal equipment or terminal equipment group in the first PO, the terminal equipment can be prevented from being woken up all the time. resulting power consumption.

The technical solutions provided by the communication methods of the embodiments of the present application are described in detail above with reference to FIGS. 1 to 15 , and the communication apparatuses provided by the embodiments of the present application are described below with reference to FIGS. 16 to 18 .

FIG. 16 is a schematic block diagram of an apparatus for paging provided by an embodiment of the present application. The apparatus 1600 includes a transceiver unit 1601 and a processing unit 1602 . The transceiver unit can also be divided into a receiving unit and a sending unit, which respectively perform operations related to receiving and sending, which are not limited here.

In a possible design, the apparatus 1600 may correspond to the terminal device in the above method embodiment, for example, may be the terminal device in the method embodiment, or a chip configured in the terminal device.

Specifically, the transceiver unit 1601 may be configured to receive first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO; the processing unit 1602 uses In detecting the first information in the first time window, the first information is used to indicate that the first PO carries paging data or does not carry paging data, the first time window is located after the first time slot, the first The time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

In one embodiment, the processing unit 1602 is specifically configured to detect the first information on a first time domain resource within the first time window, where the first time domain resource belongs to at least one preconfigured time domain resource.

In another embodiment, the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or, the start position of the first time window and the first SS The relative positions between the end positions of the bursts are preconfigured.

In another embodiment, the transceiver unit 1601 is further configured to receive second indication information, where the second indication information is used to indicate the end position of the first time window or the length of the first time window.

In another embodiment, the first time domain resource does not overlap with time domain resources occupied by at least one of the following items: SSB, information with a higher priority than the first information, and a beam carrying the first information PO for paging data with different directions.

In another embodiment, when the first time domain resource and the time domain resource occupied by the second information do not overlap, the processing unit 1602 is specifically configured to detect the first information on the first time domain resource, the second information The information is one of the following: SSB, information with higher priority than the first information, PO carrying paging data with a different beam direction from the first information.

In another embodiment, when the first time domain resource overlaps with the time domain resource occupied by the second information, the processing unit 1602 is specifically configured to detect the second information.

In another embodiment, when the first time domain resource and the time domain resource occupied by the second information overlap, the processing unit 1602 is specifically configured to detect the first information in the second time domain resource, the second time domain The domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, and the second time domain position does not overlap with the time domain resource occupied by the second information.

In another embodiment, when the first time domain resource and the time domain resource occupied by the second information overlap, the processing unit 1602 is specifically configured to detect the PO corresponding to the first information.

In another possible design, the apparatus 1600 may correspond to the terminal device in the above method embodiment, for example, may be the terminal device in the method embodiment, or a chip configured in the terminal device.

Specifically, the transceiver unit 1601 is used to receive first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO; the processing unit 1602 is used for First information is detected on the third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located at the beginning of the first SS burst After the starting position, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: synchronization signal block SSB, information with a higher priority than the first information, carrying PO of paging data whose beam direction is different from that of the first information beam direction corresponding to the terminal device.

FIG. 17 is a schematic block diagram of another apparatus for paging provided by an embodiment of the present application. As shown in the figure, the communication device 1700 may include a transceiver unit 1701 .

In a possible design, the communication apparatus 1700 may correspond to the network device in the above method embodiment.

Specifically, the transceiver unit 1701 is configured to send first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO; the transceiver unit 1701 also It is used to send the first information in the first time window, the first information is used to indicate that the first PO carries paging data or does not carry paging data, the first time window is located after the first time slot, and the first time window is located after the first time slot. A time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.

In one embodiment, the transceiver unit 1701 is specifically configured to send the first information on a first time domain resource within the first time window, where the first time domain resource belongs to at least one preconfigured time domain resource.

In another embodiment, the transceiver unit 1701 is further configured to send second indication information, where the second indication information is used to indicate the end position of the first time window or the length of the first time window.

In another embodiment, when the first time domain resource and the time domain resource occupied by the second information do not overlap, the transceiver unit 1701 is further configured to send the first information on the first time domain resource, the first information The second information is one of the following items: SSB, information with a higher priority than the first information, and PO carrying paging data with a beam direction different from that of the first information.

In another embodiment, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit is further configured to send the second information.

In another embodiment, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit 1701 is further configured to send the first information in the second time domain resource, the second time domain The domain resource is a time domain resource located after the first time domain resource in the at least one preconfigured time domain resource, and the second time domain position does not overlap with the time domain resource occupied by the second information.

In another embodiment, when the first time domain resource overlaps with the time domain resource occupied by the second information, the transceiver unit 1701 is further configured to send the PO corresponding to the first information.

In another embodiment, the transceiver unit 1701 is specifically configured to send at least one piece of first information within the first time window, and the beam direction of the at least one piece of first information is the same as the beam direction of at least one SSB in the first SS burst. Beam directions correspond one-to-one.

Specifically, the transceiver unit 1701 is used to send first indication information, where the first indication information is used to indicate the first SS burst, and the first SS burst is located before the first PO; the transceiver unit 1701 is also used for the third The first information is sent on the time domain resource, the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located after the start position of the first SS burst , the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: SSB, information with a priority higher than the first information, carrying beam direction corresponding to the terminal equipment The PO of the paging data with different beam directions of the first information.

FIG. 18 is a schematic block diagram of another apparatus for paging provided by an embodiment of the present application. The apparatus 1800 includes a memory 1801 and a processor 1802 .

The processor 1802 in the apparatus is configured to read and run the computer program stored in the memory, so as to execute the corresponding operations and/or processes performed by the terminal device in the communication method provided in this application. Optionally, the apparatus further includes a memory 1801, the memory 1801 and the processor 1802 are connected to the memory through a circuit or a wire, and the processor 1802 is configured to read and execute the computer program in the memory 1801. Further optionally, the apparatus may further include a communication interface 1803, and the processor 1802 is connected to the communication interface 1803. The communication interface 1803 is used to receive data and/or information to be processed, and the processor 1802 acquires the data and/or information from the communication interface 1803 and processes the data and/or information. The communication interface 1803 may be an input-output interface.

In the above embodiments, the processor may be a central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more of them for controlling the technology of the present application. Program execution of integrated circuits, etc. For example, the processor may be a digital signal processor device, a microprocessor device, an analog-to-digital converter, a digital-to-analog converter, or the like. The processor can distribute the control and signal processing functions of the terminal equipment or the network equipment among these devices according to their respective functions. In addition, the processor may have the functionality to operate one or more software programs, which may be stored in the memory. The functions of the processor may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

The memory may be read-only memory (ROM), other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types of storage devices that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, compact discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media, or other magnetic storage devices, or may also be capable of carrying or storing desired program code in the form of instructions or data structures and capable of Any other medium accessed by a computer, etc.

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

According to the methods provided by the embodiments of the present application, the present application provides a computer program product, including a computer program, which, when the computer program runs on a computer, enables the computer to execute the methods in the above method embodiments.

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

The network equipment in each of the above apparatus embodiments completely corresponds to the terminal equipment and the network equipment or terminal equipment in the method embodiments, and corresponding steps are performed by corresponding modules or units. For the sending step, other steps except sending and receiving may be performed by a processing unit (processor). For functions of specific units, reference may be made to corresponding method embodiments. The number of processors may be one or more.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware accomplish. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, 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 manners. For example, the apparatus 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 may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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

In the above embodiments, the functions of each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it can 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 (programs). When the computer program instructions (programs) are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. 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 downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, 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, data center, etc. that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.

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

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for paging, comprising:

receiving first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging occasion PO;

Detecting first information within a first time window, where the first information is used to indicate that the first PO carries a paging physical downlink control channel PDCCH or does not carry a paging PDCCH, and the first time window is at the first time After the slot, the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.
The method according to claim 1, wherein the detecting the first information within the first time window comprises:

The first information is detected on a first time domain resource within the first time window, where the first time domain resource belongs to at least one preconfigured time domain resource.
The method according to claim 1 or 2, wherein the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or,

The relative position between the start position of the first time window and the end position of the first SS burst is preconfigured.
The method according to any one of claims 1 to 3, wherein the method further comprises:

Second indication information is received, where the second indication information is used to indicate the end position of the first time window or the length of the first time window.
The method according to claim 2, wherein detecting the first information on the first time domain resource comprises:

When the first time domain resource and the time domain resource occupied by the second information do not overlap, the first information is detected on the first time domain resource, and the second information is one of the following items: SSB , information with a higher priority than the first information, and a paging PDCCH with a different beam direction from the first information.
The method according to claim 5, wherein the method further comprises:

The second information is received or detected when the first time domain resource overlaps with the time domain resource occupied by the second information.
The method according to claim 5, wherein the method further comprises:

When the first time domain resource overlaps with the time domain resource occupied by the second information, the first information is detected in the second time domain resource, and the second time domain resource belongs to the at least one preset The second time domain location does not overlap with the time domain resource occupied by the second information in the time domain resource located after the first time domain resource among the time domain resources.
The method according to claim 5, wherein the method further comprises:

When the first time domain resource overlaps with the time domain resource occupied by the second information, the PO corresponding to the first information is detected.
A method for paging, comprising:

receiving first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging occasion PO;

Detecting first information on a third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located in the first SS After the starting position of the burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: a synchronization signal block SSB, a priority higher than the Information of the first information, and a paging PDCCH with a different beam direction from the first information.
A method for paging, comprising:

sending first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO;

Sending first information within a first time window, where the first information is used to indicate that the first PO carries a paging physical downlink control channel PDCCH or does not carry a paging PDCCH, and the first time window is at the first time After the slot, the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.
The method according to claim 10, wherein the sending the first information within the first time window comprises:

The first information is sent on a first time domain resource within the first time window, where the first time domain resource belongs to at least one preconfigured time domain resource.
The method according to claim 10 or 11, wherein the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or,

The relative position between the start position of the first time window and the end position of the first SS burst is preconfigured.
The method according to any one of claims 10 to 12, wherein the method further comprises:

Send second indication information, where the second indication information is used to indicate the end position of the first time window or the length of the first time window.
The method according to claim 11, wherein the sending the first information within the first time window comprises:

When the first time domain resource and the time domain resource occupied by the second information do not overlap, the first information is sent on the first time domain resource, and the second information is one of the following items: SSB , information with a higher priority than the first information, and a paging PDCCH with a different beam direction from the first information.
The method of claim 14, wherein the method further comprises:

When the first time domain resource overlaps with the time domain resource occupied by the second information, the second information is sent.
The method of claim 14, wherein the method further comprises:

When the first time domain resource overlaps with the time domain resource occupied by the second information, the first information is sent in the second time domain resource, and the second time domain resource belongs to the at least one preset The second time domain location does not overlap with the time domain resource occupied by the second information in the time domain resource located after the first time domain resource among the time domain resources.
The method of claim 14, wherein the method further comprises:

When the first time domain resource overlaps with the time domain resource occupied by the second information, the PO corresponding to the first information is sent.
The method according to any one of claims 10 to 17, wherein the sending the first information within the first time window comprises:

At least one piece of first information is sent within the first time window, and a beam direction of the at least one piece of first information is in one-to-one correspondence with a beam direction of at least one SSB in the first SS burst.
A method for paging, comprising:

sending first indication information, where the first indication information is used to indicate the first SS burst, and the first SS burst is located before the first PO;

Send first information on a third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain resource is located in the first SS After the starting position of the burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: SSB, priority higher than the first information information, and a paging PDCCH with a different beam direction from the first information beam.
A device for paging, comprising:

a transceiver unit, where the transceiver unit is configured to receive first indication information, where the first indication information is used to indicate a first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO;

A processing unit, where the processing unit is configured to detect first information within a first time window, where the first information is used to indicate that the first PO carries a paging physical downlink control channel PDCCH or does not carry a paging PDCCH, so The first time window is located after the first time slot, and the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.
The apparatus according to claim 20, wherein the processing unit is specifically configured to detect the first information on a first time domain resource within the first time window, and the first time domain resource belongs to At least one preconfigured time domain resource.
The apparatus according to claim 20 or 21, wherein the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or,

The relative position between the start position of the first time window and the end position of the first SS burst is preconfigured.
A device for paging, comprising:

a transceiver unit, where the transceiver unit is configured to receive first indication information, where the first indication information is used to indicate a first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO;

a processing unit, the processing unit is configured to detect first information on a third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, the third The time domain resource is located after the start position of the first SS burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: a synchronization signal Block SSB, information with higher priority than said first information, paging PDCCH with different beam direction from said first information.
A device for paging, comprising:

a transceiver unit, where the transceiver unit is configured to send first indication information, where the first indication information is used to indicate the first synchronization information SS burst, and the first SS burst is located before the first paging opportunity PO;

The transceiver unit is further configured to send first information within the first time window, where the first information is used to indicate that the first PO carries the paging physical downlink control channel PDCCH or does not carry the paging PDCCH. A time window is located after the first time slot, and the first time slot is the time slot where the last synchronization signal block SSB in the first SS burst is located.
The apparatus according to claim 24, wherein the transceiver unit is specifically configured to send the first information on a first time domain resource within the first time window, and the first time domain resource belongs to At least one preconfigured time domain resource.
The apparatus according to claim 24 or 25, wherein the relative position between the start position of the first time window and the end position of the first time slot is preconfigured; or,

The relative position between the start position of the first time window and the end position of the first SS burst is preconfigured.
A device for paging, comprising:

a transceiver unit, where the transceiver unit is configured to send first indication information, where the first indication information is used to indicate a first SS burst, and the first SS burst is located before the first PO;

The transceiver unit is further configured to send first information on a third time domain resource, where the first information is used to indicate that the first PO carries paging data or does not carry paging data, and the third time domain The resource is located after the starting position of the first SS burst, the third time domain resource does not overlap with the time domain resource occupied by the second information, and the second information is one of the following items: SSB, priority Information higher than the first information, paging PDCCH with a different beam direction than the first information.
A communication device, characterized in that the communication device comprises a processor and a storage medium, wherein the storage medium stores instructions, and when the instructions are executed by the processor, the communication device executes the steps of claims 1 to 1. 9, or perform the method of any one of claims 10 to 19.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores a computer program, and when the computer program is executed, the communication device executes the method according to any one of claims 1 to 9. , or perform a method as claimed in any one of claims 10 to 19.
A computer program product, characterized in that the computer program product includes a computer program, which, when executed by a computer, causes the computer to execute the method according to any one of claims 1 to 9, or to execute A method as claimed in any one of claims 10 to 19.