TWI758050B - User equipments and methods for reporting new radio measurement gap requirement information - Google Patents

Abstract

A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first base station. The controller is coupled to the wireless transceiver, and configured to receive an RRC reconfiguration message from the first base station via the wireless transceiver, and in response to the UE being configured to provide measurement gap requirement information of NR target bands, send an RRC reconfiguration complete message including the measurement gap requirement information to the first base station via the wireless transceiver.

Description

User equipment and method for reporting new radio measurement gap request information

The present invention relates generally to mobile communications, and, more particularly, to an apparatus and method for reporting New Radio (NR) measurement gap request information from User Equipment (UE).

In a typical mobile communication environment, such as a mobile phone (also known as a cellular phone or cell phone) or a tablet PC (Personal Computer, PC), a wireless-capable UE (also known as a Mobile Station (MS) ) may send voice and/or data signals to one or more service networks. The wireless communication between the UE and the serving network can be performed using various Radio Access Technologies (RAT), for example, Global System for Mobile communication (GSM) technology, General Packet Radio Service (General Packet Radio Service) Radio Service, GPRS) technology, Enhanced Data rates for Global Evolution (EDGE) technology, Wideband Code Division Multiple Access (WCDMA) technology, Code Division Multiple Access 2000 (Code Division Multiple Access, WCDMA) technology Division Multiple Access 2000, CDMA-2000) technology, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (LTE) technology and LTE-Advanced (LTE-Advanced, LTE-A) technology, etc.

These wireless technologies have been employed in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, or even global level. One example of an emerging telecommunication standard is 5G New Radio (NR). 5G NR is a set of enhancements to the LTE mobile standard published by the Third Generation Partnership Project (3GPP). It is designed to better support mobile broadband Internet access by increasing spectral efficiency, reducing costs and improving service.

In LTE and 5G, a technique of "measurement gap" has been proposed. The technical idea is to create a small gap during periods when there is no transmission and/or reception to and from the serving cell, thereby allowing the UE to switch to the target cell and perform signal quality measurements. In order for this to work seamlessly, an agreement on gap definitions must be well established between the UE and the network. However, 3GPP has not yet defined how the UE reports measurement gap requirement information in 5G NR.

Find a solution.

The present application proposes to allow the UE to report New Radio (NR) measurement gap requirement information during the RRC reconfiguration procedure.

In a first aspect of the present application, a UE comprising a wireless transceiver and a controller is provided. The wireless transceiver is configured to perform wireless transmission and reception to and from the first base station. The controller is coupled to the wireless transceiver, and the controller is configured to: receive an RRC reconfiguration message from the first base station via the wireless transceiver, and send an RRC reconfiguration message to the first base station via the wireless transceiver RRC reconfiguration complete message of gap requirement information in response to the measurement gap requirement information of the UE being configured to provide the NR target frequency band.

In a first implementation form of the first aspect of the present application, the controller is further configured In order to determine whether the RRC reconfiguration message includes an indicator for requesting the UE to report the measurement gap requirement information, and to determine that the UE is configured to provide the measurement gap requirement information, in response to the RRC reconfiguration message including the request for The UE reports the indicator of the MIG requirement information.

In a second implementation form of the first aspect of the present application, the controller is further configured to determine whether a handover of the UE from one cell to another cell is taking place, or compared to the information last reported by the UE, Whether the measurement gap requirement information is transformed, and determining that the UE is configured to provide the measurement gap requirement information in response to the handover of the UE from the one cell to the other cell is taking place, or in response to the last time the UE was The measurement gap requirement information is transformed compared to the reported information.

In a third implementation form of the first aspect of the present application, the controller is further configured to determine whether the UE has not reported any measurement gap requirement information to the first base station on the current RRC connection, and to determine that the UE is configured To provide the measurement gap requirement information in response to the UE not reporting any measurement gap requirement information to the first base station on the current RRC connection.

In a fourth implementation form of the first aspect of the present application, the RRC reconfiguration message includes at least one of a carrier aggregation (Carrier Aggregation, CA) parameter and a layer 1 parameter, and based on the carrier aggregation parameter and the layer 1 parameter At least one of them determines the measurement gap requirement information.

In the fifth implementation form of the first aspect of the present application in combination with the fourth implementation form of the first aspect of the present application, the CA parameters include a configuration for secondary cell (Secondary Cell, SCell) addition or release, and the layer 1 Parameters include Multiple-Input and Multiple-Output (MIMO) configuration.

In a sixth implementation form of the first aspect of the present application, the measurement gap requirement information indicates whether the UE needs a measurement gap to perform synchronization based on (Synchronization Signal Block, SSB) for each of the NR target frequency bands supported by the UE Measurement of signal blocks.

In the seventh implementation form of the first aspect of the present application in combination with the sixth implementation form of the first aspect of the present application, when the measurement gap is not required, the RRC reconfiguration complete message includes indicating Indicates whether the UE needs an interruption interval smaller than the measurement gap to perform the sync block based measurement for each of the NR target bands supported by the UE.

In the eighth implementation form of the first aspect of the present application, when a multi-radio access technology dual connection is configured for the UE for the UE to simultaneously communicate with the first base station serving as a secondary node (SN) and the first base station serving as a secondary node (SN) When the second base station of the master node (Master Node, MN) communicates with the second base station, the controller is further configured to send an RRC message including the measurement gap requirement information to the second base station through the wireless transceiver in response to and sending the RRC reconfiguration complete message including the measurement gap requirement information to the first base station.

In the ninth implementation form of the first aspect of the present application in combination with the eighth implementation form of the first aspect of the present application, the RRC message is compliant with the Third Generation Partnership Project (3GPP) for NR ) UE assistance information message of Technical Specification (TS) 38.331, and the RRC reconfiguration message is received from the first base station via Signaling Radio Bearer 3 (SRB3).

In a second aspect of the present application, a method is presented. The method includes the steps of: receiving, by the UE, an RRC reconfiguration message from a first base station; and sending, by the UE to the first base station, an RRC reconfiguration complete message including measurement gap requirement information in response to the UE being configured as Provide the measurement gap requirement information for the NR target frequency band.

In a first implementation form of the second aspect of the present application, the party further comprises the steps of: determining, by the UE, whether the RRC reconfiguration message includes an indicator for requesting the UE to report the measurement gap requirement information; and determining the The UE is configured to provide the measurement gap requirement information in response to the RRC reconfiguration message including the indicator for requesting the UE to report the measurement gap requirement information.

In a second implementation form of the second aspect of the present application, the party further comprises the step of: determining, by the UE, whether a handover of the UE from one cell to another cell is taking place, or with the whether the measurement gap requirement information is changed compared to the information last reported by the UE; and determining that the UE is configured to provide the measurement gap requirement information in response to the handover of the UE from the one cell to the other cell is in progress Occurs, or in response to a change in the MIG requirement information compared to the information last reported by the UE.

In a third implementation form of the second aspect of the present application, the party further comprises the steps of: determining by the UE whether the UE has not reported any measurement gap requirement information to the first base station on the current RRC connection; and determining the The UE is configured to provide the measurement gap requirement information in response to the UE not reporting any measurement gap requirement information to the first base station on the current RRC connection.

In a fourth implementation form of the second aspect of the present application, the RRC reconfiguration message includes at least one of a carrier aggregation parameter and a layer 1 parameter, and the measurement is determined based on at least one of the carrier aggregation parameter and the layer 1 parameter Information on gap requirements.

In the fifth implementation form of the second aspect of the present application in conjunction with the fourth implementation form of the second aspect of the present application, the CA parameters include configurations for SCell addition or release, and the layer 1 parameters include MIMO configurations.

In a sixth implementation form of the second aspect of the present application, the measurement gap requirement information indicates whether the UE needs measurement gaps to perform SSB-based measurements for each of the NR target frequency bands supported by the UE.

In the seventh implementation form of the second aspect of the present application in combination with the sixth implementation form of the second aspect of the present application, when the measurement gap is not required, the RRC reconfiguration complete message includes indicating whether the UE needs to be smaller than the measurement gap The break interval of the gap to perform the SSB-based measurements for each of the NR target bands supported by the UE.

In the eighth implementation form of the second aspect of the present application, the party further comprises the following steps: when the UE is configured with a multi-radio access technology dual connection for the UE to simultaneously communicate with the first base station serving as the SN and the first base station serving as the SN When the second base station of the MN communicates with the second base station, the UE sends the second base station to the second base station. The station sends an RRC message including the MGS requirement information in response to sending the RRC reconfiguration complete message including the MGS requirement information to the first base station.

In a ninth implementation form of the second aspect of the present application in conjunction with the eighth implementation form of the second aspect of the present application, the RRC message is a UE assistance information message according to 3GPP TS 38.331 for NR, and via the signalling SRB The RRC reconfiguration message is received from the first base station.

Other aspects and features of the present application will become apparent to those skilled in the art from reading the following description of specific embodiments of an apparatus and method for a UE to report NR measurement gap requirement information.

The present application proposes a user equipment and a method for reporting new radio measurement gap request information. By reporting measurement gaps during an RRC reconfiguration process, the benefits of reporting flexibility and reducing the message length required for reporting are achieved.

100: Wireless Communication Environment

110: User Equipment

120: Service Network

122: Core Network

121: Access the network

10: Wireless transceiver

11: Baseband processing equipment

12: RF Equipment

12: Antenna

30: Storage Devices

20: Controller

40: Display device

50: I/O devices

S310, S320, S510, S520, S530, S540, S550, S560, S570, S580, S590, S610, S620, S630, S710, S720, S730: Steps

The present application can be more fully understood by reading the following detailed description and examples with reference to the accompanying drawings, wherein: Fig. 1 is a block diagram of a wireless communication environment according to an embodiment of the present application; Fig. 2 is an illustration according to an embodiment of the present application A block diagram of a UE; FIG. 3 is a flowchart illustrating a method for a UE to report NR measurement gap requirement information according to an embodiment of the present application; FIG. 4 is an exemplary measurement gap and an exemplary measurement gap according to an embodiment of the present application. A schematic diagram of an interruption interval; FIG. 5 is a message sequence diagram for reporting NR measurement gap requirement information according to an embodiment of the present application; FIG. 6 is a report when MR-DC is configured according to an embodiment of the present application. Message sequence diagram for NR measurement gap requirement information; and FIG. 7 shows reporting of NR measurement gap requirement when MR-DC is configured according to another embodiment of the present application The message sequence diagram of the message.

The following description is intended to illustrate the rationale of the present application and should not be taken in a limiting sense. It should be understood that embodiments may be implemented in software, hardware, firmware, or any combination thereof. The terms "comprising", "comprising", "including" and/or "including", when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not exclude the presence or Add one or more other features, integers, steps, acts, elements, components and/or combinations thereof.

FIG. 1 is a block diagram of a wireless communication environment according to an embodiment of the present application.

As shown in FIG. 1, a wireless communication environment 100 may include a UE 110 and a serving network 120, wherein the UE 110 may wirelessly connect to the serving network 120 to obtain mobile services.

UE 110 may be a feature phone, smartphone, PC, laptop, or any wireless communication device that supports RAT technology (eg, 5G NR technology) used by service network 120 . In another embodiment, the UE may support more than one RAT. For example, the UE may support 5G NR technology as well as legacy 4G technology such as LTE/LTE-A/TD-LTE technology or WCDMA technology.

The service network 120 may include an access network 121 and a core network (Core Network, CN) 122 . The access network 121 is responsible for processing radio signals, terminating radio protocols, and connecting the UE 110 and the core network 122 . The core network 122 is responsible for performing mobility management, network-side authentication, and interfacing with public/external networks (eg, the Internet). Access network 121 and core network 122 may each include one or more network nodes for performing the described functions.

In one embodiment, the service network 120 may be a 5G NR network, and the access network 121 and the core network 122 may be Next Generation Radio Access Network (NG-RAN) and Next Generation Core Network (NG-CN, Next Generation Core Network).

The NG-RAN may include one or more base stations, eg, next generation NodeBs (gNBs), which support high frequency bands (eg, above 24 GHz), and each gNB may also include one or more transmitters A reception point (Transmission Reception Point, TRP), where each gNB or TRP can be called a 5G base station. Some gNB functions can be distributed among different TRPs, while other gNB functions can be centralized, preserving the flexibility and scope of specific deployments to meet the needs of specific situations.

The 5G base station may form one or more cells with different Component Carriers (CCs) for providing mobile services to the UE 110 . The UE 110 may camp on one or more cells formed by one or more gNBs or TRPs, and the cell on which the UE 110 camps may be referred to as a serving cell, wherein the serving cell includes a primary cell (Primary Cell, PCell) and one or more A secondary cell (Secondary Cell, SCell).

NG-CN is usually composed of various network functions, including Access and Mobility Function (AMF), Session Management Function (SMF), Policy Control Function (PCF), application function (Application Function, AF), Authentication Server Function (Authentication Server Function, AUSF), User Plane Function (User Plane Function, UPF) and User Data Management (User Data Management, UDM), where each network function can Implemented as a network element on dedicated hardware, or as an instance of software running on dedicated hardware, or as a virtual function that creates a physical entity on a suitable platform (eg, cloud infrastructure).

AMF provides UE-based authentication, authorization, mobility management, etc. The SMF is responsible for session management and assigning Internet Protocol (IP) addresses to the UE, and it also selects and controls the UPF for data transfer. If the UE has multiple sessions, different SMFs can be assigned to each session to manage the different SMFs individually and the different SMFs can provide different functions for each session. AF provides information about packet flow to PCF responsible for policy control in order to support service offerings Quality of Service (QoS). Based on this information, the PCF determines policies regarding mobility and session management so that the AMF and SMF function properly. AUSF stores data for UE authentication, while UDM stores UE's subscription data.

It should be understood that the wireless communication environment 100 described in the embodiment of FIG. 1 is for illustrative purposes only and is not intended to limit the scope of the present application. For example, the RAT used by the service network 120 may be 5G NR technology. That is, the service network 120 may be a 6G, 7G or 8G 3GPP network. Alternatively, the communication environment 100 may further include a 4G network using LTE/LTE-A/TD-LTE technology. For example, a 4G network may include Evolved-Universal Terrestrial Radio Access Network (E-UTRAN) and Evolved Packet Core (EPC). E-UTRAN may include one or more evolved NodeBs (eNBs) (eg, macro eNBs, femto eNBs, or pico eNBs), where each eNB may be referred to as a 4G base station. When the UE 110 is configured with Multi-RAT Dual Connectivity (MR-DC), the UE can communicate with both a 5G base station (eg, gNB) and a 4G base station (eg, eNB), where the 4G base station can communicate with It is configured as a master node (Master Node, MN), and the 5G base station can be configured as a secondary node (Secondary Node, SN).

FIG. 2 is a block diagram of a UE according to an embodiment of the present application.

As shown in FIG. 2 , the UE may include a wireless transceiver 10 , a controller 20 , a storage device 30 , a display device 40 , and an input/output (I/O) device 50 .

Wireless transceiver 10 may be configured to perform wireless transmission and reception to and from base stations of serving network 120 .

Specifically, the wireless transceiver 10 may include a baseband processing device 11 , a radio frequency (Radio Frequency, RF) device 12 and an antenna 13 . Wherein the antenna 13 may comprise an antenna array for beamforming.

The baseband processing device 11 is configured to perform baseband signal processing and to control communication between the user identification card (not shown) and the RF device 12 . The baseband processing device 11 may contain a plurality of hardware The bulk component is used to perform baseband signal processing, including analog-to-digital conversion (ADC)/digital-to-analog conversion (DAC), gain adjustment, modulation/demodulation, encoding/decoding, etc.

The RF device 12 can receive the RF wireless signal through the antenna 13, convert the received RF wireless signal into a baseband signal, and the baseband signal is processed by the baseband processing device 11, or the RF device 12 receives the baseband signal from the baseband processing device 11 and receives it. The baseband signal is converted into an RF wireless signal and then transmitted through the antenna 13 . RF device 12 may also contain a plurality of hardware devices to perform radio frequency conversion. For example, RF device 12 may include a mixer for multiplying the baseband signal by a carrier wave oscillating in the radio frequency of a supported RAT, which may be any radio frequency used in 5G NR technology (depending on the RAT used) ( For example, millimeter wave (30GHz-300GHz) may be 900MHz, 2100MHz, or 2.6GHz used in LTE/LTE-A/TD-LTE technology, or another radio frequency.

The controller 20 can be a general-purpose processor, a Micro Control Unit (MCU), an application processor, a Digital Signal Processor (DSP), a Graphics Processing Unit (GPU), or a holographic processing unit. Holographic Processing Unit (HPU), Neural Processing Unit (NPU), etc. The controller 20 includes various circuits that provide the following functions: data processing and calculation, and controlling the wireless transceiver 10 to perform wireless communication with the service network 120 , store data (eg, code) to and from storage device 30 (eg, code), send a series of frames of data (eg, represented as text messages, graphics, images, etc.) to the display Device 40 , and receives user input or output signals from I/O device 50 .

Specifically, the controller 20 can coordinate the above-mentioned operations of the wireless transceiver 10, the storage device 30, the display device 40 and the I/O device 50 for the method for the UE to report the NR measurement gap requirement information.

In another embodiment, the controller 20 may be incorporated into the baseband processing device 11 to function as a baseband processor.

As understood by those of ordinary skill in the art, the circuitry of controller 20 will typically include transistors configured in a manner to control the operation of the circuitry in accordance with the functions and operations described herein. It will be further understood that the specific structure or interconnection of the transistors is typically determined by a compiler, eg, a Register Transfer Language (RTL) compiler. An RTL compiler can be operated by a processor from a script that is very similar to assembly language code to compile the script into a form used for the layout or manufacture of the final circuit. In fact, RTL is best known for its role and use in facilitating the design process of electronic and digital systems.

The storage device 30 may be a non-transitory machine-readable storage medium, including memory (eg, flash memory or non-volatile random access memory (NVRAM)), magnetic storage devices (eg, , hard disk or magnetic tape), optical disc, or any combination thereof, for storing data, instructions and/or code for the application, protocol, and/or method by which the UE reports NR measurement gap requirement information.

The display device 40 can be a liquid crystal display (Liquid-Crystal Display, LCD), a light-emitting diode (Light-Emitting Diode, LED) display, an organic LED (Organic LED, OLED) or an electronic paper display (Electronic Paper Display EPD), etc., Used to provide display functionality. Alternatively, display device 40 may further include one or more touch sensors disposed on or below it for sensing contact, connection, or proximity of an object (eg, a finger or a stylus).

The I/O device 50 may include one or more buttons, a keyboard, a mouse, a touchpad, a camera, a microphone, and/or a speaker, etc., to serve as a Man-Machine Interface (MMI) for user interaction ).

It should be understood that the components described in the embodiment of FIG. 2 are for illustrative purposes only and are not intended to limit the scope of the present application.

For example, the UE may include more components, such as a power supply and/or a Global Positioning System (GPS) device, where the power supply may be to all other components of the UE Provides powered mobile/replaceable batteries, and GPS devices can provide UE location information for use by some location-based services or applications. Alternatively, the UE may include fewer components. For example, the UE may not include display device 40 and/or I/O device 50 .

FIG. 3 is a flowchart illustrating a method for a UE to report NR measurement gap requirement information according to an embodiment of the present application.

In this embodiment, the method for UE reporting NR measurement gap requirement information may be applied to UE (eg, UE 110 ) wirelessly connected to one or more base stations (eg, gNB and/or eNB) and by UE executes.

First, the UE receives a Radio Resource Control (RRC) reconfiguration message from the first base station (step S310).

Specifically, the RRC reconfiguration message may include at least a carrier aggregation (Carrier Aggregation, CA) parameter and/or a Layer 1 (Layer 1, L1) parameter, and the UE may determine the measurement gap requirement information based on the CA parameter and/or the L1 parameter. CA parameters may include configuration for Scell addition or release, and L1 parameters may include Multiple-Input and Multiple-Output (MIMO) configuration (eg, number of antennas and layers for MIMO).

Then, the UE sends an RRC reconfiguration complete message including the measurement gap requirement information to the first base station in response to the UE being configured to provide the measurement gap requirement information of the NR target frequency band (step S320).

Specifically, the measurement gap requirement information indicates whether the UE needs measurement gaps to perform synchronization signal block (SSB) based measurements for each of the NR target bands supported by the UE.

In addition to the measurement gap requirement information, when the measurement gap is not required, the RRC reconfiguration complete message may also include an indication of whether the UE needs an interruption interval smaller than the measurement gap to perform execution on each of the NR target bands supported by the UE. Based on SSB Measurement. It will be appreciated that interruptions due to RF switching for measurements can be a common problem. That is, even though the UE has 2 RF chains for communicating with the serving cell and the target cell at the same time, when the RF handover for measuring the target cell occurs, it still causes an interruption interval in communication with the serving cell.

FIG. 4 is a schematic diagram illustrating exemplary measurement gaps and interruption intervals in accordance with embodiments of the present application.

Referring back to FIG. 3, in one embodiment, the RRC reconfiguration message may include an indicator for requesting the UE to report measurement gap requirement information, and if the RRC reconfiguration message includes an indicator for requesting the UE to report measurement gap requirement information , it can be determined that the UE is configured to provide measurement gap requirement information.

In another embodiment, the UE may determine whether a handover of the UE from one cell to another is taking place based on the CA and/or L1 parameters included in the RRC reconfiguration message, or compared to the information reported by the UE last time, Measure whether the gap requirement information is changed. The UE may be determined to be configured to provide measurement gap requirement information if a handover of the UE from one cell to another is taking place, or if the measurement gap requirement information changes compared to what the UE last reported.

In another embodiment, the UE may determine whether the UE has not reported any measurement gap requirement information to the first base station on the current RRC connection, and if the UE has not reported any measurement gap requirement information to the first base station on the current RRC connection , it can be determined that the UE is configured to provide measurement gap requirement information.

FIG. 5 is a message sequence diagram for reporting NR measurement gap requirement information according to an embodiment of the present application.

In step S510, the UE receives an RRC reconfiguration message from the gNB. Specifically, the RRC reconfiguration message includes CA and/or L1 parameters. In addition to CA and/or L1 parameters, the RRC reconfiguration message may also include an indicator for requesting the UE to report measurement gap requirement information. E.g, The indicator for requesting the UE to report the measurement gap requirement information may be included in the "NeedForGapsConfig" information element (Information Element, IE) of the RRC reconfiguration message.

In step S520, the UE applies the CA and/or L1 parameters, and determines that the measurement gap requirement information is changed compared to the information reported by the UE last time.

In step S530, the UE sends an RRC reconfiguration complete message including the measurement gap requirement information to the gNB. Specifically, the measurement gap requirement information may be included in the "NeedForGapsInfoNR" IE of the RRC reconfiguration complete message.

In step S540, the UE receives an RRC reconfiguration message from the gNB. Specifically, the RRC reconfiguration message includes information for measurement gap addition or release.

In step S550, the UE configures the measurement gap according to the information for adding or releasing the measurement gap.

In step S560, the UE sends an RRC reconfiguration complete message to the gNB.

In step S570, the gNB sends an RRC reconfiguration message to the UE in response to the decision to trigger the handover of the UE from the gNB to the target gNB. Specifically, the RRC reconfiguration message includes handover configuration. For example, the handover configuration may be included in the "reconfigurationWithSync" IE of the RRC reconfiguration message, where the "reconfigurationWithSync" IE includes the random access configuration for handover.

In step S580, the UE determines that handover is taking place based on the handover configuration, and applies the handover configuration.

In step S590, the UE sends an RRC reconfiguration complete message including measurement gap requirement information to the target gNB to complete the handover. Specifically, the measurement gap requirement information may be included in the "NeedForGapsInfoNR" IE of the RRC reconfiguration complete message.

Please note that in FIG. 5, steps S540~S590 are optional. Specifically, if a measurement gap needs to be added or released, steps S540 to S560 are performed, and if a handover occurs, steps S540 to S560 are performed. Go to steps S570 to S590.

In view of the foregoing embodiments of Figures 3 to 5, it should be understood that the present application allows the UE to report NR measurement gap requirement information during the RRC reconfiguration process. Specifically, all NR bands supported by the UE are reported in the measurement gap requirement information. Advantageously, the reported information contains only enough information, which can reduce the size of the information to be reported and can provide a transformation of the measurement target. In contrast, in LTE Release 14, the reported measurement gap requirement information includes only the gap requirement for each carrier of the serving band (ie, too little information may cause the measurement gap requirement to change every time the measurement target is changed). In conventional LTE, the reported measurement gap requirement information includes the gap requirement for each carrier of all supported bands (ie, the reported information size is too large).

FIG. 6 is a message sequence diagram for reporting NR measurement gap requirement information when MR-DC is configured according to an embodiment of the present application.

In step S610, the UE receives the RRC reconfiguration message from the SN via the Signaling Radio Bearer 3 (SRB3). Specifically, the RRC reconfiguration message includes CA and/or L1 parameters that result in the transformation of the measurement gap requirement information. For example, the secondary cell group (SCG) band combination (BC) is changed due to the application of CA and/or L1 parameters, and the change of the SCG BC further results in the change of the measurement gap requirement information.

In step S620, the UE updates the measurement gap requirement information based on the CA and/or L1 parameters, and sends an RRC reconfiguration complete message including the measurement gap requirement information to the SN. Specifically, the measurement gap requirement information may be included in the "NeedForGapsInfoNR" IE of the RRC reconfiguration complete message.

In step S630, the SN forwards the UE's MIG requirement information to the MN through an inter-node message. Specifically, the inter-node message can be redefined to communicate the UE's measurement gap requirement information between the SN and the MN. For example, the inter-node message may be referred to as a UE Information message.

FIG. 7 is a message sequence diagram for reporting NR measurement gap requirement information when MR-DC is configured according to another embodiment of the present application.

In step S710, the UE receives an RRC reconfiguration message from the SN via SRB3. Specifically, the RRC reconfiguration message includes CA and/or L1 parameters that result in the transformation of the measurement gap requirement information.

In step S720, the UE updates the measurement gap requirement information based on the CA and/or L1 parameters, and sends an RRC reconfiguration complete message including the measurement gap requirement information to the SN. Specifically, the measurement gap requirement information may be included in the "NeedForGapsInfoNR" IE of the RRC reconfiguration complete message.

In step S730, the UE also sends an RRC message including the measurement gap requirement information to the MN. For example, the RRC message may be a UE assistance information message compliant with 3GPP TS 38.331 for NR.

Note that the 3GPP specifications mentioned herein are for teaching the spirit of this application, and this application is not limited thereto.

In view of the aforementioned embodiments in Figs. 6 to 7, it can be understood that in the present invention in a scenario where MR-DC is configured, if the measurement gap requirement information is reported in response to the RRC reconfiguration message sent by the SN, the MGA requirement information is reported by allowing The SN or the UE provides the same measurement gap requirement information to the MN, which realizes the synchronization of the measurement gap requirement information of the UE between the SN and the MN.

While the application has been described by way of example and in terms of preferred embodiments, it should be understood that the application is not limited thereto. Various changes and modifications can still be made by those of ordinary skill in the art without departing from the scope and spirit of the present application. Accordingly, the scope of this application should be defined and protected by the following claims and their equivalents.

The use of ordinal terms such as "first," "second," etc. to rhetoric within a claim element does not, by itself, denote one claim element relative to another. Claims have any priority, priority or order or chronological order of execution of methods, however, such ordinal terms such as "first", "second", etc. are only used as labels to distinguish one patent application with the same name An element is distinguished from another element with the same name (but using an ordinal number) to distinguish a claimable element.

S310, S320: Steps

Claims (10)

A user equipment for reporting new radio measurement gap request information, comprising: a wireless transceiver configured to perform wireless transmission and reception to and from a first base station; and a controller coupled to At the wireless transceiver, and the controller is configured to: receive a RRC reconfiguration message from the first base station via the wireless transceiver, and send a measurement including a measurement to the first base station via the wireless transceiver A radio resource control reconfiguration complete message of gap requirement information in response to the measurement gap requirement information for which the user equipment is configured to provide a new radio target frequency band, wherein when the measurement gap is not required, the radio resource control reconfiguration The configuration complete message includes information indicating whether the user equipment needs an interruption interval smaller than the measurement gap to perform synchronization signal block based measurements for each of the new radio target bands supported by the user equipment. The user equipment for reporting new radio measurement gap request information of claim 1, wherein the controller is further configured to determine whether the radio resource control reconfiguration message includes a request for the UE to report the measurement gap request information an indicator, and determining that the UE is configured to provide the MGS requirement information in response to the RRC reconfiguration message including the indicator for requesting the UE to report the MGS requirement information. The user equipment reporting new radio measurement gap request information as claimed in claim 1, wherein the controller is further configured to determine whether a handover of the user equipment from one cell to another cell is occurring or is not related to the use of whether the measurement gap requirement information is changed compared to the information last reported by the user equipment, and determining that the user equipment is configured to provide the measurement gap requirement information in response to the user equipment moving from the one cell to the other The handover of cells is taking place, or in response to a change in the MIG requirement information compared to the information last reported by the UE. A user reporting NRG request information as described in claim 1 apparatus, wherein the controller is further configured to determine whether the user equipment has not reported any measurement gap requirement information to the first base station on a current RRC connection, and to determine that the user equipment is configured to provide the measurement gap requirement information in response to the user equipment not reporting any measurement gap requirement information to the first base station on the current RRC connection. The user equipment for reporting new radio measurement gap request information as claimed in claim 1, wherein the RRC reconfiguration message includes at least one of a carrier aggregation parameter and a layer 1 parameter, and based on the carrier aggregation parameter and the At least one of the layer 1 parameters determines the measurement gap requirement information. The user equipment for reporting NRMG request information as claimed in claim 5, wherein the carrier aggregation parameter includes a configuration for a secondary cell addition or release, and the layer 1 parameter includes a multiple-input multiple-output configuration. The user equipment reporting new radio measurement gap request information as recited in claim 1, wherein the measurement gap requirement information indicates whether the user equipment needs a measurement gap for the new radio target frequency band supported by the user equipment Each of them performs the synchronization signal block-based measurement. The user equipment that reports NRMG request information as described in claim 1, wherein when the user equipment is configured with a multi-RAT dual connection for the user equipment to simultaneously function as a secondary node When the first base station communicates with a second base station, which is a master node, the controller is further configured to send a radio including the measurement gap requirement information to the second base station via the wireless transceiver a resource control message in response to sending the RRC reconfiguration complete message including the measurement gap requirement information to the first base station. The user equipment reporting NRMG request information as recited in claim 8, wherein the RRC message conforms to a UE assistance information message of a 3GPP specification for New Radio, and from the first base via a signaling radio bearer 3 The base station receives the RRC reconfiguration message. A method for reporting new radio measurement gap request information, comprising: receiving, by a user equipment from a first base station, a radio resource control reconfiguration message; and sending, by the user equipment to the first base station, a measurement gap including a measurement gap A radio resource control reconfiguration complete message of demand information in response to the measurement gap demand information that the user equipment is configured to provide a new radio target frequency band, wherein the radio resource control reconfiguration is performed when the measurement gap is not required The completion message includes information indicating whether the user equipment needs an interruption interval smaller than the measurement gap to perform sync block based measurements in each of the new radio target bands supported by the user equipment.

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