Cell reselection enhancements

Abstract

The embodiment of the invention relates to equipment, a method and a device for cell reselection enhancement and a computer readable storage medium. A first device receives cell reselection information from a second device providing a source cell, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection. The first device receives assistance information for cell reselection from the second device, the assistance information indicating at least one frequency or at least one neighbor cell to which a wake-up signal (WUS) is applied, and the set of candidate cells or the set of candidate frequencies includes the at least one neighbor cell or at least one frequency. The first device performs a cell reselection evaluation on at least a portion of the group of candidate cells or the group of candidate frequencies based on the cell reselection information and the assistance information. In this manner, the UE supporting the WUS may prioritize cells or frequencies to which the WUS is applied, so that energy efficiency may be improved.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of telecommunications, and in particular, to devices, methods, apparatuses, and computer-readable storage media for cell reselection enhancement. Background Art

[0002] UE energy efficiency is critical to 5G systems, and currently 5G devices may need to be charged weekly or daily, depending on individual usage time. Typically, 5G devices consume tens of milliwatts in RRC_IDLE state or RRC_INACTIVE state, and hundreds of milliwatts in RRC_CONNECTED state. In addition, energy efficiency is even more critical for UEs without continuous energy sources (for example, UEs using small rechargeable batteries and single button batteries). In order to improve energy efficiency and for a better user experience, it is a trend to extend battery life and reduce the power consumption of terminal devices. Summary of the invention

[0003] In general, example embodiments of the present disclosure provide a solution for cell reselection enhancement.

[0004] In a first aspect, a first device is provided. The first device includes at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the first device to at least perform: receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating a group of candidate cells or a group of candidate frequencies for cell reselection; receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the group of candidate cells or the group of candidate frequencies including at least one neighbor cell or at least one frequency; and performing cell reselection evaluation on at least a portion of the group of candidate cells or the group of candidate frequencies based on the cell reselection information and the auxiliary information.

[0005] In a second aspect, a second device is provided. The second device includes at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, causes the second device to at least perform: obtaining at least one indication of at least one frequency or at least one neighboring cell to which a wake-up signal is applied; sending cell reselection information to a first device in a source cell provided by the second device, the cell reselection information indicating a group of candidate cells or a group of candidate frequencies for cell reselection; and sending auxiliary information for cell reselection to the first device, the auxiliary information indicating at least one frequency or at least one neighboring cell, the group of candidate cells or the group of candidate frequencies including at least one neighboring cell or at least one frequency.

[0006] In a third aspect, a method is provided. The method includes: receiving, at a first device, cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating a group of candidate cells or a group of candidate frequencies for cell reselection; receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the group of candidate cells or the group of candidate frequencies including at least one neighbor cell or at least one frequency; and performing cell reselection evaluation on at least a portion of the group of candidate cells or the group of candidate frequencies based on the cell reselection information and the auxiliary information.

[0007] In a fourth aspect, a method is provided. The method includes: obtaining, at a second device, at least one indication of at least one frequency or at least one neighbor cell to which a wake-up signal is applied; sending cell reselection information to a first device in a source cell provided by the second device, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection; and sending auxiliary information for cell reselection to the first device, the auxiliary information indicating at least one frequency or at least one neighbor cell, the set of candidate cells or the set of candidate frequencies including the at least one neighbor cell or the at least one frequency.

[0008] In a fifth aspect, a first device is provided. The first device includes: a component for receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating a group of candidate cells or a group of candidate frequencies for cell reselection; a component for receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the group of candidate cells or the group of candidate frequencies including the at least one neighbor cell or the at least one frequency; and a component for performing cell reselection evaluation on at least a portion of the group of candidate cells or the group of candidate frequencies based on the cell reselection information and the auxiliary information.

[0009] In a sixth aspect, a second device is provided. The second device includes: a component for obtaining at least one indication of at least one frequency or at least one neighbor cell to which a wake-up signal is applied; a component for sending cell reselection information to a first device in a source cell provided by the second device, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection; and a component for sending auxiliary information for cell reselection to the first device, the auxiliary information indicating at least one frequency or at least one neighbor cell, the set of candidate cells or the set of candidate frequencies including the at least one neighbor cell or the at least one frequency.

[0010] In a seventh aspect, there is provided a computer readable medium having stored thereon a computer program which, when executed by at least one processor of a device, causes the device to perform the method according to the third aspect.

[0011] In an eighth aspect, there is provided a computer readable medium having stored thereon a computer program which, when executed by at least one processor of a device, causes the device to perform the method according to the fourth aspect.

[0012] Other features and advantages of the embodiments of the present disclosure will also be apparent when the following description of specific embodiments is read in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The embodiments of the present disclosure are presented in the form of examples, and their advantages will be explained in more detail below with reference to the accompanying drawings, in which:

[0014] Figure 1 An example communication environment is shown in which example embodiments of the present disclosure may be implemented;

[0015] FIG. 2A to FIG. 2B illustrates example operations of a UE supporting a wake-up signal (WUS) according to some example embodiments of the present disclosure;

[0016] Figure 3 A flowchart for a process for cell reselection according to some example embodiments of the present disclosure is shown;

[0017] Figure 4 A flowchart illustrating an example method according to some example embodiments of the present disclosure;

[0018] Figure 5 A flowchart illustrating another example method according to some example embodiments of the present disclosure is shown;

[0019] Figure 6 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0020] Figure 7 A block diagram of an example computer-readable medium is shown in accordance with some embodiments of the present disclosure.

[0021] Throughout the drawings, the same or similar reference numerals represent the same or similar elements. DETAILED DESCRIPTION

[0022] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes and to help those skilled in the art understand and implement the present disclosure without implying any limitation on the scope of the present disclosure. The present disclosure described herein can be implemented in various ways except for the way described below.

[0023] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0024] In this disclosure, references to "one embodiment," "an embodiment," "an example embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Furthermore, these phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is recognized by those skilled in the art that, whether or not explicitly described, it is within the knowledge of those skilled in the art to affect these features, structures, or characteristics in conjunction with other embodiments.

[0025] It should be understood that although the terms "first" and "second" etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish various elements. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0026] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprise", "have", "have", "include" and / or "comprising" when used herein specify the presence of the features, elements, and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0027] As used herein, “at least one of: ” and “at least one of ” and similar expressions, where a list of two or more elements is connected by “and” or “or”, mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements.

[0028] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0029] (a) hardware circuit implementation only (such as implementation in analog and / or digital circuitry only), and

[0030] (b) a combination of hardware circuitry and software such as (where applicable):

[0031] (i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0032] (ii) any portion of a hardware processor(s) with software (including digital signal processor(s), software, and memory(s) that work together to enable a device (such as a mobile phone or server) to perform various functions), and

[0033] (c) Hardware circuits and / or processor(s), such as microprocessor(s) or portions of microprocessor(s), that require software (e.g., firmware) to operate, but in which the software may not be present when not required for operation.

[0034] This definition of circuitry applies to all uses of the term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0035] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as a fifth generation (5G) system, long term evolution (LTE), advanced LTE (LTE-A), wideband code division multiple access (WCDMA), high speed packet access (HSPA), narrowband Internet of Things (NB-IoT), etc. In addition, in a communication network, the communication between a terminal device and a network device can be performed according to any suitable generation of communication protocols, including but not limited to first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G) new radio (NR) communication protocols, and / or any other protocols currently known or to be developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there will certainly be future types of communication technologies and systems that can be used to implement the present disclosure. The scope of the present disclosure should not be limited to the above-mentioned systems.

[0036] As used herein, the term "network device" refers to a node in a communication network via which a terminal device accesses the network and receives services from the network. A network device may refer to a base station (BS) or an access point (AP), for example, a NodeB (NodeB or NB), an evolved NodeB (eNodeB or eNB), a next generation NodeB (NR NB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), an integrated access and backhaul (IAB) node, a relay, a low power node (such as a femto, pico), etc., depending on the terminology and technology applied. A network device is allowed to be defined as part of a gNB, for example in a CU / DU split, in which case the network device is defined as a gNB-CU or a gNB-DU.

[0037] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a subscriber station (SS), a portable subscriber station, a mobile station (MS), or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device (such as a digital camera), a game terminal device, a music storage and playback appliance, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a notebook embedded device (LEE), a notebook mounted device (LME), a USB dongle, a smart device, a wireless client device (CPE), an Internet of Things (IoT) device, a watch or other wearable device, a head mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in the context of an industrial and / or automated processing chain), consumer electronic devices, equipment operating in a commercial and / or industrial wireless network, etc. The terminal device may also correspond to the mobile terminal (MT) part of an integrated access and backhaul (IAB) node (also known as a relay node). In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0038] Although in various example embodiments, the functions described herein may be performed in fixed and / or wireless network nodes, in other example embodiments, the functions may be implemented in a user equipment device (such as a mobile phone, or a tablet, or a laptop, or a desktop computer, or a mobile IoT device, or a fixed IoT device). The user equipment device may, for example, be equipped with corresponding capabilities (as described) associated with (multiple) fixed and / or wireless network nodes as required. The user equipment device may be a user device and / or a control device, such as a chipset or a processor, which is configured to control the user device when installed in the user device. Examples of such functions include boot server functions and / or home subscriber servers, which may be implemented in the user equipment device by providing a user equipment device with software configured to cause the user equipment device to execute from the perspective of these functions / nodes.

[0039] Example Environment

[0040] Figure 1 1 shows an example communication environment 100 in which example embodiments of the present disclosure may be implemented. Figure 1 As shown, the communication environment 100 may include a first device 110, a second device 120, a plurality of third devices 122 and 124, and a fourth device 112. The first device 110 and the fourth device 112 may be terminal devices (e.g., UEs), which may also be referred to as UE 110 or UE 140 hereinafter. The second device 120 and the plurality of third devices 130 may be network devices (e.g., gNBs). The second device 120, the plurality of third devices 112, and 114 each provide cells 102, 104, and 106.

[0041] exist Figure 1 In the example of FIG. 1 , the first device 110 and the fourth device 112 reside on the cell 102. Therefore, the first device 110 and the fourth device 112 can communicate with the second device 120. Hereinafter, the cell 102 may also be referred to as the source cell 102 or the serving cell 102. The third devices 122 and 124 act as neighbor base stations, and therefore, the cells 104 and 106 may also be referred to as neighbor cells 104 and 106. The second device 120 and the third devices 122 and 124 can communicate with each other.

[0042] In the case where the first device 110 or the fourth device 112 is in the RRC_IDLE state or the RRC-INACTIVE state, the cell reselection process may be performed. The second device 120 may broadcast cell reselection information, for example, in a system information block (SIB). The first device 110 or the fourth device 112 may measure the properties of the serving cell and the neighboring cell to initiate the reselection process. For searching and measuring inter-frequency adjacent cells, the second device 120 may need to indicate the carrier frequency. During the cell reselection process, the first device 110 or the fourth device 112 may identify the cell to be camped on (i.e., the target cell) based on the cell reselection criteria. The cell reselection criteria mainly involve the measurement of the serving cell and the neighboring cell, as shown below:

[0043] Intra-frequency reselection is based on the ranking of cells;

[0044] • Inter-frequency reselection is based on absolute priority, where the UE attempts to camp on the highest priority frequency available.

[0045] It should be understood that Figure 1 The number of devices and their connections shown is for illustration purposes only and does not represent any limitation. Communication environment 100 may include any suitable number of devices configured to implement the example embodiments of the present disclosure. Although not shown, it is understood that one or more additional devices may be located in any of cells 102 to 106, and one or more additional cells may be deployed in communication environment 100.

[0046] It should also be noted that, although illustrated as network devices, the second device 120 and the third devices 122 and 124 may be other devices other than network devices. Although illustrated as terminal devices, the first device 110 and the fourth device 140 may be other devices other than terminal devices. Hereinafter, for the purpose of illustration, some example embodiments are described, which have the first device 110 and the fourth device 140 operating as terminal devices, and the second device 120 and the third devices 122 and 124 operating as network devices. However, in some example embodiments, the operations related to the terminal devices may be implemented at the network devices or other devices, and the operations related to the network devices may be implemented at the terminal devices or other devices.

[0047] In some example embodiments, if the first device 110 is a terminal device and the second device 120 is a network device, the link from the second device 120 to the first device 110 is referred to as a downlink (DL), and the link from the first device 110 to the second device 120 is referred to as an uplink (UL). In the DL, the second device 120 is a transmitting (TX) device (or transmitter), and the first device 110 is a receiving (RX) device (or receiver). In the UL, the first device 110 is a TX device (or transmitter), and the second device 120 is an RX device (or receiver).

[0048] The communication in the communication environment 100 can be implemented according to any suitable (multiple) communication protocols, including but not limited to: first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G) and other cellular communication protocols, wireless local area network communication protocols (such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc.), and / or any other protocol currently known or to be developed in the future. In addition, the communication can utilize any suitable wireless communication technology, including but not limited to: code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), frequency division duplex (FDD), time division duplex (TDD), multiple input multiple output (MIMO), orthogonal frequency division multiple access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), and / or any other technology currently known or to be developed in the future.

[0049] In the network system, the power consumption of the UE depends on the length of the configured wake-up period, such as the paging cycle. In order to reduce power consumption, an extended discontinuous reception (eDRX) cycle with a large value is expected to be used, which may result in high latency and is not suitable for such services with both long battery life and low latency requirements. Therefore, an ultra-low power mechanism that can support low latency (e.g., lower than the eDRX latency) is required. Currently, the UE needs to wake up once regularly according to the DRX cycle, which dominates the power consumption in the cycle without signaling or data traffic. If the UE can wake up only when it is triggered (e.g., paging), the power consumption can be significantly reduced. This can be achieved by using a wake-up signal (WUS) to trigger the main radio and a separate receiver that has the ability to monitor the wake-up signal with ultra-low power consumption. The main radio works for data transmission and reception and can be turned off or set to deep sleep unless it is turned on. The power consumption for monitoring the wake-up signal depends on the WUS design and the hardware module of the wake-up receiver for signal detection and processing.

[0050] However, WUS may not be provided by the network in every cell or every frequency. This may affect the normal communication and use of the UE. For example, a UE supporting WUS may not know which cell or frequency also supports WUS. Therefore, the UE may not be able to utilize WUS provided by different cells, for example, in cell reselection.

[0051] Working principles and example signaling for communication

[0052] According to some example embodiments of the present disclosure, a solution for cell reselection enhancement is provided. In this solution, a UE receives cell reselection information from a gNB that provides a source cell for the UE, and the cell reselection information indicates a set of candidate cells or a set of candidate frequencies for cell reselection. The UE receives auxiliary information for cell reselection from the gNB, and the auxiliary information indicates at least one frequency or at least one neighbor cell to which a wake-up signal is applied, and the set of candidate cells or the set of candidate frequencies include at least one neighbor cell or at least one frequency. Accordingly, the UE can perform cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies based on the cell reselection information and the auxiliary information. In this way, the gNB is able to direct a UE supporting WUS to an appropriate cell or frequency to which the WUS is applied. In this way, power consumption is reduced while ensuring latency and mobility performance.

[0053] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0054] FIG. 2A to FIG. 2B 200 and 201 illustrate example operations of a WUS-enabled UE according to some example embodiments of the present disclosure. The WUS-enabled UE may be, for example, Figure 1 The first device 110 is shown. In addition, Figure 1 In the example, the fourth device 140 may be a common UE that does not support WUS.

[0055] The first device 110 is equipped with a main radio 210 and a separate ultra-low power wake-up receiver 220 (hereinafter may also be referred to as WUR 220). The main radio 210 may be an NR transceiver, which may be operated in sleep mode, or sometimes even turned off for energy saving purposes. In some example embodiments, the main radio 210 may be activated only upon receiving a WUS from the serving cell 102. For example, the second device 120 may trigger the first device 110 to wake up in an event-driven manner. In this case, the second device 120 may send a special WUS to the first device 110, which is monitored by the WUR 220.

[0056] like Figure 2AAs shown, if WUR 220 receives a WUS, WUR 220 can trigger a wake-up of the primary radio 210 and communication can begin. Figure 2B As shown, the main radio 210 is in an off mode or remains in a deep sleep mode. In some example embodiments, the WUR 220 can operate in an always-on manner with very low power consumption. Since the WUR is only capable of receiving the WUS, the WUR 220 may consume significantly less power than the main radio 210.

[0057] Reference now Figure 3 , which shows a flowchart of a process 300 for cell reselection according to some example embodiments of the present disclosure. Figure 3 As shown, process 300 involves at least first device 110, second device 120, and third device 122. For discussion purposes, reference is made to Figure 1 300 is described below. Figure 3 A first device 110, a second device 120, and a third device 122 are shown, but it is understandable that there may be multiple terminal devices performing similar operations as described below with respect to the first device 110, and there may be multiple network devices performing similar operations as described below with respect to the second device 120 or the third device 122.

[0058] In the communication network 100, the cells 102 to 106 and the corresponding frequencies may be different with or without WUS applied. As previously described, the second device 120 acting as a source base station may broadcast cell reselection information in the cell 102, for example, via the SIB. In order to facilitate the cell reselection process and take into account the different link budgets used for WUS, the second device 120 may obtain 305 at least one indication of at least one frequency or at least one neighbor cell to which WUS is applied. Alternatively, the second device 120 may obtain such an indication from any other network device in the RAN.

[0059] The second device 120 sends 310 cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection. The cell reselection information may be carried in network broadcast information (eg, SIB).

[0060] exist Figure 1 In the example of , the set of candidate cells or the set of candidate frequencies may include cells 104 and 106 and their corresponding frequencies. In some example embodiments, the cell reselection information may indicate a set of cell reselection priorities for the set of candidate cells or the set of candidate frequencies.

[0061] The second device 120 sends 315 auxiliary information for cell reselection, the auxiliary information indicating at least one frequency or at least one neighbor cell. The set of candidate cells or the set of candidate frequencies includes the at least one neighbor cell or the at least one frequency. Figure 1 In the example of FIG. 1 , WUS is applied to the neighbor cell 104 and / or the corresponding frequency.

[0062] The first device 110 performs 320 a cell reselection evaluation on at least a portion of the set of candidate cells or a set of candidate frequencies based on the cell reselection information and the auxiliary information. For example, the first device 110 may perform measurements on at least a portion of the set of candidate cells or a set of candidate frequencies. For example, the first device 110 may compare the measurements and / or measurement results on at least a portion of the set of candidate cells or a set of candidate frequencies with the measurements and / or measurement results of other cells or frequencies (e.g., a serving cell, an intra-frequency / inter-frequency, a set of cells that do not belong to the set of candidate cells, and / or a set of frequencies that do not belong to the set of candidate frequencies).

[0063] In some example embodiments, the assistance information may be carried via dedicated signaling (eg, a radio resource control (RRC) message).For example, in the case where the first device 110 is directed to RRC_IDLE mode or RRC_INACTIVE mode, the assistance information may be carried in an RRC release message.

[0064] Alternatively, in some example embodiments, the auxiliary information may be carried in network broadcast information (e.g., SIB). For example, an existing SIB may be reused to carry the auxiliary information. For another example, a new SIB may be used to specifically carry the auxiliary information. Therefore, the scope of the present disclosure is not limited in this respect.

[0065] In some example embodiments, the assistance information may be in the form of a list of cells or frequencies to which WUS is applied. Figure 1 In the example of , the auxiliary information may indicate the cell 104 or its corresponding frequency.

[0066] In some example embodiments, the assistance information for cell reselection carried in dedicated signaling may take precedence over the assistance information for cell reselection carried in broadcast signaling. In this case, the first device 110 may perform cell reselection evaluation based on the assistance information via dedicated signaling, while ignoring the assistance information via broadcast signaling.

[0067] In some example embodiments, the assistance information for cell reselection carried in the broadcast signaling may take precedence over the assistance information for cell reselection carried in the dedicated signaling. In this case, the first device 110 may perform cell reselection evaluation based on the assistance information via the broadcast signaling, while ignoring the assistance information via the dedicated signaling.

[0068] In some example embodiments, in the case where the first device 110 is directed to the RRC_IDLE mode or the RRC_INACTIVE mode, the assistance information for cell reselection carried in the dedicated signaling may be prioritized only in the cell that was the primary cell of the first device 110. Otherwise, the assistance information for cell reselection carried in the broadcast signaling may be prioritized.

[0069] In some example embodiments, the second device 120 may provide different assistance information to different terminal devices. For example, the assistance information may be associated with a public land mobile network (PLMN). In other words, the assistance information may be provided specific to the PLMN.

[0070] In some example embodiments, first device 110 may determine a priority of the set of candidate cells or a set of candidate frequencies based on at least one of the cell reselection information and the auxiliary information. Specifically, first device 110 supporting WUS ranks the frequencies to which WUS is applied, and the frequencies to which WUS is applied have a higher priority than other frequencies to which WUS is not applied. For example, the frequency corresponding to cell 104 may be ranked as the highest priority for cell reselection.

[0071] In some example embodiments, the assistance information may include separate absolute priorities for frequencies for which WUS is applied. These absolute priorities may be applied only by UEs supporting WUS (i.e., first device 120). In addition, UEs supporting WUS may ignore conventional absolute priorities for frequencies for which absolute priorities for WUS are provided.

[0072] Additionally, or alternatively, in some example embodiments, the first device 110 may apply at least one offset priority to the absolute priority of each frequency to which WUS is applied, as indicated by the auxiliary information. For example, in the case where a frequency supports WUS, the first device 110 may determine the target priority of the frequency by increasing the absolute priority value of the frequency by an offset priority (such as one, two, etc.). In other words, the priority of a frequency supporting WUS may be different for a UE supporting WUS and a UE not supporting WUS.

[0073] In some example embodiments, an offset value for cell ranking is applied by first device 110 for at least one frequency supporting WUS. The offset value may include, but is not limited to, reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), offset, or multiples thereof, etc.

[0074] In some example embodiments, a cell quality threshold (eg, Qrxlevmin) for cell reselection may be adjusted based on an offset value. For example, first device 110 may increase or decrease the offset value.

[0075] In some example embodiments, the cell quality may be adjusted based on an offset value. For example, the offset value may be used to consider the cell quality for cell reselection as better or worse than the measured cell quality.

[0076] In some example embodiments, the offset value may be provided by second device 120, for example, via broadcast signaling (eg, SIB) or dedicated signaling (eg, RRC).

[0077] In some example embodiments, the offset value may be provided for a specific frequency or cell.Alternatively, or additionally, the offset value may be provided commonly for each cell supporting WUS.

[0078] In some example embodiments, the offset value may be pre-determined at first device 110 and second device 120. For example, the offset value may be pre-configured by second device 120, or alternatively, specified in a relevant standard. In this way, the UE may determine at least one frequency or at least one neighbor cell to which WUS is applied based on the auxiliary information. The UE may then apply at least one offset value for cell reselection.

[0079] In some example embodiments, in a case where a first device 110 supporting WUS resides on a service cell supporting WUS (e.g., cell 102), a threshold for the first device 110 to start performing intra-frequency or inter-frequency measurements for cell reselection may be different from that for a fourth device 140 not supporting WUS because the link budget for WUS may be different from the budget for any other signaling.

[0080] In some example embodiments, the assistance information may correspond to the device type of the first device 110. For example, the device type may include one of a RedCap device or a non-RedCap device. In this case, the gNB may provide different assistance information to different types of UEs.

[0081] According to an exemplary embodiment of the present disclosure, information of at least one frequency or at least one neighbor cell to which WUS is applied may be provided to the UE. This information assists the UE supporting WUS in performing cell reselection evaluation. This information does not affect the cell reselection principle of the UE that does not support WUS. In this way, the energy efficiency of the UE may be improved. In addition, mobility performance is guaranteed by considering different link budgets for WUS.

[0082] It should be understood that some steps in process 300 are optional or can be omitted, and the order of the steps is given for illustrative purposes. Additionally, some steps can be performed in parallel with other steps. Therefore, embodiments of the present invention are not limited in this regard.

[0083] Figure 4 400 according to some exemplary embodiments of the present disclosure. The method 400 may be implemented at a terminal device, for example, referring to Figure 1 For the purpose of discussion, reference will be made to the first device 110. Figure 1 To describe the method 400. However, in some other embodiments, the method 400 may also be implemented at any other device, for example, a network device such as a gNB, a CU, a DU, etc. Therefore, the scope of the present disclosure is not limited in this respect.

[0084] At 410, the first device 110 receives cell reselection information from the second device 120 that provides the source cell 102 for the first device 110, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection. Figure 1 In the example of , the candidate cells may include cells 104 and 106, and the candidate frequencies may include at least one frequency at which cells 104 and 106 operate.

[0085] At 420, the first device 110 receives assistance information for cell reselection from the second device 120. In this case, the assistance information indicates at least one frequency or at least one neighbor cell to which WUS is applied, and the set of candidate cells or the set of candidate frequencies include at least one neighbor cell or at least one frequency.

[0086] In some example embodiments, the auxiliary information may be carried via at least one of the following: a SIB or an RRC message, such as an RRC release message. For example, an existing SIB may be reused to carry the auxiliary information. For another example, a new SIB may be used to specifically carry the auxiliary information. Therefore, the scope of the present disclosure is not limited in this respect.

[0087] In some example embodiments, the assistance information may include at least one of the following: a cell list including at least one cell to which WUS is applied, or a frequency list including at least one frequency to which WUS is applied.

[0088] In some example embodiments, the cell reselection information may be carried in a SIB. Additionally, or alternatively, the assistance information may be carried in an RRC message. In other words, the cell reselection information may be broadcast in the cell 102, while the assistance information may be provided to the UE via dedicated signaling.

[0089] At 430, the first device 110 performs a cell reselection evaluation on at least a portion of the set of candidate cells or a set of candidate frequencies based on the cell reselection information and the assistance information.

[0090] In some example embodiments, where the cell reselection information is carried in a SIB and the auxiliary information is carried in an RRC message, the first device 110 may determine that the information carried via the RRC message takes precedence over the information carried via the SIB. Based on this determination, the first device 110 may perform a cell reselection evaluation based on the auxiliary information. In this case, the first device 110 may ignore the information carried in the SIB.

[0091] Additionally, or alternatively, in some example embodiments, where the cell reselection information is carried in a SIB and the auxiliary information is carried in an RRC message, the first device 110 may determine that the information carried via the SIB takes precedence over the information carried via the RRC message. Also, based on this determination, the first device 110 may perform a cell reselection evaluation based on the cell reselection information. In this case, the first device 110 may ignore the information carried in the RRC message.

[0092] In some example embodiments, first device 110 may determine that source cell 102 is a PCell before first device 110 is directed to RRC_INACTIVE mode or RRC_IDLE mode. Based on determining that source cell 102 is a PCell, first device 110 may perform a cell reselection evaluation based on auxiliary information. Additionally, or alternatively, first device 110 may determine that source cell 102 is a cell other than a PCell. Based on determining that source cell 102 is not a PCell, first device 110 may perform a cell reselection evaluation based on cell reselection information.

[0093] In other words, when the first device 110 is directed to the RRC_IDLE mode or the RRC_INACTIVE mode, the auxiliary information via dedicated signaling can be prioritized only in the cell that is the PCell of the UE. Otherwise, the cell reselection information sent via broadcast signaling will be prioritized.

[0094] In some example embodiments, the assistance information may be associated with at least one PLMN. That is, different assistance information may be provided for UEs associated with different PLMNs.

[0095] In some example embodiments, the first device 110 may determine the priority of the set of candidate cells or the set of candidate frequencies based on at least one of the cell reselection information and the assistance information.

[0096] In some example embodiments, the first device 110 may rank at least one frequency or at least one neighbor cell (i.e., 104) to which WUS is applied, with the at least one frequency or at least one neighbor cell to which WUS is applied having a higher priority than the rest of a set of candidate cells or a set of candidate frequencies to which WUS is not applied (e.g., cell 106 in this example).

[0097] In some example embodiments, the cell reselection information may indicate a set of cell reselection priorities assigned for devices not supporting WUS, and the assistance information may indicate at least one cell reselection priority assigned for at least one frequency or at least one neighbor cell to which WUS is applied.

[0098] Additionally, in some example embodiments, first device 110 may determine that first device 110 supports WUS or has the capability to process WUS. Based on determining that first device 110 supports WUS, first device 110 may determine a priority of the set of candidate cells or a set of candidate frequencies based on the cell reselection information.

[0099] In some example embodiments, the cell reselection information may indicate a set of cell reselection priorities for the set of candidate cells or a set of candidate frequencies, and the assistance information may indicate at least one priority offset for at least one frequency or at least one neighbor cell to which WUS is applied.

[0100] Additionally, in some example embodiments, the first device 110 may determine that the first device 110 supports WUS. Based on the determination that the first device 110 supports WUS, the first device 110 may determine the priority of a set of candidate cells or a set of candidate frequencies by applying at least one priority offset to at least one frequency to which WUS is applied or at least one cell reselection priority of at least one neighboring cell. For example, a UE supporting WUS may increase the absolute priority value of a frequency by one, two, etc. when the frequency also supports WUS. In this case, the priority of a frequency supporting WUS may be different for UEs supporting WUS and UEs not supporting WUS.

[0101] In some example embodiments, the auxiliary information may be associated with at least one offset value used to sort at least one frequency or at least one neighbor cell to which WUS is applied, and the at least one offset value includes at least one of the following: at least one offset associated with RSRP, or at least one offset associated with RSRQ, or at least one offset associated with SINR, etc.

[0102] In some example embodiments, the cell reselection information may indicate a cell quality threshold, and the auxiliary information may be associated with at least one offset value, the at least one offset value being used to determine a target cell quality threshold for cell reselection. For example, the first device 110 may determine the target cell quality threshold by increasing the cell quality threshold by at least one offset value. Alternatively, in some other examples, the first device 110 may determine the target cell quality threshold by decreasing the cell quality threshold by at least one offset value.

[0103] In some example embodiments, the auxiliary information may be associated with at least one offset value for determining the target cell quality for cell reselection. For example, the first device 110 may determine whether the target cell quality for cell reselection is better than the measured cell quality by at least one offset value. Alternatively, in some other examples, the first device 110 may determine whether the target cell quality is worse than the measured cell quality by at least one offset value.

[0104] In some example embodiments, the assistance information may indicate at least one of: an offset value specific to a frequency or a neighbor cell to which WUS is applied, or a common offset value for at least one frequency or at least one neighbor cell to which WUS is applied.

[0105] In some example embodiments, at least one offset value may be pre-determined at first device 110 and second device 120. For example, at least one offset value may be pre-configured by second device 120, or alternatively, specified in a relevant standard. Thus, first device 110 may determine at least one frequency or at least one neighbor cell to which WUS is applied based on the auxiliary information. Based on determining at least one frequency or at least one neighbor cell to which WUS is applied, first device 110 may apply at least one offset value for cell reselection.

[0106] In some example embodiments where the first device 110 supports WUS and the source cell 102 applies WUS, the first device 110 may determine that a first threshold for triggering a cell reselection evaluation has been reached. Based on determining that the first threshold has been reached, the first device 110 may perform a cell reselection evaluation. In this case, the first threshold is different from a second threshold for cell reselection assigned to a device 112 that does not support WUS.

[0107] In some example embodiments, the auxiliary information may correspond to a device type of the first device 110. For example, the device type may include one of a RedCap device or a non-RedCap device.

[0108] In some example embodiments, one of the first device 110 or the second device 120 may include a terminal device (e.g., UE), and the other of the first device 110 or the second device 120 may include a network device (e.g., gNB).

[0109] Figure 5 1 shows a flow chart of an example method 500 according to an example embodiment of the present disclosure. The method 500 may be implemented at a network device, for example, referring to Figure 1 For the purpose of discussion, reference will be made to the second device 120. Figure 1 The method 500 is described in detail. However, in some other embodiments, the method 500 may also be implemented at any other device. Therefore, the scope of the present disclosure is not limited in this regard.

[0110] At 510 , the second device 120 obtains at least one indication of at least one frequency or at least one neighbor cell to which WUS is applied.

[0111] In some example embodiments, the at least one indication may be obtained from at least one third device providing at least one neighbor cell or operating at at least one frequency. Figure 1 In the example of FIG. 5 , the third device 122 providing the WUS-enabled neighbor cell 104 may send such an indication.

[0112] At 520, the second device 120 sends cell reselection information to the first device 110 in the source cell 102 provided by the second device 120, the cell reselection information indicating a group of candidate cells or a group of candidate frequencies for cell reselection. Figure 1 In the example of , the candidate cells may include cells 104 and 106, and the candidate frequencies may include at least one frequency at which cells 104 and 106 operate.

[0113] At 530, the second device 120 transmits assistance information for cell reselection to the first device 110. In this case, the assistance information may indicate at least one frequency or at least one neighbor cell, and the set of candidate cells or the set of candidate frequencies include at least one neighbor cell or at least one frequency.

[0114] In some example embodiments, the auxiliary information may be carried via at least one of the following: a SIB or an RRC message, such as an RRC release message. For example, an existing SIB may be reused to carry the auxiliary information. For another example, a new SIB may be used to specifically carry the auxiliary information. Therefore, the scope of the present disclosure is not limited in this respect.

[0115] In some example embodiments, the assistance information may include at least one of the following: a cell list including at least one cell to which WUS is applied, or a frequency list including at least one frequency to which WUS is applied.

[0116] In some example embodiments, the cell reselection information may be carried in a SIB. Additionally, or alternatively, the assistance information may be carried in an RRC message. In other words, the cell reselection information may be broadcast by the gNB, while the assistance information may be provided to the UE via dedicated signaling.

[0117] In some example embodiments, information carried via the RRC message may take precedence over information carried via the SIB. In this case, the first device 110 may determine the priority of the set of candidate cells or the set of candidate frequencies based on the auxiliary information, while ignoring the information carried in the SIB.

[0118] Alternatively, in some example embodiments, information carried via the SIB may take precedence over information carried via the RRC message. In this case, the first device 110 may determine the priority of the set of candidate cells or a set of candidate frequencies based on the cell reselection information, while ignoring the information carried in the RRC message.

[0119] In some example embodiments, the assistance information may be associated with at least one PLMN. That is, the gNB may provide different assistance information to UEs associated with different PLMNs.

[0120] In some example embodiments, the cell reselection information may indicate a set of cell reselection priorities assigned for devices not supporting WUS, and the assistance information may indicate at least one cell reselection priority assigned for at least one frequency or at least one neighbor cell to which WUS is applied.

[0121] In some example embodiments, the cell reselection information may indicate a set of cell reselection priorities for the set of candidate cells or a set of candidate frequencies, and the assistance information may indicate at least one priority offset for at least one frequency or at least one neighbor cell to which WUS is applied.

[0122] In some example embodiments, the auxiliary information may be associated with at least one offset value used to sort at least one frequency or at least one neighbor cell to which WUS is applied, and the at least one offset value includes at least one of the following: at least one offset associated with RSRP, or at least one offset associated with RSRQ, or at least one offset associated with SINR, etc.

[0123] In some example embodiments, the cell reselection information may indicate a cell quality threshold, and the assistance information may be associated with at least one offset value used to determine a target cell quality threshold for cell reselection.

[0124] In some example embodiments, the assistance information is associated with at least one offset value used to determine a target cell quality for cell reselection.

[0125] In some example embodiments, the assistance information may indicate at least one of: an offset value specific to a frequency or a neighbor cell to which WUS is applied, or a common offset value for at least one frequency or at least one neighbor cell to which WUS is applied.

[0126] In some example embodiments, at least one offset value may be pre-determined at first device 110 and second device 120. For example, at least one offset value may be pre-configured by second device 120, or alternatively, specified in a relevant standard. In this way, the UE may determine at least one frequency or at least one neighbor cell to which WUS is applied based on the auxiliary information. Then, the UE may apply at least one offset value for cell reselection.

[0127] In some example embodiments, the assistance information may correspond to the device type of the first device 110. For example, the device type may include one of a RedCap device or a non-RedCap device. In this case, the gNB may provide different assistance information to different types of UEs.

[0128] In some example embodiments, one of the first device 110 or the second device 120 may include a terminal device (e.g., UE), and the other of the first device 110 or the second device 120 may include a network device (e.g., gNB).

[0129] According to an example embodiment, it is supported to provide assistance information for cell reselection to a UE. Based on the assistance information, a UE supporting WUS can prioritize cells or frequencies that also support WUS. In this way, better energy efficiency can be achieved in the UE. In addition, the assistance information may only have an impact on UEs supporting WUS, without affecting UEs that do not support WUS. Mobility performance in the RAN is guaranteed by considering different link budgets for WUS.

[0130] In some example embodiments, the first device (e.g., first device 110) capable of performing method 400 may include a component for performing the corresponding steps of method 400. The component may be implemented in any suitable form. For example, the component may be implemented in the form of a circuit system or a software module. In some embodiments, the component may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to cause the execution of the device together with the at least one processor.

[0131] In some example embodiments, a first device includes: a component for receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection; a component for receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the set of candidate cells or the set of candidate frequencies including the at least one neighbor cell or the at least one frequency; and a component for performing cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies based on the cell reselection information and the auxiliary information.

[0132] In some example embodiments, the assistance information is carried via at least one of: a system information block, or a radio resource control message.

[0133] In some example embodiments, the assistance information includes at least one of: a cell list including at least one cell to which the wake-up signal is applied, or a frequency list including at least one frequency to which the wake-up signal is applied.

[0134] In some example embodiments, the cell reselection information is carried in a system information block and the assistance information is carried in a radio resource control message.

[0135] In some example embodiments, the means for performing cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies includes: means for determining that information carried via a radio resource control message takes precedence over information carried via a system information block; and means for performing cell reselection evaluation based on auxiliary information based on determining that information carried via a radio resource control message takes precedence over information carried via a system information block.

[0136] In some example embodiments, the means for performing cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies includes: means for determining that information carried via a system information block takes precedence over information carried via a radio resource control message; and means for performing cell reselection evaluation based on the cell reselection information based on determining that the information carried via the system information block takes precedence over the information carried via the radio resource control message.

[0137] In some example embodiments, the component for performing cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies includes: a component for determining that the source cell is a primary cell before the first device is directed to a radio resource control inactive mode or a radio resource control idle mode; and a component for performing a cell reselection evaluation based on auxiliary information based on determining that the source cell is the primary cell.

[0138] In some example embodiments, the means for performing cell reselection evaluation on at least a portion of the set of candidate cells or a set of candidate frequencies includes: means for determining that the source cell is a cell other than the primary cell; and means for performing cell reselection evaluation based on the cell reselection information based on determining that the source cell is a cell other than the primary cell.

[0139] In some example embodiments, the assistance information is associated with at least one public land mobile network.

[0140] In some example embodiments, the first apparatus further comprises means for determining a priority of the set of candidate cells or the set of candidate frequencies based on at least one of the cell reselection information and the assistance information.

[0141] In some example embodiments, the means for determining the priority of the set of candidate cells or the set of candidate frequencies includes: means for sorting at least one frequency or at least one neighbor cell to which the wake-up signal is applied, the at least one frequency or at least one neighbor cell to which the wake-up signal is applied having a higher priority than the rest of the set of candidate cells or the set of candidate frequencies to which the wake-up signal is not applied.

[0142] In some example embodiments, the cell reselection information indicates a set of cell reselection priorities assigned to devices that do not support the wake-up signal, and the assistance information indicates at least one cell reselection priority assigned to at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0143] In some example embodiments, the means for determining the priority of the set of candidate cells or the set of candidate frequencies includes: means for determining that the first device supports a wake-up signal; and means for determining the priority of the set of candidate cells or the set of candidate frequencies based on the cell reselection information based on the determination that the first device supports the wake-up signal.

[0144] In some example embodiments, the cell reselection information indicates a set of cell reselection priorities for the set of candidate cells or a set of candidate frequencies, and the assistance information indicates at least one priority offset for at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0145] In some example embodiments, the component for determining the priority of the set of candidate cells or the set of candidate frequencies includes: a component for determining that the first device supports the wake-up signal; and a component for determining the priority of the set of candidate cells or the set of candidate frequencies by applying at least one priority offset to at least one frequency to which the wake-up signal is applied or at least one cell reselection priority of at least one neighbor cell based on determining that the first device supports the wake-up signal.

[0146] In some example embodiments, the auxiliary information is associated with at least one offset value, which is used to sort at least one frequency or at least one neighbor cell to which the wake-up signal is applied, and the at least one offset value includes at least one of the following: at least one offset associated with a reference signal received power, or at least one offset associated with a reference signal received quality, or at least one offset associated with a signal to interference plus noise ratio.

[0147] In some example embodiments, the cell reselection information indicates a cell quality threshold, and the auxiliary information is associated with at least one offset value for determining a target cell quality threshold for cell reselection, and the means for performing the cell reselection evaluation includes one of: means for determining the target cell quality threshold by increasing the cell quality threshold by at least one offset value; or means for determining the target cell quality threshold by decreasing the cell quality threshold by at least one offset value.

[0148] In some example embodiments, the auxiliary information is associated with at least one offset value for determining a target cell quality for cell reselection, and the means for performing the cell reselection evaluation includes one of: means for determining whether the target cell quality for cell reselection is better than the measured cell quality by at least one offset value; or means for determining whether the target cell quality is worse than the measured cell quality by at least one offset value.

[0149] In some example embodiments, the assistance information indicates at least one of: an offset value specific to a frequency or a neighbor cell to which the wake-up signal is applied, or a common offset value for at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0150] In some example embodiments, at least one offset value is predetermined at the first device and the second device, and the component for performing the cell reselection evaluation includes: a component for determining at least one frequency or at least one neighbor cell to apply a wake-up signal based on auxiliary information; and a component for applying at least one offset value for cell reselection based on determining at least one frequency or at least one neighbor cell to apply a wake-up signal.

[0151] In some example embodiments, the first device supports a wake-up signal, and the source cell applies the wake-up signal, and the component for performing a cell reselection evaluation includes: a component for determining that a first threshold for triggering a cell reselection evaluation is reached; and a component for performing a cell reselection evaluation based on determining that the first threshold is reached, the first threshold being different from a second threshold for cell reselection allocated to a device that does not support a wake-up signal.

[0152] In some example embodiments, the assistance information corresponds to a device type of the first apparatus, and the device type comprises one of a reduced capability device or a non-reduced capability device.

[0153] In some example embodiments, one of the first device and the second device comprises a terminal device, and the other of the first device and the second device comprises a network device.

[0154] In some example embodiments, the second device (e.g., second device 120) capable of performing method 500 may include a component for performing the corresponding steps of method 500. The component may be implemented in any suitable form. For example, the component may be implemented in a circuit system or a software module. In some embodiments, the component may include at least one processor and at least one memory including computer program code. The at least one memory and the computer program code are configured to cause the execution of the device together with the at least one processor.

[0155] In some example embodiments, the second device includes: a component for obtaining at least one indication of at least one frequency or at least one neighbor cell to which a wake-up signal is applied; a component for sending cell reselection information to the first device in a source cell provided by the second device, the cell reselection information indicating a set of candidate cells or a set of candidate frequencies for cell reselection; and a component for sending auxiliary information for cell reselection to the first device, the auxiliary information indicating at least one frequency or at least one neighbor cell, the set of candidate cells or the set of candidate frequencies including at least one neighbor cell or at least one frequency.

[0156] In some example embodiments, the at least one indication is obtained from at least one third device providing at least one neighbor cell or operating at at least one frequency.

[0157] In some example embodiments, the assistance information is carried via at least one of: a system information block or a radio resource control message.

[0158] In some example embodiments, the assistance information includes at least one of: a cell list including at least one cell to which the wake-up signal is applied, or a frequency list including at least one frequency to which the wake-up signal is applied.

[0159] In some example embodiments, the cell reselection information is carried in a system information block and the assistance information is carried in a radio resource control message.

[0160] In some example embodiments, information carried via a radio resource control message takes precedence over information carried via a system information block.

[0161] In some example embodiments, information carried via system information blocks takes precedence over information carried via radio resource control messages.

[0162] In some example embodiments, the assistance information is associated with at least one public land mobile network.

[0163] In some example embodiments, the cell reselection information indicates a set of cell reselection priorities assigned to devices that do not support the wake-up signal, and the assistance information indicates at least one cell reselection priority assigned to at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0164] In some example embodiments, the cell reselection information indicates a set of cell reselection priorities for the set of candidate cells or a set of candidate frequencies, and the assistance information indicates at least one priority offset for at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0165] In some example embodiments, the auxiliary information is associated with at least one offset value, which is used to sort at least one frequency or at least one neighbor cell to which the wake-up signal is applied, and the at least one offset value includes at least one of the following: at least one offset associated with a reference signal received power, or at least one offset associated with a reference signal received quality, or at least one offset associated with a signal to interference plus noise ratio.

[0166] In some example embodiments, the cell reselection information indicates a cell quality threshold and the assistance information is associated with at least one offset value used to determine a target cell quality threshold for cell reselection.

[0167] In some example embodiments, the assistance information is associated with at least one offset value used to determine a target cell quality for cell reselection.

[0168] In some example embodiments, the assistance information indicates at least one of: an offset value specific to a frequency or a neighbor cell to which the wake-up signal is applied, or a common offset value for at least one frequency or at least one neighbor cell to which the wake-up signal is applied.

[0169] In some example embodiments, at least one offset value is predetermined at the first device and the second device.

[0170] In some example embodiments, the assistance information corresponds to a device type of the first apparatus, and the device type comprises one of a reduced capability device or a non-reduced capability device.

[0171] In some example embodiments, one of the first device and the second device comprises a terminal device, and the other of the first device and the second device comprises a network device.

[0172] Figure 6 600 is a simplified block diagram of a device 600 suitable for implementing an embodiment of the present disclosure. The device 600 may be provided to implement a communication device, such as Figure 1 The first device 110 or the second device 120 shown. As shown, the device 600 includes one or more processors 610, one or more memories 620 coupled to the processor 610, and one or more transmitters and / or receivers (TX / RX) 640 (i.e., communication module 640) coupled to the processor 610.

[0173] TX / RX 640 is used for bidirectional communication. TX / RX 640 has at least one antenna to facilitate communication. The communication interface may represent any interface required to communicate with other network elements.

[0174] Processor 610 may be of any type suitable for the local technology network, and may include, as non-limiting examples, one or more of: a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 600 may have multiple processors, such as application specific integrated circuit chips, which are time-slaved to a clock synchronized with a main processor.

[0175] The memory 620 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 624, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), and other magnetic storage devices and / or optical storage devices. Examples of volatile memories include, but are not limited to, random access memory (RAM) 622, and other volatile memories that do not persist during power outages.

[0176] Computer program 630 includes computer executable instructions that are executed by associated processor 610. Program 630 may be stored in ROM 624. Processor 610 may perform any suitable actions and processes by loading program 630 into RAM 622.

[0177] The embodiments of the present disclosure may be implemented by a program 630, so that the device 600 may execute the steps as shown in FIG. Figure 5 Any process of the present disclosure discussed. The embodiments of the present disclosure may also be implemented by hardware, or by a combination of software and hardware.

[0178] In some embodiments, the program 630 may be tangibly embodied in a computer-readable medium that may be included in the device 600 (such as in the memory 620) or in other storage devices accessible by the device 600. The device 600 may load the program 630 from the computer-readable medium to the RAM 622 for execution. The computer-readable medium may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. Figure 7 An example of a computer readable medium in the form of a CD or DVD is shown.The computer readable medium has a program 630 stored thereon.

[0179] Generally, the various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the boxes, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof.

[0180] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer executable instructions, such as instructions included in a program module, which are executed in a device on a target physical or virtual processor to perform the above referenced Figure 4 and Figure 5Method 400 or 500 described. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various embodiments, the functions of program modules can be combined or split between program modules as needed. Machine executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in both local and remote storage media.

[0181] The program code for executing the disclosed method can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code, when executed by the processor or controller, enables the function / operation specified in the flow chart and / or block diagram to be realized. The program code can be executed completely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or completely on a remote machine or server.

[0182] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include: signals, computer readable media, etc.

[0183] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. More specific examples of computer readable storage media will include: an electrical connection with one or more wires, a portable computer floppy disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0184] In addition, although the operations are described in a specific order, this should not be understood as requiring such operations to be performed in the specific order shown or in order, or performing all the operations shown, to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to a particular embodiment. Certain features described in the context of a separate embodiment may also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0185] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Instead, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A first device, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the first device to at least perform: receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating: a set of candidate cells or a set of candidate frequencies for cell reselection; receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the set of candidate cells or the set of candidate frequencies comprising: the at least one neighbor cell or the at least one frequency; as well as Based on the cell reselection information and the auxiliary information, a cell reselection evaluation is performed on at least a portion of the set of candidate cells or the set of candidate frequencies.

2. The first device according to claim 1, wherein the auxiliary information is carried via at least one of: System Information Block, or Radio Resource Control Message.

3. The first device according to claim 1, wherein the auxiliary information comprises at least one of the following: a cell list comprising at least one cell to which the wake-up signal is applied, or A frequency list is included including the at least one frequency at which the wake-up signal is applied. 4 . The first device of claim 1 , wherein the cell reselection information is carried in a system information block, and the assistance information is carried in a radio resource control message.

5. The first device of claim 4, wherein performing the cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies comprises: determining that information carried via the radio resource control message takes precedence over information carried via the system information block; as well as The cell reselection evaluation based on the assistance information is performed based on determining that the information carried via the radio resource control message takes precedence over the information carried via the system information block.

6. The first device of claim 4, wherein performing the cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies comprises: determining that information carried via the system information block takes precedence over information carried via the radio resource control message; as well as The cell reselection evaluation based on the cell reselection information is performed based on determining that the information carried via the system information block takes precedence over the information carried via the radio resource control message.

7. The first device of claim 4, wherein performing the cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies comprises: Before the first device is directed to a radio resource control inactive mode or a radio resource control idle mode, determining that the source cell is a primary cell; as well as Based on determining that the source cell is the primary cell, performing the cell reselection evaluation based on the auxiliary information.

8. The first device of claim 4, wherein performing the cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies comprises: Determining that the source cell is a cell other than a primary cell; as well as Based on determining that the source cell is the cell other than the primary cell, the cell reselection evaluation based on the cell reselection information is performed.

9. The first device of claim 1, wherein the assistance information is associated with at least one public land mobile network.

10. The first device of claim 1, wherein the at least one memory stores instructions that, when executed by the at least one processor, further cause the first device to perform: The priority of the group of candidate cells or the group of candidate frequencies is determined based on at least one of: the cell reselection information, and the auxiliary information.

11. The first device of claim 10, wherein determining the priority of the set of candidate cells or the set of candidate frequencies comprises: The at least one frequency or the at least one neighbor cell to which the wake-up signal is applied is sorted, and the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied has a higher priority than the rest of the group of candidate cells or the group of candidate frequencies to which the wake-up signal is not applied.

12. The first device according to claim 10, wherein the cell reselection information indicates: a set of cell reselection priorities assigned to devices that do not support the wake-up signal, and the auxiliary information indicates: at least one cell reselection priority assigned to at least one frequency to which the wake-up signal is applied or the at least one neighbor cell.

13. The first device of claim 12, wherein determining the priority of the set of candidate cells or the set of candidate frequencies comprises: Determining that the first device supports the wake-up signal; as well as Based on determining that the first device supports the wake-up signal, the priority of the set of candidate cells or the set of candidate frequencies is determined based on the cell reselection information.

14. The first device according to claim 10, wherein the cell reselection information indicates: a set of cell reselection priorities of the set of candidate cells or the set of candidate frequencies, and the auxiliary information indicates: at least one priority offset of the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied.

15. The first device of claim 14, wherein determining the priority of the set of candidate cells or the set of candidate frequencies comprises: Determining that the first device supports the wake-up signal; as well as Based on determining that the first device supports the wake-up signal, the priority of the set of candidate cells or the set of candidate frequencies is determined by applying the at least one priority offset to at least one cell reselection priority of the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied.

16. The first device according to claim 1, wherein the auxiliary information is associated with at least one offset value, the at least one offset value is used to sort the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied, and the at least one offset value comprises at least one of the following: at least one offset associated with a reference signal received power, or at least one offset associated with a reference signal reception quality, or At least one offset associated with a signal to interference plus noise ratio.

17. The first device according to claim 1, wherein the cell reselection information indicates a cell quality threshold, and the auxiliary information is associated with at least one offset value used to determine a target cell quality threshold for cell reselection, and The performing of the cell reselection evaluation comprises the following: determining the target cell quality threshold by increasing the cell quality threshold by the at least one offset value; or The target cell quality threshold is determined by reducing the cell quality threshold by at least one offset value.

18. The first device according to claim 1, wherein the assistance information is associated with at least one offset value used to determine a target cell quality for cell reselection, and The performing of the cell reselection evaluation comprises the following: determining whether the target cell quality for cell reselection is better than the measured cell quality by the at least one offset value; or It is determined whether the target cell quality is worse than the measured cell quality by at least one offset value.

19. The first device according to any one of claims 16 to 18, wherein the auxiliary information indicates at least one of the following: an offset value specific to the frequency or neighbor cell to which the wake-up signal is applied, or A common offset value for the at least one frequency or the at least one neighboring cell to which the wake-up signal is applied.

20. The first device according to any one of claims 16 to 18, wherein the at least one offset value is predetermined at the first device and the second device, and The performing of the cell reselection evaluation comprises: Determine the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied based on the auxiliary information; as well as Based on determining the at least one frequency or the at least one neighbor cell to apply the wake-up signal, the at least one offset value for cell reselection is applied.

21. The first device according to claim 1, wherein the first device supports the wake-up signal, and the source cell applies the wake-up signal, and The performing of the cell reselection evaluation comprises: determining that a first threshold for triggering the cell reselection evaluation is reached; as well as The cell reselection evaluation is performed based on determining that the first threshold is reached, the first threshold being different from a second threshold used for reselection of a cell to which a device that does not support the wake-up signal is assigned.

22. The first device of claim 1, wherein the auxiliary information corresponds to a device type of the first device, and the device type comprises one of a reduced capability device or a non-reduced capability device.

23. The first device according to claim 1, wherein one of the first device and the second device comprises a terminal device, and the other of the first device and the second device comprises a network device.

24. A second device, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least perform: Obtaining at least one frequency of an application wake-up signal or at least one indication of at least one neighbor cell; Sending cell reselection information to a first device in a source cell provided by the second device, where the cell reselection information indicates: a group of candidate cells or a group of candidate frequencies for cell reselection; as well as Auxiliary information for cell reselection is sent to the first device, where the auxiliary information indicates: the at least one frequency, or the at least one neighbor cell, and the group of candidate cells or the group of candidate frequencies includes: at least one neighbor cell, or the at least one frequency.

25. The second device of claim 24, wherein the at least one indication is obtained from at least one third device providing the at least one neighbor cell or operating on the at least one frequency.

26. The second device of claim 24, wherein the auxiliary information is carried via at least one of: System Information Block, or Radio Resource Control Message.

27. The second device according to claim 24, wherein the auxiliary information comprises at least one of the following: a cell list comprising at least one cell to which the wake-up signal is applied, or A frequency list is included including the at least one frequency at which the wake-up signal is applied.

28. The second device of claim 24, wherein the cell reselection information is carried in a system information block and the assistance information is carried in a radio resource control message.

29. The second device of claim 28, wherein information carried via the radio resource control message takes precedence over information carried via the system information block.

30. The second device of claim 28, wherein information carried via the system information block takes precedence over information carried via the radio resource control message.

31. The second device of claim 24, wherein the assistance information is associated with at least one public land mobile network.

32. The second device according to claim 24, wherein the cell reselection information indicates: a set of cell reselection priorities assigned to devices that do not support the wake-up signal, and the auxiliary information indicates: at least one cell reselection priority assigned to at least one frequency to which the wake-up signal is applied or the at least one neighbor cell.

33. The second device according to claim 24, wherein the cell reselection information indicates: a set of cell reselection priorities of the set of candidate cells or the set of candidate frequencies, and the auxiliary information indicates: at least one priority offset of the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied.

34. The second device according to claim 24, wherein the auxiliary information is associated with at least one offset value, the at least one offset value is used to sort the at least one frequency or the at least one neighbor cell to which the wake-up signal is applied, and the at least one offset value comprises at least one of the following: at least one offset associated with a reference signal received power, or at least one offset associated with a reference signal reception quality, or At least one offset associated with a signal to interference plus noise ratio.

35. The second device of claim 24, wherein the cell reselection information indicates a cell quality threshold, and the auxiliary information is associated with at least one offset value used to determine a target cell quality threshold for cell reselection.

36. The second device of claim 24, wherein the assistance information is associated with at least one offset value used to determine a target cell quality for cell reselection.

37. The second device according to any one of claims 34 to 36, wherein the auxiliary information indicates at least one of the following: an offset value specific to the frequency or neighbor cell to which the wake-up signal is applied, or A common offset value for the at least one frequency or the at least one neighboring cell to which the wake-up signal is applied.

38. The second device according to any one of claims 34 to 36, wherein the at least one offset value is predetermined at the first device and the second device.

39. The second device of claim 24, wherein the auxiliary information corresponds to a device type of the first device, and the device type comprises one of a reduced capability device or a non-reduced capability device.

40. The second device of claim 24, wherein one of the first device and the second device comprises a terminal device, and the other of the first device and the second device comprises a network device.

41. A method comprising: At a first device, receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating: a set of candidate cells or a set of candidate frequencies for cell reselection; receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating: at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the set of candidate cells or the set of candidate frequencies including: at least one neighbor cell or the at least one frequency; as well as Based on the cell reselection information and the auxiliary information, a cell reselection evaluation is performed on at least a portion of the set of candidate cells or the set of candidate frequencies.

42. A method comprising: At the second device, obtaining at least one frequency of applying the wake-up signal or at least one indication of at least one neighbor cell; Sending cell reselection information to a first device in a source cell provided by the second device, where the cell reselection information indicates: a group of candidate cells or a group of candidate frequencies for cell reselection; as well as Auxiliary information for cell reselection is sent to the first device, where the auxiliary information indicates: the at least one frequency, or the at least one neighbor cell, and the group of candidate cells or the group of candidate frequencies includes: at least one neighbor cell, or the at least one frequency.

43. A first device, comprising: means for receiving cell reselection information from a second device that provides a source cell for the first device, the cell reselection information indicating: a set of candidate cells or a set of candidate frequencies for cell reselection; A means for receiving auxiliary information for cell reselection from the second device, the auxiliary information indicating: at least one frequency or at least one neighbor cell to which a wake-up signal is applied, the set of candidate cells or the set of candidate frequencies comprising: at least one neighbor cell, or the at least one frequency; as well as Means for performing cell reselection evaluation on at least a portion of the set of candidate cells or the set of candidate frequencies based on the cell reselection information and the assistance information.

44. A second device, comprising: means for obtaining at least one indication of at least one frequency or at least one neighbor cell on which a wake-up signal is applied; means for sending cell reselection information to a first device in a source cell provided by the second device, the cell reselection information indicating: a set of candidate cells or a set of candidate frequencies for cell reselection; as well as A component for sending auxiliary information for cell reselection to the first device, the auxiliary information indicating: the at least one frequency, or the at least one neighbor cell, the group of candidate cells or the group of candidate frequencies including: at least one neighbor cell, or the at least one frequency.

45. A computer-readable medium comprising instructions stored thereon, the instructions being configured to cause an apparatus to at least perform the method according to claim 41 or 42.

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