Method and apparatus for performing communication in a wireless communication system

Abstract

A method for performing measurements in an idle state of a user equipment (UE) in a telecommunications network is disclosed, comprising the following steps: the network broadcasts a first message; the network sends a dedicated second message to the UE; wherein the first message includes information related to one or more frequencies used in a specific cell in the network, and the second message includes information about frequencies specific to the UE, wherein the UE receives the first message and the second message, and performs measurements on at least one frequency present in both the first message and the second message.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communication systems and, more particularly, to measurement procedures performed by a User Equipment (UE) as part of a process of connecting, reconnecting or otherwise changing status with respect to a telecommunications network. Background Art

[0002] In order to meet the demand for wireless data traffic that has increased since the deployment of the fourth generation (4G) communication system, efforts have been made to develop an improved fifth generation (5G) or quasi-5G communication system. 5G or quasi-5G communication systems are also referred to as "super 4G networks" or "post-long term evolution (LTE) systems". 5G communication systems are considered to be implemented in higher frequency (mmWave) bands (such as the 60GHz band) in order to achieve higher data rates. In order to reduce the propagation loss of radio waves and increase the transmission distance, beamforming, massive multiple input multiple output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive antenna technology are discussed for 5G communication systems. In addition, in 5G communication systems, development of system network improvements is underway based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communications, wireless backhaul, mobile networks, collaborative communications, coordinated multi-point (CoMP), receiving-end interference elimination, etc. In the 5G system, hybrid frequency shift keying (FSK) and Feher's quadrature amplitude modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coded modulation (ACM), and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies.

[0003] The Internet, which is a human-centered connected network in which people generate and consume information, is now evolving into the Internet of Things (IoT), in which distributed entities (such as things) exchange and process information without human intervention. The Internet of Everything (IoE), which is a combination of IoT technology and big data processing technology through connection with cloud servers, has emerged. Because IoT implementation requires technical elements such as "sensing technology", "wired / wireless communication and network infrastructure", "service interface technology" and "security technology", sensor networks, machine-to-machine (M2M) communication, machine type communication (MTC), etc. have been studied recently. Such an IoT environment can provide intelligent Internet technology services that create new value for human life by collecting and analyzing data generated between connected things. IoT can be applied to various fields including smart homes, smart buildings, smart cities, smart cars or connected cars, smart grids, health care, smart appliances and advanced medical services through the integration and combination of existing information technology (IT) with various industrial applications.

[0004] In line with this, various attempts have been made to apply 5G communication systems to IoT networks. For example, technologies such as sensor networks, MTC, and M2M communications can be implemented through beamforming, MIMO, and array antennas. Cloud RAN as an application of the above-mentioned big data processing technology can also be considered an example of the fusion between 5G technology and IoT technology.

[0005] As described above, various services may be provided according to the development of wireless communication systems, and thus a method for easily providing such services is required. Summary of the invention

[0006] Technical issues

[0007] Various services may be provided according to the development of wireless communication systems, and thus a method for easily providing such services is required.

[0008] Technical Solution

[0009] A method for performing measurements in an idle state by a user equipment (UE) in a telecommunication network is disclosed, comprising the following steps: the network broadcasts a first message; the network sends a dedicated second message to the UE; wherein the first message includes information related to one or more frequencies used in a specific cell in the network, and the second message includes information about frequencies specific to the UE, wherein the UE receives the first message and the second message, and performs measurements on at least one frequency present in both the first message and the second message. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] For a better understanding of the invention, and to show how embodiments of the invention may be implemented, reference will now be made, by way of example only, to the accompanying drawings, in which:

[0011] Figure 1 shows a representation of a network setup according to an embodiment of the present invention;

[0012] Figure 2 A flow chart showing a method according to an embodiment of the present invention is shown;

[0013] Figure 3A A message flow diagram according to an embodiment of the present invention is shown;

[0014] Figure 3B shows a message flow diagram according to an embodiment of the present invention; and

[0015] Figure 4 A message flow diagram according to an embodiment of the present invention is shown.

[0016] Figure 5 is a block diagram illustrating a UE 500 according to another embodiment of the present disclosure.

[0017] Figure 6 is a block diagram illustrating a network entity 600 according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0018] According to a first aspect of the present invention, a method for a user equipment (UE) in a telecommunication network to perform measurements in an idle state is provided, comprising the following steps: the network broadcasts a first message; the network sends a dedicated second message to the UE; wherein the first message includes information related to one or more frequencies used in a specific cell in the network, and the second message includes information about frequencies specific to the UE, wherein the UE receives the first message and the second message, and performs measurements on at least one frequency present in both the first message and the second message.

[0019] In an embodiment, immediately before entering the idle state, the UE is connected in one of carrier aggregation or dual connectivity mode.

[0020] In an embodiment, the measuring comprises measuring the SSB RS.

[0021] In an embodiment, the UE also provides an indication of the performance of the measurement results to the network.

[0022] In an embodiment, the first message or the second message further comprises instructions to the UE regarding more than one measurement that should be performed and what parameters should be reported to the network.

[0023] In an embodiment, the network indicates, explicitly or implicitly, that it supports the method of any preceding claim.

[0024] In an embodiment, explicit support is indicated by an indicator in the signal, while implicit support is indicated by scheduling of related SIBs.

[0025] In an embodiment, the UE provides an indication to the network that measurements have been performed.

[0026] In an embodiment, if the UE is resuming and was previously connected to a secondary cell group, the UE indicates to the network whether it desires to resuming to the secondary cell group.

[0027] In an embodiment, when entering an idle state, the network provides configuration data to the UE, the configuration may be indicated by full signaling or delta signaling, and the use of full signaling or delta signaling is indicated by a signal from the network to the UE.

[0028] According to a second aspect of the present invention, there is provided a telecommunications network operable to communicate with a UE in an idle state, the network being operable to:

[0029] Broadcasting a first message; sending a dedicated second message to a UE; wherein the first message includes information related to one or more frequencies used in a specific cell in the network, and the second message includes information about frequencies specific to the UE, so that when the UE receives the first message and the second message, it is operable to perform measurements on at least one frequency present in both the first message and the second message.

[0030] According to a third aspect of the present invention, a UE is provided, which is operable in an idle state to perform the following steps: receiving a first message broadcast from a telecommunications network; receiving a dedicated second message sent to the UE from the network; wherein the first message includes information related to one or more frequencies used in a specific cell in the network, and the second message includes information about frequencies specific to the UE, wherein the UE, upon receiving the first message and the second message, is operable to perform measurements on at least one frequency present in both the first message and the second message.

[0031] According to a fourth aspect of the present invention, there is provided a method of identifying UE capabilities associated with different RATs in a telecommunications network, wherein the RAN requests one or more capability information subsets from the UE, and the UE responds with one or more corresponding capability information subsets, and the network uses identifiers of such capability information subsets to interact with the UE and between network nodes.

[0032] According to the present invention, there is provided an apparatus and a method as set out in the accompanying claims. Further features of the invention will become apparent from the dependent claims and the subsequent description.

[0033] While several preferred embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the appended claims.

[0034] The embodiments of the present invention and their various features and advantageous details are explained in more detail with reference to the non-limiting embodiments shown in the accompanying drawings and described in detail in the following description. The description of known components and processing techniques is omitted so as not to unnecessarily obscure the embodiments of the present invention. In addition, the various embodiments described herein are not necessarily mutually exclusive, because some embodiments can be combined with one or more other embodiments to form new embodiments. Unless otherwise stated, the term "or" used herein refers to a non-exclusive "or". The examples used herein are merely to facilitate understanding of the manner in which the embodiments of the present invention can be practiced, and further enable those skilled in the art to practice the embodiments of the present invention. Therefore, these examples should not be interpreted as limiting the scope of the embodiments of the present invention.

[0035] As tradition in the art, embodiments can be described and illustrated according to the block of performing one or more functions described.These blocks may be referred to as units or modules, etc. herein, and are physically implemented by analog or digital circuits (such as logic gates, integrated circuits, microprocessors, microcontrollers, memory circuits, passive electronic components, active electronic components, optical components, hard-wired circuits, etc.), and may be optionally driven by firmware and software.For example, the circuit may be contained in one or more semiconductor chips or may be contained on a substrate support such as a printed circuit board.The circuit constituting the block may be implemented by dedicated hardware or by a processor (for example, one or more programmed microprocessors and associated circuits) or by a combination of dedicated hardware that performs some functions of the block and a processor that performs other functions of the block.Without departing from the scope of the present disclosure, each block of the embodiment may be physically divided into two or more discrete blocks that interact with each other.Similarly, without departing from the scope of the present disclosure, the block of the embodiment may be physically combined into more complex blocks.

[0036] The accompanying drawings are used to help easily understand various technical features, and it should be understood that the embodiments presented herein are not limited by the accompanying drawings. Therefore, except for those specifically set forth in the accompanying drawings, the present disclosure should be interpreted as extending to any changes, equivalents and substitutes. Although the first, second and other terms can be used to describe various elements, these elements should not be limited by these terms. These terms are usually only used to distinguish one element from another element.

[0037] The communication system includes a downlink (DL) that transmits signals from a transmission point such as a base station (BS) or NodeB to a user equipment (UE) and an uplink (UL) that transmits signals from the UE to a reception point such as a NodeB. The UE, also commonly referred to as a terminal or mobile station, may be fixed or mobile and may be a cellular phone, a personal computer device, or an automation device. An eNodeB, which refers to a NodeB in a long term evolution (LTE) communication system, and a gNodeB, which refers to a NodeB in a new radio (NR) communication system, may also be referred to as an access point or other equivalent terms.

[0038] The UE may connect or reconnect from an idle, suspended or inactive state. Embodiments of the present invention may find use in any of a variety of telecommunication networks. Specific embodiments are described in the context of fifth generation (5G) or new radio (NR) networks, but other types of networks may also benefit.

[0039] Whether the UE is connecting or reconnecting to the network from an idle or inactive state, it can be configured to perform certain measurements and report some or all of these measurements back to the network to assist in call establishment or recovery procedures or for other reasons. For example, early measurement result availability can enable the network to quickly configure secondary cells on frequencies where such results are provided.

[0040] When a UE is connected to a network via Carrier Aggregation (CA) or Dual Connectivity (DC), this introduces some additional issues if and when the UE enters an idle or inactive state. This is also known as a "suspended" state. Once the active state ends, for whatever reason, and if connectivity is restored, any secondary cells that were previously configured will be lost.

[0041] Therefore, resuming activity with CA / DC after a pause may take longer than expected.

[0042] It is an object of embodiments of the present invention to address these and other problems in the prior art.

[0043] According to an embodiment of the present invention, when in idle mode, the UE is operable to: perform measurements before resuming so that the recovery can be performed faster than otherwise. The measurements performed relate to one or more of the strength of the received signal, the quality of the received signal, etc., indicating an opportunity to establish a good quality connection. One such measurement includes measuring SSB-RS.

[0044] Hereinafter, "idle state" may include RRC_IDLE, SUSPENDED, and RRC-INACTIVE.

[0045] In addition, the idle state may refer to an idle state in one of NR and LTE, including a case where the idle state is in LTE when the measurement involves NR.

[0046] Embodiments of the present invention allow early configuration of secondary cells, thereby improving user experience and reducing latency.

[0047] In idle and inactive states, the UE is required to perform measurements anyway in order to perform cell reselection. This is related to the frequencies used for camping. However, the UE can also be configured to perform early measurements on other frequencies, such as frequencies that are not used for camping but purely for the configuration of secondary cells (SCells). Measurements on these frequencies are additional and therefore potentially burdensome to the UE. However, it is expected that a particular UE does not perform multiple unnecessary measurements, as this places an excessive burden on the UE and, in addition to other performance indicators, affects the battery life of the UE.

[0048] Figure 1 A general setup of a network is shown, including a UE 300 which is configured with a primary cell 100 and a secondary cell 200 before entering an idle state.

[0049] In an embodiment, the UE is informed which measurements to make early in the process by one or more of dedicated signaling and broadcast signaling. Dedicated signaling is signaling from the network that is specific to a particular identified UE. Broadcast signaling is cell-specific signaling that is available to and can be received by all UEs in a particular cell.

[0050] Dedicated signaling indicates a superset of frequencies that a specific UE is requested to measure. However, a specific frequency from this superset is only measured if the cell where the UE resides additionally indicates as part of the broadcast signaling that the frequency is used locally, i.e., a cell is deployed on the relevant frequency in this network area. This is because not all frequencies are used in all cells, and it does not make sense for the UE to attempt measurements that will fail, so dedicated signaling and broadcast signaling will be mixed. Searching for cells on such unused frequencies will only drain the UE's battery. As shown in this embodiment, this situation is prevented by the combined use of dedicated signaling and broadcast signaling.

[0051] In this way, the measurement specificity of a particular UE can be maintained within the context of the frequencies used locally in a particular cell. This prevents the UE from being overloaded by performing measurements on frequencies that are not relevant to it. Of course, the UE is still required to perform the measurements that are usually required for cell reselection, but in embodiments of the present invention, some additional measurements can be performed earlier than otherwise, resulting in faster recovery.

[0052] For example, dedicated signaling provided to UE1 indicates that UE1 should monitor f1, f3 and f5, while UE2 should monitor f1, f2, f3 and f4. Cell C1 indicates in its broadcast signaling that f1 and f2 are available (i.e., there should be cells on these frequencies within its coverage area), while cell C2 indicates that f1, f3 and f4 are available. This can be summarized in the following table, which shows which UE in which cell is to measure which frequencies.

[0053] Cell C1 Cell C2 UE1 f1 f1, f3 UE2 f1, f2 f1, f3, f4

[0054] As described above, this mix of dedicated and broadcast signaling is used to indicate to the UE which frequencies are to be measured, but other uses of this mix of signaling via dedicated and broadcast means can also be envisioned. For example, signaling can be used to indicate exactly what the UE should measure, if for example this is different from the default option. It can also be used to indicate exactly to the UE what parameters should be reported back to the network.

[0055] exist Figure 2 A method according to an embodiment of the present invention is shown in FIG. 1 , wherein the steps are shown as follows:

[0056] S30: network broadcasts the first message;

[0057] S31: The network sends a dedicated second message to the UE 300 (usually when commanding the UE to enter an idle state, for example, when releasing a radio connection);

[0058] S32: The UE decodes the information in the two messages to determine which frequency(s) to measure;

[0059] S33: The UE performs the required measurements (when in idle state); and

[0060] S34: The UE reports the measurement results back to the network (usually when or immediately after transitioning to the connected state).

[0061] In addition, the information included in the dedicated signal and the broadcast signal can be combined in different ways. As described above, the frequency information provided to the UE via both the dedicated signaling and the broadcast signaling is logically "ANDed" so that only the frequencies that appear in both of these two signaling forms for a particular UE are measured. However, alternatively, the information appearing in each signaling form can be logically "ORed" so that only the frequencies that appear in one of the lists are measured.

[0062] Similarly, parameter values ​​can be used so that the value actually used is either (also for Booleans) the minimum (MIN) or maximum (MAX) of the two.

[0063] In general, it is preferred to support dedicated signaling for all configurations and use broadcast signaling only in a few cases. Since there are more configuration parameters (such as volume, beam results, etc.) that affect the UE measurement burden, it is preferred to limit the information broadcast because it must be provided on each cell used for camping. This approach enables the network to correctly indicate which frequencies are locally available. Furthermore, this avoids the need for the concept of validity areas.

[0064] The network indicates its support for the above-mentioned early measurements. This can be done explicitly, for example using a special indicator included in some signaling. Alternatively, this can be indicated implicitly, for example if the scheduling information indicates that the relevant system information block (SIB) is scheduled (if the use of a separate SIB is adopted) or if the broadcast signal indicates information about the local availability of the early measurement frequency.

[0065] In an embodiment, the UE provides an indication to the network about the performance of the measurement results, such as based on the measurements used for cell reselection, or available for higher performance, such as available for more frequent measurements. The performance requirements for the measurements may not be fully specified and may be determined at least in part by a specific UE implementation. In some cases, the UE may not need to perform any measurements, but the UE is always allowed to do so if necessary. This situation may involve temporarily moving out of the area when passing through a legacy cell.

[0066] In the case where the UE is recovering to a secondary cell group (SCG), the UE is able to indicate to the network whether recovery to a secondary cell (SC) or SCG is preferred. This may occur before the interruption, when the UE is operating in DC mode, in which the UE is connected to a primary node (MN) and a secondary node (SN), data bearers may have been configured to terminate at the MN and SN, and each can use MCG and / or SCG resources. Recovery may be triggered by the need to transmit data for a particular bearer to the network. If, upon recovery, the SN needs to be involved again, this may involve additional signaling and involve additional network nodes, thereby slowing down recovery. However, if the UE indicates that the recovery was not triggered by data on the SN, there is no need to involve the SN, thereby speeding up recovery. The indication may be provided explicitly or implicitly by providing or indicating the availability of (certain) measurement results.

[0067] When providing a configuration to be used in idle, suspended or inactive state, the network may indicate that the provided information relates to a complete configuration, i.e. the UE should release any previously received configuration and then apply the newly received complete configuration.

[0068] It is assumed that when the network moves a UE to an inactive state, it only signals the changes compared to the inactive configuration previously assigned to the UE (referred to as incremental signaling). This is to avoid repeating the same signaling frequently, since a UE can usually switch between connected and inactive.

[0069] The use of full or incremental signaling may be explicitly indicated by using a dedicated bit in the transmission from the network.

[0070] Furthermore, when the UE passes through a legacy cell, the configuration may be maintained. In other words, the UE maintains the configuration, but when camping on such a legacy cell (not supporting early measurements), the UE does not measure or report.

[0071] In networks that know the capabilities of a particular UE (e.g., capabilities regarding certain hardware features, such as supported frequencies), a particular problem is encountered. It is generally not efficient to have the UE send detailed information of its capabilities to the network too frequently. Also, it is difficult for the network to obtain and maintain an up-to-date list.

[0072] As the size of UE capabilities becomes important, it has been agreed that the UE can provide an identity instead of explicitly signaling the UE capabilities (RACS). This identity (CapID) represents the set of UE capabilities for one or more radio access technologies supported by the UE. UEs of the same model / version will indicate the same CapID, in which case the network only needs to store the associated capabilities once, even if there are hundreds or thousands of such UEs.

[0073] Effectively, the identifier or indicator acts as a shorthand expression for the capability and allows the shortened code to be cross-referenced with a database or look-up table (LUT) in the CN. Certain further shorthand expressions may be provided so that a particular model of UE from a certain manufacturer is known to have certain capabilities, which means that capabilities known to the network do not have to be explicitly indicated again.

[0074] There are two types of CapIDs, namely a) an identifier assigned by the manufacturer and b) an identifier assigned by the network after the UE has uploaded its capabilities. The latter is called a capability ID assigned by the PLMN. Although the manufacturer capability ID covers all capabilities supported by the UE, the capability ID (CapID) assigned by the PLMN corresponds to a UE capability (sub) set, i.e. it corresponds to a capability subset requested by the RAN and uploaded accordingly. For example, the RAN may request the UE to indicate its capabilities for a subset of supported radio access technologies (RATs). In addition, for some of the relevant RATs, the RAN may request the UE to provide a subset of capabilities that are most relevant to the network. For example, the RAN may request the UE to provide capabilities for a specific set of frequency bands. In this way, the RAN can reduce the amount of capabilities provided by the UE. The network indicates which capability subset the UE should provide through some fields or parameters called "capability request filters".

[0075] In different areas of the PLMN, the RAN node may employ slightly different capability request filters, for example because the set of frequencies deployed in different areas may be different. In the case of a PLMN assigned capability ID, the ID may represent a subset of UE capabilities corresponding to one specific filter setting used in one specific area of ​​the network.

[0076] To solve this problem, an identifier identifying a UE capability subset (ReqCapSubset) is used, ie it identifies a specific UE capability filter setting. This identifier can be used together with the capability ID between the Radio Access Network (RAN) and the Core Network (CN).

[0077] Here, the latter option is called ReqCapSubset (requested capability subset).

[0078] Note that if two UEs have the same CapID for one ReqCapSubset, this does not mean that they also have the same CapID for another ReqCapSubset, i.e., the UEs may be identical only for some subset of RATs or some subset of frequency bands. Otherwise it is possible to: split the CapID into a part indicating the UE model and a part indicating the ReqCapSubset; and / or infer from one CapID which CapID applies to the UE for another ReqCapSubset. This is very useful during registration, especially when switching to a target that uses another ReqCapSubset.

[0079] However, the problem arises that in different parts of the RAN different ReqCapSubsets may be used. It is beneficial for the CN to be aware of the filters associated with the CapID allocated by the PLMN as this allows the ability to provide appropriate filtering.

[0080] This may avoid the need for the CN to know RAN details such as these filters or the specific areas of the RAN in which they are used.

[0081] To address these issues, an identifier for the ReqCapSubset (i.e., called RAT and Filter Identity or RnF-ID) is used. Within a specific PLMN, a limited number will be used, for example 64...256. At registration / connection establishment, the UE indicates (by means of this identifier, i.e., RnF-ID) which CapID it has been assigned in the PLMN and for each associated ReqCapSubset. The network (CN and RAN) knows (from the Operation, Administration and Maintenance functions, OAM) which RnF-ID is used by different RAN nodes. Therefore, the network knows if there is a CapID suitable for use in the target node. If at handover, the RAN does not have the capabilities associated with the target CapID, it can retrieve these capabilities from the CN.

[0082] When the network in the form of a base station (gNB) wishes to request capability information for a specific UE, it may request the capability information for that specific UE in a step-by-step manner (i.e., in a message related to one RAT at a time). In this context, this means that the capability information for 5G / NR may be requested separately from the capability information for LTE and / or any other supported available RAT.

[0083] This is because it may not be possible to convey all required capability information in one message due to message size limitations.

[0084] To address the issue with this approach, the network is operable to separately indicate: full capability information (full ReqCapSubset), i.e. all RATs and for each appropriate filter; and / or an indication of the transmission of full capabilities for a RAT (if not a CapID for a full ReqCapSubset).

[0085] In the above, the first option enables the UE to respond with the CapID, while the second option may be an indication of the RAT to be transmitted in this step, but may also include additional steps.

[0086] This is Figure 3A , which shows UE 10, RAN 20 and CN 30 in communication.

[0087] In step S1, the RAN 20 requests capabilities from the UE 10 using filter #1. In step S2, the UE responds to the CN with the required information. Steps S3 and S4 repeat the process in conjunction with filter #2, and steps S5 and S6 repeat the process again in conjunction with filter #3. In step S7, the CN assigns a capability ID (CapID) to the UE determined based on the information provided in steps S2, S4, and S6.

[0088] For example, filter #1 may be used to request a subset of NR capabilities (e.g., a subset of frequency bands), filter #2 relates to a subset of LTE capabilities (e.g., a subset of frequency bands), and filter #3 relates to UMTS capabilities.

[0089] RAN can gradually upload capabilities to CN, such as Figure 3A As shown, or it can collect the capabilities transmitted in different steps and then upload these capabilities together to the CN, such as Figure 3B Steps S11-S15 and S17 are roughly similar to Figure 3A The various steps in .

[0090] The CN may then assign a Capability ID to the UE, such as a Capability ID assigned by the PLMN. This CapID reflects the total set of capabilities required by the RAN nodes in this particular area, as reflected by the filters used in the previous steps. An identification (RnF-ID) may be used to indicate this specific subset (ReqCapSubset). Such an identification enables the Capability ID to be reused when the UE returns to this RAN area after having moved to another RAN area where a different capability subset is used.

[0091] As described above, when UE capabilities for different RATs are transmitted, this can be performed in different steps. When the PLMN allocates a CapID, it should cover the different RATs supported. In other words, it should be clear which RAT capabilities are associated with the CapID. Specifically, a UE that receives a CapID allocated by the PLMN should know which capabilities this CapID corresponds to that UE previously transmitted. For example, in Figure 3A In S7, the CapID is assigned by a message, and from this message the UE should know whether this ID corresponds to its capabilities communicated in S2, S4 and S6. For example, the message in S7 (and possibly the messages in S2, S4 and S6) may include some information that enables the UE to correlate it with the capability information messages in S2, S4 and S6.

[0092] To ensure this is addressed, the PLMN-allocated CapID is set and the network can explicitly indicate which previously allocated RAT containers the CapID covers. Figure 4An example is shown in , where the RnF-ID is included in messages S21, S22, S23, S24 and S25.

[0093] Specifically, the network may provide an identifier that reflects a subset of capabilities previously requested across different steps. This may be provided along with the CapID or within the CapID itself.

[0094] In some cases, an explicit RnF-ID may not be used. For example, the ID may correspond to a specific area of ​​the radio access network, possibly indicated by an identity in the broadcast. The UE may assume that the CapID assigned by the network corresponds to the area in which it was received and the capabilities that have been uploaded.

[0095] Figure 5 is a block diagram illustrating a UE 500 according to another embodiment of the present disclosure.

[0096] refer to Figure 5 UE 500 may include a transceiver 510, a processor 520, and a memory 530. However, not all of the components shown in the figure are required. UE 500 may include a transceiver 510, a processor 520, and a memory 530. Figure 5 Furthermore, according to another embodiment, the transceiver 510, the processor 520, and the memory 530 may be implemented as a single chip.

[0097] The above-mentioned components will now be described in detail.

[0098] The transceiver 510 may include an RF transmitter for up-converting and amplifying transmitted signals, and an RF receiver for down-converting received signal frequencies. However, according to another embodiment, the transceiver 510 may be implemented by more or fewer components than shown in the components.

[0099] The transceiver 510 may be connected to the processor 520 and transmit and / or receive signals. The signals may include control information and data. In addition, the transceiver 510 may receive signals through a wireless channel and output the signals to the processor 520. The transceiver 510 may transmit signals output from the processor 520 through a wireless channel.

[0100] The processor 520 may include one or more processors or other processing devices that control the proposed functions, processes and / or methods. The operations of the UE 500 may be implemented by the processor 520.

[0101] Processor 520 can decode the information in the two messages to determine which frequency(ies) to measure. Processor 520 can perform the required measurements (when in an idle state). Processor 520 can report the measurement results back to the network (usually when switching to a connected state or immediately after switching to a connected state). In addition, the information included in the dedicated signal and the broadcast signal can be combined in different ways. As described above, the frequency information provided to the UE via both dedicated signaling and broadcast signaling is logically "anded" so that only the frequencies appearing in both signaling forms of a specific UE are measured. However, alternatively, the information appearing in each signaling form can be logically "ored" so that only the frequencies appearing in one of the lists are measured.

[0102] In addition, the processor 520 performs reference Figures 1 to 4 Describes the operation of the UE.

[0103] The memory 530 may store control information or data included in a signal obtained by the UE 500. The memory 530 may be connected to the processor 520 and store at least one instruction or protocol or parameter for the proposed function, process and / or method. The memory 530 may include a read-only memory (ROM) and / or a random access memory (RAM) and / or a hard disk and / or a CD-ROM and / or a DVD and / or other storage devices.

[0104] Figure 6 is a block diagram illustrating a network entity 600 according to another embodiment of the present disclosure.

[0105] refer to Figure 6 , the network entity 600 may include a transceiver 610, a processor 620, and a memory 630. However, not all components shown in the figure are required. The network entity 600 may be composed of Figure 6 The embodiment may be implemented with more or fewer components as shown. In addition, according to another embodiment, the transceiver 610, the processor 620 and the memory 630 may be implemented as a single chip. The network entity may be a CN or a RAN.

[0106] The above-mentioned components will now be described in detail.

[0107] The transceiver 610 may include an RF transmitter for up-converting and amplifying transmitted signals, and an RF receiver for down-converting received signal frequencies. However, according to another embodiment, the transceiver 610 may be implemented by more or fewer components than shown in the components.

[0108] The transceiver 610 may be connected to the processor 620 and transmit and / or receive signals. The signals may include control information and data. In addition, the transceiver 610 may receive signals through a wireless channel and output the signals to the processor 620. The transceiver 610 may transmit signals output from the processor 620 through a wireless channel.

[0109] The processor 620 may include one or more processors or other processing devices that control the proposed functions, processes and / or methods. The operations of the network entity 600 may be implemented by the processor 620.

[0110] The processor 620 may control the transceiver to broadcast the first message. The processor 620 may control the transceiver to send a dedicated second message to the UE (usually when commanding the UE to enter an idle state, for example, when releasing a radio connection). The processor 620 may control the transceiver to receive measurement results from the UE. In addition, the processor 620 may perform the above reference Figures 1 to 4 Describe the operation of the network.

[0111] The memory 630 may store control information or data included in the signal obtained by the network entity 600. The memory 630 may be connected to the processor 620 and store at least one instruction or protocol or parameter for the proposed function, process and / or method. The memory 630 may include a read-only memory (ROM) and / or a random access memory (RAM) and / or a hard disk and / or a CD-ROM and / or a DVD and / or other storage devices.

[0112] At least some of the example embodiments described herein can be constructed using special-purpose hardware in part or in whole. Terms such as "component", "module" or "unit" used herein may include but are not limited to hardware devices, such as circuit systems in the form of discrete or integrated components, field programmable gate arrays (FPGAs) or application-specific integrated circuits (ASICs), which perform specific tasks or provide associated functions. In some embodiments, the described element may be configured to reside on a tangible, persistent, addressable storage medium, and may be configured to execute on one or more processors. In some embodiments, these functional elements may include, for example, components, such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, program code segments, drivers, firmware, microcodes, circuit systems, data, databases, data structures, tables, arrays, and variables. Although example embodiments have been described with reference to components, modules and units discussed herein, such functional elements may be combined into fewer elements or separated into additional elements. Various combinations of optional features have been described herein, and it should be understood that the described features may be combined in any suitable combination. In particular, features of any one exemplary embodiment may be combined with features of any other embodiment where appropriate, except where such combinations are mutually exclusive.Throughout this specification, the term "comprise" or "comprising" means including specified components but not excluding the presence of other components.

[0113] Attention is directed to all papers and documents that are filed concurrently with or before this specification and are published to public inspection with this specification in connection with this application, and the contents of all such papers and documents are hereby incorporated by reference.

[0114] All of the features disclosed in this specification (including any accompanying claims, abstract, and drawings), and / or all of the operations of any method or process so disclosed may be combined in any combination, except combinations in which at least some of such features and / or operations are mutually exclusive.

[0115] Each feature disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for the same, equivalent or similar purposes, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is only an example of a general series of equivalent or similar features.

[0116] The invention is not limited to the details of the foregoing embodiments. The invention extends to any novel one or any novel combination of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one or any novel combination of the steps of any method or process disclosed in this specification (including any accompanying claims, abstract and drawings).

[0117] All of the features disclosed in this specification (including any accompanying claims, abstract, and drawings), and / or all of the operations of any method or process so disclosed may be combined in any combination, except combinations in which at least some of such features and / or operations are mutually exclusive.

[0118] Each feature disclosed in this specification (including any attached claims, abstracts and drawings) may be replaced by alternative features for the same, equivalent or similar purposes, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is only an example of a general series of equivalent or similar features.

[0119] The invention is not limited to the details of the foregoing embodiments. The invention extends to any novel one or any novel combination of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one or any novel combination of the steps of any method or process disclosed in this specification (including any accompanying claims, abstract and drawings).

Claims

1. A method for operating a terminal in a wireless communication system, the method comprising: receiving a dedicated message including information associated with a first list including one or more frequencies to be measured; receiving system information via broadcast signaling, the system information including information associated with a second list and configuration information, the second list including one or more frequencies to be measured, the configuration information being used for measuring the one or more frequencies included in the second list; identifying whether a first frequency included in the first list is the same as a second frequency included in the second list; as well as In a case where the first frequency is identical to a second frequency included in the second list, measurement is performed on the first frequency in an idle state or an inactive state.

2. The method according to claim 1, further comprising: Entering the idle state or inactive state based on a dedicated message.

3. The method according to claim 1, wherein: Measurements performed include: In a case where configuration information for the first frequency is not included in the dedicated message and configuration information for the second frequency is included in the system information, measurement is performed on a first frequency included in the first list and identical to a second frequency included in the second list based on the configuration information for the second frequency included in the system information.

4. The method according to claim 1, in, When the first frequency is included in the first list and the dedicated message also includes configuration information for the first frequency, measurement is performed on the first frequency based on the configuration information for the first frequency in the dedicated message, even if the system information includes a different measurement configuration for the second frequency.

5. The method according to claim 1, wherein: Before entering the idle state or the inactive state, the terminal operates in one of the carrier aggregation CA or dual connectivity DC modes.

6. A method for operating a base station BS in a wireless communication system, the method comprising: sending a dedicated message to a terminal, the dedicated message comprising information associated with a first list, the first list comprising one or more frequencies to be measured; Sending system information to the terminal via broadcast signaling, the system information including information associated with the second list and configuration information, the second list including one or more frequencies to be measured, and the configuration information being used for measuring the one or more frequencies included in the second list; as well as receiving, from the terminal, a measurement result of a first frequency included in the first list and identical to one of the at least one frequency included in the second list, Wherein, in a case where the first frequency is the same as the second frequency included in the second list, the measurement of the first frequency is performed in an idle state or an inactive state of the terminal.

7. The method according to claim 6, wherein: The dedicated message is used for the terminal to enter an idle state or an inactive state.

8. The method according to claim 6, wherein: In a case where configuration information for a first frequency is not included in a dedicated message and configuration information for a second frequency is included in system information, measurement of a first frequency included in the first list and identical to a second frequency included in the second list is based on the configuration information for the second frequency included in the system information.

9. The method according to claim 6, in, When the first frequency is included in the first list and the dedicated message also includes configuration information for the first frequency, measurement of the first frequency is based on the configuration information for the first frequency in the dedicated message, even if the system information includes a different configuration for the second frequency.

10. The method according to claim 6, wherein: Before entering the idle state or the inactive state, the terminal operates in one of the carrier aggregation CA or dual connectivity DC modes.

11. A terminal in a wireless communication system, the terminal comprising: Transceiver; as well as At least one processor configured to: controlling the transceiver to receive a dedicated message, the dedicated message comprising information associated with a first list comprising one or more frequencies to be measured, controlling the transceiver to receive system information via broadcast signaling, the system information including information associated with a second list and configuration information, the second list including one or more frequencies to be measured, the configuration information being used for measuring the one or more frequencies included in the second list, identifying whether a first frequency included in the first list is the same as one of the one or more frequencies included in the second list, and In a case where the first frequency is identical to a second frequency included in the second list, measurement is performed on the first frequency in an idle state or an inactive state.

12. The terminal according to claim 11, wherein: The at least one processor is further configured to: Entering the idle state or inactive state based on a dedicated message.

13. The terminal according to claim 11, wherein: The at least one processor is further configured to: In a case where configuration information for the first frequency is not included in the dedicated message and configuration information for the second frequency is included in the system information, measurement is performed on a first frequency included in the first list and identical to a second frequency included in the second list based on the configuration information for the second frequency included in the system information.

14. The terminal according to claim 11, wherein: The at least one processor is further configured to: When the first frequency is included in the first list and the dedicated message further includes configuration information for the first frequency, measurement is performed on the first frequency based on the configuration information for the first frequency in the dedicated message, even if the system information includes a different measurement configuration for the second frequency.

15. The terminal according to claim 11, wherein: Before entering the idle state or the inactive state, the terminal operates in one of the carrier aggregation CA or dual connectivity DC modes.

16. A base station in a wireless communication system, the base station comprising: Transceiver; as well as At least one processor configured to: controlling the transceiver to send a dedicated message to the terminal, the dedicated message comprising information associated with a first list, the first list comprising one or more frequencies to be measured, controlling the transceiver to send system information to the terminal via broadcast signaling, the system information including information associated with the second list and configuration information, the second list including one or more frequencies to be measured, the configuration information being used for measuring the one or more frequencies included in the second list, and controlling the transceiver to receive, from the terminal, a measurement result of a first frequency included in the first list and identical to one of the at least one frequency included in the second list, Wherein, in a case where the first frequency is the same as the second frequency included in the second list, the measurement of the first frequency is performed in an idle state or an inactive state of the terminal.

17. The base station according to claim 16, wherein: The dedicated message is used for the terminal to enter an idle state or an inactive state.

18. The base station according to claim 16, wherein: In a case where configuration information for a first frequency is not included in a dedicated message and configuration information for a second frequency is included in system information, measurement of a first frequency included in the first list and identical to one of at least one frequency included in the second list is based on the configuration information for the second frequency included in the system information.

19. The base station according to claim 16, in, When the first frequency is included in the first list and the dedicated message also includes configuration information for the first frequency, measurement of the first frequency is based on the configuration information for the first frequency in the dedicated message, even if the system information includes a different configuration for the second frequency.

20. The base station according to claim 16, wherein: Before entering the idle state or the inactive state, the terminal operates in one of the carrier aggregation CA or dual connectivity DC modes.

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