Information transmission method and apparatus, device and non-transitory readable storage medium

Abstract

Provided in the present disclosure are an information transmission method and apparatus, a device and a non-transitory readable storage medium. The information transmission method is applied to a terminal, and comprises: receiving first signaling sent by a network device, wherein the first signaling is configured to trigger at least one of the following operations: feeding back channel state information (CSI) to the network device, measuring a reference signal corresponding to the CSI, and transmitting the reference signal; and sending the CSI to the network device.

Description

An information transmission method, apparatus, device, and non-transiently readable storage medium

[0001] This disclosure claims priority to Chinese Patent Application No. 202411594043.7, filed with the Chinese Patent Office on November 8, 2024, entitled "An Information Transmission Method, Apparatus, Device and Non-Transiently Readable Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of communication technology, and in particular to an information transmission method, apparatus, device, and non-transiently readable storage medium. Background Technology

[0003] In related technologies, when a terminal moves from the coverage area of ​​one cell to the coverage area of ​​another cell, it needs to perform cell handover operations. However, cell handover schemes in related technologies have defects such as the inability to guarantee data transmission performance, and there are no related schemes that can support the improvement of data transmission performance.

[0004] As shown above, there is a problem in the relevant technologies that cannot support and guarantee the data transmission performance of cell handover schemes. Summary of the Invention

[0005] The purpose of this disclosure is to provide an information transmission method, apparatus, device, and non-transiently readable storage medium to solve the problem in related technologies that cannot support and guarantee the data transmission performance of cell handover schemes.

[0006] To address the aforementioned technical problems, this disclosure provides an information transmission method applied to a terminal, comprising:

[0007] Receive a first signaling; the first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0008] Send CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

[0009] In some embodiments, the first signaling includes at least one of the following:

[0010] Media Access Control (MAC-CE) signaling used to activate the Transmission Configuration Indicator (TCI) status of candidate cells;

[0011] The terminal's serving cell sends downlink control information (DCI) signaling.

[0012] MAC-CE signaling used to indicate cell handover;

[0013] The terminal sends a random access response to the target cell;

[0014] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0015] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0016] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0017] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0018] The terminal reports the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR) in LTM; LTM represents Layer 1 and / or Layer 2 triggered mobility.

[0019] The target cell and / or TCI status indicated in the cell handover signaling;

[0020] The TCI status of at least one cell activated by MAC-CE signaling;

[0021] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0022] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0023] In some embodiments, sending a CSI to the network device includes:

[0024] Send CSI to the network device via the first resource;

[0025] The first resource includes at least one of the following:

[0026] Physical uplink shared channel (PUSCH) resources used to carry Radio Resource Control (RRC) requests sent to the target cell;

[0027] Candidate cells are pre-configured with authorized Physical Uplink Shared Channel (CG-PUSCH) resources;

[0028] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0029] The first signaling indicates the channel resources of the CSI.

[0030] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0031] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0032] In some embodiments, sending CSI to the network device includes:

[0033] Send CSI to the network device after the first time delay;

[0034] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0035] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0036] This disclosure also provides an information transmission method applied to a network device, including:

[0037] Send a first signaling to the terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal;

[0038] Receive the CSI sent by the terminal.

[0039] In some embodiments, the first signaling includes at least one of the following:

[0040] MAC-CE signaling used to activate the TCI state of candidate cells;

[0041] The DCI signaling sent by the serving cell of the terminal;

[0042] MAC-CE signaling used to indicate cell handover;

[0043] The terminal sends a random access response to the target cell;

[0044] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0045] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0046] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0047] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0048] The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting; LTM indicates that mobility is triggered by Layer 1 and / or Layer 2.

[0049] The target cell and / or TCI status indicated in the cell handover signaling;

[0050] The TCI status of at least one cell activated by MAC-CE signaling;

[0051] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0052] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0053] In some embodiments, receiving the CSI sent by the terminal includes:

[0054] Receive the CSI sent by the terminal through the first resource;

[0055] The first resource includes at least one of the following:

[0056] PUSCH resources used to carry RRC requests sent to the target cell;

[0057] CG-PUSCH resources pre-configured for candidate cells;

[0058] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0059] The first signaling indicates the channel resources of the CSI.

[0060] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0061] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0062] In some embodiments, receiving the CSI sent by the terminal includes:

[0063] Receive the CSI sent by the terminal after the first time delay;

[0064] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0065] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0066] This disclosure provides an information transmission method applied to a network device, the method comprising:

[0067] Send a first signaling to the terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0068] This disclosure provides an information transmission method applied to a network device, the method comprising:

[0069] The receiving terminal sends a CSI, which is sent to the network device when the terminal receives a first signaling, the first signaling being used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0070] This disclosure also provides an information transmission device, which is a terminal, including a memory, a transceiver, and a processor.

[0071] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0072] The transceiver receives a first signaling message; the first signaling message is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0073] The transceiver sends a CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

[0074] In some embodiments, the first signaling includes at least one of the following:

[0075] Media Access Control (MAC-CE) signaling used to activate the Transmission Configuration Indicator (TCI) status of candidate cells;

[0076] The terminal's serving cell sends downlink control information (DCI) signaling.

[0077] MAC-CE signaling used to indicate cell handover;

[0078] The terminal sends a random access response to the target cell;

[0079] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0080] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0081] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0082] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0083] The terminal reports the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR) in LTM; LTM represents Layer 1 and / or Layer 2 triggered mobility.

[0084] The target cell and / or TCI status indicated in the cell handover signaling;

[0085] The TCI status of at least one cell activated by MAC-CE signaling;

[0086] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0087] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0088] In some embodiments, sending a CSI to the network device includes:

[0089] Send CSI to the network device via the first resource;

[0090] The first resource includes at least one of the following:

[0091] Physical uplink shared channel (PUSCH) resources used to carry Radio Resource Control (RRC) requests sent to the target cell;

[0092] Candidate cells are pre-configured with authorized Physical Uplink Shared Channel (CG-PUSCH) resources;

[0093] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0094] The first signaling indicates the channel resources of the CSI.

[0095] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0096] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0097] In some embodiments, sending CSI to the network device includes:

[0098] Send CSI to the network device after the first time delay;

[0099] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0100] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0101] This disclosure also provides an information transmission device, which is a network device, including a memory, a transceiver, and a processor.

[0102] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0103] The transceiver sends a first signaling message to the terminal; the first signaling message is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0104] The transceiver receives the CSI sent by the terminal.

[0105] In some embodiments, the first signaling includes at least one of the following:

[0106] MAC-CE signaling used to activate the TCI state of candidate cells;

[0107] The DCI signaling sent by the serving cell of the terminal;

[0108] MAC-CE signaling used to indicate cell handover;

[0109] The terminal sends a random access response to the target cell;

[0110] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0111] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0112] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0113] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0114] The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting; LTM indicates that mobility is triggered by Layer 1 and / or Layer 2.

[0115] The target cell and / or TCI status indicated in the cell handover signaling;

[0116] The TCI status of at least one cell activated by MAC-CE signaling;

[0117] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0118] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0119] In some embodiments, receiving the CSI sent by the terminal includes:

[0120] Receive the CSI sent by the terminal through the first resource;

[0121] The first resource includes at least one of the following:

[0122] PUSCH resources used to carry RRC requests sent to the target cell;

[0123] CG-PUSCH resources pre-configured for candidate cells;

[0124] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0125] The first signaling indicates the channel resources of the CSI.

[0126] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0127] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0128] In some embodiments, receiving the CSI sent by the terminal includes:

[0129] Receive the CSI sent by the terminal after the first time delay;

[0130] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0131] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0132] This disclosure also provides an information transmission device, which is a network device, and includes a memory, a transceiver, and a processor.

[0133] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0134] The transceiver sends a first signaling message to the terminal; the first signaling message is used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0135] This disclosure also provides an information transmission device, which is a network device, and includes a memory, a transceiver, and a processor.

[0136] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0137] The transceiver receives a CSI sent by a terminal. The CSI is sent to the network device by the terminal upon receiving a first signaling, which triggers at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0138] This disclosure also provides an information transmission device applied to a terminal, comprising:

[0139] The first receiving unit is configured to receive a first signaling; the first signaling is configured to trigger at least one of the following operations: feeding back channel state information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0140] The first transmitting unit is used to transmit CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

[0141] In some embodiments, the first signaling includes at least one of the following:

[0142] Media Access Control (MAC-CE) signaling used to activate the Transmission Configuration Indicator (TCI) status of candidate cells;

[0143] The terminal's serving cell sends downlink control information (DCI) signaling.

[0144] MAC-CE signaling used to indicate cell handover;

[0145] The terminal sends a random access response to the target cell;

[0146] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0147] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0148] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0149] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0150] The terminal reports the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR) in LTM; LTM represents Layer 1 and / or Layer 2 triggered mobility.

[0151] The target cell and / or TCI status indicated in the cell handover signaling;

[0152] The TCI status of at least one cell activated by MAC-CE signaling;

[0153] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0154] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0155] In some embodiments, sending a CSI to the network device includes:

[0156] Send CSI to the network device via the first resource;

[0157] The first resource includes at least one of the following:

[0158] Physical uplink shared channel (PUSCH) resources used to carry Radio Resource Control (RRC) requests sent to the target cell;

[0159] Candidate cells are pre-configured with authorized Physical Uplink Shared Channel (CG-PUSCH) resources;

[0160] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0161] The first signaling indicates the channel resources of the CSI.

[0162] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0163] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0164] In some embodiments, sending CSI to the network device includes:

[0165] Send CSI to the network device after the first time delay;

[0166] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0167] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0168] This disclosure also provides an information transmission device applied to a network device, including:

[0169] The second sending unit is configured to send a first signaling to the terminal; the first signaling is configured to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal;

[0170] The second receiving unit is used to receive the CSI sent by the terminal.

[0171] In some embodiments, the first signaling includes at least one of the following:

[0172] MAC-CE signaling used to activate the TCI state of candidate cells;

[0173] The DCI signaling sent by the serving cell of the terminal;

[0174] MAC-CE signaling used to indicate cell handover;

[0175] The terminal sends a random access response to the target cell;

[0176] The DCI sent by the target cell of the terminal for scheduling random access response resources;

[0177] The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

[0178] In some embodiments, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0179] In some embodiments, the first cell and / or the reference signal resources are determined based on at least one of the following:

[0180] The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting; LTM indicates that mobility is triggered by Layer 1 and / or Layer 2.

[0181] The target cell and / or TCI status indicated in the cell handover signaling;

[0182] The TCI status of at least one cell activated by MAC-CE signaling;

[0183] The first signaling indicates the candidate cell identifier and / or reference signal resource index.

[0184] In some embodiments, the first signaling includes: information indication for channel resources carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

[0185] In some embodiments, receiving the CSI sent by the terminal includes:

[0186] Receive the CSI sent by the terminal through the first resource;

[0187] The first resource includes at least one of the following:

[0188] PUSCH resources used to carry RRC requests sent to the target cell;

[0189] CG-PUSCH resources pre-configured for candidate cells;

[0190] PUSCH resources dynamically allocated by candidate cells to carry the first uplink data;

[0191] The first signaling indicates the channel resources of the CSI.

[0192] In some embodiments, the first uplink data is the data of a reconfiguration completion message.

[0193] In some embodiments, the first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0194] In some embodiments, receiving the CSI sent by the terminal includes:

[0195] Receive the CSI sent by the terminal after the first time delay;

[0196] Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0197] In some embodiments, the CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0198] This disclosure also provides an information transmission device applied to a network device, the device comprising:

[0199] The second sending unit is configured to send a first signaling to the terminal; the first signaling is configured to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0200] This disclosure also provides an information transmission device applied to a network device, the device comprising:

[0201] The second receiving unit is configured to receive the CSI sent by the terminal, wherein the CSI is sent to the network device by the terminal upon receiving a first signaling, and the first signaling is configured to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0202] This disclosure also provides a non-transient readable storage medium storing a program for causing a processor to execute the aforementioned information transmission method on the terminal side or network device side.

[0203] The beneficial effects of the above-mentioned technical solution disclosed herein are as follows:

[0204] In the above scheme, the information transmission method receives a first signaling sent by a network device; the first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; sending the CSI to the network device; this enables the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, supporting the target cell to obtain the terminal's channel state information, thereby ensuring the data transmission performance of the terminal after cell handover without reducing cell handover latency, and effectively solving the problem in related technologies that cannot support and guarantee the data transmission performance of cell handover schemes. Attached Figure Description

[0205] Figure 1 is a schematic diagram of the wireless communication system architecture according to an embodiment of this disclosure;

[0206] Figure 2 is a schematic flowchart of an information transmission method according to an embodiment of this disclosure;

[0207] Figure 3 is a schematic flowchart of the information transmission method according to an embodiment of this disclosure;

[0208] Figure 4 is a schematic diagram of CSI reporting configuration according to an embodiment of this disclosure;

[0209] Figure 5 is a schematic diagram of the CSI reporting process according to an embodiment of this disclosure;

[0210] Figure 6 is a schematic diagram of the information transmission device structure according to an embodiment of this disclosure;

[0211] Figure 7 is a schematic diagram of the information transmission device structure according to an embodiment of this disclosure;

[0212] Figure 8 is a schematic diagram of the information transmission device structure according to an embodiment of this disclosure;

[0213] Figure 9 is a schematic diagram of the information transmission device structure according to an embodiment of this disclosure. Detailed Implementation

[0214] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0215] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0216] In this disclosure, the term "multiple" refers to two or more, and other quantifiers are similar.

[0217] It should be noted that the technical solutions provided in this disclosure are applicable to a variety of systems. For example, applicable systems may include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), 5th Generation Mobile Communication Technology (5G) New Radio (NR) and its evolution, and 6th Generation Mobile Communication Technology (6G), etc. All of these systems include terminal equipment and network equipment. The system may also include a core network component, such as an evolved packet system (EPS) or a 5G system (5GS).

[0218] Figure 1 shows a block diagram of a wireless communication system applicable to embodiments of the present disclosure. The wireless communication system includes a terminal device (also referred to simply as a terminal) and a network device.

[0219] The terminal devices involved in the embodiments of this disclosure can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in 5G or 6G systems, the terminal device may be called User Equipment (UE). Wireless terminal devices can be USB storage devices, other personal computer memory devices, and dongles. They can also communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. Examples of such devices include Personal Communication Service (PCS) telephones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), personal computers, tablets, and Machine-type Communication (MTC) terminal devices. Wireless terminal devices can also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile devices, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, and wireless access devices and routers / modems that meet the limitations of this definition, but are not limited to these in the embodiments of this disclosure.

[0220] The network device involved in this disclosure can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, the base station may also be called an access point, or 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 can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in this disclosure can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, network testing equipment, etc., and is not limited in this disclosure. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0221] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D MIMO, 3D MIMO, Full Dimension MIMO (FD-MIMO), or Massive MIMO, or it can be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0222] The following is a description of the solutions provided in the embodiments of this disclosure.

[0223] When a terminal moves from the coverage area of ​​one cell to another, a handover of the serving cell is required. Current mobility schemes (Layer 1 and / or Layer 2 Triggered Mobility (L1 / L2)) can achieve serving cell handover through L1 / L2 signaling, reducing latency, overhead, and downtime. The specific workflow for cell handover is as follows:

[0224] 1. The terminal sends the Layer 3 measurement results to the serving cell, and the serving cell prepares for LTM configuration.

[0225] 2. The serving cell sends a Radio Resource Control (RRC) reconfiguration message containing the LTM candidate cell configuration to the terminal.

[0226] 3. The terminal stores the LTM candidate cell configuration and sends an RRCReconfigurationComplete message to the next generation Node B (gNB) of the serving cell.

[0227] 4. Perform either 4a or 4b below, then proceed to 5:

[0228] 4a. Before receiving a cell handover command, the terminal performs downlink synchronization with the LTM candidate cell. The terminal may activate or deactivate the Transmission Configuration Indication (TCI) state of the LTM candidate cell.

[0229] 4b. Before receiving the cell handover command, the terminal performs uplink synchronization with the LTM candidate cell to obtain the timing advance (TA) of the candidate cell. The TA is estimated using UE-based TA measurement (if configured) or by sending a preamble to the candidate cell to achieve contention-free random access (CFRA). This CFRA is accomplished by the serving cell sending a Physical Downlink Control Channel (PDCCH) order.

[0230] 5. The terminal performs L1 measurement on the configured LTM candidate cells and reports the measurement results.

[0231] 6. The base station decides to perform a cell handover to the target cell. The base station sends an LTM Cell Handover Media Access Control (MAC) control element (CE) to the terminal to trigger the handover. This MAC CE contains the target cell identifier (ID), a beamforming TCI state, and the target cell's TA value (if present). The terminal switches to the target cell and uses it.

[0232] 7. If the cell handover command does not contain a valid TA value, the terminal will perform a random access procedure with the target cell.

[0233] 8. The terminal sends an RRCReconfigurationComplete message to the target cell to complete the LTM cell handover process. If the terminal performed a random access operation in step 7, the terminal considers the LTM cell handover operation to be successfully completed when the random access is successfully completed. For RACH-less LTM, the terminal considers the LTM cell handover to be successful when the network successfully receives its first uplink data (which is an RRCReconfigurationComplete message).

[0234] Specifically, in the current cell handover process, when a terminal receives a cell handover signaling message from the serving cell, it disconnects from the serving cell and switches to the target cell. For the target cell, after receiving a reconfiguration completion message from the terminal, it begins scheduling data transmission. However, since the target cell does not have the channel state information corresponding to this terminal at this time, it can only use the lowest MCS (Modulation and Coding Scheme) level for data scheduling, leading to a decrease in transmission performance. Subsequently, the serving cell will perform CSI (Channel State Information) acquisition to obtain the terminal's current channel state information and then use an MCS level matching the channel for data scheduling. Therefore, the current scheme suffers from a problem where the target cell cannot obtain the terminal's current channel state information in a timely manner, resulting in a decrease in data transmission performance.

[0235] Based on the above, this disclosure provides an information transmission method, apparatus, device, and non-transient readable storage medium to solve the problem in related technologies that cannot support and guarantee data transmission performance under cell handover schemes. The method, apparatus, device, and non-transient readable storage medium are based on the same application concept. Since the principles by which the method, apparatus, device, and non-transient readable storage medium solve the problem are similar, their implementations can be referred to interchangeably, and repeated details will not be repeated.

[0236] The information transmission method provided in this disclosure embodiment, applied to a terminal, as shown in FIG2, includes:

[0237] Step 21: Receive a first signaling sent by the network device; the first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0238] Step 22: Send CSI to the network device.

[0239] The first signaling may include at least one of the signaling in the LTM process, such as TCI state activation signaling, cell handover signaling, and Random Access Channel (RACH) signaling during cell handover; and / or, the CSI sent to the network device may include: the terminal measuring the channel state information of the Reference Signal (CSI-RS) resources that meet certain conditions; and / or, the CSI sent to the network device may be implemented through uplink channels such as RACH resources, pre-configured target cell uplink resources, or dynamically allocated target cell uplink resources; and / or, the CSI sent to the network device may include: reporting the CSI to the serving cell or the target cell, but is not limited to this.

[0240] Additionally, step 22 may include, but is not limited to, sending a CSI to the network device according to the first signaling.

[0241] The information transmission method provided in this embodiment receives a first signaling sent by a network device. The first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; sending the CSI to the network device. This method enables the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, supporting the target cell to obtain the terminal's channel state information. This ensures the data transmission performance of the terminal after cell handover without reducing cell handover latency, effectively solving the problem in related technologies where the data transmission performance of cell handover schemes cannot be guaranteed.

[0242] The first signaling includes at least one of the following: a Media Access Control (MAC-CE) signaling element for activating the Transmission Configuration Indicator (TCI) state of a candidate cell; a Downlink Control Information (DCI) signaling sent by the serving cell of the terminal; a MAC-CE signaling indicating cell handover; a random access response sent by the target cell of the terminal (specifically, a random access response during the random access process sent by the target cell of the terminal); a DCI sent by the target cell of the terminal for scheduling random access response resources (specifically, a DCI during the random access process sent by the target cell of the terminal); and a DCI sent by the target cell of the terminal for scheduling contention resolution resources (specifically, a DCI during the random access process sent by the target cell of the terminal). This allows for multiple implementations of the first signaling.

[0243] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell. This allows for the reporting of CSI-related content in various situations to network devices.

[0244] The first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-plus-Noise Ratio (L1-SINR) in the LTM reporting by the terminal; the LTM represents Layer 1 and / or Layer 2 triggered mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; and (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling. This allows for the determination of the relevant content of the CSI reporting based on multiple methods.

[0245] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, wherein the information indication includes at least one of: time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index. This allows the network side to instruct the terminal on the resources used for CSI reporting.

[0246] Sending CSI to the network device includes: sending CSI to the network device through a first resource; wherein the first resource includes at least one of the following: a Physical Uplink Shared Channel (PUSCH) resource for carrying Radio Resource Control (RRC) requests sent to the target cell (specifically, a PUSCH resource for carrying RRC requests during random access procedures sent to the target cell); a Configuration Grant Physical Uplink Shared Channel (CG-PUSCH) resource pre-configured by the candidate cell; a PUSCH resource dynamically allocated by the candidate cell for carrying first uplink data; and the channel resource for the CSI indicated by the first signaling. This supports multiple methods for CSI reporting.

[0247] In this embodiment of the disclosure, the first uplink data can be the data of a reconfiguration completion message. This clarifies one specific implementation method of the first uplink data.

[0248] The first signaling includes CSI reporting configuration information, which includes at least one of a CSI trigger status index and a CSI reporting configuration index. This allows for explicit configuration of CSI reporting.

[0249] In this embodiment of the disclosure, sending CSI to the network device includes: sending CSI to the network device after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling. This clarifies a timing relationship for CSI reporting. Sending CSI to the network device after the first delay may include: sending CSI to the network device after the first delay according to the first signaling, but is not limited to this. In this solution, it can also be that the first duration is predefined by the system, configured through RRC signaling, or indicated by the first signaling, which is not limited here.

[0250] The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource. This clarifies another timing relationship in CSI reporting.

[0251] This disclosure also provides an information transmission method applied to a network device, as shown in FIG3, including:

[0252] Step 31: Send a first signaling to the terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal;

[0253] Step 32: Receive the CSI sent by the terminal.

[0254] The information transmission method provided in this embodiment sends a first signaling to a terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; and the terminal receives the CSI sent by the terminal; it can support the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, and support the target cell to obtain the terminal's channel state information, thereby ensuring the data transmission performance of the terminal after cell handover without reducing the cell handover latency, and effectively solving the problem in related technologies that cannot support the data transmission performance of cell handover schemes.

[0255] The first signaling includes at least one of the following: MAC-CE signaling for activating the TCI state of the candidate cell; DCI signaling sent by the serving cell of the terminal; MAC-CE signaling for indicating cell handover; random access response sent by the target cell of the terminal (specifically, for example, a random access response during the random access procedure sent by the target cell of the terminal); DCI sent by the target cell of the terminal for scheduling random access response resources (specifically, a DCI during the random access procedure sent by the target cell of the terminal); and DCI sent by the target cell of the terminal for scheduling contention resolution resources (specifically, a DCI during the random access procedure sent by the target cell of the terminal). This allows for multiple implementations of the first signaling.

[0256] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell. This allows for the reporting of CSI-related content in various situations to network devices.

[0257] The first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to L1-RSRP and / or L1-SINR in the LTM reporting by the terminal; the LTM indicates layer 1 and / or layer 2 triggering mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; and (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling. This allows for the determination of the relevant content of CSI reporting based on multiple methods.

[0258] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, wherein the information indication includes at least one of: time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index. This allows the network side to instruct the terminal on the resources used for CSI reporting.

[0259] The receiving of the CSI sent by the terminal includes: receiving the CSI sent by the terminal through a first resource; wherein the first resource includes at least one of the following: a Physical Uplink Shared Channel (PUSCH) resource for carrying Radio Resource Control (RRC) requests sent to the target cell (specifically, a PUSCH resource for carrying RRC requests during random access procedures sent to the target cell); a CG-PUSCH resource pre-configured by the candidate cell; a PUSCH resource dynamically allocated by the candidate cell for carrying first uplink data; and the channel resource of the CSI indicated by the first signaling. This supports multiple methods for CSI reporting.

[0260] In this embodiment of the disclosure, the first uplink data can be the data of a reconfiguration completion message. This clarifies one specific implementation method of the first uplink data.

[0261] The first signaling includes CSI reporting configuration information, which includes at least one of a CSI trigger status index and a CSI reporting configuration index. This allows for explicit configuration of CSI reporting.

[0262] In this embodiment of the disclosure, receiving the CSI sent by the terminal includes: receiving the CSI sent by the terminal after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling. This clarifies a timing relationship for CSI reporting. Receiving the CSI sent by the terminal after the first delay may include: receiving the CSI sent by the terminal according to the first signaling after the first delay, but is not limited to this.

[0263] The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource. This clarifies another timing relationship in CSI reporting.

[0264] It should be noted that the relevant content on the terminal side and the network device side mentioned above can be referred to each other, and the repeated parts will not be repeated.

[0265] The information transmission method provided in the embodiments of this disclosure will be illustrated by examples below.

[0266] To address the aforementioned technical problems, this disclosure provides an information transmission method, specifically a method for reporting Channel State Information (CSI), such as a CSI reporting method during cell handover. This method mainly involves: the network side using signaling from the LTM process during cell handover, such as TCI state activation signaling, cell handover signaling, and RACH signaling (corresponding to the aforementioned first signaling), to trigger the terminal to measure the channel state information of reference signal (CSI-RS) resources that meet certain conditions. The terminal can then report the channel state information to the serving cell (which can then be forwarded to the target cell) or the target cell (corresponding to the terminal sending CSI to the network device) through uplink channels such as RACH resources, pre-configured target cell uplink resources, or dynamically allocated target cell uplink resources (corresponding to the aforementioned first resources). Thus, this solution enables the terminal to obtain the channel state information of at least one cell in advance and directly or indirectly notify the target cell, thereby ensuring data transmission performance after cell handover. Specifically, this solution includes the following:

[0267] Terminal side:

[0268] (1) The terminal receives a first signaling sent by the network side and feeds back a first result (i.e., channel state information) to the network side; the first signaling is used to trigger the terminal to feed back the first result to the network side, to trigger the measurement of the reference signal, and to trigger the transmission of the reference signal (to trigger the transmission of the reference signal by the network side, and the UE receives the signal) or one or more of the following: corresponding to receiving the first signaling sent by the network device; the first signaling is used to trigger at least one of the following operations: feeding back channel state information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; sending the CSI to the network device.

[0269] (2) The first signaling mentioned in (1) (also known as CSI reporting or CSI-RS measurement triggering signaling) may include one or more of the following signaling:

[0270] 1) MAC-CE signaling used to activate the TCI state of candidate cells;

[0271] 2) Downlink Control Information (DCI) signaling sent by the serving cell of the terminal;

[0272] 3) Cell handover MAC-CE signaling; corresponding to the MAC-CE signaling used to indicate cell handover as described above;

[0273] 4) Message 2 (i.e., random access response) sent by the target cell of the terminal during the random access process; corresponding to the random access response sent by the target cell of the terminal above.

[0274] 5) The DCI used to schedule message 2 resources in the random access procedure sent by the target cell; corresponding to the DCI used to schedule random access response resources in the random access procedure sent by the target cell of the aforementioned terminal.

[0275] 6) The DCI used for scheduling message 4 (i.e. contention resolution) resources in the random access procedure sent by the target cell; corresponding to the DCI used for scheduling contention resolution resources in the random access procedure sent by the target cell of the aforementioned terminal.

[0276] (3) The first result mentioned in (1) includes measurement results of one or more cells, each cell (measurement result) containing measurement results of one or more reference signal resources; the cell may be a target cell or a candidate cell; corresponding to the above CSI including: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell. The cell and reference signal resource (corresponding to the CSI reporting content) may be determined by one or more of the following methods (corresponding to the above first cell and / or the reference signal resource being determined based on at least one of the following information):

[0277] 1) The terminal performs resource indexing for the Layer 1 Reference Signal Receive Power (L1-RSRP) and / or L1-SINR (L1-Signal-to-Interference plus Noise Ratio) reported in LTM;

[0278] 2) The target cell and / or TCI status indicated in the cell handover signaling;

[0279] 3) TCI status of one or more cells activated by MAC-CE signaling; corresponding to the TCI status of at least one cell activated by the above MAC-CE signaling;

[0280] 4) The candidate cell ID and / or reference signal resource index indicated by the first signaling as described in (1); corresponding to the candidate cell identifier and / or reference signal resource index indicated by the first signaling as described above.

[0281] (4) The first signaling in (1) includes a channel resource information indication carrying the first result; the channel resource information includes one or more of time domain resources (information), frequency domain resources (information), TCI information, and uplink channel resource index; corresponding to the first signaling, it includes: information indication of channel resources for carrying the CSI, the information indication including: at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0282] (5) The first signaling in (1) includes a CSI reporting configuration information indication; the CSI reporting configuration information indication includes at least one of a CSI trigger status index and a CSI reporting configuration index; corresponding to the first signaling mentioned above including: CSI reporting configuration information, the CSI reporting configuration information includes at least one of a CSI trigger status index and a CSI reporting configuration index.

[0283] (6) The first result described in (1) can be carried by one or more of the following methods (which can be understood as the carrier of the CSI reporting content can be at least one of the following); corresponding to the above-mentioned sending CSI to the network device through the first resource, the first resource includes at least one of the following:

[0284] 1) PUSCH (Physical Uplink Shared Channel) resources that carry message 3 (i.e. RRC request) in the random access procedure sent to the target cell; corresponding to the physical uplink shared channel PUSCH resources used to carry the radio resource control RRC request in the random access procedure sent to the target cell.

[0285] 2) Pre-configured grant (CG) - PUSCH resources for candidate cells;

[0286] 3) PUSCH resources dynamically allocated by candidate cells to carry the first uplink data (such as reconfiguration completion messages);

[0287] 4) The channel resources indicated in (4); the channel resources corresponding to the CSI indicated by the first signaling above.

[0288] (7) The first result mentioned in (1) can be reported after the terminal receives the first signaling and after a feedback delay X; the feedback delay X can be predefined by the system, configured by the system through RRC signaling, or indicated by the first signaling; corresponding to sending CSI to the network device after the first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0289] (8) The first result mentioned in (1) can be fed back simultaneously with the first uplink data sent by the terminal to the target cell, for example, mapped and sent on a PUSCH resource; corresponding to the above CSI and the first uplink data sent by the terminal to the target cell being mapped and sent on the same PUSCH resource.

[0290] The above (7) and (8) can be understood as restrictions on the timing relationship of CSI reporting, but are not limited thereto.

[0291] Base station side (corresponding to the network equipment mentioned above):

[0292] (1) The network side sends a first signaling and receives a first result (i.e., channel state information) fed back by the terminal; the first signaling is used to trigger the terminal to feed back the first result to the network side, to trigger the measurement of the reference signal, and to trigger the transmission of the reference signal (to trigger the transmission of the reference signal by the network side, and the UE receives the signal) or one or more of the following: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; and the terminal receives the CSI sent by the terminal.

[0293] (2) The first signaling described in (1) may include one or more of the following signaling:

[0294] 1) MAC-CE signaling used to activate the TCI state of candidate cells;

[0295] 2) DCI signaling sent by the serving cell of the terminal;

[0296] 3) Cell handover MAC-CE signaling; corresponding to the MAC-CE signaling used to indicate cell handover as described above;

[0297] 4) Message 2 (i.e., random access response) sent by the target cell of the terminal during the random access process; corresponding to the random access response sent by the target cell of the terminal above.

[0298] 5) The DCI used to schedule message 2 resources in the random access procedure sent by the target cell; corresponding to the DCI used to schedule random access response resources in the random access procedure sent by the target cell of the aforementioned terminal.

[0299] 6) The DCI used for scheduling message 4 (i.e. contention resolution) resources in the random access procedure sent by the target cell; corresponding to the DCI used for scheduling contention resolution resources in the random access procedure sent by the target cell of the aforementioned terminal.

[0300] (3) The first result mentioned in (1) includes measurement results of one or more cells, each cell (measurement result) containing measurement results of one or more reference signal resources; the cell may be a target cell or a candidate cell; corresponding to the above CSI including: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell. The cell and reference signal resource are determined by one or more of the following methods (corresponding to the above first cell and / or the reference signal resource being determined based on at least one of the following information):

[0301] 1) The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting;

[0302] 2) The target cell and / or TCI status indicated in the cell handover signaling;

[0303] 3) TCI status of one or more cells activated by MAC-CE signaling; corresponding to the TCI status of at least one cell activated by the above MAC-CE signaling;

[0304] 4) The candidate cell ID and / or reference signal resource index indicated by the first signaling as described in (1); corresponding to the candidate cell identifier and / or reference signal resource index indicated by the first signaling as described above.

[0305] (4) The first signaling in (1) includes a channel resource information indication carrying the first result; the channel resource information includes one or more of time domain resources (information), frequency domain resources (information), TCI information, and uplink channel resource index; corresponding to the first signaling, it includes: information indication of channel resources for carrying the CSI, the information indication including: at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0306] (5) The first signaling in (1) includes a CSI reporting configuration information indication; the CSI reporting configuration information indication includes at least one of a CSI trigger status index and a CSI reporting configuration index; corresponding to the first signaling mentioned above including: CSI reporting configuration information, the CSI reporting configuration information includes at least one of a CSI trigger status index and a CSI reporting configuration index.

[0307] (6) The first result described in (1) can be carried by one or more of the following methods (corresponding to the CSI sent by the terminal receiving the above through the first resource; the first resource includes at least one of the following):

[0308] 1) PUSCH resources carrying message 3 (i.e. RRC request) in the random access procedure sent to the target cell; corresponding to the physical uplink shared channel PUSCH resources used to carry the radio resource control RRC request in the random access procedure sent to the target cell.

[0309] 2) Pre-configured CG-PUSCH resources for candidate cells;

[0310] 3) PUSCH resources dynamically allocated by candidate cells to carry the first uplink data (such as reconfiguration completion messages);

[0311] 4) The channel resources indicated in (4); the channel resources corresponding to the CSI indicated by the first signaling above.

[0312] (7) The first result mentioned in (1) can be reported after the terminal receives the first signaling and after a feedback delay X; the feedback delay X can be predefined by the system, configured by the system through RRC signaling, or indicated by the first signaling; corresponding to the above-mentioned receiving of the CSI sent by the terminal after the first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0313] (8) The first result mentioned in (1) can be fed back simultaneously with the first uplink data sent by the terminal to the target cell, for example, mapped and sent on a PUSCH resource; corresponding to the above CSI and the first uplink data sent by the terminal to the target cell being mapped and sent on the same PUSCH resource.

[0314] In this scheme, when the network side is implemented as the serving cell, it may also include the serving cell sending measurement information to the target cell to ensure that the target cell knows the channel state information, and / or, in this scheme, the target cell and the serving cell may belong to different base stations, but are not limited to this.

[0315] The above (7) and (8) can be understood as restrictions on the timing relationship of CSI reporting, but are not limited thereto.

[0316] The following is a specific example of this solution.

[0317] Example 1:

[0318] The base station configures N CSI trigger states for the terminal. As shown in Figure 4 (CSI reporting configuration), each CSI trigger state can be implemented using the following methods:

[0319] (1) In one embodiment, each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set includes one or more CSI-RS resources of a candidate cell, and the CSI-RS resources are used for CSI measurement.

[0320] (2) In one embodiment, each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set includes CSI-RS resources for multiple candidate cells, and the CSI-RS resources are used for CSI measurements.

[0321] (3) In one embodiment, each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes multiple CSI resource sets. Each CSI resource set includes one or more CSI-RS resources for a candidate cell, and the CSI-RS resources are used for CSI measurements.

[0322] (4) In another implementation, each CSI trigger state is associated with multiple CSI reporting configurations. Each CSI reporting configuration corresponds to a candidate cell. Each CSI reporting configuration contains a CSI resource set, which contains one or more CSI-RS resources of a candidate cell, the CSI-RS resources being used for CSI measurements.

[0323] The CSI reporting configuration may also include at least one of the following: feedback information (such as CSI-RS Resource Indicator (CRI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), Channel Quality Indicator (CQI), etc.), frequency domain feedback information (such as wideband feedback, subband feedback, etc.), and codebook information.

[0324] The base station sends a CSI trigger signaling message to the terminal, which is used to trigger one of N CSI trigger states. The signaling message may include a time-frequency domain resource indication for measurement result reporting, and may also include TCI status information corresponding to the time-frequency domain resource for measurement result reporting. The CSI trigger signaling message can be a DCI signaling message or a MAC-CE signaling message.

[0325] After receiving the CSI trigger signaling, the terminal can perform the following measurements and report the measurement results to the current serving cell via the time-frequency domain resources indicated in the trigger signaling. Specifically, the measurements performed by the terminal may include:

[0326] (1) In one embodiment, the terminal measures the measurement resources in the set of all CSI resources in the CSI reporting configuration associated with this CSI trigger state; and feeds back the channel state information corresponding to all measurement resources, wherein the channel state information can be determined according to the feedback amount information in the CSI reporting configuration.

[0327] (2) In another implementation, the base station can indicate measurement constraint information, and the terminal only needs to feed back the channel state information corresponding to the measurement resource indicated in the measurement constraint information. This measurement constraint information may include at least one of the following: candidate cell ID, measurement resource ID, TCI state information, etc. The measurement constraint information may be included in the CSI triggering signaling, or it may be indicated by the base station through other signaling. For example, the base station activates the TCI state of M candidate cells through MAC-CE signaling; specifically, the base station sends MAC-CE signaling 1 to activate the 8 TCI states of candidate cell 2; and sends MAC-CE signaling 2 to activate the 4 TCI states of candidate cell 5. After receiving the two MAC-CE signaling messages, the terminal only measures the CSI-RS of the corresponding cell that is configured with the corresponding TCI state, calculates the corresponding channel state information, and feeds it back. For example, the terminal measures the 8 CSI-RS resources of candidate cell 2. Each CSI-RS resource is configured with one of the 8 active TCI states. The terminal calculates RI, PMI, and CQI information for each CSI-RS resource. Similarly, the terminal measures the 4 CSI-RS resources of candidate cell 5 and calculates RI, PMI, and CQI information respectively.

[0328] (3) In another implementation, the terminal determines the measurement resources that need to be fed back based on the previously reported beam measurement results and feeds back the corresponding channel state information. The beam measurement results can be the L1-RSRP measurement results. For example, after receiving the CSI trigger signaling, the terminal determines that the following were recently reported: L1-RSRP of SSB_index3 of candidate cell 1 and L1-RSRP of SSB_index5 of candidate cell 3; then the terminal measures the CSI-RS resources used for CSI calculation that have a QCL (Quasi Co-Location) relationship with SSB_index3 in candidate cell 1, and the CSI-RS resources used for CSI calculation that have a QCL relationship with SSB_index5 in candidate cell 3, to obtain the corresponding PMI, RI, and CQI for reporting.

[0329] Example 2:

[0330] The base station configures N CSI trigger states for the terminal. Each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set contains multiple CSI-RS resources of a candidate cell, and the CSI-RS resources are used for CSI measurement.

[0331] The base station activates the TCI states of M candidate cells via MAC-CE signaling. For example, the base station sends MAC-CE signaling 1 to activate 8 TCI states of candidate cell 2; and sends MAC-CE signaling 2 to activate 4 TCI states of candidate cell 5. Simultaneously, each MAC-CE signaling activates either a CSI reporting configuration or a CSI triggering state of the corresponding candidate cell. After receiving the MAC-CE signaling, the terminal measures the CSI-RS resources according to the corresponding CSI reporting configuration and calculates the corresponding channel state information, such as CRI, PMI, CQI, and RI. If the CSI-RS resources are aperiodic, the MAC-CE signaling can also be used to trigger the transmission of CSI-RS resources. In one embodiment, the terminal only measures the CSI-RS resources associated with the activated TCI states of each candidate cell. For example, for candidate cell 2, only the CSI-RS resources associated with the 8 TCI states are measured. The association (i.e., "associated with TCI states") includes the same TCI state configuration or a QCL relationship.

[0332] Afterwards, the terminal reports the channel state information to the network side. The reporting operation can be implemented in the following ways:

[0333] (1) In one embodiment, the MAC-CE signaling includes a time-frequency resource indication of the uplink channel of the corresponding candidate cell. The channel state information is reported on the uplink resources indicated by the MAC-CE.

[0334] (2) In another embodiment, the MAC-CE signaling includes an uplink channel resource indication. Here, the uplink channel resource indication is the CG-PUSCH resource index indication for the corresponding cell. After receiving the MAC-CE signaling, the terminal reports the channel state information on the uplink resources indicated by the MAC-CE after a reporting time offset X (corresponding to the aforementioned feedback delay X). The reporting time offset X can be predefined by the system, configured by the system through RRC signaling, or indicated by the MAC-CE signaling.

[0335] (3) In another implementation, the base station sends a cell handover MAC-CE signaling to the terminal. This signaling includes the target cell and the corresponding TCI status information. This TCI status information is one of the previously activated TCI status information. Therefore, the terminal has already obtained the corresponding channel state information. After receiving the cell handover MAC-CE signaling, the terminal, after a reporting time offset X, reports the channel state information of the target cell and the CSI-RS resource corresponding to the target TCI status through the pre-configured target cell CG-PUSCH resource. The reporting time offset X can be predefined by the system, configured by the system through RRC signaling, or indicated by the cell handover MAC-CE signaling.

[0336] Example 3:

[0337] The base station configures N CSI trigger states for the terminal. Each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set contains multiple CSI-RS resources of a candidate cell, and the CSI-RS resources are used for CSI measurement.

[0338] The base station sends cell handover signaling to the terminal. This handover signaling includes the target cell to be handed over and its corresponding TCI status information. Simultaneously, the handover signaling also includes RACH-related information, such as a preamble index (used to determine the preamble used in the RACH process) and an SSB index (used to determine the RACH timing).

[0339] The terminal sends a Preamble (message 1) to the target cell based on the indication in the cell handover signaling. Then, it receives the DCI sent by the target cell within a time window. The DCI is used to schedule the transmission of the Random Access Response (RAR) (message 2), where RAR stands for Random Access Response. After receiving the DCI, the terminal can implement the following methods:

[0340] (1) In one embodiment, the DCI triggers a CSI trigger state corresponding to the target cell. One method is that the DCI contains the CSI trigger state ID. According to system conventions, or the CSI-RS resource index contained in the DCI, the terminal begins to measure the CSI-RS resources in the CSI resource set corresponding to the TCI state information indicated by the cell handover signaling, and obtains at least one of the following information: CRI, PMI, RI, CQI, etc., according to the configuration of the feedback quantity. The terminal reports the channel state information in the subsequent random access procedure message 3. Further, if the CSI-RS resources in the CSI resource set are aperiodic, the DCI can also be used to trigger the transmission of CSI-RS resources.

[0341] (2) In another implementation, as shown in Figure 5, after receiving the DCI (corresponding to the cell handover command in the figure), the terminal obtains a random access response (message 2) based on its scheduling information (corresponding to DCI format 1_0 (RA-RNTI scrambling) in the figure); message 2 is used to trigger the CSI trigger state corresponding to the target cell (corresponding to RAR (message 2) + CSI trigger in the figure). One approach is that message 2 contains the CSI trigger state ID. According to the system convention, or the CSI-RS resource index contained in message 2, the terminal starts measuring the CSI-RS resources in the CSI resource set corresponding to the TCI status information indicated by the cell handover signaling, and obtains at least one of the information such as CRI, PMI, RI, and CQI according to the configuration of the feedback quantity. The terminal reports the channel state information in the subsequent random access process message 3 (corresponding to RRC request (message 3) + CSI reporting in the figure). Furthermore, if the CSI-RS resources in the CSI resource set are aperiodic, message 2 can also be used to trigger the transmission of CSI-RS resources. In the diagram, RA-RNTI stands for Random Access-Radio Network Temporary Identifier, and TC-RNTI stands for Temporary-Cell Radio Network Temporary Identifier. Furthermore, the following are related to the diagram: "Preamble (Message 1); DCI Format 1_0 (TC-RNTI scrambling); Contention Resolution (Message 4); Physical Downlink Control Channel (used for scheduling of dynamically licensed physical uplink shared channels); First Uplink Data," which can be found in the relevant existing content and will not be elaborated upon here.

[0342] Example 4:

[0343] The base station configures N CSI trigger states for the terminal. Each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set contains multiple CSI-RS resources of a candidate cell, and the CSI-RS resources are used for CSI measurement.

[0344] The base station sends cell handover signaling to the terminal, which may include the target cell to be handed over and the corresponding TCI status information. The base station also sends DCI signaling to the terminal, which can be used to indicate uplink PUSCH resources to the terminal. These PUSCH resources are used by the terminal to send first uplink data. The first uplink data may be an RRC reconfiguration completion message. The DCI signaling can also be used to trigger a CSI trigger state corresponding to the target cell; one method is that the DCI contains the CSI trigger state ID. According to system conventions, or (according to) the CSI-RS resource index contained in the DCI, the terminal begins measuring the CSI-RS resources in the CSI resource set corresponding to the TCI status information indicated by the cell handover signaling, and obtains at least one of the following information: CRI, PMI, RI, CQI, etc., according to the configuration of the feedback quantity. Furthermore, if the CSI-RS resources in the CSI resource set are aperiodic, the DCI can also be used to trigger the transmission of CSI-RS resources. The terminal can report channel state information on the PUSCH resources scheduled by this DCI, i.e., channel state information and the first uplink data are reported simultaneously.

[0345] Example 5:

[0346] The base station configures N CSI trigger states for the terminal. Each CSI trigger state is associated with one CSI reporting configuration. The CSI reporting configuration includes one CSI resource set. This CSI resource set contains multiple CSI-RS resources for one candidate cell, and these CSI-RS resources are used for CSI measurements. The base station configures CG-PUSCH resources for each candidate cell for the terminal, which can be used by the terminal to send the first uplink data.

[0347] The base station sends a cell handover MAC-CE signaling message to the terminal. The handover signaling message may include the target cell to be handed over and the corresponding TCI status information. (1) In one embodiment, the MAC-CE signaling message may also include CSI trigger status indication information, which is used to indicate one of N CSI trigger statuses; the CSI trigger status indication information may correspond to the CSI trigger status of the target cell. In one embodiment, the handover signaling message may also include CSI-RS resource ID information to be measured, and the CSI-RS resource is associated with the TCI status information indicated in the cell handover signaling message; the association may include the same TCI status configuration or have a QCL relationship. After receiving the handover signaling message, the terminal starts measuring the CSI-RS resource corresponding to the CSI trigger status. (2) In another embodiment, if the cell handover MAC-CE signaling message does not include CSI trigger status indication information, the CSI trigger status where the CSI reporting configuration corresponding to the target cell is located can be activated by default. In some embodiments, the handover signaling may also include CSI-RS resource ID information to be measured, wherein the CSI-RS resource is associated with the TCI status information indicated in the cell handover signaling; the association may include the same TCI status configuration or have a QCL relationship. After receiving the handover signaling, the terminal begins to measure the CSI-RS resource corresponding to the CSI trigger state.

[0348] Furthermore, if the CSI-RS resources in the CSI-RS resource set are aperiodic, the cell handover signaling can also be used to trigger the transmission of CSI-RS resources. The terminal determines and measures at least one of the channel state information such as CRI, RI, PMI, and CQI according to the feedback quantity indication in the CSI reporting configuration. The reporting of the channel state information can be implemented using the following methods:

[0349] (1) In one embodiment, the cell handover signaling may further include CSI reporting time offset information (corresponding to the feedback delay X mentioned above). For example, the reporting time offset is X symbols. The terminal reports the channel state information on the first valid CG-PUSCH resource after receiving X symbols of the cell handover signaling. The value of X can be determined according to the terminal's capabilities.

[0350] (2) In another implementation, the system stipulates a CSI reporting time offset. For example, based on the terminal's capabilities, the system predefines a corresponding CSI reporting time offset; specifically, the reporting time offset is X symbols. The terminal reports the channel state information on the first valid CG-PUSCH resource after receiving X symbols of cell handover signaling.

[0351] (3) In another implementation, the system stipulates that the reporting of channel state information is sent simultaneously with the transmission of the first uplink data (e.g., an RRC reconfiguration completion message). The terminal can report the aforementioned channel state information at the same time as reporting the RRC reconfiguration completion message.

[0352] (4) In another embodiment, the cell handover signaling may also include a time-frequency resource indication or an uplink channel resource indication for the target cell, and the terminal shall report accordingly.

[0353] In this embodiment, the CG-PUSCH resource used for channel state information reporting can be determined by the terminal based on the TCI status indicated in the cell handover signaling, or it can be indicated by the cell handover signaling. Additionally, the uplink channel (i.e., the target cell uplink channel in (4)) can be used by the terminal to feed back channel state information.

[0354] It should be noted that the relevant content of the above embodiments can be referred to each other, and the repeated parts will not be described again.

[0355] Therefore, this disclosure provides a CSI reporting method during cell handover, which can trigger the terminal to measure channel state information by using signaling such as TCI state activation signaling, cell handover signaling, and RACH signaling during cell handover; and report the channel state information to the serving cell or the target cell through resources such as RACH resources, pre-configured target cell uplink resources, or dynamically allocated target cell uplink resources; thereby enabling the target cell to obtain the terminal's channel state information during cell handover, thus ensuring the data transmission performance of the terminal after cell handover without reducing cell handover latency.

[0356] This disclosure also provides an information transmission device, which is a terminal, as shown in FIG6, including a memory 61, a transceiver 62, and a processor 63.

[0357] Memory 61 is used to store computer programs; transceiver 62 is used to send and receive data under the control of processor 63; processor 63 is used to read the computer programs in memory 61 and perform the following operations:

[0358] The transceiver 62 receives a first signaling sent by a network device; the first signaling is used to trigger at least one of the following operations: feeding back channel state information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0359] The transceiver 62 sends the CSI to the network device.

[0360] The information transmission device provided in this embodiment receives a first signaling sent by a network device. The first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; sending the CSI to the network device. This enables the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, supporting the target cell to obtain the terminal's channel state information, thereby ensuring the data transmission performance of the terminal after cell handover without reducing the cell handover latency. This effectively solves the problem in related technologies that cannot support and guarantee the data transmission performance of cell handover schemes.

[0361] Specifically, transceiver 62 is used to receive and send data under the control of processor 63.

[0362] In Figure 6, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 63 and memory represented by memory 61. The bus architecture can 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. Transceiver 62 can be multiple components, including transmitters and receivers, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. For different user equipment, user interface 64 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0363] Processor 63 is responsible for managing the bus architecture and general processing, while memory 61 can store the data used by processor 63 when performing operations.

[0364] In some embodiments, the processor 63 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0365] The processor executes any of the methods described in the embodiments of this disclosure by invoking a computer program stored in memory, according to the obtained executable instructions. The processor and memory may also be physically separated.

[0366] The first signaling includes at least one of the following: a Media Access Control (MAC-CE) signaling element for activating the Transmission Configuration Indicator (TCI) state of a candidate cell; a Downlink Control Information (DCI) signaling sent by the serving cell of the terminal; a MAC-CE signaling for indicating cell handover; a Random Access Response (ROC) sent by the target cell of the terminal; a DCI sent by the target cell of the terminal for scheduling ROC resources; and a DCI sent by the target cell of the terminal for scheduling contention resolution resources.

[0367] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0368] Wherein, the first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to the Layer 1 Reference Signal Received Power L1-RSRP and / or Layer 1 Signal-to-Interference-plus-Noise Ratio L1-SINR in the LTM reporting of the terminal; the LTM represents Layer 1 and / or Layer 2 triggered mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling.

[0369] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0370] Sending CSI to the network device includes: sending CSI to the network device through a first resource; wherein the first resource includes at least one of the following: a Physical Uplink Shared Channel (PUSCH) resource for carrying a Radio Resource Control (RRC) request sent to a target cell; a Configuration Grant Physical Uplink Shared Channel (CG-PUSCH) resource pre-configured by a candidate cell; a PUSCH resource dynamically allocated by a candidate cell for carrying first uplink data; and the channel resource of the CSI indicated by the first signaling.

[0371] In this embodiment of the disclosure, the first uplink data is the data of the reconfiguration completion message.

[0372] The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0373] In this embodiment of the disclosure, sending CSI to the network device includes: sending CSI to the network device after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0374] The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0375] It should be noted that the device provided in this embodiment can implement all the method steps implemented in the above terminal-side method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0376] This disclosure also provides an information transmission device, which is a network device, as shown in FIG7, including a memory 71, a transceiver 72, and a processor 73.

[0377] Memory 71 is used to store computer programs; transceiver 72 is used to send and receive data under the control of processor 73; processor 73 is used to read the computer program in memory 71 and perform the following operations:

[0378] The transceiver 72 sends a first signaling to the terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0379] The transceiver 72 receives the CSI sent by the terminal.

[0380] The information transmission device provided in this embodiment sends a first signaling to a terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; and the device receives the CSI sent by the terminal; it can support the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, and support the target cell to obtain the channel state information of the terminal, thereby ensuring the data transmission performance of the terminal after cell handover without reducing the cell handover latency, and effectively solving the problem in related technologies that cannot support the data transmission performance of cell handover schemes.

[0381] Specifically, transceiver 72 is used to receive and send data under the control of processor 73.

[0382] In Figure 7, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 73 and memory represented by memory 71. 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 72 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 73 is responsible for managing the bus architecture and general processing, and memory 71 may store data used by processor 73 during operation.

[0383] The processor 73 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0384] The first signaling includes at least one of the following: MAC-CE signaling for activating the TCI state of the candidate cell; DCI signaling sent by the serving cell of the terminal; MAC-CE signaling for indicating cell handover; random access response sent by the target cell of the terminal; DCI sent by the target cell of the terminal for scheduling random access response resources; and DCI sent by the target cell of the terminal for scheduling contention resolution resources.

[0385] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0386] Wherein, the first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to L1-RSRP and / or L1-SINR in the LTM report performed by the terminal; the LTM indicates layer 1 and / or layer 2 triggering mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling.

[0387] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0388] The receipt of the CSI sent by the terminal includes: receiving the CSI sent by the terminal through a first resource; wherein the first resource includes at least one of the following: PUSCH resources for carrying RRC requests sent to the target cell; CG-PUSCH resources pre-configured by the candidate cell; PUSCH resources dynamically allocated by the candidate cell for carrying first uplink data; and channel resources of the CSI indicated by the first signaling.

[0389] In this embodiment of the disclosure, the first uplink data is the data of the reconfiguration completion message.

[0390] The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0391] In this embodiment of the disclosure, receiving the CSI sent by the terminal includes: receiving the CSI sent by the terminal after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0392] The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0393] It should be noted that the device provided in this embodiment can implement all the method steps implemented in the above network device side method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0394] This disclosure also provides an information transmission device applied to a terminal, as shown in FIG8, including:

[0395] The first receiving unit 81 is configured to receive a first signaling sent by a network device; the first signaling is configured to trigger at least one of the following operations: feeding back channel state information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal;

[0396] The first transmitting unit 82 is used to transmit CSI to the network device.

[0397] The information transmission device provided in this embodiment receives a first signaling sent by a network device. The first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; sending the CSI to the network device. This enables the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, supporting the target cell to obtain the terminal's channel state information, thereby ensuring the data transmission performance of the terminal after cell handover without reducing the cell handover latency. This effectively solves the problem in related technologies that cannot support and guarantee the data transmission performance of cell handover schemes.

[0398] The first signaling includes at least one of the following: a Media Access Control (MAC-CE) signaling element for activating the Transmission Configuration Indicator (TCI) state of a candidate cell; a Downlink Control Information (DCI) signaling sent by the serving cell of the terminal; a MAC-CE signaling for indicating cell handover; a Random Access Response (ROC) sent by the target cell of the terminal; a DCI sent by the target cell of the terminal for scheduling ROC resources; and a DCI sent by the target cell of the terminal for scheduling contention resolution resources.

[0399] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0400] Wherein, the first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to the Layer 1 Reference Signal Received Power L1-RSRP and / or Layer 1 Signal-to-Interference-plus-Noise Ratio L1-SINR in the LTM reporting of the terminal; the LTM represents Layer 1 and / or Layer 2 triggered mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling.

[0401] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0402] Sending CSI to the network device includes: sending CSI to the network device through a first resource; wherein the first resource includes at least one of the following: a Physical Uplink Shared Channel (PUSCH) resource for carrying a Radio Resource Control (RRC) request sent to a target cell; a Configuration Grant Physical Uplink Shared Channel (CG-PUSCH) resource pre-configured by a candidate cell; a PUSCH resource dynamically allocated by a candidate cell for carrying first uplink data; and the channel resource of the CSI indicated by the first signaling.

[0403] In this embodiment of the disclosure, the first uplink data is the data of the reconfiguration completion message.

[0404] The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0405] In this embodiment of the disclosure, sending CSI to the network device includes: sending CSI to the network device after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0406] The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

[0407] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above terminal-side method embodiment and achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0408] This disclosure also provides an information transmission device applied to a network device, as shown in FIG9, including:

[0409] The second sending unit 91 is used to send a first signaling to the terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

[0410] The second receiving unit 92 is used to receive the CSI sent by the terminal.

[0411] The information transmission device provided in this embodiment sends a first signaling to a terminal; the first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; and the device receives the CSI sent by the terminal; it can support the terminal to obtain the channel state information of at least one cell in advance during cell handover and notify the network device, and support the target cell to obtain the channel state information of the terminal, thereby ensuring the data transmission performance of the terminal after cell handover without reducing the cell handover latency, and effectively solving the problem in related technologies that cannot support the data transmission performance of cell handover schemes.

[0412] The first signaling includes at least one of the following: MAC-CE signaling for activating the TCI state of the candidate cell; DCI signaling sent by the serving cell of the terminal; MAC-CE signaling for indicating cell handover; random access response sent by the target cell of the terminal; DCI sent by the target cell of the terminal for scheduling random access response resources; and DCI sent by the target cell of the terminal for scheduling contention resolution resources.

[0413] In this embodiment of the disclosure, the CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

[0414] Wherein, the first cell and / or the reference signal resource are determined based on at least one of the following: (1) the resource index corresponding to L1-RSRP and / or L1-SINR in the LTM report performed by the terminal; the LTM indicates layer 1 and / or layer 2 triggering mobility; (2) the target cell and / or TCI status indicated in the cell handover signaling; (3) the TCI status of at least one cell activated by MAC-CE signaling; (4) the candidate cell identifier and / or reference signal resource index indicated by the first signaling.

[0415] In this embodiment of the disclosure, the first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time domain resource information, frequency domain resource information, TCI information, and uplink channel resource index.

[0416] The receipt of the CSI sent by the terminal includes: receiving the CSI sent by the terminal through a first resource; wherein the first resource includes at least one of the following: PUSCH resources for carrying RRC requests sent to the target cell; CG-PUSCH resources pre-configured by the candidate cell; PUSCH resources dynamically allocated by the candidate cell for carrying first uplink data; and channel resources of the CSI indicated by the first signaling.

[0417] In this embodiment of the disclosure, the first uplink data is the data of the reconfiguration completion message.

[0418] The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

[0419] In this embodiment of the disclosure, receiving the CSI sent by the terminal includes: receiving the CSI sent by the terminal after a first delay; wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

[0420] The CSI and the "first uplink data sent by the terminal to the target cell" are mapped to the same PUSCH resource.

[0421] It should be noted that the apparatus provided in this embodiment can implement all the method steps implemented in the above network device side method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0422] It should be noted that the division of units in the embodiments of this disclosure is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this disclosure can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0423] If the integrated unit is implemented as 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 this disclosure, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this disclosure. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0424] This disclosure also provides a non-transient readable storage medium storing a program for causing a processor to execute the aforementioned information transmission method on the terminal side or network device side.

[0425] The non-transiently readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., compact disc (CD), digital video disc (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD)), and semiconductor memory (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid state hard disk (SSD)).

[0426] The aforementioned implementation embodiments of the information transmission method on the terminal side or network device side are all applicable to the embodiments of the non-transiently readable storage medium and can achieve the same technical effect.

[0427] Those skilled in the art will understand that embodiments of this disclosure can be provided as methods, systems, or computer program products. Therefore, this disclosure can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this disclosure can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0428] This disclosure is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart illustrations and / or one or more block diagrams.

[0429] These processor-executable instructions may also be stored in a processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0430] These processor-executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0431] Furthermore, it should be noted that in the apparatus and method of this disclosure, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of this disclosure. Moreover, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of this disclosure can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof, which can be achieved by those skilled in the art using their basic programming skills after reading the description of this disclosure.

[0432] It should be noted that the above division of modules is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing element calls; they can be fully implemented in hardware; or some modules can be implemented by processing element calls to software, while others are implemented in hardware. For example, a module can be a separate processing element, or it can be integrated into a chip in the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its function can be called and executed by a processing element of the device. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0433] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0434] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, and both A and B, both B and C, both A and C, and A, B, and C. Similarly, the use of “at least one of A and B” in this specification and claims should be understood as “A alone, B alone, or both A and B.”

[0435] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. An information transmission method applied to a terminal, the method comprising: Receive the first signaling; The first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; Send CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

2. The information transmission method according to claim 1, wherein, The first signaling includes at least one of the following: Media Access Control (MAC-CE) signaling used to activate the Transmission Configuration Indicator (TCI) status of candidate cells; The terminal's serving cell sends downlink control information (DCI) signaling. MAC-CE signaling used to indicate cell handover; The terminal sends a random access response to the target cell; The DCI sent by the target cell of the terminal for scheduling random access response resources; The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

3. The information transmission method according to claim 1, wherein, The CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

4. The information transmission method according to claim 3, wherein, The first cell and / or the reference signal resources are determined based on at least one of the following: The terminal reports the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR) in LTM; LTM represents Layer 1 and / or Layer 2 triggered mobility. The target cell and / or TCI status indicated in the cell handover signaling; The TCI status of at least one cell activated by MAC-CE signaling; The first signaling indicates the candidate cell identifier and / or reference signal resource index.

5. The information transmission method according to claim 1, wherein, The first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

6. The information transmission method according to claim 1 or 5, wherein, Sending CSI to the network device includes: Send CSI to the network device via the first resource; The first resource includes at least one of the following: Physical uplink shared channel (PUSCH) resources used to carry Radio Resource Control (RRC) requests sent to the target cell; Candidate cells are pre-configured with authorized Physical Uplink Shared Channel (CG-PUSCH) resources; PUSCH resources dynamically allocated by candidate cells to carry the first uplink data; The first signaling indicates the channel resources of the CSI.

7. The information transmission method according to claim 6, wherein, The first uplink data is the data from the reconfiguration completion message.

8. The information transmission method according to claim 1, wherein, The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

9. The information transmission method according to claim 1, wherein, Sending CSI to the network device includes: Send CSI to the network device after the first time delay; Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

10. The information transmission method according to claim 1 or 7, wherein, The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

11. An information transmission method applied to a network device, the method comprising: Send the first signaling to the terminal; The first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; Receive the CSI sent by the terminal.

12. The information transmission method according to claim 11, wherein, The first signaling includes at least one of the following: MAC-CE signaling used to activate the TCI state of candidate cells; The DCI signaling sent by the serving cell of the terminal; MAC-CE signaling used to indicate cell handover; The terminal sends a random access response to the target cell; The DCI sent by the target cell of the terminal for scheduling random access response resources; The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

13. The information transmission method according to claim 11, wherein, The CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

14. The information transmission method according to claim 13, wherein, The first cell and / or the reference signal resources are determined based on at least one of the following: The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting; LTM indicates that mobility is triggered by Layer 1 and / or Layer 2. The target cell and / or TCI status indicated in the cell handover signaling; The TCI status of at least one cell activated by MAC-CE signaling; The first signaling indicates the candidate cell identifier and / or reference signal resource index.

15. The information transmission method according to claim 11, wherein, The first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

16. The information transmission method according to claim 11 or 15, wherein, Receiving the CSI sent by the terminal includes: Receive the CSI sent by the terminal through the first resource; The first resource includes at least one of the following: PUSCH resources used to carry RRC requests sent to the target cell; CG-PUSCH resources pre-configured for candidate cells; PUSCH resources dynamically allocated by candidate cells to carry the first uplink data; The first signaling indicates the channel resources of the CSI.

17. The information transmission method according to claim 16, wherein, The first uplink data is the data from the reconfiguration completion message.

18. The information transmission method according to claim 11, wherein, The first signaling includes: CSI reporting configuration information, which includes at least one of: CSI trigger status index and CSI reporting configuration index.

19. The information transmission method according to claim 11, wherein, Receiving the CSI sent by the terminal includes: Receive the CSI sent by the terminal after the first time delay; Wherein, the first delay refers to the first duration after the terminal receives the first signaling; the first delay is predefined by the system, configured through RRC signaling, or indicated by the first signaling.

20. The information transmission method according to claim 11 or 17, wherein, The CSI and the first uplink data sent by the terminal to the target cell are mapped to the same PUSCH resource.

21. An information transmission method applied to a network device, the method comprising: Send the first signaling to the terminal; The first signaling is used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

22. An information transmission method applied to a network device, the method comprising: The receiving terminal sends a CSI, which is sent to the network device when the terminal receives a first signaling, the first signaling being used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

23. An information transmission device, wherein the information transmission device is a terminal, and the information transmission device includes a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The transceiver receives a first signaling message; the first signaling message is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; The transceiver sends a CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

24. The information transmission device according to claim 23, wherein, The first signaling includes at least one of the following: Media Access Control (MAC-CE) signaling used to activate the Transmission Configuration Indicator (TCI) status of candidate cells; The terminal's serving cell sends downlink control information (DCI) signaling. MAC-CE signaling used to indicate cell handover; The terminal sends a random access response to the target cell; The DCI sent by the target cell of the terminal for scheduling random access response resources; The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

25. The information transmission device according to claim 23, wherein, The CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

26. The information transmission device according to claim 25, wherein, The first cell and / or the reference signal resources are determined based on at least one of the following: The terminal reports the resource index corresponding to the Layer 1 Reference Signal Received Power (L1-RSRP) and / or Layer 1 Signal-to-Interference-Noise Ratio (L1-SINR) in LTM; LTM represents Layer 1 and / or Layer 2 triggered mobility. The target cell and / or TCI status indicated in the cell handover signaling; The TCI status of at least one cell activated by MAC-CE signaling; The first signaling indicates the candidate cell identifier and / or reference signal resource index.

27. The information transmission device according to claim 23, wherein, The first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

28. The information transmission device according to claim 23 or 27, wherein, Sending CSI to the network device includes: Send CSI to the network device via the first resource; The first resource includes at least one of the following: Physical uplink shared channel (PUSCH) resources used to carry Radio Resource Control (RRC) requests sent to the target cell; Candidate cells are pre-configured with authorized Physical Uplink Shared Channel (CG-PUSCH) resources; PUSCH resources dynamically allocated by candidate cells to carry the first uplink data; The first signaling indicates the channel resources of the CSI.

29. An information transmission device, wherein the information transmission device is a network device, and the information transmission device includes a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The transceiver sends a first signaling message to the terminal; the first signaling message is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal. The transceiver receives the CSI sent by the terminal.

30. The information transmission device according to claim 29, wherein, The first signaling includes at least one of the following: MAC-CE signaling used to activate the TCI state of candidate cells; The DCI signaling sent by the serving cell of the terminal; MAC-CE signaling used to indicate cell handover; The terminal sends a random access response to the target cell; The DCI sent by the target cell of the terminal for scheduling random access response resources; The target cell of the terminal sends a DCI (Distributed Contention Message) for resolving resource contention during scheduling.

31. The information transmission device according to claim 29, wherein, The CSI includes: channel state measurement results of at least one first cell, the channel state measurement results including: measurement results for at least one reference signal resource; the first cell includes a target cell or a candidate cell.

32. The information transmission device according to claim 31, wherein, The first cell and / or the reference signal resources are determined based on at least one of the following: The terminal performs resource indexing corresponding to L1-RSRP and / or L1-SINR in LTM reporting; LTM indicates that mobility is triggered by Layer 1 and / or Layer 2. The target cell and / or TCI status indicated in the cell handover signaling; The TCI status of at least one cell activated by MAC-CE signaling; The first signaling indicates the candidate cell identifier and / or reference signal resource index.

33. The information transmission device according to claim 29, wherein, The first signaling includes: information indication of channel resources for carrying the CSI, the information indication including at least one of time-domain resource information, frequency-domain resource information, TCI information, and uplink channel resource index.

34. The information transmission device according to claim 29 or 33, wherein, Receiving the CSI sent by the terminal includes: Receive the CSI sent by the terminal through the first resource; The first resource includes at least one of the following: PUSCH resources used to carry RRC requests sent to the target cell; CG-PUSCH resources pre-configured for candidate cells; PUSCH resources dynamically allocated by candidate cells to carry the first uplink data; The first signaling indicates the channel resources of the CSI.

35. An information transmission device, wherein the information transmission device is a network device, and the information transmission device includes a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The transceiver sends a first signaling message to the terminal; the first signaling message is used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

36. An information transmission device, wherein the information transmission device is a network device, and the information transmission device includes a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The transceiver receives a CSI sent by a terminal. The CSI is sent to the network device by the terminal upon receiving a first signaling, which triggers at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

37. An information transmission device applied to a terminal, the device comprising: The first receiving unit is used to receive the first signaling; The first signaling is used to trigger at least one of the following operations: feeding back Channel State Information (CSI) to the network device, measuring the reference signal corresponding to the CSI, and transmitting the reference signal; The first transmitting unit is used to transmit CSI to the network device, which includes the network device corresponding to the serving cell or the target cell.

38. An information transmission device applied to a network device, the device comprising: The second sending unit is used to send the first signaling to the terminal; The first signaling is used to trigger at least one of the following operations: the terminal feeds back CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal; The second receiving unit is used to receive the CSI sent by the terminal.

39. An information transmission device applied to a network device, the device comprising: The second sending unit is used to send the first signaling to the terminal; The first signaling is used to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

40. An information transmission device applied to a network device, the device comprising: The second receiving unit is configured to receive the CSI sent by the terminal, wherein the CSI is sent to the network device by the terminal upon receiving a first signaling, and the first signaling is configured to trigger at least one of the following operations: the terminal feeds back the CSI to the network device, the terminal measures the reference signal corresponding to the CSI, and the terminal transmits the reference signal.

41. A non-transiently readable storage medium storing a program for causing a processor to perform the information transmission method according to any one of claims 1 to 10; or, the program for causing a processor to perform the information transmission method according to any one of claims 11 to 20; or, the program for causing a processor to perform the information transmission method according to claim 21; or, the program for causing a processor to perform the information transmission method according to claim 22.

Images