Communication methods and communication devices

Abstract

The present application relates to communication methods. A method comprises: a first communication device receives configuration information, the configuration information being used for determining a target frequency domain resource for the first communication device to monitor a paging message among a plurality of frequency domain resources comprised in a cell. In the embodiments of the present application, the target frequency domain resource for the first communication device to monitor the paging message is determined by means of the configuration information, such that the first communication device can successfully receive the paging message.

Description

Communication methods and communication equipment Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Technology

[0002] In 5th-Generation (5G) communications, each carrier is modeled as a cell or a carrier. All the functions contained in each cell or carrier can operate independently. In 5G, paging can encompass both the Tracking Area (TA) and the Radio Access Network-based Notification Area (RNA).

[0003] Summary of the Invention

[0004] This application provides a communication method, including:

[0005] The first communication device receives configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0006] This application provides a communication method, including:

[0007] The second communication device sends configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0008] This application provides a first communication device, including:

[0009] The transceiver unit is used to receive configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0010] This application provides a second communication device, including:

[0011] The transceiver unit is used to send configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0012] This application provides a communication device, including a transceiver, a processor, and a memory. The memory stores a computer program, the transceiver communicates with other devices, and the processor calls and runs the computer program stored in the memory to enable the communication device to perform the aforementioned communication method.

[0013] This application provides a chip for implementing the above-described communication method.

[0014] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the aforementioned communication method.

[0015] This application provides a computer-readable storage medium for storing a computer program, which, when run by a device, causes the device to perform the aforementioned communication method.

[0016] This application provides a computer program product, including computer program instructions that cause a computer to execute the above-described communication method.

[0017] This application provides a computer program that, when run on a computer, causes the computer to perform the aforementioned communication method.

[0018] In this embodiment of the application, by determining the target frequency domain resources for the first communication device to listen to paging messages through configuration information, the first communication device can successfully receive paging messages. Attached Figure Description

[0019] Figure 1 is a schematic diagram of an application scenario according to an embodiment of this application.

[0020] Figure 2 is a schematic diagram of the tracking area and the notification area.

[0021] Figure 3 is a schematic flowchart of a communication method according to an embodiment of this application.

[0022] Figure 4 is a schematic flowchart of a communication method according to another embodiment of this application.

[0023] Figure 5 is a schematic flowchart of a communication method according to another embodiment of this application.

[0024] Figure 6 is a schematic flowchart of a communication method according to an embodiment of this application.

[0025] Figure 7 is a schematic flowchart of a communication method according to another embodiment of this application.

[0026] Figure 8 is a schematic diagram of Embodiment 1.

[0027] Figure 9 is a schematic diagram of Example 2.

[0028] Figure 10 is a schematic diagram of Example 3.

[0029] Figure 11 is a schematic block diagram of a first communication device according to an embodiment of the present application.

[0030] Figure 12 is a schematic block diagram of a first communication device according to another embodiment of this application.

[0031] Figure 13 is a schematic block diagram of a second communication device according to an embodiment of the present application.

[0032] Figure 14 is a schematic block diagram of a communication device according to an embodiment of this application.

[0033] Figure 15 is a schematic block diagram of a chip according to an embodiment of this application.

[0034] Figure 16 is a schematic block diagram of a communication system according to an embodiment of this application. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0036] The technical solutions of this application embodiment can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, Advanced Long Term Evolution (LTE-A) systems, New Radio (NR) systems, evolution systems of NR systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, Non-Terrestrial Networks (NTN) systems, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5G systems, or other communication systems.

[0037] Traditional communication systems typically 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 communication but also, 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. The embodiments of this application can also be applied to these communication systems.

[0038] In one implementation, the communication system in this application embodiment can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

[0039] In one embodiment, the communication system in this application can be applied to unlicensed spectrum, wherein the unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application can also be applied to licensed spectrum, wherein the licensed spectrum can also be considered as non-shared spectrum.

[0040] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0041] Terminal devices can be stations (STAION, ST) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0042] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0043] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0044] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0045] In the embodiments of this application, the network device can be a device for communicating with mobile devices, such as an access point (AP) in a WLAN, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0046] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0047] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0048] Figure 1 illustrates an exemplary communication system 100. The communication system includes a network device 110 and two terminal devices 120. In one embodiment, the communication system 100 may include multiple network devices 110, and the coverage area of ​​each network device 110 may include other numbers of terminal devices 120; this embodiment does not limit the scope of the present application.

[0049] In one embodiment, the communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which are not limited in this application.

[0050] Network equipment can be further divided into access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks used to communicate with the access network equipment. Access network equipment can be evolved Node Bs (eNBs or e-NodeBs) in Long-Term Evolution (LTE), Next-Generation Radio (NR) (mobile communication system), or Authorized Auxiliary Access Long-Term Evolution (LAA-LTE) systems, such as macro base stations, micro base stations (also called "small base stations"), pico base stations, access points (APs), transmission points (TPs), or new generation Node Bs (gNodeBs).

[0051] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Taking the communication system shown in Figure 1 as an example, the communication device may include network devices and terminal devices with communication functions. The network devices and terminal devices can be specific devices in this application embodiment, which will not be described in detail here. The communication device may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities. This application embodiment does not limit this.

[0052] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0053] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0054] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0055] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0056] I. Paging Mechanism

[0057] The application scenarios for paging in the NR system include: paging initiated by the core network, paging initiated by the gNB, and notification of system message updates initiated by the gNB.

[0058] Paging initiated by the core network and mobility management at the Non-Access Stratum (NAS) layer in the Radio Resource Control (RRC)_IDLE state are complementary processes; the paging range is the tracking area (TA) currently registered by the UE. The defined tracking area represents a trade-off between paging load and location update frequency. This is because a larger tracking area results in fewer location updates, but a higher system paging load. Paging initiated by the core network is typically only for UEs in the RRC_IDLE state. UEs in the RRC_INACTIVE state will receive paging initiated by the gNB. This is because in the RRC_INACTIVE state, the NR introduces a concept similar to the tracking area, namely the notification area, such as the RAN Notification Area (RNA), as shown in Figure 2. UEs in the RRC_INACTIVE state only need to inform the network of new RNAs through the RNA Update process when moving across RNAs. When the network side has new downlink data or signaling (such as NAS signaling) that needs to be sent to the UE, a paging process is triggered by the gNB. This paging process is initiated by the anchor gNB of the UE in the RRC_INACTIVE state, i.e., by using an RRC release message to put the UE into the inactive (INACTIVE) state of the gNB. Since a single RNA may cover multiple gNBs, paging initiated by the gNB also needs to be forwarded through the Xn interface.

[0059] These two paging mechanisms are not entirely independent. The core network can provide auxiliary information to the gNB to determine the RNA size. Furthermore, paging initiated by the core network is a fallback scheme for paging initiated by the gNB. If the gNB does not receive a paging response from the UE after initiating a paging, it assumes that the UE and the network have lost synchronization at the RNA level, and therefore notifies the core network. The core network then triggers a paging process within the TA range. If the UE receives a paging message from the core network while in RRC_INACTIVE state, it will first enter RRC_IDLE state before responding to the paging message. Paging messages triggered by the core network and gNB can be distinguished by the UE identifier contained in the paging message. Paging messages containing the Inactive Radio Network Temporary Identity (I-RNTI) in an inactive state are gNB-triggered, while those containing the Next Generation (NG) 5G System Temporary Mobile Subscriber Identity (NG-5G-S-TMSI) are core network-triggered. Table 1 shows a comparison of the three paging messages.

[0060] Table 1 Comparison of three paging messages

[0061] System message updates are called Short Messages in the RRC protocol. These are RRC information contained in the Physical Downlink Control Channel (PDCCH) and can contain 2 bits. One bit indicates that the update is triggered for a system message other than ETWS / CMAS messages (SIB6, SIB7, SIB8), and the other bit indicates that the update is triggered for Emergency Telecommunications Warning System (ETWS) / Commercial Mobile Alert System (CMAS) messages (e.g., SIB6, SIB7, SIB8). A UE in any RRC state may receive this Short Message to update its system messages.

[0062] All three types of paging messages mentioned above have their PDCCH channels scrambled with a common paging identifier configured in the cell, such as the Paging Radio Network Temporary Identifier (P-RNTI). Paging messages initiated by the core network and gNB can contain multiple paging records. Each paging record contains a paging message for a specific UE.

[0063] The principle of paging message transmission is the same for paging initiated by the core network and paging initiated by the gNB. From the network's perspective, it is sent on every paging opportunity (PO) within the system message update cycle. Terminals in the RRC_IDLE and RRC_INACTIVE states only listen to POs associated with themselves. UEs in the RRC_CONNECTED state listen to POs that are not necessarily associated with their own identifier, thus minimizing conflicts with other dedicated downlink data.

[0064] The following sections describe the paging frame (PF) and paging opportunity (PO). In LTE systems, a PF is a radio frame containing a PO within a Discontinuous Reception (DRX) cycle, while a PO is a subframe within the PF where paging messages can be transmitted. In NR, if the PDCCH Monitoring occasion (PMO) is defined by the paging search space in SIB1, the definition of the PF can remain consistent with LTE, while the definition of the PO can be changed to include radio slots containing multiple PMOs. The number of PMOs is equal to the number of SSBs actually transmitted in the SSB burst set of this cell. When the PMO is defined by search space 0 in the Master Information Block (MIB), the definition of the PO can follow the new definition, but the PF points to the reference radio frame of the PO. This reference radio frame contains an SSB burst. The relationship between this reference radio frame and the radio frame (and its associated radio slot and OFDM symbol) containing the PO is fixed, so the UE can accurately locate the PO based on the reference radio frame.

[0065] An example of Formula 1 for determining PF is shown below, which applies to both of the above cases:

[0066] (SFN+PF_offset)mod T=(T div N)*(UE_ID mod N)

[0067] The parameters have the following meanings:

[0068] SFN: Represents the system frame number (SFN) of the radio frame in which the PF is located.

[0069] PF_offset: Represents the wireless frame offset.

[0070] T: Indicates the paging cycle.

[0071] N: Represents the number of PFs in the paging cycle.

[0072] UE_ID: Represents the UE identifier, equal to 5G-S-TMSI mod 1024, where mod is the modulo operation.

[0073] II. RAN-based Notification Area Update (RNA-Update, RNAU)

[0074] A UE in the RRC_INACTIVE state needs to initiate an RNA update process when it is removed from the configured RNA or periodically. When an RNA update request is received from the UE, the receiving gNB triggers the Xn Application Protocol (XnAP) to retrieve the UE context from the previous serving gNB. The receiving gNB may decide to send the UE back to the RRC_INACTIVE state, move the UE to the RRC_CONNECTED state, or send the UE into the RRC_IDLE state. In the case of periodic RNA updates, if the last serving gNB decides not to relocate the UE context, the UE context retrieval process fails, and the UE is sent back to the RRC_INACTIVE state or directly back to the RRC_IDLE state via an encapsulated RRCRelease message.

[0075] III. Notification Area (RNA) Based on RAN

[0076] A UE in the RRC_INACTIVE state can have an RNA configured by the previous serving NG-RAN node, where: the RNA can cover one or more cells and should be included within the Core Network (CN) registration area. Xn connectivity is available within the RNA; RAN-based notification area updates (RNAU) are sent periodically by the UE, and also when the UE's cell reselection process selects a cell that does not belong to the configured RNA.

[0077] There are several different options for configuring RNA, as shown in the following examples:

[0078] (1) Cell list: Provide the UE with an explicit list of cells (one or more) that constitute the RNA.

[0079] (2) RNA region list: Provide the UE with at least one RNA region ID, where the RNA region is a subset of or equal to the CN tracking region. A RAN region is specified by a RAN region ID, which consists of a TAC and an optional RAN region code;

[0080] (3) The cell broadcasts one or more RNA region IDs in the system information (in the case of network sharing with multiple cell ID broadcasts).

[0081] NG-RAN can provide different RNA definitions to different UEs, but different definitions cannot be mixed to the same UE at the same time. The UE should support all the RNA configuration options listed above.

[0082] IV. Tracking Area Update (TAU) or Registration Area Update

[0083] In 5G networks, Tracking Area Update (TAU) is a crucial mobility management process that allows mobile devices (UEs) to update their location information when the Tracking Area changes, enabling the network to locate the UE for packet delivery and other services. A Tracking Area is a logical group of cells, each with a unique Tracking Area Identity (TAI), including a Public Land Mobile Network Identity (PLMN-ID) and a Tracking Area Code (TAC). TAU is referred to as Registration Area Update in the NAS protocol.

[0084] The TAU process is triggered by the following events:

[0085] When the UE moves from one tracking area to another.

[0086] When the timer associated with TAU expires, TAU will be updated periodically.

[0087] The network may instruct the UE to perform TAU for optimization purposes or specific network conditions.

[0088] In 5G, each carrier can be modeled as a cell, and each cell / carrier contains all the functions and can operate independently. However, each carrier also needs to handle the transmission of System Information Block (SIB) messages, synchronization signals, and Physical Broadcast Channel (PBCH) blocks (SSBs). In 6G, multiple frequencies (or multiple carriers) can be modeled as a single cell. This way, common SIB messages and SSB signals can be transmitted through a single carrier, while other carriers can handle only load-related transmissions, such as paging or Random Access Channel (RACH) transmissions.

[0089] In 5G, paging is measured in TA (CN paging) or RNA (RAN paging). Each cell within the TA and / or RA range sends paging messages to UEs within that TA and / or RNA range. The network controls paging load by adjusting the size of the TA and RNA. This can lead to many unnecessary duplicate paging messages being sent, and this mechanism for controlling paging load is not flexible enough (because TA and RNA adjustments are related to network deployment).

[0090] Figure 3 is a schematic flowchart of a communication method 300 according to an embodiment of this application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes at least a portion of the following:

[0091] S310. The first communication device receives configuration information, which is used to determine the target frequency domain resources for the first communication device to listen to paging messages within the multiple frequency domain resources included in the cell.

[0092] In this embodiment, a frequency domain resource may include a component carrier (CC), which can also be referred to as a carrier. A frequency domain resource may also include a bandwith part (BWP). Multiple frequency domain resources can be used to model a cell. Thus, a cell containing multiple frequency domain resources allows for more flexible cell deployment and lower power consumption. Within the multiple frequency domain resources included in a cell, some resources can be used to transmit common SIB messages and / or SSB signals, while others can be used to handle load-related transmissions, such as paging message transmissions. The second communication device can flexibly allocate the paging load as needed across different frequency domain resources within the cell, such as different carriers. The first communication device, such as a terminal device, can receive configuration information sent by the second communication device, such as a network device. The target frequency domain resource for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell can be determined by the first communication device or determined by the second communication device and then communicated to the first communication device. For example, the configuration information may include the target frequency domain resource already determined by the second communication device. For example, the first communication device can directly determine the target frequency domain resource based on the configuration information. Alternatively, the first communication device can first determine information related to the target frequency domain resource based on the configuration information, such as the coverage of one or more frequency domain resources included in the cell, and then indirectly determine the target frequency domain resource based on that coverage information.

[0093] In one implementation, the multiple frequency domain resources included in the cell include one or more of the following: multiple carrier elements (CCs) included in the cell, multiple bandwidth portions (BWPs) included in the cell, multiple frequency bands included in the cell, and combinations of multiple frequency bands included in the cell. For example, configuration information is used to determine the target CC for a first communication device to listen for paging messages within the multiple CCs included in the cell. As another example, configuration information is used to determine the target BWP for a first communication device to listen for paging messages within the multiple BWPs included in the cell. As another example, configuration information is used to determine the target frequency band for a first communication device to listen for paging messages within the multiple frequency bands included in the cell. As yet another example, configuration information is used to determine the target frequency band combination for a first communication device to listen for paging messages within the multiple combinations of frequency bands included in the cell.

[0094] Figure 4 is a schematic flowchart of a communication method 400 according to another embodiment of this application. This method may include step S410, which can be found in the description of step S310 of the communication method described above.

[0095] In one implementation, the configuration information includes one or more of the following:

[0096] Information on multiple frequency domain resources included in this cell;

[0097] The reference signal configuration associated with these multiple frequency domain resources;

[0098] Configuration of comparison conditions used to determine whether the first communication device is within the coverage area of ​​one or more frequency domain resources.

[0099] For example, configuration information may include information about all frequency domain resources included in the cell. Specifically, configuration information may include the numbers CC1, CC2, and CC3 for multiple carrier elements.

[0100] For example, the configuration information may include the configuration of the reference signal RS1 associated with CC1, the configuration of the reference signal RS2 associated with CC2, and the configuration of the reference signal that CC3 is not associated with.

[0101] For example, configuration information may include comparison conditions such as threshold parameters for determining whether the UE is within the coverage area of ​​CC1.

[0102] In this application embodiment, one or more of the configuration information can be carried by the same message or by different messages.

[0103] In one implementation, the method further includes:

[0104] S420. The first communication device determines the coverage of the frequency domain resources included in the cell based on the configuration information. In this embodiment, coverage can also be referred to as coverage status. For example, if the configuration information includes the numbers CC1, CC2, and CC3 of multiple carrier elements, the coverage status of the UE in CC1, CC2, and CC3 can be determined.

[0105] In one implementation, the coverage status of a frequency domain resource indicates whether the first communication device is within the coverage area of ​​that frequency domain resource. For example, it can be determined that the UE is within the coverage area of ​​CC1 and CC2. As another example, it can be determined that the UE is not within the coverage area of ​​CC3.

[0106] In one implementation, if the measurement result of a reference signal associated with a frequency domain resource satisfies the comparison condition corresponding to that frequency domain resource, it indicates that the first communication device is within the coverage area of ​​that frequency domain resource.

[0107] In one implementation, the first communication device being within the coverage area of ​​the frequency domain resource indicates that the first communication device is capable of receiving paging messages sent on the frequency domain resource.

[0108] In this embodiment, if the configuration information received by the first communication device includes a reference signal configuration associated with a frequency domain resource, the first communication device can measure the reference signal associated with the frequency domain resource according to the reference signal configuration to obtain the measurement result of the reference signal. If the configuration information received by the first communication device also includes a comparison condition (i.e., the comparison condition corresponding to the frequency domain resource) configuration for determining whether the first communication device is within the coverage area of ​​the frequency domain resource, it can be determined whether the measurement result of the reference signal satisfies the comparison condition. If it does, it can be determined that the first communication device is within the coverage area of ​​the frequency domain resource. If it does not, it can be determined that the first communication device is not within the coverage area of ​​the frequency domain resource.

[0109] In one implementation, when a reference signal is configured on a frequency domain resource, the coverage is determined based on measurements of the reference signal.

[0110] For example, the configuration information includes the carrier unit number CC1 and the configuration of the reference signal RS1 associated with CC1 (i.e., RS1 is configured on CC1). The comparison condition corresponding to CC1 is the threshold Tr1. The UE can measure the reference signal RS1 associated with CC1, obtain the measurement result of RS1, and compare the measurement result of RS1 with Tr1. If the measurement result of RS1 is greater than Tr1, the comparison condition is met, and it can be determined that the UE is within the coverage area of ​​CC1. If the measurement result of RS1 is less than or equal to Tr1, the comparison condition is not met, and it can be determined that the UE is not within the coverage area of ​​CC1.

[0111] For example, the configuration information includes the carrier unit number CC2 and the configuration of the reference signal RS2 associated with CC2 (i.e., RS2 is configured on CC2). The comparison condition corresponding to CC2 is the threshold Tr2. The UE can measure the reference signal RS2 associated with CC2, obtain the measurement result of RS2, and compare the measurement result of RS2 with Tr2. If the measurement result of RS2 is less than Tr2, the comparison condition is met, and it can be determined that the UE is within the coverage area of ​​CC2. If the measurement result of RS2 is greater than or equal to Tr2, the comparison condition is not met, and it can be determined that the UE is not within the coverage area of ​​CC2.

[0112] In one implementation, when no reference signal is configured on a frequency domain resource, the coverage is determined based on the measurement results of the reference signal of the frequency domain resource associated with that frequency domain resource.

[0113] In this embodiment, if the coverage areas of one frequency domain resource and another frequency domain resource are close or partially overlap, these two frequency domain resources can be related frequency domain resources. For example, the configuration information includes carrier unit numbers CC2 and CC3, and the comparison condition corresponding to CC3 is threshold Tr3. Since CC3 does not have a configured reference signal, the UE can measure the reference signal RS1 of a frequency domain resource related to CC3, such as CC1, obtain the measurement result of RS1, and compare the measurement result of RS1 with Tr3. If the measurement result of RS1 is greater than Tr3, the comparison condition is met, and it can be determined that the UE is within the coverage area of ​​CC1. If the measurement result of RS1 is less than or equal to Tr3, the comparison condition is not met, and it can be determined that the UE is not within the coverage area of ​​CC1.

[0114] In one implementation, the configuration of comparison conditions for determining whether the first communication device is within the coverage area of ​​one or more frequency domain resources includes one or more of the following: threshold parameters, power control parameters, and uplink correlation parameters.

[0115] For example, if the measurement result of a reference signal associated with a frequency domain resource is greater than or equal to a first threshold parameter, it can be determined that the comparison condition corresponding to that frequency domain resource is met. Similarly, if the measurement result of a reference signal associated with a frequency domain resource is less than or equal to a second threshold parameter, it can be determined that the comparison condition corresponding to that frequency domain resource is met.

[0116] In this embodiment, power control parameters, uplink-related parameters, etc., can be used, with reference to the S criterion, to determine whether the first communication device is within the coverage area of ​​a certain frequency domain resource. For example, power control parameters may include parameters related to downlink signal transmission power, such as the ratio of downlink signal transmission power between base stations CC3 and CC1. Uplink-related parameters may represent the portion of the UE's uplink coverage that needs to be reduced.

[0117] An example of determining whether a first communication device is within the coverage area of ​​a certain frequency domain resource is as follows:

[0118] If RS1*power control related parameters - uplink related parameters > Tr3, then it is considered to be within the coverage area.

[0119] In one implementation, the configuration information further includes: information on the frequency domain resources used for paging in the cell; and paging-related configurations. In this embodiment, the information on the frequency domain resources used for paging in the cell may include: the number and quantity of frequency domain resources used by the second communication device in the cell to send paging messages. For example, the frequency domain resources are numbered CC1, CC2, and CC3, and the number of frequency domain resources is three. The information on the frequency domain resources used for paging in the cell may include information on frequency domain resources specifically used for paging in the cell.

[0120] In one implementation, the paging-related configuration includes: a paging-related configuration for the frequency domain resources used by the cell to transmit paging messages. In this embodiment, the paging-related configuration may or may not be associated with the frequency domain resources. For example, the paging-related configuration for frequency domain resource CC1 used by the cell to transmit paging messages is P1, and the paging-related configuration for CC2 is P2.

[0121] In one implementation, the paging-related configuration includes one or more of the following:

[0122] Search space configuration;

[0123] Calculate relevant parameters for paging opportunity (PO);

[0124] The paging frame (PF) calculates relevant parameters;

[0125] The packet configuration of the first communication device;

[0126] The relevant configuration for the first instruction information.

[0127] For example, the search space configuration for paging-related configurations can be the configuration of a control resource set (CORESET) on each carrier. Furthermore, paging-related configurations include parameters for calculating time-domain resources PO and / or PF. For instance, one or more parameters such as SFN, PF_offset, T, N, and UE_ID in Formula 1 for calculating PF.

[0128] For example, the group configuration of the first communication device may include device information in the first communication device group. Specifically, for example, the first communication device group G1 includes UE1 and UE2, and G2 includes UE3 and UE4.

[0129] For example, the first indication information may be information sent by the first communication device to the second communication device. The relevant configuration of the first indication information may include the resource location and power control parameters of one or more associated first indication information for each first communication device, each group of first communication devices, each frequency domain resource, or each reference signal.

[0130] In one implementation, the method for determining the first group of communication devices includes one or more of the following:

[0131] Based on the identification of the first communication device;

[0132] CN configuration;

[0133] RAN configuration.

[0134] For example, a UE can be divided into two groups based on the IDs of UE1, UE2, UE3, and UE4. One group includes the IDs of UE1 and UE2, and the other group includes the IDs of UE3 and UE4.

[0135] For example, you can configure the UE's packets in the RAN and then send the packet configuration to the UE.

[0136] For example, you can configure the UE's packets in the CN and then send the packet configuration to the UE.

[0137] In one embodiment, the method further includes:

[0138] S430. The first communication device determines the associated frequency domain resources for listening to the paging message in the cell based on the configuration information.

[0139] In one implementation, the configuration information includes associated frequency domain resources for listening to the paging message within the cell.

[0140] In this embodiment, the associated frequency domain resource determined by the first communication device based on the configuration information may or may not be a target frequency domain resource. For example, the associated frequency domain resources determined by the UE based on the configuration information are numbered CC1 and CC2. Among them, CC1 is a target frequency domain resource, and CC2 is not a target frequency domain resource.

[0141] In one implementation, the method for determining the associated frequency domain resource includes one or more of the following:

[0142] The calculation is based on the identifier of the first communication device and the number of frequency domain resources used to send the paging message;

[0143] The second communication device instructs the first communication device to listen to the frequency domain resources of the paging message;

[0144] Select one or more frequency domain resources from all frequency domain resources in the cell that can cover the first communication device.

[0145] In one implementation, the formula for calculating the associated frequency domain resources includes: C = (UE_ID) mod M, where M represents the number of frequency domain resources that send the paging message; C represents the number of the frequency domain resources that the first communication device receives the paging message; and UE_ID represents the identifier of the first communication device.

[0146] In one embodiment, the identifier of the first communication device includes one or more of the following: an identifier that uniquely identifies the first communication device in the access network RAN; an identifier that uniquely identifies the first communication device in the core network CN; an identifier that uniquely identifies the first communication device in the cell; and an identifier that uniquely identifies the first communication device in the registration area.

[0147] For example, the associated frequency domain resources are calculated using the formula C = (UE_ID) mod M. Here, M is the number of CCs (CCs) used to send paging messages (e.g., in the configuration information sent by the network); C is the CC number (e.g., CC1) received by the UE from the paging message; and UE_ID is the identifier of the first communication device. UE_ID includes one or more of the following: an ID that uniquely identifies the UE in the RAN, an ID that uniquely identifies the UE in the CN, an ID that uniquely identifies the UE in the cell, and an ID that uniquely identifies the UE in the registered area. For example, UE_ID includes the Radio Network Temporary Identity (I-RNTI) used for paging in the RAN. Another example is the Temporary Mobile Subscriber Identity (TMSI) used for paging in the CN.

[0148] In one implementation, the second communication device instructing the first communication device to use frequency domain resources specifically for listening to the paging message includes: the second communication device instructing the first communication device to use frequency domain resources specifically for listening to the paging message. For example, the second communication device instructs the first communication device, through configuration information, that the associated frequency domain resources are CC1 and CC2.

[0149] In this embodiment, after S420, the first communication device selects one or more frequency domain resources from all frequency domain resources in the cell that can cover it, based on signal quality and / or the implementation of the first communication device. For example, the first communication device determines that all frequency domain resources in the cell that can cover it are CC1 and CC2. Based on the measurement results of reference signals on CC1 and CC2, the frequency domain resource with the best signal quality, such as CC1, is selected as the associated frequency domain resource. Alternatively, the implementation of the first communication device may not specify how the first communication device, such as a UE, determines the associated frequency domain resource.

[0150] In one implementation, the time-domain resources of the paging message are determined based on the paging-related configuration of the associated frequency-domain resources of the paging message.

[0151] In one implementation, the paging-related configurations of the multiple frequency domain resources included in the cell are different.

[0152] For example, if the paging related configuration of CC1 in a cell is different from that of CC2, the associated frequency domain resource for listening to paging messages can be determined to be CC1 first; then, the relevant parameters can be calculated based on the PO in the paging related configuration of CC1, and the relevant parameters can be calculated based on the PF in the paging related configuration of CC1.

[0153] In one implementation, the associated frequency domain resources and the time domain resources of the paging message are determined separately.

[0154] In one implementation, the paging-related configurations of each frequency domain resource included in the cell are the same and / or the positions of the time domain resources corresponding to each frequency domain resource are aligned.

[0155] For example, if the paging-related configurations of CC1 and CC2 in a cell are the same, the order in which frequency domain resources and time domain resources are determined is not limited. The associated frequency domain resource for listening to paging messages can be determined as CC1, and the relevant parameters can be calculated based on PO. As another example, if a cell includes multiple frequency domain resources, each with a corresponding time domain resource, and the positions of the time domain resources corresponding to each frequency domain resource are aligned as follows: the cell includes frequency domain resources CC1, CC2, and CC3, and the positions of the time domain resources PF1 corresponding to CC1, PF2 corresponding to CC2, and PF3 corresponding to CC3 are aligned. In this case, the order in which frequency domain resources and time domain resources are determined is not limited. For example, PF can be calculated based on relevant parameters, and the associated frequency domain resource for listening to paging messages can be determined as CC1.

[0156] In one implementation, the method further includes:

[0157] S440. The first communication device sends first indication information according to the configuration information. For example, the uplink signal-related configuration in the configuration information received by the first communication device is the related configuration of the first indication information. Based on the resource location, power control parameters, and other related configurations of the first indication information, the first communication device sends the first indication information at the resource location of the first indication information, according to the power corresponding to the power control parameters. Step S440 can be executed after S410, after S420, or after S430.

[0158] In one implementation, the first indication information indicates the coverage of frequency domain resources included in the cell. Specifically, the first indication information may indicate the coverage of frequency domain resources included in the cell for the first communication device. For example, after S420, the first communication device may execute S440 based on the frequency domain resource coverage it has determined, and the first communication device may send the coverage of frequency domain resources included in the cell for the first communication device to the second communication device through the first indication information.

[0159] In one embodiment, the coverage of the frequency domain resources included in the cell includes: indication information of frequency domain resources in the cell that can cover and / or cannot cover the first communication device, and / or indication information of frequency domain resources in the second communication device used to send the paging message that can cover and / or cannot cover the first communication device.

[0160] For example, in S410, the configuration information includes the frequency domain resource numbers CC1 to CC8 of a cell. In S420, the first communication device determines the frequency domain resources numbered CC1, CC2, and CC3 that can cover the first communication device. In S440, the first communication device sends a first indication message to the second communication device, which may indicate that one or more of CC1, CC2, and CC3 can cover the first communication device. The first communication device may also send a first indication message to the second communication device, which may indicate that one or more of CC4, CC5, CC6, CC7, and CC8 cannot cover the first communication device. The second communication device may send a paging message on one or more of the frequency domain resources CC1, CC2, and CC3. The first communication device may listen for and receive the paging message on one or more of the frequency domain resources CC1, CC2, and CC3.

[0161] For example, in S410, the configuration information includes the frequency domain resource numbers CC1, CC4, and CC8 used by the second communication device to send paging messages. In S420, the first communication device determines the frequency domain resource numbers CC1, CC2, and CC3 that can cover the first communication device. In S440, the first communication device sends a first indication message to the second communication device, which can indicate that CC1 can cover the first communication device. The first indication message sent by the first communication device to the second communication device can indicate that CC4 and / or CC8 cannot cover the first communication device. The second communication device can send a paging message on CC1. The first communication device can listen for and receive the paging message on CC1.

[0162] In one implementation, the first indication information indicates that the first communication device is listening to information about the associated frequency domain resources of the paging message. For example, after S430, S440 can be executed, whereby the first communication device, through the first indication information, can send information about the associated frequency domain resources of the paging message being listened to by the first communication device to the second communication device. The second communication device can use the received associated frequency domain resources as the target frequency domain resources, or it can select a target frequency domain resource from the received associated frequency domain resources.

[0163] In one implementation, the information of the associated frequency domain resources for which the first communication device listens to the paging message includes: a coverage indication of the associated frequency domain resources; and the number of a frequency domain resource that can cover the first communication device and is capable of receiving the paging message. The coverage indication of the associated frequency domain resources can indicate whether the paging message can be received on a frequency domain resource that can cover the first communication device.

[0164] In this embodiment, after S420, the first communication device can determine one or more frequency domain resources that can cover the first communication device, such as CC1, CC2, and CC3. It is not necessarily possible to receive paging messages on all frequency domain resources that can cover the first communication device. If paging messages can be received on CC1, but not on CC2 and CC3, the first indication information can indicate that CC1 corresponds to a positive indication, and CC2 and CC3 correspond to negative indications; the first indication information can also indicate the number CC1 of the frequency domain resource that can receive paging messages.

[0165] In one implementation, the coverage indication of the associated frequency domain resource includes one or more of the following:

[0166] A positive indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is within the coverage area of ​​the associated frequency domain resource;

[0167] A negative indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is not within the coverage area of ​​the associated frequency domain resource.

[0168] In this embodiment, the coverage indication of associated frequency domain resources is used to indicate whether the associated frequency domain resources can cover the first communication device and / or cannot cover the first communication device. The coverage indication of associated frequency domain resources can be implicitly or explicitly indicated by the reported CC numbers. For example, the numbers reported in the coverage indication of associated frequency domain resources default to those that can cover the first communication device, while those not reported indicate those that cannot cover the first communication device. The coverage indication of associated frequency domain resources can also report all CC numbers, distinguishing which can cover the first communication device and which cannot.

[0169] In this application embodiment, there are multiple methods for determining associated frequency domain resources. For example, six associated frequency domain resources are calculated according to the formula C = (UE_ID) mod M, namely CC1 to CC6. Among them, CC1, CC2, and CC3 can cover the first communication device, while CC4, CC5, and CC6 cannot cover the first communication device. In the first indication information, CC1, CC2, and CC3 can correspond to positive indications, while CC4, CC5, and CC6 can correspond to negative indications. As another example, when the first communication device receives an indication from the second communication device (see the second indication information below) to listen to a paging message, the frequency domain resources of the first communication device are all associated frequency domain resources such as CC1 and CC4. Among them, CC1 can cover the first communication device, while CC4 cannot cover the first communication device. In the first indication information, CC1 can correspond to a positive indication, and CC4 can correspond to a negative indication.

[0170] In one implementation, the first indication information indicates the measurement result of the reference signal of the frequency domain resources included in the cell. In this embodiment, in S410, the configuration information may include the configuration of the reference signal on a certain frequency domain resource. The first communication device can measure the reference signal on the frequency domain resource to obtain the measurement result of the reference signal. Then, S440 is executed to send the measurement result of the reference signal to the second communication device. The second communication device can determine the target frequency domain resource that the first communication device can listen to paging messages based on the measurement result of the reference signal.

[0171] In one implementation, the triggering conditions for the first indication information include one or more of the following:

[0172] The first communication device was moved to the new cell.

[0173] Tracking Area Identity (TAI) Triggered;

[0174] Triggered based on the notification area identity (RNA Identity, RNAI) of the access network RAN;

[0175] The coverage of frequency domain resources included in this cell has changed;

[0176] The measurement results of the reference signal meet the comparison conditions;

[0177] Receive frequency domain resource configuration and / or indication from the second communication device that sent the paging message;

[0178] The associated frequency domain resources are not frequency domain resources that can cover the first communication device.

[0179] For example, if the first communication device moves to a new cell, it can measure a reference signal on a certain frequency domain resource of the new cell based on configuration information, and then send a first indication message to the second communication device to indicate the measurement result of the reference signal. As another example, if the first communication device moves to a new cell, it can determine the coverage of the frequency domain resources of the new cell, and then send a first indication message to the second communication device. This first indication message may include information such as the coverage of the frequency domain resources of the new cell.

[0180] For example, if the first communication device receives a TAI or RNAI, it can trigger the first communication device to send a first instruction message to the second communication device.

[0181] For example, if the frequency domain resources that can cover the first communication device were originally CC1, CC2 and CC3, and then changed to CC1, the first communication device can be triggered to send a first indication message to the second communication device to inform the second communication device of the latest coverage status of the frequency domain resources.

[0182] For example, if the measurement result of the reference signal RS1 of frequency domain resource CC1 meets the comparison condition, the first communication device can report CC1 to the second communication device through the first indication information.

[0183] For example, the frequency domain resource configuration and / or indication received by the first communication device from the paging message sent by the second communication device includes: the requirement for the first communication device to report certain first indication information, such as the coverage status of all frequency domain resources included in the cell. After determining the coverage status of all frequency domain resources included in the cell, the first communication device can report this first indication information to the second communication device.

[0184] For example, if the associated frequency domain resource CC1 calculated by the first communication device is not a frequency domain resource that can cover the first communication device, the first communication device can report a negative indication corresponding to CC1 to the second communication device through the first indication information. Similarly, if the associated frequency domain resource CC2 indicated by the second communication device received by the first communication device is not a frequency domain resource that can cover the first communication device, the first communication device can report a negative indication corresponding to CC2 to the second communication device through the first indication information.

[0185] In the embodiments of this application, the first indication information may be a physical layer signal or sequence, or a Media Access Control (MAC) control element (CE) or RRC signaling.

[0186] In one implementation, the first indication information explicitly or implicitly indicates one or more of the following:

[0187] The identifier of the first communication device, such as the UE ID;

[0188] Radio Network Temporary Identity (RNTI);

[0189] The group identifier of the first communication device, such as the UE group ID.

[0190] In this embodiment, the temporary wireless network identifier can be an X-RNTI, which can include various types, where X represents a specific function. Examples include Cell-RNTI (C-RNTI), P-RNTI, and System Information-RNTI (SI-RNTI).

[0191] In one implementation, the first indication information is indication information during a Tracking Area Update (TAU) and / or a Notification Area Update (RNAU) based on the RAN. In this embodiment, during S440, when the first communication device performs a TAU or RNAU based on configuration information and coverage conditions, it may send the first indication information, including the UE ID, UE group ID, or X-RNTI, to the second communication device.

[0192] In one implementation, the configuration information is also used to indicate one or more of the following:

[0193] TA related information;

[0194] RNA-related information.

[0195] In one implementation, the triggering condition for the first indication information further includes one or more of the following:

[0196] The first communication device detected a change in the current TAI and / or RNAU-ID compared to the TAI and / or RNAU-ID of the previously resided cell;

[0197] Periodic triggering.

[0198] For example, in S410, the configuration information also includes the TAI and / or other information related to the TAI (which can be referred to as TAI information). In S440, the first communication device detects that the current TAI has changed compared to the TAI of the previously camped cell and can execute the TAU procedure to send first indication information to the second communication device. Examples of other information related to the TAI may include: tracking area code, tracking area list, etc.

[0199] For example, in S410, the configuration information also includes RNAI and / or other information related to RNAI (which can be simply referred to as RNAI). In S440, the RNAI process can be periodically triggered to send first indication information to the second communication device. Examples of other information related to RNAI may include RNA region codes.

[0200] In one implementation, the method further includes:

[0201] S450, The first communication device receives the paging message on the target frequency domain resource.

[0202] In one implementation, the target frequency domain resource includes one or more of the following:

[0203] The frequency domain resources configured in the second communication device for sending the paging message can cover the frequency domain resources of the first communication device;

[0204] Default frequency domain resources;

[0205] The first communication device determines the associated frequency domain resources for listening to the paging message.

[0206] In one implementation, the default frequency domain resource is the overlay frequency domain resource.

[0207] For example, the second indication information of the second communication device includes frequency domain resources CC1 and CC3 for sending paging messages. If the first communication device determines that CC1 can cover the first communication device, then CC1 is the target frequency domain resource. The second communication device sends a paging message to the first communication device through CC1, and the second communication device listens for and receives the paging message on CC1.

[0208] For example, the second communication device sends paging messages through the overlay layer frequency domain resources. The second communication device listens for and receives paging messages on the overlay layer frequency domain resources.

[0209] For example, the associated frequency domain resources for listening to paging messages determined by the first communication device are CC1, CC2, and CC3. CC1, CC2, and CC3 are all target frequency domain resources.

[0210] Figure 5 is a schematic flowchart of a communication method 500 according to another embodiment of this application. The method may include S510, as described in the relevant description of S310 of the communication method described above. The method may also include S520, as described in the relevant description of S420 of the communication method described above. One or more features of the above communication method are also described. In one embodiment, the method further includes:

[0211] S530, the first communication device receives second indication information, which is used to indicate the associated frequency domain resources of one or more paging messages.

[0212] In one implementation, the second indication information is indicated via Downlink Control Information (DCI), System Information Block (SIB) messages, or sequence indication.

[0213] In one implementation, the second indication information is used to indicate the frequency domain resources where the paging message of the first communication device and / or the group of first communication devices is located.

[0214] In one implementation, the second indication information is sent before each PF and / or each PO for a first time period. Sending the second indication information a certain time before the paging message's time-domain resources allows the first communication device time to perform one or more operations, such as measuring reference information, determining coverage, determining associated frequency-domain resources, and sending the first indication information to the network. This facilitates the first communication device's successful reception of the paging message sent by the second communication device after it has been allocated on demand.

[0215] In one implementation, the method for determining the associated frequency domain resources of the paging messages of the first communication device and / or the group of first communication devices includes one or more of the following:

[0216] The capabilities of the first communication device;

[0217] Priority of paging messages;

[0218] Paging load status of the second communication device;

[0219] The implementation of this second communication device.

[0220] In this embodiment, on the second communication device, the associated frequency domain resources of the paging messages of the first communication device and / or the first communication device group can be determined. Then, the associated frequency domain resources can be sent to the first communication device through the second indication information. After S530, S540 can be executed (see the relevant description of S430 for a detailed explanation), and the first communication device can determine the associated frequency domain resources in the second indication information as the associated frequency domain resources for listening to paging messages within the cell.

[0221] In this embodiment, if the first communication device supports paging distribution, the second communication device may send second indication information including associated frequency domain resources. Otherwise, the second communication device does not send the second indication information including associated frequency domain resources.

[0222] In this embodiment of the application, the second communication device can send high-priority paging messages on the overlay frequency domain resources first. In this case, the overlay frequency domain resources are both associated frequency domain resources and target frequency domain resources.

[0223] In this embodiment of the application, the second communication device can allocate the paging load to different frequency domain resources in the cell as needed based on the paging load status of the second communication device. That is, the frequency domain resources used to send paging messages can be determined as associated frequency domain resources.

[0224] In one embodiment, the method further includes S550, which can be found in the relevant description of S450 of the above communication method.

[0225] Figure 6 is a schematic flowchart of a communication method 600 according to an embodiment of this application. This method can optionally be applied to the system shown in Figure 1, but is not limited thereto. The method includes at least a portion of the following:

[0226] S610, the second communication device sends configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0227] In one implementation, the multiple frequency domain resources included in the cell include multiple CCs included in the cell, multiple BWPs included in the cell, multiple frequency bands included in the cell, and combinations of multiple frequency bands included in the cell.

[0228] In one implementation, the configuration information includes one or more of the following:

[0229] Information on multiple frequency domain resources included in this cell;

[0230] The reference signal configuration associated with these multiple frequency domain resources;

[0231] Configuration of comparison conditions used to determine whether the first communication device is within the coverage area of ​​one or more frequency domain resources.

[0232] In one implementation, the configuration information is used to determine the coverage of frequency domain resources included in the cell by the first communication device.

[0233] In one implementation, the coverage of a frequency domain resource indicates whether the first communication device is within the coverage area of ​​that frequency domain resource.

[0234] In one implementation, if the measurement result of a reference signal associated with a frequency domain resource satisfies the comparison condition corresponding to that frequency domain resource, it indicates that the first communication device is within the coverage area of ​​that frequency domain resource.

[0235] In one implementation, the first communication device indicates that it is capable of receiving paging messages sent on the frequency domain resource within the coverage area of ​​the frequency domain resource.

[0236] In one implementation, when a reference signal is configured on a frequency domain resource, the coverage is determined based on measurements of the reference signal.

[0237] In one implementation, when no reference signal is configured on a frequency domain resource, the coverage is determined based on the measurement results of the reference signal of the frequency domain resource associated with that frequency domain resource.

[0238] In one implementation, the configuration of comparison conditions for determining whether the first communication device is within the coverage area of ​​one or more frequency domain resources includes one or more of the following: threshold parameters, power control parameters, and uplink correlation parameters.

[0239] In one implementation, the configuration information further includes: information on the frequency domain resources of the cell used for paging; and paging-related configurations.

[0240] In one implementation, the information on the frequency domain resources used for paging in the cell includes information on the frequency domain resources specifically used for paging in the cell.

[0241] In one implementation, the paging-related configuration includes: paging-related configuration of the frequency domain resources of the cell used to send paging messages.

[0242] In one implementation, the paging-related configuration includes one or more of the following:

[0243] Search space configuration;

[0244] PO calculation related parameters;

[0245] PF calculation related parameters;

[0246] The packet configuration of the first communication device;

[0247] The relevant configuration for the first instruction information.

[0248] In one implementation, the configuration information is used to determine the associated frequency domain resources for listening to the paging message within the cell.

[0249] In one implementation, the configuration information includes associated frequency domain resources for listening to the paging message within the cell.

[0250] In one implementation, the method for determining the associated frequency domain resource includes one or more of the following:

[0251] The calculation is based on the identifier of the first communication device and the number of frequency domain resources used to send the paging message;

[0252] The second communication device instructs the first communication device to listen to the frequency domain resources of the paging message;

[0253] Select one or more frequency domain resources from all the frequency domain resources covering the first communication device included in the cell.

[0254] In one implementation, the formula for calculating the associated frequency domain resources includes: C = (UE_ID) mod M, where M represents the number of frequency domain resources that send the paging message; C represents the number of the frequency domain resources that the first communication device receives the paging message; and UE_ID represents the identifier of the first communication device.

[0255] In one embodiment, the identifier of the first communication device includes one or more of the following: an identifier that uniquely identifies the first communication device in the access network RAN; an identifier that uniquely identifies the first communication device in the core network CN; an identifier that uniquely identifies the first communication device in the cell; and an identifier that uniquely identifies the first communication device in the registration area.

[0256] In one implementation, the second communication device instructing the first communication device to listen to the paging message in the frequency domain resources includes: the second communication device instructing the first communication device to use frequency domain resources specifically for listening to the paging message.

[0257] In one implementation, the time-domain resources of the paging message are determined based on the paging-related configuration of the associated frequency-domain resources of the paging message.

[0258] In one implementation, the paging-related configurations of the multiple frequency domain resources included in the cell are different.

[0259] In one implementation, the associated frequency domain resources and the time domain resources of the paging message are determined separately.

[0260] In one implementation, the paging-related configurations of each frequency domain resource included in the cell are the same and / or the positions of the time domain resources corresponding to each frequency domain resource are aligned.

[0261] Figure 7 is a schematic flowchart of a communication method 700 according to another embodiment of this application. The method may include S710, as described in the relevant description of S610 of the communication method above. In one embodiment, the method further includes:

[0262] S720, The second communication device receives the first instruction information.

[0263] In one implementation, the first indication information indicates the coverage of frequency domain resources included in the cell for the first communication device.

[0264] In one embodiment, the coverage of the frequency domain resources included in the cell includes: indication information of frequency domain resources in the cell that can cover and / or cannot cover the first communication device, and / or indication information of frequency domain resources in the second communication device used to send the paging message that can cover and / or cannot cover the first communication device.

[0265] In one implementation, the first indication information indicates that the first communication device is listening to information about the associated frequency domain resources of the paging message.

[0266] In one embodiment, the information of the associated frequency domain resources for which the first communication device listens to the paging message includes: a coverage indication of the associated frequency domain resources; and the number of the frequency domain resources that can receive the paging message and cover the first communication device.

[0267] In one implementation, the coverage indication of the associated frequency domain resource includes one or more of the following:

[0268] A positive indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is within the coverage area of ​​the associated frequency domain resource;

[0269] A negative indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is not within the coverage area of ​​the associated frequency domain resource.

[0270] In one implementation, the first indication information indicates the measurement results of reference signals for the frequency domain resources included in the cell.

[0271] In one implementation, the triggering conditions for the first indication information include one or more of the following:

[0272] The first communication device was moved to the new cell.

[0273] TAI trigger;

[0274] RNAI triggering;

[0275] The coverage of frequency domain resources included in this cell has changed;

[0276] The measurement results of the reference signal meet the comparison conditions;

[0277] Receive frequency domain resource configuration and / or indication from the second communication device that sent the paging message;

[0278] The associated frequency domain resources are not frequency domain resources that can cover the first communication device.

[0279] In one implementation, the first indication information also explicitly or implicitly indicates one or more of the following:

[0280] The identifier of the first communication device;

[0281] Temporary wireless network identifiers, such as X-RNTI;

[0282] The group identifier of the first communication device.

[0283] In one implementation, the first indication information is indication information during the TAU and / or RNAU process.

[0284] In one implementation, the configuration information is also used to indicate one or more of the following:

[0285] TA related information;

[0286] RNA-related information.

[0287] In one implementation, the triggering condition for the first indication information further includes one or more of the following:

[0288] The first communication device detected a change in the current TAI and / or RNAU-ID compared to the TAI and / or RNAU-ID of the previously resided cell;

[0289] Periodic triggering.

[0290] In one implementation, the method further includes:

[0291] S730: The second communication device sends second indication information, which is used to indicate the associated frequency domain resources of one or more paging messages. In this embodiment, the communication method may include S710, S720, and S730; it may also include S710 and S720 but not S730; or it may include S710 and S730 but not S720. Furthermore, the execution timing of S720 and S730 may be changed. For example, the first indication information received by the second communication device may include the coverage of frequency domain resources, and then the first indication information sent by the second communication device may include associated frequency domain resources. As another example, the first indication information sent by the second communication device may include associated frequency domain resources, and then the first indication information received by the second communication device may include a negative indication or a positive indication.

[0292] In one implementation, the second indication information is indicated via DCI, SIB messages, or sequence indication.

[0293] In one implementation, the second indication information is used to indicate the frequency domain resources where the paging message of the first communication device and / or the group of first communication devices is located.

[0294] In one implementation, the second indication information is sent before each PF and / or each PO for a first time length.

[0295] In one implementation, the method for determining the associated frequency domain resources of the paging messages of the first communication device and / or the group of first communication devices includes one or more of the following:

[0296] The capabilities of the first communication device;

[0297] Priority of paging messages;

[0298] Paging load status of the second communication device;

[0299] The implementation of this second communication device.

[0300] In one implementation, the method for determining the first group of communication devices includes one or more of the following:

[0301] Based on the identification of the first communication device;

[0302] CN configuration;

[0303] RAN configuration.

[0304] In one implementation, the method further includes:

[0305] S740, The second communication device sends the paging message on the target frequency domain resource.

[0306] In one implementation, the target frequency domain resource includes one or more of the following:

[0307] The frequency domain resources configured in the second communication device for sending the paging message can cover the frequency domain resources of the first communication device;

[0308] Default frequency domain resources;

[0309] The first communication device determines the associated frequency domain resources for listening to the paging message.

[0310] In one implementation, the default frequency domain resource is the overlay frequency domain resource.

[0311] In one implementation, the paging message is sent in one or more of the following ways:

[0312] Method 1: Upon receiving multiple associated frequency domain resources from the first communication device, the paging message is sent by the second communication device on a target frequency domain resource selected from the multiple associated frequency domain resources; wherein, the associated frequency domain resources include all frequency domain resources included in the cell or frequency domain resources indicated by the second communication device for sending the paging message that can cover the first communication device.

[0313] For example, if the first indication information received by the second communication device includes multiple associated frequency domain resources CC1 and CC2 determined by the first communication device using the above method, the second communication device selects CC1 as the target frequency domain resource and sends a paging message on CC1. The second communication device can send information about the target frequency domain resource to the first communication device through the second indication information or other indication information. The first communication device can listen for the paging message sent by the second communication device on CC1.

[0314] Method 2: When the associated frequency domain resources of multiple first communication devices within the first communication device group are different, the paging message is sent on the coverage layer frequency domain resources; wherein, the first communication device group includes multiple first communication devices.

[0315] For example, the first communication device group G1 includes UE1 and UE2, where UE1's associated frequency domain resources are CC1 and CC2, and UE2's associated frequency domain resources are CC3 and CC4. In this case, the second communication device can send paging messages to UE1 and UE2 in G1 on the coverage layer frequency domain resources.

[0316] Method 3: If one or more negative indications related to coverage are received and the first communication device is not within the coverage range of other associated frequency domain resources, the paging message is sent on the coverage layer frequency domain resources; wherein, the negative indication is used to indicate that the coverage of the first communication device in the associated frequency domain resources is not within the coverage range of the associated frequency domain resources.

[0317] For example, if the second communication device receives a negative indication of the coverage status of the associated frequency domain resource CC1, it can be known that the first communication device is not within the coverage range of CC1, and the second communication device can send a paging message to the first communication device on the coverage layer frequency domain resource.

[0318] For example, if the second communication device receives a negative indication of the coverage status of all associated frequency domain resources CC1 and CC2, the second communication device can send a paging message to the first communication device on the coverage layer frequency domain resources.

[0319] For example, if the second communication device receives a negative indication of the coverage status of the associated frequency domain resource CC1, but the first communication device is within the coverage range of the associated frequency domain resource CC2, the second communication device can send a paging message to the first communication device on CC2.

[0320] For specific examples of the second communication device executing communication methods 600 and 700 in this embodiment, please refer to the relevant descriptions of the second communication device in methods 300, 400 and 500 above. For the sake of brevity, they will not be repeated here.

[0321] In one application scenario, under the modeling assumption that each cell in a 6G system can contain multiple carriers, an enhanced paging mechanism is proposed. This mechanism allows the network to flexibly allocate paging load on different carriers within the cell as needed. When different carriers have different coverage areas, the network can determine the specific coverage situation of the UE, ensuring that the paging message is successfully received by the UE.

[0322] Example 1: Introducing UE-to-network indication information to indicate the UE's carrier coverage status. The network then sends a paging message based on the UE's coverage status. In this approach, the indication information can be as simple as possible, without requiring the UE to fully access the network (unlike TAU / RNAU). This indication information can be a physical layer signal or sequence. Alternatively, it can be MAC CE or RRC signaling, as shown in Figure 8.

[0323] S801. The UE receives cell configuration information sent by the network (NW), which includes one or more of the following:

[0324] (1) Information on the frequency domain resources included in the cell; such as frequency point location, frequency domain range, frequency domain resource number, function of the frequency domain resource, whether there is a reference signal, whether there is SIB / RACH / Paging, etc.; where a frequency domain resource may include a carrier or a BWP, etc.

[0325] (2) Reference signal configuration on frequency domain resources;

[0326] (3) The frequency domain resources and / or frequency domain resource numbers used for paging in this cell;

[0327] (4) Determine whether it is within the coverage area of ​​frequency domain resources and configure relevant conditions, such as thresholds;

[0328] (5) Paging-related configuration, which can be the paging-related configuration of the CC used to send paging messages. Examples include one or more of the following:

[0329] Search space configuration;

[0330] PO / PF calculation related parameters;

[0331] UE group configuration;

[0332] Uplink signal-related configurations, including resource locations and power control parameters for one or more associated uplink signals on each UE / each UE group and / or on each frequency domain resource and / or on each reference signal.

[0333] In this embodiment, the reference signal configuration and / or paging group configuration can be configured via SIB messages. Each UE / each UE group determines the reference signal uplink resources it uses according to the rules configured by the network / defined by the protocol; or the reference signal is configured via dedicated RRC signaling, that is, the network configures dedicated uplink resources for each UE / each UE group.

[0334] In step S801, the UE can determine the frequency domain resources that it needs to listen to paging messages based on the network configuration.

[0335] S802. The UE determines its coverage in various frequency domain resources, such as various CCs. An example of the determination method is as follows:

[0336] (1) For frequency domain resources with associated reference signal configurations, determine whether the UE is within the coverage of the corresponding frequency domain resources by detecting and / or measuring the corresponding reference signals, based on the network configuration (e.g., reference signal configuration on the frequency domain resources). For example, by comparing with the reference signal strength threshold configured by the network.

[0337] (2) For frequency domain resources without associated reference signal configurations (the UE determines the coverage status of other frequency domain resources based on the coverage frequency domain reference signal), the UE detects and measures the strength of the coverage layer / related reference signal, and determines the coverage status based on the measurement results and the thresholds configured by the network for different frequency domain resources. If the measurement result is greater than or equal to Thre1 and / or the measurement result is less than Thre2, the UE is considered to be within the coverage area of ​​a certain frequency domain resource (if different frequency domain resources are considered to be co-located, the coverage areas of different frequency domain resources are concentric circles, and the coverage status of the UE can be determined by determining which concentric circle the UE is in). In particular, other parameters can also be considered when determining the coverage status based on the measured signal strength, such as power control parameters, uplink related parameters, etc. (Refer to the formula / method of the S criterion for determining whether it is within the coverage area in the above text).

[0338] In step S802, the UE can confirm whether it can receive the paging message sent on each carrier, whether or not a reference signal is present on each carrier.

[0339] S803. The UE determines the relevant configuration of the frequency domain resources (associated frequency domain resources or target frequency domain resources) for receiving paging messages, including one or more of the following methods:

[0340] (1) Updated PF / PO calculation formula. For example, the updated PO calculation formula includes a frequency domain dimension, such as: C = (UE_ID) mod M, where M is the number of CCs sent for paging (based on network configuration), and C is the CC number received by the UE for paging. For example, PO is calculated for monitoring.

[0341] (2) The network indicates the frequency domain resources that the UE listens to in paging. This indication can be in the form of grouping, such as indicating the frequency domain resources / frequency domain resource number that a certain group of UEs listens to in paging.

[0342] (3) Select one or more CCs from all coverable CCs based on signal quality / UE implementation. If multiple UEs are selected, monitoring needs to be performed on multiple CCs. This method can continue processing based on the processing results of S802.

[0343] (4) Whether to listen for paging on non-coverage layer carrier resources.

[0344] Specifically, the order in which the UE determines the frequency domain location and time domain location of the listening paging can be:

[0345] (1) First determine the frequency domain resources, and then calculate the time domain PF / PO based on the paging-related configuration associated with the frequency domain; applicable to situations where the paging configuration is different for each frequency domain resource.

[0346] (2) First determine the time domain PO / PF location, then determine which frequency domain resource it is on; applicable to situations where the paging configuration is the same for each frequency domain resource / time domain location is aligned;

[0347] (3) The order in which the UE determines the UE is not limited.

[0348] In step S803, the UE can determine the specific carrier of the paging request it is listening to.

[0349] S804. The UE sends indication information to the network according to its configuration. For example, it sends a coverage indication.

[0350] In one example, the indication information may indicate the carrier coverage of the UE, and may include one or more of the following:

[0351] (1) Indicates the CC number in-coverage, for all CCs or the CC used to send paging, as indicated by the network;

[0352] (2) Indicates its reference signal measurement value / measurement level;

[0353] (3) Indicate whether it can or cannot receive paging on the identified frequency domain resources, as shown in the following example:

[0354] ACK+NACK method, or NACK only method.

[0355] The triggering conditions for sending the indication information in this step are one or more of the following:

[0356] (1) Upon arriving at a new residential area;

[0357] (2) Based on TAI / RNAI triggering;

[0358] (3) The coverage status (or coverage condition) of frequency domain resources has changed (this can be determined based on the processing results of S802);

[0359] (4) The measured reference signal strength meets the threshold condition, being higher than a certain threshold and / or lower than a certain threshold;

[0360] (5) Receive frequency domain resource configuration / instruction for paging messages sent by the network.

[0361] (6) The frequency domain resources for receiving paging calculated / indicated are not the frequency domain resources covered by the UE.

[0362] In addition, this instruction may also indicate (implicitly / explicitly) one or more of the following:

[0363] UE ID (6G-TMSI), X-RNTI;

[0364] UE group ID.

[0365] For example, an implicit approach could be indicated by the association between the ID and the resource configuration of the uplink signal.

[0366] The order of the above steps S802, S803, and S804 is not restricted and may vary depending on the specific mechanism.

[0367] S805. Paging based on UE indication and paging strategy. For example, the network sends paging messages on one or more frequency domain resources (target frequency domain resources) as needed, based on UE indication and paging strategy.

[0368] (1) If the network receives available frequency domain resources for each UE or each UE group, it sends a paging message on the available frequency domain resources indicated by the UE. If there are multiple available frequency domain resources, the network selects one or more to send paging messages. If it is in the form of UE groups, but the coverage of the same group of UEs is different, the paging message is sent on the coverage layer frequency domain resources.

[0369] (2) If the network receives a NACK in each UE group, it will send a paging message in the coverage layer frequency domain resources.

[0370] Example 2: Enhance the existing TAU / RANU mechanism so that it can indicate the carrier coverage status of the UE. The network sends a paging message (or other message format that references TAU / RANU) based on the coverage status of the UE, as shown in Figure 9.

[0371] S901. The UE receives cell configuration information sent by the network, which includes one or more of the following:

[0372] (1) Configuration information in Example 1;

[0373] (2) TAI information, including one or more TAI information and / or the correspondence between TAI information and each frequency domain resource;

[0374] (3) RNA information, including the correspondence between one or more RNA information and each frequency domain resource;

[0375] In this step, TAI / RNA information is associated with frequency domain resources rather than with cells, resulting in finer granularity.

[0376] S902. The UE determines its coverage in each frequency domain resource. The determination method can be found in the relevant description of S802 in Implementation Example 1.

[0377] S903. The UE determines the relevant configuration of the frequency domain resources for receiving paging, see the relevant description of S803 in Embodiment 1;

[0378] S904. The UE executes the TAU / RNAU procedure based on its configuration and coverage. An example of how the TAU / RNAU procedure is triggered is as follows:

[0379] (1) When the UE detects that its TAI and RNAU-ID have changed from those it previously resided in;

[0380] (2) Upon arriving at a new residential area;

[0381] (3) The coverage status of frequency domain resources has changed;

[0382] (4) The measured reference signal strength meets the threshold condition, being higher than a certain threshold and / or lower than a certain threshold;

[0383] (5) Receive frequency domain resource configuration / instruction for receiving a paging message from the network;

[0384] (6) The frequency domain resources for receiving paging calculated / indicated are not the frequency domain resources covered by the UE;

[0385] (7) It is carried out periodically.

[0386] The TAU / RANU procedure can indicate one or more of the following:

[0387] (1) Indicates the CC number in-coverage, for all CCs or the CC used to send paging, as indicated by the network;

[0388] (2) Indicates its reference signal measurement value / measurement level;

[0389] (3) Indicate whether it can or cannot receive paging on the identified frequency domain resources, as shown in the following example:

[0390] ACK+NACK method, or NACK only method.

[0391] (4) UE ID (6G-TMSI), X-RNTI; X represents a certain function, for example, P-RNTI represents the RNTI of the paging function.

[0392] (5)UE group ID.

[0393] S905. The network transmits paging messages on one or more frequency domain resources as needed, based on the UE TAU / RNAU indication and paging policy. See the relevant description of S805 in Embodiment 1.

[0394] Example 3: Priority-based paging load allocation strategy. For example, the network sends high-priority paging messages on the coverage area and / or the coverage layer with the largest coverage, based on paging priority and load conditions. Lower-priority messages are sent on other frequency domain resources if necessary, as shown in Figure 10.

[0395] S1001. The UE receives cell configuration information sent by the network, which includes the configuration information in Example 1.

[0396] S1002. The network indicates the associated frequency domain resources for each paging message, for example, the network sends a paging distribution indication message to the UE:

[0397] (1) The instruction is in the form of DCI, SIB message, or sequence;

[0398] (2) This indication information includes the frequency domain resources transmitted by paging for each UE and / or each UE group. The UE group is determined according to PEI, i.e., based on the UEID confirmation method and / or the CN and / or RAN configuration method;

[0399] (3) This instruction information shall be sent at least for the first time length before each PF / PO.

[0400] Each UE and each UE group's carrier resources can be determined in one or more of the following ways:

[0401] (1) UE capability, i.e., whether the UE supports paging distribution;

[0402] (2) The priority of paging messages, that is, high-priority paging messages are sent on the coverage layer frequency domain resources first;

[0403] (3) Paging load in the network.

[0404] (4) Network implementation is determined.

[0405] S1003. The UE determines the frequency domain resources and / or coverage status for receiving the paging message based on the network indication, and reports back to the network whether the paging message can be received, and / or reports back to the network the available frequency domain resources. The method for determining the coverage status can be found in the relevant description of S802 in Embodiment 1, and examples of the indication information can be found in the relevant description of S904 in Embodiment 2.

[0406] S1004. The network sends paging messages on one or more frequency domain resources as needed according to the UE instruction and paging policy: see the relevant description of S805 in Embodiment 1.

[0407] The scheme in this embodiment allows for more flexible cell deployment and lower power consumption by including multiple frequency domain resources within a single cell. Under this cell modeling approach, paging distribution can allocate paging load across different frequency layers as needed. However, considering that the coverage areas of frequency domain resources at different addresses and / or inter-bands do not completely overlap, ensuring that the UE can receive paging messages sent by the network on different frequency domain resources needs to be addressed.

[0408] In addition to the above solutions, another approach can be taken to ensure that the UE can receive paging messages from different frequency domain resources in the coverage area based on network implementation, such as:

[0409] 1. SSB coverage should be limited to the intersection of all CCs, or NW should only allow the distribution of CCs with the same coverage.

[0410] 2. Paging sweeping among differential CCs and / or differential beams, the UE can only monitor one CC for paging reception. This mainly relies on NW implementation; the UE can either scan or monitor only a single CC.

[0411] Figure 11 is a schematic block diagram of a first communication device 1100 according to an embodiment of the present application. The first communication device 1100 may include:

[0412] The transceiver unit 1110 is used to receive configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0413] In one implementation, the multiple frequency domain resources included in the cell include one or more of the following: multiple carrier elements (CC) included in the cell, multiple bandwidth portions (BWP) included in the cell, multiple frequency bands included in the cell, and multiple combinations of frequency bands included in the cell.

[0414] In one implementation, the configuration information includes one or more of the following:

[0415] Information on multiple frequency domain resources included in this cell;

[0416] The reference signal configuration associated with these multiple frequency domain resources;

[0417] Configuration of comparison conditions used to determine whether the first communication device is within the coverage area of ​​one or more frequency domain resources.

[0418] Figure 12 is a schematic block diagram of a first communication device 1200 according to another embodiment of this application. The communication device may include a transceiver unit 1210, as described in the relevant description of the transceiver unit 1110 of the communication device above. In one embodiment, the first communication device further includes:

[0419] The processing unit 1220 is used to determine the coverage of the frequency domain resources included in the cell by the first communication device based on the configuration information.

[0420] In one implementation, the coverage of a frequency domain resource indicates whether the first communication device is within the coverage area of ​​that frequency domain resource.

[0421] In one implementation, the measurement result of a reference signal associated with a frequency domain resource satisfies the comparison condition corresponding to the frequency domain resource, and the first communication device is within the coverage area of ​​the frequency domain resource.

[0422] In one implementation, the first communication device being within the coverage area of ​​the frequency domain resource indicates that the first communication device is capable of receiving paging messages sent on the frequency domain resource.

[0423] In one implementation, when a reference signal is configured on a frequency domain resource, the coverage is determined based on measurements of the reference signal.

[0424] In one implementation, when no reference signal is configured on a frequency domain resource, the coverage is determined based on the measurement results of the reference signal of the frequency domain resource associated with that frequency domain resource.

[0425] In one implementation, the configuration of comparison conditions for determining whether the first communication device is within the coverage area of ​​one or more frequency domain resources includes one or more of the following: threshold parameters, power control parameters, and uplink correlation parameters.

[0426] In one implementation, the configuration information further includes: information on the frequency domain resources of the cell used for paging; and paging-related configurations.

[0427] In one implementation, the information on the frequency domain resources used for paging in the cell includes information on the frequency domain resources specifically used for paging in the cell.

[0428] In one implementation, the paging-related configuration includes: paging-related configuration of the frequency domain resources of the cell used to send paging messages.

[0429] In one implementation, the paging-related configuration includes one or more of the following:

[0430] Search space configuration;

[0431] PO calculation related parameters;

[0432] PF calculation related parameters;

[0433] The packet configuration of the first communication device;

[0434] The relevant configuration for the first instruction information.

[0435] In one implementation, the processing unit is further configured to determine, based on the configuration information, the associated frequency domain resources for listening to the paging message within the cell.

[0436] In one implementation, the configuration information includes associated frequency domain resources for listening to the paging message within the cell.

[0437] In one implementation, the method for determining the associated frequency domain resource includes one or more of the following:

[0438] The calculation is based on the identifier of the first communication device and the number of frequency domain resources used to send the paging message;

[0439] The second communication device instructs the first communication device to listen to the frequency domain resources of the paging message;

[0440] One or more frequency domain resources are selected from all frequency domain resources covering the first communication device within the cell. For example, one or more frequency domain resources are selected based on signal quality and / or the implementation of the first communication device.

[0441] In one implementation, the formula for calculating the associated frequency domain resources includes: C = (UE_ID) mod M, where M represents the number of frequency domain resources that send the paging message; C represents the number of the frequency domain resources that the first communication device receives the paging message; and UE_ID represents the identifier of the first communication device.

[0442] In one embodiment, the identifier of the first communication device includes one or more of the following: an identifier that uniquely identifies the first communication device in the access network RAN; an identifier that uniquely identifies the first communication device in the core network CN; an identifier that uniquely identifies the first communication device in the cell; and an identifier that uniquely identifies the first communication device in the registration area.

[0443] In one implementation, the second communication device instructing the first communication device to listen to the paging message in the frequency domain resources includes: the second communication device instructing the first communication device to use frequency domain resources specifically for listening to the paging message.

[0444] In one implementation, the time-domain resources of the paging message are determined based on the paging-related configuration of the associated frequency-domain resources of the paging message.

[0445] In one implementation, the paging-related configurations of the multiple frequency domain resources included in the cell are different.

[0446] In one implementation, the associated frequency domain resources and the time domain resources of the paging message are determined separately.

[0447] In one implementation, the paging-related configurations of each frequency domain resource included in the cell are the same and / or the positions of the time domain resources corresponding to each frequency domain resource are aligned.

[0448] In one implementation, the transceiver unit is further configured to send first instruction information based on the configuration information.

[0449] In one implementation, the first indication information indicates the coverage of frequency domain resources included in the cell.

[0450] In one embodiment, the coverage of the frequency domain resources included in the cell includes: indication information of frequency domain resources in the cell that can cover and / or cannot cover the first communication device, and / or indication information of frequency domain resources in the second communication device used to send the paging message that can cover and / or cannot cover the first communication device.

[0451] In one implementation, the first indication information indicates information about the associated frequency domain resources for which the first communication device listens to the paging message.

[0452] In one embodiment, the information of the associated frequency domain resources for which the first communication device listens to the paging message includes: a coverage indication of the associated frequency domain resources; and the number of the frequency domain resources that can receive the paging message and cover the first communication device.

[0453] In one implementation, the coverage indication of the associated frequency domain resource includes one or more of the following:

[0454] A positive indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is within the coverage area of ​​the associated frequency domain resource;

[0455] A negative indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is not within the coverage area of ​​the associated frequency domain resource.

[0456] In one implementation, the first indication information indicates the measurement results of reference signals for the frequency domain resources included in the cell.

[0457] In one implementation, the triggering conditions for the first indication information include one or more of the following:

[0458] The first communication device was moved to the new cell.

[0459] TAI triggered;

[0460] RNAI triggering;

[0461] The coverage of frequency domain resources included in this cell has changed;

[0462] The measurement results of the reference signal meet the comparison conditions;

[0463] Receive frequency domain resource configuration and / or indication from the second communication device that sent the paging message;

[0464] The associated frequency domain resources are not frequency domain resources that can cover the first communication device.

[0465] In one implementation, the first indication information also explicitly or implicitly indicates one or more of the following:

[0466] The identifier of the first communication device;

[0467] Temporary identifier for wireless network;

[0468] The group identifier of the first communication device.

[0469] In one implementation, the first indication information is indication information during the TAU and / or RNAU process.

[0470] In one implementation, the configuration information is also used to indicate one or more of the following:

[0471] TA related information;

[0472] RNA-related information.

[0473] In one implementation, the triggering condition for the first indication information further includes one or more of the following:

[0474] The first communication device detected a change in the current TAI and / or RNAU-ID compared to the TAI and / or RNAU-ID of the previously resided cell;

[0475] Periodic triggering.

[0476] In one implementation, the transceiver unit is further configured to receive second indication information, which indicates the associated frequency domain resources of one or more paging messages.

[0477] In one implementation, the second indication information is indicated via DCI, SIB messages, or sequence indication.

[0478] In one implementation, the second indication information is used to indicate the frequency domain resources where the paging message of the first communication device and / or the group of first communication devices is located.

[0479] In one implementation, the second indication information is sent before each PF and / or each PO for a first time length.

[0480] In one implementation, the method for determining the associated frequency domain resources of the paging messages of the first communication device and / or the group of first communication devices includes one or more of the following:

[0481] The capabilities of the first communication device;

[0482] Priority of paging messages;

[0483] Paging load status of the second communication device;

[0484] The implementation of this second communication device.

[0485] In one implementation, the method for determining the first group of communication devices includes one or more of the following:

[0486] Based on the identification of the first communication device;

[0487] CN configuration;

[0488] RAN configuration.

[0489] In one implementation, the transceiver unit is also configured to receive the paging message on the target frequency domain resource.

[0490] In one implementation, the target frequency domain resource includes one or more of the following:

[0491] The frequency domain resources configured in the second communication device for sending the paging message can cover the frequency domain resources of the first communication device;

[0492] Default frequency domain resources;

[0493] The first communication device determines the associated frequency domain resources for listening to the paging message.

[0494] In one implementation, the default frequency domain resource is the overlay frequency domain resource.

[0495] The first communication devices 1100 and 1200 in this application embodiment can realize the corresponding functions of the first communication devices in the aforementioned method embodiments. The processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in the first communication devices 1100 and 1200 can be found in the corresponding descriptions in the above method embodiments, and will not be repeated here. It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the first communication devices 1100 and 1200 in the application embodiments can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0496] Figure 13 is a schematic block diagram of a second communication device 1300 according to an embodiment of the present application. The second communication device 1300 may include:

[0497] The transceiver unit 1310 is used to send configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0498] In one implementation, the multiple frequency domain resources included in the cell include multiple CCs included in the cell, multiple BWPs included in the cell, multiple frequency bands included in the cell, and combinations of multiple frequency bands included in the cell.

[0499] In one implementation, the configuration information includes one or more of the following:

[0500] Information on multiple frequency domain resources included in this cell;

[0501] The reference signal configuration associated with these multiple frequency domain resources;

[0502] Configuration of comparison conditions used to determine whether the first communication device is within the coverage area of ​​one or more frequency domain resources.

[0503] In one implementation, the configuration information is used to determine the coverage of frequency domain resources included in the cell by the first communication device.

[0504] In one implementation, the coverage of a frequency domain resource indicates whether the first communication device is within the coverage area of ​​that frequency domain resource.

[0505] In one implementation, if the measurement result of a reference signal associated with a frequency domain resource satisfies the comparison condition corresponding to that frequency domain resource, it indicates that the first communication device is within the coverage area of ​​that frequency domain resource.

[0506] In one implementation, the first communication device being within the coverage area of ​​the frequency domain resource indicates that the first communication device is capable of receiving paging messages sent on the frequency domain resource.

[0507] In one implementation, when a reference signal is configured on a frequency domain resource, the coverage is determined based on measurements of the reference signal.

[0508] In one implementation, when no reference signal is configured on a frequency domain resource, the coverage is determined based on the measurement results of the reference signal of the frequency domain resource associated with that frequency domain resource.

[0509] In one implementation, the configuration of comparison conditions for determining whether the first communication device is within the coverage area of ​​one or more frequency domain resources includes one or more of the following: threshold parameters, power control parameters, and uplink correlation parameters.

[0510] In one implementation, the configuration information further includes: information on the frequency domain resources of the cell used for paging; and paging-related configurations.

[0511] In one implementation, the information on the frequency domain resources used for paging in the cell includes information on the frequency domain resources specifically used for paging in the cell.

[0512] In one implementation, the paging-related configuration includes: paging-related configuration of the frequency domain resources of the cell used to send paging messages.

[0513] In one implementation, the paging-related configuration includes one or more of the following:

[0514] Search space configuration;

[0515] PO calculation related parameters;

[0516] PF calculation related parameters;

[0517] The packet configuration of the first communication device;

[0518] The relevant configuration for the first instruction information.

[0519] In one implementation, the configuration information is used to determine the associated frequency domain resources for listening to the paging message within the cell.

[0520] In one implementation, the method for determining the associated frequency domain resource includes one or more of the following:

[0521] The calculation is based on the identifier of the first communication device and the number of frequency domain resources used to send the paging message;

[0522] The second communication device instructs the first communication device to listen to the frequency domain resources of the paging message;

[0523] Select one or more frequency domain resources from all frequency domain resources in the cell that can cover the first communication device.

[0524] In one implementation, the formula for calculating the associated frequency domain resources includes: C = (UE_ID) mod M, where M represents the number of frequency domain resources that send the paging message; C represents the number of the frequency domain resources that the first communication device receives the paging message; and UE_ID represents the identifier of the first communication device.

[0525] In one embodiment, the identifier of the first communication device includes one or more of the following: an identifier that uniquely identifies the first communication device in the access network RAN; an identifier that uniquely identifies the first communication device in the core network CN; an identifier that uniquely identifies the first communication device in the cell; and an identifier that uniquely identifies the first communication device in the registration area.

[0526] In one implementation, the second communication device instructing the first communication device to listen to the paging message in the frequency domain resources includes: the second communication device instructing the first communication device to use frequency domain resources specifically for listening to the paging message.

[0527] In one implementation, the time-domain resources of the paging message are determined based on the paging-related configuration of the associated frequency-domain resources of the paging message.

[0528] In one implementation, the paging-related configurations of the multiple frequency domain resources included in the cell are different.

[0529] In one implementation, the associated frequency domain resources and the time domain resources of the paging message are determined separately.

[0530] In one implementation, the paging-related configurations of each frequency domain resource included in the cell are the same and / or the positions of the time domain resources corresponding to each frequency domain resource are aligned.

[0531] In one embodiment, the transceiver unit is also used to receive first instruction information.

[0532] In one implementation, the first indication information indicates the coverage of frequency domain resources included in the cell for the first communication device.

[0533] In one embodiment, the coverage of the frequency domain resources included in the cell includes: indication information of frequency domain resources in the cell that can cover and / or cannot cover the first communication device, and / or indication information of frequency domain resources in the second communication device used to send the paging message that can cover and / or cannot cover the first communication device.

[0534] In one implementation, the first indication information indicates that the first communication device is listening to information about the associated frequency domain resources of the paging message.

[0535] In one embodiment, the information of the associated frequency domain resources for which the first communication device listens to the paging message includes: a coverage indication of the associated frequency domain resources; and the number of the frequency domain resources that can receive the paging message and cover the first communication device.

[0536] In one implementation, the coverage indication of the associated frequency domain resource includes one or more of the following:

[0537] A positive indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is within the coverage area of ​​the associated frequency domain resource;

[0538] A negative indication is used to indicate that the coverage of the first communication device in the associated frequency domain resource is not within the coverage area of ​​the associated frequency domain resource.

[0539] In one implementation, the first indication information indicates the measurement results of reference signals for the frequency domain resources included in the cell.

[0540] In one implementation, the triggering conditions for the first indication information include one or more of the following:

[0541] The first communication device was moved to the new cell.

[0542] TAI trigger;

[0543] RNAI triggering;

[0544] The coverage of frequency domain resources included in this cell has changed;

[0545] The measurement results of the reference signal meet the comparison conditions;

[0546] Receive frequency domain resource configuration and / or indication from the second communication device that sent the paging message;

[0547] The associated frequency domain resources are not frequency domain resources that can cover the first communication device.

[0548] In one implementation, the first indication information also explicitly or implicitly indicates one or more of the following:

[0549] The identifier of the first communication device;

[0550] Temporary identifier for wireless network;

[0551] The group identifier of the first communication device.

[0552] In one implementation, the first indication information is indication information during the TAU and / or RNAU process.

[0553] In one implementation, the configuration information is also used to indicate one or more of the following:

[0554] TA related information;

[0555] RNA-related information.

[0556] In one implementation, the triggering condition for the first indication information further includes one or more of the following:

[0557] The first communication device detected a change in the current TAI and / or RNAU-ID compared to the TAI and / or RNAU-ID of the previously resided cell;

[0558] Periodic triggering.

[0559] In one implementation, the transceiver unit is further configured to transmit second indication information, which indicates the associated frequency domain resources of one or more paging messages.

[0560] In one implementation, the second indication information is indicated via DCI, SIB messages, or sequence indication.

[0561] In one implementation, the second indication information is used to indicate the frequency domain resources where the paging message of the first communication device and / or the group of first communication devices is located.

[0562] In one implementation, the second indication information is sent before each PF and / or each PO for a first time length.

[0563] In one implementation, the method for determining the associated frequency domain resources of the paging messages of the first communication device and / or the group of first communication devices includes one or more of the following:

[0564] The capabilities of the first communication device;

[0565] Priority of paging messages;

[0566] Paging load status of the second communication device;

[0567] The implementation of this second communication device.

[0568] In one implementation, the method for determining the first group of communication devices includes one or more of the following:

[0569] Based on the identification of the first communication device;

[0570] CN configuration;

[0571] RAN configuration.

[0572] In one implementation, the transceiver unit is also configured to transmit the paging message on the target frequency domain resource.

[0573] In one implementation, the target frequency domain resource includes one or more of the following:

[0574] The frequency domain resources configured in the second communication device for sending the paging message can cover the frequency domain resources of the first communication device;

[0575] Default frequency domain resources;

[0576] The first communication device determines the associated frequency domain resources for listening to the paging message.

[0577] In one implementation, the default frequency domain resource is the overlay frequency domain resource.

[0578] In one implementation, the paging message is sent in one or more of the following ways:

[0579] Upon receiving multiple associated frequency domain resources from the first communication device, the paging message is transmitted by the second communication device on a target frequency domain resource selected from the multiple associated frequency domain resources; wherein, the associated frequency domain resources include all frequency domain resources included in the cell or frequency domain resources indicated by the second communication device for transmitting the paging message that can cover the first communication device;

[0580] When the associated frequency domain resources of multiple first communication devices within a first communication device group are different, the paging message is sent on the coverage layer frequency domain resources; wherein, the first communication device group includes multiple first communication devices;

[0581] If one or more negative indications related to coverage are received and the first communication device is not within the coverage area of ​​other associated frequency domain resources, the paging message is sent on the coverage layer frequency domain resources; wherein the negative indication is used to indicate that the coverage of the first communication device on the associated frequency domain resource is not within the coverage area of ​​the associated frequency domain resource.

[0582] The second communication device 1300 of this application embodiment can realize the corresponding functions of the second communication device in the foregoing method embodiments. The processes, functions, implementation methods, and beneficial effects of each module (sub-module, unit, or component, etc.) in the second communication device 1300 can be found in the corresponding descriptions in the above method embodiments, and will not be repeated here. It should be noted that the functions described for each module (sub-module, unit, or component, etc.) in the second communication device 1300 of the application embodiment can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0583] Figure 14 is a schematic structural diagram of a communication device 1400 according to an embodiment of this application. The communication device 1400 includes a processor 1410, which can call and run computer programs from memory to enable the communication device 1400 to implement the methods in the embodiments of this application.

[0584] In one embodiment, the communication device 1400 may further include a memory 1420. The processor 1410 can retrieve and run computer programs from the memory 1420 to enable the communication device 1400 to implement the methods described in the embodiments of this application.

[0585] The memory 1420 can be a separate device independent of the processor 1410, or it can be integrated into the processor 1410.

[0586] In one embodiment, the communication device 1400 may further include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0587] The transceiver 1430 may include a transmitter and a receiver. The transceiver 1430 may further include an antenna, and the number of antennas may be one or more.

[0588] In one embodiment, the communication device 1400 may be the first communication device in the embodiments of this application, and the communication device 1400 may implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0589] In one embodiment, the communication device 1400 may be a second communication device in the embodiments of this application, and the communication device 1400 may implement the corresponding processes implemented by the second communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0590] Figure 15 is a schematic structural diagram of a chip 1500 according to an embodiment of this application. The chip 1500 includes a processor 1510, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0591] In one embodiment, chip 1500 may further include memory 1520. Processor 1510 can retrieve and run computer programs from memory 1520 to implement the methods executed by a terminal device or network device in this embodiment.

[0592] The memory 1520 can be a separate device independent of the processor 1510, or it can be integrated into the processor 1510.

[0593] In one embodiment, the chip 1500 may further include an input interface 1530. The processor 1510 can control the input interface 1530 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0594] In one embodiment, the chip 1500 may further include an output interface 1540. The processor 1510 can control the output interface 1540 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.

[0595] In one implementation, the chip can be applied to the first communication device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the first communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0596] In one implementation, the chip can be applied to the second communication device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the second communication device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0597] The chips used in the first communication device and the second communication device can be the same chip or different chips.

[0598] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0599] The processors mentioned above can be general-purpose processors, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processors mentioned above can be microprocessors or any conventional processor.

[0600] The aforementioned memory can be volatile memory or non-volatile memory, or a combination of both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM).

[0601] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0602] Figure 16 is a schematic block diagram of a communication system 1600 according to an embodiment of the present application. The communication system 1600 includes a first communication device 1610 and a second communication device 1620.

[0603] The first communication device 1610 is used to receive configuration information, which is used to determine the target frequency domain resources for the first communication device to listen for paging messages within the multiple frequency domain resources included in the cell.

[0604] The second communication device 1620 is used to send the configuration information.

[0605] The first communication device 1610 can be used to implement the corresponding functions implemented by the first communication device in the above method, and the second communication device 1620 can be used to implement the corresponding functions implemented by the second communication device in the above method. For the sake of brevity, further details are omitted here.

[0606] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0607] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0608] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0609] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

A communication method, comprising: A first communication device receives configuration information, the configuration information being used to determine a target frequency domain resource in which the first communication device listens for a paging message in a plurality of frequency domain resources included in a cell. The method of claim 1, wherein, The plurality of frequency domain resources included in the cell comprises one or more of: a plurality of component carriers (CCs) included in the cell, a plurality of bandwidth parts (BWPs) included in the cell, a plurality of frequency bands included in the cell, and a plurality of frequency band combinations included in the cell. The method according to claim 1 or 2, wherein The configuration information comprises one or more of: Information of the plurality of frequency domain resources included in the cell; Reference signal configuration associated with the plurality of frequency domain resources; Configuration of a comparison condition used to determine whether the first communication device is in coverage of one or more frequency domain resources. The method of any one of claims 1 to 3, wherein, The method further comprises: The first communication device determines, according to the configuration information, coverage of the first communication device in a frequency domain resource included in the cell. The method of claim 4, wherein, The coverage of a frequency domain resource indicates whether the first communication device is in coverage of the frequency domain resource. The method of claim 4, wherein, A measurement result of a reference signal associated with a frequency domain resource satisfying a comparison condition corresponding to the frequency domain resource indicates that the first communication device is in coverage of the frequency domain resource. The method of claim 6, wherein, The first communication device being in coverage of the frequency domain resource indicates that the first communication device can receive a paging message transmitted on the frequency domain resource. The method of any one of claims 4 to 7, wherein, In a case where a reference signal is configured on a frequency domain resource, the coverage is determined based on a measurement result of the reference signal. The method of any one of claims 4 to 7, wherein, In a case where no reference signal is configured on a frequency domain resource, the coverage is determined based on a measurement result of a reference signal of a frequency domain resource related to the frequency domain resource. The method of any one of claims 3-8, wherein The configuration of the comparison condition used to determine whether the first communication device is in coverage of one or more frequency domain resources comprises one or more of: a threshold parameter, a power control parameter, and an uplink related parameter. The method of any one of claims 1 to 10, wherein, The configuration information further comprises: information of a frequency domain resource used for paging by the cell; and paging related configuration. The method of claim 11, wherein, The information of the frequency domain resource used for paging by the cell comprises information of a frequency domain resource used for paging by the cell exclusively. The method according to claim 11 or 12, wherein The paging related configuration comprises paging related configuration of a frequency domain resource used by the cell to transmit a paging message. The method of any one of claims 11 to 13, wherein, The paging related configuration comprises one or more of: Search space configuration; Paging opportunity (PO) calculation related parameter; Paging frame (PF) calculation related parameter; Grouping configuration of the first communication device; Related configuration of first indication information. The method according to any one of claims 1 to 14, wherein The method further comprises: The first communication device determines, according to the configuration information, an associated frequency domain resource in which the first communication device listens for the paging message in the cell. The method according to any one of claims 1 to 15, wherein The configuration information comprises an associated frequency domain resource in which the first communication device listens for the paging message in the cell. The method according to claim 15 or 16, wherein The determination of the associated frequency domain resource comprises one or more of: Calculation based on an identity of the first communication device and a number of frequency domain resources used to transmit the paging message; Indication by a second communication device of a frequency domain resource in which the first communication device listens for the paging message; Selection of one or more frequency domain resources from all frequency domain resources of the cell that cover the first communication device. The method of claim 17, wherein, The calculation formula of the associated frequency domain resource comprises C=(UE_ID)mod M, wherein M represents the number of frequency domain resources for sending the paging message; C represents the number of the frequency domain resource for receiving the paging message by the first communication device; and UE_ID represents the identifier of the first communication device. The method of claim 18, wherein, The identifier of the first communication device comprises one or more of the following: an identifier uniquely identifying the first communication device in an access network RAN; an identifier uniquely identifying the first communication device in a core network CN; an identifier uniquely identifying the first communication device in a cell; and an identifier uniquely identifying the first communication device in a registration area. The method of claim 17, wherein, The second communication device instructs the first communication device to listen to the frequency domain resource of the paging message, comprising: the second communication device instructing the first communication device to listen to the frequency domain resource of the paging message exclusively. The method of any one of claims 15 to 20, wherein, The time domain resource of the paging message is determined based on the paging-related configuration of the associated frequency domain resource of the paging message. The method of claim 21, wherein, The paging-related configurations of the plurality of frequency domain resources included in the cell are different. The method of any one of claims 15 to 22, wherein, The associated frequency domain resource of the paging message and the time domain resource of the paging message are determined respectively. The method of claim 23, wherein, The paging-related configurations of each frequency domain resource included in the cell are the same and / or the positions of the time domain resources corresponding to each frequency domain resource are aligned. The method of any one of claims 1 to 24, wherein, The method further comprises: The first communication device sends first indication information according to the configuration information. The method of claim 25, wherein, The first indication information indicates the coverage of the frequency domain resources included in the cell for the first communication device. The method of claim 26, wherein, The coverage of the frequency domain resources included in the cell comprises: indication information of the frequency domain resources that can cover and / or cannot cover the first communication device among the frequency domain resources included in the cell, and / or indication information of the frequency domain resources that can cover and / or cannot cover the first communication device among the frequency domain resources instructed by the second communication device for sending the paging message. The method of any one of claims 25 to 27, wherein, The first indication information indicates the information of the associated frequency domain resource of the paging message listened to by the first communication device. The method of claim 28, wherein, The information of the associated frequency domain resource of the paging message listened to by the first communication device comprises: coverage indication of the associated frequency domain resource; and the number of the frequency domain resources that can cover the first communication device and can receive the paging message. The method of claim 29, wherein, The coverage indication of the associated frequency domain resource comprises one or more of the following: Positive indication, used to indicate that the first communication device is within the coverage range of the associated frequency domain resource in terms of the coverage of the associated frequency domain resource; Negative indication, used to indicate that the first communication device is not within the coverage range of the associated frequency domain resource in terms of the coverage of the associated frequency domain resource. The method of any one of claims 25-30, wherein The first indication information indicates the measurement result of the reference signal of the frequency domain resource included in the cell. The method of any one of claims 25-31, wherein The trigger condition of the first indication information comprises one or more of the following: The first communication device moves into a new cell; Tracking area identity TAI trigger; Access network RAN-based notification area identity RNAI trigger; The coverage of the frequency domain resources included in the cell changes; The measurement result of the reference signal meets a comparison condition; and The first indication information indicates the measurement result of the reference signal of the frequency domain resource included in the cell. receiving, by the first communication device, a configuration of frequency domain resources for sending the paging message and / or an indication of the configuration of frequency domain resources for sending the paging message by the second communication device; the associated frequency domain resource is not a frequency domain resource coverable by the first communication device. The method of claim 32, wherein, the first indication information explicitly or implicitly indicates one or more of the following: an identity of the first communication device; a wireless network temporary identity; a group identity of the first communication device. The method of any one of claims 25-33, wherein the first indication information is indication information in a tracking area update (TAU) and / or a radio access network (RAN) based notification area update (RNAU) procedure. The method of claim 34, wherein, the configuration information further indicates one or more of the following: TA related information; RNA related information. The method of claim 35, wherein, the triggering condition of the first indication information further comprises one or more of the following: the first communication device discovers that a current TAI and / or RNAU-ID has changed compared with a TAI and / or RNAU-ID of a cell previously camped on; periodic triggering. The method further comprises: The method of any one of claims 1 to 14, 25 to 36, wherein, receiving, by the first communication device, second indication information, the second indication information being used to indicate an associated frequency domain resource of one or more paging messages. the second indication information is indicated by a downlink control information (DCI), a system information block (SIB) message or a sequence. The method of claim 37, wherein, the second indication information is used to indicate a frequency domain resource where a paging message of the first communication device and / or a group of first communication devices is located. The method of claim 37 or 38, wherein, the second indication information is sent at a first time length before each paging frame (PF) and / or each paging occasion (PO). The method of any one of claims 37 to 39, wherein, a determination manner of the associated frequency domain resource of the paging message of the first communication device and / or the group of first communication devices comprises one or more of the following: The method of any one of claims 37 to 40, wherein, a capability of the first communication device; a priority of the paging message; a paging load situation of the second communication device; an implementation of the second communication device. a determination manner of the group of first communication devices comprises one or more of the following: The method of claim 39 or 41, wherein, determination according to an identity of the first communication device; CN configuration; RAN configuration. The method further comprises: The method of any one of claims 1 to 42, wherein, receiving, by the first communication device, the paging message on the target frequency domain resource. the target frequency domain resource comprises one or more of the following: The method of claim 43, wherein, a frequency domain resource coverable by the first communication device in frequency domain resources configured by the second communication device for sending the paging message; a default frequency domain resource; an associated frequency domain resource of the first communication device for listening to the paging message. the default frequency domain resource is an overlay frequency domain resource. The method of claim 44, wherein, A communication method comprises: sending, by a second communication device, configuration information, the configuration information being used to determine a target frequency domain resource of a first communication device for listening to a paging message in a plurality of frequency domain resources included in a cell. the plurality of frequency domain resources included in the cell comprises one or more of the following: a plurality of CCs included in the cell, a plurality of BWPs included in the cell, a plurality of frequency bands included in the cell and a plurality of frequency band combinations included in the cell. The method of claim 46, wherein, the configuration information comprises one or more of the following: The method of claim 46 or 47, wherein, information of the plurality of frequency domain resources included in the cell; a configuration of reference signals associated with the plurality of frequency domain resources; a configuration of a comparison condition for determining whether the first communication device is in a coverage range of one or more frequency domain resources. the configuration information is used to determine a coverage situation of the first communication device in a frequency domain resource included in the cell. The method of any one of claims 46-48, wherein ​ The method of claim 49, wherein, The coverage of one frequency domain resource indicates whether the first communication device is within the coverage of the frequency domain resource. The method of claim 50, wherein, The measurement result of a reference signal associated with one frequency domain resource satisfies a comparison condition corresponding to the frequency domain resource, indicating that the first communication device is within the coverage of the frequency domain resource. The method of claim 51, wherein, The first communication device being within the coverage of the frequency domain resource indicates that the first communication device can receive a paging message transmitted on the frequency domain resource. The method of any one of claims 49 to 52, wherein, In a case where a reference signal is configured on one frequency domain resource, the coverage is determined based on the measurement result of the reference signal. The method of any one of claims 49 to 52, wherein, In a case where no reference signal is configured on one frequency domain resource, the coverage is determined based on the measurement result of a reference signal of a frequency domain resource related to the frequency domain resource. The method of any one of claims 49 to 54, wherein, The comparison condition for determining whether the first communication device is within the coverage of one or more frequency domain resources comprises one or more of the following: a threshold parameter, a power control parameter, an uplink-related parameter. The configuration information further comprises: information of frequency domain resources used by the cell for paging; paging-related configuration. The method of any one of claims 46-55, wherein The information of frequency domain resources used by the cell for paging comprises information of frequency domain resources used by the cell exclusively for paging. The method of claim 56, wherein, The paging-related configuration comprises paging-related configuration of frequency domain resources used by the cell for transmitting a paging message. The method of claim 56 or 57, wherein, The paging-related configuration comprises one or more of the following: The method of any one of claims 55 to 58, wherein, search space configuration; PO calculation-related parameter; PF calculation-related parameter; group configuration of the first communication device; related configuration of the first indication information. The configuration information is used to determine an associated frequency domain resource for listening to the paging message in the cell. The method of any one of claims 46 to 59, wherein, The determination manner of the associated frequency domain resource comprises one or more of the following: The method of claim 60, wherein, calculation based on the identity of the first communication device and the number of frequency domain resources used for transmitting the paging message; the second communication device indicates the frequency domain resource for the first communication device to listen to the paging message; selection of one or more frequency domain resources from all frequency domain resources of the cell that cover the first communication device. The calculation formula of the associated frequency domain resource comprises: C = (UE_ID) mod M, wherein M represents the number of frequency domain resources used for transmitting the paging message, C represents the number of the frequency domain resource for the first communication device to receive the paging message, and UE_ID represents the identity of the first communication device. The method of claim 61, wherein, The identity of the first communication device comprises one or more of the following: an identity that uniquely identifies the first communication device in a radio access network (RAN), an identity that uniquely identifies the first communication device in a core network (CN), an identity that uniquely identifies the first communication device in a cell, and an identity that uniquely identifies the first communication device in a registration area. The method of claim 62, wherein, The second communication device indicating the frequency domain resource for the first communication device to listen to the paging message comprises the second communication device indicating the frequency domain resource that is exclusively used by the first communication device to listen to the paging message. The method of claim 61, wherein, The time domain resource of the paging message is determined based on paging-related configuration of the associated frequency domain resource of the paging message. The method of any one of claims 60 to 64, wherein, The paging-related configuration of the plurality of frequency domain resources included in the cell is different. The method of claim 65, wherein, ​ The method of any one of claims 60 to 64, wherein, The associated frequency domain resource of the paging message and the time domain resource of the paging message are determined respectively. The method of claim 67, wherein, The paging-related configuration of each frequency domain resource included in the cell is the same and / or the location of the time domain resource corresponding to each frequency domain resource is aligned. The method of any one of claims 46 to 68, wherein, The method further comprises: The second communication device receives first indication information. The method of claim 69, wherein, The first indication information indicates the coverage of the frequency domain resources included in the cell of the first communication device. The method of claim 70, wherein, The coverage of the frequency domain resources included in the cell includes: indication information of the frequency domain resources that can cover and / or cannot cover the first communication device among the frequency domain resources included in the cell, and / or indication information of the frequency domain resources that can cover and / or cannot cover the first communication device among the frequency domain resources indicated by the second communication device for sending the paging message. The method of any one of claims 69 to 71, wherein, The first indication information indicates the information of the associated frequency domain resource of the paging message that the first communication device listens to. The method of claim 72, wherein, The information of the associated frequency domain resource of the paging message that the first communication device listens to includes: coverage indication of the associated frequency domain resource; and the number of frequency domain resources that can cover the first communication device and can receive the paging message. The method of claim 73, wherein, The coverage indication of the associated frequency domain resource includes one or more of the following: A positive indication indicating that the first communication device is within the coverage of the associated frequency domain resource. A negative indication indicating that the first communication device is not within the coverage of the associated frequency domain resource. The first indication information indicates the measurement result of the reference signal of the frequency domain resource included in the cell. The method of any one of claims 69 to 74, wherein, The trigger condition of the first indication information includes one or more of the following: The method of any one of claims 69 to 75, wherein, The first communication device moves into a new cell; TAI trigger; RNAI trigger; The coverage of the frequency domain resources included in the cell changes; The measurement result of the reference signal meets the comparison condition; The frequency domain resource configuration and / or indication of the second communication device sending the paging message is received; The associated frequency domain resource is not the frequency domain resource that can cover the first communication device. The first indication information explicitly or implicitly indicates one or more of the following: The method of claim 76, wherein, The identity of the first communication device; The wireless network temporary identifier; The group identity of the first communication device. The first indication information is indication information in the TAU and / or RNAU process. The method of any one of claims 69 to 77, wherein The configuration information is also used to indicate one or more of the following: The method of claim 78, wherein, TA-related information; RNA-related information. The trigger condition of the first indication information further includes one or more of the following: The method of claim 79, wherein, The first communication device discovers that the current TAI and / or RNAU-ID has changed compared with the TAI and / or RNAU-ID of the previously camped cell; Periodic trigger. The method further comprises: The method of any one of claims 46-58, 69-80, wherein The second communication device sends second indication information, and the second indication information is used to indicate the associated frequency domain resource of one or more paging messages. The second indication information is indicated by DCI, SIB message or sequence. The method of claim 81, wherein, The second indication information is used to indicate the frequency domain resource where the paging message of the first communication device and / or the first communication device group is located. The method of claim 81 or 82, wherein, ​ The method of any one of claims 81 to 83, wherein, The second indication information is sent in a first time length before each PF and / or each PO. The method of any one of claims 81 to 84, wherein, The determination manner of the associated frequency domain resource of the paging message of the first communication device and / or the first communication device group comprises one or more of the following: The capability of the first communication device; The priority of the paging message; The paging load situation of the second communication device; The implementation of the second communication device. The method of claim 82 or 85, wherein, The determination manner of the first communication device group comprises one or more of the following: The determination according to the identity of the first communication device; CN configuration; RAN configuration. The method of any one of claims 46-86, wherein The method further comprises: The second communication device sends the paging message on the target frequency domain resource. The method of claim 87, wherein, The target frequency domain resource comprises one or more of the following: The frequency domain resource in the frequency domain resource configured by the second communication device for sending the paging message and covering the frequency domain resource of the first communication device; The default frequency domain resource; The associated frequency domain resource determined by the first communication device for listening to the paging message. The method of claim 88, wherein, The default frequency domain resource is an overlay frequency domain resource. The method of any one of claims 87 to 89, wherein, The sending manner of the paging message comprises one or more of the following: In the case of receiving a plurality of associated frequency domain resources of the first communication device, the paging message is sent on a target frequency domain resource selected by the second communication device from the plurality of associated frequency domain resources; wherein the associated frequency domain resource comprises all frequency domain resources included in the cell or frequency domain resources indicated by the second communication device for sending the paging message and covering the frequency domain resource of the first communication device; In the case that the associated frequency domain resources of a plurality of first communication devices within the first communication device group are different, the paging message is sent on an overlay frequency domain resource; wherein the first communication device group comprises a plurality of first communication devices; In the case of receiving one or more negative indications related to the coverage situation and the first communication device not being within the coverage range of other associated frequency domain resources, the paging message is sent on an overlay frequency domain resource; wherein the negative indication is used to indicate that the first communication device is not within the coverage range of the associated frequency domain resource. A first communication device comprises: A transceiver unit for receiving configuration information, the configuration information being used to determine a target frequency domain resource within a plurality of frequency domain resources included in a cell for the first communication device to listen to a paging message. A second communication device comprises: A transceiver unit for sending configuration information, the configuration information being used to determine a target frequency domain resource within a plurality of frequency domain resources included in a cell for a first communication device to listen to a paging message. A transceiver, a processor and a memory, the memory being used to store a computer program, the transceiver being used to communicate with other devices, and the processor being used to invoke and run the computer program stored in the memory, so that the communication device executes the method according to any one of claims 1 to 90. A communication device comprising: A processor is used to invoke and run a computer program from a memory, so that the device installed with the chip executes the method according to any one of claims 1 to 90. A chip comprising: ​ A computer readable storage medium storing a computer program which, when run by an apparatus, causes the apparatus to perform the method of any one of claims 1 to 90. A computer program product comprising computer program instructions causing a computer to perform the method of any one of claims 1 to 90. A computer program causing a computer to perform the method of any one of claims 1 to 90. A communication system comprising: a first communication device configured to perform the method of any one of claims 1 to 45; a second communication device configured to perform the method of any one of claims 46 to 90.

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