Cell selection method and related device

Abstract

Provided in the present application is a cell selection method, comprising: receiving a cell selection control parameter based on a wake-up signal (WUS); and on the basis of the cell selection control parameter based on the WUS, selecting a target cell for camping from at least one cell. In this way, during a cell selection process, for example, during a cell search or cell reselection process, a terminal can select, to the greatest possible extent, a cell that supports or enables a WUS / WUR feature, thereby obtaining a paging monitoring gain of a WUS / WUR.

Description

A cell selection method and related equipment Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a cell selection method, device, computer-readable storage medium, and computer program product. Background Art

[0002] A cell is an area covered by network equipment or a portion of it in a communications system. Within this area, electronic devices, such as user equipment (UE), can communicate with the network equipment over wireless channels. In a mobile communications system, for example, a cell can be the area covered by a base station or its sector antennas. Within this area, UEs can communicate with the base station over wireless channels.

[0003] In many scenarios, a UE may be covered by multiple cells provided by the same network device or different network devices. How to select the appropriate cell for communication has become a key issue in the industry.

[0004] Summary of the Invention

[0005] The present application provides a cell selection method. The method combines the cell selection control parameters based on the wake-up signal (WUS) to select a target cell from at least one cell for residence, so that the terminal selects a cell that supports or turns on the WUS / WUR (wake-up signal receiver, full name wake-up signal receiver) feature as much as possible during the cell selection process to obtain the paging monitoring gain of WUS / WUR. The present application also provides a terminal device (also referred to as a terminal, user terminal), a network device, a computer-readable storage medium, and a computer program product corresponding to the above method.

[0006] In a first aspect, the present application provides a cell selection method. The method can be performed by a terminal. Specifically, the terminal can receive a cell selection control parameter based on a wake-up signal WUS, wherein the cell selection control parameter based on the WUS is a parameter used to provide a decision reference for cell selection, which is generally related to WUS / WUR support. The terminal can then select a target cell from at least one cell for camping based on the WUS-based cell selection control parameter.

[0007] In this method, the terminal selects a cell in combination with the WUS-based cell selection control parameters, so that during the cell selection process, such as cell search or cell reselection, the terminal selects cells that support or enable the WUS / WUR feature as much as possible to obtain the WUS / WUR paging monitoring gain.

[0008] In some possible implementations, the WUS-based cell selection control parameter includes at least one of a WUS-based offset or a WUS-based priority, wherein the WUS-based offset may be an offset set in conjunction with WUS support, and the WUS-based priority may be a priority set in conjunction with WUS support.

[0009] Through the above-mentioned WUS-based offset or WUS-based priority, the terminal can select cells that support or enable WUS / WUR features as much as possible during the cell selection process, thereby obtaining WUS / WUR paging monitoring gain.

[0010] In some possible implementations, the terminal may determine an evaluation index value of at least one cell according to a WUS-based cell selection control parameter, and then select a target cell to camp on from the at least one cell according to the evaluation index value.

[0011] This method uses the WUS-based cell selection control parameter to calculate the cell evaluation index. The evaluation index can more objectively reflect the benefits obtained by staying in the cell. Therefore, selecting a cell based on the evaluation index value can select a suitable cell and obtain the WUS / WUR paging monitoring gain.

[0012] In some possible implementations, the evaluation index value includes at least one of a first evaluation index value based on signal strength or a second evaluation index value based on signal quality. Accordingly, the terminal may adjust the measured value of the signal strength using the WUS-based cell selection control parameter to obtain the first evaluation index value; and / or adjust the measured value of the signal quality using the WUS-based cell selection control parameter to obtain the second evaluation index value.

[0013] This method supports adjusting the measured values ​​of signal strength and / or signal quality in combination with WUS-based cell selection control parameters to obtain evaluation index values, thereby evaluating the benefits obtained from the resident cell from different dimensions and providing rich reference information for subsequent cell selection.

[0014] In some possible implementations, the terminal may add an offset based on the WUS to the measured value of the signal strength to obtain the first evaluation index value. Alternatively, the terminal may perform a weighted operation on the measured value of the signal strength based on the priority of the WUS to obtain the first evaluation index value.

[0015] This method can achieve a more comprehensive evaluation of cells by simply adding offset operations or weighted calculation operations, improve the accuracy of cell selection, and select cells that support WUS / WUR as much as possible to obtain WUS / WUR paging monitoring gain.

[0016] In some possible implementations, the terminal may add an offset based on the WUS to the measured signal quality value to obtain a second evaluation index value. Alternatively, the terminal may perform a weighted operation on the measured signal quality value using the WUS-based priority as a weight to obtain the second evaluation index value.

[0017] This method can perform a more comprehensive evaluation of cells by adding an offset or weighting operation to the measured value of signal quality, thereby improving the accuracy of cell selection, and can select cells that support WUS / WUR as much as possible to obtain WUS / WUR paging monitoring gain.

[0018] In some possible implementations, the at least one cell includes a serving cell and a neighboring cell. The serving cell refers to a cell currently serving the terminal, such as a cell serving the terminal in a cell reselection scenario. A neighboring cell refers to a cell adjacent to the serving cell. The evaluation index value includes a third evaluation index value based on signal strength. The terminal may use the WUS-based cell selection control parameter to adjust the measured signal strength value to obtain the third evaluation index value.

[0019] This method supports adjusting the signal strength measurement value in combination with the WUS-based cell selection control parameters to obtain the evaluation index value, thereby evaluating the benefits obtained from the resident cell and providing rich reference information for subsequent cell selection.

[0020] In some possible implementations, the terminal may add a WUS-based offset to the measured signal strength value to obtain the third evaluation index value. Alternatively, the terminal may perform a weighted operation on the measured signal strength value using the WUS-based priority as a weight to obtain the third evaluation index value.

[0021] This method can achieve a more comprehensive evaluation of cells through a simple addition of offset operations or weighted calculation operations, improve the accuracy of cell reselection, and reselect cells supporting WUS / WUR as much as possible to obtain WUS / WUR paging monitoring gain.

[0022] In some possible implementations, the WUS-based offset or WUS-based priority is sent by a network device supporting WUS, the WUS offset is greater than 0, and the WUS-based priority is greater than 1. This allows cells supporting WUS / WUR to be preferentially selected, thereby obtaining a WUS / WUR paging monitoring gain.

[0023] In some possible implementations, the WUS-based cell selection control parameters are shared by multiple cells, or vary with the frequency, or vary with the cell. This allows configuration of WUS-based cell selection control parameters based on service requirements, such as sharing across multiple cells or within a cell, thereby reducing configuration workload and ease of configuration difficulty.

[0024] In some possible implementations, a terminal may receive a system information block (SIB) broadcast by a network device, the SIB including the WUS-based cell selection control parameters, for example, the SIB including WUS-based global control parameters shared by multiple cells. This method can simultaneously deliver WUS-based cell selection control parameters to multiple terminals by broadcasting the SIB, thereby assisting multiple terminals in performing cell selection.

[0025] In some possible implementations, the terminal may receive the cell selection control parameters based on the wake-up signal WUS unicast by the network device. This allows personalized configuration of the cell selection control parameters based on the WUS for a specific terminal to meet personalized needs.

[0026] In a second aspect, the present application provides a cell selection method. The method can be performed by a network device, which is a device that provides network services (such as access services), such as a base station. Specifically, the network device can obtain a cell selection control parameter based on a wake-up signal WUS, and then send the cell selection control parameter based on the wake-up signal WUS to the terminal device, and the cell selection control parameter based on the WUS is used to select the cell in which the terminal device resides.

[0027] This method takes into account the network device's support for WUS / WUR and selects a target cell from at least one cell for camping based on the WUS-based cell selection control parameters configured by the network device. This allows the terminal to select cells that support or enable WUS / WUR features as much as possible during the cell selection process, thereby achieving WUS / WUR paging monitoring gain.

[0028] In some possible implementations, the WUS-based cell control parameter includes at least one of a WUS-based offset or a WUS-based priority.

[0029] In some possible implementations, the WUS-based cell control parameter is shared by multiple cells, or the WUS-based cell selection control parameter varies with the frequency, or the WUS-based cell selection control parameter varies with the cell.

[0030] In some possible implementations, the sending the cell selection control parameter based on the wake-up signal WUS to the terminal device includes:

[0031] A system information block SIB is broadcast to the terminal device, where the SIB includes the cell selection control parameter based on the wake-up signal WUS.

[0032] In some possible implementations, the sending the cell selection control parameter based on the wake-up signal WUS to the terminal device includes:

[0033] Unicast the cell selection control parameters based on the wake-up signal WUS to the terminal device.

[0034] In a third aspect, the present application provides a terminal device. The terminal device includes a memory and at least one processor. The memory is used to store a program, and the at least one processor is used to run the program, so that the terminal device implements the cell selection method provided in the first aspect of the present application.

[0035] In a fourth aspect, the present application provides a network device. The network device includes a memory and at least one processor. The memory is used to store a program, and the at least one processor is used to run the program, so that the terminal device implements the cell selection method provided in the second aspect of the present application.

[0036] In a fifth aspect, the present application provides a computer storage medium for storing a computer program. When the computer program is executed, it is used to implement the cell selection method provided in the first aspect or the second aspect of the present application.

[0037] In a sixth aspect, the present application provides a computer program product. When the computer program product is run, for example, on a terminal device or a network device, it executes the cell selection method provided in the first aspect or the second aspect of the present application.

[0038] Based on the implementation methods provided in the above aspects, this application can also be further combined to provide more implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical methods of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments.

[0040] FIG1 is an example diagram of a scenario of communication between a base station and a terminal provided in an embodiment of the present application;

[0041] FIG2 is a schematic diagram of the evolution of a paging mechanism provided in an embodiment of the present application;

[0042] FIG3 is a flow chart of a cell selection method provided in an embodiment of the present application;

[0043] FIG4 is a flowchart of another cell selection method provided in an embodiment of the present application;

[0044] FIG5 is an interactive flow chart of a cell selection method in a cell search scenario provided by an embodiment of the present application;

[0045] FIG6 is an interactive flow chart of a cell selection method in a cell reselection scenario provided by an embodiment of the present application;

[0046] FIG7 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0047] FIG8 is a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context. It should also be understood that in the embodiments of the present application, "one or more" refers to one, two or more; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship.

[0049] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0050] The "multiple" involved in the embodiments of the present application means greater than or equal to two. It should be noted that in the description of the embodiments of the present application, the words "first" and "second" are only used for the purpose of distinguishing the description and cannot be understood as indicating or implying relative importance or order.

[0051] The embodiments of the present application are applied to a communication system. The communication system may be a second generation mobile networks (2G), a third generation mobile networks (3G), a long term evolution (LTE), a fifth generation mobile networks (5G), a hybrid LTE and 5G architecture, a 5G New Radio (5G NR) system, or new communication systems emerging in future communication developments.

[0052] A communication system includes network equipment and terminal equipment (also referred to as terminals or user terminals, UEs). Network equipment is a device on the network side that provides network communication functions. In some cases, it is also called a network element. Network equipment can typically be a base station, a functional unit of a base station, or a combination of functional units of a base station. An example of a communication system is shown in Figure 1, which includes base station 1 and terminal 2.

[0053] In the embodiments provided in the present application, the base station can be any device with wireless transceiver functions, including but not limited to: an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in long term evolution (LTE), a base station (gNodeB or gNB) or a transmission receiving point (TRP) in new radio (NR), a base station of subsequent evolution of 3GPP, an access node in a Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc. The base station can include one or more co-site or non-co-site transmission points (Transmission Reception Point, TRP). The base station can also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The base station can communicate with the terminal, or communicate with the terminal through a relay station. The terminal can communicate with multiple base stations of different technologies. For example, the terminal can communicate with a base station supporting the LTE network, and can also communicate with a base station supporting the 5G network. It can also establish dual connections with a base station supporting the LTE network and a base station supporting the 5G network.

[0054] In the embodiments provided herein, the terminal may be in various forms, such as a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a vehicle-mounted terminal device, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable terminal device, etc. The terminal may also be sometimes referred to as a terminal device, user equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, terminal device, wireless communication device, UE agent or UE device, etc. The terminal may also be a fixed terminal or a mobile terminal.

[0055] In a communication system, the terminal's state can be categorized into the following based on the Radio Resource Control (RRC) connection establishment status: idle state (RRC_IDLE), inactive state (RRC_INACTIVE), and connected state. When a terminal (such as a UE) in idle state needs to initiate a service, it first initiates an RRC establishment request. The process of transitioning from idle state to connected state is the RRC establishment process. The process of transitioning from inactive state to connected state is the RRC recovery process.

[0056] A terminal in idle or inactive state can periodically monitor paging and initiate RRC connection establishment and recovery procedures in response to the paging to facilitate downlink services. One of the goals of periodic monitoring of paging is to prevent the terminal from continuously monitoring downlink data and thus conserve power.

[0057] To facilitate understanding, the paging mechanism is described below with reference to the accompanying drawings.

[0058] As shown in Figure 2, in Release-15 (Rel-15), a version of the 5G standard, the main receiver (MR) of a terminal in an idle or inactive state is turned off, meaning the terminal is in a dormant state. The terminal wakes up at the paging occasion (PO) associated with the terminal according to the paging cycle to listen for paging. The calculation of the PO is related to the terminal identifier (ID) and the paging cycle. Many terminals can share a PO. When listening for paging on the PO, the terminal first uses the paging radio network temporary identifier (P-RNTI) to decode the physical downlink control channel (PDCCH). If the decoding is successful, the terminal receives the paging message on the corresponding physical downlink shared channel (PDSCH) resource based on the paging message scheduling information (time-frequency resources, modulation and coding scheme, etc.) contained in the PDCCH.

[0059] If the terminal receives a paging message that contains a terminal ID, it indicates that the terminal has been paged. The terminal can initiate RRC connection establishment and recovery processes to respond to the paging and receive downlink services. If the terminal does not detect a PDCCH scrambled by the P-RNTI, or the received paging message does not contain a terminal ID, the terminal considers that it has not been paged and returns to sleep mode.

[0060] Because each PO is shared by multiple terminals, all associated terminals in a PO need to use the P-RNTI to monitor the PDCCH. If even one terminal is paged, all associated terminals must receive the PDSCH paging message. For these associated terminals, this is a false paging alarm, and the power consumption of receiving the PDSCH is unnecessary.

[0061] To this end, another version of the 5G standard, Release-17 (denoted as Rel-17), also introduced Paging Early Indication (PEI) to support paging grouping. Terminals associated with a PO (paging occasion) are grouped and paging instructions are given separately, thereby reducing the probability of false alarms in paging.

[0062] Specifically, the PEI is Downlink Control Information (DCI) sent in the PDCCH. The DCI includes an 8-bit bitmap, with each bit corresponding to a paging packet. Before monitoring the P-RNTI at the PO, the terminal first monitors the PEI. If the bit corresponding to its own packet in the PEI is 1, it monitors the PO according to the Rel-15 method. Otherwise, it assumes that it will not be paged and returns to sleep.

[0063] In the Rel-15 paging mechanism, since the terminal needs to monitor the P-RNTI before the PO, that is, to perform PDCCH decoding, it is necessary to wake up the main receiver (Main Receiver) before the PO. In another version of the 5G standard, release-18 (denoted as Rel-18), further consideration is given to introducing a receiver with lower power consumption (Low power Receiver), such as a wake-up receiver (Wake Up Receiver, WUR). The WUR can receive a simpler wake-up signal (Wake Up Signal, WUS). The WUS is usually sequence-related and does not require PDCCH decoding, so the power consumption is lower. For terminals that are not paged, it is only necessary to start the LR or WUR before the PO to detect the WUS. If the WUS is not detected, the terminal continues to sleep. If the WUS is detected, the terminal wakes up the MR and listens for paging.

[0064] WUS / WUR is a feature used by the terminal in the idle state (RRC_IDLE) and the inactive state (RRC_INACTIVE) to achieve paging energy saving. In the above two states, the terminal resides in a certain cell. In addition to monitoring WUS / WUR and paging, it can also select a cell according to certain rules. Cell selection includes the first selection of a cell (such as a cell search) or cell reselection. Among them, cell search refers to a terminal that has just entered the network (for example, a terminal that has just been turned on). It needs to search and select a cell to reside in. In the resident state, it listens to the paging of the cell and performs uplink and downlink services. Cell reselection refers to a terminal that resides in a certain cell. The received signal may change as the terminal moves. The terminal reselects the cell to reside in according to the signal change. For example, when the terminal moves to the edge of the cell, the signal may deteriorate, while the signal of the adjacent cell may improve. The terminal can reside in the adjacent cell through cell reselection.

[0065] However, cell selection (such as cell search or cell reselection) is usually implemented based on signal strength and signal quality, and there is no guarantee that the terminal can select a cell that supports WUS / WUR and thus obtain the benefits of this feature.

[0066] In view of this, the present application provides a cell selection method. In this method, a terminal can receive a cell selection control parameter based on WUS, and then select a target cell from at least one cell to reside on based on the cell selection control parameter based on WUS. In this way, the terminal can select cells that support or enable the WUS / WUR feature as much as possible during the cell selection process, such as during cell search or cell reselection, to obtain the paging monitoring gain of WUS / WUR.

[0067] In order to make the technical solution of the present application clearer and easier to understand, the cell selection method of the present application is introduced below with reference to the accompanying drawings.

[0068] Referring to the flowchart of a cell selection method shown in FIG3 , the method may be executed by a terminal and includes the following steps:

[0069] S302: The terminal receives a cell selection control parameter based on the WUS.

[0070] The WUS-based cell selection control parameter is a parameter used to provide a decision reference for cell selection, which is related to the WUS / WUR support. In some examples, the WUS-based cell selection control parameter includes a WUS-based offset (denoted as Offset WUS ) or WUS-based priority (denoted as WUS priority )

[0071] In some possible implementations, the WUS-based cell selection control parameters can be shared by multiple cells. For example, all cells of a network device (such as a base station) can share the WUS-based cell selection control parameters. In other words, the Offset of all cells of a network device WUS or WUS priority Can be the same.

[0072] In other possible implementations, the WUS-based cell selection control parameters may vary with the frequency, or the WUS-based cell selection control parameters may vary with the cell. A cell may be the smallest service unit consisting of a sector and a carrier frequency that provides UE access. Each sector uses one or more radio carrier frequencies to complete wireless coverage, and each radio carrier frequency uses a certain carrier frequency. The network device may set different WUS-based cell selection control parameters for different frequencies. In some examples, the network device may also set different WUS-based cell selection control parameters for different cells.

[0073] The WUS-based cell selection control parameters may be broadcast. In a specific implementation, the terminal may receive a system information block (SIB) broadcast by a network device. In this embodiment, the SIB includes the WUS-based cell selection control parameters. The terminal may obtain the WUS-based cell selection control parameters by parsing the SIB.

[0074] Among them, SIB includes the configuration information required by the terminal for cell reselection, such as the neighboring cell list (i.e., the list of neighboring cells) and the threshold for triggering cell reselection. SIB can be further divided into SIB2, SIB3, SIB4, and SIB5. SIB2 includes public configurations for same-frequency, different-frequency, and different-system cell reselection. Different systems refer to communication systems that use different access technologies. For example, 4G communication systems and 5G communication systems belong to different systems. SIB3 includes same-frequency cell reselection configuration. SIB4 includes different-frequency cell reselection configuration. SIB5 includes different-system cell reselection. When the WUS-based cell selection control parameters are shared by multiple cells, the above-mentioned WUS-based cell selection control parameters can be carried in SIB2. When the WUS-based cell selection control parameters vary with the frequency, the above-mentioned WUS-based cell selection control parameters can be carried in SIB3 for the same-frequency cell, and in SIB4 for the different-frequency cell.

[0075] It should be noted that the network device may also configure WUS-based cell selection control parameters for different terminals. In this case, the network device may send the WUS-based cell selection control parameters in a unicast manner. Specifically, the terminal may receive the WUS-based cell selection control parameters unicast by the network device. The unicast message may be an RRCRELEASE message, which carries the WUS-based cell selection control parameters.

[0076] In order to ensure that cells supporting WUS / WUR can be selected first, the Offset of the network equipment supporting WUS / WUR is configured WUS or WUS priority Can be larger than the offset configured on network devices that do not support WUS / WUR WUS or WUS priority For example, if the network device supports WUS / WUR, you can configure: Offset WUS >0 or WUS priority > 1. For example, if the network device does not support WUS / WUR, you can configure: Offset WUS <0 or WUS priority <1.

[0077] Need to explain, network device configuration Offset WUS >0 or WUS priority >1 can include three situations, one of which is the network device configuration offset WUS >0, another case is that the network device is configured with WUS priority >1, there is another case where you can configure the Offset for the network device WUS >0 and WUS priority >1. Similarly, the network settings configure Offset WUS <0 or WUS priority <1 can also be divided into 3 situations, which will not be listed here one by one.

[0078] S304: The terminal selects a target cell to camp on from at least one cell according to the WUS-based cell selection control parameter.

[0079] Specifically, the terminal can determine an evaluation index value for at least one cell based on the WUS-based cell selection control parameters. The evaluation index value can be used to measure the benefits of camping on the cell. The terminal can then select a target cell from the at least one cell for camping on based on the evaluation index value of the at least one cell. Specifically, the terminal can determine the cell as the target cell for camping on if the evaluation index value meets a set condition. The set condition can be set based on service requirements.

[0080] Cell selection by a terminal can be applied in different scenarios. For example, a terminal can perform a cell search upon first entering a network (e.g., upon powering on) to select a cell for the first time. Another example is a terminal can perform cell reselection when the signal quality or signal strength of the current serving cell meets set conditions. The following examples illustrate different scenarios.

[0081] In a cell search scenario, the evaluation index value includes at least one of a first evaluation index value based on signal strength or a second evaluation index value based on signal quality. Accordingly, the terminal can use the WUS-based cell selection control parameter to adjust the measured value of the signal strength to obtain the first evaluation index value. The terminal can also use the WUS-based cell selection control parameter to adjust the measured value of the signal quality to obtain the second evaluation index value. In some examples, the terminal can use the WUS-based cell selection control parameter to adjust both the measured value of the signal strength and the measured value of the signal quality to obtain corresponding evaluation index values.

[0082] Specifically, the terminal may add an offset based on WUS to the measured value of the signal strength. WUS Alternatively, the terminal may select a WUS based on the priority of the WUS. priorityThe first evaluation index value is obtained by performing a weighted operation on the measured value of the signal strength.

[0083] Similarly, the terminal can add an offset based on WUS to the measured value of the signal quality. WUS Alternatively, the terminal may select a WUS-based priority value. priority The signal quality measurement value is weighted to obtain a second evaluation index value.

[0084] It should be noted that the Offset for signal strength WUS , Offset for signal quality WUS Can be configured separately, for example, can be configured to different values. Similarly, for WUS signal strength priority , WUS for signal quality priority , can also be configured separately, for example, they can be configured to different values.

[0085] In a cell search scenario, the condition can be set to require that the evaluation index value be greater than a set threshold. When a cell's evaluation index value is greater than the set threshold, the terminal can identify the cell as a target cell and select the target cell for camping. Furthermore, if multiple cells have evaluation index values ​​greater than the set threshold, the terminal can select the cell with the largest evaluation index value as the target cell for camping.

[0086] In a cell reselection scenario, at least one cell includes a serving cell and a neighboring cell, and the evaluation index value may include a third evaluation index value based on signal strength. Accordingly, the terminal may adjust the measured value of signal strength using the WUS-based cell selection control parameter to obtain the third evaluation index value.

[0087] Specifically, the terminal may add an offset based on the WUS to the measured value of the signal strength to obtain a third evaluation index value. Alternatively, the terminal may perform a weighted operation on the measured value of the signal strength using the priority based on the WUS as a weight to obtain the third evaluation index value. It should be noted that the method for measuring signal strength in the cell reselection scenario may be different from the method for measuring signal weakness in the cell search scenario.

[0088] In a cell reselection scenario, the condition can be set to ensure that the evaluation index value is greater than the evaluation index value of the serving cell. When the evaluation index value of the neighboring cell is greater than that of the serving cell, the terminal can select the neighboring cell as the target cell for camping. In other words, the terminal can switch from the current serving cell to the target cell.

[0089] Furthermore, the above-mentioned addition of offset or weighted operation is only some examples of adjusting the measured value to obtain the evaluation index value. In other possible implementations of the embodiment of the present application, the evaluation index value can also be obtained by other operations. For example, the terminal can subtract the offset based on WUS from the measured value to obtain the evaluation index value. In this case, the Offset value configured by the network device supporting WUS / WUR is WUS Can be smaller than the offset configured on network devices that do not support WUS / WUR WUS For example, if the network device supports WUS / WUR, you can configure: Offset WUS <0; the network device does not support WUS / WUR, you can configure: Offset WUS >0.

[0090] Based on the above description, it can be seen that the cell selection method of the embodiment of the present application takes into account the support of WUS / WUR by the network device and selects a target cell from at least one cell for camping according to the WUS-based cell selection control parameters configured by the network device. In this way, during the cell selection process, the terminal can select cells that support or enable the WUS / WUR feature as much as possible, thereby obtaining the paging monitoring gain of WUS / WUR.

[0091] FIG3 introduces the cell selection method of the present application from the perspective of a terminal. Next, the cell selection method of the present application will be described from the perspective of a network device.

[0092] Referring to the flowchart of a cell selection method shown in FIG4 , the method includes the following steps:

[0093] S402: The network device obtains a cell selection control parameter based on the WUS.

[0094] WUS-based cell selection control parameters are used to provide a reference for cell selection decisions. These parameters are typically related to the network device's support for WUS / WUR. WUS-based cell selection control parameters can be manually configured by the user or automatically configured by the network device according to mapping rules based on its WUS / WUR support.

[0095] In some possible implementations, the network device can present the network device's support for WUS / WUR to the user on the configuration interface, and receive WUS-based cell selection control parameters configured by the user through the configuration interface based on the network device's support for WUS / WUR.

[0096] In other possible implementations, the network device may obtain the network device's support for WUS / WUR, and then automatically configure WUS-based cell selection control parameters based on the network device's support for WUS / WUR and pre-set mapping rules. The mapping rules may include a mapping relationship between WUS / WUR support and WUS-based cell selection control parameters.

[0097] In this embodiment, the WUS-based cell selection control parameters include but are not limited to the WUS-based offset Offset WUS Or based on WUS priority WUS priority Based on this, the mapping rule can be the support of WUS / WUR and Offset WUS 、WUS priority The mapping rule can be in the form of a conditional statement, such as an if-then statement. For example, the mapping rule can be if the network setting supports WUS / WUR, then Offset WUS Greater than 0, or WUS priority Greater than 1.

[0098] Furthermore, the WUS-based cell control parameters can be shared by multiple cells. For example, multiple cells on the same network device can share WUS-based cell control parameters. In some possible implementations, WUS-based cell selection control parameters can also vary with frequency. In other possible implementations, WUS-based cell selection control parameters can also vary with cell. Similarly, a network device can configure WUS-based cell selection control parameters for different terminals. In other words, WUS-based cell selection control parameters can also vary with the terminal.

[0099] S404: The network device sends a WUS-based cell selection control parameter to the terminal.

[0100] The WUS-based cell selection control parameter is used to select a cell for the terminal device to reside in. The network device may send the WUS-based cell selection control parameter to the terminal via broadcast or unicast, so that the terminal can select a target cell to reside in based on the WUS-based cell selection control parameter.

[0101] In a specific implementation, the network device may broadcast a system information block (SIB) to the terminal. The SIB includes the WUS-based cell selection control parameters. For example, if the WUS-based cell selection control parameters are shared by multiple cells, or the WUS-based cell selection control parameters vary with the frequency, or the WUS-based cell selection control parameters vary with the cell, the network device may broadcast the SIB carrying the WUS-based cell selection control parameters to the terminal.

[0102] In some possible implementations, the network device may also send a unicast message, such as an RRCRELEASE message, to the terminal. The unicast message carries the WUS-based cell selection control parameters. This allows the network device to unicast the WUS-based cell selection control parameters to the terminal.

[0103] In this method, the network device, based on its own support for WUS / WUR, sends WUS-based cell selection control parameters to the terminal, allowing the terminal to select a target cell from at least one cell to camp on based on the WUS-based cell selection control parameters configured by the network device. This allows the terminal to select cells that support or enable the WUS / WUR feature as much as possible during the cell selection process, thereby achieving WUS / WUR paging monitoring gain.

[0104] Figures 3 and 4 introduce the cell selection method of the present application from the perspectives of the terminal and network equipment respectively. The following will introduce the cell selection method of the present application from the perspective of overall interaction (system interaction) in combination with specific application scenarios.

[0105] First, referring to FIG5 , a flow chart of a cell selection method in a cell search scenario is shown. The method is applied to a communication system including a UE and a base station (e.g., a gNB). As shown in FIG5 , the method includes the following steps:

[0106] S502. The base station broadcasts a synchronization signal block.

[0107] A synchronization signal block (SSB) is a block used to establish signal synchronization. Base stations periodically broadcast SSBs to help terminals identify the cell and establish downlink synchronization with it. An SSB can include a synchronization signal and a physical broadcast channel information block (PBCH block).

[0108] The synchronization signal is used by terminals to detect and achieve downlink synchronization with the base station. The physical broadcast channel information block includes the Master Information Block (MIB) within the system information. The MIB primarily contains basic cell configuration, which is used by terminals to determine whether they can reside in the cell and provides scheduling information for receiving system information blocks (e.g., System Information Block 1, SIB1).

[0109] S504. The base station broadcasts a system information block SIB.

[0110] Similar to the synchronization signal block, the base station can broadcast the SIB periodically. The SIB may include cell selection control parameters based on the WUS. Among them, the SIB may include any one of SIB1, SIB2, SIB3, SIB4 or SIB5. SIB1 includes cell-related configurations, such as cell selection configuration and random access configuration. Therefore, the base station can carry the WUS-based cell selection control parameters in SIB1 and broadcast the above-mentioned WUS-based cell selection control parameters to the terminal. In other possible implementation methods of the embodiment of the present application, the base station may also carry the WUS-based cell selection control parameters in SIB2, SIB3, SIB4 or SIB5, thereby broadcasting the WUS-based cell selection control parameters to the terminal.

[0111] Taking SIB1 as an example to carry WUS-based cell selection control parameters, the format of SIB1 can be:

[0112] Among them, wusCellSelectionOffset represents the offset based on WUS, and xx dB, yy dB, and zz dB represent possible values ​​listed for the offset based on WUS.

[0113] S506: The UE measures the cell to obtain a measurement result, and determines an evaluation index value of the cell based on the measurement result. If the evaluation index value of the cell meets the set condition, S508 is executed; if the evaluation index value of the cell does not meet the set condition, S510 is executed.

[0114] Specifically, the UE can measure the Reference Signal Received Power (RSRP) and / or the Reference Signal Received Quality (RSRQ) of the cell to obtain RSRP and / or RSRQ measurements. RSRP is used to measure the power of the downlink reference signal and can represent the signal strength; RSRQ is used to measure the received quality of the downlink reference signal of a specific cell and can represent the signal quality.

[0115] The UE may adjust the above-mentioned RSRP measurement value and / or RSRQ measurement value to obtain the corresponding evaluation index value. Specifically, the UE receives the SSB for synchronization and receives SIB1 according to the SIB1 configuration contained in the SSB. SIB1 may include WUS-based cell selection control parameters. The WUS-based cell selection control parameters include the WUS-based offset Offset WUS Or based on WUS priority WUS priorityThe UE may add the corresponding WUS-based offset Offset to the RSRP measurement value or the RSRQ measurement value. WUS To obtain the corresponding evaluation index value, or the UE can use the WUS priority based on the WUS priority The RSRP measurement value or the RSRQ measurement value is weighted to obtain the corresponding evaluation index value.

[0116] When using WUS-based offset WUS When making adjustments, the first evaluation index value and the second evaluation index value can be calculated using the following formula:

[0117] Srxlev is the first evaluation index value, indicating the evaluation index value based on signal strength (such as signal reception level RX level) during cell selection. Squal is the second evaluation index value, indicating the evaluation index value based on signal quality during cell selection. Qrxlevmeas is the measured value of RSRP, and Qqualmeas is the measured value of RSRQ.

[0118] Qrxlevmin indicates the reference minimum signal reception level required by the cell. If the UE supports the supplementary uplink (SUL) frequency of the current cell, Qrxlevmin can be obtained from q-RxLevMinSUL (if present) in SIB1, SIB2, or SIB4; otherwise, Qrxlevmin can be obtained from q-RxLevMin in SIB1, SIB2, or SIB4. q-RxLevMinSUL indicates the reference minimum signal reception level for terminals supporting the supplementary uplink to reside in the cell, and q-RxLevMin indicates the reference minimum signal reception level for terminals that do not support the supplementary uplink to reside in the cell.

[0119] Qrxlevminoffset represents the offset of the signaled Qrxlevmin taken into account in the Srxlev evaluation, which is the result of periodically searching for a higher priority PLMN when normally camping on a visited public land mobile network (VPLMN). It should be noted that if a Qrxlevmin-related offset Qrxlevminoffset exists in SIB3 and / or SIB4, such as QrxlevminoffsetcellSUL or Qrxlevminoffsetcell, the above offset may also be added when calculating the first evaluation index value.

[0120] Qqualminoffset represents the offset of the signalled Qqualmin taken into account in the Squal evaluation, which is the result of periodically searching for higher priority PLMNs when normally camped in a visited VPLMN.

[0121] Pcompensation represents compensation (in dB). For FR1, if the UE supports additionalPmax included in the NR-NS-PmaxList in SIB1, SIB2 or SIB4, Pcompensation can be max(P EMAX1 -P PowerClass ,0)-(min(P EMAX2 ,P PowerClass )-min(P EMAX1 ,P PowerClass )), otherwise Pcompensation can be max(P EMAX1 -P PowerClass ,0). Among them, P EMAX Indicates the maximum transmission power (Maximum TX power level) that the UE may use when performing uplink transmission in the cell, P PowerClass Indicates the maximum RF output power of the UE determined based on the UE power class.

[0122] Qoffsettemp represents the offset temporarily applied to the cell, in dB. For detailed definition, see TS 38.331.

[0123] Offset WUS A WUS-based cell selection control parameter. When the base station supports WUS / WUR, Offset WUS It can be configured as a positive number, so that the Srxlev and Squal of the cell determined by the terminal are more likely to be greater than 0, and can be selected first.

[0124] When using WUS-based priority priority When making adjustments, the first evaluation index value and the second evaluation index value can be calculated using the following formula:

[0125] WUS priority Another WUS-based cell selection control parameter. When the base station supports WUS / WUR, WUS priority It can be configured as a positive number greater than 1, so that the Srxlev and Squal of the cell determined by the terminal are more likely to be greater than 0 and can be selected preferentially.

[0126] S508: The UE selects the cell to camp on.

[0127] When the evaluation index value of a cell meets a set condition, such as a set threshold, the UE may select the cell to camp on. In some examples, the evaluation index value of the cell meeting the set condition may be: Srxlev>0 AND Squal>0.

[0128] S510: The UE searches for the next cell.

[0129] When the evaluation index value of a cell does not meet the set condition, the UE may search for the next cell and then execute S506 for the next cell until a cell whose evaluation index value meets the set condition is found.

[0130] In this method, the UE jointly considers signal strength (such as RSRP), signal quality (such as RSRQ) and whether the cell supports WUS / WUR (based on WUS control parameters) to perform cell search. This makes it easier to select cells that support WUS / WUR in the cell search scenario and obtain the paging monitoring gain of WUS / WUR.

[0131] Next, referring to FIG6 , a flow chart of a cell selection method in a cell reselection scenario, the method is applied to a communication system including a UE and a base station (e.g., a gNB). As shown in FIG6 , the method includes the following steps:

[0132] S602. The base station broadcasts a system information block SIB.

[0133] The base station may periodically broadcast the SIB. The SIB includes configuration information required by the UE for cell reselection. This configuration information includes, but is not limited to, a neighboring cell list and a threshold for triggering cell reselection. The threshold for triggering cell reselection may include at least one of a threshold corresponding to RSRP or a threshold corresponding to RSRQ.

[0134] The configuration information required for cell reselection can be divided into the common configuration for intra-frequency, inter-frequency, and inter-system cell reselection, the configuration for intra-frequency cell reselection, the configuration for inter-frequency cell reselection, and the configuration for inter-system cell reselection. The common configuration for intra-frequency, inter-frequency, and inter-system cell reselection can be in SIB2, the configuration for intra-frequency cell reselection can be in SIB3, the configuration for inter-frequency cell reselection can be in SIB4, and the configuration for inter-system cell reselection can be in SIB5.

[0135] The SIB may include WUS-based cell selection control parameters. In some examples, the WUS-based cell selection control parameters include a WUS-based offset (denoted as Offset WUS ) or WUS-based priority (denoted as WUSpriority ). When the above-mentioned WUS-based cell selection control parameters are shared by multiple cells, the WUS-based cell selection control parameters can be configured in SIB2. When the WUS-based cell selection control parameters vary with the frequency, the same-frequency cell selection control parameters can be configured in SIB3, and the different-frequency cell selection control parameters can be configured in SIB4. In other possible implementations of the embodiment of the present application, the WUS-based cell selection control parameters can also be configured in SIB1 or SIB5, which is not limited in this embodiment.

[0136] In some possible implementations, the base station may also send the WUS-based cell selection control parameters to the terminal by sending a unicast message. The unicast message includes but is not limited to an RRCRELEASE message. For example, when the WUS-based cell selection control parameters are configured for the terminal, the base station may unicast the WUS-based cell selection control parameters to the terminal.

[0137] S604: The UE determines whether to trigger cell reselection based on the SIB. If so, execute S606.

[0138] The cell in which a UE is currently residing is called a serving cell. A UE residing in a serving cell can measure signal strength and / or signal quality. When the measured signal strength and / or signal quality falls below the threshold for triggering cell reselection configured in the SIB, cell reselection is triggered.

[0139] For example, the threshold for triggering cell reselection includes a threshold corresponding to RSRP and a threshold corresponding to RSRQ. When the measured RSRP value is greater than the RSRP threshold and the measured RSRQ value is greater than the RSRQ threshold, cell reselection may be triggered. The UE may execute S606 to enter the cell reselection process.

[0140] S606: The UE measures the neighboring cells and obtains evaluation index values ​​of the neighboring cells according to the measurement results.

[0141] Specifically, the UE can measure the signal strength of the neighboring cell, and the measurement result can be the RSRP measurement value. The UE can use the offset based on the WUS (denoted as Offset WUS ) or WUS-based priority (denoted as WUS priority ) and other WUS-based cell selection control parameters, adjust the RSRP measurement value to obtain a third evaluation index value based on signal strength of the neighboring cell. The UE may also combine the RSRP measurement result of the serving cell to obtain the third evaluation index value based on signal strength of the serving cell. For example, the UE may adjust the RSRP measurement value of the serving cell to obtain the third evaluation index value based on signal strength of the serving cell.

[0142] When using WUS-based offset WUS When making adjustments, the third index value of the serving cell and the third evaluation index value of the neighboring cell can be calculated using the following formula: S =Q meas,s +Q hyst -Qoffsettemp+Qffset WUS (5) R n =Q meas,n -Qoffset-Qoffsettemp+Offset WUS (6)

[0143] Among them, R S Represents the third evaluation index value of the serving cell, R n Indicates the third evaluation index value of the neighboring cell. meas Indicates the RSRP measurement quantity used in cell reselections. meas,s is the RSRP measurement value of the serving cell during cell reselection, Q meas,n It is the RSRP measurement value of the neighboring cell during cell reselection.

[0144] Qhyst is an offset set to avoid ping-pong effect and reduce jitter. Qoffset is an offset configured for intra-frequency measurement or inter-frequency measurement. For intra-frequency measurement, if Qoffset s,n is fixed, then Qoffset is equal to Qoffset s,n , if not fixed, Qoffset is equal to 0. For inter-frequency measurements, if Qoffset s,n is fixed, then Qoffset is equal to Qoffset s,n +Qoffset frequency . , if not fixed, then Qoffset is equal to Qoffset frequency Qoffsettemp represents the offset temporarily applied to the cell, in dB. For detailed definitions, see TS 38.331.

[0145] Offset WUS A WUS-based cell selection control parameter. When the base station supports WUS / WUR, Offset WUS It can be configured as a positive number, so that the terminal can determine the R of the cell Sor R n More likely to be greater than 0, it can be selected first.

[0146] When using WUS-based priority priority When making adjustments, the third index value of the serving cell and the third evaluation index value of the neighboring cell can be calculated using the following formula: S =Q meas,s *WUS priority +Q hyst -Qoffsettemp (7) R n =Q meas,n *WUS priority -Qoffset-Qoffsettemp+Offset WUS (8)

[0147] Among them, WUS priority Another WUS-based cell selection control parameter. When the base station supports WUS / WUR, WUS priority It can be configured as a positive number greater than 1, so that the terminal can determine the R S or R n More likely to be greater than 0, it can be selected first.

[0148] S608. The UE selects a target cell to camp on based on the evaluation index value of the serving cell and the evaluation index value of the neighboring cell.

[0149] Specifically, the UE can compare the R S and the R of the neighboring cells n When there is an R n Greater than the serving cell's R S , the UE can select the neighboring cell as the target cell to camp on. It should be noted that the UE can determine the R of a neighboring cell for the first time. n Greater than the serving cell's R S When the neighboring cell is determined as the target cell, the R n R of the serving cell S For comparison, when there are multiple neighboring cells R n Greater than the serving cell's R S , you can choose R n The largest neighboring cell is the target cell to be stationed. n are not greater than the R of the serving cell S , the serving cell can be selected as the target cell for camping, that is, the UE can remain camped in the serving cell without performing cell switching.

[0150] In this method, the UE jointly considers the signal strength (such as RSRP) and whether the cell supports WUS / WUR (based on the control parameters of WUS) to perform cell reselection. This makes it easier to select a cell that supports WUS / WUR in the cell reselection scenario and obtain the paging monitoring gain of WUS / WUR.

[0151] Based on the aforementioned method embodiment, the present application further provides a communication device. The communication device of the present application is described below with reference to the accompanying drawings.

[0152] Figure 7 shows an example of the composition of a communication device provided in an embodiment of the present application. The communication device can be a terminal, including but not limited to a mobile phone, a smart wearable device (such as a smart watch), and other electronic devices. Taking a mobile phone as an example, the communication device may include a processor 310, an external memory interface 320, an internal memory 321, a display 330, a camera 340, an antenna 1, an antenna 2, a mobile communication module 350, and a wireless communication module 360.

[0153] It should be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the communication device. In other embodiments, the communication device may include more or fewer components than shown, or may combine or separate certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0154] The processor 310 may include one or more processing units. For example, the processor 310 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). The different processing units may be independent devices or integrated into one or more processors.

[0155] It is understood that the interface connection relationship between the modules illustrated in this embodiment is only a schematic illustration and does not constitute a structural limitation of the electronic device. In other embodiments of the present application, the electronic device may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0156] External memory interface 320 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device. The external memory card communicates with processor 310 via external memory interface 320 to implement data storage functions. For example, files such as music and videos can be stored on the external memory card.

[0157] The internal memory 321 can be used to store computer executable program code, and the executable program code includes instructions. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321. The internal memory 321 may include a program storage area and a data storage area. Among them, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area can store data created during the use of the electronic device (such as audio data, a phone book, etc.), etc. In addition, the internal memory 321 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc. The processor 310 executes various functional applications and data processing of the electronic device by running the instructions stored in the internal memory 321, and / or the instructions stored in the memory provided in the processor.

[0158] The wireless communication function of the electronic device can be implemented through antenna 1, antenna 2, mobile communication module 350, wireless communication module 360, modem processor and baseband processor.

[0159] Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in an electronic device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In other embodiments, the antennas can be used in conjunction with a tuning switch.

[0160] The mobile communication module 350 can provide solutions for wireless communications including 2G / 3G / 4G / 5G applied to electronic devices. The mobile communication module 350 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The mobile communication module 350 can receive electromagnetic waves from the antenna 1, and filter, amplify, and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 350 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the processor 310. In some embodiments, at least some of the functional modules of the mobile communication module 350 can be set in the same device as at least some of the modules of the processor 310.

[0161] In some embodiments, the electronic device initiates or receives a call request via the mobile communication module 350 and the antenna 1 .

[0162] In addition, an operating system runs on the above components, such as the iOS operating system, the Android operating system, and the Windows operating system. Application programs can be installed and run on the operating system.

[0163] Figure 8 is an example of the composition of another communication device provided in an embodiment of the present application. The communication device can be a network device, such as a base station. Figure 8 shows a simplified schematic diagram of the base station structure. The base station includes parts 810, 820, and 830. Part 810 is mainly used for baseband processing, controlling the base station, etc.; Part 810 is usually the control center of the base station, which can usually be called a processor, which is used to control the base station to perform the processing operations on the network device side in the above method embodiment. Part 820 is mainly used to store computer program code and data. Part 830 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; Part 830 can usually be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. The transceiver module of part 830 can also be called a transceiver or a transceiver, etc., which includes an antenna 833 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. Alternatively, the device for implementing the receiving function in section 830 may be considered a receiver, and the device for implementing the transmitting function may be considered a transmitter, that is, section 830 includes a receiver 832 and a transmitter 831. The receiver may also be referred to as a receiving module, a receiver, or a receiving circuit, and the transmitter may be referred to as a transmitting module, a transmitter, or a transmitting circuit.

[0164] Sections 810 and 820 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If multiple boards are present, the boards may be interconnected to enhance processing capabilities. As an optional implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may simultaneously share one or more processors.

[0165] For example, in one implementation, the transceiver module in section 830 is used to execute the transceiver-related processes performed by the base station in the embodiments shown in Figures 4 or 5 or 6. The processor in section 810 is used to execute the processing-related processes performed by the base station in the embodiments shown in Figures 4 or 5 or 6.

[0166] It should be understood that FIG8 is merely an example and not a limitation, and the network device including the processor, memory, and transceiver may not rely on the structure shown in FIG8 .

[0167] Those skilled in the art can clearly understand that, for the sake of convenience and brevity of description, the explanation and beneficial effects of the relevant contents in any of the communication devices provided above can refer to the corresponding method embodiments provided above, and will not be repeated here.

[0168] In this application, a terminal or network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as the Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0169] 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 modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0170] 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 illustrative. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules 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 an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0171] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules may be selected to achieve the purpose of the present embodiment according to actual needs.

[0172] In addition, the functional modules in the various embodiments of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules.

[0173] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of 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 process 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, a random access memory, a magnetic disk or an optical disk.

[0174] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0175] The descriptions of the processes or structures corresponding to the above figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

Claims

1. A cell selection method, characterized in that: The method comprises: receiving a cell selection control parameter based on a wake-up signal WUS; According to the WUS-based cell selection control parameter, a target cell is selected from at least one cell for camping.

2. The method according to claim 1, characterized in that The WUS-based cell selection control parameter includes at least one of a WUS-based offset or a WUS-based priority.

3. The method according to claim 1 or 2, characterized in that: The selecting a target cell to camp on from at least one cell according to the WUS-based cell selection control parameter includes: Determining an evaluation index value of at least one cell according to the WUS-based cell selection control parameter; A target cell is selected from the at least one cell for camping according to the evaluation index value.

4. The method according to claim 3, characterized in that The evaluation index value includes at least one of a first evaluation index value based on signal strength or a second evaluation index value based on signal quality; The determining, according to the WUS-based cell selection control parameter, an evaluation index value of at least one cell includes: Using the WUS-based cell selection control parameter to adjust the measured value of the signal strength to obtain the first evaluation index value; and / or, The measured value of the signal quality is adjusted using the WUS-based cell selection control parameter to obtain the second evaluation index value.

5. The method according to claim 4, characterized in that The using the WUS-based cell selection control parameter to adjust the measured value of the signal strength to obtain the first evaluation index value includes: Adding the measured value of the signal strength with an offset based on WUS to obtain the first evaluation index value; or, The first evaluation index value is obtained by performing a weighted operation on the measured value of the signal strength using the WUS-based priority as a weight.

6. The method according to claim 4, characterized in that The using the WUS-based cell selection control parameter to adjust the measured value of the signal quality to obtain the second evaluation index value includes: Adding an offset based on WUS to the measured value of the signal quality to obtain the second evaluation index value; or, The measured value of the signal quality is weighted by taking the priority based on WUS as the weight to obtain the second evaluation index value.

7. The method according to claim 3, characterized in that The at least one cell includes a serving cell and a neighboring cell, and the evaluation index value includes a third evaluation index value based on signal strength; The determining the evaluation index value of at least one cell according to the WUS-based cell selection control parameter includes: The measured value of the signal strength is adjusted using the WUS-based cell selection control parameter to obtain the third evaluation index value.

8. The method according to claim 7, characterized in that The using the WUS-based cell selection control parameter to modulate the measured value of the signal strength to obtain the third evaluation index value includes: Adding the measured value of the signal strength with an offset based on WUS to obtain the third evaluation index value; or, The measured value of the signal strength is weighted by performing a weighted operation based on the WUS priority to obtain the third evaluation index value.

9. The method according to claim 5, 6 or 8, characterized in that: The WUS-based offset or the WUS-based priority is sent by a network device supporting WUS, the WUS offset is greater than 0, and the WUS-based priority is greater than 1.

10. The method according to any one of claims 1 to 9, characterized in that: The WUS-based cell selection control parameter is shared by multiple cells, or the WUS-based cell selection control parameter varies with the frequency point, or the WUS-based cell selection control parameter varies with the cell.

11. The method according to claim 10, characterized in that The receiving a WUS-based cell selection control parameter includes: A system information block SIB broadcasted by a network device is received, wherein the SIB includes the WUS-based cell selection control parameter.

12. The method according to any one of claims 1 to 9, characterized in that: The receiving a cell selection control parameter based on a wake-up signal WUS includes: The receiving network device unicasts a cell selection control parameter based on the wake-up signal WUS.

13. A cell selection method, characterized in that: The method comprises: Acquire a cell selection control parameter based on the wake-up signal WUS; The cell selection control parameter based on the wake-up signal WUS is sent to the terminal device, and the cell selection control parameter based on WUS is used to select the cell where the terminal device resides.

14. The method according to claim 13, characterized in that The WUS-based cell control parameter includes at least one of a WUS-based offset or a WUS-based priority.

15. The method according to claim 13 or 14, characterized in that The WUS-based cell control parameter is shared by multiple cells, or the WUS-based cell selection control parameter varies with the frequency point, or the WUS-based cell selection control parameter varies with the cell.

16. The method according to claim 15, characterized in that The sending the cell selection control parameter based on the wake-up signal WUS to the terminal device includes: A system information block SIB is broadcast to the terminal device, where the SIB includes the cell selection control parameter based on the wake-up signal WUS.

17. The method according to claim 13 or 14, characterized in that The sending the cell selection control parameter based on the wake-up signal WUS to the terminal device includes: The cell selection control parameters based on the wake-up signal WUS are unicasted to the terminal device.

18. A terminal device, characterized in that: The terminal device comprises: Memory for storing computer programs or computer instructions; A processor, configured to execute a computer program or computer instruction stored in the memory, so that the terminal device executes the method according to any one of claims 1 to 12.

19. A network device, characterized in that: The network equipment includes: Memory for storing computer programs or computer instructions; A processor, configured to execute a computer program or computer instructions stored in the memory, so that the terminal device executes the method according to any one of claims 13 to 17.

20. A communication system, characterized in that: The communication system includes a network device and at least one terminal device; The at least one terminal device is used to execute the method according to any one of claims 1 to 12 to communicate with the network device.

21. A computer storage medium, characterized in that Used to store a computer program, which, when executed, is used to implement the method according to any one of claims 1 to 17.

Images