Wireless communication method, apparatus, device, and storage medium

Abstract

A wireless communication method, apparatus, device, and storage medium relate to communication technology. The method includes: a terminal device receiving first configuration information sent by a network device in a first cell, the first configuration information including configuration information related to a paging channel (510); and the terminal device listening for a paging channel in a second cell according to the first configuration information (520). This method enables the terminal device to obtain paging messages through the second cell even when the first cell does not send a paging channel. In other words, by enhancing the paging mechanism, network device power consumption can be saved while ensuring network communication performance.

Description

Wireless communication method, device, equipment and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a wireless communication method, apparatus, device, and storage medium. Background Art

[0002] Network energy saving is of great significance to environmental sustainability, reducing environmental impact (reducing greenhouse gas emissions), and saving operating costs.

[0003] To achieve network energy conservation, one network deployment method is to reduce the transmission of downlink common channels or signals in energy-saving cells. Downlink common channels or signals primarily include system messages and paging messages. In energy-saving cells, network equipment can stop transmitting system messages for that cell. Only when a terminal device needs to receive system messages, such as when it needs to access the network or resynchronize time and frequency, will it send a request message to the network device requesting system message transmission.

[0004] However, this method is not suitable for paging messages because the terminal device cannot determine when it needs to receive a paging message. How to enhance the existing paging mechanism to achieve the purpose of network energy saving is an unresolved problem.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a wireless communication method, apparatus, device, and storage medium. The technical solutions provided by the embodiments of the present application are as follows:

[0007] According to one aspect of an embodiment of the present application, a wireless communication method is provided, the method being performed by a terminal device, the method comprising:

[0008] receiving first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel;

[0009] The paging channel is monitored on the second cell according to the first configuration information.

[0010] According to one aspect of an embodiment of the present application, a wireless communication method is provided, where the method is performed by a network device of a first cell, and the method includes:

[0011] First configuration information is sent to a terminal device, where the first configuration information includes configuration information related to a paging channel, and the first configuration information is used by the terminal device to monitor the paging channel on a second cell.

[0012] According to one aspect of an embodiment of the present application, a wireless communication method is provided, the method being performed by a terminal device, the method comprising:

[0013] Receiving first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part (BWP) configuration information, where the first downlink BWP configuration information is used to determine a first downlink BWP;

[0014] The paging channel is monitored on the first downlink BWP according to the first configuration information.

[0015] According to one aspect of an embodiment of the present application, a wireless communication method is provided, where the method is performed by a network device of a first cell, and the method includes:

[0016] Send first configuration information to the terminal device, the first configuration information including configuration information related to the paging channel and first downlink bandwidth part BWP configuration information, the first downlink BWP configuration information is used to determine the first downlink BWP, and the first configuration information is used by the terminal device to monitor the paging channel on the first downlink BWP.

[0017] According to one aspect of an embodiment of the present application, a wireless communication device is provided, the device including:

[0018] a receiving module, configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel;

[0019] The receiving module is further configured to monitor the paging channel on the second cell according to the first configuration information.

[0020] According to one aspect of an embodiment of the present application, a wireless communication device is provided, the device including:

[0021] A sending module is used to send first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part BWP configuration information, where the first downlink BWP configuration information is used to determine a first downlink BWP, and the first configuration information is used by the terminal device to monitor the paging channel on the first downlink BWP.

[0022] According to one aspect of an embodiment of the present application, a wireless communication device is provided, the device including:

[0023] a receiving module, configured to receive first configuration information sent by a network device of a first cell, wherein the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part (BWP) configuration information, wherein the first downlink BWP configuration information is used to determine a first downlink BWP;

[0024] The receiving module is further configured to monitor the paging channel on the first downlink BWP according to the first configuration information.

[0025] According to one aspect of an embodiment of the present application, a wireless communication device is provided, the device including:

[0026] A sending module is used to send first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part BWP configuration information, where the first downlink BWP configuration information is used to determine a first downlink BWP, and the first configuration information is used by the terminal device to monitor the paging channel on the first downlink BWP.

[0027] According to one aspect of an embodiment of the present application, a communication device is provided, which includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0028] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used to be executed by a processor to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0029] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0030] According to one aspect of an embodiment of the present application, a computer program product is provided, which includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0031] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0032] After receiving the first configuration information sent by the network equipment of the first cell, the terminal device monitors the paging channel on the second cell according to the first configuration information including configuration information related to the paging channel. This allows the terminal device to obtain paging messages through the second cell even when the first cell does not transmit the paging channel. In other words, through the enhanced paging mechanism described above, energy consumption of network equipment can be reduced while ensuring network communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0034] FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0035] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0036] FIG4 is a schematic diagram of a method for determining a time domain position of a paging advance indication opportunity provided by an embodiment of the present application;

[0037] FIG5 is a flowchart of a wireless communication method provided by an embodiment of the present application;

[0038] FIG6 is a schematic diagram of monitoring a paging opportunity on a second cell according to an embodiment of the present application;

[0039] 7 is a schematic diagram of monitoring a paging opportunity on a second cell provided by another embodiment of the present application;

[0040] FIG8 is a flowchart of a wireless communication method provided by another embodiment of the present application;

[0041] FIG9 is a flowchart of a wireless communication method provided by another embodiment of the present application;

[0042] 10 is a schematic diagram of a terminal device monitoring a paging opportunity on a first downlink bandwidth portion according to an embodiment of the present application;

[0043] FIG11 is a flowchart of a wireless communication method provided by another embodiment of the present application;

[0044] FIG12 is a block diagram of a wireless communication device provided by one embodiment of the present application;

[0045] FIG13 is a block diagram of a wireless communication device provided by another embodiment of the present application;

[0046] FIG14 is a block diagram of a wireless communication device provided by another embodiment of the present application;

[0047] FIG15 is a block diagram of a wireless communication device provided by another embodiment of the present application;

[0048] FIG16 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

[0049] FIG17 is a schematic diagram of the structure of a network device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0051] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0052] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: 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, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system, B5G (Beyound 5G) system, sixth-generation communication (6G) system or other communication systems, etc.

[0053] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will 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.

[0054] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0055] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0056] The embodiments of the present application can be applied to both non-terrestrial networks (NTN) and terrestrial networks (TN). NTNs generally use satellite communications to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN systems, and may include other NTN systems in the future.

[0057] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. As shown in Figure 1, communication system 100 may include network device 110, which may be a device that communicates with terminal device 120. Network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices located within the coverage area.

[0058] Figure 1 exemplarily shows a network device 110 and two terminal devices 120. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0059] For example, FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG2 , the communication system may include a terminal device 201 and a satellite 202, and wireless communication may be performed between the terminal device 201 and the satellite 202. The network formed between the terminal device 201 and the satellite 202 may also be referred to as an NTN. In the architecture of the communication system shown in FIG2 , the satellite 202 may have the function of a base station, and the terminal device 201 and the satellite 202 may communicate directly. In this system architecture, the satellite 202 may be referred to as a network device. In some embodiments of the present application, a plurality of satellites 202 may be included in the communication system, and each network satellite 202 may include a different number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0060] For example, FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application. Referring to FIG3 , the communication system includes a terminal device 301, a satellite 302, and a base station 303. Wireless communication can be performed between the terminal device 301 and the satellite 302, and communication can be performed between the satellite 302 and the base station 303. The network formed between the terminal device 301, the satellite 302, and the base station 303 can also be referred to as an NTN. In the architecture of the communication system shown in FIG3 , the satellite 302 may not have the function of a base station, and the communication between the terminal device 301 and the base station 303 needs to be transferred through the satellite 302. In this system architecture, the base station 303 can be referred to as a network device. In some embodiments of the present application, the communication system may include multiple base stations 303, each base station 303 can communicate with one or more satellites 302, and each satellite 302 can include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0061] In future evolved communication systems such as B5G (Beyond 5G) or 6G, distributed multiple-input multiple-output (Distributed MIMO, also known as distributed antenna system) scenarios and / or massive multiple-input multiple-output (Massive MIMO, also known as massive antenna matrix system) scenarios may also be included. In some cases, Distributed MIMO and / or Massive MIMO can also support cell-free or terminal-centric (UE-centric) network deployment scenarios. It should be understood that the above scenarios are also applicable to TN and / or NTN.

[0062] The terminal devices mentioned in the embodiments of the present application may refer to UE (User Equipment), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent or user device. Optionally, the terminal device 10 may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited to this. For convenience of description, the above-mentioned devices are collectively referred to as terminal devices. In the embodiments of the present application, "terminal device" and "UE" are often used interchangeably, but those skilled in the art will understand that the two can express the same meaning.

[0063] The network equipment mentioned in the embodiments of the present application may be an access network device, which may be located on the ground or on a satellite. An access network device is a device deployed in an access network to provide wireless communication functions for terminal devices. Access network devices may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in a 5G NR system, they are called gNodeB or gNB. With the evolution of communication technology, the name "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for terminal devices are collectively referred to as access network devices. Optionally, a communication relationship can be established between a terminal device and a core network device through the access network device.

[0064] The "5G NR system" in the embodiments of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in the embodiments of the present application may be applicable to LTE systems, 5G NR systems, subsequent evolution systems of 5G NR systems (e.g., B5G systems, 6G systems), and other communication systems such as NB-IoT (Narrow Band Internet of Things) systems, and this application does not limit this.

[0065] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0066] Before introducing the technical solutions of this application, we first introduce and explain the related technologies involved in this application. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least part of the following contents.

[0067] 1. Network energy saving

[0068] Network energy conservation is crucial for environmental sustainability, reducing environmental impact (e.g., greenhouse gas emissions), and saving operating costs. As 5G becomes increasingly widespread across various industries and geographic regions, it will need to support very high data rates to handle more advanced services and applications (such as XR). Network deployments will become denser, using more antennas, greater bandwidth, and more frequency bands. Considering the environmental impact of 5G, new, controlled solutions are needed to enhance network energy conservation.

[0069] Energy consumption has become a key component of operators' operational expenditures (OPEX). According to a report by the GSMA (Global System for Mobile communications Association), energy costs for mobile networks account for approximately 23% of total OPEX. Most of this energy consumption comes from the radio access network, more specifically, the active antenna unit (AAU), with data centers and fiber optic transmission contributing to a smaller share. The power consumption of a single radio access can be divided into two parts: the dynamic part includes only the power consumption when data is being sent or received; the static part includes the power consumption required to maintain the necessary operations of the radio access equipment at all times, including when no data is being sent or received.

[0070] Therefore, based on the above objectives, it is necessary to research and develop network energy consumption models, KPIs (Key Performance Indicators), and evaluation methods on the network device side to determine and study network energy-saving technologies in the target deployment scenario. Among them, the power consumption model on the terminal device side that has been defined can be used as a reference. This research should focus on how to achieve more efficient dynamic operation and / or semi-static operation, and consider one or more network energy-saving technologies applied to the time domain, frequency domain, spatial domain, and power domain, combined with potential terminal device feedback support, potential terminal device auxiliary information, and information exchange or coordination between network interfaces to achieve more fine-grained data transmission and / or reception adaptation.

[0071] It is worth noting that this study not only evaluates potential network energy savings but also assesses and balances the impact on network and user performance by observing key performance indicators (KPIs) such as spectral efficiency, capacity, user perceived throughput (UPT), latency, UE power consumption, complexity, handover performance, call drop rate, initial access performance, and SLA security-related KPIs. This study should avoid significantly impacting these KPIs.

[0072] 2. Paging mechanism in NR system

[0073] There are three main application scenarios for paging in the NR system, corresponding to three types of paging messages: core network-initiated paging, gNB-initiated paging, and gNB-initiated system update notifications. gNB-initiated system update notifications are called short messages in the RRC (Radio Resource Control) protocol. The PDCCH (Physical Downlink Control Channel) of these three paging messages is scrambled with the common Paging-Radio Network Temporary Identifier (P-RNTI) configured in the cell. A comparison of these three paging messages is shown in Table 1.

[0074] Table 1

[0075] On the main cell, the terminal device uses the P-RNTI-scrambled DCI (Downlink Control Information) format 1_0 to monitor the Type2-PDCCH CSS (Type2-Physical Downlink Control Channel Common Search Space) set configured in the paging search space (Paging Search Space) according to the CRC (Cyclic Redundancy Check) to receive the scheduling of the paging message by the network device. Among them, the short message is the RRC information contained in the above-mentioned CRC using the P-RNTI-scrambled DCI format 1_0. Specifically, the CRC using the P-RNTI-scrambled DCI format 1_0 includes two information fields related to short messages, one is the short message indication (Short Messages Indicator) field, and the other is the short message field. The short message indication field includes 2 bits for indicating the information shown in Table 2; the short message field includes 8 bits for indicating the information shown in Table 3. In the case where only scheduling information of a paging message and a Tracking Reference Signal (TRS) availability indication appear in the DCI, the short message field is reserved.

[0076] Table 2

[0077] Table 3

[0078] The basic principles of the paging message transmission mechanism are the same for core network-initiated and gNB-initiated paging. From the network's perspective, paging messages are sent at each paging opportunity (PO) within the system message update cycle. From the terminal device's perspective, the UE only monitors one PO during each discontinuous reception (DRX) cycle. Each UE calculates the paging frame (PF) and paging opportunity PO based on its own UE ID (UE Identifier) ​​and DRX cycle. This means that each PO is associated with a specific UE and is not shared by all UEs. Since UEs only need to monitor their own PO, this PO-based grouping mechanism can reduce false alarm rates for paging calls between different POs.

[0079] A PO is a group of PDCCH monitoring opportunities (PDCCH Monitoring Occasions), consisting of multiple time units (such as subframes, time slots, or symbols), which can be used to transmit paging DCI. A PF is a radio frame that can include one or more POs or the starting position of a PO.

[0080] In multi-beam operation, the UE assumes that the same paging message and the same short message are repeated in all transmitted beams, so how to select the beam to receive the paging message and short message depends on the UE implementation.

[0081] The formula for determining the frame number SFN of the radio frame where the PF is located is as follows: (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N)

[0082] The formula for determining the PO index i_s is as follows: i_s = floor (UE_ID / N) mod Ns

[0083] Among them, PF_offset represents the radio frame offset, T is the paging cycle, N is the number of PFs in the paging cycle T, UE_ID is the UE identifier, which is equal to 5G-S-TMSI (5G-SAE-Temporary Mobile Station Identifier) ​​mod1024 or 5G-S-TMSI mod 4096, Ns is the number of POs in a PF, the mod symbol is used to take the remainder obtained by dividing the number on the left side of mod by the number on the right side, div is used to take the integer quotient obtained by dividing the number on the left side of div by the number on the right side, and floor is used to round down the number on the right side of floor.

[0084] If the PDCCH monitoring opportunity for paging is defined by the paging search space in SIB (System Information Block) 1 (i.e., the paging search space is configured with SearchSpaceId not equal to 0), then PO is a time unit containing a set of PDCCH monitoring opportunities, and PF is a radio frame containing PO in a DRX cycle.

[0085] When the PDCCH monitoring opportunity used for paging is defined by search space No. 0 in the MIB (Master Information Block) (that is, the paging search space is configured with SearchSpaceId=0), PO is a time unit containing a set of PDCCH monitoring opportunities, and PF is a reference radio frame pointing to PO. This reference radio frame actually contains SSB (Synchronization Signal / PBCH Block) transmission opportunities. The relationship between this reference radio frame and the radio frame where the associated PO is located (as well as the time slot and OFDM (Orthogonal Frequency Division Multiplexing) symbol) is fixed, so the UE can accurately locate the PO based on the reference radio frame.

[0086] The PDCCH monitoring opportunity for paging is determined based on the paging search space pagingSearchSpace and the PO starting position parameter (optionally configured by the parameter firstPDCCH-MonitoringOccasionOfPO) and the number X of PDCCH monitoring opportunities corresponding to one SSB (optionally configured by the parameter nrofPDCCH-MonitoringOccasionPerSSB-InPO, the purpose is to increase the paging opportunity for the NR-U cell. If not configured, X=1). When SearchSpaceId=0 is configured for the paging search space, the PDCCH monitoring opportunity for paging is the same as the PDCCH monitoring opportunity for RMSI (Remaining minimum system information).

[0087] When SearchSpaceId=0 is configured for the paging search space, Ns is 1 or 2. For Ns=1, there is only one PO starting from the first PDCCH monitoring opportunity for paging in the PF. For Ns=2, the PO is in the first half frame (i_s=0) or the second half frame (i_s=1) of the PF.

[0088] When the SearchSpaceId configured for the paging search space is not 0, the UE monitors the (i_s+1)th PO. The PO is a set of consecutive "S*X" PDCCH listening opportunities, where S is the number of SSBs actually transmitted in the SSB transmission opportunity set in the cell determined according to SIB1, and X is the number of PDCCH listening opportunities corresponding to one SSB as described above. The [x*S+K]th PDCCH listening opportunity for paging in the PO corresponds to the Kth transmitted SSB, where x = 0, 1, ..., X-1, K = 1, 2, ..., S. For PDCCH listening opportunities for paging that do not overlap with UL symbols in the PF, they are numbered sequentially starting from zero, starting from the first PDCCH listening opportunity for paging. If the PO starting position parameter (firstPDCCH-MonitoringOccasionOfPO) is configured, the starting PDCCH monitoring opportunity in the (i_s+1)th PO is the (i_s+1)th value in the PO starting position parameter; otherwise, the starting PDCCH monitoring opportunity in the (i_s+1)th PO is i_s*S*X. If X>1, when the UE detects a PDCCH transmission addressed to the P-RNTI within its PO, the UE does not need to monitor the subsequent PDCCH monitoring opportunities of the PO.

[0089] The parameters Ns, nAndPagingFrameOffset, nrofPDCCH-MonitoringOccasionPerSSB-InPO and the length of the default DRX cycle are notified through the SIB1 message. Among them, the values ​​of N and PF_offset are determined by the parameter nAndPagingFrameOffset. If the BWP (Bandwidth Part) used for paging is the initial downlink BWP configured by the parameter initialDownlinkBWP, the parameter firstPDCCH-MonitoringOccasionOfPO is notified through the SIB1 message. If the downlink BWP used for paging is not the initial downlink BWP configured by the parameter initialDownlinkBWP, the parameter firstPDCCH-MonitoringOccasionOfPO is notified through the configuration message of the corresponding downlink BWP.

[0090] If the terminal device does not have a 5G-S-TMSI, for example, when the terminal device has not yet registered with the network, the terminal device should use the default UE_ID = 0 when determining PF and PO using the above formula.

[0091] 3. Enhanced paging mechanism in NR system

[0092] The power consumption of terminal devices in the RRC_IDLE and RRC_INACTIVE states mainly comes from periodic discontinuous paging reception. To reduce power consumption during paging reception, an energy-saving signal for paging reception, called Paging Early Indication (PEI), is introduced. It is used to indicate whether the terminal device needs to receive paging on the PO before the PO arrives.

[0093] PEI further introduces the concept of subgrouping within a PO based on the existing PO-based grouping. When only UEs in some subgroups are paged, UEs in other subgroups do not need to wake up to receive paging, so as to achieve the purpose of terminal power saving. The division of subgroups supports UE ID-based grouping and network-allocated grouping. UE ID-based grouping is similar to the way PO is calculated based on UE ID. For example, the system message broadcasts the maximum number of groups in each PO. By performing related operations such as modulo operation of UE ID on this maximum number of groups, the group information to which the UE belongs on this PO can be obtained. In the network-allocated grouping scheme, the terminal device obtains grouping information directly from the network.

[0094] On the main cell, the terminal device uses the DCI format 2_7 scrambled with PEI-RNTI (Paging Early Indication-Radio Network Temporary Identifier) ​​according to the CRC to monitor the Type2A-PDCCH CSS set configured in the PEI search space (Pei-Search Space) to receive the PEI message sent by the network device. The paging indication field in DCI format 2_7 includes NPO*NSG bits, where NPO is the number of POs configured by the high-level parameter po-NumPerPEI, and NSG is the number of subgroups included in a PO configured by the high-level parameter subgroupsNumPerPO. Each bit is used to indicate a terminal subgroup in a PO. The maximum number of subgroups included in a PO is 8.

[0095] The PEI indicates whether terminal devices in the RRC_IDLE and RRC_INACTIVE states need to monitor paging. When a terminal group or terminal subgroup requires monitoring paging, the PEI instructs the terminal device to monitor the PO. If no PEI associated with the PO is detected, the terminal does not need to monitor the PO. Network devices can provide PEI configuration information through system messages.

[0096] The UE monitors only one PEI-O in each DRX cycle. A PEI Occasion (PEI-O) is a collection of multiple PDCCH monitoring opportunities. A PEI monitoring opportunity is a set of PDCCH monitoring opportunities (PDCCH Monitoring Occasions) consisting of multiple time units (e.g., subframes, time slots, or symbols) that can be used to transmit a PEI. In multi-beam operation, the UE assumes that the same PEI is repeated in all transmitted beams. Therefore, the selection of the beam to receive the PEI is up to the UE implementation.

[0097] The time domain position of the PEI-O associated with the PO of the UE is determined based on the reference point and the offset value.

[0098] First, determine the reference frame and use the starting point of the reference frame as the reference point. There is a frame-level offset value between the reference frame and the first PF among all PFs associated with PEI-O (when a PEI-O is associated with multiple POs, the associated POs may be located in different PFs). This frame-level offset value is configured using the parameter pei-FrameOffset in the system message SIB1.

[0099] There is a symbol-level offset value between the reference point and the starting position of the first PDCCH monitoring opportunity in PEI-O. The symbol-level offset value is configured through the parameter firstPDCCH-MonitoringOccasionOfPEI-O in the system message SIB1.

[0100] FIG4 is a schematic diagram showing a method for determining the time domain position of PEI-O.

[0101] The PDCCH monitoring opportunity for PEI is determined based on the PEI search space pei-SearchSpace, the offset value at the frame level and the offset value at the symbol level, and the number X of PDCCH monitoring opportunities corresponding to one SSB (optionally configured by the parameter nrofPDCCH-MonitoringOccasionPerSSB-InPO, the purpose is to increase the paging opportunity for the NR-U cell, if not configured, X=1). When SearchSpaceId=0 is configured for the PEI search space, the PDCCH monitoring opportunity for PEI is the same as the PDCCH monitoring opportunity for RMSI. For the case where SearchSpaceId>0 is configured for the PEI search space, the UE determines the first PDCCH monitoring opportunity in PEI-O based on the offset value at the frame level and the offset value at the symbol level.

[0102] When SearchSpaceId=0 is configured for the PEI search space, the UE monitors PEI-O based on searchSpaceZero. When SearchSpaceId is not 0, the UE monitors PEI-O based on the configured SearchSpaceId.

[0103] A PEI-O is a set of consecutive "S*X" PDCCH monitoring opportunities, where S is the number of SSBs actually transmitted in the SSB transmission opportunity set in the cell as determined by SIB1, and X is the number of PDCCH monitoring opportunities corresponding to one SSB, as described above. The [x*S+K]th PDCCH monitoring opportunity for a PEI in a PEI-O corresponds to the Kth transmitted SSB, where x = 0, 1, ..., X-1, and K = 1, 2, ..., S. PDCCH monitoring opportunities for PEIs in a PEI-O that do not overlap with UL symbols are numbered sequentially starting from zero, starting with the first PDCCH monitoring opportunity for a PEI. When a UE detects a PEI within its PEI-O, it is not required to monitor subsequent PDCCH monitoring opportunities for that PEI-O.

[0104] If a UE cannot monitor the PEI-O associated with its PO (ie, all valid PDCCH monitoring opportunities for PEI transmission), for example during cell reselection, the UE monitors the associated PO.

[0105] Please refer to Figure 5, which shows a flow chart of a wireless communication method provided by an embodiment of the present application. The execution subject of each step of the method is a terminal device. The method may include at least one step of steps 510-520.

[0106] Step 510: The terminal device receives first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel.

[0107] In some embodiments, the paging channel includes P-PDCCH (Paging PDCCH, paging-physical downlink control channel) and / or PEI-PDCCH (Paging Early Indication PDCCH, paging early indication-physical downlink control channel).

[0108] In some embodiments, the P-PDCCH associated DCI format includes DCI format 1_0 in which the CRC is scrambled using the P-RNTI.

[0109] In some embodiments, the DCI format associated with the PEI-PDCCH includes DCI format 2_7 in which the CRC is scrambled using the PEI-RNTI.

[0110] It is understandable that, with the development of standard technologies, paging channels may also include new channels for paging terminal devices, which is not limited in this application.

[0111] In some embodiments, the first cell is a primary cell (PCell) of the terminal device.

[0112] Step 520: The terminal device monitors the paging channel in the second cell according to the first configuration information.

[0113] In some embodiments, the second cell and the first cell are different cells.

[0114] In some embodiments, the second cell is a secondary cell (SCell) or a primary secondary cell group cell (PSCell) of the terminal device, wherein the primary secondary cell is a primary cell in a secondary cell group.

[0115] In some embodiments, the first cell is a primary cell, and the second cell is a secondary cell or a primary-secondary cell. In this case, through the technical solutions provided in the embodiments of the present application, the terminal device can monitor the paging channel on the secondary cell, and accordingly, the primary cell can stop sending the relevant paging channel, thereby saving power consumption of the primary cell network equipment.

[0116] In some embodiments, the first configuration information includes an identifier of the second cell. The cell identifier is used to distinguish different cells, that is, the terminal device can identify the second cell from multiple cells through the identifier of the second cell.

[0117] In some embodiments, the terminal device monitors the P-PDCCH at the PO of the second cell.

[0118] In some embodiments, the terminal device monitors the PEI-PDCCH at the PEI-O of the second cell.

[0119] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the second cell.

[0120] In some embodiments, the terminal device monitors the paging channel on the second cell according to configuration information related to the paging channel of the second cell.

[0121] In some embodiments, the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: search space No. 0 of the second cell, the length of the paging DRX cycle of the second cell, the cell DTX (Discontinuous Transmission) cycle configuration of the second cell, the cell DRX cycle configuration of the second cell, the initial downlink BWP configuration of the second cell, the number of SSBs of the second cell, the SSB set of the second cell, the number of PDCCH monitoring opportunities corresponding to an SSB of the second cell, and the TCI (Transmission Configuration Indicator State) status of the first cell.

[0122] In some embodiments, the terminal device may receive the scheduling of the SIB1 message by the network device of the second cell by monitoring the search space 0 of the second cell. That is, in some embodiments, the search space 0 of the second cell is used for scheduling system messages of the second cell.

[0123] In the NR system, in order to achieve network energy saving, the network device can configure the cell DTX and / or cell DRX configuration for the terminal device. During the non-activation period of the cell DTX configured for the terminal device, the network device may not send a specific downlink channel or signal, and / or the terminal device may not receive a specific downlink channel or signal. During the non-activation period of the cell DRX configured for the terminal device, the terminal device may not send a specific downlink channel or signal, and / or the network device may not receive a specific uplink channel or signal. In this way, energy consumption saving of the network device can be achieved.

[0124] During the paging DRX cycle of the second cell, the terminal device can monitor the paging channel on the second cell.In some embodiments, the length of the paging DRX cycle of the second cell is used to determine the PF and the PO.

[0125] The cell DTX cycle configuration of the second cell includes a DTX activation cycle and / or inactivation cycle configuration of the second cell, and the DRX cycle configuration of the second cell includes a DRX activation cycle and / or inactivation cycle configuration of the second cell. In some embodiments, the cell DTX cycle configuration of the second cell is used to determine PF and PO, and / or the DRX cycle configuration of the second cell is used to determine PF and PO.

[0126] In some embodiments, the BWP used for paging is the initial downlink BWP. Therefore, in some embodiments, the PO and / or PEI-O may be determined according to the initial downlink BWP configuration of the second cell.

[0127] In some embodiments, the number of SSBs of the second cell includes the number of SSBs actually sent in the SSB transmission opportunity set of the second cell.

[0128] In some embodiments, the SSB set of the second cell includes the set of SSBs actually transmitted in the SSB transmission opportunity set of the second cell. The SSB set includes multiple SSBs within a certain period. In some embodiments, the PO is a set of consecutive PDCCH monitoring opportunities. The number of PDCCH monitoring opportunities included in this set of PDCCH monitoring opportunities can be obtained by multiplying the number of SSBs in the second cell by the number of PDCCH monitoring opportunities corresponding to an SSB in the second cell.

[0129] In some embodiments, PEI-O is a group of consecutive PDCCH monitoring opportunities. The number of PDCCH monitoring opportunities included in the group of PDCCH monitoring opportunities can be obtained by multiplying the number of SSBs of the second cell by the number of PDCCH monitoring opportunities corresponding to one SSB of the second cell.

[0130] In some embodiments, when the paging channel includes a P-PDCCH, configuration information related to the paging channel of the second cell is used to determine the paging search space of the second cell. That is, in some embodiments, the terminal device can determine the paging search space of the second cell based on the configuration information related to the paging channel.

[0131] In some embodiments, the terminal device may receive the paging message by monitoring the paging search space of the second cell.

[0132] In some embodiments, when the configuration information related to the paging channel of the second cell is not used to determine the paging search space of the second cell, the paging search space of the second cell is the second cell's search space 0. That is, in some embodiments, the second cell's search space 0 is used as the default search space for the terminal device to monitor to receive paging messages.

[0133] In some embodiments, when the paging channel includes a PEI-PDCCH, configuration information related to the paging channel of the second cell is used to determine at least one of the following information: the PEI search space of the second cell, the number of POs configured in the second cell, and the number of subgroups included in a PO configured in the second cell. That is, in some embodiments, the terminal device can determine the PEI search space in the second cell based on the configuration information related to the paging channel.

[0134] In some embodiments, the terminal device may receive the PEI by monitoring the PEI search space of the second cell. In some embodiments, the number of bits included in the paging indication field in the PEI-PDCCH may be obtained by multiplying the number of POs configured in the second cell by the number of subgroups included in a PO configured in the second cell.

[0135] In some embodiments, when the configuration information related to the paging channel of the second cell is not used to determine the PEI search space of the second cell, the PEI search space of the second cell is the second cell's search space 0. That is, in some embodiments, the second cell's search space 0 is used as the default search space for the terminal device to receive the PEI by monitoring.

[0136] In some embodiments, the TCI state of the first cell is used to determine the beam of a terminal device in the first cell when monitoring a paging channel on the second cell.

[0137] In some embodiments, the TCI state of the first cell is used to determine an SSB in the second cell that has a QCL (Quasi-Co-Location) relationship with the SSB sent by the first cell.

[0138] Exemplarily, the SSB set of the second cell includes SSB0, SSB1, SSB2, and SSB3 on the second cell, and the SSB set of the first cell includes SSB0 and SSB1 on the first cell. The TCI state of the first cell is used to determine that SSB0 on ​​the first cell and SSB0 on ​​the second cell have a QCL relationship, and that SSB1 on the first cell and SSB2 on the second cell have a QCL relationship. Accordingly, when a terminal device in the first cell monitors the paging channel on the second cell, it can monitor the PO or PEI-O associated with SSB0 and SSB2 on the second cell.

[0139] In some embodiments, the TCI status of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell.

[0140] In some embodiments, the TCI status of the first cell is used to determine the SSB in the second cell to be monitored by the terminal device.

[0141] Exemplarily, the SSB set of the second cell includes SSB0, SSB1, SSB2, and SSB3 on the second cell, and the TCI status of the first cell indicates SSB0 and SSB2 on the second cell. Then, when the terminal device in the first cell monitors the paging channel on the second cell, it can monitor the PO or PEI-O associated with SSB0 and SSB2 on the second cell.

[0142] In some embodiments, when the configuration information related to the paging channel of the second cell is not used to determine the TCI status of the first cell, the terminal device in the first cell can monitor the paging channel on the second cell based on the implementation selection beam of the terminal device, for example, the terminal device can monitor PO or PEI-O that is associated with all SSBs on the second cell.

[0143] For example, please refer to Figure 6, which shows a schematic diagram of monitoring paging opportunities on the second cell provided by an embodiment of the present application. As shown in Figure 6, the terminal device receives the first configuration information sent by the network device of the first cell, and the first configuration information includes the second cell identifier and the configuration information related to the paging channel of the second cell. Among them, the SSB set sent on the first cell is {SSB0, SSB1}, and the SSB set sent on the second cell is {SSB0', SSB1', SSB2', SSB3'}. Specifically, the terminal device can determine the POs associated with {SSB0', SSB1', SSB2', SSB3'} of the second cell according to the first configuration information, and the terminal device also determines that SSB0 on ​​the first cell and SSB0 on ​​the second cell have a QCL relationship (that is, SSB0 and SSB0' have a QCL relationship) according to the first configuration information, and SSB1 on the first cell and SSB2 on the second cell have a QCL relationship (that is, SSB1 and SSB2' have a QCL relationship). Therefore, the terminal device can monitor the PO associated with SSB0' or the PO associated with SSB2' on the second cell.

[0144] In the above embodiment, the network equipment of the first cell sends configuration information related to the paging channel of the second cell to the terminal device. The terminal device can obtain paging messages by monitoring the PEI-O and / or PO configured for the second cell on the second cell. During this process, the network equipment of the first cell can disable transmission of the corresponding paging channel, thereby achieving network energy conservation.

[0145] In some embodiments, the configuration information related to the paging channel includes configuration information related to the paging channel of the first cell.

[0146] In some embodiments, the terminal device monitors the paging channel on the second cell according to configuration information related to the paging channel of the first cell.

[0147] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0148] During the paging DRX cycle of the first cell, the terminal device can monitor the paging channel on the first cell.In some embodiments, the length of the paging DRX cycle of the first cell is used to determine the PF and the PO.

[0149] The cell DTX cycle configuration of the first cell includes a DTX activation cycle and / or inactivation cycle configuration of the first cell, and the DRX cycle configuration of the first cell includes a DRX activation cycle and / or inactivation cycle configuration of the first cell. In some embodiments, the cell DTX cycle configuration of the first cell is used to determine PF and PO, and / or the DRX cycle configuration of the first cell is used to determine PF and PO.

[0150] In some embodiments, the number of SSBs of the first cell includes the number of SSBs actually sent in the SSB transmission opportunity set on the first cell.

[0151] In some embodiments, the SSB set of the first cell includes a set of SSBs actually transmitted in the SSB transmission opportunity set on the first cell.

[0152] In some embodiments, PO is a group of consecutive PDCCH monitoring opportunities. The number of PDCCH monitoring opportunities included in the group of PDCCH monitoring opportunities can be obtained by multiplying the number of SSBs in the first cell by the number of PDCCH monitoring opportunities corresponding to one SSB in the first cell.

[0153] In some embodiments, PEI-O is a set of consecutive PDCCH listening opportunities. The number of PDCCH listening opportunities included in this set of PDCCH listening opportunities can be obtained by multiplying the number of SSBs of the first cell and the number of PDCCH listening opportunities corresponding to one SSB of the first cell. In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the first cell is used to determine the paging search space associated with the first cell on the second cell. That is to say, in some embodiments, the terminal device can determine the paging search space associated with the first cell on the second cell based on the configuration information related to the paging channel.

[0154] In some embodiments, in the paging search space associated with the first cell on the second cell, the terminal device can monitor the PO associated with the SSB of the first cell, thereby receiving the paging message.

[0155] In some embodiments, when the configuration information related to the paging channel of the first cell is not used to determine the paging search space associated with the first cell on the second cell, the paging search space associated with the first cell on the second cell is the second cell's search space 0. That is, in some embodiments, the second cell's search space 0 is used as the default search space for the terminal device to monitor and receive paging messages.

[0156] In some embodiments, when the paging channel includes a PEI-PDCCH, configuration information related to the paging channel of the first cell is used to determine at least one of the following information: a PEI search space associated with the first cell on the second cell, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell. In other words, in some embodiments, the terminal device can determine the PEI search space associated with the first cell on the second cell based on the configuration information related to the paging channel.

[0157] In some embodiments, in the PEI search space associated with the first cell on the second cell, the terminal device can monitor the PEI-O associated with the SSB of the first cell, thereby receiving the PEI.

[0158] In some embodiments, the number of bits included in the paging indication field in the PEI-PDCCH can be obtained by multiplying the number of POs configured in the first cell and the number of subgroups included in a PO configured in the first cell.

[0159] In some embodiments, when the configuration information related to the paging channel of the first cell is not used to determine the PEI search space associated with the first cell on the second cell, the PEI search space associated with the first cell on the second cell is the second cell's search space 0. That is, in some embodiments, the second cell's search space 0 is used as the default search space for the terminal device to receive PEI by monitoring.

[0160] In some embodiments, the first configuration information is further used to determine at least one of the following information: search space 0 of the second cell and an initial downlink BWP configuration of the second cell. In some embodiments, the terminal device determines the paging search space and / or PEI search space associated with the first cell on the second cell based on search space 0 of the second cell and / or the initial downlink BWP configuration of the second cell.

[0161] In some embodiments, the terminal device determines search space No. 0 of the second cell as the paging search space and / or PEI search space associated with the first cell on the second cell.

[0162] In some embodiments, the terminal device determines the paging search space and / or PEI search space associated with the first cell on the second cell based on the initial downlink BWP configuration of the second cell.

[0163] In some embodiments, the terminal device determines the search space No. 0 of the second cell as the paging search space and / or PEI search space associated with the first cell on the second cell, and, based on the initial downlink BWP configuration of the second cell, determines the position of the paging search space and / or PEI search space associated with the first cell on the second cell in the initial downlink BWP.

[0164] For example, please refer to Figure 7, which shows a schematic diagram of monitoring paging opportunities on the second cell provided by another embodiment of the present application. As shown in Figure 7, the terminal device receives the first configuration information sent by the network device of the first cell, and the first configuration information includes the second cell identifier and the configuration information related to the paging channel of the first cell on the second cell. Among them, the SSB set sent on the first cell is {SSB0, SSB1}, and the SSB set sent on the second cell is {SSB0', SSB1', SSB2', SSB3'}. Specifically, the terminal device can determine the position of the PO associated with {SSB0, SSB1} of the first cell on the second cell according to the first configuration information. Therefore, the terminal device can monitor the PO associated with SSB0 or ​​SSB1 of the first cell on the second cell.

[0165] In the above embodiment, the PEI-O and / or PO configured for the first cell are configured on the second cell. The network equipment of the first cell transmits configuration information related to the paging channel of the first cell to the terminal device. The terminal device can obtain paging messages by monitoring the PEI-O and / or PO configured for the first cell on the second cell. During this process, the network equipment of the first cell can disable transmission of the corresponding paging channel, thereby achieving network energy conservation.

[0166] In some embodiments, the PEI-O of the second cell is associated with the PO of the second cell.

[0167] The association between the PEI-O of the second cell and the PO of the second cell means that the PEI obtained by monitoring the PEI-O of the second cell can indicate whether the terminal device needs to receive paging on the PO of the second cell.

[0168] In some embodiments, the terminal device monitors the PEI-PDCCH at the PEI-O of the second cell according to the first configuration information.

[0169] In some embodiments, the terminal device determines whether to monitor the P-PDCCH in the PO of the second cell based on the monitoring result of the PEI-PDCCH.

[0170] In some embodiments, when the monitoring result of PEI-PDCCH is that PEI-O of the second cell monitors the first PEI, and the first PEI instructs the terminal device to monitor PO, the terminal device monitors P-PDCCH at PO of the second cell.

[0171] In some embodiments, when the monitoring result of PEI-PDCCH is that the PEI-O of the second cell monitors the first PEI and the first PEI does not instruct the terminal device to monitor PO, or when the monitoring result of PEI-PDCCH is that the PEI-O of the second cell does not monitor PEI, the terminal device does not monitor P-PDCCH at the PO of the second cell.

[0172] In the above embodiment, the terminal device can monitor the PEI-PDCCH via the PEI-O on the second cell and the P-PDCCH via the PO on the second cell to obtain the paging message. During this process, the network equipment of the first cell can disable the transmission of PEI and paging messages, thereby achieving network energy saving.

[0173] In some embodiments, the PEI-O of the second cell is associated with the PO of the first cell.

[0174] The association between the PEI-O of the second cell and the PO of the first cell means that the PEI obtained by monitoring the PEI-O of the second cell can indicate whether the terminal device needs to receive paging on the PO of the first cell.

[0175] In some embodiments, the terminal device monitors the PEI-PDCCH at the PEI-O of the second cell according to the first configuration information.

[0176] In some embodiments, the terminal device determines whether to monitor the P-PDCCH in the PO of the first cell based on the monitoring result of the PEI-PDCCH.

[0177] In some embodiments, when the monitoring result of PEI-PDCCH is that PEI-O of the second cell monitors the second PEI and the second PEI instructs the terminal device to monitor PO, the terminal device monitors P-PDCCH at PO of the first cell.

[0178] In some embodiments, when the monitoring result of PEI-PDCCH is that the second PEI is monitored at PEI-O of the second cell and the second PEI does not indicate that the terminal device monitors PO, or when the monitoring result of PEI-PDCCH is that the PEI is not monitored at PEI-O of the second cell, the terminal device does not monitor P-PDCCH at PO of the first cell.

[0179] In the above embodiment, the terminal device can monitor the PEI-PDCCH via the PEI-O on the second cell and the P-PDCCH via the PO on the first cell to obtain the paging message. During this process, the network equipment of the first cell can turn off the transmission of the PEI, thereby achieving network energy saving.

[0180] In some embodiments, the PEI-O of the first cell is associated with the PO of the second cell.

[0181] The association between the PEI-O of the first cell and the PO of the second cell means that the PEI obtained by monitoring the PEI-O of the first cell can indicate whether the terminal device needs to receive paging on the PO of the second cell.

[0182] In some embodiments, the terminal device monitors the PEI-PDCCH at the PEI-O of the first cell.

[0183] In some embodiments, the terminal device determines whether to monitor the P-PDCCH in the PO of the second cell based on the monitoring result of the PEI-PDCCH.

[0184] In some embodiments, when the monitoring result of PEI-PDCCH of the terminal device is that the PEI-O of the first cell monitors the third PEI and the third PEI instructs the terminal device to monitor PO, the terminal device monitors P-PDCCH at PO of the second cell.

[0185] In some embodiments, when the monitoring result of PEI-PDCCH is that the PEI-O of the first cell monitors the third PEI and the third PEI does not instruct the terminal device to monitor PO, or when the monitoring result of PEI-PDCCH is that the PEI-O of the first cell does not monitor PEI, P-PDCCH is not monitored at the PO of the second cell.

[0186] In the above embodiment, the terminal device can monitor the PEI-PDCCH via the PEI-O on the first cell and the P-PDCCH via the PO on the second cell to obtain the paging message. During this process, the network equipment of the first cell can turn off the sending of paging messages, thereby achieving network energy saving.

[0187] The technical solution provided by the embodiments of the present application involves a terminal device receiving first configuration information sent by a network device in a first cell and then monitoring a paging channel in a second cell based on the first configuration information, which includes configuration information related to the paging channel. This allows the terminal device to receive paging messages through the second cell even when the first cell does not transmit a paging channel. This enhanced paging mechanism can save network device energy while maintaining network communication performance.

[0188] Please refer to Figure 8, which shows a flow chart of a wireless communication method provided by another embodiment of the present application. The execution subject of each step of the method is a network device of the first cell. The method may include step 810.

[0189] Step 810: The network device of the first cell sends first configuration information to the terminal device. The first configuration information includes configuration information related to the paging channel. The first configuration information is used by the terminal device to monitor the paging channel in the second cell.

[0190] In some embodiments, the first configuration information includes an identifier of the second cell.

[0191] In some embodiments, the first cell is a primary cell of the terminal device, and the second cell is a secondary cell of the terminal device.

[0192] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the second cell.

[0193] In some embodiments, the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: search space No. 0 of the second cell, the length of the paging DRX cycle of the second cell, the cell DTX cycle configuration of the second cell, the cell DRX cycle configuration of the second cell, the initial downlink BWP configuration of the second cell, the number of SSBs of the second cell, the SSB set of the second cell, the number of PDCCH monitoring opportunities corresponding to an SSB of the second cell, and the TCI status of the first cell.

[0194] In some embodiments, when the paging channel includes a P-PDCCH, the configuration information related to the paging channel of the second cell is also used to determine the paging search space of the second cell.

[0195] In some embodiments, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the second cell is also used to determine at least one of the following information: the PEI search space of the second cell, the number of POs configured in the second cell, and the number of subgroups included in a PO configured in the second cell.

[0196] In some embodiments, the TCI state of the first cell is used to determine the beam of a terminal device in the first cell when monitoring a paging channel on the second cell.

[0197] In some embodiments, the TCI status of the first cell is used to determine an SSB in the second cell that has a QCL relationship with the SSB sent by the first cell.

[0198] In some embodiments, the TCI status of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell.

[0199] In some embodiments, the TCI status of the first cell is used to determine the SSB in the second cell to be monitored by the terminal device.

[0200] In some embodiments, the configuration information related to the paging channel includes configuration information related to the paging channel of the first cell.

[0201] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0202] In some embodiments, when the paging channel includes a P-PDCCH, configuration information related to the paging channel of the first cell is further used to determine a paging search space associated with the first cell on the second cell.

[0203] In some embodiments, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine at least one of the following information: the PEI search space associated with the first cell on the second cell, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0204] In some embodiments, the first configuration information is also used to determine at least one of the following information: search space No. 0 of the second cell, initial downlink BWP configuration of the second cell, and search space No. 0 of the second cell and / or initial downlink BWP configuration of the second cell are used to determine the paging search space and / or PEI search space associated with the first cell on the second cell.

[0205] In some embodiments, the PEI-O of the second cell is associated with the PO of the second cell.

[0206] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH at the PEI-O of the second cell.

[0207] In some embodiments, the first configuration information is used to configure the terminal device to monitor the P-PDCCH in the PO of the second cell.

[0208] In some embodiments, the PEI-O of the second cell is associated with the PO of the first cell.

[0209] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH at the PEI-O of the second cell.

[0210] In some embodiments, the first configuration information is used to configure the terminal device to monitor the P-PDCCH in the PO of the first cell.

[0211] In some embodiments, the PEI-O of the first cell is associated with the PO of the second cell.

[0212] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH at the PEI-O of the first cell.

[0213] In some embodiments, the first configuration information is used to configure the terminal device to monitor the P-PDCCH in the PO of the second cell.

[0214] The technical solution provided by the embodiments of the present application involves a network device in a first cell sending first configuration information to a terminal device. The first configuration information includes configuration information related to a paging channel. The first configuration information is used by the terminal device to monitor the paging channel in a second cell. This allows the terminal device to receive paging messages through the second cell even when the first cell does not transmit a paging channel. In other words, through this enhanced paging mechanism, energy consumption of network devices can be reduced while ensuring network communication performance.

[0215] It should be noted that in the above method embodiments, the steps performed by the terminal device can be independently implemented as a wireless communication method on the terminal device side; the steps performed by the network device can be independently implemented as a wireless communication method on the network device side. For details not disclosed in any of the embodiments, please refer to the other embodiments.

[0216] Please refer to Figure 9, which shows a flowchart of a wireless communication method provided by another embodiment of the present application. The execution subject of each step of the method is a terminal device. The method may include at least one step of steps 910-920.

[0217] In step 910, the terminal device receives first configuration information sent by the network device of the first cell. The first configuration information includes configuration information related to the paging channel and first downlink BWP configuration information. The first downlink BWP configuration information is used to determine the first downlink BWP.

[0218] The first downlink BWP is configured by the network device and is used to send the BWP of the paging channel.

[0219] In some embodiments, the first downlink BWP is configured by a network device of a first cell. In other embodiments, the first downlink BWP is configured by a second cell different from the first cell.

[0220] Step 920: The terminal device monitors the paging channel on the first downlink BWP according to the first configuration information.

[0221] In some embodiments, the terminal device monitors the P-PDCCH at the PO of the first downlink BWP.

[0222] In some embodiments, the terminal device monitors the PEI-PDCCH at the PEI-O of the first downlink BWP.

[0223] In some embodiments, the configuration information related to the paging channel is configuration information related to the paging channel of the first cell.

[0224] In some embodiments, the terminal device monitors the paging channel on the first downlink BWP according to configuration information related to the paging channel of the first cell.

[0225] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0226] During the paging DRX cycle of the first cell, the terminal device can monitor the paging channel on the first cell.In some embodiments, the length of the paging DRX cycle of the first cell is used to determine the PF and the PO.

[0227] The cell DTX cycle configuration of the first cell includes a DTX activation cycle and / or inactivation cycle configuration of the first cell, and the DRX cycle configuration of the first cell includes a DRX activation cycle and / or inactivation cycle configuration of the first cell. In some embodiments, the cell DTX cycle configuration of the first cell is used to determine PF and PO, and / or the DRX cycle configuration of the first cell is used to determine PF and PO.

[0228] In some embodiments, the number of SSBs of the first cell includes the number of SSBs actually transmitted in the SSB transmission opportunity set of the first cell.

[0229] In some embodiments, the SSB set of the first cell includes a set of SSBs actually transmitted in the first cell SSB transmission opportunity set.

[0230] In some embodiments, PO is a group of consecutive PDCCH monitoring opportunities. The number of PDCCH monitoring opportunities included in the group of PDCCH monitoring opportunities can be obtained by multiplying the number of SSBs in the first cell by the number of PDCCH monitoring opportunities corresponding to one SSB in the first cell.

[0231] In some embodiments, PEI-O is a group of consecutive PDCCH monitoring opportunities. The number of PDCCH monitoring opportunities included in the group of PDCCH monitoring opportunities can be obtained by multiplying the number of SSBs in the first cell by the number of PDCCH monitoring opportunities corresponding to one SSB in the first cell.

[0232] In some embodiments, when the paging channel includes a P-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine the paging search space on the first downlink BWP. That is, in some embodiments, the terminal device can determine the paging search space on the first downlink BWP based on the configuration information related to the paging channel.

[0233] In some embodiments, the terminal device may receive a paging message by monitoring the paging search space on the first downlink BWP.

[0234] In some embodiments, when the paging channel includes a PEI-PDCCH, the configuration information related to the paging channel of the first cell is further used to determine at least one of the following information: a PEI search space on the first downlink BWP, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell. In other words, in some embodiments, the terminal device can determine the PEI search space on the first downlink BWP based on the configuration information related to the paging channel.

[0235] In some embodiments, the terminal device may receive the PEI by monitoring the PEI search space on the first downlink BWP. In some embodiments, the number of bits included in the paging indication field in the PEI-PDCCH may be obtained by multiplying the number of POs configured in the first cell by the number of subgroups included in a PO configured in the first cell.

[0236] In some embodiments, the bandwidth of the first downlink BWP does not exceed a preset bandwidth. For example, the bandwidth of the first downlink BWP does not exceed 5 MHz.

[0237] In some embodiments, the first downlink BWP is a downlink BWP on the first cell.

[0238] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell.

[0239] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is a portion of the frequency domain resources in the initial downlink BWP on the first cell. For example, the starting position of the first downlink BWP is the same as the starting position of the initial downlink BWP on the first cell, and the ending position of the first downlink BWP is within the initial downlink BWP on the first cell. For another example, the ending position of the first downlink BWP is the same as the ending position of the initial downlink BWP on the first cell, and the starting position of the first downlink BWP is within the initial downlink BWP on the first cell.

[0240] In the above embodiment, the transmission of the paging channel can be achieved by utilizing the downlink BWP with a smaller bandwidth in the first cell, thereby saving energy consumption of the network equipment.

[0241] In some embodiments, the first downlink BWP is a downlink BWP on the second cell.

[0242] In some embodiments, the second cell and the first cell are different cells.

[0243] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell.

[0244] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is a portion of the frequency domain resources in the initial downlink BWP on the second cell. For example, the starting position of the first downlink BWP is the same as the starting position of the initial downlink BWP on the second cell, and the ending position of the first downlink BWP is within the initial downlink BWP on the second cell. For another example, the ending position of the first downlink BWP is the same as the ending position of the initial downlink BWP on the second cell, and the starting position of the first downlink BWP is within the initial downlink BWP on the second cell.

[0245] In the above embodiment, the transmission of the paging channel can be achieved by utilizing the downlink BWP with a smaller bandwidth in the second cell, thereby saving energy consumption of the network equipment.

[0246] For example, please refer to Figure 10, which shows a schematic diagram of a terminal device provided by an embodiment of the present application monitoring a paging opportunity on the first downlink bandwidth part. As shown in Figure 10, the terminal device receives the first configuration information sent by the network device of the first cell, and the first configuration information includes the first downlink BWP configuration information on the first cell and the configuration information related to the paging channel of the first cell. Among them, the SSB set sent on the first cell is {SSB0, SSB1}, and the bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the first cell. The terminal device can determine the position of the POs associated with {SSB0, SSB1} of the first cell on the first downlink BWP based on the first configuration information. Therefore, the terminal device can monitor the POs associated with SSB0 or ​​SSB1 of the first cell on the first downlink BWP.

[0247] The technical solution provided by the embodiments of the present application enables the terminal device to receive paging channel configuration information and first downlink BWP configuration information used to determine a first downlink BWP, and then monitor the paging channel on the first downlink BWP. This enables the terminal device to use the first downlink BWP to receive paging messages. In this process, the network device can configure a small-bandwidth BWP as the first downlink BWP based on the actual needs of sending the paging channel, thereby saving network device energy consumption while ensuring network communication performance.

[0248] Please refer to Figure 11, which shows a flow chart of a wireless communication method provided by another embodiment of the present application. The execution subject of each step of the method is a network device of the first cell. The method may include step 1110.

[0249] In step 1110, the network device of the first cell sends first configuration information to the terminal device. The first configuration information includes configuration information related to the paging channel and first downlink BWP configuration information. The first downlink BWP configuration information is used to determine the first downlink BWP. The first configuration information is used for the terminal device to monitor the paging channel on the first downlink BWP.

[0250] In some embodiments, the configuration information related to the paging channel is configuration information related to the paging channel of the first cell.

[0251] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0252] In some embodiments, when the paging channel includes a P-PDCCH, configuration information related to the paging channel of the first cell is further used to determine a paging search space on the first downlink BWP.

[0253] In some embodiments, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine at least one of the following information: the PEI search space on the first downlink BWP, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0254] In some embodiments, the first downlink BWP is a downlink BWP on the first cell.

[0255] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell.

[0256] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the first cell.

[0257] In some embodiments, the first downlink BWP is a downlink BWP on the second cell.

[0258] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell.

[0259] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the second cell.

[0260] The technical solution provided by the embodiment of the present application involves a network device in a first cell sending first configuration information to a terminal device. The first configuration information includes configuration information related to a paging channel and first downlink BWP configuration information. The first downlink BWP configuration information is used to determine a first downlink BWP, which is used by the terminal device to monitor the paging channel on the first downlink BWP. This enables the terminal device to receive paging messages using the first downlink BWP. In the above process, the network device can configure a small-bandwidth BWP as the first downlink BWP based on the actual needs of sending the paging channel, thereby saving energy consumption of the network device while ensuring network communication performance.

[0261] It should be noted that in the above method embodiments, the steps performed by the terminal device can be independently implemented as a wireless communication method on the terminal device side; the steps performed by the network device can be independently implemented as a wireless communication method on the network device side. For details not disclosed in any of the embodiments, please refer to the other embodiments.

[0262] The following are embodiments of the device of the present application. For details not described in detail in the embodiments of the device of the present application, please refer to the embodiments of the method of the present application.

[0263] Please refer to Figure 12, which shows a block diagram of a wireless communication device provided by one embodiment of the present application. The device has the function of implementing the wireless communication method on the terminal device side described above. The function can be implemented by hardware or by hardware executing corresponding software. The device can be the terminal device described above, or it can be set in a terminal device. As shown in Figure 12, the device 1200 may include: a receiving module 1210.

[0264] A receiving module 1210 is configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel;

[0265] The receiving module 1210 is further configured to monitor the paging channel on the second cell according to the first configuration information.

[0266] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the second cell.

[0267] In some embodiments, the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: search space 0 of the second cell, the length of the paging DRX cycle of the second cell, the cell DTX cycle configuration of the second cell, the cell DRX cycle configuration of the second cell, the initial downlink BWP configuration of the second cell, the number of SSBs of the second cell, the SSB set of the second cell, the number of PDCCH listening opportunities corresponding to an SSB of the second cell, and the TCI status of the first cell.

[0268] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the second cell is used to determine the paging search space of the second cell; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: the PEI search space of the second cell, the number of POs configured in the second cell, and the number of subgroups included in a PO configured in the second cell.

[0269] In some embodiments, the TCI status of the first cell is used to determine the beam of a terminal device in the first cell when monitoring a paging channel on the second cell; or, the TCI status of the first cell is used to determine an SSB in the second cell that has a QCL relationship with the SSB sent by the first cell; or, the TCI status of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell; or, the TCI status of the first cell is used to determine the SSB in the second cell to be monitored by the terminal device.

[0270] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the first cell.

[0271] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0272] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the first cell is used to determine the paging search space associated with the first cell on the second cell; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the PEI search space associated with the first cell on the second cell, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0273] In some embodiments, the first configuration information is further used to determine at least one of the following information: search space 0 of the second cell and an initial downlink BWP configuration of the second cell. The receiving module 1220 is further configured to determine a paging search space and / or a PEI search space associated with the first cell on the second cell based on search space 0 of the second cell and / or the initial downlink BWP configuration of the second cell.

[0274] In some embodiments, the paging advance indication opportunity PEI-O of the second cell is associated with the PO of the second cell.

[0275] In some embodiments, the receiving module 1210 is configured to monitor the PEI-PDCCH at the PEI-O of the second cell according to the first configuration information. The receiving module 1210 is further configured to determine whether to monitor the P-PDCCH at the PO of the second cell according to the monitoring result of the PEI-PDCCH.

[0276] In some embodiments, the receiving module 1210 is configured to monitor the P-PDCCH at the PO of the second cell when the result of monitoring the PEI-PDCCH is that the first PEI is monitored at the PEI-O of the second cell, and the first PEI instructs the terminal device to monitor the PO. Alternatively, when the result of monitoring the PEI-PDCCH is that the first PEI is monitored at the PEI-O of the second cell and the first PEI does not instruct the terminal device to monitor the PO, or when the result of monitoring the PEI-PDCCH is that the PEI is not monitored at the PEI-O of the second cell, not monitor the P-PDCCH at the PO of the second cell.

[0277] In some embodiments, the PEI-O of the second cell is associated with the PO of the first cell.

[0278] In some embodiments, the receiving module 1210 is configured to monitor the PEI-PDCCH at the PEI-O of the second cell according to the first configuration information. The receiving module 1210 is further configured to determine whether to monitor the P-PDCCH at the PO of the first cell according to the monitoring result of the PEI-PDCCH.

[0279] In some embodiments, the receiving module 1210 is used to monitor the P-PDCCH at the PO of the first cell when the monitoring result of the PEI-PDCCH is that the second PEI is monitored at the PEI-O of the second cell and the second PEI instructs the terminal device to monitor the PO; or, when the monitoring result of the PEI-PDCCH is that the second PEI is monitored at the PEI-O of the second cell and the second PEI does not instruct the terminal device to monitor the PO, or when the monitoring result of the PEI-PDCCH is that the PEI is not monitored at the PEI-O of the second cell, not monitor the P-PDCCH at the PO of the first cell.

[0280] In some embodiments, the PEI-O of the first cell is associated with the PO of the second cell.

[0281] In some embodiments, the receiving module 1210 is further configured to monitor the PEI-PDCCH at the PEI-O of the first cell; and determine whether to monitor the P-PDCCH at the PO of the second cell according to the monitoring result of the PEI-PDCCH.

[0282] In some embodiments, the receiving module 1210 is used to monitor the P-PDCCH at the PO of the second cell when the monitoring result of the PEI-PDCCH is that the third PEI is monitored at the PEI-O of the first cell and the third PEI instructs the terminal device to monitor the PO; or, when the monitoring result of the PEI-PDCCH is that the third PEI is monitored at the PEI-O of the first cell and the third PEI does not instruct the terminal device to monitor the PO, or when the monitoring result of the PEI-PDCCH is that the PEI is not monitored at the PEI-O of the first cell, not monitor the P-PDCCH at the PO of the second cell.

[0283] In some embodiments, the first configuration information includes an identifier of the second cell.

[0284] In some embodiments, the first cell is a primary cell of the terminal device, and the second cell is a secondary cell of the terminal device.

[0285] Please refer to Figure 13, which shows a block diagram of a wireless communication device provided by another embodiment of the present application. This device has the function of implementing the wireless communication method on the network device side described above. The function can be implemented by hardware or by hardware executing corresponding software. The device can be the network device described above, or it can be set in the network device. As shown in Figure 13, the device 1300 can include: a sending module 1310.

[0286] The sending module 1310 is configured to send first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel, and the first configuration information is used by the terminal device to monitor the paging channel on a second cell.

[0287] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the second cell.

[0288] In some embodiments, the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: search space 0 of the second cell, the length of the paging DRX cycle of the second cell, the cell DTX cycle configuration of the second cell, the cell DRX cycle configuration of the second cell, the initial downlink BWP configuration of the second cell, the number of SSBs of the second cell, the SSB set of the second cell, the number of PDCCH monitoring opportunities corresponding to an SSB of the second cell, and the TCI status of the first cell.

[0289] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the second cell is also used to determine the paging search space of the second cell; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the second cell is also used to determine at least one of the following information: the PEI search space of the second cell, the number of POs configured in the second cell, and the number of subgroups included in a PO configured in the second cell.

[0290] In some embodiments, the TCI status of the first cell is used to determine the beam of a terminal device in the first cell when monitoring a paging channel on the second cell; or, the TCI status of the first cell is used to determine an SSB in the second cell that has a QCL relationship with the SSB sent by the first cell; or, the TCI status of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell; or, the TCI status of the first cell is used to determine the SSB in the second cell to be monitored by the terminal device.

[0291] In some embodiments, the paging channel-related configuration information includes paging channel-related configuration information of the first cell.

[0292] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0293] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine the paging search space associated with the first cell on the second cell; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine at least one of the following information: the PEI search space associated with the first cell on the second cell, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0294] In some embodiments, the first configuration information is also used to determine at least one of the following information: search space No. 0 of the second cell, initial downlink BWP configuration of the second cell, and search space No. 0 of the second cell and / or initial downlink BWP configuration of the second cell are used to determine the paging search space and / or PEI search space associated with the first cell on the second cell.

[0295] In some embodiments, the paging advance indication opportunity PEI-O of the second cell is associated with the PO of the second cell.

[0296] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH in the PEI-O of the second cell.

[0297] In some embodiments, the first configuration information is used to configure the terminal device to monitor P-PDCCH in the PO of the second cell.

[0298] In some embodiments, the PEI-O of the second cell is associated with the PO of the first cell.

[0299] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH in the PEI-O of the second cell.

[0300] In some embodiments, the first configuration information is used to configure the terminal device to monitor P-PDCCH in the PO of the first cell.

[0301] In some embodiments, the PEI-O of the first cell is associated with the PO of the second cell.

[0302] In some embodiments, the first configuration information is used to configure the terminal device to monitor the PEI-PDCCH in the PEI-O of the first cell.

[0303] In some embodiments, the first configuration information is used to configure the terminal device to monitor P-PDCCH in the PO of the second cell.

[0304] In some embodiments, the first configuration information includes an identifier of the second cell.

[0305] In some embodiments, the first cell is a primary cell of the terminal device, and the second cell is a secondary cell of the terminal device.

[0306] Please refer to Figure 14, which shows a block diagram of a wireless communication device provided by another embodiment of the present application. The device has the function of implementing the wireless communication method on the terminal device side described above. The function can be implemented by hardware or by hardware executing corresponding software. The device can be the terminal device described above, or it can be set in a terminal device. As shown in Figure 14, the device 1400 may include: a receiving module 1410.

[0307] The receiving module 1410 is configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel and first downlink BWP configuration information, where the first downlink BWP configuration information is used to determine a first downlink BWP.

[0308] The receiving module 1410 is further configured to monitor the paging channel on the first downlink BWP according to the first configuration information.

[0309] In some embodiments, the paging channel-related configuration information is configuration information related to the paging channel of the first cell. The receiving module 1410 is configured to monitor the paging channel on the first downlink BWP according to the configuration information related to the paging channel of the first cell.

[0310] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0311] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine the paging search space on the first downlink BWP; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine at least one of the following information: the PEI search space on the first downlink BWP, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0312] In some embodiments, the first downlink BWP is a downlink BWP on the first cell.

[0313] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of an initial downlink BWP on the first cell.

[0314] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the first cell.

[0315] In some embodiments, the first downlink BWP is a downlink BWP on the second cell.

[0316] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell.

[0317] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the second cell.

[0318] Please refer to Figure 15, which shows a block diagram of a wireless communication device provided by another embodiment of the present application. This device has the function of implementing the wireless communication method on the network device side described above. The function can be implemented by hardware or by hardware executing corresponding software. The device can be the network device described above, or it can be set in the network device. As shown in Figure 15, the device 1500 can include: a sending module 1510.

[0319] The sending module 1510 is used to send first configuration information to the terminal device, where the first configuration information includes configuration information related to the paging channel and first downlink BWP configuration information. The first downlink BWP configuration information is used to determine the first downlink BWP, and the first configuration information is used by the terminal device to monitor the paging channel on the first downlink BWP.

[0320] In some embodiments, the paging channel-related configuration information is the paging channel-related configuration information of the first cell.

[0321] In some embodiments, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to an SSB of the first cell.

[0322] In some embodiments, when the paging channel includes P-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine the paging search space on the first downlink BWP; and / or, when the paging channel includes PEI-PDCCH, the configuration information related to the paging channel of the first cell is also used to determine at least one of the following information: the PEI search space on the first downlink BWP, the number of POs configured in the first cell, and the number of subgroups included in a PO configured in the first cell.

[0323] In some embodiments, the first downlink BWP is a downlink BWP on the first cell.

[0324] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of an initial downlink BWP on the first cell.

[0325] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the first cell.

[0326] In some embodiments, the first downlink BWP is a downlink BWP on the second cell.

[0327] In some embodiments, the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell.

[0328] In some embodiments, when the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is part of the frequency domain resources in the initial downlink BWP on the second cell.

[0329] It should be noted that, when the device provided in the above embodiment realizes its function, it only uses the division of the above-mentioned functional modules as an example. In actual application, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0330] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here. For details not described in detail in the embodiment of the device, reference can be made to the above method embodiment.

[0331] Please refer to Figure 16, which shows a schematic diagram of the structure of a terminal device provided by one embodiment of the present application. Terminal device 1600 can be used to execute the method steps performed by the terminal device in the above embodiments. Terminal device 1600 may include: a processor 1601, a transceiver 1602, and a memory 1603. The processor is used to control transmission and / or reception. Transceiver 1502 can be used to implement transmission and / or reception functions, such as implementing the functions of receiving module 1210 or receiving module 1410 described above.

[0332] The processor 1601 includes one or more processing cores. The processor 1601 executes various functional applications and information processing by running software programs and modules.

[0333] The transceiver 1602 may include a receiver and a transmitter. For example, the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0334] The memory 1603 may be connected to the processor 1601 and the transceiver 1602 .

[0335] The memory 1603 may be used to store a computer program executed by the processor, and the processor 1601 is used to execute the computer program to implement each step in the above method embodiment.

[0336] In addition, memory 1603 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0337] In some embodiments, the transceiver 1602 is configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel; and monitor the paging channel on the second cell according to the first configuration information.

[0338] In some embodiments, the transceiver 1602 is used to receive first configuration information sent by a network device of a first cell, wherein the first configuration information includes configuration information related to a paging channel and first downlink BWP configuration information, and the first downlink BWP configuration information is used to determine a first downlink BWP; according to the first configuration information, the paging channel is monitored on the first downlink BWP.

[0339] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0340] Please refer to Figure 17, which shows a schematic diagram of the structure of a network device provided by one embodiment of the present application. Network device 1700 can be used to execute the method steps performed by the network device in the above embodiments. Network device 1700 may include: a processor 1701, a transceiver 1702, and a memory 1703. The processor 1701 can be used to control transmission and / or reception. The transceiver 1702 can be used to implement transmission and / or reception functions, such as the functions of the above-mentioned transmission module 1310 or the transmission module 1510.

[0341] The processor 1701 includes one or more processing cores. The processor 1701 executes various functional applications and information processing by running software programs and modules.

[0342] The transceiver 1702 may include a receiver and a transmitter. For example, the transceiver 1702 may include a wired communication component, which may include a wired communication chip and a wired interface (such as an optical fiber interface). Alternatively, the transceiver 1702 may also include a wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0343] The memory 1703 may be connected to the processor 1701 and the transceiver 1702 .

[0344] The memory 1703 may be used to store a computer program executed by the processor, and the processor 1701 is used to execute the computer program to implement each step performed by the network device in the above method embodiment.

[0345] In addition, memory 1703 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0346] In some embodiments, the transceiver 1702 is used to send first configuration information to the terminal device, where the first configuration information includes configuration information related to the paging channel, and the first configuration information is used for the terminal device to monitor the paging channel on the second cell.

[0347] In some embodiments, the transceiver 1702 is also used to send first configuration information to the terminal device, the first configuration information including configuration information related to the paging channel and first downlink BWP configuration information, the first downlink BWP configuration information is used to determine the first downlink BWP, and the first configuration information is used for the terminal device to monitor the paging channel on the first downlink BWP.

[0348] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0349] The embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side. In some embodiments, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc. Among them, random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0350] An embodiment of the present application also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0351] An embodiment of the present application also provides a computer program product, which includes a computer program, and the computer program is stored in a computer-readable storage medium. The processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned wireless communication method on the terminal device side, or to implement the above-mentioned wireless communication method on the network device side.

[0352] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0353] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0354] In some embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0355] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0356] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0357] The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

[0358] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0359] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0360] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A wireless communication method, characterized in that, The method is executed by a terminal device, and the method includes: Receiving first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel; Listening for the paging channel on a second cell according to the first configuration information.

2. The method according to claim 1, characterized in that, The configuration information related to the paging channel includes the configuration information related to the paging channel of the second cell.

3. The method according to claim 2, characterized in that, The configuration information related to the paging channel of the second cell is used to determine at least one of the following information: the 0th search space of the second cell, the length of the paging discontinuous reception (DRX) period of the second cell, the cell discontinuous transmission (DTX) period configuration of the second cell, the cell DRX period configuration of the second cell, the initial downlink bandwidth part (BWP) configuration of the second cell, the number of synchronization signal blocks (SSBs) of the second cell, the SSB set of the second cell, the number of physical downlink control channel (PDCCH) monitoring opportunities corresponding to one SSB of the second cell, the transmission configuration indication (TCI) state of the first cell.

4. The method according to claim 2 or 3, characterized in that, When the paging channel includes a paging - physical downlink control channel (P - PDCCH), the configuration information related to the paging channel of the second cell is used to determine the paging search space of the second cell; And / or When the paging channel includes a paging early indication - physical downlink control channel (PEI - PDCCH), the configuration information related to the paging channel of the second cell is used to determine at least one of the following information: the PEI search space of the second cell, the number of paging opportunities (POs) configured for the second cell, the number of subgroups included in one PO configured for the second cell.

5. The method according to claim 3 or 4, characterized in that, The TCI state of the first cell is used to determine the beam when the terminal device in the first cell listens for the paging channel on the second cell; or The TCI state of the first cell is used to determine the SSB in the second cell that has a quasi - co - location (QCL) relationship with the SSB sent by the first cell; Or The TCI state of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell; Or The TCI state of the first cell is used to determine the SSB in the second cell that the terminal device is to listen for.

6. The method according to claim 1, characterized in that, The configuration information related to the paging channel includes the configuration information related to the paging channel of the first cell.

7. The method according to claim 6, characterized in that, The configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX period of the first cell, the cell DTX period configuration of the first cell, the cell DRX period configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, the number of PDCCH monitoring opportunities corresponding to one SSB of the first cell.

8. The method according to claim 6 or 7, characterized in that, When the paging channel includes a P - PDCCH, the configuration information related to the paging channel of the first cell is used to determine the paging search space associated with the first cell on the second cell; And / or When the paging channel includes a PEI-PDCCH, the configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the PEI search space associated with the first cell on the second cell, the number of POs configured for the first cell, and the number of subgroups included in one PO configured for the first cell.

9. The method according to any one of claims 6 to 8, characterized in that, The first configuration information is further used to determine at least one of the following information: the search space No. 0 of the second cell, the initial downlink BWP configuration of the second cell; The method further includes: Determine the paging search space and / or the PEI search space associated with the first cell on the second cell according to the search space No. 0 of the second cell and / or the initial downlink BWP configuration of the second cell.

10. The method according to any one of claims 1 to 9, characterized in that, The paging early indication opportunity PEI-O of the second cell has an association relationship with the PO of the second cell.

11. The method according to claim 10, characterized in that, The listening to the paging channel on the second cell according to the first configuration information includes: Listening to the PEI-PDCCH in the PEI-O of the second cell according to the first configuration information; The method further includes: Determine whether to listen to the P-PDCCH in the PO of the second cell according to the listening result of the PEI-PDCCH.

12. The method according to claim 11, characterized in that, The determining whether to listen to the P-PDCCH in the PO of the second cell according to the listening result of the PEI-PDCCH includes: When the listening result of the PEI-PDCCH is that a first PEI is listened to in the PEI-O of the second cell and the first PEI instructs the terminal device to listen to the PO, listen to the P-PDCCH in the PO of the second cell; Or, When the listening result of the PEI-PDCCH is that a first PEI is listened to in the PEI-O of the second cell and the first PEI does not instruct the terminal device to listen to the PO, or when the listening result of the PEI-PDCCH is that no PEI is listened to in the PEI-O of the second cell, do not listen to the P-PDCCH in the PO of the second cell.

13. The method according to any one of claims 1 to 9, characterized in that, The PEI-O of the second cell has an association relationship with the PO of the first cell.

14. The method according to claim 13, characterized in that, The listening to the paging channel on the second cell according to the first configuration information includes: Listening to the PEI-PDCCH in the PEI-O of the second cell according to the first configuration information; The method further includes: Determine whether to listen to the P-PDCCH in the PO of the first cell according to the listening result of the PEI-PDCCH.

15. The method according to claim 14, characterized in that, The determining whether to listen to the P-PDCCH in the PO of the first cell according to the listening result of the PEI-PDCCH includes: When the listening result of the PEI-PDCCH is that a second PEI is listened to in the PEI-O of the second cell and the second PEI instructs the terminal device to listen to the PO, listen to the P-PDCCH in the PO of the first cell; Or, In a case where the monitoring result of the PEI-PDCCH is that a second PEI is monitored at the PEI-O of the second cell and the second PEI does not instruct the terminal device to monitor the PO, or in a case where the monitoring result of the PEI-PDCCH is that no PEI is monitored at the PEI-O of the second cell, the P-PDCCH is not monitored at the PO of the first cell.

16. The method according to any one of claims 1 to 9, characterized in that, The PEI-O of the first cell has an association relationship with the PO of the second cell.

17. The method according to claim 16, characterized in that, The method further includes: Monitoring the PEI-PDCCH at the PEI-O of the first cell; Determining whether to monitor the P-PDCCH at the PO of the second cell according to the monitoring result of the PEI-PDCCH.

18. The method according to claim 17, characterized in that, The determining whether to monitor the P-PDCCH at the PO of the second cell according to the monitoring result of the PEI-PDCCH includes: In a case where the monitoring result of the PEI-PDCCH is that a third PEI is monitored at the PEI-O of the first cell and the third PEI instructs the terminal device to monitor the PO, the P-PDCCH is monitored at the PO of the second cell; Or, In a case where the monitoring result of the PEI-PDCCH is that a third PEI is monitored at the PEI-O of the first cell and the third PEI does not instruct the terminal device to monitor the PO, or in a case where the monitoring result of the PEI-PDCCH is that no PEI is monitored at the PEI-O of the first cell, the P-PDCCH is not monitored at the PO of the second cell.

19. The method according to any one of claims 1 to 18, characterized in that, The first configuration information includes the identifier of the second cell.

20. The method according to any one of claims 1 to 19, characterized in that, The first cell is the primary cell of the terminal device, and the second cell is the secondary cell of the terminal device.

21. A wireless communication method, characterized in that, The method is executed by a network device of the first cell, and the method includes: Sending first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel, and the first configuration information is used for the terminal device to monitor the paging channel on the second cell.

22. The method according to claim 21, characterized in that, The configuration information related to the paging channel includes the configuration information related to the paging channel of the second cell.

23. The method according to claim 22, characterized in that, The configuration information related to the paging channel of the second cell is used to determine at least one of the following information: the 0th search space of the second cell, the length of the paging discontinuous reception DRX period of the second cell, the cell discontinuous transmission DTX period configuration of the second cell, the cell DRX period configuration of the second cell, the initial downlink bandwidth part BWP configuration of the second cell, the number of synchronization signal blocks SSBs of the second cell, the SSB set of the second cell, the number of physical downlink control channel PDCCH monitoring opportunities corresponding to one SSB of the second cell, the transmission configuration indication TCI state of the first cell.

24. The method according to claim 22 or 23, characterized in that, In a case where the paging channel includes a paging-physical downlink control channel P-PDCCH, the configuration information related to the paging channel of the second cell is further used to determine the paging search space of the second cell; And / or When the paging channel includes a Paging Early Indication - Physical Downlink Control Channel (PEI-PDCCH), the configuration information related to the paging channel of the second cell is further used to determine at least one of the following information: the PEI search space of the second cell, the number of paging opportunities (POs) configured for the second cell, and the number of subgroups included in one PO configured for the second cell.

25. The method according to claim 23 or 24, characterized in that, The TCI state of the first cell is used to determine the beam for a terminal device in the first cell when listening for the paging channel on the second cell; or, The TCI state of the first cell is used to determine the SSB in the second cell that has a Quasi-Co-Location (QCL) relationship with the SSB transmitted by the first cell; Or, The TCI state of the first cell is used to determine the association relationship between the SSB set of the first cell and the SSB set of the second cell; Or, The TCI state of the first cell is used to determine the SSB in the second cell that the terminal device is to listen for.

26. The method according to claim 21, characterized in that, The configuration information related to the paging channel includes the configuration information related to the paging channel of the first cell.

27. The method according to claim 26, characterized in that, The configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging DRX cycle of the first cell, the cell DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of SSBs of the first cell, the SSB set of the first cell, and the number of PDCCH monitoring opportunities corresponding to one SSB of the first cell.

28. The method according to claim 26 or 27, characterized in that, When the paging channel includes a P-PDCCH, the configuration information related to the paging channel of the first cell is further used to determine the paging search space associated with the first cell on the second cell; And / or, When the paging channel includes a PEI-PDCCH, the configuration information related to the paging channel of the first cell is further used to determine at least one of the following information: the PEI search space associated with the first cell on the second cell, the number of POs configured for the first cell, and the number of subgroups included in one PO configured for the first cell.

29. The method according to any one of claims 26 to 28, characterized in that, The first configuration information is further used to determine at least one of the following information: the search space No. 0 of the second cell, the initial downlink BWP configuration of the second cell, and the search space No. 0 of the second cell and / or the initial downlink BWP configuration of the second cell are used to determine the paging search space and / or PEI search space associated with the first cell on the second cell.

30. The method according to any one of claims 21 to 29, characterized in that, The Paging Early Indication Opportunity (PEI-O) of the second cell has an association relationship with the PO of the second cell.

31. The method according to claim 30, characterized in that, The first configuration information is used to configure the terminal device to listen for a PEI-PDCCH on the PEI-O of the second cell.

32. The method according to claim 30 or 31, characterized in that, The first configuration information is used to configure the terminal device to listen for a P-PDCCH on the PO of the second cell.

33. The method according to any one of claims 21 to 29, characterized in that, The PEI-O of the second cell has an association relationship with the PO of the first cell.

34. The method according to claim 33, characterized in that, The first configuration information is used to configure the terminal device to listen for a PEI-PDCCH on the PEI-O of the second cell.

35. The method according to claim 33 or 34, characterized in that, The first configuration information is used to configure the terminal device to monitor the P-PDCCH on the PO of the first cell.

36. The method according to any one of claims 21 to 29, characterized in that, There is an association relationship between the PEI-O of the first cell and the PO of the second cell.

37. The method according to claim 26, characterized in that, The first configuration information is used to configure the terminal device to monitor the PEI-PDCCH on the PEI-O of the first cell.

38. The method according to claim 36 or 37, characterized in that, The first configuration information is used to configure the terminal device to monitor the P-PDCCH on the PO of the second cell.

39. The method according to any one of claims 21 to 38, characterized in that, The first configuration information includes the identifier of the second cell.

40. The method according to any one of claims 21 to 39, characterized in that The first cell is the primary cell of the terminal device, and the second cell is the secondary cell of the terminal device.

41. A wireless communication method, characterized in that The method is executed by a terminal device, and the method includes: Receiving first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part (BWP) configuration information, and the first downlink BWP configuration information is used to determine a first downlink BWP; Monitoring the paging channel on the first downlink BWP according to the first configuration information.

42. The method according to claim 41, characterized in that The configuration information related to the paging channel is the configuration information related to the paging channel of the first cell; The monitoring the paging channel on the first downlink BWP according to the first configuration information includes: Monitoring the paging channel on the first downlink BWP according to the configuration information related to the paging channel of the first cell.

43. The method according to claim 42, characterized in that The configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging discontinuous reception (DRX) cycle of the first cell, the cell discontinuous transmission (DTX) cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of synchronization signal blocks (SSBs) of the first cell, the SSB set of the first cell, and the number of physical downlink control channel (PDCCH) monitoring opportunities corresponding to one SSB of the first cell.

44. The method according to claim 42 or 43, characterized in that When the paging channel includes a paging - physical downlink control channel (P-PDCCH), the configuration information related to the paging channel of the first cell is further used to determine the paging search space on the first downlink BWP; and / or When the paging channel includes a paging early indication - physical downlink control channel (PEI-PDCCH), the configuration information related to the paging channel of the first cell is further used to determine at least one of the following information: the PEI search space on the first downlink BWP, the number of paging opportunities (POs) configured by the first cell, and the number of subgroups included in one PO configured by the first cell.

45. The method according to any one of claims 41 to 44, characterized in that The first downlink BWP is the downlink BWP on the first cell.

46. The method according to claim 45, characterized in that The bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell.

47. The method according to claim 45 or 46, characterized in that When the bandwidth of the first downlink BWP is smaller than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is partial frequency domain resources in the initial downlink BWP on the first cell.

48. The method according to any one of claims 41 to 44, characterized in that The first downlink BWP is the downlink BWP on the second cell.

49. The method according to claim 48, characterized in that The bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the second cell.

50. The method according to claim 48 or 49, characterized in that When the bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is a partial frequency domain resource in the initial downlink BWP on the second cell.

51. A wireless communication method, characterized in that The method is executed by a network device of a first cell, and the method includes: Sending first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part BWP configuration information, the first downlink BWP configuration information is used to determine a first downlink BWP, and the first configuration information is used for the terminal device to monitor the paging channel on the first downlink BWP.

52. The method according to claim 51, characterized in that The configuration information related to the paging channel is the configuration information related to the paging channel of the first cell.

53. The method according to claim 52, characterized in that The configuration information related to the paging channel of the first cell is used to determine at least one of the following information: the length of the paging discontinuous reception DRX cycle of the first cell, the cell discontinuous transmission DTX cycle configuration of the first cell, the cell DRX cycle configuration of the first cell, the number of synchronization signal blocks SSBs of the first cell, the SSB set of the first cell, and the number of physical downlink control channel PDCCH monitoring opportunities corresponding to one SSB of the first cell.

54. The method according to claim 52 or 53, characterized in that When the paging channel includes a paging - physical downlink control channel P - PDCCH, the configuration information related to the paging channel of the first cell is further used to determine the paging search space on the first downlink BWP; and / or When the paging channel includes a paging early indication - physical downlink control channel PEI - PDCCH, the configuration information related to the paging channel of the first cell is further used to determine at least one of the following information: the PEI search space on the first downlink BWP, the number of paging opportunities POs configured by the first cell, and the number of subgroups included in one PO configured by the first cell.

55. The method according to any one of claims 51 to 54, characterized in that, The first downlink BWP is the downlink BWP on the first cell.

56. The method according to claim 55, characterized in that, The bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the first cell.

57. The method according to claim 55 or 56, characterized in that, When the bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the first cell, the first downlink BWP is a partial frequency domain resource in the initial downlink BWP on the first cell.

58. The method according to any one of claims 51 to 54, characterized in that, The first downlink BWP is the downlink BWP on the second cell.

59. The method according to claim 58, characterized in that, The bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the second cell.

60. The method according to claim 58 or 59, characterized in that, When the bandwidth of the first downlink BWP is less than the bandwidth of the initial downlink BWP on the second cell, the first downlink BWP is a partial frequency domain resource in the initial downlink BWP on the second cell.

61. A wireless communication device, characterized in that, The apparatus includes: A receiving module, configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel; The receiving module is further configured to monitor the paging channel on the second cell according to the first configuration information.

62. A wireless communication device, characterized in that, The apparatus includes: A sending module, configured to send first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel, and the first configuration information is used for the terminal device to monitor the paging channel on a second cell.

63. A wireless communication device, characterized in that, The apparatus includes: A receiving module, configured to receive first configuration information sent by a network device of a first cell, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part (BWP) configuration information, and the first downlink BWP configuration information is used to determine a first downlink BWP; The receiving module is further configured to monitor the paging channel on the first downlink BWP according to the first configuration information.

64. A wireless communication device, characterized in that, The apparatus includes: A sending module, configured to send first configuration information to a terminal device, where the first configuration information includes configuration information related to a paging channel and first downlink bandwidth part (BWP) configuration information, the first downlink BWP configuration information is used to determine a first downlink BWP, and the first configuration information is used for the terminal device to monitor the paging channel on the first downlink BWP.

65. A communication device, characterized in that, The communication device includes a processor and a memory, where a computer program is stored in the memory, and the processor executes the computer program to implement the method according to any one of claims 1 to 20, or implement the method according to any one of claims 21 to 40, or implement the method according to any one of claims 41 to 50, or implement the method according to any one of claims 51 to 60.

66. A computer-readable storage medium, characterized in that, A computer program is stored in the storage medium, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 20, or implement the method according to any one of claims 21 to 40, or implement the method according to any one of claims 41 to 50, or implement the method according to any one of claims 51 to 60.

67. A chip, characterized in that, The chip includes programmable logic circuits and / or program instructions, and when the chip runs, it is used to implement the method according to any one of claims 1 to 20, or implement the method according to any one of claims 21 to 40, or implement the method according to any one of claims 41 to 50, or implement the method according to any one of claims 51 to 60.

68. A computer program product, characterized in that, The computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium, and the processor reads and executes the computer instructions from the computer-readable storage medium to implement the method according to any one of claims 1 to 20, or implement the method according to any one of claims 21 to 40, or implement the method according to any one of claims 41 to 50, or implement the method according to any one of claims 51 to 60.

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