Paging method, terminal device and network device

Abstract

A paging method, a terminal device and a network device, the method comprising: receiving, by the terminal device, a first physical downlink control channel (PDCCH) transmitted by the network device at a first paging occasion (PO), wherein the first PDCCH is used for scheduling transmission of N physical downlink shared channels (PDSCHs), wherein time domain resource positions occupied by the N PDSCHs are different, and each of the N PDSCHs is used for carrying a paging message of a terminal device of one type of N types, and N is greater than or equal to 2; and receiving, by the terminal device, a specific PDSCH of the N PDSCHs at a time domain resource position corresponding to the specific PDSCH, wherein the specific PDSCH is used for carrying a paging message of a terminal device of a specific type, and the specific type is a type of the terminal device.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and in particular to a paging method, a terminal device and a network device. BACKGROUND

[0002] The receiving of the paging message includes blindly detecting a physical downlink control channel (PDCCH) scrambled by a paging radio network temporary identifier (P-RNTI) at a paging occasion (PO), and receiving a physical downlink shared channel (PDSCH) scheduled by the PDCCH, wherein the paging message is transmitted in the PDSCH.

[0003] For a terminal in an unconnected state, the terminal needs to perform a synchronization operation using a synchronization signal burst (SS burst) before blindly detecting the PDCCH. The detection of the PDCCH has a lower requirement for synchronization accuracy, and the UE can complete the synchronization of the PDCCH using fewer SS bursts. The PDSCH has a higher requirement for synchronization accuracy. For a terminal using a paging discontinuous reception (DRX) mechanism, the terminal wakes up to start the synchronization operation in a plurality of SS burst periods before the PO. If the terminal does not detect the PDCCH at the PO, the terminal no longer receives the PDSCH and continues to return to a deep sleep state. For this case, the terminal actually does not need to wake up to start the synchronization in the plurality of SS burst periods before the PO, and therefore, how to reduce unnecessary synchronization operations of the terminal to save the power consumption of the UE is a problem to be solved. SUMMARY

[0004] Embodiments of the present application provide a paging method, a terminal device and a network device, which are beneficial to reduce unnecessary synchronization operations and further reduce the power consumption of the terminal.

[0005] In a first aspect, a paging method is provided, including: receiving, by a terminal device, a first physical downlink control channel (PDCCH) transmitted by a network device at a first paging occasion (PO), the first PDCCH being used to schedule transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource locations, each of the N PDSCHs is used to carry a paging message of a terminal device of one of N types, and N≥2; and receiving, by the terminal device, a specific PDSCH of the N PDSCHs at a time domain resource location corresponding to the specific PDSCH, wherein the specific PDSCH is used to carry a paging message of a terminal device of a specific type, and the specific type is a type of the terminal device.

[0006] In a second aspect, a paging method is provided, including: transmitting, by a network device, a first physical downlink control channel (PDCCH) at a first paging occasion (PO), the first PDCCH being used to schedule transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource locations, each of the N PDSCHs is used to carry a paging message of a terminal device of one of N types, and N≥2.

[0007] In a third aspect, a terminal device is provided, configured to perform the method in the first aspect or any possible implementation manner of the first aspect. Specifically, the terminal device includes units configured to perform the method in the first aspect or any possible implementation manner of the first aspect.

[0008] In a fourth aspect, a network device is provided, configured to perform the method in the second aspect or any possible implementation manner of the second aspect. Specifically, the network device includes units configured to perform the method in the second aspect or any possible implementation manner of the second aspect.

[0009] In a fifth aspect, a terminal device is provided, including: a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the first aspect or any implementation manner thereof.

[0010] In a sixth aspect, a network device is provided, including: a processor and a memory. The memory is configured to store a computer program, and the processor is configured to invoke and run the computer program stored in the memory to perform the method in the second aspect or any implementation manner thereof.

[0011] In a seventh aspect, a chip is provided, configured to implement the method in any one of the first aspect to the second aspect or any implementation manner thereof.

[0012] In particular, the chip comprises a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the method in any one of the first aspect to the second aspect or the implementation manner thereof.

[0013] An eighth aspect provides a computer readable storage medium for storing a computer program, which causes a computer to perform the method in any one of the first aspect to the second aspect or the implementation manner thereof.

[0014] A ninth aspect provides a computer program product comprising computer program instructions, which causes a computer to perform the method in any one of the first aspect to the second aspect or the implementation manner thereof.

[0015] A tenth aspect provides a computer program, which causes a computer to perform the method in any one of the first aspect to the second aspect or the implementation manner thereof when the computer program is run on the computer.

[0016] Based on the above technical solution, the network device can schedule different types of terminal devices to receive corresponding PDSCHs at different time domain resource locations, so that different types of terminal devices can receive PDSCHs for paging the terminal of this type at different time domain resource locations, thereby achieving flexible scheduling of different types of terminals. For example, for power saving terminals, the corresponding PDSCH can be received at a time domain resource location offset from the PDCCH by a larger amount, so that the power saving terminal can perform synchronization operations in the time gap between the PDSCH and the PDCCH, thereby reducing unnecessary synchronization operations caused by waking up in advance for synchronization, and reducing terminal power consumption. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.

[0018] Figure 2 is a schematic diagram of a paging method provided by an embodiment of the present application.

[0019] Figure 3 is an example of a paging method according to an embodiment of the present application.

[0020] Figure 4 is another example of a paging method according to an embodiment of the present application.

[0021] Figure 5 is a schematic diagram of another paging method provided by an embodiment of the present application.

[0022] Figure 6 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

[0023] Figure 7 is a schematic block diagram of a network device provided by an embodiment of the present application.

[0024] Figure 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.

[0025] Figure 9 is a schematic block diagram of a chip provided by an embodiment of the present application.

[0026] Figure 10 is a schematic block diagram of a communication system provided by an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative labor on the basis of the embodiments in the present application shall fall within the scope of the present application.

[0028] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems, etc.

[0029] Generally, the traditional communication system supports a limited number of connections, which is easy to implement. However, with the development of communication technology, the mobile communication system will not only support the traditional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0030] Optionally, the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) network deployment scenario.

[0031] Optionally, the communication system in the embodiments of the present application can be applied to an unlicensed spectrum, which can also be regarded as a shared spectrum, or can be applied to a licensed spectrum, which can also be regarded as a non-shared spectrum.

[0032] The embodiments of the present application combine network devices and terminal devices, wherein the terminal device can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device, etc.

[0033] The terminal device can be a station (STATION, ST) in a WLAN, can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (PLMN) network, etc.

[0034] In the embodiments of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0035] In the embodiments of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, etc.

[0036] By way of example and not limitation, in the embodiments of the present application, the terminal device can also be a wearable device. The wearable device can also be referred to as a wearable smart device, which is a general term for devices that are designed and developed by applying wearable technology to daily wear, such as glasses, gloves, watches, clothing, and shoes, etc. The wearable device is a portable device that is directly worn on the body or integrated into the clothes or accessories of the user. The wearable device is not only a hardware device, but also has powerful functions through software support and data interaction and cloud interaction. The general wearable smart device includes devices with full functions, large size, and the ability to realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and devices that focus on a certain type of application function and need to be used in cooperation with other devices, such as smart phones, such as various smart wristbands and smart jewelry for monitoring vital signs, etc.

[0037] In the embodiments of the present application, the network device can be a device for communicating with the mobile device. The network device can be an access point (AP) in a WLAN, a base transceiver station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0038] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0039] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0040] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0041] Figure 1 An exemplary embodiment shows a network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0042] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0043] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1The communication system 100 shown is an example, and the communication device can include network devices 110 and terminal devices 120 with communication functions, and the network devices 110 and the terminal devices 120 can be specific devices described above, which are not described herein again; the communication device can also include other devices in the communication system 100, such as network controllers, mobile management entities, and other network entities, which are not limited in the embodiments of the present application.

[0044] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein is only used to describe the association relationship of the associated objects. For example, A and / or B can represent three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " generally represents an "or" relationship between the associated objects.

[0045] It should be understood that the "indication" mentioned in the embodiments of the present application can be direct indication, indirect indication, or an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained by A directly; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0046] In the description of the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, or an associated relationship between the two, or an indication and being indicated, configuration and being configured, and the like.

[0047] Before introducing the paging method of the embodiments of the present application, the paging mechanism of the NR system is first introduced.

[0048] The main function of paging is to enable the network device to page the UE through a paging message when the UE is in a radio resource control (RRC) idle (IDLE) state or an RRC inactive (INACTIVE) state, or to notify the UE of system message changes or earthquake tsunami / public warning information (for all RRC states of the UE, including the connected state) through a short message.

[0049] For a UE in RRC_IDLE or RRC_INACTIVE state, since there is no other data communication between the UE and the network, in order to save power of the terminal, the UE can discontinuously monitor the paging channel, that is, adopt paging discontinuous reception (Discontinuous Reception, DRX) mechanism. Under the paging DRX mechanism, the UE only needs to monitor paging during a paging occasion (PO) in each DRX cycle.

[0050] Optionally, the PO is a series of PDCCH monitoring occasions, each of which can include one or more time slots. Specifically, in one DRX cycle, the terminal device can listen to the PDCCH on the PO on the paging radio frame (Paging Frame, PF). The PF can refer to a radio frame, for example, fixed 10ms, which can contain one or more POs, or the starting position of one or more POs.

[0051] Optionally, the cycle of paging DRX is determined by the common cycle in the system broadcast and the dedicated cycle configured in the high layer signaling (such as Non-Access Stratum (NAS) signaling), for example, the UE can take the minimum cycle of the two as the paging cycle.

[0052] From the perspective of the network, there can be multiple POs in a paging DRX cycle, and the PO position at which the UE monitors the PDCCH is related to the ID of the UE. The PF and PO at which a certain UE monitors the PDCCH in a paging DRX cycle can be determined in the following manner.

[0053] For example, the system frame number (SFN) number of the PF is determined by the following formula:

[0054] (SFN+PF_offset)mod T=(T / N)*(UE_ID mod N)

[0055] The number Index(i_s) of the PO in a PF is determined by the following formula:

[0056] i_s=floor(UE_ID / N)mod Ns

[0057] T represents a DRX cycle in which the UE receives the paging. In some implementations, the network can broadcast 1 default DRX cycle, and if the high layer of the network device, for example, the RRC layer, configures a UE-specific DRX cycle for the UE, the UE can take the minimum of the network-broadcast DRX cycle and the high-layer-configured UE-specific DRX cycle as the DRX cycle of the UE. If the high layer of the network device does not configure a UE-specific DRX cycle for the UE, the UE can take the network-broadcast DRX cycle as the DRX cycle of the UE.

[0058] N represents the number of PFs contained in one DRX cycle;

[0059] Ns represents the number of POs contained in one PF;

[0060] PF_offset represents a time-domain offset for determining a PF;

[0061] UE_ID, for example, can be 5G-S-TMSI mod 1024, where 5G-S-TMSI is a 5G shortened temporary mobile subscriber identity (TMSI).

[0062] The reception of the paging message includes blind detection of a physical downlink control channel (PDCCH) scrambled by a paging radio network temporary identifier (P-RNTI), and reception of a physical downlink shared channel (PDSCH) scheduled by the PDCCH. The paging message is transmitted in (or carried by) the PDSCH. The network indicates the time-frequency resource location of the corresponding PDSCH through the PDCCH. The slot in which the PDSCH is located is determined by the slot offset value k0 of the PDSCH relative to the PDCCH. The value range of k0 may, for example, be 0-32 slots.

[0063] For a UE in non-connected state, the UE also needs to perform synchronization operation with SS burst before blind detection of PDCCH. The detection of PDCCH requires less synchronization accuracy, and the UE can perform PDCCH synchronization with less SS burst. The PDSCH requires more synchronization accuracy, and for a UE with good channel quality (e.g., high SINR), the UE can perform PDSCH synchronization with less SS burst, while for a UE with poor channel quality (e.g., low SINR), the UE can perform PDSCH synchronization with more SS burst.

[0064] The period of SS burst is usually configured by network device, for example, the period of SS burst can be 5ms, 10ms, 20ms, 40ms, 80ms or 160ms. Since the period of SS burst needs to be larger than the time interval between PDSCH and PDCCH, the UE needs to perform synchronization for PDSCH before blind detection of PDCCH. That is, the UE in deep sleep state needs to wake up and start synchronization operation in multiple SS burst periods before PO. In one case, if the UE detects PDCCH in the PO corresponding to the UE, the UE continues to receive PDSCH based on the indication of PDCCH. In another case, if the UE does not detect PDCCH in the PO corresponding to the UE, the UE does not receive PDSCH and continues to return to deep sleep state.

[0065] For the above-mentioned second case, since the UE does not need to receive PDSCH, the UE actually does not need to wake up and start synchronization in multiple SS burst periods before PO. How to reduce unnecessary synchronization operation of the UE to save UE power consumption is a problem to be solved.

[0066] Figure 2 A schematic flowchart of a paging method 200 is provided for embodiments of the present application. The method 200 can be performed by a terminal device in a communication system as shown in FIG. 1, and the method 200 can include at least part of the following contents as shown in FIG. 2. Figure 1 The method 200 can include at least part of the following contents as shown in FIG. 2. Figure 2 The method 200 can include at least part of the following contents as shown in FIG. 2.

[0067] S210, receiving, by the terminal device, a first physical downlink control channel (PDCCH) transmitted by the network device at a first paging occasion (PO), wherein the first PDCCH is used to schedule transmission of N physical downlink shared channels (PDSCHs), the N PDSCHs occupy different time domain resource locations, each of the N PDSCHs is used to carry a paging message of a terminal device of one type of N types, and N≥2.

[0068] S220, receiving, by the terminal device, a specific PDSCH of the N PDSCHs at a time domain resource location corresponding to the specific PDSCH, wherein the specific PDSCH is used to carry a paging message of a terminal device of a specific type, and the terminal device is of the specific type.

[0069] Optionally, the first PO can be implemented according to the description of the PO above, which is not repeated here for brevity.

[0070] Optionally, in some embodiments of the present application, the first PDCCH is a PDCCH scrambled by a P-RNTI, and the first PDCCH is used to schedule a PDSCH carrying a paging message.

[0071] In the embodiments of the present application, the PDCCH used to schedule a paging message can also be referred to as a paging PDCCH, that is, the first PDCCH can be a paging PDCCH, and the PDSCH used to carry a paging message can be referred to as a paging PDSCH.

[0072] In the embodiments of the present application, the first PDCCH is used to schedule transmission of a plurality of PDSCHs, wherein the plurality of PDSCHs occupy different time domain resource locations. The plurality of PDSCHs are used to carry paging messages of terminals of a plurality of types, wherein each PDSCH is used to carry a paging message of terminals of one type.

[0073] That is, the network device can page a plurality of types of terminal devices through one PDCCH, and different types of terminals can receive corresponding PDSCHs according to their own types to obtain paging messages. In other words, the first PDCCH can schedule different types of terminals to receive corresponding PDSCHs at different time domain resource locations.

[0074] Optionally, in some embodiments, the first PDCCH can include scheduling indication information, which is used to indicate whether the first PDCCH schedules transmission of one PDSCH or transmission of the N PDSCHs.

[0075] For the first PDCCH scheduling the transmission of two PDSCHs, the scheduling indication information can be used to indicate that the first PDCCH schedules the transmission of one PDSCH or the transmission of two PDSCHs, or whether the transmission of a second PDSCH is scheduled.

[0076] Optionally, in some embodiments, the types of terminals can be divided according to the power saving needs of the terminal devices, the performance of the terminal devices, for example, the quality of channel quality, the capability of the terminal devices, for example, the standby capability of the terminal, and the like, and the application is not limited thereto. As an example, the terminal devices can be divided into power saving terminals and non-power saving terminals according to whether the terminal devices have power saving needs. As another example, the terminal devices can be divided into non-power saving terminals, power saving terminals with good channel quality, and power saving terminals with poor channel quality, according to whether the terminal devices have power saving needs and the channel quality of the terminal devices, and the like, and the application is not limited thereto.

[0077] In the embodiments of the application, different types of terminal devices can receive corresponding PDSCHs at different time domain resource locations. That is, the time domain resource locations of the PDSCHs of different types of terminal devices are different relative to the time domain resource location of the first PDCCH.

[0078] For example, for non-power saving terminals, a longer time can be advanced before the PO to wake up for synchronization, so the non-power saving terminals can complete synchronization for PDSCHs before blind detection of the first PDCCH, that is, after receiving the first PDCCH, no synchronization operation needs to be performed again, and therefore, the offset between the time domain resource location of the corresponding PDSCH and the time domain resource location of the first PDCCH can be configured to be small.

[0079] For example, for power saving terminals, if synchronization for PDSCHs is completed before blind detection of the first PDCCH, since the terminal device does not need to receive PDSCHs again in the case where the first PDCCH is not detected, the terminal device enters a sleep state again, resulting in unnecessary synchronization operations and increasing the power consumption of the terminal. In this case, the offset between the time domain resource location of the corresponding PDSCH and the time domain resource location of the first PDCCH can be configured to be large, so that the terminal of this type can perform synchronization operations in the time gap between the PDSCH and the first PDCCH, thereby reducing unnecessary synchronization operations caused by waking up in advance for synchronization and reducing the power consumption of the terminal.

[0080] Optionally, in some embodiments, the first PDCCH comprises a time domain resource indication, the time domain resource indication being used to indicate a reference offset (denoted as k0), the reference offset being used to determine a time slot offset of a first PDSCH relative to the first PDCCH, wherein the first PDSCH is a PDSCH for a first transmission of the N PDSCHs, and the first PDSCH is used to carry a paging message of a terminal device of a first type in the N types.

[0081] Optionally, the terminal of the first type is a non-power saving terminal. After detecting the first PDCCH, the non-power saving terminal does not need to perform a synchronization operation, and thus the corresponding PDSCH can be transmitted first.

[0082] Optionally, time domain resource positions of the other PDSCHs in the N PDSCHs except the first PDSCH are determined according to the reference offset k0 and an offset adjustment (denoted as k0_offset), wherein the offset adjustment k0_offset is a time domain offset of the other PDSCHs relative to the first PDSCH.

[0083] In the embodiments of the present application, each of the other N-1 PDSCHs in the N PDSCHs except the first PDSCH uses a corresponding time domain offset to determine a time domain resource position of the PDSCH.

[0084] In some embodiments, the offset adjustment k0_offset can be an absolute time, for example, a symbol, a time slot, a subframe, etc., for example, 4 time slots, 3 subframes, etc.

[0085] In other embodiments, the unit of the offset adjustment can be K SS burst periods, wherein K is a positive integer. By additionally adding n SS burst periods between the PDSCH and the first PDCCH, for a power saving terminal, a synchronization operation can be performed in this period, i.e., the terminal does not need to wake up in advance to perform synchronization, and the power consumption of the terminal can be reduced.

[0086] In the following, a configuration manner of the offset adjustment of the other N-1 PDSCHs in the N PDSCHs except the first PDSCH is described.

[0087] Configuration manner 1

[0088] The terminal device is configured with N-1 offset adjustments, respectively corresponding to the other N-1 PDSCHs in the N PDSCHs except the first PDSCH, and time domain resource positions of the other N-1 PDSCHs are determined according to the reference offset and the corresponding offset adjustment.

[0089] That is, the PDSCH corresponding to the terminal device of the other type than the first type has a fixed offset relative to the first PDSCH. The terminal device can determine the offset adjustment amount k0_offset between the PDSCH corresponding to the terminal device of the type and the first PDSCH according to the type of the terminal device, and further take the sum of the k0_offset and the reference offset amount k0 as the offset of the PDSCH corresponding to the terminal device of the type relative to the first PDCCH.

[0090] The configuration mode 1 does not need to modify the format of the existing PDCCH downlink control information (DCI), and can better compatible with the existing technology.

[0091] Optionally, in some embodiments, the N types of terminal devices include power saving terminal devices and non-power saving terminal devices, the first PDSCH can be the PDSCH corresponding to the non-power saving terminal devices, and the power saving terminal devices can correspond to a second PDSCH, which is transmitted after the first PDSCH, and the second PDSCH has a fixed offset k0_offset relative to the first PDSCH.

[0092] Optionally, in some embodiments, the N types of terminal devices include power saving terminal devices and non-power saving terminal devices, the first PDSCH can be the PDSCH corresponding to the non-power saving terminal devices, and the power saving terminal devices can correspond to a second PDSCH, which is transmitted after the first PDSCH, and the second PDSCH has a fixed offset k0_offset relative to the first PDSCH.

[0093] Optionally, in some embodiments, the N-1 offset adjustment amounts k0_offset are configured by the network device, for example, the network device can configure the N-1 offset adjustment amounts through broadcast signaling and / or radio resource control (RRC) signaling, and the application is not limited thereto.

[0094] Optionally, in some embodiments, the N-1 offset adjustment amounts k0_offset can also be pre-configured or pre-defined. For example, a standard can define different types of terminal devices corresponding to different offset adjustment amounts, and the terminal device can pre-store the different types of terminal devices corresponding to different offset adjustment amounts. When determining the time domain resource position of the PDSCH, the terminal device can determine the pre-stored different types of terminal devices corresponding to different offset adjustment amounts according to the type of the terminal device, determine the target offset adjustment amount corresponding to the type, and further determine the time domain resource position of the PDSCH according to the target offset adjustment amount.

[0095] Configuration mode 2

[0096] The terminal device is configured with M offset adjustment amounts, and M≥N. The network device can dynamically indicate the target offset adjustment amount corresponding to the PDSCH used by different types of terminal devices.

[0097] In some embodiments, the M offset adjustment amounts k0_offset are configured by the network device, for example, the network device can configure the M offset adjustment amounts through broadcast signaling and / or radio resource control (RRC) signaling, and the present application is not limited thereto.

[0098] In some embodiments, the M offset adjustment amounts k0_offset can also be pre-configured or pre-defined. For example, a standard can define multiple offset adjustment amounts, and the terminal device can pre-store the multiple offset adjustment amounts. The network device can dynamically indicate which offset adjustment amount is used by different types of terminal devices.

[0099] Optionally, in some embodiments, the method 200 further includes:

[0100] The terminal device determines the target offset adjustment amount corresponding to each of the N-1 PDSCHs other than the first PDSCH according to the offset adjustment amount indication information of the network device, wherein the offset adjustment amount indication information is used to indicate the target offset adjustment amount corresponding to each of the N-1 PDSCHs in the M offset adjustment amounts.

[0101] Optionally, the offset adjustment amount indication information can be carried in any of the following downlink messages, downlink channels or downlink signaling, and the present application is not limited thereto. As an example, the offset adjustment amount indication information is carried in the first PDCCH, that is, the network device can indicate the information of the offset adjustment amount k0_offset when indicating the reference offset amount k0. This configuration mode 2 can realize dynamic configuration of the offset adjustment amount k0_offset, thereby realizing flexible scheduling of the network.

[0102] In some embodiments, the offset adjustment indication information indicates the target offset adjustment amount corresponding to the N-1 PDSCHs in the M offset adjustment amounts by bit mapping.

[0103] As an example, the N PDSCHs include a first PDSCH, a second PDSCH and a third PDSCH transmitted in sequence from front to back, the M offset adjustment amounts include 5 offset adjustment amounts, such as k0_offset0-k0_offset4, and the offset adjustment indication information can include 10 bits (b0-b9) for indicating the offset adjustment amounts corresponding to the two PDSCHs transmitted at the back.

[0104] As an implementation, b0-b4 are used to indicate which k0_offset in k0_offset0-k0_offset4 is used by the second PDSCH, and b5-b9 are used to indicate which k0_offset in the 5 k0_offset0-k0_offset4 is used by the third PDSCH. For example, a bit value of 0 indicates that the offset adjustment amount is not used, and a bit value of 1 indicates that the offset adjustment amount is used. If b0-b9 are 0000110000, it indicates that the second PDSCH uses k0_offset4 and the third PDSCH uses k0_offset0.

[0105] Optionally, in some embodiments of the present application, the method 200 further includes:

[0106] The terminal device sends a first message to the core network device, where the first message is used to inform the type of the terminal device.

[0107] In some embodiments, the core network device can be an Access and Mobility Management Function (AMF) entity, and of course can also be other core network devices, which are not limited in the present application.

[0108] Optionally, the first message can be any message or signaling exchanged between the core network device and the terminal device, which is not limited in the present application. As an example, the first message is a REGISTRATION REQUEST message. That is, the terminal device can inform the type of the terminal device in the process of registration or attach.

[0109] Taking the first message as the REGISTRATION REQUEST message, the terminal device can indicate the type of the terminal device by whether the REGISTRATION REQUEST message includes a terminal type indication field and / or the value of the terminal type indication field in the REGISTRATION REQUEST message.

[0110] Indication mode 1: indicating the type of the terminal device by whether the REGISTRATION REQUEST message includes a terminal type indication field.

[0111] For example, the REGISTRATION REQUEST message includes a terminal type indication field, indicating that the terminal device is a power saving terminal, and the REGISTRATION REQUEST message does not include a terminal type indication field, indicating that the terminal device is a non-power saving terminal.

[0112] Indication mode 2: indicating the type of the terminal device by the content of the terminal type indication field included in the REGISTRATION REQUEST message.

[0113] Optionally, the size of the terminal type indication field can be determined according to the number of types of terminal devices. If there are two types of terminal devices, the terminal type indication field can be 1 bit. If there are three types of terminal devices, the terminal type indication field can be 2 bits.

[0114] Taking N types of terminals including power saving terminals and non-power saving terminals as an example, the terminal type indication field takes a value of 1 to indicate that the terminal device is a power saving terminal, and the terminal type indication field takes a value of 0 to indicate that the terminal device is a non-power saving terminal. Alternatively, the terminal type indication field takes a value of 0 to indicate that the terminal device is a power saving terminal, and the terminal type indication field takes a value of 1 to indicate that the terminal device is a non-power saving terminal.

[0115] In particular, considering backward compatibility, for a terminal of a low version (e.g., R15 or R16), since this version does not support the paging DRX mechanism, the REGISTRATION REQUEST message sent by the terminal does not carry the terminal type indication field, and in this case, the terminal device is considered to be a non-power saving terminal. That is, when the core network device receives the REGISTRATION REQUEST message sent by the terminal device of the low version, the core network device can determine that the terminal device is a non-power saving terminal.

[0116] Further, after learning the type of the terminal device, the core network device can further send a second message to the access network device, i.e., the network device in the present application, the second message being used to notify the network device of the type of the terminal device.

[0117] Optionally, the second message can be any message or signaling exchanged between the core network and the access network, which is not limited in the present application. As an example, the second message is a paging message, i.e., the core network device can notify the access network device of the type of the terminal device when paging the terminal device.

[0118] The indication manner of indicating the type of the terminal through the paging message and the indication manner of indicating the type of the terminal through the registration request message are similar, and for brevity, details are not repeated here.

[0119] As a specific example, a terminal type indication field can be included in a paging DRX information element (Paging DRX IE) in the paging message to indicate the type of the terminal device.

[0120] Optionally, in some embodiments of the present application, the time domain resource sizes occupied by the N PDSCHs are the same.

[0121] Optionally, in some embodiments of the present application, the frequency domain resource positions occupied by the N PDSCHs are the same.

[0122] Optionally, in some embodiments of the present application, the N PDSCHs correspond to the same modulation and coding scheme (MCS) or transport block size (TBS).

[0123] In the following, the paging method according to the embodiments of the present application is described with reference to Figure 3 and Figure 4 , taking the AMF entity as an example, and taking the plurality of types of terminals to include power saving terminals and non-power saving terminals, but the present application is not limited thereto.

[0124] Embodiment One

[0125] In this embodiment one, the configuration manner of the offset adjustment amount is the configuration manner 1 described above.

[0126] S201, the terminal device informs the AMF entity whether it is a power saving terminal or a non-power saving terminal in the registration (or attach) process. For example, the terminal device can inform the type through a registration request message.

[0127] The specific indication manner is described with reference to the related description of the foregoing embodiments, and for brevity, details are not repeated here.

[0128] S202, the AMF entity sends a paging message to the network device (i.e., the base station), and indicates through the paging message whether the terminal being paged is a power saving terminal. As an example, a terminal type indication field can be included in a Paging DRX IE in the paging message to indicate whether the terminal device is a power saving terminal.

[0129] The specific indication manner is described with reference to the related description of the foregoing embodiments, and for brevity, details are not repeated here.

[0130] S203, the terminal device receives first configuration information of the network device, the first configuration information being used for configuring one k0_offset, the k0_offset being used for the power saving terminal to determine a time domain offset of a paging PDSCH relative to a paging PDCCH.

[0131] Optionally, the first configuration information can be configured through broadcast signaling and / or RRC dedicated signaling, or can also be configured through the paging PDCCH.

[0132] S204, for one PO, when the network device wants to page at least one terminal device mapped to the PO, the network sends a first PDCCH on the PO, the first PDCCH can schedule the transmission of two PDSCHs, including a first PDSCH and a second PDSCH, wherein the first PDSCH is used for paging of non-power saving terminals, and the second PDSCH is used for paging of power saving terminals.

[0133] Optionally, the first PDSCH and the second PDSCH satisfy at least one of the following:

[0134] The first PDSCH and the second PDSCH correspond to the same frequency domain resource position;

[0135] The first PDSCH and the second PDSCH correspond to different time domain resource positions (it can be understood as corresponding to different k0 values);

[0136] The first PDSCH and the second PDSCH correspond to the same time domain resource size;

[0137] The first PDSCH and the second PDSCH correspond to the same MCS or TBS;

[0138] The first PDSCH and the second PDSCH correspond to the same MCS or TBS.

[0139] Optionally, in some embodiments, the first PDCCH contains at least one of the following:

[0140] Frequency domain resource indication information, used for indicating the frequency domain resource position of the two PDSCHs;

[0141] Time domain resource indication, including k0_DCI value, used for indicating the time slot offset of the first PDSCH relative to the first PDCCH;

[0142] MCS indication, used for indicating the MCS adopted by the PDSCH.

[0143] Optionally, in some embodiments, the first PDCCH may further include scheduling indication information to indicate whether the first PDCCH schedules the transmission of the second PDSCH, or whether it schedules the transmission of two PDSCHs, or whether it schedules the transmission of a single PDSCH or the transmission of two PDSCHs.

[0144] Furthermore, when the scheduling instruction information indicates that the transmission of the second PDSCH has been scheduled, the terminal device will use the SS burst after the first PDCCH to perform synchronization operations and receive the second PDSCH, which is beneficial to the power saving of the terminal.

[0145] Optionally, in other embodiments, the network device may also indicate whether the first PDCCH has scheduled the second PDSCH by whether the first PDCCH includes a scheduling indication field. For example, if the first PDCCH includes a scheduling indication field, it indicates that the first PDCCH has scheduled the second PDSCH; or, if the first PDCCH does not include a scheduling indication field, it indicates that the first PDCCH has not scheduled the second PDSCH.

[0146] S205, at least one terminal device listening for paging messages on the PO can determine the time-frequency resource location for receiving the PDSCH according to the indication of the first PDCCH.

[0147] For example, the frequency domain resource location of the received PDSCH is determined based on the frequency domain resource indication in the first PDCCH.

[0148] For example, the time slot offset of the first transmitted PDSCH relative to the first PDCCH is determined based on the time domain resource indication in the first PDCCH.

[0149] like Figure 3 As shown, if the terminal device is a non-power-saving terminal, the k0_DCI indicated in the first PDCCH can be used as the time slot offset value K0_1 of the PDSCH relative to the first PDCCH, that is, K0_1 = k0_DCI, to further determine the reception time of the PDSCH, and then the PDSCH is received at that reception time.

[0150] If the terminal device is a power-saving terminal, the sum of k0_DCI and k0_offset indicated in the first PDCCH is used as the time-domain offset value K0_2 of PDSCH relative to the first PDCCH, that is, K0_2 = k0_DCI + k0_offset, to further determine the PDSCH reception time, and then the PDSCH is received at that reception time.

[0151] In the embodiments of this application, for a power-saving terminal, after receiving the PDCCH indicating paging, the SS burst during the time before receiving the PDSCH can be used to continue channel measurement and synchronization to ensure the reception performance of the PDSCH.

[0152] Example 2

[0153] The implementation of Example 2 is similar to that of Example 1, except that the configuration method of the offset adjustment amount k0_offset is the configuration method 2 described above.

[0154] In this second embodiment, in S203, the terminal device receives the second configuration information of the network device. The second configuration information is used to configure at least two k0_offsets. The at least two k0_offsets are used by the power-saving terminal to determine the time domain offset value of pagingPDSCH relative to paging PDCCH.

[0155] Optionally, the second configuration information can be configured via broadcast signaling and / or RRC-specific signaling.

[0156] In S204, in addition to the information described in Embodiment 1, the first PDCCH may also include offset adjustment indication information, which is used to indicate one of the at least two k0_offsets, denoted as k0_offset_DCI.

[0157] In S205, at least one terminal device listening to paging on the PO determines the time-frequency resource location of the received PDSCH according to the indication of the first PDCCH, and may also include determining the target offset adjustment amount corresponding to the second PDSCH according to the offset adjustment amount indication information in the first PDCCH.

[0158] like Figure 4 As shown, if the terminal device is a non-power-saving terminal, the k0_DCI indicated in the first PDCCH is used as the time slot offset value K0_1 of the PDSCH relative to the first PDCCH, that is, K0_1 = k0_DCI, to further determine the reception time of the PDSCH, so that the PDSCH can be received at that reception time.

[0159] If the terminal device is a power-saving terminal, the sum of k0_DCI and k0_offset_DCI indicated in the first PDCCH is used as the time-domain offset value K0_2 of PDSCH relative to the first PDCCH, that is, K0_2=k0_DCI+k0_offset_DCI, to further determine the PDSCH reception time, so that PDSCH can be received at that reception time.

[0160] For power saving terminals, after receiving the PDCCH indicating paging, channel measurement and synchronization can be continued using the SS burst in the time before receiving the PDSCH to ensure the reception performance of the PDSCH.

[0161] The paging method according to the embodiments of the present application is described in detail from the perspective of a terminal device, and the paging method according to another embodiment of the present application is described in detail from the perspective of a network device below. Figure 2 to Figure 4 The paging method according to the embodiments of the present application is described in detail from the perspective of a terminal device, and the paging method according to another embodiment of the present application is described in detail from the perspective of a network device below. Figure 5 The paging method according to the embodiments of the present application is described in detail from the perspective of a terminal device, and the paging method according to another embodiment of the present application is described in detail from the perspective of a network device below.

[0162] Figure 5 FIG. 3 is a schematic flowchart of a paging method 300 according to another embodiment of the present application, which can be performed by a network device in a communication system as shown in FIG. 1, and the method 300 includes the following steps. Figure 1 The method 300 includes the following steps. Figure 5 The method 300 includes the following steps.

[0163] S310, the network device transmits a first physical downlink control channel (PDCCH) at a first paging occasion (PO), the first PDCCH being used for scheduling transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource locations, and each of the N PDSCHs is used for carrying a paging message of a terminal device of one type of N types, and N≥2.

[0164] Optionally, in some embodiments, the first PDCCH includes a time domain resource indication, the time domain resource indication being used for indicating a reference offset, the reference offset being used for determining a time domain offset of a first PDSCH relative to the first PDCCH, wherein the first PDSCH is a PDSCH for transmission of a first type of terminal device of the N types.

[0165] Optionally, in some embodiments, the method 300 further includes:

[0166] The network device transmits first configuration information to the terminal device, the first configuration information including N-1 offset adjustment amounts, wherein the N-1 offset adjustment amounts correspond to N-1 PDSCHs other than the first PDSCH among the N PDSCHs, and the N-1 offset adjustment amounts are time domain offsets of the N-1 PDSCHs relative to the first PDSCH respectively.

[0167] Optionally, in some embodiments, the offset adjustment amount is in units of at least one synchronization signal burst period.

[0168] Optionally, in some embodiments, the N-1 offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

[0169] Optionally, in some embodiments, the method 300 further includes:

[0170] The network device sends offset adjustment amount indication information to the terminal device, the offset adjustment amount indication information being used to indicate target offset adjustment amounts corresponding to N-1 PDSCHs other than the first PDSCH among the N PDSCHs in M offset adjustment amounts, where M≥N.

[0171] Optionally, in some embodiments, the offset adjustment amount indication information is carried in the first PDCCH.

[0172] Optionally, in some embodiments, the M offset adjustment amounts are configured by the network device or are preconfigured.

[0173] Optionally, in some embodiments, the M offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

[0174] Optionally, in some embodiments, the network device is an access network device, and the method 300 further includes:

[0175] The network device receives a paging message sent by a core network device, the paging message being used to notify a type of the terminal device.

[0176] Optionally, in some embodiments, the method 300 further includes:

[0177] The network device determines the type of the terminal device according to whether the paging message includes a terminal type indication field and / or a value of the terminal type indication field in the paging message.

[0178] Optionally, in some embodiments, the N types include power saving terminals and non-power saving terminals.

[0179] Optionally, in some embodiments, the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH being transmitted after the first PDSCH, the first PDSCH being used to carry a paging message of the non-power saving terminal, and the second PDSCH being used to carry a paging message of the power saving terminal.

[0180] Optionally, in some embodiments, the first PDCCH further comprises scheduling indication information, the scheduling indication information being used to indicate that the first PDCCH schedules transmission of one PDSCH or transmission of the N PDSCHs.

[0181] Optionally, in some embodiments, the N PDSCHs satisfy at least one of the following:

[0182] The N PDSCHs occupy same time domain resource size;

[0183] The N PDSCHs occupy same frequency domain resource position;

[0184] The N PDSCHs correspond to same modulation and coding scheme (MCS);

[0185] The N PDSCHs correspond to same transport block size (TBS).

[0186] The method embodiments of the present application are described in detail above in combination with Figure 2 to Figure 5 The device embodiments of the present application are described in detail below in combination with Figure 6 to Figure 10 It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0187] Figure 6 A schematic block diagram of a terminal device 400 according to an embodiment of the present application is shown. As Figure 6 shown, the terminal device 400 comprises:

[0188] a communication unit 410, configured to receive a first physical downlink control channel (PDCCH) transmitted by a network device at a first paging occasion (PO), the first PDCCH being used to schedule transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource positions, and each of the N PDSCHs is used to carry a paging message of a terminal device of one type of N types, and N≥2; and

[0189] receive a specific PDSCH corresponding to a time domain resource position of the specific PDSCH, wherein the specific PDSCH is used to carry a paging message of a terminal device of a specific type, and the type of the terminal device is the specific type.

[0190] Optionally, in some embodiments, the first PDCCH comprises a time domain resource indication, the time domain resource indication being used to indicate a reference offset, the reference offset being used to determine a time slot offset of a first PDSCH relative to the first PDCCH, wherein the first PDSCH is a PDSCH for a first transmission of the N PDSCHs, and the first PDSCH is used to carry a paging message of a terminal device of a first type in the N types.

[0191] Optionally, in some embodiments, time domain resource positions of the other PDSCHs than the first PDSCH in the N PDSCHs are determined according to the reference offset and an offset adjustment, wherein the offset adjustment is a time domain offset of the other PDSCHs relative to the first PDSCH.

[0192] Optionally, in some embodiments, the offset adjustment is in units of at least one synchronization signal burst period.

[0193] Optionally, in some embodiments, the terminal device is configured with N-1 offset adjustments respectively corresponding to the other N-1 PDSCHs than the first PDSCH in the N PDSCHs, and time domain resource positions of the other N-1 PDSCHs are determined according to the reference offset and the corresponding offset adjustment.

[0194] Optionally, in some embodiments, the N-1 offset adjustments are configured by the network device or are pre-configured.

[0195] Optionally, in some embodiments, the N-1 offset adjustments are configured through broadcast signaling and / or radio resource control (RRC) signaling.

[0196] Optionally, in some embodiments, the terminal device is configured with M offset adjustments, and M≥N, and the terminal device 400 further comprises:

[0197] The processing unit 420 is configured to determine target offset adjustments respectively corresponding to the other N-1 PDSCHs than the first PDSCH in the N PDSCHs according to offset adjustment indication information of the network device, wherein the offset adjustment indication information is used to indicate target offset adjustments respectively corresponding to the other N-1 PDSCHs in the M offset adjustments.

[0198] Optionally, in some embodiments, the offset adjustment indication information indicates target offset adjustments respectively corresponding to the N-1 PDSCHs in the M offset adjustments through a bit mapping manner.

[0199] Optionally, in some embodiments, the offset adjustment amount indicates that information is carried in the first PDCCH.

[0200] Optionally, in some embodiments, the M offset adjustment amounts are configured by the network device or are pre-configured.

[0201] Optionally, in some embodiments, the M offset adjustment amounts are configured by broadcast signaling and / or radio resource control (RRC) signaling.

[0202] Optionally, in some embodiments, when the terminal device is of the first type, a time domain offset amount of the first PDSCH relative to the first PDCCH is the reference offset amount.

[0203] When the terminal device is of a second type, a PDSCH corresponding to the terminal device of the second type is a second PDSCH, and a time domain offset amount of the second PDSCH relative to the first PDCCH is the reference offset amount plus a first offset adjustment amount, where the first offset adjustment amount is an offset adjustment amount corresponding to the second PDSCH, and the second type is different from the first type.

[0204] Optionally, in some embodiments, the communication unit 410 is further configured to:

[0205] send, to a core network device, a first message, where the first message is used to notify a type of the terminal device.

[0206] Optionally, in some embodiments, the first message is a registration request message.

[0207] Optionally, in some embodiments, the terminal device indicates the type of the terminal device by whether a terminal type indication field is included in the first message and / or a value of the terminal type indication field in the first message.

[0208] Optionally, in some embodiments, the N types include power saving terminal and non-power saving terminal.

[0209] Optionally, in some embodiments, the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH is transmitted after the first PDSCH, the first PDSCH is used to carry a paging message of the non-power saving terminal, and the second PDSCH is used to carry a paging message of the power saving terminal.

[0210] Optionally, in some embodiments, the first PDCCH further includes scheduling indication information, where the scheduling indication information is used to indicate that the first PDCCH schedules transmission of one PDSCH or transmission of the N PDSCHs.

[0211] Optionally, in some embodiments, the N PDSCHs satisfy at least one of the following:

[0212] The N PDSCHs occupy the same time domain resource size;

[0213] The N PDSCHs occupy the same frequency domain resource position;

[0214] The N PDSCHs correspond to the same modulation and coding scheme (MCS);

[0215] The N PDSCHs correspond to the same transport block size (TBS).

[0216] Optionally, in some embodiments, the communication unit can be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip. The processing unit can be one or more processors.

[0217] It should be understood that the terminal device 400 according to the embodiments of the present application can correspond to the terminal device in the method embodiments of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively used to implement the corresponding process of the terminal device in the method 200 shown in the figure, and for brevity, will not be repeated here. Figure 2 The method 200 shown in the figure is a method for transmitting a paging message to a terminal device in a wireless communication system.

[0218] Figure 7 is a schematic block diagram of a network device according to an embodiment of the present application. Figure 7 The network device 500 shown in the figure includes:

[0219] The communication unit 510 is configured to transmit a first physical downlink control channel (PDCCH) at a first paging occasion (PO), wherein the first PDCCH is used to schedule transmission of N physical downlink shared channels (PDSCHs), the N PDSCHs occupy different time domain resource positions, each of the N PDSCHs is used to carry a paging message of a terminal device of one type of N types, and N≥2.

[0220] Optionally, in some embodiments, the first PDCCH includes a time domain resource indication, the time domain resource indication is used to indicate a reference offset, the reference offset is used to determine a time slot offset of a first PDSCH relative to the first PDCCH, the first PDSCH is a PDSCH for the first transmission of the N PDSCHs, and the first PDSCH is used to carry a paging message of a terminal device of a first type of the N types.

[0221] Optionally, in some embodiments, the communication unit 510 is further configured to:

[0222] transmit, to the terminal device, first configuration information, the first configuration information comprising N-1 offset adjustment amounts, wherein the N-1 offset adjustment amounts correspond to N-1 PDSCHs other than the first PDSCH among the N PDSCHs, and the N-1 offset adjustment amounts are time domain offset amounts of the N-1 PDSCHs relative to the first PDSCH respectively.

[0223] Optionally, in some embodiments, the offset adjustment amount is in units of at least one synchronization signal burst period.

[0224] Optionally, in some embodiments, the N-1 offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

[0225] Optionally, in some embodiments, the communication unit 510 is further configured to:

[0226] transmit, to the terminal device, offset adjustment amount indication information, the offset adjustment amount indication information being used to indicate target offset adjustment amounts corresponding to the N-1 PDSCHs other than the first PDSCH among the N PDSCHs in M offset adjustment amounts, wherein M ≥ N.

[0227] Optionally, in some embodiments, the offset adjustment amount indication information is carried in the first PDCCH.

[0228] Optionally, in some embodiments, the M offset adjustment amounts are configured by the network device or are preconfigured.

[0229] Optionally, in some embodiments, the M offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

[0230] Optionally, in some embodiments, the network device is an access network device, and the communication unit 510 is further configured to:

[0231] receive a paging message sent by a core network device, the paging message being used to notify a type of the terminal device.

[0232] Optionally, in some embodiments, the network device 500 further comprises:

[0233] a processing unit configured to determine the type of the terminal device according to whether the paging message comprises a terminal type indication field and / or a value of the terminal type indication field in the paging message.

[0234] Optionally, in some embodiments, the N types comprise power saving terminals and non-power saving terminals.

[0235] Optionally, in some embodiments, the N PDSCHs include a first PDSCH and a second PDSCH, with the second PDSCH transmitted after the first PDSCH. The first PDSCH is used to carry the paging message of the non-power-saving terminal, and the second PDSCH is used to carry the paging message of the power-saving terminal.

[0236] Optionally, in some embodiments, the first PDCCH further includes scheduling indication information, which is used to instruct the first PDCCH to schedule the transmission of one PDSCH or the transmission of the N PDSCHs.

[0237] Optionally, in some embodiments, the N PDSCHs satisfy at least one of the following:

[0238] The N PDSCHs occupy the same amount of time-domain resources;

[0239] The frequency domain resources occupied by the N PDSCHs are in the same location;

[0240] The N PDSCHs correspond to the same modulation and coding scheme (MCS);

[0241] The N PDSCHs correspond to the same transport block size (TBS).

[0242] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0243] It should be understood that the network device 500 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 5 The corresponding procedures for network devices in method 300 shown are not described in detail here for the sake of brevity.

[0244] Figure 8 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. Figure 8 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0245] Optionally, such as Figure 8 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0246] The memory 620 can be a separate device independent of the processor 610, or can be integrated in the processor 610.

[0247] Optionally, as shown in the figure, Figure 8 The communication device 600 can further include a transceiver 630, which can be controlled by the processor 610 to communicate with other devices, specifically, to send information or data to other devices, or receive information or data sent by other devices.

[0248] The transceiver 630 can include a transmitter and a receiver. The transceiver 630 can further include an antenna, and the number of antennas can be one or more.

[0249] Optionally, the communication device 600 can be a network device of the embodiments of the present application, and the communication device 600 can implement the corresponding processes in the various methods of the embodiments of the present application implemented by the network device. For the sake of brevity, details are not repeated here.

[0250] Optionally, the communication device 600 can be a mobile terminal / terminal device of the embodiments of the present application, and the communication device 600 can implement the corresponding processes in the various methods of the embodiments of the present application implemented by the mobile terminal / terminal device. For the sake of brevity, details are not repeated here.

[0251] Figure 9 The chip 700 shown in the figure includes a processor 710, which can call and run computer programs from the memory to implement the methods in the embodiments of the present application. Figure 9 The chip 700 shown in the figure includes a processor 710, which can call and run computer programs from the memory to implement the methods in the embodiments of the present application.

[0252] Optionally, as shown in the figure, Figure 9 The chip 700 can further include a memory 720. The processor 710 can call and run computer programs from the memory 720 to implement the methods in the embodiments of the present application.

[0253] The memory 720 can be a separate device independent of the processor 710, or can be integrated in the processor 710.

[0254] Optionally, the chip 700 can further include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, to obtain information or data sent by other devices or chips.

[0255] Optionally, the chip 700 can further include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0256] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding procedures implemented by the network device in the various methods of the embodiments of the present application. For brevity, details are not described herein.

[0257] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding procedures implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For brevity, details are not described herein.

[0258] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system, or a system on chip, etc.

[0259] Figure 10 is a schematic block diagram of a communication system 900 provided by the embodiments of the present application. As shown in the figure, the communication system 900 includes a terminal device 910 and a network device 920. Figure 10

[0260] The terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above methods, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above methods. For brevity, details are not described herein.

[0261] It should be understood that the processor of the embodiments of the present application can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method embodiments can be completed by integrated logic circuits or instructions in the form of software in the processor. The processor mentioned above can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. Each method, step and logic block disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory, an electrically erasable programmable memory, a register, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and combines the hardware to complete the steps of the above method. ​

[0262] It is to be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0263] It should be understood that the above-mentioned memory is exemplary but not limiting, for example, the memory in the embodiments of the present application can also be static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate synchronous dynamic RAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synch link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not limited to, these and any other suitable types of memory.

[0264] The embodiment of the present application further provides a computer readable storage medium for storing the computer program.

[0265] Optionally, the computer readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0266] Optionally, the computer readable storage medium can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program makes the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0267] The embodiment of the present application further provides a computer program product comprising computer program instructions.

[0268] Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0269] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program instructions make the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0270] The embodiment of the present application further provides a computer program.

[0271] Optionally, the computer program can be applied to the network device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the network device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0272] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiment of the present application, and when the computer program runs on the computer, makes the computer execute the corresponding process realized by the mobile terminal / terminal device in the various methods of the embodiment of the present application, which will not be repeated here for the sake of brevity.

[0273] Those skilled in the art can clearly understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0274] Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0275] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0276] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0277] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0278] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can 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: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0279] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A paging method, characterized by, The method comprises: A terminal device receives a first physical downlink control channel (PDCCH) transmitted by a network device at a first paging occasion (PO), wherein the first PDCCH is used for scheduling transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource positions, and each of the N PDSCHs is used for carrying a paging message of a terminal device of one type of N types, and N≥2; The terminal device receives a specific PDSCH among the N PDSCHs at a time domain resource position corresponding to the specific PDSCH, wherein the specific PDSCH is used for carrying a paging message of a terminal device of a specific type, and the type of the terminal device is the specific type. The N types include power saving terminal devices and non-power saving terminal devices, the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH is transmitted after the first PDSCH, the first PDSCH is used for carrying a paging message of the non-power saving terminal device, and the second PDSCH is used for carrying a paging message of the power saving terminal device.

2. The method of claim 1, wherein, The first PDCCH includes time domain resource indication, the time domain resource indication is used for indicating a reference offset, and the reference offset is used for determining a time slot offset of a first PDSCH relative to the first PDCCH, wherein the first PDSCH is a first transmitted PDSCH among the N PDSCHs, and the first PDSCH is used for carrying a paging message of a terminal device of a first type among the N types.

3. The method of claim 2, wherein, The time domain resource positions of the other PDSCHs among the N PDSCHs except the first PDSCH are determined according to the reference offset and an offset adjustment amount, wherein the offset adjustment amount is a time domain offset of the other PDSCHs relative to the first PDSCH.

4. The method of claim 3, wherein, The unit of the offset adjustment amount is at least one synchronization signal burst period.

5. The method according to claim 3 or 4, characterized in that, The terminal device is configured with N-1 offset adjustment amounts corresponding to N-1 PDSCHs among the N PDSCHs except the first PDSCH, and the time domain resource positions of the N-1 PDSCHs are determined according to the reference offset and the corresponding offset adjustment amounts.

6. The method of claim 5, wherein, The N-1 offset adjustment amounts are configured by the network device or are preconfigured.

7. The method of claim 6, wherein, The N-1 offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

8. The method of claim 3 or 4, wherein, The terminal device is configured with M offset adjustment amounts, and M≥N, and the method further comprises: The terminal device determines target offset adjustment amounts corresponding to N-1 PDSCHs among the N PDSCHs except the first PDSCH according to offset adjustment amount indication information of the network device, wherein the offset adjustment amount indication information is used for indicating target offset adjustment amounts corresponding to the N-1 PDSCHs in the M offset adjustment amounts, respectively.

9. The method of claim 8, wherein, The offset adjustment amount indication information indicates, by bit mapping, target offset adjustment amounts corresponding to the N-1 PDSCHs in the M offset adjustment amounts.

10. The method according to claim 8 or 9, characterized in that, The offset adjustment amount indication information is carried in the first PDCCH.

11. The method of claim 8, wherein, The M offset adjustment amounts are configured by the network device or are preconfigured.

12. The method of claim 11, wherein, The M offset adjustment amounts are configured by broadcast signaling and / or radio resource control (RRC) signaling.

13. The method of claim 3, wherein, When the terminal device is of the first type, a time domain offset of the first PDSCH relative to the first PDCCH is the reference offset. When the terminal device is of a second type, a PDSCH corresponding to the terminal device of the second type is a second PDSCH, a time domain offset of the second PDSCH relative to the first PDCCH is the reference offset plus a first offset adjustment amount, the first offset adjustment amount is an offset adjustment amount corresponding to the second PDSCH, and the second type is different from the first type.

14. The method of claim 1, wherein, The method further includes: The terminal device sends a first message to a core network device, where the first message is used to notify a type of the terminal device.

15. The method of claim 14, wherein, The first message is a registration request message.

16. The method according to claim 14 or 15, characterized in that, The terminal device indicates the type of the terminal device by whether the first message includes a terminal type indication field and / or a value of the terminal type indication field in the first message.

17. The method of claim 1, wherein, The first PDCCH further includes scheduling indication information, where the scheduling indication information is used to indicate that the first PDCCH schedules transmission of one PDSCH or transmission of the N PDSCHs.

18. The method of claim 1, wherein, The N PDSCHs satisfy at least one of the following conditions: The N PDSCHs occupy the same time domain resource size. The N PDSCHs occupy the same frequency domain resource position. The N PDSCHs correspond to the same modulation and coding scheme (MCS). The N PDSCHs correspond to the same transport block size (TBS).

19. A paging method, characterized by, The method includes: A network device sends a first physical downlink control channel (PDCCH) at a first paging occasion (PO), where the first PDCCH is used to schedule transmission of N physical downlink shared channels (PDSCHs), the N PDSCHs occupy different time domain resource positions, each of the N PDSCHs is used to carry a paging message of a terminal device of one type of N types, and N≥2. The N types include power saving terminal devices and non-power saving terminal devices, the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH is transmitted after the first PDSCH, the first PDSCH is used to carry the paging message of the non-power saving terminal device, and the second PDSCH is used to carry the paging message of the power saving terminal device.

20. The method of claim 19, wherein, The first PDCCH comprises time domain resource indication, and the time domain resource indication is used to indicate a reference offset, and the reference offset is used to determine a time slot offset of a first PDSCH relative to the first PDCCH, wherein the first PDSCH is a PDSCH for a first transmission of the N PDSCHs, and the first PDSCH is used to carry a paging message of a terminal device of a first type in the N types.

21. The method of claim 20, wherein, The method further comprises: The network device sends first configuration information to the terminal device, and the first configuration information comprises N-1 offset adjustment amounts, wherein the N-1 offset adjustment amounts correspond to N-1 PDSCHs other than the first PDSCH in the N PDSCHs, and the N-1 offset adjustment amounts are time domain offsets of the N-1 PDSCHs relative to the first PDSCH respectively.

22. The method of claim 21, wherein, The unit of the offset adjustment amount is at least one synchronization signal burst period.

23. The method of claim 21 or 22, wherein, The N-1 offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

24. The method of claim 20, wherein, The method further comprises: The network device sends offset adjustment amount indication information to the terminal device, and the offset adjustment amount indication information is used to indicate target offset adjustment amounts corresponding to N-1 PDSCHs other than the first PDSCH in the N PDSCHs in M offset adjustment amounts, wherein M≥N.

25. The method of claim 24, wherein, The offset adjustment amount indication information is carried in the first PDCCH.

26. The method of claim 24 or 25, wherein, The M offset adjustment amounts are configured by the network device or are preconfigured.

27. The method of claim 26, wherein, The M offset adjustment amounts are configured through broadcast signaling and / or radio resource control (RRC) signaling.

28. The method of claim 19, wherein, The network device is an access network device, and the method further comprises: The network device receives a paging message sent by a core network device, and the paging message is used to notify a type of the terminal device.

29. The method of claim 28, wherein, The method further comprises: The network device determines the type of the terminal device according to whether the paging message comprises a terminal type indication field and / or a value of the terminal type indication field in the paging message.

30. The method of claim 19, wherein, The first PDCCH further comprises scheduling indication information, and the scheduling indication information is used to indicate that the first PDCCH schedules transmission of one PDSCH or transmission of the N PDSCHs.

31. The method of claim 19, wherein, The N PDSCHs satisfy at least one of the following conditions: The N PDSCHs occupy the same time domain resource size; The N PDSCHs occupy the same frequency domain resource position; The N PDSCHs correspond to the same modulation and coding scheme (MCS); The N PDSCHs correspond to the same transport block size (TBS).

32. A terminal device, comprising: The method further comprises: a communication unit configured to receive, at a first paging occasion (PO), a first physical downlink control channel (PDCCH) transmitted by a network device, the first PDCCH being configured to schedule transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource locations, and each of the N PDSCHs is configured to carry a paging message for a terminal device of one of N types, and N≥2; and receive, at a time domain resource location corresponding to a particular PDSCH of the N PDSCHs, the particular PDSCH, wherein the particular PDSCH is configured to carry a paging message for a terminal device of a particular type. wherein the N types include power saving terminal devices and non-power saving terminal devices, and the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH being transmitted after the first PDSCH, the first PDSCH being configured to carry a paging message for the non-power saving terminal devices, and the second PDSCH being configured to carry a paging message for the power saving terminal devices.

33. A network device, comprising: comprising: a communication unit configured to transmit, at a first paging occasion (PO), a first physical downlink control channel (PDCCH), the first PDCCH being configured to schedule transmission of N physical downlink shared channels (PDSCHs), wherein the N PDSCHs occupy different time domain resource locations, and each of the N PDSCHs is configured to carry a paging message for a terminal device of one of N types, and N≥2. wherein the N types include power saving terminal devices and non-power saving terminal devices, and the N PDSCHs include a first PDSCH and a second PDSCH, the second PDSCH being transmitted after the first PDSCH, the first PDSCH being configured to carry a paging message for the non-power saving terminal devices, and the second PDSCH being configured to carry a paging message for the power saving terminal devices.

34. A terminal device, comprising: comprising: a processor and a memory storing a computer program, the processor being configured to invoke and run the computer program stored in the memory to perform the method of any one of claims 1 to 18.

35. A chip, comprising: comprising: a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the method of any one of claims 1 to 18.

36. A computer-readable storage medium, characterized in that, a computer program for causing a computer to perform the method of any one of claims 1 to 18.

37. A computer program product, characterised in that, computer program instructions for causing a computer to perform the method of any one of claims 1 to 18.

38. A network device, comprising: comprising: a processor and a memory storing a computer program, the processor being configured to invoke and run the computer program stored in the memory to perform the method of any one of claims 19 to 31.

39. A chip, comprising: comprising: a processor configured to invoke and run a computer program from a memory, so that a device installed with the chip performs the method of any one of claims 19 to 31.

40. A computer-readable storage medium, comprising: A computer program for storing a computer program which causes a computer to perform the method of any one of claims 19 to 31.

41. A computer program product, characterised in that, Computer program instructions comprising a computer program which causes a computer to perform the method of any one of claims 19 to 31.

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