Information processing method and apparatus, and communication system

Abstract

Embodiments of the present application provide an information processing method and apparatus, and a communication system. The information processing method comprises a terminal device receiving channel state information reference signal (CSI-RS) resource configuration information and / or channel state information (CSI) reporting setting information from a network device; and the terminal device reporting CSI on the basis of the CSI-RS resource configuration information and / or the CSI reporting setting information, the CSI being related to a cell switch command for layer 1 or layer 2 triggered mobility (LTM).

Description

Information processing methods, devices and communication systems Technical Field

[0001] The embodiments of this application relate to the field of communication technology. Background Technology

[0002] During the standardization process of Release 18 (Rel-18), the 3GPP standardization organization studied Layer 1 / Layer 2 Triggered Mobility (LTM). For Rel-18 LTM, the goal is to reduce handover interruption through Layer 1 / Layer 2 signaling-based (Layer 1 / Layer 2 triggered) cell handover, thereby enabling faster handover from the serving cell (source cell) to the target cell. The target cell is the cell after the handover, which can be either the serving cell or a non-serving cell. Handover interruption refers to the time from when the terminal device receives the cell switch command (CSC) to when the terminal device successfully completes its first uplink or downlink transmission with the target cell. Compared to traditional Layer 3 signaling-based cell handover, Layer 1 / Layer 2 signaling-based cell handover can further reduce handover interruption.

[0003] To achieve layer 1 / layer 2 based cell handover, the terminal device measures multiple candidate cells. For example, the terminal device measures the layer 1-reference signal receiving power (L1-RSRP) of the system synchronization block (SSB) of the candidate cells and reports the measurement results to the source cell, for example, by sending a channel state information report (CSI report). The source cell indicates to the terminal device which candidate cell to handover to (the indicated candidate cell becomes the target cell) via a cell handover command, and indicates the beams used for uplink and downlink transmission on the target cell after the handover, for example, the transmission configuration indication state (TCI state). In Rel-18 LTM, the source cell, candidate cell, and target cell all support the Rel-17 unified TCI state; therefore, the aforementioned indicated TCI state can be a unified TCI state.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Summary of the Invention

[0005] In the LTM standardization work of release 19 (Rel-19), layer 1 (L1) measurement reporting based on SSB is supported, specifically the reporting of reference signal receiving power (RSRP) of cell beams.

[0006] The LTM standardization work in Rel-19 also supports enhanced LTM-based CSI measurement reporting. This CSI may include at least one of the following: Precoding Matrix Indicator (PMI), Channel Quality Indication (CQI), Rank Indication (RI), and CSI-RS Resource Indicator (CRI).

[0007] To assist base stations in transmitting data more accurately, CSI measurement and reporting are crucial. However, in traditional networks, CSI measurement and reporting configuration is primarily based on the completion of traditional cell handover and / or Radio Resource Control (RRC) configuration, resulting in a significant time delay. Therefore, the current CSI measurement and reporting mechanism does not better match the main purpose of the LTM mechanism, namely reducing time delay and minimizing cell handover interruption time, thus preventing base stations from acquiring CSI more quickly after a cell handover command.

[0008] Currently, how to perform CSI measurement reporting based on LTM is a problem that needs to be solved.

[0009] To address at least one of the above-mentioned problems, embodiments of this application provide an information processing method, apparatus, and communication system.

[0010] According to one aspect of the embodiments of this application, an information processing method is provided, applied to a terminal device, the method comprising: the terminal device receiving channel state information reference signal (CSI-RS) resource configuration information and / or channel state information (CSI) reporting setting information from a network device; and the terminal device reporting CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for mobility (LTM) triggered at Layer 1 or Layer 2.

[0011] According to another aspect of the embodiments of this application, an information processing method is provided, applied to a network device, the method comprising: the network device sending Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to a terminal device; and the network device receiving the CSI reported by the terminal device, wherein the CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information, and the CSI is related to a cell handover command for Layer 1 or Layer 2 mobility (LTM) triggered.

[0012] According to another aspect of the embodiments of this application, an information processing apparatus is provided, configured in a terminal device, the apparatus comprising: a receiving unit that receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from a network device; and a sending unit that reports CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 mobility (LTM) triggered.

[0013] According to another aspect of the embodiments of this application, an information processing apparatus is provided, configured in a network device, the apparatus comprising: a transmitting unit that transmits Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to a terminal device; and a receiving unit that receives the CSI reported by the terminal device, the CSI being determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information, the CSI being related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM).

[0014] According to another aspect of the embodiments of this application, a communication system is provided, the communication system comprising: a network device and a terminal device, the network device sending Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device, and receiving CSI reported by the terminal device; the terminal device receiving the CSI-RS resource configuration information and / or the CSI reporting setting information, and reporting CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM).

[0015] One of the beneficial effects of this application's embodiments is that the terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; and reports the CSI based on the CSI-RS resource configuration information and / or CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0016] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents.

[0017] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0018] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0019] The elements and features described in one drawing or embodiment of this application may be combined with elements and features shown in one or more other drawings or embodiments. Furthermore, in the drawings, similar reference numerals denote corresponding parts in several drawings and can be used to indicate corresponding parts used in more than one embodiment.

[0020] Figure 1 is a schematic diagram of a communication system according to an embodiment of this application;

[0021] Figure 2 is a schematic diagram of an information processing method according to an embodiment of this application;

[0022] Figure 3 is a schematic diagram of an information processing method according to an embodiment of this application;

[0023] Figure 4 is a schematic diagram of an information processing device according to an embodiment of this application;

[0024] Figure 5 is a schematic diagram of an information processing device according to an embodiment of this application;

[0025] Figure 6 is a schematic diagram of a terminal device according to an embodiment of this application;

[0026] Figure 7 is a schematic diagram of a network device according to an embodiment of this application. Detailed Implementation

[0027] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be adopted. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0028] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0029] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0030] In the embodiments of this application, the term "communication network" or "wireless communication network" may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0031] Furthermore, communication between devices in a communication system can be carried out according to communication protocols at any stage, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other currently known or future communication protocols.

[0032] In the embodiments of this application, the term "network device" refers, for example, to a device in a communication system that connects a terminal device to a communication network and provides services to that terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0033] Base stations can include, but are not limited to: NodeBs (or NBs), evolved NodeBs (eNodeBs or eNBs), and 5G base stations (gNBs), IAB hosts, etc. They can also include Remote Radio Heads (RRHs), Remote Radio Units (RRUs), relays, or low-power nodes (e.g., femeto, pico, etc.). The term "base station" can encompass some or all of their functions, and each base station can provide communication coverage to a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0034] In the embodiments of this application, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer, for example, to a device that accesses a communication network and receives network services through a network device. A terminal device can be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc.

[0035] The terminal device may include, but is not limited to, the following devices: cellular phone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, cordless phone, smartphone, smartwatch, digital camera, etc.

[0036] For example, in scenarios such as the Internet of Things (IoT), terminal devices can also be machines or devices for monitoring or measurement, such as including but not limited to: machine-type communication (MTC) terminals, vehicle communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and so on.

[0037] Furthermore, the terms "network side" or "network equipment side" refer to one side of the network, which can be a base station or include one or more network devices as described above. The terms "user side," "terminal side," or "terminal equipment side" refer to the side of the user or terminal, which can be a UE or include one or more terminal devices as described above. Unless otherwise specified, "equipment" can refer to either network equipment or terminal equipment.

[0038] The following examples illustrate the scenarios of embodiments of this application, but this application is not limited thereto.

[0039] Figure 1 is a schematic diagram of a communication system according to an embodiment of this application, illustrating the case of a terminal device and a network device as examples. As shown in Figure 1, the communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, Figure 1 only illustrates the case of two terminal devices and one network device, but the embodiments of this application are not limited to this.

[0040] In this embodiment of the application, network device 101 and terminal devices 102 and 103 can transmit existing services or services that can be implemented in the future. For example, these services may include, but are not limited to: enhanced mobile broadband (eMBB), massive machine-type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0041] It is worth noting that Figure 1 shows that both terminal devices 102 and 103 are within the coverage area of ​​network device 101, but this application is not limited to this. Both terminal devices 102 and 103 may be outside the coverage area of ​​network device 101, or one terminal device 102 may be within the coverage area of ​​network device 101 while the other terminal device 103 may be outside the coverage area of ​​network device 101.

[0042] In the embodiments of this application, the signaling may be, for example, Radio Resource Control (RRC) signaling; for example, referred to as an RRC message, including MIB, system information, dedicated RRC messages; or referred to as an RRC information element. The signaling may also be, for example, Medium Access Control (MAC) signaling; or referred to as a MAC control element. However, this application is not limited to these.

[0043] In the following description, without confusion, the terms "PDCCH" and "Physical Downlink Control Channel" or "Downlink Control Information" are used interchangeably, as are the terms "PDSCH" and "Physical Downlink Data Channel" or "Downlink Data". Furthermore, transmitting or receiving a PDCCH can be understood as transmitting or receiving downlink control information carried by the PDCCH; transmitting or receiving a PDSCH can be understood as transmitting or receiving downlink data carried by the PDSCH.

[0044] The terms "PUCCH" and "Physical Uplink Control Channel" or "Uplink Control Information" are interchangeable, as are the terms "PUSCH" and "Physical Uplink Data Channel" or "Uplink Data." Furthermore, transmitting or receiving a PUCCH can be understood as transmitting or receiving downlink control information carried by the PUCCH; transmitting or receiving a PUSCH can be understood as transmitting or receiving downlink data carried by the PUSCH.

[0045] For ease of understanding, the following further explains LTM.

[0046] For Rel-18 LTM, the terminal device performs measurements based on SSB or CSI-RS, which enables downlink synchronization with candidate cells (including the target cell) to a certain extent. The terminal device can be triggered by a Physical Downlink Control Channel (PDCCH) order sent by the serving cell to send a Physical Random Access Channel (PRACH) to the candidate cell, thereby achieving uplink synchronization with the candidate cell. The serving cell instructs the terminal device, via a cell handover command (e.g., carried by the Media Access Control (MAC) Control Unit (CE)), to select which candidate cell to hand over to (the indicated candidate cell becomes the target cell), and indicates the beam used for uplink and downlink transmission on the target cell after the handover. For example, the beam refers to the transmission configuration indication state (TCI state). In LTM, the serving cell, candidate cell, and target cell all support a unified TCI state; therefore, the aforementioned indicated TCI state is a unified TCI state. The terminal device receives the cell handover command, which indicates the target cell and the TCI state applied on the target cell. Before receiving the cell handover command, the terminal device has already synchronized with the target cell. After handover to the target cell, it can perform uplink and downlink transmissions with the target cell according to the indicated TCI state. The source reference signal included in the TCI state IE can be either SSB or TRS.

[0047] A unified TCI state can be a joint TCI state or a separate TCI state. A joint TCI state is both a downlink TCI state and an uplink TCI state; a separate TCI state is either a downlink TCI state or an uplink TCI state. The serving cell can activate the candidate cell's TCI state for the terminal device before the cell handover command, and then indicate one (or a pair) of activated TCI states in the cell handover command; alternatively, the serving cell can also indicate one (or a pair) of inactive TCI states in the cell handover command, which is equivalent to the cell handover command directly indicating and activating the TCI state.

[0048] In LTM, the cell that a terminal device may hand over to is called a candidate cell, and the cell that the terminal device actually hands over to is called the target cell. A candidate cell can be a serving cell or a non-serving cell. The terminal device can be provided with candidate cell configuration, receive a cell switch command and a TCI state indication, hand over to the target cell, and apply the indicated TCI state on the target cell.

[0049] Cell handover commands can indicate Timing Advance (TA), or, if a capable terminal device can obtain the TA itself based on measurements, the terminal device does not need to perform the RACH procedure after the cell handover command; this is called RACH-less LTM. Furthermore, Rel-18 also supports performing the RACH procedure after the cell handover command; this is called RACH-based LTM. If the cell handover command does not indicate a valid TA, and the terminal device is not capable of obtaining the TA itself based on measurements, then the terminal device needs to obtain the TA through the RACH procedure after the cell handover command. This RACH procedure can be Contention-Free Random Access (CFRA), i.e., contention-free random access, or Contention-Based Random Access (CBRA).

[0050] For ease of understanding, the CSI feedback mechanism will be further explained below.

[0051] In mobile communication systems, terminal devices typically perform CSI measurements according to the instructions and configurations of network devices, and then report the measured CSI to the network devices. When scheduling the terminal device, the network devices can refer to the CSI to schedule the terminal device to transmit using appropriate transmission methods on suitable physical resources. Different terminal devices may experience different physical channel conditions; using a CSI feedback mechanism can make reasonable and effective use of physical resources, thereby improving the overall network transmission efficiency.

[0052] In the CSI feedback mechanism, the terminal device mainly measures and reports reference signals based on the CSI configuration. The reference signals include CSI-RS and SSB, etc. The CSI configuration is mainly divided into two parts: first, the network device configures the reference resources for CSI measurement for the terminal device (CSI-RS resource configuration); second, the network device configures how the terminal device reports (CSI reporting configuration or CSI reporting settings).

[0053] CSI-RS resource settings can be used for interference measurements and CSI channel measurements. Each resource setting contains S resource sets, and each resource set contains Ks CSI-RS resources. A non-periodic resource setting can contain one or more resource sets. For periodic and semi-persistent resource settings, only one resource set can be included when used for CSI acquisition.

[0054] In the CSI reporting framework, CSI reports (used for reporting) are associated with CSI resources (used for measurement). CSI reports can be configured into three types: Periodic CSI reports (P-CSI): transmitted only on the Physical Uplink Control Channel (PUCCH); Semi-persistent CSI reports (SP-CSI): transmitted on either the PUCCH or the Physical Uplink Shared Channel (PUSCH); and Aperiodic CSI reports (AP-CSI): transmitted only on the PUSCH.

[0055] Periodic CSI reports can only be associated with periodic CSI-RS, semi-persistent CSI reports can be associated with both periodic and semi-persistent CSI-RS, and aperiodic CSI reports can be associated with periodic, semi-persistent, and aperiodic CSI-RS.

[0056] P (Period): The feedback period and time slot offset of periodic CSI feedback are configured by RRC. Periodic CSI reporting can only use periodic CSI-RS for channel measurements and periodic CSI-IM (CSI Interference Measurement) for interference measurements. It does not support interference measurements using NZP CSI-RS (Non-Zero Power Channel State Information-Reference Signal). During CSI acquisition, each periodic CSI reporting setting is associated with only one CSI-RS resource set in its associated resource setting. The QCL (quasi-co-location) information for each CSI-RS resource is determined by the TCI state of this resource setting.

[0057] SP (Semi-Persistent): SP-CSI feedback can use periodic CSI-RS or semi-persistent CSI-RS (SP-CSI-RS) for channel measurements, and correspondingly use periodic CSI-IM or semi-persistent CSI-IM (SP-CSI-IM) for interference measurements. NZP CSI-RS is not supported for interference measurements. SP-CSI can be reported based on either PUSCH or PUCCH. PUSCH-based SP-CSI is more similar to aperiodic CSI reporting, with dynamically allocated feedback resources; while PUCCH-based SP-CSI is more similar to periodic CSI reporting, with semi-static feedback resource indication. Therefore, these two feedback methods employ different activation and deactivation mechanisms.

[0058] PUSCH-based SP-CSI: Activated and deactivated by DCI signaling. Within the CSI feedback framework, RRC configures multiple trigger states, up to 64, with each trigger state corresponding to a CSI reporting setting. A trigger state is activated using the CSI request field in DCI. Multiple PUSCH-based SP-CSI instances can be active simultaneously. During CSI acquisition, each CSI reporting setting's associated resource setting contains only one CSI-RS resource set.

[0059] SP-CSI Activation and Deactivation: To distinguish between non-periodic CSI reporting triggering and SP-CSI reporting activation, the DCI format 0_1 ​​scrambled with SP-CSI C-RNTI (Cell-Radio Network Temporary Identifier) ​​is used to activate and deactivate SP-CSI.

[0060] SP-CSI Feedback Slot Offset: Since PUSCH resources are dynamically allocated, the SP-CSI feedback slot offset is indicated by the DCI. This feedback slot offset represents the number of slots from DCI activation to SP-CSI reporting. When SP-CSI reporting is activated in slot n, and the DCI indicates a slot offset of Y, the first SP-CSI reporting slot is n+Y, the second SP-CSI reporting slot is n+Y+P, and so on. Here, P represents the SP-CSI feedback period. The candidate value for this feedback slot Y is configured in the report setting by RRC signaling.

[0061] Activation and deactivation during BWP (Bandwidth Part) handover: Because PUSCH resources are dynamically allocated, CSI reporting based on PUSCH is deactivated during uplink or downlink BWP handover. When the BWP handover is restored, it needs to be reactivated using DCI signaling.

[0062] PUCCH-based SP-CSI: Activated and deactivated by MAC CE. Within the CSI feedback framework, RRC configures multiple SP CSI report settings, and each report setting is configured with multiple PUCCH resources, with one PUCCH resource configured for each candidate UL BWP. MAC CE activates only one report setting at a time.

[0063] SP-CSI Feedback Slot Offset: PUCCH resources are semi-statically allocated, therefore the SP-CSI feedback period and slot offset are configured by RRC in the report settings. It represents the absolute slot position of the system and is independent of the MAC CE activation time.

[0064] Activation and deactivation during BWP handover: During uplink BWP handover, since the PUCCH resources for each candidate BWP have already been configured by RRC, continuous SP-CSI feedback can be guaranteed. Considering the semi-static allocation of PUCCH resources, during downlink BWP handover, CSI reporting based on PUCCH remains active. When the BWP handover back, there is no need to use new DCI signaling to reactivate it, and reporting can continue.

[0065] AP (Aperiodic): Aperiodic CSI reporting is configured and triggered using MAC CE combined with DCI, and is reported based on PUSCH. RRC configures multiple CSI trigger states. Unlike SP-CSI reporting, each CSI trigger state can correspond to one or more report settings. A report setting is triggered by the CSI request field in DCI. The size of the CSI request field in DCI format 0_1 ​​can be configured from 0 to 6 bits by RRC signaling, thus indicating a maximum of 64 CSI trigger states. When the number of CSI trigger states configured by RRC exceeds 64, MAC CE signaling maps 64 of these CSI trigger states to the CSI request field. Aperiodic CSI reporting can use periodic, semi-persistent, or aperiodic CSI-RS for channel measurement, and correspondingly use periodic, semi-persistent, or aperiodic CSI-IM for interference measurement. Only aperiodic NZP CSI-RS can be used for interference measurement.

[0066] Each triggered state can be associated with 1, 2, or 3 resource settings.

[0067] Associated with one resource setting: used for beam management.

[0068] It is associated with two resource settings: one setting for channel measurement and the other setting for interference measurement based on CSI-IM or interference measurement based on NZP CSI-RS.

[0069] It is associated with three resource settings: one setting for channel measurement, one setting for CSI-IM-based interference measurement, and another setting for NZP CSI-RS-based interference measurement.

[0070] If a resource setting contains multiple resource sets, only one resource set is selected. The QCL information for the CSI-RS resources in this resource set is configured for each resource by the TCI state.

[0071] Feedback slot offset for A-CSI (Aperiodic CSI): Similar to SP-CSI, the slot offset reported by Aperiodic CSI is indicated by DCI, and its candidate values ​​are configured in the report setting by RRC signaling. Since each trigger state can correspond to multiple report settings, and different report settings may be configured with different reporting offsets, a unique reporting offset needs to be determined to ensure that all A-CSI reports in the same PUSCH resource. The maximum slot offset among the slot offsets reported by each A-CSI indicated by DCI can be defined as the slot offset corresponding to this trigger state. Assuming a trigger state corresponds to N report settings, if Yi represents the reporting offset of report setting i indicated by DCI, i = 0, 1, ..., N-1, then the reporting offset of A-CSI for this trigger state is determined as follows:

[0072] In the following embodiments, “CSI” can be equivalently replaced with “CSI report”, “CSI resource” can be equivalently replaced with “CSI-RS resource”, “reporting setting” can be equivalently replaced with “report setting”, and “trigger status” can be equivalently replaced with “CSI trigger status”.

[0073] The following description is based on specific examples.

[0074] First aspect of the embodiments

[0075] This application provides an information processing method, which will be described from the perspective of a terminal device.

[0076] Figure 2 is a schematic diagram of an information processing method according to an embodiment of this application. As shown in Figure 2, the method includes:

[0077] 201. The terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; and

[0078] 202. The terminal device reports CSI based on CSI-RS resource configuration information and / or CSI reporting setting information, wherein the CSI is related to the cell switching command (CSC) for mobility (LTM) triggered by layer 1 or layer 2.

[0079] According to embodiments of this application, a terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from a network device; and reports a CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0080] In some embodiments, in an LTM scenario, CSI acquisition based on CSI-RS can be specified on a candidate cell before or during cell handover.

[0081] In some embodiments, the terminal device may perform CSI-RS measurement and CSI reporting operations after receiving a Cell Handover Command (CSC) for Layer 1 or Layer 2 Mobility (LTM) triggered. For example, based on the target cell indicated in the CSC, the terminal device may perform CSI-RS measurement for that target cell and send the generated CSI report directly to that target cell.

[0082] In other embodiments, the terminal device can initiate CSI-RS measurements before receiving a Cell Handover Command (CSC) for Layer 1 or Layer 2 Mobility (LTM) triggered. Upon receiving the CSC, the terminal device reports the CSI of the target cell as indicated in the CSC. This further reduces time delays and cell handover interruption time.

[0083] When a terminal device begins CSI-RS measurement before receiving a CSC (Cell Controller Search), since the terminal device is unsure which candidate cell the target cell is after the cell handover, it can configure CSI-RS resources for one or more candidate cells before receiving the CSC and acquire the CSI of those candidate cells based on the configured CSI-RS resources. After receiving the CSC, based on the target cell indicated by the CSC, the terminal device selects the CSI of the candidate cell identified as the target cell from the acquired candidate cell CSIs and reports that CSI.

[0084] The following provides an exemplary description of the CSI-RS resource configuration information and CSI reporting settings in the embodiments of this application.

[0085] In some embodiments, CSI-RS resource configuration information is at least related to candidate cell configuration. In other words, candidate cell configuration may include one or more candidate cells. Before receiving a CSC, the terminal device is pre-configured with CSI-RS resources for one or more candidate cells. This allows the terminal device to perform CSI-RS measurements on the one or more candidate cells, thereby acquiring their CSI. After receiving a CSC, the CSI of the target cell can be quickly reported, further reducing time delays and cell handover interruption time.

[0086] In some embodiments, the candidate cells in the candidate cell configuration can be all candidate cells. Therefore, the terminal device can perform CSI-RS measurements of all candidate cells before or during cell handover, thereby acquiring the CSI of all candidate cells. Thus, regardless of which candidate cell the target cell is, the terminal device can quickly report the CSI of the target cell. However, this application is not limited to this; the candidate cells in the candidate cell configuration can also be one or a subset of all candidate cells.

[0087] In some embodiments, the CSI-RS resource configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration. Thus, the terminal device can determine the correspondence between the configured CSI-RS and the candidate cells, and further determine the correspondence between the CSI measured based on the CSI-RS and the candidate cells, thereby enabling accurate CSI reporting.

[0088] In some embodiments, CSI-RS resource configuration information can be used to configure at least one CSI-RS resource set, wherein a CSI-RS resource set is associated with at least one or more index values ​​of candidate cells in the candidate cell configuration. Thus, the terminal device can determine the correspondence between the configured CSI-RS resource set and the candidate cells, and further determine the correspondence between the CSI measured based on the CSI-RS resource set and the candidate cells, thereby enabling accurate CSI reporting.

[0089] In some embodiments, the index value of a candidate cell can be various values ​​that can distinguish candidate cells. For example, the index value of a candidate cell can be a Physical Cell Identifier (PCI).

[0090] In some embodiments, the CSI reporting configuration information is at least related to the candidate cell configuration. In other words, the candidate cell configuration may include one or more candidate cells. Before receiving the CSC, the terminal device is pre-configured with the CSI reporting configuration of one or more candidate cells. Thus, after receiving the CSC, the terminal device can report the CSI of the target cell according to the CSI reporting configuration of the target cell among the one or more candidate cells, thereby further reducing time delay and cell handover interruption time.

[0091] This application is not limited to this; the CSI reporting configuration information may also be independent of the candidate cell configuration. For example, after receiving a CSC, the terminal device is configured with the CSI reporting configuration information of the target cell and reports the CSI based on the target cell's CSI reporting configuration information.

[0092] In some embodiments, the candidate cells in the candidate cell configuration can be all candidate cells. Therefore, the terminal device can obtain the CSI reporting configuration of all cells before or during cell handover, and thus, regardless of which candidate cell the target cell is, the terminal device can quickly report the CSI of the target cell. However, this application is not limited to this; the candidate cells in the candidate cell configuration can also be one or a subset of all candidate cells.

[0093] In some embodiments, the CSI reporting configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration. This allows the terminal device to determine the correspondence between the CSI reporting configuration and the candidate cells.

[0094] In some embodiments, the CSI reporting configuration information includes X reporting sub-configurations, each reporting sub-configuration being associated with at least one or more index values ​​of candidate cells in the candidate cell configuration, where X is an integer greater than or equal to 1. Thus, the terminal device can determine the correspondence between each reporting sub-configuration and the candidate cells.

[0095] In some embodiments, each reporting sub-configuration in the CSI reporting settings information may include codebook setting parameters. These codebook setting parameters may include at least one of the following: codebook type, codebook subband bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0096] The codebook settings parameters in each reporting sub-configuration can be independent. For example, if reporting sub-configuration 1 corresponds to candidate cell 1 and reporting sub-configuration 2 corresponds to candidate cell 2, then the codebook settings parameters in reporting sub-configuration 1 apply to candidate cell 1 but not to candidate cell 2; similarly, the codebook settings parameters in reporting sub-configuration 2 apply to candidate cell 2 but not to candidate cell 1.

[0097] In some embodiments, the CSI reporting configuration information may include not only X reporting sub-configurations but also common reporting information. This common reporting information is related to the X reporting sub-configurations. The common reporting information may include codebook configuration parameters, which include at least one of the following: codebook type, codebook sub-bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0098] In other words, in the CSI reporting configuration information, common reporting parameters from X reporting sub-configurations can be used as public reporting information. That is, these reporting parameters are the same for all candidate cells measured by the terminal device. This reduces the amount of data in the CSI reporting configuration information and saves signaling overhead.

[0099] In some embodiments, the terminal device receives a cell handover command. When the CSI reporting type is periodic CSI reporting, after the cell handover command is received, the terminal device reports CSI related to the target cell in the cell handover command; and / or, the terminal device does not report CSI unrelated to the target cell in the cell handover command; and / or, the terminal device ignores reporting CSI unrelated to the target cell in the cell handover command.

[0100] Specifically, the terminal device reports only the CSI of the target cell based on the information of the target cell in the CSC, the correspondence between the measured CSI and the candidate cells, and the correspondence between the CSI reporting configuration and the candidate cells.

[0101] In some embodiments, when the CSI reporting type is periodic CSI reporting, the CSI reporting settings information may include offset information, and the reporting time corresponding to the offset information is at least later than the cell handover command. In other words, the offset information is used to determine the reporting time of periodic CSI, wherein the reporting time of periodic CSI is after the cell handover command.

[0102] In some embodiments, the terminal device may not expect the CSI reporting type to be configured as periodic CSI reporting. The CSI reporting type can be configured in the CSI reporting settings information.

[0103] In some embodiments, when the CSI reporting type is semi-continuous or non-periodic CSI reporting, the terminal device performs CSI reporting after the CSI report is activated, indicated, or triggered.

[0104] For example, when the CSI reporting type is semi-persistent or aperiodic, the terminal device can also receive first information for activating, indicating, or triggering CSI. This first information can be carried in at least one of the following: MAC CE signaling carrying a cell handover instruction, CSI request indication information based on the DCI, and a PDSCH channel carrying RAR (Random Access Response) uplink grant. In other words, the first information can be sent together with the CSC, for example, by activating, indicating, or triggering CSI reporting through MAC CE signaling carrying a cell handover instruction. Alternatively, the first information can also be sent after the CSC, for example, by activating, indicating, or triggering CSI reporting through CSI request indication information based on the DCI or a PDSCH channel carrying RAR uplink grant.

[0105] In some embodiments, the first information may be related to a first CSI trigger state in a CSI trigger list configured in higher-layer signaling, wherein the first CSI trigger state may be associated with a reported CSI. For example, the CSI trigger list includes multiple CSI trigger states, and each CSI trigger state is associated with at least one CSI reporting setting and / or at least one CSI-RS resource. The terminal device may select a CSI trigger state from the CSI trigger list, i.e., the first CSI trigger state, based on the first information. The terminal device then performs CSI reporting based on the CSI reporting setting and / or CSI-RS resource associated with the first CSI trigger state.

[0106] In some embodiments, when the CSI reporting type is semi-persistent or aperiodic CSI reporting, the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling may not exceed 2^Q, where Q is an integer configured in the higher-layer signaling. Specifically, the value of Q ranges from {0, 1, 2, 3, 4, 5, 6}. This application is not limited to this; Q may also be an integer larger than 6.

[0107] In some embodiments, when the CSI reporting type is semi-persistent or aperiodic CSI reporting, the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling can exceed 2^Q. In this case, the first information can indicate the selection of the first 2^Q CSI trigger states in the CSI trigger list. In other words, the terminal device can select a first CSI trigger state from the first 2^Q CSI trigger states in the CSI trigger list based on the first information.

[0108] In some embodiments, when the CSI reporting type is semi-persistent or aperiodic CSI reporting, the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling can exceed 2^Q. In this case, a subset of CSI trigger states in the CSI trigger list can be selected and indicated via first information (e.g., MAC CE signaling). In other words, a subset of CSI trigger states in the CSI trigger list can be indicated via MAC CE signaling. This application is not limited to this; the subset can also be indicated via other signaling methods.

[0109] In cases where a subset of CSI trigger states in the CSI trigger list is indicated via MAC CE, the selection indication of the first trigger state in the subset can also be made via CSI request indication information in DCI and / or a PDSCH channel carrying RAR uplink grant.

[0110] In some embodiments, the MAC CE signaling can be MAC CE signaling carrying cell handover instructions. This application is not limited to this; the MAC CE signaling can also be other signaling.

[0111] In some embodiments, when the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI-RS resource associated with the CSI reporting settings is a semi-persistent CSI-RS resource, the CSI-RS resource and CSI can be activated, indicated, or triggered by a single MAC CE signaling. This application is not limited to this; the CSI-RS resource and CSI can also be activated, indicated, or triggered simultaneously by another signaling, or the CSI-RS resource and CSI can be activated, indicated, or triggered separately by two separate signaling signals.

[0112] In some embodiments, the MAC CE signaling can be MAC CE signaling carrying cell handover instructions. This application is not limited to this; the MAC CE signaling can also be other signaling.

[0113] The following provides a specific example of the information processing method of this application.

[0114] Scenario 1: CSI measurement before CSC

[0115] The terminal device receives CSI resource configuration and / or CSI reporting settings. The CSI resource configuration includes one or more CSI-RS resources used for channel measurements.

[0116] Specifically, CSI resource configuration is at least related to candidate cell configuration. That is, CSI resource configuration includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0117] Each resource set in the CSI resource configuration is associated with at least one or more candidate cell index values.

[0118] For example, within the CSI-RS ResourcesetList, each CSI resource set ID is configured with an associated PCI value, which is the candidate cell index value.

[0119] For example, in the CSI-RS ResourcesetList, set up a CSI resource set of group G, and configure an associated PCI value for each group, which is the candidate cell index value.

[0120] For example, multiple CSI-RS ResourcesetLists can be configured (e.g., CSI-RS ResourcesetList-0, CSI-RS ResourcesetList-1, etc.). Each CSI-RS ResourcesetList is configured with an associated PCI value, which is the candidate cell index value.

[0121] CSI reporting settings are related to candidate cell configuration. Specifically, CSI reporting settings include the PCI index values ​​of one or more candidate cells in the candidate cell configuration.

[0122] As shown in Table 1, the higher-layer signaling of the CSI reporting settings may include X CSI reporting sub-configurations, and each reporting sub-configuration includes the configuration information of a candidate cell PCI.

[0123] In the CSI reporting settings, one or more common reporting configuration information can be included before X CSI reporting sub-configurations. That is, the common reporting configuration information includes reporting parameters, and these reporting parameters are the same for all candidate cells measured by the terminal device.

[0124] The jointly reported configuration information may include: codebook type parameters, and / or, codebook subband bandwidth configuration parameters, and / or, CBSR (Codebook subset restriction).

[0125] In the CSI reporting settings, within each of the X CSI reporting sub-configurations, the following CSI reporting parameters can be configured independently: codebook type parameter, and / or, codebook sub-bandwidth configuration parameter, and / or, CBSR (Codebook subset restriction). This means the terminal device can perform CSI measurements on different candidate cells based on independent codebook parameters.

[0126] Table 1:

[0127] During the formal cell handover process, the base station sends a cell handover command to the terminal device via MAC CE signaling (Layer 2) based on the L1 measurement results (Layer 1) of multiple candidate cells reported by the terminal device. Table 2 shows an example of a cell handover command.

[0128] Table 2:

[0129] When the CSI reporting type is periodic CSI reporting, after the terminal device receives the CSC, the terminal device only reports CSI related to the target cell (e.g., serving cell) in the CSC; and / or, the terminal device does not report CSI unrelated to the target cell (e.g., serving cell) in the CSC; and / or, the terminal device ignores reporting CSI unrelated to the target cell (e.g., serving cell) in the CSC.

[0130] For example, if the Target Configuration ID in the CSC can be implicitly associated with a cell with PCI=M, then the UE will only report the periodic CSI of the cell with PCI=M and will not report the periodic CSI of other candidate cells. Specifically, the terminal device can confirm the correspondence based on the PCI value in the CSI reporting settings.

[0131] Optionally, the reporting offset for periodic CSI in this CSI reporting setting is at least later than the CSC signaling.

[0132] When the CSI reporting type is semi-continuous and / or aperiodic CSI reporting, the terminal device activates and / or indicates CSI based on one of the following methods:

[0133] Method 1:

[0134] The terminal device receives first information related to the CSI, which may indicate a CSI trigger state in the CSI reporting settings.

[0135] For example, when the CSI reporting type is semi-persistent or aperiodic CSI reporting, the number of trigger states in the CSI trigger list configured in the higher-layer signaling will not exceed 2^Q, where Q is one of {0, 1, 2, 3, 4, 5, 6}. In this case, CSI and / or CSI trigger states can be activated and / or indicated and / or triggered in the following ways:

[0136] (1) MAC CE signaling carrying CSC

[0137] This can be indicated using existing reserved bits (R) in the CSC signaling. At most, R = Q bits can be used for indication, where Q is one of {0, 1, 2, 3, 4, 5, 6}.

[0138] (2) Based on CSI request indication information in DCI

[0139] Specifically, it is indicated using Q bits.

[0140] (3) PDSCH channel carrying RAR UL grant (Random Access Response Uplink Grant)

[0141] Specifically, it is indicated using Q bits.

[0142] (4) The first trigger state associated with the CSI is the first CSI trigger state in the CSI trigger list configured in the higher-layer signaling by default.

[0143] Method 2:

[0144] When the CSI reporting type is aperiodic CSI reporting, the number Z of trigger states in the CSI trigger list configured in the higher-layer signaling is greater than 2^Q. In this case, CSI activation and / or indication can be performed in the following ways:

[0145] (1) The traditional AP CSI Trigger State Subselection MAC CE is used for instruction.

[0146] (2) Add a subselection indication to the MAC CE in CSC.

[0147] For example, all Z CSI trigger states can be grouped into Y groups using Y reserved bit fields in the CSC's MAC CE. Here, Y is greater than or equal to 1 and less than or equal to Q. Furthermore, the selection of a CSI trigger state within a group is indicated via the DCI CSI request field, and / or via the PDSCH channel carrying the RAR UL grant.

[0148] For example, Y1 or log(Y1) bits from the Y reserved bit fields in the CSC's MAC CE can represent one of the Y1 groups of Z CSI trigger states, and Y2 or log(Y2) bits from the Y reserved bit fields in the CSC's MAC CE can be used to indicate the selection of a CSI trigger state within that group. Here, the sum of Y1 or log(Y1) and Y2 or log(Y2) equals Y. The Y1 or log(Y1) bits can be the first Y1 or log(Y1) bits from the Y reserved bit fields; the Y2 or log(Y2) bits can be the last Y2 or log(Y2) bits from the Y reserved bit fields.

[0149] (3) Predefined method, by default activates and / or indicates and / or triggers one of the first 2^Q CSI trigger states, that is, by default selects the first to the second 2^Q CSI trigger states first, and then activates and / or indicates and / or triggers one of these 2^Q CSI trigger states through the first information.

[0150] In some embodiments, when the CSI reporting type is aperiodic and / or semi-persistent CSI reporting, and the resource associated in the CSI reporting setting is a semi-persistent CSI-RS, a single MAC CE signaling can be used to simultaneously activate the indication CSI resource and CSI reporting.

[0151] Scenario 2: CSI measurement after CSC

[0152] During the formal cell handover process, the base station sends a cell handover command to the terminal device via MAC CE signaling (layer 2) based on the L1 measurement results (layer 1) of multiple candidate cells reported by the terminal device.

[0153] After receiving the cell handover command, the UE performs RRC reconfiguration on the serving cell (target cell) after the handover. Optionally, the UE sends an RRC reconfiguration completion message to the base station.

[0154] When the CSI reporting type is semi-continuous and / or aperiodic CSI reporting, the terminal device activates and / or indicates CSI based on one of the following methods:

[0155] Method 1:

[0156] The terminal device receives first information related to the CSI, which may indicate a CSI trigger state in the CSI reporting settings.

[0157] For example, when the CSI reporting type is semi-persistent or aperiodic CSI reporting, the number of trigger states in the CSI trigger list configured in the higher-layer signaling will not exceed 2^Q, where Q is one of {0, 1, 2, 3, 4, 5, 6}. In this case, CSI and / or CSI trigger states can be activated and / or indicated and / or triggered in the following ways:

[0158] (1) MAC CE signaling carrying CSC

[0159] This can be indicated using existing reserved bits (R) in the CSC signaling. At most, R = Q bits can be used for indication, where Q is one of {0, 1, 2, 3, 4, 5, 6}.

[0160] (2) Based on CSI request indication information in DCI

[0161] Specifically, it is indicated using Q bits.

[0162] (3) PDSCH channel carrying RAR UL grant (Random Access Response Uplink Grant)

[0163] Specifically, it is indicated using Q bits.

[0164] (4) The first trigger state associated with the CSI is the first CSI trigger state in the CSI trigger list configured in the higher-layer signaling by default.

[0165] Method 2:

[0166] When the CSI reporting type is aperiodic CSI reporting, the number Z of trigger states in the CSI trigger list configured in the higher-layer signaling is greater than 2^Q. In this case, CSI activation and / or indication can be performed in the following ways:

[0167] (1) The traditional AP CSI Trigger State Subselection MAC CE is used for instruction.

[0168] (2) Add a subselection indication to the MAC CE in CSC.

[0169] For example, all Z CSI trigger states can be grouped into Y groups using Y reserved bit fields in the CSC's MAC CE. Here, Y is greater than or equal to 1 and less than or equal to Q. Furthermore, the selection of a CSI trigger state within a group is indicated via the DCI CSI request field, and / or via the PDSCH channel carrying the RAR UL grant.

[0170] For example, Y1 or log(Y1) bits from the Y reserved bit fields in the CSC's MAC CE can represent one of the Y1 groups of Z CSI trigger states, and Y2 or log(Y2) bits from the Y reserved bit fields in the CSC's MAC CE can be used to indicate the selection of a CSI trigger state within that group. Here, the sum of Y1 or log(Y1) and Y2 or log(Y2) equals Y. The Y1 or log(Y1) bits can be the first Y1 or log(Y1) bits from the Y reserved bit fields; the Y2 or log(Y2) bits can be the last Y2 or log(Y2) bits from the Y reserved bit fields.

[0171] (3) Predefined method, by default activates and / or indicates and / or triggers one of the first 2^Q CSI trigger states, that is, by default selects the first to the second 2^Q CSI trigger states first, and then activates and / or indicates and / or triggers one of these 2^Q CSI trigger states through the first information.

[0172] In some embodiments, when the CSI reporting type is aperiodic and / or semi-persistent CSI reporting, and the resource associated in the CSI reporting setting is a semi-persistent CSI-RS, a single MAC CE signaling can be used to simultaneously activate the indication CSI resource and CSI reporting.

[0173] It is worth noting that the above figures are merely illustrative of embodiments of this application, and the application is not limited thereto. For example, the execution order between various operations can be appropriately adjusted, and other operations can be added or some operations can be removed. Those skilled in the art can make appropriate modifications based on the above description, and are not limited to the description in the above figures.

[0174] The above embodiments are merely illustrative examples of the embodiments of this application, but this application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined. The embodiments of this application are illustrated using two reports as an example, but can be extended to cases with more than two reports, which will not be elaborated further.

[0175] In this embodiment, the terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; it then reports a CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0176] Second aspect of the embodiments

[0177] This application provides an information processing method, described from the perspective of a network device. The embodiments of the second aspect can be combined with the embodiments of the first aspect, and the content identical to that of the embodiments of the first aspect will not be repeated.

[0178] Figure 3 is a schematic diagram of an information processing method according to an embodiment of this application. As shown in Figure 3, the method includes:

[0179] 301. The network device sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device;

[0180] 302, The network device receives the CSI reported by the terminal device. The CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information. The CSI is related to the cell handover command for mobility (LTM) triggered by Layer 1 or Layer 2.

[0181] In some embodiments, the CSI-RS resource configuration information is at least related to candidate cell configuration.

[0182] In some embodiments, the CSI-RS resource configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0183] In some embodiments, the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and a CSI-RS resource set is associated with at least one or more index values ​​of candidate cells in the candidate cell configuration.

[0184] In some embodiments, the CSI reporting configuration information is at least related to the candidate cell configuration.

[0185] In some embodiments, the CSI reporting configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0186] In some embodiments, the CSI reporting settings information includes X reporting sub-configurations, each reporting sub-configuration being associated with at least one or more index values ​​of candidate cells in the candidate cell configuration, where X is an integer greater than or equal to 1.

[0187] In some embodiments, the CSI reporting settings information further includes common reporting information, which is related to the X reporting sub-configurations. The common reporting information includes codebook setting parameters, which include at least one of the following: codebook type, codebook sub-bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0188] In some embodiments, the reporting sub-configuration includes codebook setting parameters, which include at least one of the following: codebook type, codebook subband bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0189] In some embodiments, the network device further sends the cell handover command, and the CSI reporting type is periodic CSI reporting. After the cell handover command is sent, the network device receives CSI related to the target cell in the cell handover command; and / or, the network device does not receive CSI unrelated to the target cell in the cell handover command; and / or, the network device ignores CSI unrelated to the target cell in the cell handover command.

[0190] In some embodiments, the CSI reporting type is not configured as periodic CSI reporting.

[0191] In some embodiments, the CSI reporting setting information includes offset information, and the reporting time corresponding to the offset information is at least later than the cell handover command.

[0192] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI is associated with the first CSI trigger state in the CSI trigger list configured in the higher-layer signaling.

[0193] In some embodiments, the CSI reporting type is semi-persistent or aperiodic CSI reporting, and the network device also sends first information for activating, indicating or triggering the CSI, the first information being carried in at least one of the following: MAC CE signaling carrying the cell handover instruction, CSI request indication information based on DCI, and PDSCH channel carrying RAR uplink grant.

[0194] In some embodiments, the first information is related to a first CSI trigger state in a CSI trigger list configured in higher-layer signaling, and the first CSI trigger state is associated with the CSI.

[0195] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling does not exceed 2^Q, where Q is an integer configured in the higher-layer signaling.

[0196] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the first information indicates the selection of the first 2^Q CSI trigger states in the CSI trigger list.

[0197] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the subset selection indication of the trigger states in the CSI trigger list is performed through MAC CE signaling.

[0198] In some embodiments, the MAC CE signaling is MAC CE signaling carrying the cell handover instruction.

[0199] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI-RS resource associated with the CSI reporting setting information is a semi-persistent CSI-RS resource. The CSI-RS resource and the CSI are activated, indicated, or triggered by a MAC CE signaling.

[0200] It is worth noting that the above figures are merely illustrative of embodiments of this application, and the application is not limited thereto. For example, the execution order between various operations can be appropriately adjusted, and other operations can be added or some operations can be removed. Those skilled in the art can make appropriate modifications based on the above description, and are not limited to the description in the above figures.

[0201] The above embodiments are merely illustrative examples of embodiments of this application, but this application is not limited thereto, and appropriate modifications can be made based on the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0202] In this embodiment, a network device sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to a terminal device. The network device receives the CSI reported by the terminal device. The CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information, and the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0203] Third aspect of the embodiments

[0204] This application provides an information processing apparatus. This apparatus may be, for example, a terminal device, or one or more components or parts configured within a terminal device; details identical to those in the first aspect of the embodiment will not be repeated.

[0205] Figure 4 is a schematic diagram of an information processing apparatus according to an embodiment of this application. As shown in Figure 4, the information processing apparatus 400 includes a receiving unit 401 and a sending unit 402.

[0206] The receiving unit 401 receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; the sending unit 402 reports the CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to the cell handover command for Layer 1 or Layer 2 mobility (LTM) triggered.

[0207] In some embodiments, the CSI-RS resource configuration information is at least related to candidate cell configuration.

[0208] In some embodiments, the CSI-RS resource configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0209] In some embodiments, the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and a CSI-RS resource set is associated with at least one or more index values ​​of candidate cells in the candidate cell configuration.

[0210] In some embodiments, the CSI reporting configuration information is at least related to the candidate cell configuration.

[0211] In some embodiments, the CSI reporting configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0212] In some embodiments, the CSI reporting settings information includes X reporting sub-configurations, each reporting sub-configuration being associated with at least one or more index values ​​of candidate cells in the candidate cell configuration, where X is an integer greater than or equal to 1.

[0213] In some embodiments, the CSI reporting settings information further includes common reporting information, which is related to the X reporting sub-configurations. The common reporting information includes codebook setting parameters, which include at least one of the following: codebook type, codebook sub-bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0214] In some embodiments, the reporting sub-configuration includes codebook setting parameters, which include at least one of the following: codebook type, codebook subband bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0215] In some embodiments, the receiving unit also receives the cell handover command, and the CSI reporting type is periodic CSI reporting. After the cell handover command is received, the sending unit reports CSI related to the target cell in the cell handover command; and / or, the sending unit does not report CSI unrelated to the target cell in the cell handover command; and / or, the sending unit ignores reporting CSI unrelated to the target cell in the cell handover command.

[0216] In some embodiments, the terminal device does not expect the CSI reporting type to be configured as periodic CSI reporting.

[0217] In some embodiments, the CSI reporting setting information includes offset information, and the reporting time corresponding to the offset information is at least later than the cell handover command.

[0218] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI is associated with the first CSI trigger state in the CSI trigger list configured in the higher-layer signaling.

[0219] In some embodiments, the CSI reporting type is semi-persistent or aperiodic CSI reporting, and the receiving unit also receives first information for activating, indicating or triggering the CSI, the first information being carried in at least one of the following: MAC CE signaling carrying the cell handover instruction, CSI request indication information based on DCI, and PDSCH channel carrying RAR uplink grant.

[0220] In some embodiments, the first information is related to a first CSI trigger state in a CSI trigger list configured in higher-layer signaling, and the first CSI trigger state is associated with the CSI.

[0221] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling does not exceed 2^Q, where Q is an integer configured in the higher-layer signaling.

[0222] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the first information indicates the selection of the first 2^Q CSI trigger states in the CSI trigger list.

[0223] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the subset selection indication of the trigger states in the CSI trigger list is performed through MAC CE signaling.

[0224] In some embodiments, the MAC CE signaling is MAC CE signaling carrying the cell handover instruction.

[0225] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI-RS resource associated with the CSI reporting setting information is a semi-persistent CSI-RS resource. The CSI-RS resource and the CSI are activated, indicated, or triggered by a MAC CE signaling.

[0226] It is worth noting that the above description only covers the components or modules relevant to this application, but this application is not limited thereto. The information processing apparatus may also include other components or modules, and for details regarding these components or modules, please refer to related technologies.

[0227] Furthermore, for simplicity, the above figures only exemplarily illustrate the connection relationships or signal flows between the various components or modules. However, those skilled in the art should understand that various related technologies, such as bus connections, can be employed. The aforementioned components or modules can be implemented using hardware facilities such as processors, memory, transmitters, and receivers; this application does not limit this implementation.

[0228] In this embodiment, the terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; it then reports a CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0229] Fourth aspect of the embodiment

[0230] This application provides an information processing apparatus. This apparatus may be, for example, a network device, or one or more components or parts configured within a network device; details identical to those in the embodiments of the first to third aspects will not be repeated.

[0231] Figure 5 is a schematic diagram of an information processing apparatus according to an embodiment of this application. As shown in Figure 5, the information processing apparatus 500 includes a sending unit 501 and a receiving unit 502.

[0232] The sending unit 501 sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device; the receiving unit 502 receives the CSI reported by the terminal device, wherein the CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information, and the CSI is related to the cell handover command for Layer 1 or Layer 2 mobility (LTM) triggered.

[0233] In some embodiments, the CSI-RS resource configuration information is at least related to candidate cell configuration.

[0234] In some embodiments, the CSI-RS resource configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0235] In some embodiments, the CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and a CSI-RS resource set is associated with at least one or more index values ​​of candidate cells in the candidate cell configuration.

[0236] In some embodiments, the CSI reporting configuration information is at least related to the candidate cell configuration.

[0237] In some embodiments, the CSI reporting configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

[0238] In some embodiments, the CSI reporting settings information includes X reporting sub-configurations, each reporting sub-configuration being associated with at least one or more index values ​​of candidate cells in the candidate cell configuration, where X is an integer greater than or equal to 1.

[0239] In some embodiments, the CSI reporting settings information further includes common reporting information, which is related to the X reporting sub-configurations. The common reporting information includes codebook setting parameters, which include at least one of the following: codebook type, codebook sub-bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0240] In some embodiments, the reporting sub-configuration includes codebook setting parameters, which include at least one of the following: codebook type, codebook subband bandwidth configuration parameters, and codebook subset restriction (CBSR).

[0241] In some embodiments, the sending unit further sends the cell handover command, and the CSI reporting type is periodic CSI reporting. After the cell handover command is sent, the receiving unit receives CSI related to the target cell in the cell handover command; and / or, the receiving unit does not receive CSI unrelated to the target cell in the cell handover command; and / or, the receiving unit ignores CSI unrelated to the target cell in the cell handover command.

[0242] In some embodiments, the CSI reporting type is not configured as periodic CSI reporting.

[0243] In some embodiments, the CSI reporting setting information includes offset information, and the reporting time corresponding to the offset information is at least later than the cell handover command.

[0244] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI is associated with the first CSI trigger state in the CSI trigger list configured in the higher-layer signaling.

[0245] In some embodiments, the CSI reporting type is semi-persistent or aperiodic CSI reporting, and the transmitting unit also transmits first information for activating, indicating or triggering the CSI, the first information being carried in at least one of the following: MAC CE signaling carrying the cell handover instruction, CSI request indication information based on DCI, and PDSCH channel carrying RAR uplink grant.

[0246] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling does not exceed 2^Q, where Q is an integer configured in the higher-layer signaling.

[0247] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the first information indicates the selection of the first 2^Q CSI trigger states in the CSI trigger list.

[0248] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the number of trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, and the subset selection indication of the trigger states in the CSI trigger list is performed through MAC CE signaling.

[0249] In some embodiments, the MAC CE signaling is MAC CE signaling carrying the cell handover instruction.

[0250] In some embodiments, the CSI reporting type is semi-persistent or non-periodic CSI reporting, and the CSI-RS resource associated with the CSI reporting setting information is a semi-persistent CSI-RS resource. The CSI-RS resource and the CSI are activated, indicated, or triggered by a MAC CE signaling.

[0251] It is worth noting that the above description only covers the components or modules relevant to this application, but this application is not limited thereto. The information processing apparatus may also include other components or modules, and for details regarding these components or modules, please refer to related technologies.

[0252] Furthermore, for simplicity, the above figures only exemplarily illustrate the connection relationships or signal flows between the various components or modules. However, those skilled in the art should understand that various related technologies, such as bus connections, can be employed. The aforementioned components or modules can be implemented using hardware facilities such as processors, memory, transmitters, and receivers; this application does not limit this implementation.

[0253] In this embodiment, a network device sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to a terminal device. The network device receives the CSI reported by the terminal device. The CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information, and the CSI is related to a cell handover command for Layer 1 or Layer 2 triggered mobility (LTM). By associating the CSI with the cell handover command for LTM, appropriate CSIs can be reported for LTM scenarios, which helps to accurately transmit data after cell handover.

[0254] Fifth aspect of the embodiment

[0255] This application also provides a communication system, including network equipment and terminal equipment.

[0256] In the embodiments of this application, the terminal device, as the sender of the CSI report, may include the apparatus described in the third aspect embodiment, and is configured to execute the method of the first aspect embodiment. Since the method has been described in detail in the first aspect embodiment, its contents are incorporated herein and will not be repeated.

[0257] In the embodiments of this application, the network device, as the receiving end of the CSI report, may include the apparatus described in the embodiments of the fourth aspect, and be configured to perform the method of the embodiments of the second aspect. Since the method has been described in detail in the embodiments of the first and second aspects, its contents are incorporated herein and will not be repeated.

[0258] In addition, the terminal device and the network device can also perform their respective regular operations, and the network device can also perform operations corresponding to the operations of the terminal device, such as the network device receiving information / signals from the terminal device, and / or the network device sending information / signals to the terminal device, the details of which are omitted here.

[0259] This application also provides a terminal device, which may be a UE, but this application is not limited to this and may also be other terminal devices.

[0260] Figure 6 is a schematic diagram of a terminal device according to an embodiment of this application. As shown in Figure 6, the terminal device 600 may include a processor 610 and a memory 620; the memory 620 stores data and programs and is coupled to the processor 610. It is worth noting that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunications functions or other functions.

[0261] In some embodiments, the functionality of the apparatus of the third aspect embodiment can be integrated into the processor 610, wherein the processor 610 can be configured to execute a program to implement the method as described in the first aspect embodiment, the contents of which are incorporated herein and will not be repeated here.

[0262] In other embodiments, the apparatus of the third aspect embodiment may be configured separately from the processor 610. For example, the apparatus of the third aspect embodiment may be configured as a chip connected to the processor 610, and the functions of the apparatus of the third aspect embodiment may be implemented through the control of the processor 610.

[0263] As shown in Figure 6, the terminal device 600 may further include: a communication module 630, an input unit 640, a display 650, and a power supply 660. The functions of these components are similar to those in the prior art and will not be described in detail here. It is worth noting that the terminal device 600 does not necessarily include all the components shown in Figure 6; these components are not essential. Furthermore, the terminal device 600 may also include components not shown in Figure 6, which can be referred to in related technologies.

[0264] This application also provides a network device, which may be, for example, a base station, but this application is not limited to this and may also be other network devices.

[0265] Figure 7 is a schematic diagram of the configuration of a network device according to an embodiment of this application. As shown in Figure 7, the network device 700 may include a processor 710 and a memory 720; the memory 720 is coupled to the processor 710. The memory 720 can store various data; in addition, it also stores information processing programs, and executes the programs under the control of the processor 710.

[0266] In some embodiments, the functionality of the apparatus of the fourth aspect embodiment can be integrated into the processor 710, wherein the processor 710 can be configured to execute a program to implement the method as described in the second aspect embodiment, the contents of which are incorporated herein and will not be repeated here.

[0267] In other embodiments, the apparatus of the fourth aspect embodiment may be configured separately from the processor 710. For example, the apparatus of the fourth aspect embodiment may be configured as a chip connected to the processor 710, and the functions of the apparatus of the fourth aspect embodiment may be implemented through the control of the processor 710.

[0268] In addition, as shown in Figure 7, the network device 700 may also include a transceiver 730 and an antenna 740. The functions of these components are similar to those in the prior art and will not be described again here. It is worth noting that the network device 700 does not necessarily include all the components shown in Figure 7; furthermore, the network device 700 may also include components not shown in Figure 7, which can be referred to in the prior art.

[0269] This application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to perform the method described in the first aspect of the embodiment.

[0270] This application also provides a storage medium storing a computer program, wherein the computer program causes a terminal device to perform the method described in the first aspect of the embodiment.

[0271] This application also provides a computer program product, which includes at least a computer program that, when executed by a processor, causes a terminal device to perform the method described in the first aspect of the embodiment.

[0272] This application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to perform the method described in the second aspect of the embodiment.

[0273] This application also provides a storage medium storing a computer program, wherein the computer program causes a network device to perform the method described in the second aspect of the embodiment.

[0274] This application also provides a computer program product, which includes at least a computer program that, when executed by a processor, causes a network device to perform the method described in the second aspect of the embodiments.

[0275] The apparatus and methods described above in this application can be implemented in hardware or in combination with software. This application relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to implement the various methods or steps described above. This application also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.

[0276] The methods / apparatus described in conjunction with the embodiments of this application can be directly embodied in hardware, software modules executed by a processor, or a combination of both. For example, one or more and / or combinations of one or more functional block diagrams shown in the figures can correspond to various software modules in a computer program flow, or to various hardware modules. These software modules can correspond to the various steps shown in the figures, respectively. These hardware modules can be implemented, for example, using a field-programmable gate array (FPGA) to embed these software modules.

[0277] The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, enabling the processor to read information from and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and storage medium can reside in an ASIC. The software module can be stored in the memory of a mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a high-capacity MEGA-SIM card or a high-capacity flash memory device, the software module can be stored in the MEGA-SIM card or the high-capacity flash memory device.

[0278] One or more and / or one or more combinations of functional blocks described in the accompanying drawings can be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any suitable combination thereof for performing the functions described herein. One or more and / or one or more combinations of functional blocks described in the accompanying drawings can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.

[0279] The present application has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present application. Those skilled in the art can make various modifications and variations to the present application based on its spirit and principles, and these modifications and variations are also within the scope of the present application.

[0280] The following notes are also included in relation to this application:

[0281] 1. An information processing method applied to a terminal device, the method comprising:

[0282] The terminal device receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from the network device; and

[0283] The terminal device reports CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to the cell handover command for mobility (LTM) triggered by layer 1 or layer 2.

[0284] 2. An information processing method applied to a network device, the method comprising:

[0285] The network device sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device; and

[0286] The network device receives the CSI reported by the terminal device. The CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information. The CSI is related to the cell handover command for mobility (LTM) triggered by Layer 1 or Layer 2.

[0287] 3. A terminal device, comprising a memory and a processor, the memory storing a computer program and the processor being configured to execute the computer program to implement the method as described in Appendix 1.

[0288] 4. A network device comprising a memory and a processor, the memory storing a computer program and the processor being configured to execute the computer program to implement the method as described in Appendix 2.

[0289] 5. A computer program product comprising at least a computer program that, when executed by a processor, causes a terminal device to perform the method as described in Appendix 1.

[0290] 6. A computer program product comprising at least a computer program that, when executed by a processor, causes a network device to perform the method as described in Appendix 2.

Claims

1. An information processing apparatus, configured in a terminal device, the apparatus comprising: The receiving unit receives Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information from network devices; as well as The transmitting unit reports a CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information, wherein the CSI is related to a cell handover command for mobility (LTM) triggered at Layer 1 or Layer 2.

2. The apparatus according to claim 1, wherein, The CSI-RS resource configuration information is at least related to the candidate cell configuration.

3. The apparatus according to claim 2, wherein, The CSI-RS resource configuration information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

4. The apparatus according to claim 2 or 3, wherein, The CSI-RS resource configuration information is used to configure at least one CSI-RS resource set, and a CSI-RS resource set is associated with at least one or more index values ​​of candidate cells in the candidate cell configuration.

5. The apparatus according to claim 1, wherein, The CSI reporting settings information is at least related to the candidate cell configuration.

6. The apparatus according to claim 5, wherein, The CSI reporting settings information includes at least the index values ​​of one or more candidate cells in the candidate cell configuration.

7. The apparatus according to claim 5 or 6, wherein, The CSI reporting settings include X reporting sub-configurations, each reporting sub-configuration being associated with at least one or more index values ​​of candidate cells in the candidate cell configuration, where X is an integer greater than or equal to 1.

8. The apparatus according to claim 7, wherein, The CSI reporting settings also include common reporting information, which is related to the X reporting sub-configurations. The common reporting information includes codebook setting parameters, which include at least one of the following: codebook type, codebook sub-bandwidth configuration parameters, and codebook subset restriction (CBSR).

9. The apparatus according to claim 7, wherein, The reporting sub-configuration includes codebook setting parameters, which include at least one of the following: codebook type, codebook subband bandwidth configuration parameters, and codebook subset restriction (CBSR).

10. The apparatus according to claim 2 or 5, wherein, The receiving unit also receives the cell handover command. The CSI reporting type is periodic CSI reporting. After the cell handover command is received, the sending unit reports the CSI related to the target cell in the cell handover command. And / or, the transmitting unit does not report CSIs unrelated to the target cell in the cell handover command; and / or, the transmitting unit ignores reporting CSIs unrelated to the target cell in the cell handover command; And / or, The terminal device does not expect the CSI reporting type to be configured as periodic CSI reporting.

11. The apparatus according to claim 10, wherein, The CSI reporting settings information includes offset information, and the reporting time corresponding to the offset information is at least later than the cell handover command.

12. The apparatus according to claim 1, wherein, The CSI reporting type is semi-continuous or non-periodic CSI reporting, and the CSI is associated with the first CSI trigger status in the CSI trigger list configured in the higher-layer signaling. and / or The CSI reporting type is semi-persistent or aperiodic CSI reporting. The receiving unit also receives first information for activating, indicating or triggering the CSI. The first information carries at least one of the following: MAC CE signaling carrying the cell handover instruction, CSI request indication information based on DCI, and PDSCH channel carrying RAR uplink grant.

13. The apparatus according to claim 12, wherein, The first information is related to the first CSI trigger status in the CSI trigger list configured in the higher-level signaling, and the first CSI trigger status is associated with the CSI.

14. The apparatus according to claim 13, wherein, The number of CSI trigger states in the CSI trigger list configured in the higher-level signaling shall not exceed 2^Q, where Q is an integer configured in the higher-level signaling.

15. The apparatus according to claim 13, wherein, If the number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling, the first information indicates the selection of the first 2^Q CSI trigger states in the CSI trigger list. or The number of CSI trigger states in the CSI trigger list configured in the higher-layer signaling exceeds 2^Q, where Q is an integer configured in the higher-layer signaling. The MAC CE signaling is used to indicate the selection of a subset of the CSI trigger states in the CSI trigger list.

16. The apparatus according to claim 12, wherein, The CSI reporting type is semi-persistent or non-periodic CSI reporting. The CSI-RS resource associated with the CSI reporting setting information is a semi-persistent CSI-RS resource. The CSI-RS resource and the CSI are activated, indicated, or triggered by a MAC CE signaling.

17. An information processing apparatus, configured in a network device, the apparatus comprising: The transmitting unit sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device; as well as The receiving unit receives the CSI reported by the terminal device. The CSI is determined based on the CSI-RS resource configuration information and / or the CSI reporting setting information. The CSI is related to the cell handover command for mobility (LTM) triggered by layer 1 or layer 2.

18. The apparatus according to claim 17, wherein, The sending unit also sends the cell handover command, and the CSI reporting type is periodic CSI reporting. After the cell handover command is sent, the receiving unit receives the CSI related to the target cell in the cell handover command. And / or, the receiving unit does not receive CSIs that are unrelated to the target cell in the cell handover command; And / or, the receiving unit ignores CSIs that are irrelevant to the target cell in the cell handover command; And / or, the CSI reporting type is not configured for periodic CSI reporting.

19. The apparatus according to claim 17, wherein, The CSI reporting type is semi-persistent or aperiodic CSI reporting. The sending unit also sends first information for activating, indicating or triggering the CSI. The first information carries at least one of the following: MAC CE signaling carrying the cell handover instruction, CSI request indication information based on DCI, and PDSCH channel carrying RAR uplink grant.

20. A communication system, the system comprising: Network equipment and terminal equipment, The network device sends Channel State Information Reference Signal (CSI-RS) resource configuration information and / or Channel State Information (CSI) reporting setting information to the terminal device, and receives the CSI reported by the terminal device; The terminal device receives the CSI-RS resource configuration information and / or the CSI reporting setting information, and reports CSI based on the CSI-RS resource configuration information and / or the CSI reporting setting information. The CSI is related to the cell handover command for mobility (LTM) triggered by Layer 1 or Layer 2.

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