Cell selection or reselection method, and device and storage medium

Abstract

The present application provides a cell selection or reselection method, and a device and a storage medium. The method comprises: a terminal device receiving a first parameter configured by a network device, wherein the first parameter is used for performing selection or reselection of a first target cell, and the first target cell is related to a low power wake-up signal (LP-WUS).

Description

A cell selection or reselection method, device, and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technology, and specifically to a cell selection or reselection method and device, and a storage medium. Background Art

[0002] In the New Radio (NR) system, a wake-up signal with lower power consumption, namely the low power wake-up signal (LP-WUS), is introduced. The terminal device uses a receiver with lower power consumption to receive the LP-WUS and starts the main receiver to monitor the downlink signal after receiving the LP-WUS to achieve the purpose of energy saving.

[0003] After the introduction of LP-WUS, from the perspective of terminal devices, when camping in a cell that supports LP-WUS, the main receiver can be turned off, achieving greater power savings compared to camping in a normal cell. However, LP-WUS does not cover the entire cell. In other words, when a terminal device is in a serving cell with poor coverage, it will not be able to receive LP-WUS. The terminal device must then turn on the main receiver to monitor downlink messages. In this case, the terminal device cannot achieve the power and energy savings achieved by using LP-WUS.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a cell selection or reselection method and device, and a storage medium.

[0006] The cell selection or reselection method provided in the embodiment of the present application includes:

[0007] The terminal device receives a first parameter configured by the network device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power consumption wake-up signal LP-WUS.

[0008] The cell selection or reselection method provided in the embodiment of the present application includes:

[0009] The network device configures a first parameter to the terminal device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power consumption wake-up signal LP-WUS.

[0010] The terminal device provided in the embodiment of the present application includes:

[0011] The first communication unit is configured to receive a first parameter configured by a network device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power consumption wake-up signal LP-WUS.

[0012] The network device provided in the embodiment of the present application includes:

[0013] The second communication unit is configured to configure a first parameter to the terminal device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power wake-up signal LP-WUS.

[0014] The communication device provided in an embodiment of the present application may be a terminal device or a network device in the above-mentioned solution, and the communication device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and execute the computer program stored in the memory to perform the above-mentioned cell selection or reselection method.

[0015] The chip provided in the embodiment of the present application is used to implement the above-mentioned cell selection or reselection method.

[0016] Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned cell selection or reselection method.

[0017] The computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned cell selection or reselection method.

[0018] The computer program product provided in the embodiments of the present application includes computer program instructions, which enable a computer to execute the above-mentioned cell selection or reselection method.

[0019] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned cell selection or reselection method.

[0020] Through the above technical solution, the network device configures the first parameter for LP-WUS to the terminal device. The terminal device can select or reselect a cell based on the configured first parameter, obtain a first target cell considering LP-WUS, and ensure that the cell where the terminal device resides uses LP-WUS, thereby reducing the power consumption of the terminal device and achieving the purpose of saving power and energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] FIG1 is a schematic diagram of an application scenario of an embodiment of the present application;

[0023] FIG2 is a schematic diagram of an optional transmission of LP-WUS provided in an embodiment of the present application;

[0024] FIG3 is a schematic diagram of an optional transmission of LP-WUS provided in an embodiment of the present application;

[0025] FIG4 is an optional flowchart of a cell selection or reselection method provided in an embodiment of the present application;

[0026] FIG5 is an optional flowchart of a cell selection or reselection method provided in an embodiment of the present application;

[0027] FIG6 is an optional flowchart of a cell selection or reselection method provided in an embodiment of the present application;

[0028] FIG7 is an optional flowchart of a cell selection or reselection method provided in an embodiment of the present application;

[0029] FIG8 is an optional flowchart of a cell selection or reselection method provided in an embodiment of the present application;

[0030] FIG9 is a schematic diagram of an optional structure of a terminal device provided in an embodiment of the present application;

[0031] FIG10 is a schematic diagram of an optional structure of a network device provided in an embodiment of the present application;

[0032] FIG11 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0033] FIG12 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0034] FIG13 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] Communication system scenarios include terrestrial networks (TNs) and NTNs. NTNs typically use satellite communications to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN, and other NTN systems may be added in the future.

[0037] Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. As shown in Figure 1, communication system 100 may include terminal device 110 and network device 120. Network device 120 may communicate with terminal device 110 via an air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

[0038] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0039] In the communication system 100 shown in Figure 1, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 (eg, UE) located within the coverage area.

[0040] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0041] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0042] For example, the terminal device 110 may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0043] The terminal device 110 can be used for device-to-device (D2D) communication.

[0044] The wireless communication system 100 may further include a core network device 130 for communicating with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that can be implemented by SMF and PGW-C. During the network evolution process, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.

[0045] The functional units in the communication system 100 may also establish connections and implement communication via next generation (NG) network interfaces.

[0046] For example, the terminal device establishes an air interface connection with the access network device through the Uu interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can exchange user plane data with the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0047] Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0048] It should be noted that Figure 1 is merely an example of a system applicable to this application. Of course, the methods described in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an association relationship. It should also be understood that the "correspondence" mentioned in the embodiments of this application can mean that there is a direct or indirect correspondence between two objects, or that there is an association relationship between the two objects, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the “predefined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, predefined can refer to a definition in a protocol. It should also be understood that in the embodiments of the present application, the “protocol” can refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0049] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0050] With the pursuit of speed, delay, high-speed mobility, energy efficiency and the diversity and complexity of services in future life, the 3GPP (3 rdThe 3GPP (3rd Generation Partnership Project) international standards organization has begun developing the fifth generation (5G). Key 5G application scenarios include enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), and massive machine-type communication (mMTC).

[0051] In order to reduce air interface signaling and quickly restore wireless connections and data services in the 5G network environment, a new Radio Resource Control (RRC) state is defined, namely the connection inactive state (RRC_INACTIVE state). This state is different from the idle state (RRC_IDLE state) and the active state (RRC_ACTIVE state).

[0052] RRC_IDLE state: Mobility is based on UE cell selection and reselection, paging is initiated by the Core Network (CN), and the paging area is configured by the CN; there is no UE Access Stratum (AS) context on the base station side; and there is no RRC connection.

[0053] RRC_CONNECTED state: An RRC connection exists, and a UE AS context exists between the base station and the UE. The network knows the UE's location at the cell level. Mobility is controlled by the network. Unicast data can be transmitted between the UE and the base station.

[0054] RRC_INACTIVE state: Mobility is based on UE cell selection and reselection, there is a connection between the core network and the access network (CN-NR), the UE AS context exists on a base station, paging is triggered by the Radio Access Network (RAN), the RAN-based paging area is managed by the RAN, and the network side knows the UE location based on the RAN paging area level.

[0055] For UEs in RRC_IDLE and RRC_INACTIVE states, the prerequisite for being able to reside in a cell is that the signal quality of the cell (measurement results of Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ)) meets the cell selection S criterion. After selecting a suitable cell, the UE will continue to evaluate the cell reselection.

[0056] S criteria:

[0057] Srxlev>0 and Squal>0 Srxlev=Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-P compensation -Q offsettemp Squal=Q qualmeas -(Q qualmin +Q qualminoffset )-Q offsettemp

[0058] The meaning of each parameter in the S criterion is shown in Table 1.

[0059] Table 1. Meaning of parameters in S criterion

[0060] Among them, Q rxlevmeas and Q qualmeas Cell received power RSRP and signal quality RSRQ measured for UE:

[0061] Q rxlevmin and Q qualmin The minimum received power RSRP and signal quality RSRQ required by the network side;

[0062] Q rxlevminoffset and Q qualminoffset An offset to prevent ping-pong between two PLMNs due to radio environment fluctuations. This offset only needs to be considered when camping on a suitable cell of the visited PLMN and periodically searching for a higher priority PLMN.

[0063] P compensation This is power compensation, for example, when the maximum transmit power allowed by the network side is greater than the maximum uplink transmit power determined by the UE's own capabilities, power compensation is caused by low UE power.

[0064] Q offsettemp It is only used in special scenarios and is not applicable under normal circumstances, such as the "Chiba Problem" scenario.

[0065] Cell reselection refers to the process by which a UE, in idle mode, monitors the signal quality of neighboring cells and the current cell to select the best cell providing service. During the neighboring cell measurement process, if the signal quality and level of a neighboring cell meet the S criterion and certain reselection decision criteria (R criteria), the UE will abandon the current cell and camp on that neighboring cell. If the signal quality and level of a neighboring cell also meet the S criterion and certain reselection decision criteria (R criteria), the terminal will camp on that cell.

[0066] After the UE successfully camps on the cell, it will continue to measure the current cell. The RRC layer calculates Srxlev based on the RSRP measurement results and compares it with the intra-frequency measurement start threshold (Sintrasearch) and the inter-frequency / inter-system measurement start threshold (Snonintrasearch) as the decision condition for whether to start neighbor cell measurement.

[0067] Regarding measurement configuration, for intra-frequency and inter-frequency, SSB Measurement Timing Configuration (SMTC) is configured for each frequency point to assist UE measurement and achieve the purpose of UE power saving.

[0068] The process of obtaining cell signal quality:

[0069] – The system broadcasts the parameters N and threshold for each frequency to select the best beam.

[0070] – Linear average of the signal quality of the best (top N) beams that meet the threshold;

[0071] – If the per-frequency parameter N and threshold are not broadcast, the signal quality of the best beam in the cell is the cell signal quality.

[0072] Target cell selection (R criterion)

[0073] The candidate cells are controlled by rangeToBestCell, that is, among all candidate cells whose signal quality difference with the best cell is within the range of rangeToBestCell, the cell with the most beams meeting the threshold is selected as the target cell.

[0074] R criteria:

[0075] Neighboring cell Rn>current serving cell Rs, where Rs=Q meas，s +Q hyst -Qoffsettemp Rn=Q meas，n -Q offset -Q offsettemp

[0076] The meaning of each parameter in the R criterion formula is shown in Table 2.

[0077] Table 2. Meaning of parameters in the formula of R criterion

[0078] Frequency Priority: To achieve load balancing across frequencies, the network can prioritize different frequencies. UEs are preferentially assigned to higher-priority frequencies. Frequency priority can be obtained from system broadcasts, dedicated signaling (RRC Release), or inherited from other RATs.

[0079] All parameters related to UE measurement behavior constraints in the IDLE state are derived from system broadcast messages. The following assumes that all relevant parameters are configured. If not, the relevant constraints do not exist.

[0080] For the start of the same-frequency measurement, when the serving cell Srxlev> the same-frequency measurement RSRP gate (S IntraSearchP ) and the serving cell Squal> the same frequency measurement RSRQ threshold (S IntraSearchQ ), the same-frequency neighboring cell measurement is not started, otherwise the same-frequency neighboring cell measurement is started.

[0081] For inter-frequency measurements with the same priority or lower priority, when the serving cell Srxlev>inter-frequency measurement RSRP threshold (S nonIntraSearchP ) and the serving cell Squal>inter-frequency measurement RSRQ threshold (S nonIntraSearchQ ), the inter-frequency measurement with the same priority or lower priority will not be started, otherwise it will be started.

[0082] For high-priority inter-frequency measurements, the measurement is always started.

[0083] The cell reselection behavior is based on the measurement results of neighboring cells.

[0084] For cell reselection of same-frequency cells and inter-frequency cells of the same priority, the R criteria (sorted by RSRP) must be met, the signal quality of the new cell is better than that of the current cell and lasts for a specified period of time, and the UE stays in the original cell for no less than 1 second.

[0085] For reselection of a high-priority cell, the signal quality of the high-priority cell must be higher than a certain threshold and last for a specified period of time, and the UE must stay in the original cell for no less than 1 second.

[0086] For reselection of a low-priority cell, there must be no high-priority cell, the cell with the same priority must meet the requirements, the signal quality of the original cell must be below a certain threshold, the signal quality of the low-priority cell must be above a certain threshold and last for a certain period of time, and the UE must stay in the original cell for no less than 1 second.

[0087] Related technologies introduce a lower-power wake-up signal, known as a low-power wake-up signal (LP-WUS), or ultra-low-power WUS. The terminal uses a lower-power receiver, eliminating the main receiver. Upon receiving the LP-WUS, the terminal activates the main receiver to monitor downlink signals, thus saving energy.

[0088] In addition, there is a view that LP-WUS can be used in the RRC CONNECTED state in addition to being used in the RRC IDLE / RRC INACTIVE state.

[0089] The operating principle of LP-WUS is shown in Figures 2 and 3. UE 200 includes a main receiver 201 and a low-power wake-up receiver 202. The UE receives a wake-up signal indicating whether to turn off or on based on the LP wake-up receiver 202. As shown in Figure 2, if the LP wake-up receiver 202 receives a wake-up signal indicating off, it triggers the main receiver 201 to turn off or enter a deep sleep state. As shown in Figure 3, if the LP wake-up receiver 202 receives a wake-up signal indicating on, the LP wake-up receiver 202 triggers the main receiver 201 to turn on.

[0090] With the introduction of low-power receivers, from the terminal's perspective, when camping on a cell supporting LP-WUS, the primary receiver can be turned off, achieving greater power savings compared to camping on a standard cell. Currently, 3GPP has assessed that LP-WUS signal coverage may not reach the entire cell. This means that when a UE is in a serving cell with poor coverage, it will not be able to receive the LP-WUS signal and must turn on the primary receiver to monitor for paging messages. The existing cell selection / reselection process does not take LP-WUS coverage into account. Therefore, the UE is likely to select a cell with poor LP-WUS coverage, thus preventing the terminal from achieving the power savings achieved by using LP-WUS signals.

[0091] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0092] This embodiment of the present application provides a cell selection or reselection method, as shown in FIG4 , including:

[0093] S401. A terminal device receives a first parameter configured by a network device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power wake-up signal LP-WUS.

[0094] An embodiment of the present application provides a cell selection or reselection method, as shown in FIG5 , including:

[0095] S501. A network device configures a first parameter to a terminal device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power consumption wake-up signal LP-WUS.

[0096] In the cell selection or reselection method shown in Figure 4 or Figure 5, the network device configures a first parameter to the terminal device, the first parameter is a parameter for LP-WUS, and the first parameter is used by the terminal device to perform cell selection or cell reselection. Cell selection is understood as the terminal device performing a cell search for residing in any cell, and selecting a cell to reside based on the search results of the cell search, wherein the cell to reside selected based on the first parameter is referred to as the first target cell for cell selection. Cell reselection is understood as the terminal device residing in a cell and being in an idle (RRC_IDLE) state or a deactivated (RRC_INACTIVE) state, in order to obtain better service quality, selecting a cell with the best service quality from a plurality of cells including the current serving cell and the neighboring cells of the current serving cell, wherein the cell with the best service quality selected based on the first parameter for cell reselection is referred to as the first target cell for cell reselection.

[0097] The terminal device in the embodiments of the present application is a terminal device that supports LP-WUS and includes a main receiver and a low-power wake-up receiver. For a terminal device that supports LP-WUS, it can receive a wake-up signal indicating shutdown and, based on the wake-up signal indicating shutdown, enable or trigger the main receiver to shut down or enter a deep sleep state, thereby achieving power conservation.

[0098] The terminal device performs cell selection or cell reselection based on the first parameter to determine a first target cell. If the first target cell is a cell that supports LP-WUS, the terminal device will definitely be able to receive LP-WUS after accessing the first target cell. When downlink data transmission is required, the network device wakes up the main receiver of the terminal device through LP-WUS to monitor downlink data and / or paging messages through the main receiver. When downlink data and / or paging message transmission is not required, the network device triggers the terminal device to trigger the main receiver to shut down or enter a deep sleep state through LP-WUS, thereby achieving a power saving effect.

[0099] In the cell selection or reselection method provided in the embodiment of the present application, a network device configures a first parameter for LP-WUS to a terminal device, and the terminal device can perform cell selection or reselection based on the configured first parameter, obtain a first target cell considering LP-WUS, and ensure that the cell where the terminal device resides uses LP-WUS, thereby reducing the power consumption of the terminal device and achieving the purpose of saving power and energy.

[0100] In some embodiments, the first target cell meets the LP-WUS coverage condition, or meets the LP-WUS received signal quality requirement and / or received signal strength requirement.

[0101] The first target cell meets the LP-WUS coverage conditions, or meets the LP-WUS reception signal quality requirements and / or reception signal strength requirements. It can be understood that when the terminal device accesses the first target cell, the quality of the signal received at the current location is greater than the set reception signal quality or the strength of the received signal is greater than the set reception signal strength. The set reception signal quality is the minimum reception signal quality when the terminal device receives LP-WUS, and the set reception signal strength is the minimum reception signal strength when the terminal device receives LP-WUS.

[0102] In some embodiments, in FIG. 4 , S401 of the terminal device receiving a first parameter configured by the network device includes:

[0103] The terminal device receives the first parameter configured by the network device through a system message sent by the network device.

[0104] In some embodiments, in S501 in FIG. 5 , the network device configures the first parameter to the terminal device, including:

[0105] The network device configures the first parameter to the terminal device through a system message.

[0106] In an embodiment of the present application, the network device configures the first parameter to the terminal device through one or more system messages.

[0107] In an embodiment of the present application, the first parameter configured by the network device to the terminal device may include the first parameter of the serving cell, the first parameter of the same-frequency neighboring cell, and the first parameter of the different-frequency neighboring cell.

[0108] The first parameter of the serving cell is used by the terminal device for cell selection, or for the terminal device to determine whether to start same-frequency measurement or start different-frequency measurement of the same priority or lower priority.

[0109] The first parameter of the same-frequency neighboring cell is used to determine whether the neighboring cell with the same frequency band as the serving cell can be determined as the first target cell during the cell reselection process of the terminal device.

[0110] The first parameter of the different-frequency neighboring cell is used to determine whether a neighboring cell with a frequency band different from that of the serving cell can be determined as the first target cell during the cell reselection process of the terminal device.

[0111] Optionally, the system message includes one or more of the following: System Information Block (SIB) 1, SIB2, and SIB4. The first parameter may be carried in one or more of SIB1, SIB2, and SIB4.

[0112] In the embodiment of the present application, the system message transmitting the first parameter may be other types of system messages in addition to SIB1, SIB2, and SIB4.

[0113] In some embodiments, the first parameter of the serving cell is configured by SIB1.

[0114] The parameters provided by the SIB1 sent by the network device to the terminal device include the first parameter of the serving cell. The terminal device obtains the first parameter of the serving cell by parsing the SIB1.

[0115] In some embodiments, the first parameter of the intra-frequency neighbor cell is configured by SIB2.

[0116] The parameters provided by the SIB2 sent by the network device to the terminal device include the first parameters of the same-frequency neighboring cell. The terminal device obtains the first parameters of the same-frequency neighboring cell by parsing the SIB2.

[0117] In some embodiments, the first parameter of the inter-frequency neighbor cell is configured by SIB4.

[0118] The parameters provided by the SIB4 sent by the network device to the terminal device include the first parameters of the inter-frequency neighboring cell. The terminal device obtains the first parameters of the inter-frequency neighboring cell by parsing the SIB4.

[0119] In some embodiments, the first parameter is used to indicate one or both of the following:

[0120] The RSRP threshold for the reference signal received power used for LP-WUS reception and the RSRQ threshold for the reference signal received quality used for LP-WUS reception are provided.

[0121] The RSRP threshold for LP-WUS reception can be understood as the lowest or minimum RSRP for LP-WUS reception, which can be identified as Q RxLevMinLP-WUS or Q RxLevMinlpwus.

[0122] The RSRQ threshold for LP-WUS reception can be understood as the lowest or minimum RSRQ for LP-WUS reception, which can be identified as Q QualMinLP-WUS or Q QualMinlpwus .

[0123] For convenience of description below, the RSRP threshold for LP-WUS reception is described as a first RSRP threshold, and the RSRQ threshold for LP-WUS reception is described as a first RSRQ threshold.

[0124] In an embodiment of the present application, the first parameter of the serving cell is used to indicate the first RSRP threshold and / or the first RSRQ threshold of the serving cell, the first parameter of the same-frequency neighboring cell is used to indicate the first RSRP threshold and / or the first RSRQ threshold of the same-frequency neighboring cell, and the first parameter of the different-frequency neighboring cell is used to indicate the first RSRP threshold and / or the first RSRQ threshold of the different-frequency neighboring cell.

[0125] In some embodiments, the first parameter includes one or both of the following: an RSRP threshold for LP-WUS reception and an RSRQ threshold for LP-WUS reception.

[0126] At this time, the first parameter includes: the first RSRP threshold and / or the first RSRQ threshold itself, that is, the absolute value of the first RSRP threshold and / or the first RSRQ threshold.

[0127] If the first parameter indicates a first RSRP threshold, the first parameter may include first information indicating the first RSRP threshold, and the value of the first information is the value of the first RSRP threshold. The first information may be identified as q-RxLevMinLP-WUS.

[0128] If the first parameter indicates a first RSRQ threshold, the first parameter may include second information indicating the first RSRQ threshold, and the value of the second information is the value of the first RSRQ threshold. The second information may be identified as q-QualMinLP-WUS.

[0129] In some embodiments, the first parameter includes one or both of the following:

[0130] an RSRP threshold offset between an RSRP threshold for receiving a first signal and an RSRP threshold for receiving an LP-WUS signal, the first signal being a non-LP-WUS signal;

[0131] An RSRQ threshold offset between an RSRQ threshold for first signal reception and an RSRQ threshold for LP-WUS reception.

[0132] The first signal is a downlink signal other than LP-WUS, such as a synchronization signal block (SSB) signal.

[0133] The RSRP threshold for receiving the first signal can be understood as the minimum or lowest RSRP for receiving the first signal, which can be identified as Q RxLevlMin .

[0134] The RSRQ threshold for receiving the first signal can be understood as the minimum or lowest RSRQ for receiving the first signal, which can be marked as Q QualMin .

[0135] For convenience of description, the RSRP threshold for receiving the first signal is described as a second RSRP threshold, and the RSRQ threshold for receiving the first signal is described as a second RSRQ threshold.

[0136] Here, the first parameter does not include: the first RSRP threshold and / or the first RSRQ threshold itself, but includes an RSRP threshold offset of the first RSRP threshold relative to the second RSRP threshold, and / or, an RSRQ threshold offset of the first RSRQ threshold relative to the second RSRQ threshold, that is, a relative value of the first RSRP threshold relative to the second RSRP threshold, and / or, a relative value of the first RSRQ threshold relative to the second RSRQ threshold.

[0137] If the first parameter includes: an RSRP threshold offset, the terminal device may determine the first RSRP threshold based on the second RSRP threshold and the RSRP threshold offset included in the first parameter.

[0138] If the first parameter includes: an RSRQ threshold offset, the terminal device may determine the first RSRQ threshold based on the second RSRQ threshold and the RSRQ threshold offset included in the first parameter.

[0139] Based on FIG4 , the cell selection or reselection method provided in the embodiment of the present application, as shown in FIG6 , further includes:

[0140] S402. The terminal device performs cell selection or cell reselection based on the first parameter to determine the first target cell.

[0141] After receiving the first parameter configured by the network device, the terminal device performs cell selection or cell reselection based on the first parameter and determines the first target cell if the conditions for performing cell selection or cell reselection are met.

[0142] After the terminal device determines the first target cell, it accesses the first target cell and uses the selected first target cell as the service cell.

[0143] In some embodiments, the terminal device performing cell selection based on the first parameter and determining the first target cell in S402 includes:

[0144] The terminal device determines a cell that meets a first criterion among the searched cells as the first target cell, where the first criterion is an S criterion based on the first parameter of the serving cell.

[0145] It can be understood that the first target cell is a cell that meets a first criterion among the cells searched by the terminal device, and the first criterion is an S criterion based on the first parameter of the serving cell.

[0146] During the cell selection process, the terminal device searches for cells and determines whether the searched cell meets the first criterion. If the cell meets the first criterion, the cell is used as the first target cell. If the cell does not meet the first criterion, the cell search continues and it is determined whether the new cell searched meets the first criterion.

[0147] In the embodiment of the present application, the first criterion may be an S criterion determined based on a first RSRP threshold and / or a first RSRQ threshold of a serving cell indicated by a first parameter of the serving cell.

[0148] In one example, the first criterion can be expressed as formula (1):

[0149] Srxlevlpwus>0 Srxlevlpwus=Q rxlevmeas -(Q rxlevminlpwus +Q rxlevminoffset )-P compensation -Q offsettemp Formula (1);

[0150] Among them, Srxlevlpwus is the cell selection reception level value applied to LP-WUS, Q rxlevmeas is the RSRP measurement value of the searched cell, Q rxlevminoffset Q rxlevminlpwus The offset, P compensation is the power compensation, Q offsettemp Temporary offset value.

[0151] In one example, the first criterion can be expressed as formula (2):

[0152] Squallpwus>0 Squallpwus=Q qualmeas -(Q qualminlpwus +Q qualminoffset )-Q offsettemp Formula (2);

[0153] Squallpwus is the cell selection quality value applied to LP-WUS, Q qualmeas is the RSRQ measurement value of the searched cell, Q qualminoffset Q qualminlpwus The offset of .

[0154] In one example, the first criterion can be expressed as formula (3):

[0155] Srxlevlpwus>0 and Squallpwus>0 Srxlevlpwus=Q rxlevmeas -(Q rxlevminlpwus +Q rxlevminoffset )-P compensation -Q offsettemp Squallpwus=Q qualmeas -(Q qualminlpwus +Q qualminoffset )-Q offsettemp Formula (3).

[0156] For Q in formula (1) and formula (3), rxlevminlpwus , is the first RSRP threshold of the serving cell indicated by the first parameter of the serving cell. For Q in formula (2) and formula (3), qualminlpwus , is the first RSRQ threshold of the serving cell indicated by the first parameter of the serving cell.

[0157] In some embodiments, the terminal device performing cell reselection based on the first parameter in S402 to determine the first target cell includes:

[0158] The terminal device determines the first target cell from one or more neighboring cells that meet a second criterion, where the second criterion is an S criterion based on the first parameter of the neighboring cells.

[0159] It can be understood that the first target cell is determined from one or more neighboring cells that meet a second criterion, and the second criterion is an S criterion based on the first parameter of the neighboring cells.

[0160] During the cell reselection process, the terminal device measures one or more neighboring cells, stays in the current serving cell for more than 1 second, and selects a neighboring cell that meets the second criterion and the R criterion from multiple neighboring cells as the second target cell.

[0161] In the embodiment of the present application, the second criterion may be determined based on multiple parameter values ​​including a first RSRP threshold and / or RSRQ threshold indicated by the first parameter of the neighboring cell.

[0162] In an example, the second criterion may be an S criterion determined based on a first RSRP threshold and / or a first RSRQ threshold of an intra-frequency neighboring cell or an inter-frequency neighboring cell indicated by the first parameter.

[0163] For intra-frequency neighboring cells, the second criterion may be an S criterion determined based on the first RSRP threshold and / or the first RSRQ threshold of the intra-frequency neighboring cells indicated by the first parameter. For inter-frequency neighboring cells, the second criterion may be an S criterion determined based on the first RSRP threshold and / or the first RSRQ threshold of the inter-frequency neighboring cells indicated by the first parameter.

[0164] The first neighboring cell is any neighboring cell among one or more neighboring cells of the terminal device. For a neighboring cell among the one or more neighboring cells of the terminal device, the neighboring cell may be a same-frequency neighboring cell or a different-frequency neighboring cell. Specifically, when the neighboring cell and the serving cell are cells in the same frequency band, the neighboring cell is a same-frequency neighboring cell; when the neighboring cell and the serving cell are cells in different frequency bands, the neighboring cell is a different-frequency neighboring cell.

[0165] For a same-frequency neighboring cell, the first RSRP threshold or the first RSRQ threshold of the same-frequency neighboring cell is indicated by a first parameter of the same-frequency neighboring cell.

[0166] The second criterion can be expressed as formula (1), formula (2) or formula (3). For the same frequency neighboring cell, for Q in formula (1) and formula (3), rxlevminlpwus , is the first RSRP threshold of the same-frequency neighboring cell indicated by the first parameter of the same-frequency neighboring cell. qualminlpwus , is the first RSRQ threshold of the same-frequency neighboring cell indicated by the first parameter of the same-frequency neighboring cell.

[0167] For an inter-frequency neighboring cell, the first RSRP threshold or the first RSRQ threshold of the inter-frequency neighboring cell is indicated by a first parameter of the inter-frequency neighboring cell.

[0168] The second criterion can be expressed as formula (1), formula (2) or formula (3). For heterofrequency neighboring cells, for Q in formula (1) and formula (3), rxlevminlpwus , is the first RSRP threshold of the inter-frequency neighboring cell indicated by the first parameter of the inter-frequency neighboring cell. For Q in formula (2) and formula (3), qualminlpwus , is the first RSRQ threshold of the inter-frequency neighboring cell indicated by the first parameter of the inter-frequency neighboring cell.

[0169] In some embodiments, for a first neighboring cell among the one or more neighboring cells, the second criterion used by the first neighboring cell is determined based on the first parameter of the neighboring cell and cell offset information of the first neighboring cell.

[0170] In an embodiment of the present application, cell specific offset information is configured for a neighboring cell. The cell specific offset information indicates a cell offset of a corresponding neighboring cell. For a neighboring cell, a terminal device determines a second criterion based on a first parameter of the neighboring cell and a cell offset indicated by the neighboring cell specific offset information.

[0171] In some embodiments, the cell offset information is used to indicate one or both of the following:

[0172] RSRP offset and RSRQ offset.

[0173] The cell offset information of a neighboring cell may include: first offset information and / or second offset information, where the first offset information indicates an RSRP offset, and the second offset information indicates an RSRQ offset.

[0174] The RSRP offset and RSRQ offset indicated by the cell offset information are offsets applied to neighboring cells of the LP-WUS.

[0175] At this time, for a neighboring cell, the second criterion is determined based on the following amount of information: the first RSRP threshold and / or RSRQ threshold indicated by the first parameter of the neighboring cell, and the RSRP offset (Qrxlevminoffsetcelllpwus) and / or RSRQ offset (Qqualminoffsetcelllpwus) indicated by the offset information of the neighboring cell.

[0176] For a neighboring cell, the second criterion can be expressed as formula (4), formula (5) or formula (6).

[0177] Srxlevlpwus>0 Srxlevlpwus=Q rxlevmeas -(Q rxlevminlpwus +Qrxlevminoffsetcelllpwus+Q rxlevminoffset )-P compensation -Q offsettemp Formula (4);

[0178] Squallpwus>0 Squallpwus=Q qualmeas -(Q qualminlpwus +Qqualminoffsetcelllpwus+Q qualminoffset )-Q offsettemp Formula (5);

[0179] Srxlevlpwus>0 and Squallpwus>0 Srxlevlpwus=Q rxlevmeas -(Q rxlevminlpwus+Qrxlevminoffsetcelllpwus+Q rxlevminoffset )-P compensation -Q offsettemp Squallpwus=Q qualmeas -(Q qualminlpwus +Qqualminoffsetcelllpwus+Q qualminoffset )-Q offsettemp Formula (6).

[0180] It can be understood that, relative to Srxlevlpwus in formula (1) or (3), the amount of information in formula (4) or (6) is increased by Qrxlevminoffsetcelllpwus. Relative to Squallpwus in formula (2) or (3), the amount of information in formula (5) or (6) is increased by Qqualminoffsetcelllpwus.

[0181] In some embodiments, based on FIG6 , as shown in FIG7 , the terminal device further implements the following processing:

[0182] S403. The terminal device receives the cell offset information of the neighboring cell for the terminal device configured by the network device.

[0183] In some embodiments, as shown in FIG8 , the network device further implements the following processing:

[0184] S502. The network device configures cell offset information of a neighboring cell of the terminal device to the terminal device.

[0185] It should be noted that in Figure 7, the execution of S403 precedes the execution of S402, and in Figure 8, the execution of S502 precedes the execution of S501. In actual applications, the execution order of S403 and S402 is not limited, the two can be executed simultaneously, or S402 can be executed before S403. The execution order of S502 and S501 is not limited, the two can be executed simultaneously, or S501 can be executed before S502.

[0186] For different neighboring cells, the network device configures different cell offset information corresponding to the neighboring cells to the terminal device.

[0187] In some embodiments, the network device configures cell offset information to the terminal device via a system message.

[0188] In the embodiment of the present application, the cell offset information for different neighboring cells may be independent.

[0189] In the embodiment of the present application, the cell offset information configured by the network device includes the cell offset information of the same-frequency neighboring cell and / or the cell configuration information of the different-frequency neighboring cell.

[0190] In some embodiments, the cell offset information of the same-frequency neighboring cell is configured in SIB3.

[0191] In an embodiment of the present application, if a neighboring cell is a co-frequency neighboring cell, the terminal device determines whether the cell offset information of the neighboring cell is configured in SIB3. If the cell offset information of the neighboring cell is not configured in SIB3, the first criterion is determined based on the first parameter of the co-frequency neighboring cell. If the cell offset information of the neighboring cell is configured in SIB3, the first criterion is determined based on the first parameter of the co-frequency neighboring cell and the cell offset information.

[0192] In some embodiments, the cell offset information of the inter-frequency neighbor cell is configured in SIB4.

[0193] If a neighboring cell is an inter-frequency neighboring cell, the terminal device determines whether the cell offset information of the neighboring cell is configured in SIB4. If the cell offset information of the neighboring cell is not configured in SIB4, the first criterion is determined based on the first parameter of the inter-frequency neighboring cell. If the cell offset information of the neighboring cell is configured in SIB4, the first criterion is determined based on the first parameter of the inter-frequency neighboring cell and the cell offset information.

[0194] It is understandable that the cell offset information can be configured through SIB3 and SIB4 as well as other types of system messages.

[0195] In some embodiments, the first parameter of the serving cell is used to determine whether to start intra-frequency measurement and / or inter-frequency measurement of the same priority or lower priority.

[0196] The terminal device determines the Srxlevlpwus and / or Squallpwus of the serving cell based on the first parameter, and determines whether to perform same-frequency measurement and / or different-frequency measurement of the same priority or low priority based on Srxlevlpwus.

[0197] Among them, Srxlevlpwus can be expressed as formula (7), and Squallpwus can be expressed as formula (8): Srxlevlpwus=Q rxlevmeas -(Q rxlevminlpwus +Q rxlevminoffset )-P compensation -Q offsettemp Formula (7); Squallpwus=Q qualmeas -(Q qualminlpwus +Q qualminoffset )-Q offsettemp Formula (8);

[0198] Q in formula (7) rxlevminlpwus is the first RSRP threshold of the serving cell. Q in formula (8) qualminlpwus It is the first RSRQ threshold of the serving cell.

[0199] In one example, for intra-frequency measurement, if Srxlevlpwus is less than or equal to the intra-frequency cell measurement RSRP threshold (S IntraSearchP ), and / or Squallpwus is less than or equal to the RSRQ threshold (S IntraSearchQ ), then start the same-frequency measurement; if Srxlevlpwus is greater than the RSRP threshold (S IntraSearchP ), and Squallpwus is greater than the RSRQ threshold S of the same frequency cell measurement IntraSearchQ , the same-frequency measurement will not be started.

[0200] In one example, for inter-frequency measurements of the same priority or lower priority, if Srxlevlpwus is less than or equal to the inter-frequency cell measurement RSRP threshold (S nonIntraSearchP ), and Squallpwus is less than or equal to the inter-frequency cell measurement RSRQ threshold (S nonIntraSearchQ ), then start the inter-frequency measurement of the same priority or lower priority; if Srxlevlpwus is greater than the inter-frequency cell measurement RSRP threshold (S nonIntraSearchP ), and Squallpwus is greater than the inter-frequency cell measurement RSRQ threshold (S nonIntraSearchQ ), the inter-frequency measurement with the same priority or lower priority will not be started.

[0201] It is understandable that when the current serving cell is a cell supporting LP-WUS, whether to start the same-frequency measurement and / or the same-priority or low-priority different-frequency measurement is determined based on the first parameter of the serving cell.

[0202] In some embodiments, the terminal device further implements the following processing:

[0203] If the terminal device does not determine the first target cell based on the first parameter, the terminal device performs cell selection or cell reselection based on the second parameter to determine a second target cell, and the second target cell is not related to LP-WUS.

[0204] In some embodiments, the terminal device further implements the following processing:

[0205] If the terminal device is not configured with the first parameter, the terminal device performs cell selection or cell reselection based on the second parameter to determine a second target cell, where the second target cell is not related to the LP-WUS.

[0206] In some embodiments, the network device further implements the following processing: the network device configures a second parameter to the terminal device, where the second parameter is used to determine a second target cell, and the second target cell is not related to the LP-WUS.

[0207] The condition that the second parameter is used to determine the second target cell includes:

[0208] Condition 1: the terminal device is configured with the first parameter, and the terminal device has not determined the first target cell based on the first parameter; and / or,

[0209] Condition 2: The terminal device is not configured with the first parameter.

[0210] If the condition for determining the second target cell using the second parameter includes condition one, the terminal device performs cell selection or cell reselection based on the first parameter, and if the first target cell is not determined based on the first parameter, the second target cell is determined based on the second parameter.

[0211] If the condition for the second parameter to be used to determine the second target cell includes condition two, and the terminal device is not configured with the first parameter, the second target cell is determined based on the second parameter.

[0212] In one example, when a terminal device performs cell selection or cell reselection, it determines whether a first parameter is configured. If the first parameter is not configured, the second target cell is determined based on the second parameter. If the first parameter is configured, the first target cell is determined based on the first parameter. If the first target cell is not determined based on the first parameter, the second target cell is determined based on the second parameter.

[0213] In some embodiments, the terminal device further implements the following processing:

[0214] The terminal device receives the second parameter configured by the network device through a system message sent by the network device.

[0215] In some embodiments, the network device also performs the following processing:

[0216] The network device configures the second parameter to the terminal device through a system message.

[0217] In an embodiment of the present application, the second parameters configured for the terminal device may include one or more of the following: a second parameter of the serving cell, a second parameter of the same-frequency neighboring cell, and a second parameter of the different-frequency neighboring cell.

[0218] The second parameter of the serving cell is used by the terminal device for cell selection, or for the terminal device to determine whether to start same-frequency measurement or start different-frequency measurement of the same priority or lower priority.

[0219] The first parameter of the same-frequency neighboring cell is used to determine whether a neighboring cell with the same frequency band as the serving cell can be determined as the second target cell during the cell reselection process of the terminal device.

[0220] The first parameter of the different-frequency neighboring cell is used to determine whether a neighboring cell with a frequency band different from that of the serving cell can be determined as the second target cell during the cell reselection process of the terminal device.

[0221] Optionally, the system message transmitting the second parameter may include one or more of the following: SIB1, SIB2, SIB4. The second parameter may carry one or more of SIB1, SIB2, and SIB4.

[0222] In some embodiments, the second parameter of the serving cell is configured by SIB1.

[0223] In some embodiments, the second parameter of the intra-frequency neighbor cell is configured by SIB2.

[0224] In some embodiments, the second parameter of the inter-frequency neighbor cell is configured by SIB4.

[0225] In some embodiments, the second parameter is used to indicate one or both of the following:

[0226] An RSRP threshold for receiving a first signal and an RSRQ threshold for receiving the first signal, wherein the first signal is non-LP-WUS.

[0227] The RSRP threshold for receiving the first signal can be understood as the lowest or minimum RSRP for receiving the first signal, which can be identified as Q RxLevMin .

[0228] The RSRQ threshold for receiving the first signal can be understood as the lowest or minimum RSRPQ for receiving the first signal, which can be identified as Q qualMin .

[0229] For convenience of description, the RSRP threshold for receiving the first signal is described as a second RSRP threshold, and the RSRQ threshold for receiving the first signal is described as a second RSRQ threshold.

[0230] In an embodiment of the present application, the second parameter of the serving cell is used to indicate the second RSRP threshold and / or the second RSRQ threshold of the serving cell, the second parameter of the same-frequency neighboring cell is used to indicate the second RSRP threshold and / or the second RSRQ threshold of the same-frequency neighboring cell, and the second parameter of the different-frequency neighboring cell is used to indicate the second RSRP threshold and / or the second RSRQ threshold of the different-frequency neighboring cell.

[0231] In some embodiments, the second parameter includes third information and / or fourth information, the third information is used to indicate the second RSRP threshold, and the fourth information is used to indicate the second RSRQ threshold. The third information can be identified as q-RxLevMin. The fourth information can be identified as q-QualMin.

[0232] It is understandable that when the current service cell does not support LP-WUS, or the current service cell supports LP-WUS but the terminal device is not configured with the first parameters of the service cell, the terminal device determines whether to start same-frequency measurement and / or same-priority or lower-priority inter-frequency measurement based on the first parameters of the service cell.

[0233] Below, the cell selection or reselection method provided in the embodiments of the present application is described through multiple embodiments.

[0234] Embodiment 1: Introducing LP-WUS-specific cell selection parameters.

[0235] 1. The UE receives a system message broadcast, which includes information related to the serving cell and neighboring cells, where:

[0236] a. Serving cell related information is configured through SIB1, including:

[0237] i. q-RxLevMinLP-WUS, for use by UEs supporting LP-WUS capability, the value of the q-RxLevMinLP-WUS parameter shall not be less than the q-RxLevMin value broadcast in SIB1; and / or

[0238] ii. q-QualMinLP-WUS: used by UEs that support LP-WUS capability. The value of the q-QualMinLP-WUS parameter shall not be less than the q-QualMin value broadcast in SIB1.

[0239] b. Information related to the same-frequency neighboring cells is configured through SIB2, including:

[0240] i. q-RxLevMinLP-WUS, for use by UEs supporting LP-WUS capability, the value of the q-RxLevMinLP-WUS parameter shall not be less than the q-RxLevMin value broadcast in SIB2; and / or

[0241] ii. q-QualMinLP-WUS: used by UEs that support LP-WUS capability. The value of the q-QualMinLP-WUS parameter shall not be less than the q-QualMin value broadcast in SIB2.

[0242] c. Information related to inter-frequency neighboring cells is configured through SIB4, including:

[0243] i. q-RxLevMinLP-WUS, for use by UEs supporting LP-WUS capability, the value of the q-RxLevMinLP-WUS parameter shall not be less than the q-RxLevMin value broadcast in SIB4; and / or

[0244] ii. q-QualMinLP-WUS: used by UEs supporting LP-WUS capability. The value of the q-QualMinLP-WUS parameter shall not be less than the q-QualMin value broadcast in SIB4.

[0245] 2. UEs supporting LP-WUS capability evaluate the cell selection criteria of the serving cell and neighboring cells based on the serving cell related information and neighboring cell related information in the system message broadcast.

[0246] S criteria:

[0247] Srxlev>0 and Squal>0; Srxlev=Q rxlevmeas -(Q rxlevmin +Q rxlevminoffset )-P compensation -Q offsettemp ; Squal=Q qualmeas -(Q qualmin +Q qualminoffset )-Q offsettemp .

[0248] a. For serving cells:

[0249] i. For UEs supporting LP-WUS capability, if q-RxLevMinLP-WUS is configured in SIB1, Qrxlevmin is obtained from q-RxLevMinLP-WUS in SIB1; otherwise, Qrxlevmin is obtained from q-RxLevMin. If q-QualMinLP-WUS is configured in SIB1, Qqualmin is obtained from q-QualMinLP-WUS in SIB1; otherwise, Qqualmin is obtained from q-QualMin.

[0250] b. For adjacent cells with the same frequency:

[0251] i. For UEs supporting LP-WUS capability, if q-RxLevMinLP-WUS is configured in SIB2, then Q rxlevmin Obtained from q-RxLevMinLP-WUS; otherwise, Q rxlevmin Obtained from q-RxLevMin in SIB2. If q-QualMinLP-WUS is configured in SIB2, Q qualminObtained from q-QualMinLP-WUS in SIB2; otherwise, Q qualmin Obtained from q-QualMin.

[0252] b. For adjacent cells with different frequencies:

[0253] i. For UEs supporting LP-WUS capability, if q-RxLevMinLP-WUS is configured in SIB4, then Q rxlevmin Obtained from q-RxLevMinLP-WUS; otherwise, Q rxlevmin Get from q-RxLevMin in SIB4. If q-QualMinLP-WUS is configured in SIB4, Q qualmin Obtained from q-QualMinLP-WUS in SIB4; otherwise, Q qualmin Obtained from q-QualMin.

[0254] For the q-RxLevMinLP-WUS and q-QualMinLP-WUS parameters broadcast in SIB1 / SIB2 / SIB4, their values ​​can be absolute values, which means replacing the q-RxLevMin and q-QualMin broadcast in SIB1 / SIB2 / SIB4, or relative values, that is, offsets relative to the q-RxLevMin and q-QualMin broadcast in SIB1 / SIB2 / SIB4.

[0255] In the embodiment of the present application, the introduction of LP-WUS-specific cell selection criteria allows LP-WUS-capable UEs to evaluate which cells meet the coverage of LP-WUS signals. Selecting such cells helps the UE operate in LP-WUS mode and save power by turning off the main receiver.

[0256] Embodiment 2: Cell selection process of LP-WUS UE.

[0257] During the cell selection process, UEs supporting LP-WUS capabilities prioritize cells that meet the LP-WUS cell selection criteria. Specifically, during the cell search phase, when the measured cell signal strength and / or signal quality meet the LP-WUS cell selection criteria, the UE selects the current cell as the serving cell and camps on it. If the current cell does not meet the LP-WUS cell selection criteria, the UE continues searching for other cells to find one that does. If all cells do not meet the LP-WUS cell selection criteria, the UE selects a cell to camp on according to traditional cell selection criteria.

[0258] Embodiment 3: Cell reselection process of LP-WUS UE.

[0259] During the cell reselection process, a UE supporting LP-WUS capability shall consider the LP-WUS cell selection criteria and / or the traditional cell selection criteria. Specifically:

[0260] Among the measured neighboring cells,

[0261] 1) If the signal strength and / or signal quality of a neighboring cell meets the LP-WUS cell selection criteria, the UE will determine the target cell for cell reselection from those neighboring cells that meet the LP-WUS cell selection criteria. For example, the terminal first determines the neighboring cells that meet the LP-WUS cell selection criteria, and then sorts these cells according to the cell reselection criteria. According to the existing technology, the cell with the highest ranking, or the cell with the largest number of good quality beams among the n cells with higher rankings, is selected as the target cell.

[0262] 2) Otherwise, the terminal performs a cell reselection process according to the traditional cell selection criteria.

[0263] In an embodiment of the present application, a two-stage cell reselection process is introduced, so that a UE with LP-WUS capability can preferentially reselect to a target cell that supports the UE operating in LP-WUS mode through the evaluation of the LP-WUS cell selection criteria, thereby achieving the purpose of power saving.

[0264] Embodiment 4: For neighboring cells, a separate LP-WUS-related cell specific offset is introduced.

[0265] 1. The UE receives system message broadcasts and obtains cell specific offset information related to the neighboring cell LP-WUS;

[0266] 2. A terminal supporting LP-WUS considers LP-WUS-related cell specific offset information when evaluating whether a neighboring cell meets the S criterion.

[0267] Specifically, each neighboring cell defines a LP-WUS-related cell specific offset, such as QrxlevminoffsetcellLP-WUS and / or QqualminoffsetcellLP-WUS, which is configured through SIB3 for the same-frequency neighboring cell and through SIB4 for the different-frequency neighboring cell. For a terminal that supports LP-WUS, when evaluating whether a neighboring cell meets the LP-WUS cell selection criteria, if QrxlevminoffsetcellLP-WUS is configured for the cell in SIB3 / 4, then the Q obtained in Example 1 rxlevminThe QrxlevminoffsetcellLP-WUS value configured for the cell needs to be superimposed, and the Q obtained in Example 1 qualmin The QqualminoffsetcellLP-WUS value configured for the cell needs to be added.

[0268] In Examples 1 to 3, the terminal cell selection criteria parameters are all at the frequency level, such as same-frequency or different-frequency, without further differentiation at the cell level. In Example 4, the introduction of cell-level LP-WUS cell selection criteria parameters allows the network to more flexibly adapt to factors such as differences in LP-WUS signal transmission power and coverage between neighboring cells, allowing the terminal to more accurately determine whether it is within the LP-WUS effective coverage area of ​​each neighboring cell.

[0269] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0270] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in 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 the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0271] FIG9 is a first schematic diagram of the structure of a terminal device provided in an embodiment of the present application. As shown in FIG9 , the terminal device 900 includes:

[0272] The first communication unit 901 is configured to receive a first parameter configured by a network device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to a low power wake-up signal LP-WUS.

[0273] In some embodiments, the first target cell meets the LP-WUS coverage condition, or meets the LP-WUS received signal quality requirement and / or received signal strength requirement.

[0274] In some embodiments, the first communication unit 901 is further configured to receive the first parameter configured by the network device through a system message sent by the network device.

[0275] In some embodiments, the first parameter of the serving cell is configured by SIB1.

[0276] In some embodiments, the first parameter of the same-frequency neighboring cell is configured by SIB2.

[0277] In some embodiments, the first parameter of the heterofrequency neighbor cell is configured by SIB4.

[0278] In some embodiments, the first parameter is used to indicate one or both of the following:

[0279] The RSRP threshold for the reference signal received power used for LP-WUS reception and the RSRQ threshold for the reference signal received quality used for LP-WUS reception are provided.

[0280] In some embodiments, the first parameter includes one or both of the following:

[0281] RSRP threshold for LP-WUS reception and RSRQ threshold for LP-WUS reception.

[0282] In some embodiments, the first parameter includes one or both of the following:

[0283] an RSRP threshold offset between an RSRP threshold for receiving a first signal and an RSRP threshold for receiving an LP-WUS signal, the first signal being a non-LP-WUS signal;

[0284] An RSRQ threshold offset between an RSRQ threshold for first signal reception and an RSRQ threshold for LP-WUS reception.

[0285] In some embodiments, the terminal device 901 further includes: a first determination unit configured to perform cell selection or cell reselection based on the first parameter to determine the first target cell.

[0286] In some embodiments, the determining unit is further configured to determine a cell among the searched cells that meets a first criterion as the first target cell, where the first criterion is an S criterion based on the first parameter of the serving cell.

[0287] In some embodiments, the determining unit is further configured to determine the first target cell from one or more neighboring cells that meet a second criterion, where the second criterion is an S criterion based on the first parameter of the neighboring cell.

[0288] In some embodiments, for a first neighboring cell among the one or more neighboring cells, the second criterion used by the first neighboring cell is determined based on the first parameter of the neighboring cell and cell offset information of the first neighboring cell.

[0289] In some embodiments, the cell offset information is used to indicate one or both of the following:

[0290] RSRP offset and RSRQ offset.

[0291] In some embodiments, the first communication unit 901 is further configured to receive cell offset information of a neighboring cell for the terminal device configured by the network device.

[0292] In some embodiments, the cell offset information of the same-frequency neighboring cell is configured in SIB2.

[0293] In some embodiments, the cell offset information of the inter-frequency neighbor cell is configured in SIB4.

[0294] In some embodiments, the first parameter of the serving cell is used to determine whether to start intra-frequency measurement and / or inter-frequency measurement of the same priority or lower priority.

[0295] In some embodiments, the terminal device further includes: a second determination unit, configured to perform cell selection or cell reselection based on a second parameter to determine a second target cell if the terminal device fails to determine the first target cell based on the first parameter, and the second target cell is unrelated to the LP-WUS.

[0296] In some embodiments, the terminal device further includes: a second determination unit configured to perform cell selection or cell reselection based on a second parameter if the terminal device is not configured with the first parameter, and determine a second target cell, wherein the second target cell is not related to the LP-WUS.

[0297] In some embodiments, the first communication unit 901 is further configured to receive the second parameter configured by the network device through a system message sent by the network device.

[0298] In some embodiments, the second parameter is used to indicate one or both of the following:

[0299] An RSRP threshold for receiving a first signal and an RSRQ threshold for receiving the first signal, wherein the first signal is non-LP-WUS.

[0300] The first communication unit in the terminal device may be implemented by a transceiver in the terminal device. The first determination unit and the second determination unit in the terminal device may be implemented by a processor in the terminal device.

[0301] FIG10 is a schematic diagram of the structure of a network device according to an embodiment of the present application. As shown in FIG10 , the network device 1000 includes:

[0302] The second communication unit 1001 is configured to configure a first parameter to the terminal device, where the first parameter is used to select or reselect a first target cell, wherein the first target cell is related to the low power wake-up signal LP-WUS.

[0303] In some embodiments, the first target cell meets the LP-WUS coverage condition, or meets the LP-WUS received signal quality requirement and / or received signal strength requirement.

[0304] In some embodiments, the second communication unit is further configured to configure the first parameter to the terminal device through a system message.

[0305] In some embodiments, the first parameter of the serving cell is configured by a system information block SIB1.

[0306] In some embodiments, the first parameter of the same-frequency neighboring cell is configured by SIB2.

[0307] In some embodiments, the first parameter of the heterofrequency neighbor cell is configured by SIB4.

[0308] In some embodiments, the first parameter is used to indicate one or both of the following:

[0309] The RSRP threshold for the reference signal received power used for LP-WUS reception and the RSRQ threshold for the reference signal received quality used for LP-WUS reception are provided.

[0310] In some embodiments, the first parameter includes one or both of the following:

[0311] RSRP threshold for LP-WUS reception and RSRQ threshold for LP-WUS reception.

[0312] In some embodiments, the first parameter includes one or both of the following:

[0313] an RSRP threshold offset between an RSRP threshold for receiving a first signal and an RSRP threshold for receiving an LP-WUS signal, the first signal being a non-LP-WUS signal;

[0314] An RSRQ threshold offset between an RSRQ threshold for first signal reception and an RSRQ threshold for LP-WUS reception.

[0315] In some embodiments, the first target cell is a cell that meets a first criterion among the cells searched by the terminal device, and the first criterion is an S criterion based on the first parameter of the serving cell.

[0316] In some embodiments, the first target cell is determined from one or more neighboring cells that meet a second criterion, where the second criterion is an S criterion based on the first parameter of the neighboring cells.

[0317] In some embodiments, for a first neighboring cell among the one or more neighboring cells, the second criterion used by the first neighboring cell is determined based on the first parameter of the neighboring cell and cell offset information of the first neighboring cell.

[0318] In some embodiments, the cell offset information is used to indicate one or both of the following:

[0319] RSRP offset and RSRQ offset.

[0320] In some embodiments, the second communication unit 1001 is further configured to configure cell offset information of a neighboring cell of the terminal device to the terminal device.

[0321] In some embodiments, the cell offset information of the same-frequency neighboring cell is configured in SIB2.

[0322] In some embodiments, the cell offset information of the inter-frequency neighbor cell is configured in SIB4.

[0323] In some embodiments, the first parameter of the serving cell is used to determine whether to start intra-frequency measurement and / or inter-frequency measurement of the same priority or lower priority.

[0324] In some embodiments, the second communication unit 1001 is further configured to configure a second parameter for the terminal device, where the second parameter is used to determine a second target cell, and the second target cell is not related to the LP-WUS.

[0325] In some embodiments, the condition under which the second parameter is used to determine the second target cell includes:

[0326] The terminal device is configured with the first parameter, and the terminal device does not determine the first target cell based on the first parameter; and / or,

[0327] The terminal device is not configured with the first parameter.

[0328] In some embodiments, the second communication unit 1001 is further configured to configure the second parameter to the terminal device through a system message.

[0329] In some embodiments, the second parameter is used to indicate one or both of the following:

[0330] An RSRP threshold for receiving a first signal and an RSRQ threshold for receiving the first signal, wherein the first signal is non-LP-WUS.

[0331] It is understandable that the network device may further include a third determination unit configured to determine the first parameter.

[0332] The second communication unit in the network device may be implemented by a transceiver in the network device. The third determination unit in the network device may be implemented by a processor in the network device.

[0333] Those skilled in the art should understand that the relevant description of the above-mentioned terminal equipment or network equipment in the embodiments of the present application can be understood by referring to the relevant description of the cell selection or reselection method in the embodiments of the present application.

[0334] Figure 11 is a schematic diagram of a communication device 1100 provided in an embodiment of the present application. The communication device can be a terminal device or a network device. The communication device 1100 shown in Figure 11 includes a processor 1110, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0335] Optionally, as shown in FIG11 , the communication device 1100 may further include a memory 1120. The processor 1110 may call and execute a computer program from the memory 1120 to implement the method in the embodiment of the present application.

[0336] The memory 1120 may be a separate device independent of the processor 1110 , or may be integrated into the processor 1110 .

[0337] Optionally, as shown in FIG11 , the communication device 1100 may further include a transceiver 1130 , and the processor 1110 may control the transceiver 1130 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0338] The transceiver 1130 may include a transmitter and a receiver. The transceiver 1130 may further include an antenna, and the number of antennas may be one or more.

[0339] Optionally, the communication device 1100 may specifically be a network device in an embodiment of the present application, and the communication device 1100 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0340] Optionally, the communication device 1100 may specifically be a mobile terminal / terminal device in an embodiment of the present application, and the communication device 1100 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0341] Figure 12 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1200 shown in Figure 12 includes a processor 1210, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0342] Optionally, as shown in FIG12 , the chip 1200 may further include a memory 1220. The processor 1210 may call and execute a computer program from the memory 1220 to implement the method in the embodiment of the present application.

[0343] The memory 1220 may be a separate device independent of the processor 1210 , or may be integrated into the processor 1210 .

[0344] Optionally, the chip 1200 may further include an input interface 1230. The processor 1210 may control the input interface 1230 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0345] Optionally, the chip 1200 may further include an output interface 1240. The processor 1210 may control the output interface 1240 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0346] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0347] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0348] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0349] FIG13 is a schematic block diagram of a communication system 1300 provided in an embodiment of the present application. As shown in FIG13 , the communication system 1300 includes a terminal device 1310 and a network device 1320 .

[0350] Among them, the terminal device 1310 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1320 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0351] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0352] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as 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 RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0353] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present 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 RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0354] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0355] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0356] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0357] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0358] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0359] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0360] The embodiment of the present application also provides a computer program.

[0361] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0362] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0363] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0364] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0365] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0366] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0367] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0368] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0369] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A cell selection or reselection method, the method comprises: The terminal device receives a first parameter configured by the network device, and the first parameter is used for cell selection or reselection of a first target cell, wherein the first target cell is related to a low-power wake-up signal LP-WUS.

2. The method according to claim 1, wherein, The first target cell meets the condition of LP-WUS coverage, or meets the received signal quality requirement and / or received signal strength requirement of LP-WUS.

3. The method according to claim 1 or 2, wherein, The terminal device receives the first parameter configured by the network device, including: The terminal device receives the first parameter configured by the network device through the system message sent by the network device.

4. The method according to claim 3, wherein, The first parameter of the serving cell is configured by the system information block SIB1.

5. The method according to claim 3, wherein, The first parameter of the co-frequency neighboring cell is configured by SIB2.

6. The method according to claim 3, wherein, The first parameter of the inter-frequency neighboring cell is configured by SIB4.

7. The method according to any one of claims 1 to 6, wherein, The first parameter is used to indicate one or both of the following: The reference signal received power RSRP threshold for LP-WUS reception and the reference signal received quality RSRQ threshold for LP-WUS reception.

8. The method according to claim 7, wherein, The first parameter includes one or both of the following: The RSRP threshold for LP-WUS reception and the RSRQ threshold for LP-WUS reception.

9. The method according to claim 7, wherein, The first parameter includes one or both of the following: The RSRP threshold offset between the RSRP threshold for the first signal reception and the RSRP threshold for LP-WUS reception, and the first signal is a non-LP-WUS signal; The RSRQ threshold offset between the RSRQ threshold for the first signal reception and the RSRQ threshold for LP-WUS reception.

10. The method according to any one of claims 1 to 9, wherein, The method further comprises: The terminal device performs cell selection or cell reselection based on the first parameter to determine the first target cell.

11. The method according to claim 10, wherein, The terminal device performs cell selection based on the first parameter to determine the first target cell, including: The terminal device determines the cell that meets the first criterion among the searched cells as the first target cell, and the first criterion is the S criterion based on the first parameter of the serving cell.

12. The method according to claim 10, wherein, The terminal device performs cell reselection based on the first parameter to determine the first target cell, including: The terminal device determines the first target cell from one or more neighboring cells that meet the second criterion, and the second criterion is the S criterion based on the first parameter of the neighboring cell.

13. The method according to claim 12, wherein, For a first neighbor cell among the one or more neighbor cells, the second criterion used by the first neighbor cell is determined based on the first parameter of the neighbor cell and the cell offset information of the first neighbor cell.

14. The method according to claim 13, wherein, the cell offset information is used to indicate one or both of the following: RSRP offset and RSRQ offset.

15. The method according to claim 13 or 14, wherein, the method further includes: the terminal device receives the cell offset information of the neighbor cells of the terminal device configured by the network device.

16. The method according to claim 15, wherein, the cell offset information of the same-frequency neighbor cells is configured in SIB3.

17. The method according to claim 15, wherein, the cell offset information of the different-frequency neighbor cells is configured in SIB4.

18. The method according to any one of claims 1 to 17, wherein, the first parameter of the serving cell is used to determine whether to initiate same-frequency measurement, and / or, different-frequency measurement of the same priority or low priority.

19. The method according to any one of claims 1 to 18, wherein, the method further includes: if the terminal device does not determine the first target cell based on the first parameter, the terminal device performs cell selection or cell reselection based on a second parameter to determine a second target cell, and the second target cell has nothing to do with LP-WUS.

20. The method according to any one of claims 1 to 19, wherein, the method further includes: if the terminal device is not configured with the first parameter, the terminal device performs cell selection or cell rese lection to determine a second target cell, and the second target cell has nothing to do with LP-WUS.

21. The method according to claim 19 or 20, wherein, the method further includes: the terminal device receives the second parameter configured by the network device through the system message sent by the network device.

22. The method according to any one of claims 19 to 21, wherein, the second parameter is used to indicate one or both of the following: RSRP threshold for first signal reception and RSRQ threshold for first signal reception, and the first signal is non-LP-WUS.

23. A cell selection or reselection method, the method includes: The network device configures a first parameter for the terminal device, and the first parameter is used for the selection or reselection of a first target cell, wherein the first target cell is related to the low-power wake-up signal LP-WUS.

24. The method according to claim 23, wherein, the first target cell meets the condition of LP-WUS coverage, or meets the received signal quality requirement and / or received signal strength requirement of LP-WUS.

25. The method according to claim 23 or 24, wherein, the network device configures the first parameter for the terminal device, including: the network device configures the first parameter for the terminal device through the system message.

26. The method according to claim 25, wherein, The first parameter of the serving cell is configured by System Information Block SIB1.

27. The method according to claim 25, wherein, The first parameter of the co-frequency neighboring cell is configured by SIB2.

28. The method according to claim 25, wherein, The first parameter of the inter-frequency neighboring cell is configured by SIB4.

29. The method according to any one of claims 23 to 28, wherein, The first parameter is used to indicate one or both of the following: The reference signal received power RSRP threshold for LP-WUS reception and the reference signal received quality RSRQ threshold for LP-WUS reception.

30. The method according to claim 29, wherein, The first parameter includes one or both of the following: The RSRP threshold for LP-WUS reception and the RSRQ threshold for LP-WUS reception.

31. The method according to claim 29, wherein, The first parameter includes one or both of the following: The RSRP threshold offset between the RSRP threshold for the first signal reception and the RSRP threshold for LP-WUS reception, the first signal being a non-LP-WUS signal; The RSRQ threshold offset between the RSRQ threshold for the first signal reception and the RSRQ threshold for LP-WUS reception.

32. The method according to any one of claims 23 to 31, wherein, The first target cell is a cell that satisfies the first criterion among the cells searched by the terminal device, and the first criterion is the S criterion based on the first parameter of the serving cell.

33. The method according to any one of claims 23 to 31, wherein, The first target cell is determined from one or more neighboring cells that satisfy the second criterion, and the second criterion is the S criterion based on the first parameter of the neighboring cell.

34. The method according to claim 33, wherein, For the first neighboring cell among the one or more neighboring cells, the second criterion used by the first neighboring cell is determined based on the first parameter of the neighboring cell and the cell offset information of the first neighboring cell.

35. The method according to claim 34, wherein, The cell offset information is used to indicate one or both of the following: RSRP offset and RSRQ offset.

36. The method according to claim 34 or 35, wherein, The method further includes: The network device configures the cell offset information for the neighboring cells of the terminal device for the terminal device.

37. The method according to claim 36, wherein, The cell offset information of the co-frequency neighboring cell is configured in SIB3.

38. The method according to claim 36, wherein, The cell offset information of the inter-frequency neighboring cell is configured in SIB4.

39. The method according to any one of claims 23 to 38, wherein, The first parameter of the serving cell is used to determine whether to initiate co-frequency measurement, and / or, inter-frequency measurement of the same priority or low priority.

40. The method according to any one of claims 23 to 39, wherein, The method further includes: The network device configures a second parameter for the terminal device, where the second parameter is used to determine a second target cell that has nothing to do with LP-WUS.

41. The method according to claim 40, wherein, the conditions for the second parameter to be used to determine the second target cell include: the terminal device is configured with the first parameter, and the terminal device does not determine the first target cell based on the first parameter; and / or, the terminal device is not configured with the first parameter.

42. The method according to claim 40 or 41, wherein, the network device configuring the second parameter for the terminal device includes: the network device configures the second parameter for the terminal device through a system message.

43. The method according to any one of claims 40 to 42, wherein, the second parameter is used to indicate one or both of the following: the RSRP threshold for first signal reception and the RSRQ threshold for first signal reception, where the first signal is non-LP-WUS.

44. A terminal device, comprising: a first communication unit configured to receive a first parameter configured by a network device, where the first parameter is used for the selection or reselection of a first target cell, and wherein the first target cell is related to a low-power wake-up signal LP-WUS.

45. A network device, comprising: a second communication unit configured to configure a first parameter for a terminal device, where the first parameter is used for the selection or reselection of a first target cell, and wherein the first target cell is related to a low-power wake-up signal LP-WUS.

46. A terminal device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 22.

47. A network device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 23 to 43.

48. A chip, comprising: a processor configured to call and run a computer program from a memory, such that a device installed with the chip executes the method according to any one of claims 1 to 22, or executes the method according to any one of claims 23 to 43.

49. A computer-readable storage medium for storing a computer program, where the running of the computer program causes a computer to execute the method according to any one of claims 1 to 22, or execute the method according to any one of claims 23 to 43.

50. A computer program product comprising computer program instructions, where the running of the computer program instructions causes a computer to execute the method according to any one of claims 1 to 22, or execute the method according to any one of claims 23 to 43.

51. A computer program, where the running of the computer program causes a computer to execute the method according to any one of claims 1 to 22, or execute the method according to any one of claims 23 to 43.

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