Use of idle bits in short messages paging DCI to indicate prohibited cells or updated system information

Abstract

A terminal device receives a message from a network device on a paging channel, and determines whether the terminal device is allowed or restricted to access a cell or one or more beams of the cell associated with the network device based on the message. And the network equipment transmits the message to the terminal equipment on the paging channel. A terminal device receives a message from a network device on a paging channel and determines, based on the message, that the terminal device is allowed to employ relaxation measurements for access to a cell or one or more beams of a cell associated with the network device. And the network equipment transmits the message to the terminal equipment.

Description

Technical Field

[0001] Example embodiments herein relate generally to wireless communications, and more particularly, to a method and apparatus for accessing a communication network. Background Art

[0002] In cellular systems, wireless devices, often referred to as user equipment (UE), are paged from the wireless network for various reasons. For example, paging can bring the UE from an idle mode to a connected mode, such as to receive a voice call.

[0003] Sometimes paging may be used for purposes other than mobile origination or mobile termination of a call. Summary of the invention

[0004] This section is intended to include examples and is not intended to be limiting.

[0005] In an example embodiment, a method is disclosed, the method comprising: receiving, at a terminal device, a message from a network device on a paging channel. The method also comprises determining, based on the message, whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0006] Additional example embodiments include a computer program comprising instructions for performing the method of the preceding paragraph when the computer program is run on a device. A computer program according to this paragraph, wherein the computer program is a computer program product, comprising a computer readable medium carrying instructions embodied therein for use with the device. Another example is a computer program according to this paragraph, wherein the program can be directly loaded into an internal memory of a device.

[0007] An example apparatus includes one or more processors and one or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform: receiving, at a terminal device, a message from a network device on a paging channel; and determining, based on the message, whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0008] An example computer program product includes a computer-readable storage medium carrying instructions that, when executed by an apparatus, cause the apparatus to perform at least the following operations: at a terminal device, receive a message from a network device on a paging channel; and based on the message, determine whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0009] In another example embodiment, an apparatus includes means for: receiving, at a terminal device, a message from a network device on a paging channel; and determining, based on the message, whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0010] In an example embodiment, a method is disclosed that includes transmitting, by a network device to a terminal device, a message on a paging channel, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0011] Additional example embodiments include a computer program comprising instructions for performing the method of the preceding paragraph when the computer program is run on a device. A computer program according to this paragraph, wherein the computer program is a computer program product, comprising a computer readable medium carrying instructions embodied therein for use with the device. Another example is a computer program according to this paragraph, wherein the program can be directly loaded into an internal memory of a device.

[0012] An example apparatus includes one or more processors and one or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform: transmitting a message on a paging channel by a network device to a terminal device, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0013] An exemplary computer program product includes a computer-readable storage medium carrying instructions that, when executed by an apparatus, cause the apparatus to perform at least the following operations: a network device transmits a message on a paging channel to a terminal device, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0014] In another example embodiment, an apparatus includes means for transmitting, by a network device to a terminal device, a message on a paging channel, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of a cell associated with the network device.

[0015] In an example embodiment, a method is disclosed, the method comprising: receiving, at a terminal device, a message from a network device on a paging channel. The method also comprises determining, based on the message, whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0016] Additional example embodiments include a computer program comprising instructions for performing the method of the preceding paragraph when the computer program is run on a device. A computer program according to this paragraph, wherein the computer program is a computer program product, comprising a computer readable medium carrying instructions embodied therein for use with the device. Another example is a computer program according to this paragraph, wherein the program can be directly loaded into an internal memory of a device.

[0017] An example apparatus includes one or more processors and one or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform: receiving, at a terminal device, a message from a network device on a paging channel; and determining, based on the message, whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0018] An example computer program product includes a computer-readable storage medium carrying instructions that, when executed by an apparatus, cause the apparatus to perform at least the following operations: at a terminal device, receive a message from a network device on a paging channel; and based on the message, determine whether the terminal device is allowed to use relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0019] In another example embodiment, an apparatus includes means for: receiving, at a terminal device, a message from a network device on a paging channel; and determining, based on the message, whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0020] In an example embodiment, a method is disclosed that includes transmitting, at a network device, a message on a paging channel to a terminal device, the message indicating whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0021] Additional example embodiments include a computer program comprising instructions for performing the method of the preceding paragraph when the computer program is run on a device. A computer program according to this paragraph, wherein the computer program is a computer program product, comprising a computer readable medium carrying instructions embodied therein for use with the device. Another example is a computer program according to this paragraph, wherein the program can be directly loaded into an internal memory of a device.

[0022] An example apparatus includes one or more processors and one or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform: at a network device, transmit a message to a terminal device on a paging channel, the message indicating whether the terminal device is allowed to use relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0023] An example computer program product includes a computer-readable storage medium that carries instructions that, when executed by an apparatus, cause the apparatus to perform at least the following operations: at a network device, transmit a message to a terminal device on a paging channel, the message indicating whether the terminal device is allowed to use relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device.

[0024] In another example embodiment, an apparatus includes means for transmitting, at a network device, a message on a paging channel to a terminal device indicating whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of a cell associated with the network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 is a block diagram of one possible and non-limiting example system in which example embodiments may be implemented;

[0027] Figure 2 is an example of a bitmap used for a short message;

[0028] Figure 3 An example of beam-based cell access restriction is shown;

[0029] Figure 4 is a logic flow diagram for paging-based fallback indication performed by a user equipment;

[0030] Figure 4A is similar to Figure 4 Another logic flow diagram for paging-based fallback indication performed by a user equipment;

[0031] Figure 5 is a logic flow diagram for paging-based fallback indication executed by a network device and is related to Figure 4 correspond;

[0032] Figure 5A is similar to Figure 5 Another logic flow diagram for paging-based fallback indication performed by a network device and with Figure 4A correspond;

[0033] Figure 6 is a signaling diagram of an example of a UE missing a paging of a short message / paging message with access barring enabled / disabled;

[0034] Figure 7 is an example of a UE receiving paging after receiving access restriction;

[0035] Figure 8 Additional examples are shown; and

[0036] Fig. 9 Another example of UE adopting relaxed measurement is shown. DETAILED DESCRIPTION

[0037] Abbreviations that may be found in the description and / or drawings are defined at the end of the Detailed Description section below.

[0038] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. All of the embodiments described in this detailed description are example embodiments provided to enable persons skilled in the art to make or use the invention, and do not limit the scope of the invention which is defined by the claims.

[0039] When more than one figure reference numeral, word, or acronym is used in this specification using “ / ”, and as generally used in this specification, “ / ” may be interpreted as “or”, “and”, or “both”.

[0040] The example embodiments herein describe techniques for something (usually reflecting a title).After describing a system in which the example embodiments may be used, additional descriptions of these techniques are presented.

[0041] Steering Figure 1 , which shows a block diagram of one possible and non-limiting example system in which example embodiments may be implemented. User equipment (UE) 110, radio access network (RAN) node 170, and network element 190 are shown. Figure 1In the embodiment, a user equipment (UE) 110 wirelessly communicates with a wireless network 100. A UE is a wireless, typical mobile terminal device that can access a wireless network. The UE 110 includes one or more processors 120, one or more memories 125, and one or more transceivers 130 interconnected by one or more buses 127. Each of the one or more transceivers 130 includes a receiver Rx 132 and a transmitter Tx 133. The one or more buses 127 may be an address, data, or control bus, and may include any interconnection mechanism, such as a series of lines on a motherboard or integrated circuit, an optical fiber, or other optical communication equipment, etc. The one or more transceivers 130 are connected to one or more antennas 128. The one or more memories 125 include a computer program code 123. The UE 110 includes a control module 140, which includes one or two parts in 140-1 and / or 140-2, and the control module 140 may be implemented in a variety of ways. The control module 140 may be implemented in hardware as a control module 140-1, such as being implemented as part of one or more processors 120. The control module 140-1 may also be implemented as an integrated circuit or by other hardware, such as a programmable gate array. In another example, the control module 140 may be implemented as a control module 140-2, which is implemented as a computer program code 123 and executed by one or more processors 120. For example, one or more memories 125 and computer program code 123 may be configured to use one or more processors 120 to cause the user equipment 110 to perform one or more operations as described herein. The UE 110 communicates with the RAN node 170 via a wireless link 111.

[0042] RAN node 170 is a base station that provides access to wireless network 100 through wireless devices such as UE 110. RAN node 170 is generally referred to as gNB, but this is an example of a network device as described below. RAN node 170 can be a network device such as a base station for 5G, also known as New Radio (NR). In 5G, RAN node 170 can be a network device such as an NG-RAN node, which is defined as a gNB or ng-eNB. A gNB is a node that provides NR user plane and control plane protocol termination to the UE and is connected to the 5GC (e.g., (multiple) network elements 190) via an NG interface. An ng-eNB is a node that provides E-UTRA user plane and control plane protocol termination to the UE and is connected to the 5GC via an NG interface. An NG-RAN node may include multiple gNBs, and an NG-RAN node may also include a central unit (CU) (gNB-CU) 196 and (multiple) distributed units (DU) (gNB-DU), where DU 195 is shown. Note that a DU may include a radio unit (RU) or be coupled to and control the RU. The gNB-CU is a logical node that hosts the RRC, SDAP, and PDCP protocols of a gNB or the RRC and PDCP protocols of an en-gNB, and the CU controls the operation of one or more gNB-DUs. The gNB-CU terminates the F1 interface connected to the gNB-DU. The F1 interface is shown as reference 198, although reference 198 also shows a link between a remote element of the RAN node 170 and a centralized element of the RAN node 170, such as a link between a gNB-CU 196 and a gNB-DU 195. The gNB-DU is a logical node that hosts the RLC, MAC, and PHY layers of a gNB or en-gNB, and the operation of the gNB-DU is partially controlled by the gNB-CU. One gNB-CU supports one or more cells. One cell is supported by one gNB-DU. The gNB-DU terminates the F1 interface 198 connected to the gNB-CU. Note that the DU 195 is considered to include the transceiver 160, e.g., as part of the RU, but some such examples may have the transceiver 160 as part of a separate RU, e.g., under the control of and connected to the DU 195. The RAN node 170 may also be an eNB (evolved NodeB) base station for LTE (Long Term Evolution) or any other suitable base station.

[0043] The RAN node 170 includes one or more processors 152, one or more memories 155, one or more network interfaces (N / WI / F) 161, and one or more transceivers 160 interconnected by one or more buses 157. Each of the one or more transceivers 160 includes a receiver Rx 162 and a transmitter Tx 163. The one or more transceivers 160 are connected to one or more antennas 158. The one or more memories 155 include computer program code 153. The CU 196 may include (multiple) processors 152, memories 155, and network interfaces 161. Note that the DU 195 may also include its own memory / memories and (multiple) processors, and / or other hardware, but these are not shown.

[0044] The RAN node 170 includes a control module 150, which includes one or both parts in 150-1 and / or 150-2, and the control module 150 can be implemented in a variety of ways. The control module 150 can be implemented in hardware as the control module 150-1, such as being implemented as part of one or more processors 152. The control module 150-1 can also be implemented as an integrated circuit or implemented by other hardware (such as a programmable gate array). In another example, the control module 150 can be implemented as a control module 150-2, which is implemented as a computer program code 153 and executed by one or more processors 152. For example, one or more memories 155 and the computer program code 153 are configured to use one or more processors 152 to cause the RAN node 170 to perform one or more operations as described herein. Note that the functionality of the control module 150 can be distributed, such as distributed between the DU 195 and the CU 196, or implemented only in the DU 195.

[0045] One or more network interfaces 161 communicate over a network, such as via links 176 and 131. Two or more RAN nodes 170 communicate using, for example, link 176. Link 176 may be wired or wireless or both, and may implement, for example, an Xn interface for 5G, an X2 interface for LTE, or other suitable interfaces for other standards.

[0046] The one or more buses 157 may be address, data, or control buses, and may include any interconnection mechanism, such as a series of wires on a motherboard or integrated circuit, optical fiber or other optical communication equipment, a wireless channel, etc. For example, one or more transceivers 160 may be implemented as a remote radio head (RRH) 195 for LTE or a distributed unit (DU) 195 for a gNB implementation of 5G, other elements of the RAN node 170 may be physically located in a different location from the RRH / DU, and the one or more buses 157 may be partially implemented as, for example, a fiber optic cable or other suitable network connection to connect other elements of the RAN node 170 (e.g., central unit (CU), gNB-CU) to the RRH / DU 195. Reference 198 also indicates those suitable network link(s).

[0047] It should be noted that the description herein indicates that a "cell" performs a function, but it should be clear that it is the base station that forms the cell that will perform the function. A cell constitutes a part of a base station. That is, each base station can have multiple cells. For example, there can be three cells for a single carrier frequency and associated bandwidth, each cell covering one-third of a 360-degree area, so that the coverage area of ​​a single base station covers an approximate ellipse or circle. In addition, each cell can correspond to a single carrier and the base station can use multiple carriers. Therefore, if there are three 120-degree cells per carrier and there are two carriers, the base station has a total of 6 cells.

[0048] The wireless network 100 may include one or more network elements 190, which may include core network functions and provide connectivity to a data network 191 (such as a telephone network and / or a data communication network (e.g., the Internet)) via one or more links 181. Such core network functions for 5G may include access and mobility management functions (AMF) (multiple) and / or user plane functions (UPF) (multiple) and / or session management functions (SMF) (multiple). Such core network functions for LTE may include MME (mobility management entity) / SGW (serving gateway) functions. These are merely example functions that may be supported by (multiple) network elements 190, and it is noted that both 5G and LTE functions may be supported. The RAN node 170 is coupled to the network element 190 via a link 131. The link 131 may be implemented as, for example, an NG interface for 5G or an S1 interface for LTE or other suitable interfaces for other standards. The network element 190 includes one or more processors 175, one or more memories 171, and one or more network interfaces (N / WI / F) 180 interconnected by one or more buses 185. The one or more memories 171 include computer program code 173. The one or more memories 171 and the computer program code 173 are configured to work with the one or more processors 175 to cause the network element 190 to perform one or more operations.

[0049] Wireless network 100 may implement network virtualization, which is the process of combining hardware and software network resources and network functions into a single software-based managed entity, a virtual network. Network virtualization involves platform virtualization, often combined with resource virtualization. Network virtualization is classified as external, combining many networks or portions of networks into virtual units, or as internal, providing network-like functionality to software containers on a single system. Note that the virtualized entities produced by network virtualization are still implemented at some level using hardware such as processor 152 or processor 175 and memory 155 and memory 171, and such virtualized entities also produce technical effects.

[0050] Computer readable memories 125, 155, and 171 may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, flash memory, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Computer readable memories 125, 155, and 171 may be components for performing storage functions. Processors 120, 152, and 175 may be of any type suitable for the local technical environment 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. Processors 120, 152, and 175 may be components for performing functions such as controlling UE 110, RAN node 170, and other functions described herein.

[0051] Generally, various embodiments of the user device 110 as a terminal device may include, but are not limited to, a cellular phone such as a smart phone, a tablet computer, a personal digital assistant (PDA) with wireless communication capabilities, a portable computer with wireless communication capabilities, a vehicle with a modem device for wireless V2X (vehicle-to-everything) communication, an image capture device with wireless communication capabilities (such as a digital camera), a gaming device with wireless communication capabilities, a music storage and playback device with wireless communication capabilities, Internet equipment (including Internet of Things IoT devices) that allows wireless Internet access and possible browsing, IoT devices with sensors and / or actuators for automation applications of wireless communication tablets with wireless communication capabilities, and portable units or terminals integrating a combination of these functions.

[0052] Thus, having introduced a suitable but non-limiting technical background for the implementation of example embodiments, example embodiments will now be described in more detail. An overview of the technical field is now described.

[0053] Under high load, the wireless network 100 may wish to restrict access to cells to specific users, access classes, slices, or services. This is enabled in 5G via the Unified Access Control (UAC) framework specified in 3GPP TS22.261.

[0054] This framework applies to all UE states of NR (RRC_IDLE, RRC_INACTIVE and RRC_CONNECTED). NG-RAN 170 broadcasts barring control information associated with the access class and access identity (in case of network sharing, the barring control information can be set separately for each PLMN). The UE determines whether the access attempt is authorized based on the barring information broadcast for the selected PLMN and the selected access class and access identity for the access attempt:

[0055] 1) For NAS-triggered requests, NAS determines the access category and access identifier(s);

[0056] 2) For AS-triggered requests, RRC determines the access category and NAS determines the access identity(ies).

[0057] The gNB 170 handles access attempts with establishment causes “emergency”, “mps-priority access” and “mcs-priority access” (i.e., emergency calls, MPS, MCS subscribers) with high priority and responds to these access attempts with RRC Reject only under extreme network load conditions that could threaten the stability of the gNB.

[0058] Having introduced the UAC framework, we now introduce short messages. Short messages can be transmitted on the PDCCH using the P-RNTI, with or without an associated paging message via DCI (Downlink Control Information) format 1_0. Figure 2 As shown, the short message consists of an 8-bit bitmap.

[0059] In Rel-18, a new research project on network energy efficiency for NR was approved in RP-213554. The rationale and objectives of the work are outlined below. This is between the opening and closing quotes.

[0060] "4.1 The goal of SI or core WI or test WI

[0061] The objectives of the study are as follows:

[0062] 1. Definition of base station energy consumption model [RAN1]

[0063] Adapt the framework of the power consumption modeling and estimation method of TR38.840 to the base station side, including the relative energy consumption for DL ​​and UL (considering factors such as PA efficiency, number of TxRUs, base station load, etc.), sleep states and related transition times, and one or more reference parameters / configurations.

[0064] 2. Evaluation methods and definition of KPIs [RAN1]

[0065] ·The evaluation method should be designed to evaluate system-level network energy consumption and energy-saving gains, as well as evaluate / balance the impact on network and user performance (such as spectrum efficiency, capacity, UPT, latency, handover performance, call drop rate, initial access performance, SLA guarantee-related KPIs), energy efficiency and UE power consumption, complexity. The evaluation method should not focus on a single KPI and should reuse existing KPIs when applicable; when existing KPIs are found to be insufficient, new KPIs can be developed as needed.

[0066] Note: The WG will decide which KPIs to assess and how to assess them.

[0067] 3. Study and identify technologies on gNB and UE side to improve network energy saving in both BS transmission and reception, which may include:

[0068] How to achieve more efficient operation and finer-grained adaptation of transmission and / or reception dynamically and / or semi-statically in one or more network energy saving techniques in the time, frequency, space and power domains through potential support / feedback from UE and potential UE assistance information [RAN1, RAN2]

[0069] Information exchange / coordination at network interfaces [RAN3]

[0070] Note: Other technologies are not excluded"

[0071] This concludes the rationale and objectives of work on RP-213554.

[0072] For example, any change in unified access control parameters will require the serving cell to broadcast a system information (SI) change notification, followed by a modification period in which updated SI messages are broadcast. This is a rather cumbersome and time-consuming procedure and is not practically applied in very temporary peak load situations.

[0073] The UE receives an indication about the SI modification using a short message transmitted with the P-RNTI on the DCI. Because the UEs in a cell may be distributed in different beams of the cell, the SI change notification and the updated SI message will have to be broadcast on each beam of the cell, resulting in excessive overload / overhead, especially in scenarios where access control needs to be adopted dynamically. For example, if the load in the cell is high and access control is triggered to reduce the load, there is an increase in the cell load due to the described system information update procedure before the load reduction can begin. Once the load in the cell has been reduced, there is a second overhead of the SI change notification and update procedure to open the cell to more users.

[0074] In addition, after the UE receives the updated SI, the UE may or may not be able to access the cell depending on its access identity and access category. If the UE is unable to access the cell after the process, or if the UE is not interested in accessing the cell, this process may result in a reduction in UE battery life (i.e., higher power consumption), which could have been avoided.

[0075] Furthermore, SI updates are always applied within the entire cell, so the load within each individual beam cannot be controlled using UAC in NR.

[0076] Thus, there is the problem of how to provide efficient access restriction for UEs within a cell or within a beam of a cell. A beam may be a SSB (Synchronization Signal and PBCH (Physical Broadcast Channel) block).

[0077] Deferred SIB acquisition was introduced in Rel.8, allowing faster redirection from LTE to 3G via redirection for circuit handover fallback. In this configuration, the UE only needs to acquire some mandatory SIBs before trying to access the LTE cell, and other SIBs are provided to the UE by the 3G cell in connected mode.

[0078] Also conventionally, the UE always knows all basic information of the accessed cell (eg, via SIB). In contrast, in the specific example herein, the UE may defer the acquisition of basic / mandatory SIBs.

[0079] As an example, the exemplary embodiment provides a framework for proactively temporarily restricting access to cells / beams via paging and / or short messages, and as an additional embodiment, UE power saving is achieved by deferring the acquisition of SI updates. Figure 3 As shown, the framework enables cell access based on beams, Figure 3 An example of cell access restriction is shown. Figure 3 , a gNB 170 having a tower 330 with an antenna 158 (e.g., as an array of antenna elements) creates beam #1 310-1 and beam #2 310-2. Beam #1 310-1 creates a cell 320-1 that serves UE 110-1 and UE 110-2 or may be included in cell 320-1, and beam #2 310-2 creates a cell 320-2 that serves UE 110-3, UE 110-4, and UE 110-5 or may be included in cell 320-2. Cell access is allowed in cell 320-1 (see reference numeral 340), but in cell 320-2, cell access restriction using (multiple) short messages (see reference numeral 350) is implemented. That is, cell access is restricted in cell 320-2 (see reference numeral 360). As an example, a cell may consist of or include multiple beams. For example, cell 320-1 may include beam #1 310-1 and beam #2 310-2 serving UE 110-1 and UE 110-2 or may be composed of these beams. Alternatively, for example, cell 320-2 may include beam #1 310-1 and beam #2 310-2 serving UE 110-3, UE 110-4, and UE 110-5 or may be composed of these beams. Thus, (one or) two reference numerals 340 and 360 may be implemented on a per-beam basis rather than on a per-cell basis.

[0080] At a high level, the sample framework implements one or more of the following:

[0081] 1) Beam-specific or cell-specific cell access restrictions, e.g. Figure 3 shown.

[0082] 2) Actively enable or disable cell access restriction via short message / paging message. Short messages can be transmitted in paging occasions (PO) on the physical downlink control channel (PDCCH) using downlink control information (DCI), and the UE monitors possible paging reception. The paging message can be a paging record. The paging message can be included in the RRC message and can be transmitted on the physical downlink shared channel (PDSCH). The paging message can be scheduled or indicated on the PDCCH using the DCI in the PO, the UE monitors possible paging reception, and the UE attempts to decode the paging message in the PDSCH based on the possible paging reception.

[0083] 3) Network-controlled deferral of UE obtaining updated system information until the UE needs to access the cell, which can also be applied on a per-beam basis.

[0084] The approach proposed in this article can also be used in NW energy saving solutions, where beam / cell-level muting / cell / beam DTX / DRX is pursued.

[0085] It should be noted that according to the current specification, if the serving cell does not send a short message indicating the modification of the SI message (i.e., no system information change is performed), the UE can still re-acquire the SI message if some UEs do not have a valid version of these SI messages (e.g., the SI message is more than three hours old).

[0086] In another example embodiment, short message signaling may be used to indicate that the UE is allowed to adopt a relaxed measurement scheme, for example, for a cell beam. In this embodiment, the short message will indicate (see box 380) whether the beam allows relaxed measurements in reference numeral 340 / 360. These relaxed measurements for specific beams (such as SSB beams) may be adopted by the gNB when the gNB decides to adopt a power saving mode and, for example, reduce the number of active antenna elements used for beam transmission or reduce the frequency at which the beam is transmitted. Relaxed measurements may require the UE to perform measurement evaluations for relaxed beams in a different manner. For example, the UE may adopt a different threshold than normal when evaluating the cell (re)selection process when determining that relaxed measurements are enabled. In addition, if the UE determination of the relaxed measurement indicates that this is only for a specific measurement occasion, the UE may report separate measurements for relaxed and non-relaxed measurements, or the UE may report a single measurement indicating the use of relaxed measurements. For relaxed measurements, the UE may apply different measurement criteria for beams or cells of a cell than for other beams or other cells.

[0087] Combination Figure 4 Further details are described in part, Figure 4 is a flow chart of logic executed by a user equipment for paging based fallback indication. Figure 4 Also shown are operations of one or more example methods according to example embodiments, results of execution of computer program instructions embodied on a computer readable memory, functions performed by logic implemented in hardware, and / or interconnected components for performing functions. Figure 4 The blocks in are performed by UE 110, for example, at least partially under the control of control module 140.

[0088] UEs that are in an idle or inactive state (see block 405) may be indicated using a short message on the DCI or a paging message transmitted on the PDSCH. In block 410, the UE monitors the paging channel, for example, to receive this information. The UE 110 determines in block 415 whether the short (or paging) message includes an indication that access is allowed or not allowed. This is also considered a restriction, for example, access that is not allowed is a restriction, while access that is allowed is not restrictive. Note that although short messages are primarily discussed using these figures, paging messages may be used instead.

[0089] One possibility is that access to the cell is restricted or not allowed, such as "not allowed" in block 415. In this case, the UE may wait for an indication of a cell that is allowed to access (see reference numeral 416, where the flow proceeds to block 410), or the UE may start a timer, such as T390, etc., which has a value derived based on its most recently acquired SI information. For example, the timer value may be defined based on the following formula: T390 = (0.7 + 0.6 * rand) * uac_BarringTime, where:

[0090] rand is a random number drawn from a uniform distribution in the range 0 to 1;

[0091] uac_BarringTime is derived from the latest SI value stored for the serving cell in the UE. Any other parameters may also be applied.

[0092] This is shown by block 425. In block 430, the UE does not consider cell access to be allowed until a timer (eg, T390) expires or a short message indication that access is allowed is received.

[0093] In one option, the UE may derive (see block 427) a random backoff time between 0 (zero) and BACKOFF_TIME, during which the UE is not allowed to attempt to access the cell if RRC setup is triggered. The BACKOFF_TIME may be provided by the NW using broadcast signaling, or provided within a paging message / short message providing a backoff indication. In one option, an index to the BACKOFF_TIME may be indicated in the short message / paging message, which points to a predefined BACKOFF_TIME defined in the specification or broadcast by the NW.

[0094] Another possibility is that access to the cell is allowed, indicated by "Allowed" at block 415. In this case, in response to receipt of the indication, the UE 110 stops the timer (e.g., T390 timer, etc.) if it is running or if the timer is applied, and the UE assumes that the cell is available for access and can access the cell if necessary. See block 440.

[0095] In one embodiment, for the above two scenarios, if the short message / paging message indicates a change in the system information message (see box 445), the UE can postpone the acquisition of the updated SI until the UE needs to access the cell. In this case, the UE should re-acquire the modified SI before the call attempt. See box 450.

[0096] In one embodiment, the proposed framework can utilize the idle bits in the DCI of the short message to enable the above indication. That is, the UE will check the current idle bits for the new indication of block 415. This is shown by block 417. Block 417 also indicates that the current idle bits can be used additionally or alternatively for block 445.

[0097] In another option, NW indicates the waiting time in a short message / paging message that the UE waits before attempting to access the cell. Figure 4A , Figure 4A is similar to Figure 4 Another logic flow diagram for paging-based fallback indication performed by user equipment. In block 426, the UE receives a waiting time, for example in a short message / paging message from block 415. The UE waits in block 431 because the UE delays an attempt to access the cell until after the waiting time expires.

[0098] Steering Figure 5 , which is a logic flow diagram for paging-based fallback indication executed by a network device, and which is similar to Figure 4 Corresponding. That is, although Figure 4 The actions taken by the UE are shown, but Figure 5 Operations occurring by a network device (e.g., gNB 170) on the other side of the communication are shown. Figure 5 Also shown are operations of one or more example methods according to example embodiments, results of execution of computer program instructions embodied on a computer readable memory, functions performed by logic implemented in hardware, and / or interconnected components for performing functions. Figure 5 The boxes in are performed by gNB 170 (or another network device), for example, at least partially under the control of control module 150.

[0099] In block 505, gNB 170 determines whether a beam or cell is restricted, e.g., due to a peak load condition on the beam / cell. That is, the NW (in this case, gNB 170) determines that it wants to restrict access to a particular beam or cell of a cell, and this determination is applied to all UEs under the beam / cell. In block 510, gNB 170 sends a short (or paging) message in a paging channel to the UE(s) in the beam / cell. What happens next is based on (block 515) whether the short message includes an indication that access is allowed or not allowed.

[0100] If access is not allowed (e.g., restricted) in block 515, the gNB 170 expects (block 525) a time delay before the (multiple) UEs attempt to access the cell. Note that if there are multiple UEs, there may be different time delays for the UEs because the random wait time determined by each UE is very likely different. At some time (e.g., defined in part by the random wait time determined by the individual UE), the UE should attempt to access the cell. In block 530, the gNB responds to the UE's access to the cell, for example by performing normal access functions.

[0101] If access is allowed (e.g., not restricted) in block 515, then in block 540, gNB 170 responds to one or more UEs accessing the cell, e.g., by performing normal access functions. UE(s) may access the cell at any time.

[0102] In block 545, gNB 170 determines whether to send a short message with an SI modification indication to the UE(s). If so (block 545=yes), gNB 170 sends the message and communicates with the UE(s) so that when the UE(s) reconnect to the NW, the UE(s) reacquire the SI.

[0103] In one embodiment, the proposed framework can utilize the idle bits in the short message bitmap to implement the above indication. That is, the gNB 170 will modify the current idle bits for the new indication of block 515. This is shown by block 517, and this can be applied to blocks 515 and / or 545.

[0104] As previously mentioned, the UE can derive (see Figure 4 In block 515, BACKOFF_TIME may be provided by the NW using broadcast signaling (see reference numeral 2 of 527) or within a paging message / short message providing a fallback indication (see reference numeral 1 of 527) (see block 527).

[0105] Figure 5A is similar to Figure 5 Another logical flow diagram for paging-based fallback indication performed by a network device and the figure is Figure 4A Corresponding. In this option, the NW indicates the waiting time in the short message / paging message that the UE waits before attempting to access the cell. See box 526, where the gNB 170 sends the waiting time, for example, in the short message / paging message from box 515. In box 527, the gNB 170 expects one or more UEs to delay attempts to access the cell until after the corresponding waiting time expires. In box 531, the gNB 170 responds to one or more UEs accessing the cell, for example in normal access mode.

[0106] In one embodiment, the UE may miss paging for short messages / paging messages with access restriction enabled / disabled. In these cases, when the short message / paging message restricts access, the UE may be denied or not allowed to access the network when the UE attempts to transition to RRC connected mode. For scenarios where the missed paging indication is a notification that access to the network is allowed, the T390 timer (or similar timer) ensures that the UE does not stay in an incorrect state forever.

[0107] Figure 6 6 is a signaling diagram of an example of a UE missing a paging of a short message / paging message with access restriction enabled / disabled. In signaling 610, gNB 170 sends a short message (e.g., paging) with an indication that temporary access is not allowed. The "X" indicates that UE 110 does not receive this. The UE sends a setup request or RRC resume request in signaling 620. gNB 170 responds in signaling 630 with an RRC reject because the UE should not access the beam / cell at this time.

[0108] In one embodiment, if the UE receives a page from the NW requesting the UE to establish a connection with the NW, the access restriction may be ignored and the UE may initiate a call with an access cause of mobile termination. Figure 7 is an example of a UE receiving paging after receiving access restriction. Figure 7 , UE 110 executes Figure 4 Box 425 or Figure 4AThis occurs in block 710. That is, the UE is not allowed to access the beam / cell for a certain time (according to blocks 425 / 426). In block 720, the UE receives (within a time period (such as a waiting time) for delayed access) a short message (e.g., paging) for mobile terminated (MT) access, and in block 730, the UE ignores the access restriction and accesses the beam / cell for MT access.

[0109] Other examples Figure 8 It is noted that any flowchart in this article (e.g. Figure 7-Figure 9 ) illustrate the operation of one or more example methods according to example embodiments, the result of execution of computer program instructions embodied on a computer-readable memory, functions performed by logic implemented in hardware, and / or interconnected components for performing functions. The blocks in these figures are performed by UE 110 or a network device such as gNB 170.

[0110] In one embodiment, the NW may also indicate in the options indicated in the paging message which access categories the restriction applies to / does not apply to. See block 820. In one embodiment, the restriction may be applied by the NW only to certain access categories, e.g., emergency calls are allowed, but other access categories are restricted for certain beams / cells. See block 820.

[0111] In one embodiment, using the proposed framework, the serving cell may group UEs with similar access categories in the same paging cycle, for example, to reduce the load associated with short messages / paging messages for cell access restrictions. That is, the NW may not provide such restrictions in each PO (paging occasion) within a cell / beam.

[0112] In addition, as described above, the serving cell may broadcast the described indication only on specific beams where there are overloaded cells to offload those beams. See block 840. For example, for a TDD deployment where MU-MIMO is employed, if a specific beam is overloaded with users, the serving cell may proactively preempt new users to block access to the cell via that beam.

[0113] In one embodiment, the restriction is applied beam-specifically, i.e., the UE is restricted / allowed to access the cell via the beam for which the indication(s) are received. See block 850. In one option, the NW may indicate whether the indication is applied on a per-beam basis or a per-cell basis. See block 860.

[0114] Another example is shown by block 870. In this example, the network sends a paging message to inform the UE that access to the cell is restricted for a specific beam of the cell, and the beam via which the UE receives the paging message may or may not be restricted. That is, the beam used to send the paging message may not be one of the restricted specific beams.

[0115] In most examples herein, a single beam is used, which is indicated as either allowed access or as restricted access. Block 880 indicates another possibility, where one or more beams may be indicated as allowed or restricted. In other words, multiple specific beams may be indicated as restricted (or allowed).

[0116] Reference now Fig. 9 , which shows another example of a UE employing relaxed measurements. In this example, UE 110 (e.g., as a terminal device) is in an idle or inactive state in box 1. gNB 170 (e.g., as a network device) sends a short message (paging) with an indication to employ relaxed measurements, as indicated by signaling 2. The paging channel may include a paging opportunity (PO) on the PDCCH or PDSCH, as indicated by box 3. Box 3.a. indicates that the PDCCH may be used with a short message in the DCI. Alternatively (or additionally), box 3.b. indicates that the PDSCH may be used with a paging message. Note that box 3 and its subboxes 3.a and 3.b may be applied to other flowcharts and techniques described herein.

[0117] In block 4, UE 110 applies different measurement criteria (or other relaxed measurements) for beams or cells of a cell. As indicated in block 4.a., the different measurement criteria may be pre-configured at least before the signaling in 2 is received.

[0118] UE 110 reports the measurements in signaling 5. Block 5.a. indicates that the UE may indicate relaxed use of the measurement criteria in signaling 5. In block 6, the gNB uses the measurements in a technique known to those skilled in the art.

[0119] Without in any way limiting, interpreting or applying the scope of the claims appearing below, a technical effect of one or more example embodiments disclosed herein is that when a UE is not allowed to access a cell, the UE does not have to continuously acquire a modified SIB and can instead remain in DRX mode (or other energy saving state). Another technical effect of one or more example embodiments disclosed herein is that the example embodiments implement beam-based access restriction. Another technical effect of one or more example embodiments disclosed herein is that the examples allow a more dynamic framework for restricting access to a cell from a time perspective, taking into account the reduction in load from the perspective of the serving cell.

[0120] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0121] (a) hardware circuit implementation only (such as implementation in analog circuitry and / or digital circuitry only), and

[0122] (b) a combination of hardware circuitry and software, such as (where applicable): (i) a combination of analog and / or digital hardware circuitry and software / firmware, and (ii) any portion of hardware processor(s) (including digital signal processor(s)), software and memory(s) with software that work together to enable a device (such as a mobile phone or server) to perform various functions), and

[0123] (c) Hardware circuit(s) and or processor(s), such as microprocessor(s) or portion(s) of microprocessor(s), that require software (e.g., firmware) for operation, but the software may be absent when not required for operation.

[0124] This definition of circuitry applies to all uses of the term in this application, including any claims. As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit, or a processor (or multiple processors), or a portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers (for example and if applicable to a particular claim element) 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.

[0125] The embodiments herein may be implemented in software (executed by one or more processors), hardware (e.g., an application specific integrated circuit), or a combination of software and hardware. In an example embodiment, the software (e.g., application logic, an instruction set) is maintained on any of a variety of conventional computer-readable media. In the context of this document, a "computer-readable medium" may be any medium or component that can contain, store, communicate, propagate, or transmit instructions for use by or in conjunction with an instruction execution system, apparatus, or device, such as a computer, an example of which is a computer program product. Figure 1 Described and depicted in. Computer-readable media may include computer-readable storage media (e.g., memory 125, 155, 171 or other devices), which may be any medium or component that can include, store and / or transmit instructions for use by or in conjunction with an instruction execution system, apparatus or device (such as a computer). Computer-readable storage media do not include propagating signals.

[0126] If desired, the different functions discussed herein may be performed in different orders and / or simultaneously with each other. In addition, if desired, one or more of the above functions may be optional or may be combined.

[0127] Although various aspects of the invention are set out in the independent claims, further aspects of the invention comprise other combinations of features from the described embodiments and / or the dependent claims with features of the independent claims, and not just the combinations explicitly set out in the claims.

[0128] It is also noted herein that, although the above describes example embodiments of the invention, these descriptions should not be viewed in a limiting sense. Rather, several variations and modifications may be made without departing from the scope of the invention as defined in the appended claims.

[0129] The following abbreviations that may be found in the specification and / or drawings are defined as follows:

[0130] 3G Third Generation

[0131] 3GPP Third Generation Partnership Project

[0132] 5G Fifth Generation

[0133] 5GC 5G Core Network

[0134] AMF Access and Mobility Management Function

[0135] AS Access Layer

[0136] CU Central Unit

[0137] DCI Downlink Control Information

[0138] DRX Discontinuous Reception

[0139] DU Distributed Unit

[0140] eNB (or eNodeB) Evolved Node B (e.g., LTE base station)

[0141] EN-DC E-UTRA-NR Dual Connectivity

[0142] en-gNB or En-gNB provides the NR user plane and control plane protocol termination node to the UE and acts as a secondary node in EN-DC

[0143] E-UTRA Evolved Universal Terrestrial Radio Access, also known as LTE radio access technology

[0144] gNB (or gNodeB) is a base station for 5G / NR, which provides NR user plane and control plane protocol termination to UE and is connected to 5GC via NG interface.

[0145] I / F Interface

[0146] LTE Long Term Evolution

[0147] MAC Medium Access Control

[0148] MCS Mission Critical Services

[0149] MPS Multimedia Priority Service

[0150] MME Mobility Management Entity

[0151] MT Mobile Terminated

[0152] MU-MIMO Multi-User Multiple Input Multiple Output

[0153] NW Network

[0154] NAS Non-Access Stratum

[0155] ng or NG Next Generation

[0156] ng-eNB or NG-eNB Next Generation eNB

[0157] NR New Radio

[0158] N / W or NW network

[0159] PBCH Physical Broadcast Channel

[0160] PDCCH Physical Downlink Control Channel

[0161] PDCP Packet Data Convergence Protocol

[0162] PDSCH Physical Downlink Shared Channel

[0163] PHY Physical Layer

[0164] PLMN Public Land Mobile Network

[0165] PO Paging time

[0166] P-RNTI Paging-Radio Temporary Identifier

[0167] RAN Radio Access Network

[0168] Rel version

[0169] RLC Radio Link Control

[0170] RRH Remote Radio Head

[0171] RRC Radio Resource Control

[0172] RU Radio Unit

[0173] Rx Receiver

[0174] SDAP Service Data Adaptation Protocol

[0175] SGW Service Gateway

[0176] SI System Information

[0177] SIB System Information Block

[0178] SMF session management functions

[0179] SSB synchronization signal and PBCH (Physical Broadcast Channel) block

[0180] TS Technical Specifications

[0181] Tx Transmitter

[0182] UAC Unified Access Control

[0183] UE User Equipment (e.g., wireless, typically mobile device)

[0184] UPF User Plane Function

Claims

1. A method comprising: At the terminal device, receiving a message from the network device on a paging channel; as well as Based on the message, it is determined whether the terminal device is allowed or restricted from accessing a cell associated with the network device or one or more beams of the cell. 2 . The method of claim 1 , wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

3. The method according to claim 1 or 2, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

4. The method of claim 1 or 2, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

5. The method according to any one of claims 1 to 4, wherein at least during the receiving and determining, the terminal device is in an idle state or an inactive state.

6. The method according to any one of claims 1 to 5, wherein: Receiving the message comprises receiving the message from the network device via at least one beam of the cell; and The determining further comprises determining, based on the message, whether the terminal device is allowed or restricted from accessing the cell via the one or more beams of the cell.

7. The method of claim 6, wherein the at least one beam of the cell on which the message is received is one of: at least one beam different from the one or more beams; or at least one beam that is one of the one or more beams.

8. The method according to claim 6 or 7, further comprising: Based on the determination, the cell is accessed via the one or more beams of the cell.

9. The method according to any one of claims 1 to 8, further comprising: In response to the message, acquisition of system information of the cell is managed for accessing the cell or the one or more beams of the cell.

10. The method according to claim 9, further comprising: Based on the message, the acquisition of the system information of the cell is postponed or delayed.

11. The method according to claim 9, further comprising: Regardless of the determination, the system information of the cell is acquired.

12. The method according to any one of claims 1 to 11, wherein the message indicates a change or update in the system information.

13. The method according to claim 12, further comprising: Based on the message, the acquisition of the change or update of the system information of the cell is postponed or delayed.

14. A method comprising: A message is transmitted by a network device to a terminal device on a paging channel, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of the cell associated with the network device.

15. The method of claim 14, wherein the paging channel comprises one or more paging occasions to the terminal device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

16. The method according to claim 14 or 15, further comprising: determining a change or update of system information of the cell; as well as The change or update in the message is indicated to the terminal device.

17. The method according to claim 16, further comprising: The message is used to manage or control the terminal device to obtain the change or update of the system information.

18. The method according to claim 16 or 17, further comprising: The message is used to manage or control the terminal device to obtain the system information of the cell.

19. The method according to any one of claims 14 to 18, wherein the terminal device is in an idle state or an inactive state at least when the network device performs the transmission.

20. The method according to any one of claims 14 to 19, wherein: transmitting comprises transmitting the message via at least one beam of the cell; and The method further comprises indicating to the terminal device via the one or more beams of the cell whether the terminal device is allowed or restricted from accessing the cell.

21. The method of claim 20, wherein the at least one beam of the cell on which the message is transmitted is one of: at least one beam different from the one or more beams; or at least one beam that is one of the one or more beams.

22. A method comprising: At the terminal device, receiving a message from the network device on a paging channel; as well as Based on the message, it is determined whether the terminal device is allowed to employ relaxed measurements for accessing a cell associated with the network device or one or more beams of the cell.

23. The method of claim 22, wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

24. The method of claim 22 or 23, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

25. The method of claim 22 or 23, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

26. The method according to any one of claims 22 to 25, wherein at least during the receiving and determining, the terminal device is in an idle state or an inactive state.

27. A method according to claims 22 to 26, wherein based on the determination of the relaxed measurement for the cell or the one or more beams of the cell, the terminal device applies a different measurement standard for the one or more beams of the cell or the cell than for other beams or other cells.

28. The method according to claim 27, wherein the different measurement standards are preconfigured by the network device for the terminal device.

29. The method of claim 27, wherein the terminal device indicates the use of a relaxed measurement criterion when reporting measurements to the network device.

30. The method of any one of claims 22 to 29, wherein the beam of the cell on which the message is received is one of: a beam different from the one or more beams; or a beam that is one of the one or more beams.

31. A method comprising: At a network device, a message is transmitted to a terminal device on a paging channel, the message indicating whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of the cell associated with the network device.

32. The method of claim 31, wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

33. The method of claim 31 or 32, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

34. The method of claim 31 or 32, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

35. The method according to any one of claims 31 to 34, wherein when the network performs the transmission, the terminal device is in an idle state or an inactive state.

36. The method according to claims 31 to 35, wherein: transmitting comprises transmitting the message via at least one beam of the cell; and The method also includes indicating to the terminal device whether relaxed measurement for the cell or the one or more beams of the cell is to be performed, and instructing the terminal device to apply different measurement criteria for the one or more beams of the cell or the cell relative to other beams or other cells.

37. A method according to claim 36, wherein the at least one beam of the cell on which the message is transmitted is one of: at least one beam different from the one or more beams; or at least one beam of one of the one or more beams.

38. The method of claim 36, wherein the different measurement standards are preconfigured by the network device for the terminal device.

39. The method of claim 36, further comprising receiving, by the network device, measurements from the terminal device, wherein the terminal device indicates the use of a relaxed measurement criterion for the one or more beams of the cell or the cell.

40. A computer program comprising instructions for performing the method of any one of claims 1 to 39 when the computer program is run on a device.

41. A computer program according to claim 40, wherein the computer program is a computer program product comprising a computer readable medium carrying instructions embodied therein for use with the apparatus.

42. A computer program according to claim 40, wherein the computer program is directly loadable into an internal memory of the device.

43. An apparatus comprising means for performing the following operations: At the terminal device, receiving a message from the network device on a paging channel; and Based on the message, it is determined whether the terminal device is allowed or restricted from accessing a cell associated with the network device or one or more beams of the cell.

44. The apparatus of claim 43, wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

45. The apparatus of claim 43 or 44, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

46. ​​The apparatus of claim 43 or 44, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

47. An apparatus according to any one of claims 43 to 46, wherein the terminal device is in an idle state or an inactive state at least during the receiving and determining.

48. The device according to any one of claims 43 to 47, wherein: Receiving the message comprises receiving the message from the network device via a beam of the cell; and The determining further comprises determining, based on the message, whether the terminal device is allowed or restricted from accessing the cell via the beam of the cell.

49. The apparatus of claim 48, wherein the beam of the cell on which the message is received is one of: a beam different from the one or more beams; or a beam that is one of the one or more beams.

50. The apparatus of any one of claims 48 or 49, wherein the component is further configured to perform: Based on the determination, the cell is accessed via the one or more beams of the cell.

51. The apparatus of any one of claims 43 to 50, wherein the component is further configured to perform: In response to the message, acquisition of system information of the cell is managed for accessing the cell or the one or more beams of the cell.

52. The apparatus of claim 51, wherein the component is further configured to perform: Based on the message, the acquisition of the system information of the cell is postponed or delayed.

53. The apparatus of claim 51, wherein the component is further configured to perform: Regardless of the determination, the system information of the cell is acquired.

54. An apparatus according to any one of claims 43 to 53, wherein the message indicates a change or update in the system information.

55. The apparatus of claim 54, wherein the component is further configured to perform: Based on the message, the acquisition of the change or update of the system information of the cell is postponed or delayed.

56. An apparatus comprising means for performing the following operations: A message is transmitted by a network device to a terminal device on a paging channel, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of the cell associated with the network device.

57. An apparatus according to claim 56, wherein the paging channel comprises one or more paging occasions to the terminal device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

58. The apparatus of claim 56 or 57, wherein the component is further configured to perform: determining a change or update of system information of the cell; and The change or update in the message is indicated to the terminal device.

59. The apparatus of claim 58, wherein the component is further configured to perform: The message is used to manage or control the terminal device to obtain the change or update of the system information.

60. The apparatus of claim 58 or 59, wherein the component is further configured to perform: The message is used to manage or control the terminal device to obtain the system information of the cell.

61. An apparatus according to any one of claims 56 to 60, wherein the terminal device is in an idle state or an inactive state at least when the network device performs the transmission.

62. The device according to any one of claims 56 to 61, wherein: transmitting comprises transmitting the message via at least one beam of the cell; and The component is further configured to perform: indicating to the terminal device via the one or more beams of the cell whether the terminal device is allowed or restricted from accessing the cell.

63. An apparatus according to claim 62, wherein the at least one beam of the cell on which the message is transmitted is one of: at least one beam different from the one or more beams; or at least one beam of one of the one or more beams.

64. An apparatus comprising means for performing the following operations: At the terminal device, receiving a message from the network device on a paging channel; and Based on the message, it is determined whether the terminal device is allowed to employ relaxed measurements for accessing a cell associated with the network device or one or more beams of the cell.

65. The apparatus of claim 64, wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

66. The apparatus of claim 64 or 65, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

67. The apparatus of claim 64 or 65, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

68. An apparatus according to any one of claims 64 to 67, wherein the terminal device is in an idle state or an inactive state at least during the receiving and determining.

69. An apparatus according to claims 64 to 68, wherein based on the determination of the relaxed measurement for the cell or the one or more beams of the cell, the terminal device applies a different measurement standard for the one or more beams of the cell or the cell than for other beams or other cells.

70. The apparatus of claim 69, wherein the different measurement standards are preconfigured by the network device for the terminal device.

71. The apparatus of claim 69, wherein the terminal device indicates the use of a relaxed measurement criterion when reporting measurements to the network device.

72. An apparatus according to any one of claims 64 to 71, wherein the beam of the cell on which the message is received is one of: a beam different from the one or more beams; or a beam of one of the one or more beams.

73. An apparatus comprising means for performing the following operations: At a network device, a message is transmitted to a terminal device on a paging channel, the message indicating whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of the cell associated with the network device.

74. The apparatus of claim 73, wherein the paging channel comprises one or more paging occasions from the network device on a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH).

75. The apparatus of claim 73 or 74, wherein the paging channel comprises one or more paging occasions on a PDCCH, and wherein the message is a short message indicated in downlink control information transmitted on the PDCCH.

76. The apparatus of claim 73 or 74, wherein the paging channel comprises one or more paging occasions on a PDSCH, and wherein the message is a paging message transmitted on the PDSCH.

77. An apparatus according to any one of claims 73 to 76, wherein the terminal device is in an idle or inactive state when the network performs the transmission.

78. The apparatus of claims 73 to 77, wherein: transmitting comprises transmitting the message via at least one beam of the cell; and The component is further configured to perform: instructing the terminal device whether relaxed measurement for the cell or the one or more beams of the cell is to be performed, and instructing the terminal device to apply different measurement standards for the one or more beams of the cell or the cell relative to other beams or other cells.

79. An apparatus according to claim 78, wherein the at least one beam of the cell on which the message is transmitted is one of: at least one beam different from the one or more beams; or at least one beam of one of the one or more beams.

80. The apparatus of claim 78, wherein the different measurement criteria are preconfigured by the network device for the terminal device.

81. An apparatus according to claim 78, wherein the component is further configured to perform: receiving measurements by the network device from the terminal device, wherein the terminal device indicates the use of the one or more beams of the cell or the relaxed measurement criteria of the cell.

82. The device of any preceding device claim, wherein the component comprises: at least one processor; as well as At least one memory storing instructions that, when executed by the at least one processor, cause the execution of the apparatus.

83. An apparatus comprising: one or more processors; as well as One or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform the following operations: At the terminal device, receiving a message from the network device on a paging channel; as well as Based on the message, it is determined whether the terminal device is allowed or restricted from accessing a cell associated with the network device or one or more beams of the cell.

84. An apparatus comprising: one or more processors; as well as One or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform the following operations: A message is transmitted by a network device to a terminal device on a paging channel, wherein the message indicates whether the terminal device is allowed or restricted from accessing a cell or one or more beams of the cell associated with the network device.

85. An apparatus comprising: one or more processors; as well as One or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform the following operations: At the terminal device, receiving a message from the network device on a paging channel; as well as Based on the message, it is determined whether the terminal device is allowed to employ relaxed measurements for accessing a cell associated with the network device or one or more beams of the cell.

86. An apparatus comprising: one or more processors; as well as One or more memories storing instructions that, when executed by the one or more processors, cause the apparatus to at least perform the following operations: At a network device, a message is transmitted to a terminal device on a paging channel, the message indicating whether the terminal device is allowed to employ relaxed measurements for accessing a cell or one or more beams of the cell associated with the network device.

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