CN119967507A - Information element configuration method for cell switching - Google Patents

Abstract

The present application provides an information element configuration method for cell switching. Applied to the field of communication technology; the layer 1 measurement resource sent by the CU is configured in the first IE or at least one second IE, the first IE supports carrying the layer 1 measurement resources of all candidate cells, and the second IE supports carrying the layer 1 measurement resources of one candidate cell; for the first IE, the DU configures a third IE to indicate the layer 1 execution conditions of all candidate cells, and the DU sends the third IE and the IE carrying the layer 3 execution conditions to the UE, saving the IE overhead of the UE and the DU for cell switching; for at least one second IE, the DU configures a fourth IE for each second IE, and the layer 1 execution conditions of different candidate cells are configured in different fourth IEs, so that the UE can selectively parse part of the fourth IE to perform cell switching based on the layer 1 execution conditions of some candidate cells, so that the time consumed in the cell switching process can be saved.

Description

Information element configuration method applied to cell switching

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method for configuring an information element applied to cell handover.

Background

The cell switching refers to a process of switching a terminal device (UE) from a currently accessed cell to other cells, wherein the UE performs signaling interaction with a network device to implement a cell switching process, and the network device is deployed by adopting a two-stage access network architecture of a Centralized Unit (CU) -a distribution Unit (DistributedUnit) so as to better meet requirements of various scenes and applications.

In the existing cell handover procedure, the network device configures an L1 execution condition for a layer 1 (layer 1, L1) measurement resource and an L3 execution condition for a layer 3 (layer 3, L3) measurement resource for the UE, so that the UE performs cell handover based on the L1 execution condition and the L3 execution condition. In the above-described cell handover procedure, transmission of L1 measurement resources, L1 execution conditions, and L3 execution conditions is required between the UE, the CU of the network device, and the DU of the network device.

However, in the related art, there is no method related to transmitting the L1 measurement resource, the L1 execution condition, and the L3 execution condition.

Disclosure of Invention

The application provides an information element configuration method applied to cell switching, which configures information elements for transmission of layer 1 measurement resources, layer 1 execution conditions and layer 3 execution conditions in a cell switching flow so as to transmit the layer 1 measurement resources, the layer 1 execution conditions and the layer 3 execution conditions through the information elements. Wherein, the layer 1 measurement resource may be transmitted using the first IE or at least one second IE. The DU configures a third IE for the first UE or at least one fourth IE for the at least one second IE, with the layer 1 execution condition carried by the third IE or the at least one fourth IE. Thus, IE overhead of the cell switching process or time consumption of the cell switching process can be saved.

In a first aspect, the application provides an information element configuration method applied to cell handover, comprising the steps of distributing a first Information Element (IE) or at least one second IE) sent by a DU receiving Centralized Unit (CU), wherein the first IE carries first information, the first information indicates first layer 1 measurement resources of all candidate cells, the second information carries second information, the second information indicates second layer 1 measurement resources of the first candidate cells, if the DU receives the first information, the DU generates a third IE and sends the third IE to the CU, the third information indicates a first layer 1 execution condition set, the first layer 1 execution condition set comprises first layer 1 execution conditions corresponding to each candidate cell, the first layer 1 execution condition set is configured for the first layer 1 measurement resources of all candidate cells indicated by the first information, if the DU receives the second layer 1 measurement resources corresponding to the candidate cells, the DU generates a third IE and sends the third IE to the CU, the third information indicates the fourth information, the third information is carried by the third information, the third information indicates the first layer 1 execution condition set, the first layer 1 execution condition set comprises the first layer 1 execution conditions corresponding to each candidate cell, the first layer 1 measurement resources of all candidate cells indicated by the first candidate cells are configured for the fourth information, if the at least one second CU receives the second information, the fourth information is configured for the fourth candidate cells, the fourth information corresponding to the fourth information, the fourth information is configured for the fourth candidate cells, and fourth information is carried by the fourth information corresponding to the fourth information, and fourth information is configured for the fourth information corresponding to all candidate information 1 IE is carried by the fourth information corresponding to all candidate cells, the UE performs cell switching based on the switching related message, wherein the switching related message comprises the third IE and at least one fifth IE, or the switching related message comprises the at least one fourth IE and the at least one fifth IE, all the fifth IEs are in one-to-one correspondence with all the candidate cells, the fifth IE carries fifth information, the fifth information indicates a layer 3 execution condition that the CU is a layer 3 measurement resource configuration of a target candidate cell, and the target candidate cell is a candidate cell corresponding to the fifth IE carrying the fifth information.

In some embodiments, if the first layer 1 execution condition set includes at least one first handover trigger event customized by the DU, the third information is the at least one first handover trigger event, and if the first layer 1 execution condition set includes at least one second handover trigger event, the third information is at least one first bias condition, wherein the at least one second handover trigger event is determined by the DU based on at least one layer 1 measurement report event and at least one layer 1 measurement report event of the mobility management LTM triggered by layer 1/layer 2, which correspond to the first bias conditions respectively.

In some embodiments, the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicates at least one first layer 1 measurement resource, one candidate cell corresponds to one or more first layer 1 measurement resources, the first handover trigger event comprises a plurality of first condition parameters, wherein each first condition parameter comprises at least one first parameter value, for each first condition parameter, the at least one first parameter value of the first condition parameter corresponds to the at least one first layer 1 measurement resource one by one, for each first layer 1 measurement resource under each first handover trigger event, the first layer 1 measurement resource indicates a first sub-trigger event corresponding to the first handover trigger event under the first handover trigger event, for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises at least one first parameter value, for each first condition parameter value, for each first handover trigger event, the at least one first parameter value corresponds to the at least one first layer 1 measurement resource one first parameter value, and the at least one first layer 1 measurement resource one first parameter value corresponds to one, for each first sub-trigger event under each first handover trigger event, the first sub-trigger event corresponding to the first sub-trigger event comprises a first sub-trigger event corresponding to the first sub-trigger event, and the first sub-trigger event corresponding to the first sub-trigger event 1 value respectively, and the first sub-trigger event corresponding to the first sub-trigger event value under the first sub-trigger event 1 measurement value indicates the first sub-trigger event.

In some embodiments, the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicates at least one first layer 1 measurement resource, the at least one layer 1 measurement reporting event corresponds to the at least one first bias condition one by one, the layer 1 measurement reporting event comprises a plurality of second condition parameters, the first bias condition corresponding to the layer 1 measurement reporting event comprises a plurality of third condition parameters, wherein each second condition parameter comprises at least one third parameter value, each third condition parameter comprises at least one fourth parameter value, the plurality of second condition parameters corresponds to the plurality of third condition parameters one by one, at least one third parameter value for each second condition parameter and the corresponding third condition parameter, at least one fourth parameter value for the third condition parameter corresponds to the at least one first layer 1 measurement resource, each first under-layer 1 measurement parameter corresponding to the layer 1 measurement reporting event comprises a plurality of third condition parameters, wherein each second under-layer 1 measurement parameter corresponding to the layer 1 measurement reporting event comprises at least one third parameter value, each second under-layer 1 measurement parameter corresponding to the first trigger event candidate zone comprises a plurality of first trigger condition parameters corresponding to the first trigger event, each candidate under-layer 1 measurement parameter comprises a candidate zone corresponding to the first trigger condition parameter and all the first trigger zone and all the candidate first trigger condition parameters corresponding to the first trigger zone 1, the candidate zone and each first trigger zone under the first trigger condition parameter comprises at least one first trigger zone and all the first trigger zone and the candidate zone is at least one first trigger condition parameter corresponding to the first trigger value, all fifth parameter values under the second switching trigger event and all third parameter values corresponding to the first layer 1 measurement resources indicate a fourth sub-trigger event of the first layer 1 measurement resources under the second switching trigger event; for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises a fourth sub-trigger event corresponding to all first layer 1 measurement resources of the candidate cell under each second handover trigger event.

In some embodiments, the third IE is configured in a channel state information report configuration LTM-CSI-ReportConfig IE for layer 1/layer 2 triggered mobility management, wherein the LTM-CSI-ReportConfig IE includes an eighth IE, the eighth IE is an IE carrying the at least one layer 1 measurement reporting event, the eighth IE does not include the third IE if the first layer 1 execution condition set includes the at least one first handover trigger event of the DU customization, and the eighth IE includes the third IE if the first layer 1 execution condition set includes the at least one second handover trigger event, and the fourth IE is configured in a channel state information measurement configuration CSI-meascon fig IE.

In some embodiments, the second layer 1 execution condition includes at least one third handover trigger event customized by the DU, and the fourth information includes the at least one third handover trigger event.

In a second aspect, the application provides an information element configuration method applied to cell handover, comprising the steps that a centralized unit CU sends a first information element IE or at least one second IE to a distribution unit DU, wherein the first IE carries first information which indicates first layer 1 measurement resources corresponding to all candidate cells, the second information carries second information which indicates second layer 1 measurement resources corresponding to one candidate cell, the first IE is used for generating a third IE by the DU, the at least one second IE is used for generating at least one fourth IE, wherein the third IE carries third information, the third information indicates a first layer 1 execution condition set which includes first layer 1 execution conditions corresponding to each candidate cell respectively, the first layer 1 execution condition set is configured for the first layer 1 measurement resources of the candidate cell, the second CU and the fourth UE are used for generating a fourth IE, the at least one second IE is used for generating at least one fourth IE by the at least one second CU, wherein the third IE carries third information, the third information indicates a first layer 1 execution condition set which includes first layer 1 execution conditions corresponding to each candidate cell, the first layer 1 execution conditions set is configured for the first layer 1 measurement resources of the first candidate cell, the first layer 1 measurement resources is used for the first candidate cell, the second UE is configured for the fourth handover, the fourth UE is configured for the fourth information corresponding to the fourth information, the fourth UE is configured for the fourth information, the fourth information is configured for the fourth information, and the fourth information is configured for the fourth information is, or the handover related message includes the at least one fourth IE and the at least one fifth IE, all fifth IEs are in one-to-one correspondence with all candidate cells, the fifth IEs carry fifth information, the fifth information indicates that the CU is a layer 3 execution condition of layer 3 measurement resource configuration of a target candidate cell, wherein the target candidate cell is a candidate cell corresponding to the fifth IEs carrying the fifth information.

In some embodiments, for each candidate cell and a fifth IE corresponding to the candidate cell, if a layer 3 execution condition of the candidate cell is at least one fourth handover trigger event customized by the CU, fifth information carried by the fifth IE is the at least one fourth handover trigger event, and if the layer 3 execution condition of the candidate cell includes at least one fifth handover trigger event, the fifth information includes at least one second bias condition, where the at least one fifth handover trigger event is determined by the CU based on the second bias condition corresponding to at least one layer 3 measurement reporting event and the at least one layer 3 measurement reporting event of the candidate cell, respectively.

In some embodiments, for each fifth IE, a candidate cell corresponding to the fifth IE, and fifth information corresponding to the fifth IE, if the fifth information includes at least one fourth handover trigger event, the fifth IE is configured outside a sixth IE, where the sixth IE is an IE carrying at least one layer 3 measurement reporting event of the candidate cell, and if the fifth information is the second bias condition, the fifth IE is configured in the sixth IE.

In some embodiments, for each fifth IE and a sixth IE corresponding to the fifth IE, the fifth IE is configured to send first association information to the UE through the DU when sending the fifth IE, wherein the first association information is association information between the fifth IE and layer 3 measurement resources of a candidate cell corresponding to the fifth IE, so that the UE determines, based on the first association information, layer 3 measurement resources required to use layer 3 execution conditions in the fifth IE, and when the fifth IE is configured in the sixth IE, the CU sends second association information to the UE through the DU when sending the fifth IE, wherein the second association information is association information of layer 3 measurement resources of the candidate cell of the sixth IE, so that the UE determines, based on the second association information, layer 3 measurement resources required to use layer 3 execution conditions in the fifth IE.

In a third aspect, the present application provides an IE configuration apparatus, including a module configured to execute the IE configuration method described in the first aspect and any embodiment of the first aspect.

In a fourth aspect, the present application provides an IE configuration apparatus, including a module configured to execute the IE configuration method described in the second aspect and any embodiment of the second aspect.

In a fifth aspect, the present application provides a communication device, including a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the program to implement the IE configuration method according to the first aspect and any embodiment of the first aspect.

In a sixth aspect, the present application provides a communication device, including a memory and a processor, where the memory stores a computer program that can be run on the processor, and the processor executes the program to implement the IE configuration method according to the second aspect and any embodiment of the second aspect.

In a seventh aspect, the present application provides a computer readable storage medium having stored thereon a computer executable program or instructions which, when executed by a processor, cause a network device to implement a method according to any embodiment of the first aspect and a method according to any embodiment of the second aspect.

In an eighth aspect, the present application provides a chip comprising an interface circuit for receiving signals from or transmitting signals to other chips than the chip, and a logic circuit for implementing the method of any one of the embodiments of the first and second aspects.

In a ninth aspect, the application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any embodiment of the first aspect and the method of any embodiment of the second aspect.

The application provides an IE configuration method applied to cell switching. The layer 1 measurement resources sent by the CU can be configured in a first IE or at least one second IE, the first IE supports carrying all candidate cell layer 1 measurement resources, the second IE supports carrying one candidate cell layer 1 measurement resource, a third IE is configured for the first IE to indicate the layer 1 execution conditions of all candidate cells, and a fifth IE carrying layer 3 execution conditions is sent to the UE, so that the cost of the UE and the DU for carrying out cell switching based on the layer 1 and layer 3 execution conditions is saved, a fourth IE is configured for each second IE for the DU, and the layer 1 execution conditions of different candidate cells are configured in different fourth IEs, so that the UE can selectively analyze part of the fourth IEs to carry out cell switching based on the layer 1 execution conditions of part of the candidate cells, and the time consumption in the cell switching process can be saved.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a signaling interaction diagram of an IE configuration method provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of an IE configuration device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an IE configuration device according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes an association of associated objects, meaning that there may be three relationships, e.g., A and/or B, and that there may be A alone, while A and B are present, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one of a alone, b alone or c alone may represent a alone, b alone, c alone, a combination of a and b, a combination of a and c, b and c, or a combination of a, b and c, wherein a, b, c may be single or plural. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "center," "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

The terms "connected," "connected," and "connected" are to be construed broadly and refer, for example, to a physical connection, an electrical connection or a signal connection, for example, to a direct connection, i.e., a physical connection, or an indirect connection via at least one element therebetween, and to a communication between two elements, as long as the electrical connection is achieved, and to a signal connection, for example, via a medium other than a circuit. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the related cell handover procedure, the network device configures an L1 execution condition for the L1 measurement resource and an L3 execution condition for the L3 measurement resource for the UE, so that the UE performs cell handover based on the L1 execution condition and the L3 execution condition.

Specifically, a CU in network equipment configures L1 measurement resources for a UE, the CU sends the L1 measurement resources to a DU in the network equipment, the DU configures L1 execution conditions for the L1 measurement resources and sends the L1 execution conditions to the CU, the CU generates L3 execution conditions for the L3 measurement resources, and sends the L3 execution conditions and the L1 execution conditions to the UE served by the network equipment through the DU, so that the UE performs cell switching based on the L1 execution conditions and/or the L3 execution conditions.

However, in the existing scheme, a method of transmitting the L1 measurement resource, the L1 execution condition, and the L3 execution condition is not involved.

Based on this, the present application provides an IE configuration method applied to cell handover, hereinafter, the "IE configuration method applied to cell handover" will be simply referred to as "IE configuration method". In the cell handover procedure, information elements are configured for transmission of layer 1 measurement resources, layer 1 execution conditions, and layer 3 execution conditions to transmit the layer 1 measurement resources, layer 1 execution conditions, and layer 3 execution conditions through the information elements. Wherein, the layer 1 measurement resource may be transmitted using the first IE or at least one second IE. The DU configures a third IE for the first UE or at least one fourth IE for the at least one second IE, with the layer 1 execution condition carried by the third IE or the at least one fourth IE. Thus, IE overhead of the cell switching process or time consumption of the cell switching process can be saved.

First, an application scenario of the IE configuration method provided by the embodiment of the present application is described through fig. 1.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system 1 of the present application may include a network device 10 and a UE 20.

Wherein, the network device 10 is a network device to which the UE 20 is currently connected, and the network device 10 provides network services for the UE 20.

Wherein the network device comprises one CU 11 and a plurality of DUs. Illustratively, the plurality of DUs are DU 12, DU 13 and DU 14, respectively.

The CU 11 is mainly configured to process non-real-time protocols and services, and implement a packet data convergence protocol (PACKET DATA convergence protocol, PDCP) layer and the above radio protocol functions. The CU 11 serves as a central processing unit, and may be separately connected to a plurality of DUs, thereby realizing unified and centralized management of the plurality of DUs.

One DU manages one or more cells, and UE 20 may access any one cell. The cell accessed by the UE is called a serving cell, and the DU for managing the serving cell is called a serving DU. Illustratively, the service DU is DU 12 of FIG. 1.

The IE configuration method provided by the present application may be applied to various communication systems, where the communication system may be a fourth generation mobile communication system (the 4th generation mobile communication system,4G), a fifth generation mobile communication technology (5 th-Generation wireless communication technology, 5G) New Radio (NR) system or future communication systems, and may also be other various wireless communication systems, such as a narrowband internet of things (Narrow Band-Internet ofThings, NB-IoT) system, a global system for mobile communication (Global System ofMobilecommunication, GSM), an enhanced data rate GSM evolution (ENHANCEDDATA RATE for GSM Evolution, EDGE) system, a wideband Code Division multiple access (Wideband Code Division MultipleAccess, WCDMA) system, a Code Division MultipleAccess, CDMA (Code Division 392000) system, a Time Division synchronous Code Division multiple access (Time Division multiple access-Synchronization Code Division MultipleAccess, TD-SCDMA) system, a general packet Radio Service (GENERAL PACKET Radio, GPRS) system, a long term evolution (Long Term Evolution, LTE) system, a UMTS frequency Division duplex (Frequency Division Duplex, FDD) system, an LTE Time Division duplex (Time Division Duplex, TDD) and a general mobile communication system (Universal Mobile Telecommunication System, etc.

The network device in the present application may be a base station, or an access point, or an access network device. For example, the network Device may be a knapsack base station, a satellite, an unmanned aerial vehicle, a base station (base transceiver station, BTS) in global mobile communications (global system ofmobile communication, GSM) or code division multiple access (code division multiple access, CDMA), a base station (NodeB, NB) in wideband code division multiple access (wideband code division multiple access, WCDMA), an evolved base station (evolutional node B, eNB or eNodeB) in long term evolution (long term evolution, LTE), or a V2X (vehicular to everything, vehicle-to-Device, D2D), a terminal or relay station or access point that performs the functions of a base station in Machine-to-Machine (M2M) communication, or a base station in a 5G mobile communication system, such as a gNB, or the like, or a base station in a 6G mobile communication system, without limitation.

A UE in the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The UE may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (session initiationprotocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a car mounted device or a wearable device, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self-driving), a wireless terminal in telemedicine (remote medium), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), a terminal in a 5G mobile communication system, a terminal in a 6G mobile communication system, a future communication system, or the like. In addition, the UE may also be a terminal device in an internet of things (internet ofthings, ioT) system.

The following describes in detail the IE configuration method provided in the embodiment of the present application with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a signaling interaction diagram of an IE configuration method according to an embodiment of the present application. In fig. 2, UE is UE 20 shown in fig. 1, DU is DU 12 shown in fig. 1, and CU is CU 11 shown in fig. 1.

As shown in fig. 2, the IE configuration method includes:

s201, the CU sends a first IE or at least one second IE to the DU.

Accordingly, the DU receives the first IE or at least one second IE sent by the CU.

The first IE carries first information, where the first information indicates first L1 measurement resources of all candidate cells.

Specifically, the first information includes at least one first L1 measurement resource index, and at least one first L1 measurement resource is different from each other. One first L1 measurement resource index indicates one first L1 measurement resource, and one candidate cell corresponds to one or more first L1 measurement resource indexes.

The first IE is an IE supporting all first L1 measurement resource indexes carrying all candidate cells.

After accessing the serving cell, the UE sends an L3 measurement report of the neighboring cell to the CU through the DU. The CU determines candidate cells from the neighboring cells to allow the UE access based on the L3 measurement reports of the neighboring cells.

Wherein the number of candidate cells is greater than or equal to 1. The number of first L1 measurement resources is greater than or equal to 1.

In some embodiments, the first IE may be a protocol-specified channel state information resource configuration LTM-CSI-ResourceConfig IE for layer 1/layer 2 triggered mobility management. The first L1 measurement resource is an L1 measurement resource configured by the CU for at least one L1 measurement reporting event of layer 1/layer 2 triggered mobility (L1/L2-TRIGGERED MOBILITY, LTM) measurements.

One candidate cell corresponds to one or more first L1 measurement resources.

Each first L1 measurement resource may be an SSB resource or a CSI resource, and an index of the first L1 measurement resource may be a synchronization signal and physical broadcast channel block (SSB) index or a channel state Information (CHANNEL STATE Information, CSI) index.

The second IE carries second information indicating a second L1 measurement resource of one candidate cell.

Specifically, the second information includes at least one second L1 measurement resource index, and the at least one second L1 measurement resource index is different from each other. One second L1 measurement resource index indicates one second L1 measurement resource, and one candidate cell corresponds to one or more second L1 measurement resource indexes.

The second IE is an IE supporting all second L1 measurement resource indexes of one candidate cell, one second L1 measurement resource corresponds to one second L1 measurement resource index, and at least one second IE corresponds to all candidate cells one by one.

In some embodiments, the second IE is a DU custom IE, which may be named CLTM-CSI-ResourceConfig IE.

In some embodiments, the second IE also carries an identification of the second IE.

One candidate cell corresponds to one or more second L1 measurement resources.

Each of the second L1 measurement resources may be an SSB resource or a CSI resource, and the index of the second L1 measurement resource may be an SSB index or a CSI index.

In some embodiments, for each candidate cell, the first L1 measurement resource corresponding to the candidate cell is the same as the second L1 measurement resource corresponding to the candidate cell. For each first L1 measurement resource and a second L1 measurement resource identical to the first L1 measurement resource, the index of the first L1 measurement resource corresponding to the candidate cell and the index of the second L1 measurement resource corresponding to the candidate cell may be identical or different.

The first IE or the at least one second IE may be carried in a UE context setup request (UE CONTEXT SETUP REQUEST) message.

S202, the DU judges whether the first IE or at least one second IE is received, if the first IE is received, S203 to S204 are executed, and if the second IE is received, S205 to S206 are executed.

The DU may parse the UE context setup request (UE CONTEXT SETUP REQUEST) message, determining UE CONTEXT SETUP REQUEST whether the message carries a first IE or at least one second IE.

If UE CONTEXT SETUP REQUEST message carries the first IE, DU performs S203 to S204. If UE CONTEXT SETUPREQUEST message carries at least one second IE, DU performs S205 to S206.

Wherein the first IE is used for the DU to generate a third IE and the at least one second IE is used for the DU to generate at least one fourth IE.

It can be seen that the types of IEs used to carry the L1 measurement resource index are different, and the IEs used by the DU to transmit the L1 execution conditions are different.

S203, the DU generates a third IE.

The third information indicates a first L1 execution condition set, wherein the first L1 execution condition set comprises a first L1 execution condition corresponding to each candidate cell respectively, and the first L1 execution condition set is determined based on first L1 resources of all candidate cells indicated by the first information.

The first L1 execution condition set indicated by the third IE comprises at least one first switching trigger event customized by DU, or the first L1 execution condition set comprises at least one second switching trigger event which is determined by DU based on first bias conditions corresponding to at least one L1 measurement report event and at least one L1 measurement report event of the LTM respectively.

When the first L1 execution condition set indicated by the third IE includes at least one first handover trigger event customized by the DU, third information carried by the third IE is the at least one first handover trigger event, and the third IE may be named CLTM-TriggerEventConfig, where the third IE is configured in a channel state information report configuration LTM-CSI-ReportConfig IE specified by a protocol for layer 1/layer 2 triggered mobility management. The LTM-CSI-ReportConfig IE includes an eighth IE, which is an IE carrying at least one layer 1 measurement reporting event.

When the first L1 execution condition set includes at least one second handover trigger event, the third information carried by the third IE includes at least one first bias condition. The third IE is configured in the protocol-specified channel state information reporting configuration LTM-CSI-ReportConfig IE for layer 1/layer 2 triggered mobility management, and may be named CLTM-Offset.

In case the first layer 1 execution condition set includes at least one first handover trigger event of DU customization, the eighth IE does not contain the third IE. In case the first layer 1 execution condition set contains at least one second handover trigger event, the eighth IE contains a third IE.

S204, the DU sends a third IE to the CU.

Accordingly, the CU receives the third IE.

The third IE is carried in a downlink radio resource control reconfiguration (RRC Reconfiguration) message.

S205, the DU generates at least one fourth IE.

Wherein, all candidate cells, all second IEs, all fourth IEs, fourth information carried by all fourth IEs, and second L1 execution conditions indicated by all fourth information are in one-to-one correspondence.

For each fourth IE, the fourth IE carries fourth information, the fourth information indicates a second L1 execution condition, the second L1 execution condition is configured for second L1 measurement resources of a candidate cell indicated by target second information, and the target second information is second information carried in a second IE corresponding to the fourth IE. That is, the fourth IE indicates the second L1 execution condition of the corresponding candidate cell.

The second L1 execution condition indicated by the fourth IE includes at least one third handover trigger event that is DU custom.

The fourth IE may be named CLTM-CSI-Config. The fourth IE contains custom CLTM-CSI-ResourceConfigId-r19 IE, CLTM-CSI-ConfigId-r19 IE, and CLTM-TriggerEventConfig IE. Wherein CLTM-CSI-ConfigId-r19 IE carries an identifier of a fourth IE, CLTM-CSI-ResourceConfigId-r19 IE carries an identifier of a second IE corresponding to the fourth IE, and CLTM-TriggerEventConfig IE carries fourth information.

The identification of the second IE is used for the UE to determine L1 measurement resources required for using the second L1 execution condition corresponding to the fourth IE.

The fourth IE is configured in the csi-MeasConfig IE specified by the protocol.

S206, the DU sends at least one fourth IE to the CU.

Accordingly, the CU receives at least one fourth IE.

Wherein, at least one fourth IE is carried in the RRC message of the downlink.

S207, the CU adds the third IE and the at least one fifth IE to the handover related message, or the CU adds the at least one fourth IE and the at least one fifth IE to the handover related message.

Wherein, all fifth IEs are in one-to-one correspondence with all candidate cells.

The fifth IE carries fifth information indicating L3 execution conditions for the L3 measurement resource configuration of the CU for the corresponding candidate cell.

In some embodiments, the fifth IE may be generated after the third IE or the at least one fourth IE is received, or may be pre-generated before the third IE or the at least one fourth IE is received.

The L3 execution condition includes at least one fourth handover trigger event customized by the CU, or the L3 execution condition includes at least one fifth handover trigger event, where the at least one fifth handover trigger event is determined by the CU based on at least one L3 measurement reporting event of the candidate cell and second bias conditions corresponding to the at least one L3 measurement reporting event, respectively.

For each candidate cell and a fifth IE corresponding to the candidate cell, if the L3 execution condition of the candidate cell is at least one fourth switching trigger event defined by the CU, fifth information carried by the fifth IE comprises at least one fourth switching trigger event.

Wherein the fifth IE may be named condLTMTriggerConfig-r19 IE. The fifth IE is configured in the protocol-specified measurement report configuration ReportConfigNR IE.

If the L3 execution condition of the candidate cell is at least one fifth handover trigger event, the fifth information carried by the fifth IE includes at least one second bias condition and does not include the L3 measurement report event, and the fifth IE is configured in the sixth IE. The sixth IE is an IE carrying at least one L3 measurement reporting event of the candidate cell.

Wherein the fifth IE may be named CLTM-Offset. The sixth IE is configured in the measurement report configuration ReportConfigNR IE associated with the candidate cell.

S208, the CU sends a handover related message to the DU.

Accordingly, the DU receives the handover related message.

For each fifth IE and a sixth IE corresponding to the fifth IE, if the fifth IE is configured outside the sixth IE, when the CU sends a handover related message, judging whether the fifth IE is associated with the L3 measurement resource of the corresponding candidate cell, if so, sending first association information of the fifth IE and the L3 measurement resource to the UE when the fifth IE is sent.

If not, after the DU associates the fifth IE with the L3 measurement resources of the corresponding candidate cell, the first association information is sent to the UE, so that the UE determines, based on the first association information, the L3 measurement resources required to use the L3 execution condition in the fifth IE.

The CU correlates the fifth IE with the L3 measurement resources of the candidate cell corresponding to the fifth IE, that is, configures ReportConfigNR IE for the measurement report to which the fifth IE belongs and configures a measurement identifier MeasId for the measurement object MeasObjectId IE corresponding to the candidate cell corresponding to the fifth IE. The measurement identity characterizes the first association information.

Wherein MeasObjectId IE corresponding to the candidate cell indicates L3 measurement resources of the candidate cell.

When the fifth IE is configured in the sixth IE, the CU does not associate the fifth IE with the L3 measurement resources of the candidate cell corresponding to the fifth IE when sending the handover related message, and the UE may determine, based on the second association information, L3 measurement resources required to use the L3 execution condition in the fifth IE, where the second association information is association information of the sixth IE and the L3 measurement resources of the candidate cell of the sixth IE.

The measurement report configuration ReportConfigNR IE to which the sixth IE belongs and the measurement object MeasObjectId corresponding to the candidate cell corresponding to the sixth IE, where measurement identifier MeasId measurement identifiers corresponding to the measurement report configuration ReportConfigNR IE and the measurement object MeasObjectId represent the second association information.

The handover related message may be a radio resource control reconfiguration (RRC Reconfiguration) message specified by the protocol, and the RRC Reconfiguration message is carried in a downlink radio resource control message transfer (DL RRC MESSAGE TRANSFER) message.

S209, the DU forwards the handover related message to the UE.

Accordingly, the UE receives the handover related message.

The UE analyzes the third IE in the handover related message, and/or analyzes all or part of the fifth IE, and performs cell handover based on the first L1 execution conditions corresponding to all or part of the candidate cells obtained by analysis, and/or performs cell handover based on the L3 execution conditions corresponding to all or part of the candidate cells obtained by analysis, or the handover related message is used for indicating the UE to analyze all or part of the fourth IE, and/or analyzes all or part of the fifth IE, and performs cell handover based on the second L1 execution conditions corresponding to all or part of the candidate cells obtained by analysis, and/or performs cell handover based on the L3 execution conditions corresponding to all or part of the candidate cells obtained by analysis.

Specifically, for each candidate cell, the UE performs measurement based on the first L1 measurement resource to obtain a first L1 measurement result, and determines whether the first L1 measurement result meets a first L1 execution condition. Or the UE performs measurement based on the second L1 resource for each candidate cell to obtain a second L1 measurement result, and judges whether the second L1 measurement result meets a second L1 execution condition.

Wherein, the first L1 measurement result satisfying the first L1 execution condition means that the first L1 measurement result satisfies any one of the first switching trigger events, or the first L1 measurement result satisfies any one of the second switching trigger events.

The second measurement result satisfying the second L1 execution condition means that the second L1 measurement result satisfies any one of the third handover trigger events.

And the UE performs measurement based on the L3 measurement resources for each candidate cell to obtain an L3 measurement result, and judges whether the L3 measurement result meets L3 execution conditions.

The L3 measurement result satisfying the L3 execution condition means that the L3 measurement result satisfies any fourth handover trigger event, or the L3 measurement result satisfies any fifth handover trigger event.

And for any candidate cell, if the first condition is met and/or the L3 measurement result meets the L3 execution condition, the UE initiates an access request to the candidate cell and requests to switch to the candidate cell, wherein the first condition is that the first L1 measurement result of the candidate cell meets the first L1 execution condition or that the second L1 measurement result of the candidate cell meets the second L1 execution condition.

The application provides an information element configuration method applied to cell switching, wherein L1 measurement resources sent by a CU (user equipment) can be configured in a first IE or at least one second IE, wherein the first IE supports carrying all candidate cell L1 measurement resources, the second IE supports carrying one candidate cell L1 measurement resource, a third IE is configured for the first IE by a DU to indicate L1 execution conditions of all candidate cells, the third IE and a fifth IE carrying L3 execution conditions are sent to UE, the cost of the UE and the DU for carrying out cell switching based on the L1 and/or L3 execution conditions is saved, a fourth IE is respectively configured for each second IE by the DU, the L1 execution conditions of different candidate cells are configured in different fourth IEs, and the fourth IE carrying the L3 execution conditions is sent to the UE together with the fifth IE. The UE can selectively analyze part of the fourth IE to perform cell switching based on the L1 execution condition of part of the candidate cells, so that time consumption in the cell switching process can be saved.

Based on the above exemplary description, the first L1 execution condition set has 2 cases, the second L1 execution condition has one case, and the L3 execution condition has 3 cases. Next, a third IE corresponding to the different first L1 execution condition set, a fourth IE corresponding to the different second L1 execution condition, and a fifth IE corresponding to the different L3 execution condition are described in detail.

The first set of L1 execution conditions is described first.

The 2 cases of the first L1 execution condition set and the case corresponding to the third IE are respectively:

The case a, the first L1 execution condition set includes at least one first handover trigger event customized by the DU, and the third IE carries at least one first handover trigger event.

The case B and the first L1 execution condition set comprise at least one second switching trigger event, wherein the at least one second switching trigger event is determined by at least one L1 measurement report event and at least one first bias condition, and the third IE carries the at least one first bias condition.

Specifically, the case A comprises two sub-cases, namely the case A.1 that the first condition parameter of the first switching trigger event comprises at least one first parameter value corresponding to each first L1 measurement resource one by one, and the case A.2 that the first condition parameter of the first switching trigger event comprises one second parameter value corresponding to all the first L1 measurement resources. Next, a description will be given of a third IE corresponding to a different sub-case. In different sub-cases, the content of the third information carried by the third IE is different.

If the first L1 execution condition set corresponds to the case a.1, for each first handover trigger event, the first handover trigger event includes a plurality of first condition parameters, where each first condition parameter includes at least one first parameter value. For each first condition parameter, at least one first parameter value of the first condition parameter corresponds to at least one first L1 measurement resource one-to-one.

For each first L1 measurement resource under each first handover trigger event, all first parameter values corresponding to the first L1 measurement resource under the first handover trigger event indicate a first sub-trigger event corresponding to the first L1 measurement resource under the first handover trigger event.

For each candidate cell, the first L1 execution condition corresponding to the candidate cell comprises first sub-trigger conditions corresponding to all first L1 measurement resources of the candidate cell under each first handover trigger event.

The relevant codes of the third IE in case a.1 are exemplified below by the at least one first handover trigger event being an A3 event and an A5 event. The code is as follows (following "//" is an explanation of the code of the line or lines preceding "/"):

LTM-CSI-ReportConfig-r19 IE:{LTM-CSI-ReportConfigId-r19;

LTM-CSI-ResourceConfigId-r 19;// protocol specified IE

CLTM-TriggerEventConfig {// third IE

CondEventId CHOICE {// select A3 event or A5 event

CondLTMEventA3 SEQUENCE {// A3 event

First condition parameters and at least one first parameter value for A3-Offset { MeasTriggerQuantityOffset, measTriggerQuantityOffset, measTriggerQuantityOffset }, v/A3 event

The first condition parameter and at least one first parameter value of the Hysteresis { hystersis, & gt, hystersis },// A3 event

First condition parameters and at least one first parameter value for timeToTriggersequence { TimeToTrigger, timeToTrigger,., timeToTrigger }// A3 event

Rstype { ssb-rs, csi-rs,., ssb-rs }// reference signal type

},

CondLTMEventA5 SEQUENCE {// A5 event

a5-Threshold1{MeasTriggerQuantity,MeasTriggerQuantity,...,MeasTriggerQuantity},

First condition parameter and at least one first parameter value of a// A5 event

a5-Threshold2{MeasTriggerQuantity,MeasTriggerQuantity,..,MeasTriggerQuantity},

First condition parameter and at least one first parameter value of a// A5 event

The first condition parameter and at least one first parameter value of the Hysteresis { hystersis, & gt, hystersis },// A5 event

TimeToTrigger sequence { TimeToTrigger, timeToTrigger,.. TimeToTrigger },// A5 first condition parameter of the event and at least one first parameter value

Rstype { ssb-rs, csi-rs,., ssb-rs },// reference signal type

MeasTriggerQuantityOffset =choice {// A3 event-corresponding reference signal power range selection

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)}

MeasTriggerQuantity =choice {// A5 event

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range}

}}

As the code indicates, the A3 event includes 3 first condition parameters, namely an Offset parameter A3-Offset of the A3 event, a hysteresis parameter hysteresis of the A3 event, and a trigger time parameter TimeToTriggersequence of the A3 event.

The offset parameter of the A3 event includes at least one offset MeasTriggerQuantityOffset, A event, the hysteresis parameter of the at least one hysteresis HYSTERESIS, A event, and the trigger time parameter of the at least one hysteresis HYSTERESIS, A event includes at least one trigger time TimeToTrigger.

Wherein, at least one offset, at least one hysteresis, at least one first trigger time, at least one first reference signal type value of the A3 event corresponds to at least one first L1 measurement resource one-to-one. The at least one first L1 measurement resource is a first L1 measurement resource corresponding to all candidate cells.

For each first L1 measurement resource, an offset corresponding to the first L1 measurement resource, a hysteresis corresponding to the first L1 measurement resource, and a first sub-trigger event corresponding to the first L1 measurement resource under the A3 event is indicated by a first trigger time corresponding to the first L1 measurement resource.

Wherein one candidate cell corresponds to one or more first L1 measurement resources, which may also be referred to as at least one first L1 measurement resource. That is, the number of first L1 measurement resources configured by the CU for the candidate cell is 1 or more for each candidate cell.

The A5 event comprises 4 first condition parameters, namely a first Threshold parameter A5-Threshold1 of the A5 event, a second Threshold parameter A5-Threshold2 of the A5 event, a hysteresis parameter of the A5 event and a triggering time parameter of the A5 event.

The first Threshold parameter of the A5 event comprises MeasTriggerQuantity of the at least one first Threshold value A5-Threshold1, the second Threshold parameter of the A5 event comprises MeasTriggerQuantity of the at least one second Threshold value A5-Threshold2, the hysteresis parameter of the A5 event comprises at least one hysteresis amount, and the trigger time parameter of the A5 event comprises at least one trigger time.

Wherein, at least one first threshold value, at least one second threshold value, at least one hysteresis quantity, at least one second trigger time of the A5 event are in one-to-one correspondence with at least one first L1 measurement resource.

For each first L1 measurement resource, a first threshold value corresponding to the first L1 measurement resource, a second threshold value corresponding to the first L1 measurement resource, a hysteresis amount corresponding to the first L1 measurement resource and a second trigger time corresponding to the first L1 measurement resource indicate a first sub-trigger event corresponding to the first L1 measurement resource under the A5 event.

For each candidate cell, the first L1 execution condition corresponding to the candidate cell comprises first sub-trigger events corresponding to all first L1 measurement resources of the candidate cell under the A3 event and first sub-trigger events corresponding to all first L1 measurement resources of the candidate cell under the A5 event.

If the first L1 execution condition set corresponds to the case a.2, the first condition parameter of the first switching trigger event includes a second parameter value.

The relevant codes of the third IE in case a.2 are exemplified below by the at least one first handover trigger event being an A3 event and an A5 event. The code is as follows (the content following "//" is an explanation of the code of the line or lines preceding "/")

LTM-CSI-ReportConfig-r19 IE:

{LTM-CSI-ReportConfigId-r19;LTM-CSI-ResourceConfigId-r19;

CLTM-TriggerEventConfig{

condEventId CHOICE{

CondLTMEventA3 SEQUENCE {// A3 event

a3-Offset MeasTriggerQuantityOffset,hysteresis Hysteresis,timeToTrigger TimeToTrigger,

Each first condition parameter includes a second parameter value

Rstype::=choice{ssb-rs,csi-rs,},

MeasTriggerQuantityOffset::=CHOICE{rsrp INTEGER(-30..30),rsrq INTEGER(-30..30)

,sinr INTEGER(-30..30)},

SSB-CSI-index = {1,2,..128 }, first L1 measurement resource index applicable for each second parameter value of the// A3 event

},

CondLTMEventA5 SEQUENCE {// A5 event

a5-Threshold1 MeasTriggerQuantity,a5-Threshold2 MeasTriggerQuantity,hysteresis Hysteresis,timeToTrigger TimeToTrigger// Each first condition parameter includes a second parameter value

Rstype::=choice{ssb-rs,csi-rs,}

MeasTriggerQuantity::=CHOICE{rsrp RSRP-Range,rsrq RSRQ-Range,sinr SINR-Range}

SSB-CSI-index = {1,2,..128 }, first L1 measurement resource index applicable for each second parameter value of the/A5 event

}}}

The code in the case of a.2 is the same as the code in the case of a.1, and the explanation of the same is referred to in the related description of the case of a.1.

Unlike the a.1 case, each first condition parameter of the A3 event includes a second parameter value. The third IE carries an SSB-CSI-index IE and is used for indicating an L1 measurement resource index applicable to the second parameter value of the A3 event, and the L1 measurement resource index applicable to the second parameter value of the A3 event comprises a first L1 measurement resource index.

Specifically, the offset parameter of the A3 event includes an offset, the hysteresis parameter of the A3 event includes a hysteresis, and the trigger time parameter of the A3 event includes a trigger time.

The A5 event comprises 4 first condition parameters, namely a first threshold parameter of the A5 event, a second threshold parameter of the A5 event, a hysteresis parameter of the A5 event and a triggering time parameter of the A5 event.

The first threshold parameter of the A5 event comprises a first threshold value, the second threshold parameter of the A5 event comprises a second threshold value, the hysteresis parameter of the A5 event comprises a hysteresis amount, and the trigger time parameter of the A5 event comprises a trigger time.

Each first L1 measurement resource corresponds to a first threshold value, a second threshold value and a hysteresis value of the A5 event.

For each first L1 measurement resource, a first threshold, a second threshold, a hysteresis, and a second trigger time are used to indicate a first sub-trigger event corresponding to the first L1 measurement resource for the A5 event.

For each candidate cell, the first L1 execution condition corresponding to the candidate cell comprises first sub-trigger events corresponding to all first L1 measurement resources of the candidate cell under the A3 event and first sub-trigger events corresponding to all first L1 measurement resources of the candidate cell under the A5 event.

If the first L1 execution condition set corresponds to the condition B.1, the L1 measurement reporting event comprises a plurality of second condition parameters, and the first bias condition corresponding to the L1 measurement reporting event comprises a plurality of third condition parameters.

Each second condition parameter comprises at least one third parameter value and each third condition parameter comprises at least one fourth parameter value.

For each second condition parameter and corresponding third condition parameter, at least one third parameter value of the second condition parameter, at least one fourth parameter value of the third condition parameter and at least one first L1 measurement resource are in one-to-one correspondence.

Aiming at each first L1 measurement resource under a second switching trigger event corresponding to each L1 measurement report event, all third parameter values and all fourth parameter values corresponding to the first L1 measurement resource under the second switching trigger event indicate a third sub-trigger event of the first L1 measurement resource under the second switching trigger event.

And aiming at each candidate cell, the second L1 execution condition corresponding to the candidate cell comprises a third sub-trigger condition corresponding to all the first L1 measurement resources of the candidate cell under each second switching trigger event.

And measuring each second condition parameter of the reporting event aiming at each L1, wherein the second condition parameter has the same meaning as the third condition parameter. The second condition parameter and the third condition parameter may be described as target condition parameters.

When each third condition parameter includes at least one fourth parameter value, the third parameter value included in the second condition parameter is different from the fourth parameter value included in the third condition parameter.

The second handover trigger event includes a plurality of target condition parameters for each second handover trigger event, and the target condition parameters include at least one sixth parameter value for each target condition parameter. At least one sixth parameter value, at least one third parameter value, at least one fourth parameter value.

When each third condition parameter comprises at least one fourth parameter value, for each sixth parameter value, the sixth parameter value is determined based on the corresponding third parameter value and the corresponding fourth parameter value.

When each third condition parameter includes a fifth parameter value, for each sixth parameter value, the sixth parameter value is determined based on the third parameter value and the fifth parameter value corresponding to the sixth parameter.

For each first L1 measurement resource under the second handover trigger event corresponding to each L1 measurement report event, all third parameter values and all fourth parameter values corresponding to the first L1 measurement resource under the second handover trigger event indicate the third sub-trigger event of the first L1 measurement resource under the second handover trigger event, or it may be described that for each first L1 measurement resource under the second handover trigger event corresponding to each L1 measurement report event, all sixth parameter values corresponding to the first L1 measurement resource under the second handover trigger event indicate the third sub-trigger event of the first L1 measurement resource under the second handover trigger event.

The following exemplifies the related codes of the third IE in case b.1, taking at least one L1 measurement report event as an A3 event and an A5 event. The code is as follows (following "//" is an explanation of the code of the line or lines preceding "/"):

LTM-CSI-ReportConfig-r19 IE:{LTM-CSI-ReportConfigID-r19;

LTM-CSI-ResourceConfig-r18;// protocol specified IE

LTM-Event-Trigger-Config {// protocol specified IE

EventId CHOICE{

LTMEVENTA3 first sub-IE corresponding to the eighth IE of the SEQUENCE {// A3 event

a3-Offset{MeasTriggerQuantityOffset,...,MeasTriggerQuantityOffset},hysteresis

{ Hystersis, & gt, hystersis }, timeToTrigger { TimeToTrigger, & gt, timeToTrigger }// each second condition parameter comprises at least one third parameter value

Rstype::={ssb-rs,...,csi-rs,}

CLTM-Offset {// third sub-IE corresponding to third IE

a3-Offset{MeasTriggerQuantityOffset,...,MeasTriggerQuantityOffset},hysteresis

{ Hystersis, & gt, hystersis }, timeToTrigger { TimeToTrigger, & gt, timeToTrigger }// each third condition parameter comprises at least one fourth parameter value

CLTM-SSB-CSIRS-index-indication { SSB index = {1,2,..128 }// layer 1 measurement resource index for which the first bias condition applies

MeasTriggerQuantityOffset::=CHOICE{rsrp INTEGER(-30..30),rsrq INTEGER(-30..30)

,sinr INTEGER(-30..30)},

},

LTMEVENTA5 SEQUENCE {// A5 event eighth IE corresponds to the second sub-IE

a5-Threshold1{MeasTriggerQuantity,...,MeasTriggerQuantity},a5-Threshold2

{MeasTriggerQuantity,...,MeasTriggerQuantity},hysteresis

{ Hystersis, & gt, hystersis }, timeToTrigger { TimeToTrigger, & gt, timeToTrigger }// each second condition parameter comprises at least one third parameter value

Rstype::={ssb-rs,...,csi-rs,}

CLTM-Offset {// fourth sub-IE corresponding to third IE

a5-Threshold1{MeasTriggerQuantity,...,MeasTriggerQuantity},a5-Threshold2

{MeasTriggerQuantity,...,MeasTriggerQuantity},hysteresis{Hysteresis,...,Hysteresis},

TimeToTrigger { TimeToTrigger,., timeToTrigger }// each third condition parameter comprises at least one fourth parameter value

CLTM-SSB-CSIRS-index-indication { SSB index = {1,2,..128 }// layer 1 measurement resource index for which the first bias condition applies

MeasTriggerQuantity::=CHOICE{

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range}

MeasTriggerQuantityOffset::=CHOICE{

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)}

}}}

The code in the case a is the same as the code in the case B, and the explanation of the same is referred to the related description of the case a.

In case b.1, the eighth IE carrying the L1 measurement report event is a first sub-IE and a second sub-IE, the first sub-IE and the second sub-IE are an A3 event LTMEVENTA IE in layer 1/layer 2 triggered mobility handover and an A5 event LTMEVENTA IE in layer 1/layer 2 triggered mobility handover, the third IE is a third sub-IE and a fourth sub-IE, both are named CLTM-Offset IE, the two CLTM-Offset IEs correspond to the A3 event and the A5 event, respectively, and the two CLTM-Offset IEs are configured in LTMEVENTA IE and LTMEVENTA IE, respectively.

Wherein the LTM-Event-Trigger-ConfigIE further comprises two custom applications

CLTM-SSB-CSIRS-index-indication IE, wherein one CLTM-SSB-CSIRS-index-indication carries a layer 1 measurement resource index applicable to a first bias condition corresponding to an A3 event, and the other one

CLTM-SSB-CSIRRS-index-indication IE carries a layer 1 measurement resource index applicable to a first bias condition corresponding to an A5 event, and the two layer 1 measurement resource indexes comprise a first layer 1 measurement resource index.

If the first L1 execution condition set corresponds to the case b.2, the first bias condition corresponding to the L1 measurement reporting event includes a fourth condition parameter.

Wherein each third condition parameter comprises a fifth parameter value.

And aiming at each first L1 measurement resource under a second switching trigger event corresponding to each L1 measurement report event, indicating a fourth sub-trigger event of the first L1 measurement resource under the second switching trigger event, wherein all fifth parameter values under the second switching trigger event and all third parameter values corresponding to the first L1 measurement resource.

For each candidate cell, the first L1 execution condition corresponding to the candidate cell comprises a fourth sub-trigger event corresponding to all first L1 measurement resources of the candidate cell under each second handover trigger event.

The third IE is illustrated below with at least one L1 measurement report event being an A3 event and an A5 event.

The relevant code for the third IE is as follows:

LTM-CSI-ReportConfig-r19 IE:

{ LTM-CSI-ReportConfigId-r19; LTM-CSI-ResourceConfigId-r18;// protocol specified IE

LTM-Event-Trigger-Config {// protocol specified IE

EventId CHOICE{

LTMEVENTA3 SEQUENCE {// A3 event

a3-Offset{MeasTriggerQuantityOffset,...,MeasTriggerQuantityOffset},hysteresis

{ Hystersis, & gt, hystersis }, timeToTrigger { TimeToTrigger, & gt, timeToTrigger }// each second condition parameter comprises at least one third parameter value

CLTM-Offset{

A3-Offset MeasTriggerQuantityOffset, HYSTERESIS HYSTERESIS, timeToTrigger TimeToTrigger }// a plurality of third condition parameters of the first bias condition, each third condition parameter comprising a fifth parameter value

Rstype::=choice{ssb-rs,csi-rs,}

CLTM-SSB-CSIRS index-indication{SSB index::={1,2,...128}}

MeasTriggerQuantityOffset::=CHOICE{rsrp INTEGER(-30..30),rsrq INTEGER(-30..30)

,sinr INTEGER(-30..30)},

},

LTMEVENTA5 SEQUENCE {// A5 event

a5-Threshold1{MeasTriggerQuantity,...,MeasTriggerQuantity},a5-Threshold2

{MeasTriggerQuantity,...,MeasTriggerQuantity},hysteresis{Hysteresis,...,Hysteresis},

TimeToTrigger { TimeToTrigger,., timeToTrigger }// each second condition parameter comprises at least one third parameter value

Rstype::=choice{ssb-rs,csi-rs,}

CLTM-Offset{

a5-Threshold1 MeasTriggerQuantity,a5-Threshold2 MeasTriggerQuantity,hysteresis Hysteresis,timeToTrigger TimeToTrigger}// A plurality of third condition parameters of the first bias condition, each third condition parameter including a fifth parameter value

CLTM-ssb-index{SSB index::={1,2,...128}}

MeasTriggerQuantity::=CHOICE{rsrp RSRP-Range,rsrq RSRQ-Range,sinr SINR-Range}

},

}

}

The code in the case of b.2 is the same as the code in the case of b.1, and the explanation of the same is referred to in the description of the case of b.1.

In the case of b.2, the eighth IE carrying the L1 measurement report event is a first sub-IE and a second sub-IE, the first sub-IE and the second sub-IE are an A3 event LTMEVENTA IE in the mobility handover triggered by layer 1/layer 2 and an A5 event LTMEVENTA IE in the mobility handover triggered by layer 1/layer 2, the third IE is a third sub-IE and a fourth sub-IE, which are both named CLTM-Offset IE, the two CLTM-Offset IEs correspond to the A3 event and the A5 event, respectively, and the two CLTM-Offset IEs are respectively configured in LTMEVENTA IE and LTMEVENTA IE.

Wherein the LTM-Event-Trigger-ConfigIE further comprises two custom applications

CLTM-SSB-CSIRS-index-indication IE, wherein one CLTM-SSB-CSIRS-index-indication carries a layer 1 measurement resource index applicable to a first bias condition corresponding to an A3 event, and the other one

CLTM-SSB-CSIRRS-index-indication IE carries a layer 1 measurement resource index applicable to a first bias condition corresponding to an A5 event, and the two layer 1 measurement resource indexes comprise a first layer 1 measurement resource index.

In some embodiments, a custom CLTM-SSB-CSIRRS index-indication IE is further configured in the LTM-Event-Trigger-Config IE, for characterizing the L1 measurement resource index applicable to the first bias condition corresponding to the A3 Event. In the LTM-Event-Trigger-Config IE, a self-defined CLTM-SSB-CSIRS index-indication IE is also configured and used for representing the L1 measurement resource index applicable to the first bias condition corresponding to the A5 Event, wherein the two L1 measurement resource indexes comprise a first L1 measurement resource index.

Next, a fourth IE corresponding to the second L1 execution condition is described.

Taking the second L1 execution condition as an A3 event and an A5 event as an example, the fourth IE corresponding to each candidate cell and the related code of the fourth IE are described. The fourth IE comprises a customized CLTM-CSI-ResourceConfigId-r19 IE, a customized CLTM-CSI-ConfigId-r192 IE and a customized CLTM-TriggerEventConfig IE IE. Wherein CLTM-CSI-ResourceConfigId-r19 IE carries an identifier of a second IE corresponding to the fourth IE, CLTM-CSI-ConfigId-r192 IE carries an identifier of the fourth IE, and CLTM-TriggerEventConfig is used for carrying fourth information to indicate a second L1 execution condition.

CLTM-TriggerEventConfig {// IE carrying fourth information in fourth IE

CondEventId CHOICE {// select A3 or A5 event

CondLTMEventA3 SEQUENCE {// A3 event

a3-Offset{MeasTriggerQuantityOffset,MeasTriggerQuantityOffset,...,MeasTriggerQuantityOffset},

hysteresis{Hysteresis,Hysteresis,...,Hysteresis},

timeToTriggersequence{TimeToTrigger,TimeToTrigger,..,TimeToTrigger}

Rstype{ssb-rs,csi-rs,...,ssb-rs}

},

CondLTMEventA5 SEQUENCE {// A5 event

a5-Threshold1{MeasTriggerQuantity1,MeasTriggerQuantity1,...,MeasTriggerQuantity1},

a5-Threshold2{MeasTriggerQuantity2,MeasTriggerQuantity2,..,MeasTriggerQuantity2},

hysteresis{Hysteresis,Hysteresis,...,Hysteresis},

timeToTrigger sequence{TimeToTrigger,TimeToTrigger,...TimeToTrigger},

Rstype{ssb-rs,csi-rs,...,ssb-rs}},

MeasTriggerQuantityOffset::=CHOICE{

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)}

MeasTriggerQuantity::=CHOICE{

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range}

}}

The code is the same as the code part of the first L1 execution condition in the case of a, and the explanation of the same is referred to the related description of the case of a.

The fourth IE may be named CLTM-CSI-Config IE.

Next, a fifth IE in which the L3 execution conditions correspond to each of the 3 cases will be described.

For each candidate cell, the 3 cases of the L3 execution condition and the case of the corresponding fifth IE are respectively:

And C, the L3 executing condition is at least one fourth switching trigger event customized by the CU, and the fifth information carried by the fifth IE is the at least one fourth switching trigger event. The fifth IE is not associated with the L3 measurement resources of the candidate cell.

And in the case D, the L3 execution condition is at least one fourth switching trigger event customized by the CU, and the fifth information carried by the fifth IE is the at least one fourth switching trigger event. The fifth IE has been associated with the L3 measurement resources of the candidate cell.

The L3 executing condition comprises at least one fifth switching trigger event, and fifth information carried by the fifth IE comprises at least one second bias condition, wherein the at least one fifth switching trigger event is determined by the CU based on at least one L3 measurement reporting event and at least one second bias condition respectively corresponding to the L3 measurement reporting event of the candidate cell. The fifth IE is configured within the sixth IE.

In case C, the related code of the fifth IE is illustrated with the fourth handover trigger event including an A3 event and an A5 event, and the related code of the fifth IE is as follows:

MeasConfig =sequence {// measurement configuration

MeasIdToAddModList MeasIdToAddModList// measurement identity configuration

MeasObjectToAddModList MeasObjectToAddModList// measurement object configuration

ReportConfigToAddModList ReportConfigToAddMofList }// measurement report configuration

MeasIdToAddModList::=MeasIdToAddMod;

MeasIdToAddMod =sequence {// details of measurement configuration

measId MeasId,

measObjectId MeasObjectId,

reportConfigId ReportConfigId

}

ReportConfigToAddMofList::={ReportConfigToAddMod}

ReportConfigToAddMod::=SEQUENCE{reportConfigId,ReportConfigNR}

ReportConfigNR::=SEQUENCE{

CondLTMTriggerConfig-r19 CondLTMTriggerConfig-r19, }// fifth IE

CondLTMTriggerConfig-r19::=SEQUENCE{

condLTMEventId CHOICE{

CondLTMEventA3 SEQUENCE {// A3 event

a3-Offset MeasTriggerQuantityOffset,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

},

CondLTMEventA5 SEQUENCE {// A5 event

a5-Threshold1 MeasTriggerQuantity,

a5-Threshold2 MeasTriggerQuantity,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

},

...,

},

rsType-r19 CHOICE{ssb,csi-rs},

}

MeasTriggerQuantity::=CHOICE{

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range

}

MeasTriggerQuantityOffset::=CHOICE{

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)

}

The code in the case C is the same as the code in the case A, and the explanation of the same is referred to the related description of the case A.

In case C, the number of parameter values of each relevant parameter of the fourth handover triggering event is 1.

The first condition parameters of the first switching trigger event and the target condition parameters of the second switching trigger event have the same meaning. And the third switching trigger event, the fourth switching trigger event and the fifth switching trigger event all have related parameters with the same meaning as the first condition parameters of the first switching trigger event.

Wherein the measurement configuration includes a measurement identification configuration, a measurement object configuration, and a measurement report configuration. The measurement object configuration refers to configuring an L3 measurement resource for the candidate cell, the measurement report configuration refers to configuring an L3 execution condition for the candidate cell, and the measurement identifier configuration correlates the L3 measurement resource of the candidate cell with the corresponding L3 execution condition. Specifically, in the above code, the CU allocates a measurement identity measId to the measurement report ReportConfigNR of the fifth IE indicating the L3 execution condition and the measurement object measObject indicating the L3 measurement resource of the candidate cell to associate the L3 measurement resource of the candidate cell with the corresponding L3 execution condition.

In case C, the fifth IE may be named condLTMTriggerConfig-r19, configured in ReportConfigNR IE associated with the current candidate cell, and the measurement report ReportConfigNR IE corresponding to the current candidate cell configured in the measurement configuration MeasConfig IE.

The sixth IE includes an IE carrying an A3 event and an IE carrying an A5 event. The sixth IE is not included in the code.

In case D, the fifth IE is already associated with the L3 measurement resource of the candidate cell, and the fourth handover trigger event includes an A3 event and an A5 event as an example of the related code of the fifth IE, where the related code of the fifth IE is as follows:

ReportConfigToAddMod::=SEQUENCE{reportConfigId,ReportConfigNR}

ReportConfigNR =sequence { measurement report configuration IE associated with the current candidate cell ]

condLTMTriggerConfig-r19 CondLTMTriggerConfig-r19,}

CondLTMTriggerConfig-r19: =sequence {// fifth IE

condLTMEventId CHOICE{

CondLTMEventA3 SEQUENCE {// A3 event

a3-Offset MeasTriggerQuantityOffset,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

},

CondLTMEventA5 SEQUENCE {// A5 event

a5-Threshold1 MeasTriggerQuantity,

a5-Threshold2 MeasTriggerQuantity,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

},

...,

},

rsType-r19 CHOICE{ssb,csi-rs},

}

MeasTriggerQuantity::=CHOICE{

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range

}

MeasTriggerQuantityOffset::=CHOICE{

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)

The code in the case D is identical to the code in the case a in the content, and the explanation of the same is referred to the relevant description of the case a.

In case D, the number of parameter values of each relevant parameter of the fourth handover triggering event is 1.

Case D differs from case C in that case D has associated the fifth IE and L3 measurement resources of the candidate cell, and therefore case D prunes the relevant code of the measurement configuration compared to case C.

In case E, the related code of the fifth IE is illustrated by taking the L3 measurement report event including the A3 event and the A5 event as follows:

ReportConfigToAddMofList = { ReportConfigToAddMod }// protocol specified IE

ReportConfigToAddMod::=SEQUENCE{reportConfigId,ReportConfigNR}

ReportConfigNR =sequence {// protocol specified IE

condTriggerConfig-r19 CondLTMTriggerConfig-r19,}

CondTriggerConfig-r19::=SEQUENCE{

condEventId CHOICE{

CondEventA3 SEQUENCE {// A3 event sixth IE corresponds to the fifth sub-IE

a3-Offset MeasTriggerQuantityOffset,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

CLTM-Offset{a3-Offset MeasTriggerQuantityOffset,hysteresis Hysteresis,timeToTrigger TimeToTrigger}// Seventh sub-IE corresponding to fifth IE

},

CondLTMEventA5 SEQUENCE {// A5 event sixth IE corresponding to the sixth sub-IE

a5-Threshold1 MeasTriggerQuantity,

a5-Threshold2 MeasTriggerQuantity,

hysteresis Hysteresis,

timeToTrigger TimeToTrigger

CLTM-Offset{a5-Threshold1 MeasTriggerQuantity,a5-Threshold2 MeasTriggerQuantity,

HYSTERESIS HYSTERESIS, timeToTrigger TimeToTrigger }// eighth sub-IE corresponding to the fifth IE

},

...,

},

rsType-r19 CHOICE{ssb,csi-rs},

}

MeasTriggerQuantity::=CHOICE{

rsrp RSRP-Range,

rsrq RSRQ-Range,

sinr SINR-Range

}

MeasTriggerQuantityOffset::=CHOICE{

rsrp INTEGER(-30..30),

rsrq INTEGER(-30..30),

sinr INTEGER(-30..30)

}

The code in the case E is the same as the code in the case B, and the explanation of the same is referred to the description of the case B.

In case E, reportConfigNR IE where the sixth IE is located has been associated with the L3 measurement resources of the candidate cell. The sixth IE is a fifth sub-IE and a sixth sub-IE, which are respectively a conditional A3 event condEventA IE and a conditional A5 event condEvent A IE, wherein condEventA IE corresponds to the A3 event, condEventA IE corresponds to the A5 event, and the fifth IE is a seventh sub-IE and an eighth sub-IE, which are respectively sub-IE corresponding to the A3 event and sub-IE corresponding to the A5 event. The sub-IEs corresponding to the A3 event are configured in condEventA IEs and the sub-IEs corresponding to the A5 event are configured in condEventA IEs.

Wherein for each relevant parameter of the second bias condition, the number of parameter values in the relevant parameter may be 1.

In some embodiments, when sending the handover related message, the CU may generate a new seventh IE based on the target IE and the at least one fifth IE, and add the seventh IE to the handover related message for sending. Specifically, the target IE may be added to the custom L1-executioncondition-Config IE, and at least one fifth IE may be added to the custom L3-executioncondition-Config IE. The CU adds the L1-executioncondition-Config IE and the L3-executioncondition-Config IE to the custom LTMExcutionConditionConfig IE, and then adds LTMExcutionConditionConfig IE to the handover related information for transmission.

The relevant code for the CU to make the above configuration is as follows:

LTMExcutionConditionConfig::=SEQUENCE{

L1-executioncondition-Config;// IE containing target IE

L3-executioncondition-Config }// IE comprising at least one fifth IE

Specific content of L3-executioncondition-Config =sequence {// custom L3-executioncondition-ConfigIE

MeasIdToAddModList,MeasObjectToAddModList,ReportConfigToAddMofList}

L1-executioncondition-Config: =sequence {// specific content of custom L1-executioncondition-ConfigIE.

CLTM-CSI-ResourceConfig IE,

CLTM-CSI-ConfigToAddModList-r19 IE}

For relevant content of the above codes reference is made to the relevant description of the C, D, E case.

Wherein the measurement identity list MeasIdToAddModList includes all measurement identities of the candidate cell, the measurement exclusive list MeasObjectToAddModList indicates L3 measurement resources of the candidate cell, and the measurement report list ReportConfigToAddMofList indicates L3 execution conditions of the candidate cell.

Based on the foregoing embodiments, the embodiments of the present application provide an IE configuration device, where the IE configuration device includes each module included and each unit included in each module may be implemented by a processor, or may of course be implemented by a specific logic circuit, and in the implementation process, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

Fig. 3 is a schematic structural diagram of an IE configuration device according to an embodiment of the present application, as shown in fig. 3, the IE configuration device 30 includes a first receiving module 31, a generating module 32, and a first transmitting module 33, where:

The first receiving module 31 is configured to receive a first information element IE or at least one second IE sent by the centralized unit CU, where the first IE carries first information, the first information indicates first layer 1 measurement resources corresponding to all candidate cells, and the second IE carries second information, and the second information indicates second layer 1 measurement resources corresponding to one candidate cell.

The generating module 32 is configured to generate a third IE, the first sending module 33 is configured to send the third IE to the CU, where the third IE carries third information, and the third information indicates a first layer 1 execution condition set, where the first layer 1 execution condition set includes a first layer 1 execution condition corresponding to each candidate cell, and the first layer 1 execution condition set is configured for first layer 1 resources of all candidate cells indicated by the first information.

The generating module 32 further generates at least one fourth IE if the at least one second IE is received, the first sending module 33 is configured to send the at least one fourth IE to the CU, where all candidate cells, all second IEs and all fourth IEs are in one-to-one correspondence, for each fourth IE, the fourth IE carries fourth information, where the fourth information indicates a second layer 1 execution condition, where the second layer 1 execution condition is configured for a second layer 1 measurement resource of the candidate cell indicated by the target second information, and the target second information is second information carried in a second IE corresponding to the fourth IE.

The method comprises the steps of receiving a handover related message sent by a CU, sending the handover related message to terminal equipment (UE) served by the DU by a first sending module 33, so that the UE performs cell handover based on the handover related message, wherein the handover related message comprises a third IE and at least one fifth IE or the handover related message comprises the at least one fourth IE and the at least one fifth IE, all fifth IEs are in one-to-one correspondence with all candidate cells, the fifth IE carries fifth information indicating a layer 3 execution condition of layer 3 measurement resource configuration of the CU for a target candidate cell, and the target candidate cell is a candidate cell corresponding to the fifth IE carrying the fifth information.

In some embodiments, if the first layer 1 execution condition set includes at least one first handover trigger event customized by the DU, the third information is the at least one first handover trigger event, and if the first layer 1 execution condition set includes at least one second handover trigger event, the third information is at least one first bias condition, wherein the at least one second handover trigger event is determined by the DU based on at least one layer 1 measurement report event and at least one layer 1 measurement report event of the mobility management LTM triggered by layer 1/layer 2, which correspond to the first bias conditions respectively.

In some embodiments, the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicates at least one first layer 1 measurement resource, one candidate cell corresponds to one or more first layer 1 measurement resources, the first handover trigger event comprises a plurality of first condition parameters, wherein each first condition parameter comprises at least one first parameter value, for each first condition parameter, the at least one first parameter value of the first condition parameter corresponds to the at least one first layer 1 measurement resource one by one, for each first layer 1 measurement resource under each first handover trigger event, the first layer 1 measurement resource indicates a first sub-trigger event corresponding to the first handover trigger event under the first handover trigger event, for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises at least one first parameter value, for each first condition parameter value, for each first handover trigger event, the at least one first parameter value corresponds to the at least one first layer 1 measurement resource one first parameter value, and the at least one first layer 1 measurement resource one first parameter value corresponds to one, for each first sub-trigger event under each first handover trigger event, the first sub-trigger event corresponding to the first sub-trigger event comprises a first sub-trigger event corresponding to the first sub-trigger event, and the first sub-trigger event corresponding to the first sub-trigger event 1 value respectively, and the first sub-trigger event corresponding to the first sub-trigger event value under the first sub-trigger event 1 measurement value indicates the first sub-trigger event.

In some embodiments, the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicates at least one first layer 1 measurement resource, the at least one layer 1 measurement reporting event corresponds to the at least one first bias condition one by one, the layer 1 measurement reporting event comprises a plurality of second condition parameters, the first bias condition corresponding to the layer 1 measurement reporting event comprises a plurality of third condition parameters, wherein each second condition parameter comprises at least one third parameter value, each third condition parameter comprises at least one fourth parameter value, the plurality of second condition parameters corresponds to the plurality of third condition parameters one by one, at least one third parameter value for each second condition parameter and the corresponding third condition parameter, at least one fourth parameter value for the third condition parameter corresponds to the at least one first layer 1 measurement resource, each first under-layer 1 measurement parameter corresponding to the layer 1 measurement reporting event comprises a plurality of third condition parameters, wherein each second under-layer 1 measurement parameter corresponding to the layer 1 measurement reporting event comprises at least one third parameter value, each second under-layer 1 measurement parameter corresponding to the first trigger event candidate zone comprises a plurality of first trigger condition parameters corresponding to the first trigger event, each candidate under-layer 1 measurement parameter comprises a candidate zone corresponding to the first trigger condition parameter and all the first trigger zone and all the candidate first trigger condition parameters corresponding to the first trigger zone 1, the candidate zone and each first trigger zone under the first trigger condition parameter comprises at least one first trigger zone and all the first trigger zone and the candidate zone is at least one first trigger condition parameter corresponding to the first trigger value, all fifth parameter values under the second switching trigger event and all third parameter values corresponding to the first layer 1 measurement resources indicate a fourth sub-trigger event of the first layer 1 measurement resources under the second switching trigger event; for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises a fourth sub-trigger event corresponding to all first layer 1 measurement resources of the candidate cell under each second handover trigger event.

In some embodiments, the third IE is configured in a channel state information report configuration LTM-CSI-ReportConfig IE for layer 1/layer 2 triggered mobility management, wherein the LTM-CSI-ReportConfig IE includes an eighth IE, the eighth IE carries the at least one layer 1 measurement reporting event, and the eighth IE does not include the third IE if the first layer 1 execution condition includes the at least one first handover trigger event of the DU customization, and the eighth IE includes the third IE if the first layer 1 execution condition includes the at least one second handover trigger event.

In some embodiments, the second layer 1 execution condition includes at least one third handover trigger event customized by the DU, the fourth information carried by the fourth IE includes the at least one third handover trigger event, and the fourth IE is configured in a channel state information measurement configuration CSI-MeasConfig IE.

Fig. 4 is a schematic structural diagram of an IE configuration device according to an embodiment of the present application, as shown in fig. 4, the IE configuration device 40 includes a second sending module 41 and a second receiving module 42, where:

The second sending module 41 is configured to send a first information element IE or at least one second IE to the distribution unit DU, where the first IE carries first information, the first information indicates first layer 1 measurement resources corresponding to all candidate cells, the second IE carries second information, the second information indicates second layer 1 measurement resources corresponding to one candidate cell, the first IE is configured to generate a third IE for the DU, the at least one second IE is configured to generate at least one fourth IE for the DU, the third IE carries third information, the third information indicates a first layer 1 execution condition set, the first layer 1 execution condition set includes first layer 1 execution conditions corresponding to each candidate cell, the first layer 1 execution condition set is configured for first layer 1 resources of all candidate cells indicated by the first information, the all second IEs and all fourth IEs, the third IE carries third information, the third IE carries second information, the third IE indicates second layer 1 execution conditions corresponding to the second layer 1 measurement resources in the candidate cells, and the fourth IE carries second information, and the first layer 1 execution conditions indicate second layer 1 execution conditions corresponding to the fourth information.

A second receiving module 42, configured to receive the third IE or the at least one fourth IE sent by the DU.

A second sending module 41, configured to send a handover related message to a UE served by the DU through the DU, so that the UE performs cell handover based on the handover related message, where the handover related message includes the third IE and at least one fifth IE, or the handover related message includes the at least one fourth IE and the at least one fifth IE, where all fifth IEs are in one-to-one correspondence with all candidate cells, where the fifth IE carries fifth information, where the fifth information indicates a layer 3 execution condition that the CU is a layer 3 measurement resource configuration of a target candidate cell, and where the target candidate cell is a candidate cell corresponding to a fifth IE that carries the fifth information.

In some embodiments, for each candidate cell and a fifth IE corresponding to the candidate cell, if a layer 3 execution condition of the candidate cell is at least one fourth handover trigger event customized by the CU, fifth information carried by the fifth IE is the at least one fourth handover trigger event, and if the layer 3 execution condition of the candidate cell includes at least one fifth handover trigger event, the fifth information includes at least one second bias condition, where the at least one fifth handover trigger event is determined by the CU based on the second bias condition corresponding to at least one layer 3 measurement reporting event and the at least one layer 3 measurement reporting event of the candidate cell, respectively.

In some embodiments, for each fifth IE, a candidate cell corresponding to the fifth IE, and fifth information corresponding to the fifth IE, if the fifth information includes at least one fourth handover trigger event, the fifth IE is configured outside a sixth IE, where the sixth IE is an IE carrying at least one layer 3 measurement reporting event of the candidate cell, and if the fifth information is the second bias condition, the fifth IE is configured in the sixth IE.

In some embodiments, for each fifth IE and a sixth IE corresponding to the fifth IE, the fifth IE is configured to send first association information to the UE through the DU when sending the fifth IE, wherein the first association information is association information between the fifth IE and layer 3 measurement resources of a candidate cell corresponding to the fifth IE, so that the UE determines, based on the first association information, layer 3 measurement resources required to use layer 3 execution conditions in the fifth IE, and when the fifth IE is configured in the sixth IE, the CU sends second association information to the UE through the DU when sending the fifth IE, wherein the second association information is association information of layer 3 measurement resources of the candidate cell of the sixth IE, so that the UE determines, based on the second association information, layer 3 measurement resources required to use layer 3 execution conditions in the fifth IE.

The description of the apparatus embodiments above is similar to that of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the apparatus of the present application, please refer to the description of the embodiments of the method of the present application.

It should be noted that, in the embodiment of the present application, the division of the modules by the IE configuration device shown in fig. 3 and fig. 4 is schematic, which is merely a logic function division, and another division manner may be adopted in actual implementation. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. Or in a combination of software and hardware.

It should be noted that, in the embodiment of the present application, if the above IE configuration method is implemented in the form of a software functional module, and sold or used as a separate product, the IE configuration method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partly contributing to the related art, embodied in the form of a software product stored in a storage medium, including several instructions for causing an electronic device to execute all or part of the methods described in the embodiments of the present application. The storage medium includes various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the application are not limited to any specific combination of hardware and software.

The embodiment of the application provides a network device, which can be a CU or a DU in the application. Fig. 5 is a schematic diagram of a hardware entity of a network device according to an embodiment of the present application, as shown in fig. 5, the network device 50 includes a memory 51 and a processor 52, where the memory 51 stores a computer program that can be run on the processor 52, and the processor 52 implements steps in the method provided in the foregoing embodiment when executing the program.

It should be noted that, the memory 51 is configured to store instructions and applications executable by the processor 52, and may also be cached in the processor 52 and data (e.g., image data, audio data, voice communication data, and video communication data) to be processed or already processed by each module in the network device 50, and may be implemented by a FLASH memory (FLASH) or a random access memory (RandomAccess Memory, RAM).

An embodiment of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps in the IE configuration method provided in the above embodiment.

An embodiment of the present application provides a computer program product containing instructions, which when executed on a computer, cause the computer to perform the steps in the IE configuration method provided in the above method embodiment.

The present application provides a computer-readable storage medium having stored thereon a computer-executable program or instructions that, when executed by a processor, cause a network device to implement an IE configuration method.

The application provides a chip, which comprises an interface circuit and a logic circuit, wherein the interface circuit is used for receiving signals from other chips outside the chip and transmitting the signals to the logic circuit, or sending the signals from the logic circuit to other chips outside the chip, and the logic circuit is used for realizing an IE configuration method.

The present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the steps in an IE configuration method.

It should be noted here that the description of the storage medium and the device embodiments above is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the storage medium, the storage medium and the device embodiments of the present application, please refer to the description of the method embodiments of the present application.

The foregoing is merely an embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An information element configuration method applied to cell handover, the method comprising:

The distribution unit DU receives a first Information Element (IE) or at least one second IE sent by the concentration unit CU, wherein the first IE carries first information which indicates first layer 1 measurement resources corresponding to all candidate cells, and the second IE carries second information which indicates second layer 1 measurement resources corresponding to one candidate cell;

If the DU receives the first IE, the DU generates a third IE and sends the third IE to the CU, wherein the third IE carries third information, the third information indicates a first layer 1 execution condition set, the first layer 1 execution condition set comprises first layer 1 execution conditions respectively corresponding to each candidate cell, and the first layer 1 execution condition set is configured for first layer 1 resources of all candidate cells indicated by the first information;

The method comprises the steps that a DU receives at least one first IE, generates at least one second IE, and sends the at least one second IE to a CU, wherein all candidate cells, all second IEs and all the fourth IEs are in one-to-one correspondence, fourth information is carried by each fourth IE, the fourth information indicates a second layer 1 execution condition, the second layer 1 execution condition is configured for second layer 1 measurement resources of the candidate cells indicated by target second information, and the target second information is second information carried in the second IE corresponding to the fourth IE;

the DU receives a handover related message sent by the CU and sends the handover related message to terminal equipment (UE) served by the DU so that the UE performs cell handover based on the handover related message, wherein the handover related message comprises the third IE and at least one fifth IE, or the handover related message comprises the at least one fourth IE and the at least one fifth IE, all fifth IEs are in one-to-one correspondence with all candidate cells, the fifth IE carries fifth information, the fifth information indicates a layer 3 execution condition of layer 3 measurement resource configuration of the CU for a target candidate cell, and the target candidate cell is a candidate cell corresponding to the fifth IE carrying the fifth information.

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

If the first layer 1 execution condition set comprises at least one first switching trigger event customized by the DU, the third information is the at least one first switching trigger event;

And if the first layer 1 execution condition set comprises at least one second switching trigger event, the third information is at least one first bias condition, wherein the at least one second switching trigger event is determined by the DU based on at least one layer 1 measurement report event and at least one layer 1 measurement report event of the mobility management LTM triggered by the layer 1/layer 2 respectively corresponding first bias conditions.

3. The method of claim 2, wherein the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicating at least one first layer 1 measurement resource, one candidate cell corresponding to one or more first layer 1 measurement resources;

The first handover trigger event includes a plurality of first condition parameters, wherein,

Each first condition parameter includes at least one first parameter value;

For each first condition parameter, at least one first parameter value of the first condition parameter corresponds to the at least one first layer 1 measurement resource one to one;

For each first layer 1 measurement resource under each first switching trigger event, indicating a first sub-trigger event corresponding to the first layer 1 measurement resource under the first switching trigger event by all first parameter values corresponding to the first layer 1 measurement resource under the first switching trigger event;

for each candidate cell, the first layer 1 execution conditions corresponding to the candidate cell comprise first sub-trigger conditions corresponding to all first layer 1 measurement resources of the candidate cell under each first handover trigger event;

Or alternatively

Each first condition parameter includes a second parameter value;

For each first layer 1 measurement resource under each first handover trigger event, indicating second sub-trigger events corresponding to the first layer 1 measurement resources by all second parameter values under the first handover trigger event;

for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises all second sub-trigger events corresponding to each first switching trigger event respectively.

4. The method of claim 2, wherein the first information is at least one first layer 1 measurement resource index, the at least one first layer 1 measurement resource index indicating at least one first layer 1 measurement resource;

The at least one layer 1 measurement reporting event corresponds to the at least one first bias condition one by one;

The layer 1 measurement reporting event comprises a plurality of second condition parameters, the first bias condition corresponding to the layer 1 measurement reporting event comprises a plurality of third condition parameters,

Each second condition parameter comprises at least one third parameter value; each third condition parameter comprises at least one fourth parameter value;

For each second condition parameter and corresponding third condition parameter, at least one third parameter value of the second condition parameter, at least one fourth parameter value of the third condition parameter and the at least one first layer 1 measurement resource are in one-to-one correspondence;

aiming at each first layer 1 measurement resource under a second switching trigger event corresponding to each layer 1 measurement reporting event, indicating a third sub-trigger event of the first layer 1 measurement resource under the second switching trigger event by all third parameter values and all fourth parameter values corresponding to the first layer 1 measurement resource under the second switching trigger event;

For each candidate cell, the second layer 1 execution conditions corresponding to the candidate cell comprise third sub-trigger conditions corresponding to all first layer 1 measurement resources of the candidate cell respectively under each second switching trigger event;

Or alternatively

Each third condition parameter includes a fifth parameter value;

Aiming at each first layer 1 measurement resource under a second switching trigger event corresponding to each layer 1 measurement report event, indicating a fourth sub-trigger event of the first layer 1 measurement resource under the second switching trigger event by all fifth parameter values under the second switching trigger event and all third parameter values corresponding to the first layer 1 measurement resource;

for each candidate cell, the first layer 1 execution condition corresponding to the candidate cell comprises a fourth sub-trigger event corresponding to all first layer 1 measurement resources of the candidate cell under each second handover trigger event.

5. The method according to claim 2 to 4, wherein,

The third IE is configured in an LTM-CSI-ReportConfig IE configured for the channel state information report of the mobility management triggered by the layer 1/layer 2, wherein the LTM-CSI-ReportConfig IE comprises an eighth IE, and the eighth IE is an IE carrying the at least one layer 1 measurement reporting event;

in the case that the first layer 1 execution condition set includes at least one first handover trigger event customized by the DU, the eighth IE does not include the third IE, and in the case that the first layer 1 execution condition set includes at least one second handover trigger event, the eighth IE includes the third IE.

6. The method of claim 1, wherein the second layer 1 execution condition comprises at least one third handover trigger event customized by the DU, wherein the fourth information carried by the fourth IE comprises the at least one third handover trigger event, and wherein the fourth IE is configured in a channel state information measurement configuration CSI-MeasConfig IE.

7. An information element configuration method applied to cell handover, characterized in that the method further comprises:

The method comprises the steps that a centralized unit CU sends a first Information Element (IE) or at least one second IE to a distribution unit DU, wherein the first IE carries first information, the first information indicates first layer 1 measurement resources corresponding to all candidate cells, the second IE carries second information, the second information indicates second layer 1 measurement resources corresponding to one candidate cell, the first IE is used for generating a third IE by the DU, the at least one second IE is used for generating at least one fourth IE by the DU, the third IE carries third information, the third information indicates a first layer 1 execution condition set, the first layer 1 execution condition set comprises first layer 1 execution conditions corresponding to each candidate cell respectively, and the first layer 1 execution condition set is configured for first layer 1 resources of all candidate cells indicated by the first information;

the CU receives the third IE or the at least one fourth IE sent by the DU;

The CU sends a switching related message to a terminal device (UE) served by the DU through the DU so that the UE performs cell switching based on the switching related message, wherein the switching related message comprises the third IE and at least one fifth IE, or the switching related message comprises the at least one fourth IE and the at least one fifth IE, all the fifth IEs are in one-to-one correspondence with all the candidate cells, the fifth IE carries fifth information, the fifth information indicates a layer 3 execution condition of layer 3 measurement resource configuration of the CU for a target candidate cell, and the target candidate cell is a candidate cell corresponding to the fifth IE carrying the fifth information.

8. The method of claim 7, wherein the step of determining the position of the probe is performed,

Aiming at each candidate cell and a fifth IE corresponding to the candidate cell, if the layer 3 execution condition of the candidate cell is at least one fourth switching trigger event customized by the CU, fifth information carried by the fifth IE is the at least one fourth switching trigger event;

and if the layer 3 execution condition of the candidate cell comprises at least one fifth switching trigger event, wherein the fifth information comprises at least one second bias condition, and the at least one fifth switching trigger event is determined by the CU based on the second bias condition corresponding to at least one layer 3 measurement reporting event and the at least one layer 3 measurement reporting event of the candidate cell respectively.

9. The method of claim 8, wherein for each fifth IE, a candidate cell corresponding to the fifth IE, and fifth information corresponding to the fifth IE, if the fifth information includes at least one fourth handover trigger event, the fifth IE is configured outside a sixth IE, wherein the sixth IE is an IE carrying at least one layer 3 measurement reporting event of the candidate cell;

And if the fifth information is the second bias condition, configuring the fifth IE in the sixth IE.

10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

For each fifth IE and a sixth IE corresponding to the fifth IE, the fifth IE is configured outside the sixth IE, and when the CU sends the fifth IE, the CU sends first association information to the UE through the DU, wherein the first association information is association information between the fifth IE and layer 3 measurement resources of a candidate cell corresponding to the fifth IE, so that the UE determines the layer 3 measurement resources required for using the layer 3 execution conditions in the fifth IE based on the first association information;

And when the fifth IE is configured in the sixth IE, the CU sends second association information to the UE through the DU when sending the fifth IE, wherein the second association information is association information of layer 3 measurement resources of candidate cells of the sixth IE and the sixth IE, so that the UE determines the layer 3 measurement resources required for using the layer 3 execution conditions in the fifth IE based on the second association information.