Network optimization method and device and storage medium

Abstract

The invention provides a network optimization method and device and a storage medium, and relates to the technical field of communication, a paging method comprises the following steps: sending parameter information related to random access-free switching to network equipment, the parameter information being used for network optimization, the parameter information comprises at least one of the following items: retransmission information of uplink data, synchronization signal block (SSB) information, timing advance and indication information for executing random access-free switching. According to the method, network optimization related to random-access-free handover is realized, handover failure or handover approaching failure caused by improper configuration is avoided, and resource waste caused by unreasonable resource allocation is avoided.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a network optimization method, device, and storage medium. Background Art

[0002] During cell handover, a terminal needs to perform a random access procedure to obtain uplink synchronization with the target cell. In non-terrestrial network (NTN) scenarios, most terminals perform handover operations within a short timeframe, which can cause a random access signaling storm.

[0003] To address the aforementioned signaling storm issue, a RACH-less handover (RACH-less HO) solution has been introduced. In RACH-less HO, the terminal acquires synchronization information with the target cell in advance. When performing a handover to the target cell, the terminal does not send a preamble like in traditional random access procedures, and does not send uplink data after acquiring uplink synchronization. Instead, it sends uplink data using a pre-allocated grant (CG). However, improper configuration of RACH-less HO can easily lead to handover failure or near-failure, or to resource waste due to improper resource allocation. Summary of the Invention

[0004] The present application provides a network optimization method, device and storage medium, which realize network optimization, avoid cell handover failure or handover near failure, and avoid resource waste due to unreasonable resource allocation.

[0005] In a first aspect, the present application provides a network optimization method, applied to a UE, comprising:

[0006] Sending parameter information related to non-random access handover to a network device, where the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0007] Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0008] In one implementation, the retransmission information includes at least one of the following:

[0009] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0010] In one implementation, the SSB information includes: SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0011] In one implementation, the SSB threshold information includes at least one of the following:

[0012] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0013] In one implementation, the SSB information includes at least one of the following:

[0014] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0015] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0016] Indication information of whether the UE performs handover without random access;

[0017] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0018] Indication of whether the UE falls back from non-random access handover to random access handover.

[0019] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0020] In a second aspect, the present application provides a network optimization method, applied to a network device, comprising:

[0021] receiving parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0022] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0023] In one implementation, the retransmission information includes at least one of the following:

[0024] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0025] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0026] In one implementation, the SSB threshold information includes at least one of the following:

[0027] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0028] In one implementation, the SSB information includes at least one of the following:

[0029] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0030] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0031] Indication information of whether the UE performs handover without random access;

[0032] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0033] Indication of whether the UE falls back from non-random access handover to random access handover.

[0034] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0035] In one implementation, the network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, and the method further includes:

[0036] The parameter information is sent to the source network device and / or the target network device.

[0037] In one implementation, sending the parameter information to the source network device and / or the target network device includes:

[0038] When the result of the UE performing the non-random access handover is a radio link failure, the parameter information is sent to the target network device through the Xn / NG interface.

[0039] In one implementation, sending the parameter information to the source network device and / or the target network device includes:

[0040] When the result of the UE performing the non-random access handover is a handover failure, the parameter information is sent to the source network device through the Xn / NG interface.

[0041] In a third aspect, the present application provides a network optimization method, applied to a source network device or a target network device without random access handover, comprising:

[0042] receiving parameter information related to non-random access handover sent by a first network device, wherein the first network device is a network device other than the source network device and the target network device, the parameter information being used for network optimization, and the parameter information including at least one of the following:

[0043] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0044] In one implementation, the method is applied to a source network device without random access handover, and the method further includes:

[0045] When the result of the UE performing handover without random access is a handover failure, at least any two of the following are sent to the target network device for handover without random access through the Xn / NG interface: the parameter information, the failure type of the UE failing to perform handover without random access or near failure is no random access, and the cell information of the source network device and the target network device, or, the parameter information is sent to the target network device or the failure type of the UE failing to perform handover without random access or near failure is no random access.

[0046] In one implementation, the retransmission information includes at least one of the following:

[0047] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0048] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0049] In one implementation, the SSB threshold information includes at least one of the following:

[0050] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0051] In one implementation, the SSB information includes at least one of the following:

[0052] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0053] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0054] Indication information of whether the UE performs handover without random access;

[0055] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0056] Indication of whether the UE falls back from non-random access handover to random access handover.

[0057] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0058] In a fourth aspect, the present application provides a network optimization device, applied to a UE, comprising:

[0059] A processing module, configured to perform handover without random access;

[0060] A sending module, configured to send parameter information related to non-random access handover to a network device, wherein the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0061] Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0062] In one implementation, the retransmission information includes at least one of the following:

[0063] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0064] In one implementation, the SSB information includes: SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0065] In one implementation, the SSB threshold information includes at least one of the following:

[0066] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0067] In one implementation, the SSB information includes at least one of the following:

[0068] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0069] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0070] Indication information of whether the UE performs handover without random access;

[0071] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0072] Indication of whether the UE falls back from non-random access handover to random access handover.

[0073] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0074] In a fifth aspect, the present application provides a network optimization device, applied to a network device, comprising:

[0075] A receiving module, configured to receive parameter information related to non-random access handover sent by a UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0076] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0077] In one implementation, the retransmission information includes at least one of the following:

[0078] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0079] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0080] In one implementation, the SSB threshold information includes at least one of the following:

[0081] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0082] In one implementation, the SSB information includes at least one of the following:

[0083] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0084] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0085] Indication information of whether the UE performs handover without random access;

[0086] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0087] Indication of whether the UE falls back from non-random access handover to random access handover.

[0088] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0089] In one implementation, the network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, and the apparatus further includes:

[0090] A sending module is used to send the parameter information to the source network device and / or the target network device.

[0091] In one implementation, the sending module includes:

[0092] The first sending unit is configured to send the parameter information to the target network device through an Xn / NG interface when a result of the UE performing non-random access handover is a radio link failure.

[0093] In one implementation, the sending module includes:

[0094] The second sending unit is configured to send the parameter information to the source network device through an Xn / NG interface when the result of the UE performing the non-random access handover is a handover failure.

[0095] In a sixth aspect, the present application provides a network optimization device, applied to a source network device or a target network device without random access handover, comprising:

[0096] a receiving module, configured to receive parameter information related to non-random access handover sent by a first network device, wherein the first network device is a network device other than the source network device and the target network device, the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0097] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0098] In one implementation, the apparatus further includes:

[0099] A sending module is used to send at least any two of the following to the target network device for handover without random access through the Xn / NG interface when the result of the UE performing handover without random access is handover failure: the parameter information, the failure type of the UE failing to perform handover without random access or near failure is no random access, and the cell information of the source network device and the target network device, or, to send the parameter information or the failure type of the UE failing to perform handover without random access or near failure is no random access to the target network device.

[0100] In one implementation, the retransmission information includes at least one of the following:

[0101] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0102] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0103] In one implementation, the SSB threshold information includes at least one of the following:

[0104] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0105] In one implementation, the SSB information includes at least one of the following:

[0106] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0107] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0108] Indication information of whether the UE performs handover without random access;

[0109] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0110] Indication of whether the UE falls back from non-random access handover to random access handover.

[0111] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0112] In a seventh aspect, the present application provides a network optimization device, including a memory, a transceiver, and a processor:

[0113] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0114] Sending parameter information related to non-random access handover to a network device, where the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0115] Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0116] In one implementation, the retransmission information includes at least one of the following:

[0117] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0118] In one implementation, the SSB information includes: SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0119] In one implementation, the SSB threshold information includes at least one of the following:

[0120] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0121] In one implementation, the SSB information includes at least one of the following:

[0122] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0123] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0124] Indication information of whether the UE performs handover without random access;

[0125] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0126] Indication of whether the UE falls back from non-random access handover to random access handover.

[0127] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0128] In an eighth aspect, the present application provides a network optimization device, including a memory, a transceiver, and a processor:

[0129] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0130] receiving parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following:

[0131] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0132] In one implementation, the retransmission information includes at least one of the following:

[0133] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0134] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0135] In one implementation, the SSB threshold information includes at least one of the following:

[0136] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0137] In one implementation, the SSB information includes at least one of the following:

[0138] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0139] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0140] Indication information of whether the UE performs handover without random access;

[0141] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0142] Indication of whether the UE falls back from non-random access handover to random access handover.

[0143] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0144] In one implementation, the network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, and the processor is configured to execute:

[0145] The parameter information is sent to the source network device and / or the target network device.

[0146] In one implementation, the processor is configured to execute:

[0147] When the result of the UE performing the non-random access handover is a radio link failure, the parameter information is sent to the target network device through the Xn / NG interface.

[0148] In one implementation, the processor is configured to execute:

[0149] When the result of the UE performing the non-random access handover is a handover failure, the parameter information is sent to the source network device through the Xn / NG interface.

[0150] In a ninth aspect, the present application provides a network optimization device, including a memory, a transceiver, and a processor:

[0151] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0152] Receiving parameter information related to a non-random access handover sent by a first network device, wherein the first network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, the parameter information being used for network optimization, and the parameter information including at least one of the following:

[0153] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0154] In one implementation, the processor is further configured to execute:

[0155] A sending module is used to send at least any two of the following to the target network device for handover without random access through the Xn / NG interface when the result of the UE performing handover without random access is handover failure: the parameter information, the failure type of the UE failing to perform handover without random access or near failure is no random access, and the cell information of the source network device and the target network device, or, to send the parameter information or the failure type of the UE failing to perform handover without random access or near failure is no random access to the target network device.

[0156] In one implementation, the retransmission information includes at least one of the following:

[0157] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0158] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether random access-free switching can be performed.

[0159] In one implementation, the SSB threshold information includes at least one of the following:

[0160] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0161] In one implementation, the SSB information includes at least one of the following:

[0162] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0163] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0164] Indication information of whether the UE performs handover without random access;

[0165] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0166] Indication of whether the UE falls back from non-random access handover to random access handover.

[0167] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0168] In a tenth aspect, the present application provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method described in the first aspect, the second aspect or the third aspect.

[0169] It should be understood that the contents described in the above summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0170] In order to more clearly illustrate the technical solutions in this application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0171] Figure 1 It is a satellite conversion schematic;

[0172] Figure 2 It is a flowchart of a handover without random access;

[0173] Figure 3 This is a flow chart of a network optimization method provided in an embodiment of the present application;

[0174] Figure 4 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 1 ;

[0175] Figure 5 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 2 ;

[0176] Figure 6 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 3 ;

[0177] Figure 7 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 4 ;

[0178] Figure 8 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 5 ;

[0179] Figure 9 This is a schematic diagram of the structure of a network optimization device provided in an embodiment of the present application. Figure 6 . DETAILED DESCRIPTION

[0180] In embodiments of the present invention, the term "and / or" describes the association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0181] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0182] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0183] The embodiments of the present application provide a network optimization method and apparatus to avoid problems such as non-random access handover failure or near failure and resource waste due to unreasonable configuration.

[0184] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0185] The technical solutions provided in the embodiments of the present application can be applicable to a variety of systems. For example, applicable systems may be long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems and their evolved communication systems, etc. These various systems may include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0186] The terminal device involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device may be a USB storage device, other personal computer memory devices, and a dongle. It may also communicate with one or more core networks (CN) via a radio access network (RAN). A wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device that exchanges language and / or data with a radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablet computers, Machine-type Communication (MTC) terminal devices, etc. Wireless terminal devices may also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminal devices, access terminals, user terminals, user agents, user devices, and wireless access points and routers / modems that meet the limitations of this definition, but are not limited in the embodiments of the present application.

[0187] The network device involved in the embodiments of the present application may be an access network device, such as a base station, which may include multiple cells providing services to the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be an evolutionary network device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, etc., or a home evolved Node B (HeNB), a relay node, a femto, a pico base station (pico), a network test device, etc., which is not limited in the embodiments of the present application. In some network structures, network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and the distributed unit may also be geographically separated. The network device involved in the embodiments of the present application may be a core network device.

[0188] The terminal device in the embodiment of the present application sends relevant information or similar descriptions to the network device, which only indicates that the terminal device sends the relevant information in the form of a wireless signal, and its intended recipient is the network device. The network device can obtain the relevant information by receiving the wireless signal.

[0189] In the NTN scenario, most terminals will perform cell switching operations at a close time, for example, the terminal performs cell switching operations when the earth-fixed cell or quasi-earth fixed cell stops serving. Figure 1As shown in FIG, the serving satellite switches at time T. The source satellite SAT1 serves the ground area A before time T, while the target satellite SAT2 serves the ground area A after time T. The terminals in the ground area A stop data transmission with the source satellite SAT1 at time T and start the synchronization process with the target satellite SAT2. As a result, most terminals in the ground area A perform cell switching operations at a close time, which may cause a random access signaling storm.

[0190] In order to solve the above-mentioned signaling storm problem, a RACH-less HO solution is introduced in the related art. The RACH-less HO process is described in detail. Figure 2 As shown,

[0191] Step 1: The source network device triggers a handover request, which carries service-related and UE-related information. Optionally, the handover can be a conditional handover (CHO) based on time or location. For example, the handover request carries a time-based CHO time window [T1, T2].

[0192] Step 2: The target network device receives the UE, reserves resources for it, and responds with a Handover Request Acknowledgement, which includes an RRC Reconfiguration message that configures the UE for handover to the target network device. Optionally, if the handover is time-based CHO, the target network device only needs to reserve resources for the UE within [T1, T2].

[0193] Step 3: The source network device sends an RRC message to the UE. In addition to the information required for the UE to access the target network device (legacy content), the RRC message can also include RACH-less related information to support the UE to access the target network via RACH-less. Optionally, if the handover is based on time or location CHO, the source network device also needs to include the triggering conditions for the UE's time-based or location-based CHO in the RRC message.

[0194] Step 4: The UE executes the RRC message and accesses the target network device. Optionally, if CHO is based on time or location, the UE needs to meet the CHO triggering conditions before executing the RRC message and accessing the target network device.

[0195] Step 5: The UE uses a non-random access method to send uplink data using a pre-assigned grant.

[0196] Currently, the problem of UE failing to access the network without random access due to improper configuration during handover without random access, which leads to handover failure and radio link failure, cannot be optimized, resulting in network performance degradation. Even for scenarios where the random access is successful or close to failure, the network side cannot further perform configuration optimization or other configuration enhancement related to resource allocation. In view of this, an embodiment of the present application proposes a network optimization method, in which the UE reports parameter information related to the random access handover to a network device, thereby helping the network side to optimize the network, thereby avoiding failure problems caused by improper configuration or avoiding resource waste.

[0197] Figure 3 This is a flow chart of a network optimization method provided by an embodiment of the present application. Figure 3 As shown, the method includes:

[0198] S301. The UE sends parameter information related to non-random access switching to a network device. The parameter information is used for network optimization. The parameter information includes at least one of the following: retransmission information of uplink data, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0199] In the embodiments of the present application, it is not limited that the UE sends the parameter information related to the random access handover to the network device immediately after performing the non-random access handover. For example, the UE may send the parameter information related to the random access handover to the network device within a period of time after performing the non-random access handover, for example, within 48 hours. Optionally, the UE may send the parameter information related to the non-random access handover to the network device in response to a request from the network device. Optionally, the network device may be the source network device or the target network device of the non-random access handover process corresponding to the parameter information, or may be a network device other than the source network device and the target network device of the non-random access handover process corresponding to the parameter information. It is understandable that in the case where the network device is a network device other than the source network device and the target network device, the network device may resend the received parameter information related to the non-random access handover to the source network device and / or the target network device, so as to facilitate the source network device and / or the target network device to perform network optimization.

[0200] In an embodiment of the present application, regardless of whether the result of the UE performing the non-random access handover is successful or failed, the UE can send parameter information related to the non-random access handover to the network device. In this way, if the non-random access handover fails, the network side can perform network optimization based on the parameter information to avoid subsequent non-random access handover failures. If the non-random access handover is successful, the network side can also perform network optimization such as resource allocation optimization and configuration enhancement.

[0201] The parameter information related to the non-random access handover sent by the UE to the network device includes at least one of the following: retransmission information of uplink data, synchronization signal block (SSB) information, time advance (TA), and indication information for performing non-random access handover. Among them, the retransmission information of the uplink data reported by the UE can be used to optimize the configuration related to retransmission to avoid resource waste or non-random access handover failure caused by improper retransmission configuration; the SSB information reported by the UE can be used to optimize the conditions for whether the UE can perform non-random access handover to avoid resource waste or non-random access handover failure caused by improper access condition configuration; the TA configuration can affect whether the uplink signal sent by the UE can be synchronized with the network device and whether it can be successfully decoded by the network device. By optimizing the TA configuration reported by the UE, the non-random access handover failure caused by the failure to successfully decode the uplink signal can be avoided; the indication information for performing non-random access handover can be used by the network side to analyze the cause of the failure and perform corresponding optimization.

[0202] The following describes each parameter information separately.

[0203] Optionally, the retransmission information of the uplink data includes at least one of the following: a retransmission time, a preconfigured authorization period, a multiple of the preconfigured authorization period, and a number of retransmissions.

[0204] The retransmission time can be understood as the time interval for the UE to retransmit the uplink data through the pre-configured authorization next time if the UE fails to transmit uplink data through the pre-configured authorization. If the retransmission time is too short, the UE may frequently attempt to retransmit, resulting in a waste of resources. For example, the uplink data has been successfully transmitted, but due to the long latency of the NTN, the UE believes that the uplink data has not been successfully transmitted before the downlink feedback message is delivered to the UE, and retransmits, resulting in a waste of resources. If the retransmission time is too long, since retransmission can only be performed before the T304 timer expires, the retransmission time interval is long, the number of retransmissions is reduced, and the success probability is reduced, which can easily lead to a failure of no random access. Therefore, the network side can perform corresponding optimization based on the retransmission time reported by the UE to avoid resource waste or failure of no random access.

[0205] The preconfigured grant period and its multiples indirectly reflect the retransmission time. The preconfigured grant period and its multiples represent the retransmission time. If the network also stores the preconfigured grant period or its multiples, the UE may report the other unstored item separately.

[0206] The UE reports the retransmission time, preconfigured authorization period or preconfigured authorization period to the network device, which can help the network side optimize the retransmission-related configuration. In addition, the UE reporting the preconfigured authorization period can also help the network side optimize the preconfigured authorization period configured for non-random access.

[0207] Since non-random access does not introduce a maximum number of retransmissions, theoretically, the UE can retransmit an unlimited number of times before the T304 timer expires. However, excessive retransmissions can indirectly indicate a shorter retransmission time. Furthermore, reporting the number of retransmissions allows the network device to understand the UE's access conditions. For example, excessive retransmissions may indicate poor uplink channel quality or improper TA configuration, requiring network optimization.

[0208] Optionally, the SSB information includes: SSB threshold information, where the SSB threshold information is used to determine whether non-random access switching can be performed.

[0209] In the scheme of non-random access switching, the UE will measure the SSB that supports non-random access. The measurement results include signal quality, for example, the signal quality can be the reference signal received power (RSRP), signal to interference plus noise ratio (SINR), etc. If the signal quality is higher than the corresponding threshold, uplink data can be sent on the SSB through pre-allocated authorization resources. If the threshold is set too high, only a small number of UEs will be able to perform non-random access switching, resulting in more UEs still performing contention-based random access procedures, which is prone to signaling storms, reducing the random access success rate, and thus reducing the switching success rate. If the threshold is set too low, on the one hand, too many pre-allocated authorization resources need to be reserved for non-random access switching, which may result in resource waste. On the other hand, the network side may not have reserved enough pre-allocated authorization resources for non-random access switching, resulting in the failure of non-random access switching. Therefore, the network side can optimize the threshold based on the SSB threshold information reported by the UE and the actual situation of the UE performing non-random access switching to avoid signaling storms, improve the switching success rate, and avoid resource waste.

[0210] Optionally, the SSB threshold information includes at least one of the following: a signal quality threshold corresponding to each SSB for performing non-random access handover, and a signal quality threshold corresponding to an SSB to which the UE successfully accesses the non-random access handover. It is understandable that the SSB threshold information may carry identification information of the corresponding SSB.

[0211] The UE may report the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access handover to optimize the threshold configuration. Alternatively, the UE may report the signal quality threshold corresponding to each SSB on which non-random access handover can be performed, which includes the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access handover and the signal quality thresholds corresponding to other SSBs. In this case, the network side may perform balanced optimization on the configuration of each SSB.

[0212] Optionally, the SSB information includes at least one of the following: identification information of an SSB configured with no random access switching, identification information of an SSB not configured with no random access switching, and identification information of an SSB to which the UE successfully accesses after performing no random access switching.

[0213] As previously mentioned, the random access process of a large number of UEs can generate a signaling storm, leading to failure or near failure. The network device can optimize and configure the SSB with non-random access handover configuration to enable more UEs to perform non-random access handover and avoid failure or near failure. Therefore, the UE reports the SSB configuration non-random access handover to the network device, so that the network side can optimize which SSBs are configured with non-random access handover.

[0214] Optionally, the TA reported by the UE can be 0 or the TA of the source network device. The TA of the source network device can be a specific time or time indication information. If the TA is configured improperly, the uplink signal sent by the UE may not be synchronized with the network device and cannot be successfully decoded by the network device. In this case, even multiple retransmissions of the uplink data will be useless, and eventually the T304 timer will time out, and the cell handover will fail. Therefore, by having the UE report the TA, the network side can perform corresponding TA optimization. For example, it can consider changing the originally configured value from 0 to the TA of the source network device, or changing the originally configured TA of the source network device to 0.

[0215] Optionally, the indication information for performing non-random access switching includes at least one of the following: indication information of whether the UE performs non-random access switching; the failure type of the UE's failure or near failure in performing non-random access switching is non-random access; and indication information of whether the UE falls back from non-random access switching to random access switching.

[0216] Among them, the indication information of whether the UE performs a handover without random access can be used to distinguish it from the case where the UE performs a handover without random access. The failure type of the UE failing or nearly failing to perform a handover without random access is no random access, which can be used by the network side to analyze the specific circumstances of the failure for network optimization. For example, for the scenario of Radio Link Failure (RLF), in the embodiment of the present application, a new failure type can be introduced on the basis of the existing technology. For example, by using the parameter RACH-less in the RLF report reported by the UE to indicate that the generation of this RLF is due to the problem of no random access, the network side can perform corresponding network optimization.

[0217] The indication information of whether the UE falls back to random access handover from non-random access handover can be used to indicate whether to fall back to random access handover. For example, if the UE measures SSBs configured with non-random access handover and the signal quality of all SSBs is less than the signal quality threshold, the UE falls back to traditional random access handover.

[0218] Optionally, the parameter information sent by the UE to the network device may be carried in a self-optimization network (SON) report or a predefined report. The predefined report may be a new report different from existing reports in the current related art.

[0219] In the network optimization method provided in the embodiment of the present application, on the network side, a network device receives parameter information related to non-random access handover sent by a UE. As described above, the network device may be a source network device or a target network device of the non-random access handover process corresponding to the parameter information, or may be a network device other than the source network device and the target network device of the non-random access handover process corresponding to the parameter information. In the case where the network device is a network device other than the source network device and the target network device, after receiving the parameter information related to non-random access handover sent by the UE, the network device sends the parameter information to the source network device and / or the target network device, so that the source network device and / or the target network device can perform network optimization.

[0220] For the purpose of explanation, the network device is a first network device, which is a network device other than the source network device and the target network device. The first network device receives parameter information related to non-random access handover sent by the UE, and sends the parameter information to the source network device and / or the target network device, so that the source network device and / or the target network device can perform network optimization. In this case, for the source network device or the target network device of the non-random access handover, the parameter information related to non-random access handover sent by the first network device is received, wherein the first network device is a network device other than the source network device and the target network device.

[0221] Optionally, when the result of the UE performing non-random access handover is a radio link failure, the first network device sends the parameter information to the target network device through the Xn / NG interface.

[0222] For example, the UE's access failure through pre-configuration authorization is classified as a radio link failure. After the UE reports a SON report or a new report according to the instruction of the first network device, the first network device that receives the UE report sends the SON report or the new report to the target network device through the Xn / NG interface. After the target network device analyzes the report, it performs network optimization on the target network device side without notifying the source network device.

[0223] Optionally, when the result of the UE performing handover without random access is a handover failure, the first network device sends parameter information to the source network device through the Xn / NG interface. Optionally, the source network device sends at least any two of the following to the target network device through the Xn / NG interface: parameter information, the failure type of the UE failing to perform handover without random access or nearly failing is no random access, and cell information of the source network device and the target network device, or, sends parameter information to the target network device or the failure type of the UE failing to perform handover without random access or nearly failing is no random access.

[0224] For example, the UE is classified as a handover failure through pre-configured authorization access failure. After the UE reports a SON report or a new report according to the instruction of the first network device, the first network device that receives the UE report sends the SON report or the new report to the source network device through the Xn / NG interface. After analysis, the source network device sends at least any two of the following to the target network device through the Xn / NG interface: the SON report or the new report, the UE fails to perform handover without random access or the failure type of the handover is close to no random access, and the cell information of the source network device and the target network device, or sends the SON report or the new report to the target network device or the UE fails to perform handover without random access or the failure type of the handover is close to no random access.

[0225] Optionally, when the UE is about to fail in performing a non-random access handover, the T304 timer reaches the timeout period. After the UE reports a SON report or a new report according to the instruction of the first network device, the first network device that receives the UE report sends the SON report or the new report to the source network device through the Xn / NG interface.

[0226] Optionally, when the UE successfully performs a non-random access handover, the UE reports a SON report or a new report. The first network device that receives the UE report sends the report to the source network device and / or target network device involved in the non-random access handover through the Xn / NG interface. The source network device and / or target network device can determine how to further perform network optimization, such as optimizing resource allocation.

[0227] The network optimization method provided in the embodiment of the present application reports parameter information of each scenario of success and failure of non-random access handover to the network device through the UE, so that the network side can perform corresponding network optimization to avoid failure of non-random access handover due to improper configuration, and further network optimization for the scenario of successful execution of non-random access handover.

[0228] Figure 4 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 1 , applied to UE, the network optimization device includes:

[0229] The sending module 401 is configured to send parameter information related to non-random access handover to a network device. The parameter information is used for network optimization and includes at least one of the following:

[0230] Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0231] In one implementation, the retransmission information includes at least one of the following:

[0232] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0233] In one implementation, the SSB information includes: SSB threshold information, where the SSB threshold information is used to determine whether non-random access switching can be performed.

[0234] In one implementation, the SSB threshold information includes at least one of the following:

[0235] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0236] In one implementation, the SSB information includes at least one of the following:

[0237] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0238] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0239] Indication information of whether the UE performs handover without random access;

[0240] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0241] Indication of whether the UE falls back from non-random access handover to random access handover.

[0242] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0243] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0244] Figure 5 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 2 , applied to network equipment, network optimization devices include:

[0245] The receiving module 501 is configured to receive parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization and includes at least one of the following:

[0246] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0247] In one implementation, the retransmission information includes at least one of the following:

[0248] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0249] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0250] In one implementation, the SSB threshold information includes at least one of the following:

[0251] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0252] In one implementation, the SSB information includes at least one of the following:

[0253] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0254] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0255] Indication information of whether the UE performs handover without random access;

[0256] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0257] Indication of whether the UE falls back from non-random access handover to random access handover.

[0258] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0259] In one implementation, the network device is a network device other than the source network device and the target network device of the non-random access handover process corresponding to the parameter information, and the apparatus further includes:

[0260] The sending module 502 is configured to send parameter information to the source network device and / or the target network device.

[0261] In one implementation, the sending module 502 includes:

[0262] The first sending unit is configured to send parameter information to a target network device through an Xn / NG interface when a result of the UE performing non-random access handover is a radio link failure.

[0263] In one implementation, the sending module includes:

[0264] The second sending unit is configured to send parameter information to the source network device through the Xn / NG interface when the result of the UE performing the non-random access handover is a handover failure.

[0265] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0266] Figure 6 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 3 , applied to a source network device or a target network device without random access handover, the network optimization device includes:

[0267] A receiving module 601 is configured to receive parameter information related to non-random access handover sent by a first network device, where the first network device is a network device other than the source network device and the target network device. The parameter information is used for network optimization and includes at least one of the following:

[0268] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0269] In one implementation, the apparatus further includes:

[0270] The sending module 602 is used to send at least any two of the following to the target network device of the non-random access handover through the Xn / NG interface when the result of the UE performing the non-random access handover is a handover failure: parameter information, the failure type of the UE failing to perform the non-random access handover or near failure is no random access, and the cell information of the source network device and the target network device, or, to send parameter information to the target network device or the failure type of the UE failing to perform the non-random access handover or near failure is no random access.

[0271] In one implementation, the retransmission information includes at least one of the following:

[0272] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0273] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0274] In one implementation, the SSB threshold information includes at least one of the following:

[0275] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0276] In one implementation, the SSB information includes at least one of the following:

[0277] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0278] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0279] Indication information of whether the UE performs handover without random access;

[0280] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0281] Indication of whether the UE falls back from non-random access handover to random access handover.

[0282] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0283] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0284] Figure 7 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 4 The network optimization device includes a memory 720, a transceiver 710, and a processor 700. The memory 720 is used to store computer programs; the transceiver 710 is used to send and receive data under the control of the processor 700;

[0285] Among them, Figure 7 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors 700 represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 710 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 730 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0286] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0287] Optionally, processor 700 may be a CPU (central processing unit), an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a CPLD (complex programmable logic device). The processor may also employ a multi-core architecture. The processor and memory may also be physically separated.

[0288] The processor 700 is configured to read the computer program in the memory and perform the following operations:

[0289] Send parameter information related to non-random access handover to the network device, where the parameter information is used for network optimization and includes at least one of the following:

[0290] Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

[0291] In one implementation, the retransmission information includes at least one of the following:

[0292] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0293] In one implementation, the SSB information includes: SSB threshold information, where the SSB threshold information is used to determine whether non-random access switching can be performed.

[0294] In one implementation, the SSB threshold information includes at least one of the following:

[0295] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0296] In one implementation, the SSB information includes at least one of the following:

[0297] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0298] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0299] Indication information of whether the UE performs handover without random access;

[0300] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0301] Indication of whether the UE falls back from non-random access handover to random access handover.

[0302] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0303] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0304] Figure 8 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 5 The network optimization device includes a memory 820, a transceiver 810, and a processor 800. The memory 820 is used to store computer programs; the transceiver 810 is used to send and receive data under the control of the processor 800;

[0305] Among them, Figure 8 In the embodiment of the present invention, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors 800 represented by processor 800 and memory represented by memory 820. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described herein. The bus interface provides an interface. The transceiver 810 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0306] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0307] Optionally, the processor 800 may be a CPU (central processing unit), an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a CPLD (complex programmable logic device). The processor may also employ a multi-core architecture. The processor and memory may also be physically separated.

[0308] The processor 800 is configured to read the computer program in the memory and perform the following operations:

[0309] Receive parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization and includes at least one of the following:

[0310] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0311] In one implementation, the retransmission information includes at least one of the following:

[0312] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0313] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0314] In one implementation, the SSB threshold information includes at least one of the following:

[0315] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0316] In one implementation, the SSB information includes at least one of the following:

[0317] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0318] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0319] Indication information of whether the UE performs handover without random access;

[0320] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0321] Indication of whether the UE falls back from non-random access handover to random access handover.

[0322] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0323] In one implementation, the network device is a network device other than the source network device and the target network device of the non-random access handover process corresponding to the parameter information, and the processor 800 is configured to execute:

[0324] The parameter information is sent to the source network device and / or the target network device.

[0325] In one implementation, the processor 800 is configured to execute:

[0326] When the result of the UE performing the non-random access handover is a radio link failure, the parameter information is sent to the target network device through the Xn / NG interface.

[0327] In one implementation, the processor 800 is configured to execute:

[0328] When the result of the UE performing the handover without random access is a handover failure, the parameter information is sent to the source network device through the Xn / NG interface.

[0329] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0330] Figure 9 This is a schematic diagram of the structure of a network optimization device provided by this application Figure 6 The network optimization device includes a memory 920, a transceiver 910, and a processor 900. The memory 920 is used to store computer programs; the transceiver 910 is used to send and receive data under the control of the processor 900;

[0331] Among them, Figure 9 In the embodiment of the present invention, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors 900 represented by processor 900 and memory represented by memory 920. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 910 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0332] The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.

[0333] Optionally, the processor 900 may be a CPU (central processing unit), an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a CPLD (complex programmable logic device). The processor may also employ a multi-core architecture. The processor and memory may also be physically separated.

[0334] The processor 900 is configured to read the computer program in the memory and perform the following operations:

[0335] receiving parameter information related to a non-random access handover sent by a first network device, where the first network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, the parameter information being used for network optimization, and the parameter information including at least one of the following:

[0336] Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

[0337] In one implementation, the processor 900 is further configured to execute:

[0338] A sending module is used to send at least any two of the following to the target network device for handover without random access through the Xn / NG interface when the result of the UE performing handover without random access is handover failure: parameter information, the failure type of the UE failing to perform handover without random access or near failure is no random access, and cell information of the source network device and the target network device, or, to send parameter information to the target network device or the failure type of the UE failing to perform handover without random access or near failure is no random access.

[0339] In one implementation, the retransmission information includes at least one of the following:

[0340] Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

[0341] In one implementation, the SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

[0342] In one implementation, the SSB threshold information includes at least one of the following:

[0343] The signal quality threshold for performing non-random access switching corresponding to each SSB, and the signal quality threshold for performing non-random access switching corresponding to the SSB to which the UE successfully accesses after performing non-random access switching.

[0344] In one implementation, the SSB information includes at least one of the following:

[0345] The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

[0346] In one implementation, the indication information for performing handover without random access includes at least one of the following:

[0347] Indication information of whether the UE performs handover without random access;

[0348] The failure type of the UE's failure or near failure in performing handover without random access is no random access;

[0349] Indication of whether the UE falls back from non-random access handover to random access handover.

[0350] In one implementation, the parameter information is carried in a self-optimizing network SON report or a predefined report.

[0351] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0352] It should be noted that the division of units in the embodiments of the present application is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0353] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various embodiments of the present application.

[0354] The present application provides a non-transitory readable storage medium, which stores a computer program. The computer program is used to enable a processor to execute the method of any of the above embodiments.

[0355] The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0356] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0357] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0358] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce an article of manufacture comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0359] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A network optimization method, characterized in that: Applied to a UE, the method includes: Sending parameter information related to non-random access handover to a network device, where the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

2. The method according to claim 1, characterized in that The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

3. The method according to claim 1, characterized in that The SSB information includes: SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

4. The method according to claim 3, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

5. The method according to claim 1, wherein The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

6. The method according to claim 1, characterized in that The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

7. The method according to any one of claims 1 to 6, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

8. A network optimization method, characterized in that: Applicable to network equipment, including: receiving parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

9. The method according to claim 8, characterized in that The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

10. The method according to claim 8, characterized in that The SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

11. The method according to claim 10, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

12. The method according to claim 8, characterized in that The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

13. The method according to claim 8, characterized in that The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

14. The method according to claim 8, characterized in that The network device is a network device other than a source network device and a target network device in a non-random access handover process corresponding to the parameter information, and the method further includes: The parameter information is sent to the source network device and / or the target network device.

15. The method according to claim 14, characterized in that The sending the parameter information to the source network device and / or the target network device includes: When the result of the UE performing the non-random access handover is a radio link failure, the parameter information is sent to the target network device through the Xn / NG interface.

16. The method according to claim 14, characterized in that The sending the parameter information to the source network device and / or the target network device includes: When the result of the UE performing the non-random access handover is a handover failure, the parameter information is sent to the source network device through the Xn / NG interface.

17. The method according to any one of claims 8 to 16, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

18. A network optimization method, characterized in that: Applicable to source or target network devices without random access handover, including: receiving parameter information related to non-random access handover sent by a first network device, wherein the first network device is a network device other than the source network device and the target network device, the parameter information being used for network optimization, and the parameter information including at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

19. The method according to claim 18, characterized in that The method is applied to a source network device without random access handover, and the method further includes: In a case where the result of the UE performing handover without random access is a handover failure, at least any two of the following are sent to the target network device for handover without random access through the Xn / NG interface: the parameter information, the failure type of the UE failing to perform handover without random access or being close to failure is no random access, and the cell information of the source network device and the target network device, or, the parameter information is sent to the target network device or the failure type of the UE failing to perform handover without random access or being close to failure is no random access.

20. The method according to claim 18, wherein The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

21. The method according to claim 18, wherein The SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

22. The method according to claim 21, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

23. The method according to claim 18, wherein The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

24. The method according to claim 18, wherein The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

25. The method according to any one of claims 18 to 24, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

26. A network optimization device, characterized in that: Applied to UE, including: A sending module, configured to send parameter information related to non-random access handover to a network device, wherein the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

27. A network optimization device, characterized in that: Applicable to network equipment, including: A receiving module, configured to receive parameter information related to non-random access handover sent by a UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

28. A network optimization device, characterized in that: Applicable to source or target network devices without random access handover, including: a receiving module, configured to receive parameter information related to non-random access handover sent by a first network device, wherein the first network device is a network device other than the source network device and the target network device, the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

29. A network optimization device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending parameter information related to non-random access handover to a network device, where the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, synchronization signal block SSB information, time advance, and indication information for performing non-random access switching.

30. The device according to claim 29, characterized in that The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

31. The device according to claim 29, characterized in that The SSB information includes: SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

32. The device according to claim 31, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

33. The device according to claim 29, characterized in that The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

34. The device according to claim 29, characterized in that The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

35. The device according to any one of claims 29 to 34, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

36. A network optimization device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: receiving parameter information related to non-random access handover sent by the UE, where the parameter information is used for network optimization, and the parameter information includes at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

37. The device according to claim 36, characterized in that The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

38. The device according to claim 36, characterized in that The SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

39. The device according to claim 38, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

40. The device according to claim 36, wherein The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

41. The device according to claim 36, characterized in that The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

42. The device according to claim 36, characterized in that The network device is another network device other than the source network device and the target network device of the non-random access handover process corresponding to the parameter information, and the processor is configured to execute: The parameter information is sent to the source network device and / or the target network device.

43. The device according to claim 42, characterized in that The processor is configured to execute: When the result of the UE performing the non-random access handover is a radio link failure, the parameter information is sent to the target network device through the Xn / NG interface.

44. The device according to claim 42, characterized in that The processor is configured to execute: When the result of the UE performing the non-random access handover is a handover failure, the parameter information is sent to the source network device through the Xn / NG interface.

45. The device according to any one of claims 36 to 44, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

46. ​​A network optimization device, characterized in that: Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receiving parameter information related to a non-random access handover sent by a first network device, wherein the first network device is a network device other than a source network device and a target network device of a non-random access handover process corresponding to the parameter information, the parameter information being used for network optimization, and the parameter information including at least one of the following: Uplink data retransmission information, SSB information, timing advance, and indication information for performing non-random access switching.

47. The device according to claim 46, characterized in that The processor is further configured to execute: In a case where the result of the UE performing handover without random access is a handover failure, at least any two of the following are sent to the target network device for handover without random access through the Xn / NG interface: the parameter information, the failure type of the UE failing to perform handover without random access or being close to failure is no random access, and the cell information of the source network device and the target network device, or, the parameter information is sent to the target network device or the failure type of the UE failing to perform handover without random access or being close to failure is no random access.

48. The device according to claim 46, characterized in that The retransmission information includes at least one of the following: Retransmission time, preconfigured authorization period, multiple of preconfigured authorization period, and number of retransmissions.

49. The device according to claim 46, characterized in that The SSB information includes SSB threshold information, and the SSB threshold information is used to determine whether non-random access switching can be performed.

50. The device according to claim 49, characterized in that The SSB threshold information includes at least one of the following: The signal quality threshold corresponding to each SSB that can perform non-random access switching, and the signal quality threshold corresponding to the SSB to which the UE successfully accesses without random access switching can perform non-random access switching.

51. The device according to claim 46, characterized in that The SSB information includes at least one of the following: The identification information of the SSB configured without random access switching, the identification information of the SSB not configured without random access switching, and the identification information of the SSB to which the UE successfully accesses after performing non-random access switching.

52. The device according to claim 46, characterized in that The instruction information for performing handover without random access includes at least one of the following: Indication information of whether the UE performs handover without random access; The failure type of the UE's failure or near failure in performing handover without random access is no random access; Indication of whether the UE falls back from non-random access handover to random access handover.

53. The device according to any one of claims 46 to 52, characterized in that The parameter information is carried in a self-optimizing network SON report or a predefined report.

54. A non-transitory readable storage medium, characterized in that The non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the method according to any one of claims 1 to 25.

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