CSI Reporting Method, Terminal, and Network Side Device

Abstract

The embodiments of the present application disclose a CSI reporting method, a terminal, and a network-side device, which can solve the problem that a terminal in a non-connected state cannot perform CSI reporting. The method includes: the terminal sends a CSI report through the PUSCH of MSG-A in the random access process. In the embodiments of the present application, the terminal can perform CSI measurement and reporting. Thus, the network-side device can obtain channel state information as early as possible and schedule the terminal using more accurate parameters, improving communication efficiency.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a method for reporting channel state information (CSI), a terminal, and a network-side device. Background Art

[0002] Channel State Information-Reference Signal (CSI-RS) can be used for terminal synchronization, CSI measurement, radio resource management (RRM) measurement, radio link monitoring, beam failure detection, beam management, and automatic gain control (AGC), etc.

[0003] In the related art, CSI-RS can only be configured and used by connected terminals. Connected terminals can perform measurements based on CSI-RS and report CSI. For non-connected (idle / inactive) terminals, CSI reporting is currently not possible. Summary of the Invention

[0004] The objective of the embodiments of this application is to provide a CSI reporting method, a terminal, and a network-side device, which can solve the problem that non-connected terminals cannot report CSI.

[0005] To solve the above technical problem, this application is implemented as follows:

[0006] In a first aspect, a CSI reporting method is provided. The method includes: a terminal sends a CSI report through a Physical Uplink Shared Channel (PUSCH) of MSG-A during a random access procedure.

[0007] In a second aspect, a CSI reporting method is provided. The method includes: a network-side device receives a CSI report through a PUSCH of MSG-A during a random access procedure.

[0008] In a third aspect, a terminal is provided, including: a sending module, configured to send a CSI report through a PUSCH of MSG-A during a random access procedure.

[0009] In a fourth aspect, a network-side device is provided, including: a receiving module, configured to receive a CSI report through a PUSCH of MSG-A during a random access procedure.

[0010] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the method described in the first aspect is implemented.

[0011] In a sixth aspect, a network-side device is provided, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor. When the program or instructions are executed by the processor, the method described in the second aspect is implemented.

[0012] In a seventh aspect, a readable storage medium is provided, on which a program or instructions are stored. When the program or instructions are executed by a processor, the method described in the first aspect is implemented, or the method described in the second aspect is implemented.

[0013] In an eighth aspect, a chip is provided, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0014] In an embodiment of the present application, the terminal can send a CSI report through the PUSCH of MSG-A during the random access process, enabling the terminal to perform CSI measurement and reporting. Thus, the network-side device can obtain channel state information earlier and schedule the terminal using more accurate parameters, improving communication efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a block diagram of a wireless communication system according to an embodiment of the present application;

[0016] Figure 2 is a schematic flowchart of a CSI reporting method according to an embodiment of the present application;

[0017] Figure 3 is a schematic flowchart of a CSI reporting method according to another embodiment of the present application;

[0018] Figure 4 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0019] Figure 5 is a schematic structural diagram of a network-side device according to another embodiment of the present application;

[0020] Figure 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0021] Figure 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0022] Figure 8 It is a schematic structural diagram of a network-side device according to an embodiment of the present application. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0024] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0025] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies. However, the following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, although these technologies can also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

[0026] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can also be referred to as a terminal device or a user terminal (User Equipment, UE). The terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. Terminal-side devices. Wearable devices include: bracelets, earphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can be a base station or a core network. Among them, the base station can be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a next-generation node B (gNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a Transmitting Receiving Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0027] Next, with reference to the accompanying drawings, a method for reporting channel state information (Channel State Information, CSI), a terminal, and a network-side device provided by embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0028] As Figure 2 shown, an embodiment of the present application provides a CSI reporting method 200. This method can be executed by a terminal. In other words, this method can be executed by software or hardware installed in the terminal. The method includes the following steps.

[0029] S202: The terminal sends a CSI report through the Physical Uplink Shared Channel (PUSCH) of MSG-A during the random access procedure.

[0030] The random access procedure mentioned in this embodiment may be a two-step random access procedure. During the two-step random access procedure, the terminal first sends MSG-A, which consists of two parts: a preamble of the Physical Random Access Channel (PRACH) and PUSCH. In addition to the CSI report, the transmission information of PUSCH may also include information such as the terminal identifier (e.g., UE-ID).

[0031] The above CSI report may be measured by the terminal in a non-connected state (such as the idle state or the inactive state) based on at least one of the Channel State Information-Reference Signal (CSI-RS) and the Synchronization Signal / PBCH Block (SSB). That is, before the terminal sends the CSI report through the PUSCH of MSG-A during the random access procedure, the terminal is in the idle state or the inactive state.

[0032] The above CSI report may include at least one of the following: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), Rank Indication (RI), Layer1-Reference Signal Receiving Power (RSRP, L1-RSRP), and CSI reference signal resource indicator.

[0033] Optionally, the above CSI report is a CSI report based on RI = 1, that is, this CSI report is calculated based on layer-1 transmission.

[0034] Optionally, the above CSI report is a broadband CSI report. In other examples, the above CSI report is a sub-band-based report, and the frequency-domain width of each sub-band is the number of preset Resource Blocks (RBs); the above CSI report is a report based on the M sub-bands with the best or worst signal quality.

[0035] Optionally, the above CSI report is measured by the terminal using the SSB or CSI-RS as the interference measurement resource; or the above CSI report is measured by the terminal using the SSB that satisfies the Quasi Co-Location (QCL) relationship with the CSI-RS as the interference measurement resource; or the above CSI report is measured by the terminal using the CSI-RS that satisfies the QCL relationship with the SSB as the interference measurement resource.

[0036] The measurement resources corresponding to the CSI report mentioned in each embodiment of the present application include one of the following:

[0037] 1) The CSI-RS that satisfies the QCL relationship with the SSB selected by the terminal, and the SSB is associated with the MSG-A. That is, the CSI measurement resource in this example is: the CSI-RS that satisfies the QCL relationship with the SSB selected by the terminal for initiating the RACH process.

[0038] The criterion for the terminal to select the Physical Random Access Channel Transmission Opportunity (PRACH transmission occasion, abbreviated as RO) resource is: the terminal selects the RO resource corresponding to the SSB with a Reference Signal Receiving Power (RSRP) higher than the preset threshold and initiates the PRACH on the corresponding RO resource. And different SSBs can be associated with different ROs and / or different preamble sequences. Therefore, the above-mentioned SSB being associated with MSG-A can be that the SSB is associated with the PRACH (such as preamble) in MSG-A, or the SSB is associated with the PUSCH in MSG-A.

[0039] 2) The CSI-RS indicated by the network-side device.

[0040] Optionally, the network-side device can indicate the CSI-RS mentioned in 2) above through at least one of the following: system information, control channel, paging control channel, signaling in the Physical Downlink Shared Channel (PDSCH) scheduled by the paging control channel, Radio Resource Control (RRC) signaling, Media Access Control Control Element (MAC-CE) command, etc.

[0041] In the CSI reporting method provided by the embodiments of the present application, the terminal can send the CSI report through the PUSCH of MSG-A in the random access process, so that the terminal can perform CSI measurement and reporting. Thus, the network-side device can obtain the channel state information earlier and use more accurate parameters to schedule the terminal, improving the communication efficiency.

[0042] In Embodiment 200, it is mentioned that the terminal can send a CSI report through the PUSCH of MSG-A. In fact, the terminal may perform S202 according to the configuration of the network-side device or when certain conditions are met.

[0043] In one example, before S202, the terminal may receive configuration information from the network-side device, and this configuration information is used to configure the terminal to send a CSI report through the PUSCH of MSG-A in the random access procedure. In this way, S202 may specifically be to send a CSI report through the PUSCH of MSG-A in the random access procedure according to the configuration of the network-side device (such as according to the above configuration information).

[0044] In another example, a terminal in a non-connected state may, when certain preset conditions are met, send a CSI report through the PUSCH of MSG-A in the random access procedure; where the above preset conditions include at least one of the following: the measured Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), or pathloss meets a first condition; the Transport Blocks Size (TBS) or code rate of the actually transmitted PUSCH of MSG-A meets a second condition.

[0045] Specifically, for example, the above preset conditions may be at least one of the following: the measured RSRP is lower than or higher than a certain preset value, the measured RSRQ is lower than or higher than a certain preset value, the measured pathloss is lower than or higher than a certain preset value, etc. Again, for example, the above preset conditions may be at least one of the following: the TBS of the actually transmitted PUSCH of MSG-A is less than a certain predetermined value, the code rate of the actually transmitted PUSCH of MSG-A is less than a certain predetermined value, etc. It can be understood that when the TBS is less than a certain predetermined value or the code rate of the actually transmitted PUSCH is less than a certain predetermined value, it usually means that the PUSCH of MSG-A still has remaining resources, and through these remaining resources, the transmission of the CSI report can be achieved, thereby improving the resource utilization rate.

[0046] Regarding the sending of the CSI report through the PUSCH of MSG-A mentioned in the foregoing embodiments, optionally, the above PUSCH corresponds to first indication information, and this first indication information is used to indicate to the network-side device that this PUSCH includes (or carries) a CSI report.

[0047] In one example, the above first indication information is indicated by preset bits in the PUSCH.

[0048] In another example, the first indication information described above is a preset logical channel identifier.

[0049] In yet another example, the first indication information described above is a preset preamble. Both the preset preamble and the above-mentioned PUSCH are included in MSG-A. When the network-side device receives the preset preamble, it can determine that the PUSCH includes a CSI report.

[0050] Optionally, the preamble in MSG-A used in the random access process mentioned in the foregoing embodiments is specific. That is, when the terminal transmits a CSI report in MSG-A, it uses a specific preamble.

[0051] In one example, the specific preamble is related to an SSB or CSI-RS, and the SSB and CSI-RS are associated with the random access channel opportunity (RO) for transmitting the specific preamble. Optionally, the specific preambles corresponding to different SSBs are different, and / or the specific preambles corresponding to different CSI-RSs are different.

[0052] In another example, the specific preamble described above can also be indicated by the network-side device. For example, the network-side device indicates the number of the specific preamble in system information or RRC signaling.

[0053] Optionally, the CSI reports mentioned in the embodiments of the present application can be transmitted in an independent coding manner with the first message, where the first message is a message other than the CSI report in the PUSCH.

[0054] In this example, before S202, the terminal can also receive second indication information, which is used to indicate the coding rate of the above-mentioned CSI report. The second indication information can be system information or RRC signaling, and the network-side device can specifically indicate it in the form of beta-offset. The beta-offset is a parameter for determining the transmission resources and coding rate of the CSI.

[0055] In other examples, when the network-side device does not configure the second indication information for the terminal, or when the second indication information is a first specific value (such as beta-offset being 0), the terminal does not send the CSI report through the PUSCH.

[0056] Optionally, in the foregoing embodiments, since the network side device may not be able to successfully detect the PUSCH of MSG-A. For example, if the network only detects the preamble in MSG-A and does not detect the PUSCH, the network side device will not send MSG-B to the terminal, but instead send a Random Access Response (RAR).

[0057] After the terminal detects the RAR, it needs to send a PUSCH according to the indication in the RAR, that is, MSG3. Therefore, when the terminal transmits a CSI report in the PUSCH of MSG-A, and the terminal does not detect the MSG-B - Radio Network Temporary Identity (RNTI), but detects a Physical Downlink Control Channel (PDCCH) scrambled with a RandomAccess-Radio Network Temporary Identity (RA-RNTI), the RA-RNTI corresponds to the preamble used by the terminal to transmit MSG-A and the time-frequency resources used for transmission. The terminal transmits a CSI report in the PUSCH scheduled by the RAR. Alternatively, whether to perform CSI reporting is still indicated by the network side device, and the network indicates whether the terminal needs to transmit a CSI report in the scheduled PUSCH (i.e., MSG3) through the CSI request field in the uplink grant of the RAR.

[0058] Based on the above introduction, the foregoing embodiments further include the following steps: sending the CSI report in MSG3 when at least one of the following conditions is met:

[0059] 1) The CSI report is sent through the PUSCH of the MSG-A, that is, the method of S202 is executed.

[0060] 2) The PDCCH scrambled with MSG-B-RNTI is not detected.

[0061] 3) The PDCCH scrambled with RA-RNTI is detected, and the RA-RNTI corresponds to the time-frequency resources of the preamble and / or RO sent during the random access process.

[0062] 4) A RA-RNTI scrambled PDCCH is detected, and the System Frame Number (SFN) information contained in the PDCCH corresponds to the system frame number where the preamble sent during the random access procedure is located. The above system frame number information may be the least significant bits of the system frame number and may be 2 bits.

[0063] 5) The CSI request field in the RAR indicates that the terminal performs CSI reporting, and the RAR is scheduled by a RA-RNTI scrambled PDCCH.

[0064] 6) The network device indicates in the high-layer signaling that the terminal performs CSI reporting. For example, the network device configures a beta-offset, and the beta-offset is a specific value, such as the beta-offset is greater than or equal to 1.

[0065] Optionally, the CSI reports sent in MSG3 and the CSI reports sent in the PUSCH of MSG-A use the same transmission parameters, and the transmission parameters include at least one of the following:

[0066] 1) Whether the CSI report is independently encoded for transmission.

[0067] 2) The parameter of the coding rate for CSI report transmission. For example, MCS, beta-offset, etc.

[0068] To illustrate the CSI reporting method provided in the embodiments of the present application in detail, the following will be described in conjunction with several specific embodiments.

[0069] Embodiment 1

[0070] In this embodiment, the terminal sends a CSI report through the PUSCH of MSG-A in the two-step random access procedure.

[0071] In this embodiment, the network device may, through high-layer signaling, such as system information or RRC signaling, instruct the terminal to report a CSI report in the PUSCH of MSG-A. Or whether the terminal reports a CSI report in the PUSCH of MSG-A is determined according to a preset condition. For example, if the RSRQ, RSRP, or pathloss value measured by the terminal is lower or higher than a preset threshold, the terminal includes the above CSI report in MSG-A.

[0072] In this embodiment, the CSI report reported by the terminal includes at least one of the following: CQI, PMI, RI, L1-RSRP, CRI, etc., and the specific content reported can be configured by system information or RRC signaling.

[0073] Optionally, the CQI and PMI in the above CSI report may be reported based on RI = 1.

[0074] Optionally, the above CSI report may be a broadband report; or a sub-band report, where the frequency-domain width of each sub-band is a preset number of RBs; or a report of M best or worst sub-bands.

[0075] In this embodiment, the CSI measurement resource for the CSI report may be an SSB and / or a CSI-RS, or the CSI-RS is an SSB that is quasi-co-located (QCL) with the SSB.

[0076] This CSI-RS may be network-configured, or a CSI-RS indicated to be sent by a paging message, where the above paging message includes a paging PDCCH or a paging PDSCH.

[0077] In this embodiment, the interference measurement resource for the CSI report may be an SSB and / or a CSI-RS.

[0078] The above-mentioned CSI measurement resource or interference measurement resource may be configured by the network through system information or RRC signaling.

[0079] In this embodiment, when the terminal reports CSI, it may simultaneously include a CSI report identifier (corresponding to the first indication information mentioned above), for example, a preset bit, or logical channel information, etc., for the network-side device to determine that the PUSCH contains a CSI report.

[0080] Optionally, if the CSI report is included in MSG-A or MSG-3, and MSG-A or MSG-3 is a retransmission, the CSI report may be included only in some of MSG-A or MSG-3, for example, the last n transmissions, 1 ≤ n ≤ N, where N is the number of times the network indicates MSG-A or MSG-3 to be retransmitted.

[0081] Embodiment 2

[0082] In this embodiment, the terminal sends a CSI report through the PUSCH of MSG-A in the two-step random access procedure.

[0083] For the preamble configured by the network-side device, the network-side device indicates some of the preambles, for example, the index of some preambles indicated by the network. If the preamble sent by the terminal belongs to the indicated part of the preambles, a CSI report may be transmitted in MSG-A; otherwise, no CSI report is transmitted.

[0084] Optionally, the preambles associated with different SSBs or CSI-RSs can be different. For example, the sets of preamble indices associated with each SSB or CSI-RS can be different. For example, a cell has 4 SSBs or CSI-RSs, and the associated preamble indices are as follows: the preamble index associated with SSB#0 is 0 - 16; the preamble index associated with SSB#1 is 17 - 32; the preamble index associated with SSB#3 is 33 - 48; the preamble index associated with SSB#4 is 49 - 64. Among them, for SSB#0, the preamble indices from 0 to (X - 1) associated with SSB#0 are the preamble indices for which CSI reporting is not performed, and the preamble indices from X to Y associated with SB#0 correspond to the preamble indices for which CSI reporting is performed, where X < Y ≤ 16.

[0085] Optionally, different preamble indices are used to correspond to different sets of CSI reporting amounts. For example, the first preamble set corresponds to CQI and PMI reporting, and the second preamble set corresponds to L1-RSRP reporting, etc.

[0086] Embodiment 3

[0087] In this embodiment, the terminal sends a CSI report through the PUSCH of MSG-A in the two-step random access procedure.

[0088] In this embodiment, the CSI reporting in MSG-A by the terminal can be cascade-coded together with other parts of MSG-A or independently coded, and the coding rate is indicated by higher-layer signaling. In the case of independent coding, the network can indicate the beta-offset value corresponding to the CSI, which is used to determine the resource size occupied by the CSI in MSG-A, such as the number of symbols corresponding to the CSI.

[0089] Since the network-side device may not be able to successfully detect the PUSCH of MSG-A. For example, the network-side device only detects the preamble in MSG-A and does not detect the PUSCH, then the network-side device will not transmit MSG-B to the terminal but send a RAR.

[0090] After the terminal detects the RAR, it needs to send a PUSCH according to the indication in the RAR, that is, MSG3. Therefore, when the terminal transmits a CSI report in MSG-A and the terminal does not detect the MSGB-RNTI but detects a PDCCH scrambled with the RA-RNTI, the RA-RNTI corresponds to the preamble used by the terminal to transmit MSG-A and the time-frequency resources used for the transmission.

[0091] The terminal transmits CSI reports in the PUSCH scheduled by the RAR. Or whether to report is still indicated by the network. The network device indicates whether the terminal needs to transmit CSI reports in the scheduled PUSCH (i.e., MSG3) through the CSI request field in the UL grant of the RAR.

[0092] Preferably, the CSI report in the PUSCH scheduled by the RAR uses the same coding parameters as in MSG-A, such as the same code rate or the same beta-offset. Or these parameters are independent parameters configured by the network device.

[0093] Combined with the above Figure 2 The CSI reporting method according to the embodiments of the present application is described in detail. Next, the CSI reporting method according to another embodiment of the present application will be described in combination with Figure 3 The interaction between the network device and the terminal described from the perspective of the network device is the same as the description on the terminal side in the method shown in Figure 2 To avoid repetition, relevant descriptions are appropriately omitted.

[0094] Figure 3 is a schematic flowchart of the implementation process of the CSI reporting method according to the embodiments of the present application, which can be applied to the network device. As shown in Figure 3 As shown, the method 300 includes:

[0095] S302: The network device receives CSI reports through the PUSCH of MSG-A in the random access process.

[0096] In the CSI reporting method provided by the embodiments of the present application, the terminal can send CSI reports through the PUSCH of MSG-A in the random access process, enabling the terminal to perform CSI measurement and reporting. Thus, the network device can obtain channel state information earlier and use more accurate parameters to schedule the terminal, improving communication efficiency.

[0097] Optionally, as an embodiment, the method further includes sending configuration information for configuring the terminal to send CSI reports through the PUSCH of MSG-A in the random access process.

[0098] Optionally, as an embodiment, the measurement resources corresponding to the CSI report include one of the following:

[0099] CSI-RS that satisfies the QCL relationship with the SSB selected by the terminal, where the SSB is associated with the MSG-A;

[0100] CSI-RS indicated by the network device.

[0101] Optionally, as an embodiment, the method further includes: indicating the CSI-RS by at least one of the following: system information, control channel, paging control channel, signaling in the PDSCH scheduled by the paging control channel, RRC signaling, MAC-CE command.

[0102] Optionally, as an embodiment, the PUSCH corresponds to first indication information, and the method further includes: determining, according to the first indication information, that the PUSCH includes the CSI report.

[0103] Optionally, as an embodiment, the first indication information is indicated by a preset bit in the PUSCH; or the first indication information is a preset logical channel identifier.

[0104] Optionally, as an embodiment, the first indication information is a preset random access preamble.

[0105] Optionally, as an embodiment, the method further includes: sending second indication information, where the second indication information is used to indicate the code rate of the CSI report; where the CSI report and the first message are transmitted in an independently encoded manner, and the first message is a message other than the CSI report in the PUSCH.

[0106] Optionally, as an embodiment, the method further includes: receiving the CSI report in MSG3, and the CSI report received in MSG3 is sent by the terminal when at least one of the following conditions is met:

[0107] The CSI report is sent through the PUSCH of the MSG-A;

[0108] A physical downlink control channel (PDCCH) scrambled by a MSG-B - radio network temporary identity (RNTI) is not detected;

[0109] A PDCCH scrambled by a random access radio network temporary identity (RA-RNTI) is detected, and the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent in the random access process;

[0110] A PDCCH scrambled by a RA-RNTI is detected, and the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent in the random access process is located;

[0111] A CSI request field in a random access response (RAR) indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled by a RA-RNTI;

[0112] The network-side device indicates to the terminal to perform CSI reporting in the high-layer signaling.

[0113] Figure 4 is a schematic structural diagram of a terminal according to an embodiment of the present application, as Figure 4 shown, the terminal 400 includes: a sending module 402, which can be used to send a CSI report through the PUSCH of MSG-A in the random access process.

[0114] In the embodiment of the present application, the terminal can send a CSI report through the PUSCH of MSG-A in the random access process, so that the terminal can perform CSI measurement and reporting. Thus, the network-side device can obtain channel state information earlier and use more accurate parameters to schedule the terminal, improving communication efficiency.

[0115] Optionally, as an embodiment, the sending module 402 can be used for one of the following:

[0116] Send a CSI report through the PUSCH of MSG-A in the random access process according to the configuration of the network-side device;

[0117] Send a CSI report through the PUSCH of MSG-A in the random access process when a preset condition is met; where the preset condition includes at least one of the following: the measured reference signal received power RSRP, reference signal received quality RSRQ, or path loss satisfies a first condition; the transport block size TBS or code rate actually transmitted by the PUSCH of MSG-A satisfies a second condition.

[0118] Optionally, as an embodiment, the measurement resource corresponding to the CSI report includes one of the following:

[0119] Channel state information reference signal CSI-RS that has a quasi-co-location QCL relationship with the synchronization and broadcast block SSB selected by the terminal, and the SSB is associated with MSG-A;

[0120] CSI-RS indicated by the network-side device.

[0121] Optionally, as an embodiment, the network-side device indicates the CSI-RS through at least one of the following: system information, control channel, paging control channel, signaling in the physical downlink shared channel PDSCH scheduled by the paging control channel, radio resource control RRC signaling, media access control control element MAC-CE command.

[0122] Optionally, as an embodiment,

[0123] The CSI report is CSI reporting based on a rank indicator RI = 1; or

[0124] The CSI report is a broadband-based CSI report.

[0125] Optionally, as an embodiment, the CSI report includes at least one of the following: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), RI, Layer 1 Reference Signal Received Power (L1-RSRP), and CSI Reference Signal Resource Indicator.

[0126] Optionally, as an embodiment,

[0127] the CSI report is measured by the terminal using the SSB or CSI-RS as an interference measurement resource; or

[0128] the CSI report is measured by the terminal using the SSB that has a Quasi-Co-Location (QCL) relationship with the CSI-RS as an interference measurement resource; or

[0129] the CSI report is measured by the terminal using the CSI-RS that has a QCL relationship with the SSB as an interference measurement resource.

[0130] Optionally, as an embodiment, the PUSCH corresponds to first indication information, and the first indication information is used to indicate that the PUSCH includes the CSI report.

[0131] Optionally, as an embodiment, the first indication information is indicated by a preset bit in the PUSCH; or the first indication information is a preset logical channel identifier.

[0132] Optionally, as an embodiment, the first indication information is a preset random access preamble.

[0133] Optionally, as an embodiment, the preamble of MSG-A in the random access procedure is specific, where the preamble is related to the SSB or CSI-RS.

[0134] Optionally, as an embodiment, the CSI report and the first message are transmitted in an independently encoded manner, and the first message is a message other than the CSI report in the PUSCH.

[0135] Optionally, as an embodiment, the terminal 400 further includes a receiving module, which can be used to: receive second indication information, and the second indication information is used to indicate the code rate of the CSI report.

[0136] Optionally, as an embodiment, when the network side device does not configure the second indication information for the terminal, or when the second indication information is a first specific value, the terminal does not send the CSI report through the PUSCH.

[0137] Optionally, as an embodiment, the sending module 402 may be configured to send the CSI report in MSG3 when at least one of the following conditions is met:

[0138] The CSI report has been sent via the PUSCH of the MSG-A;

[0139] A physical downlink control channel PDCCH scrambled by a MSG-B - radio network temporary identity RNTI has not been detected;

[0140] A PDCCH scrambled by a random access radio network temporary identity RA-RNTI has been detected, and the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent during the random access process;

[0141] A PDCCH scrambled by a RA-RNTI has been detected, and the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent during the random access process is located;

[0142] The CSI request field in the random access response RAR indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled by a RA-RNTI;

[0143] The network side device indicates in the high-layer signaling that the terminal performs CSI reporting.

[0144] Optionally, as an embodiment, the CSI report sent in the MSG3 and the CSI report sent in the PUSCH of the MSG-A adopt the same transmission parameters, where the transmission parameters include at least one of the following:

[0145] Whether the CSI report is independently encoded for transmission;

[0146] The parameter of the code rate for the CSI report transmission.

[0147] Optionally, as an embodiment, before sending the CSI report via the PUSCH of MSG-A during the random access process, the terminal is in an idle state or an inactive state.

[0148] The terminal 400 according to the embodiment of the present application may refer to the process of method 200 corresponding to the embodiment of the present application. Moreover, each unit / module in the terminal 400 and the above other operations and / or functions respectively implement the corresponding processes in method 200 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described herein again.

[0149] The terminal in the embodiments of the present application may also be a component, an integrated circuit, or a chip in the terminal. The terminal may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.

[0150] The terminal in the embodiments of the present application may be a device with an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0151] The terminal provided by the embodiments of the present application can implement Figure 2 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0152] Figure 5 is a schematic structural diagram of a network-side device according to an embodiment of the present application. As Figure 5 shown, the network-side device 500 includes:

[0153] A receiving module 502, which can be used to receive a CSI report through the PUSCH of MSG-A in the random access process.

[0154] In the embodiments of the present application, the terminal can send a CSI report through the PUSCH of MSG-A in the random access process, enabling the terminal to perform CSI measurement and reporting. Thus, the network-side device can obtain channel state information earlier and use more accurate parameters to schedule the terminal, improving communication efficiency.

[0155] Optionally, as an embodiment, the network-side device 500 further includes a sending module, which can be used to send configuration information for configuring the terminal to send a CSI report through the PUSCH of MSG-A in the random access process.

[0156] Optionally, as an embodiment, the measurement resource corresponding to the CSI report includes one of the following:

[0157] A CSI-RS that satisfies the QCL relationship with the SSB selected by the terminal, where the SSB is associated with the MSG-A;

[0158] A CSI-RS indicated by the network-side device.

[0159] Optionally, as an embodiment, the network - side device 500 further includes a sending module, which can be used to indicate the CSI - RS by at least one of the following: system information, control channel, paging control channel, signaling in the PDSCH scheduled by the paging control channel, RRC signaling, MAC - CE command.

[0160] Optionally, as an embodiment, the PUSCH corresponds to first indication information. The receiving module 502 can further be used to determine that the PUSCH includes the CSI report according to the first indication information.

[0161] Optionally, as an embodiment, the first indication information is indicated by preset bits in the PUSCH; or the first indication information is a preset logical channel identifier.

[0162] Optionally, as an embodiment, the first indication information is a preset random access preamble.

[0163] Optionally, as an embodiment, the network - side device 500 further includes a sending module, which can be used to send second indication information, where the second indication information is used to indicate the code rate of the CSI report; wherein, the CSI report and the first message are transmitted in an independently - coded manner, and the first message is a message other than the CSI report in the PUSCH.

[0164] Optionally, as an embodiment, the receiving module 502 can further be used to receive the CSI report in MSG3. The CSI report received in MSG3 is sent by the terminal when meeting at least one of the following conditions:

[0165] The CSI report is sent through the PUSCH of the MSG - A;

[0166] The physical downlink control channel (PDCCH) scrambled by the MSG - B - radio network temporary identity (RNTI) is not detected;

[0167] The PDCCH scrambled by the random access radio network temporary identity (RA - RNTI) is detected, and the RA - RNTI corresponds to the time - frequency resource of the preamble and / or RO sent during the random access process;

[0168] The PDCCH scrambled by the RA - RNTI is detected, and the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent during the random access process is located;

[0169] The CSI request field in the random access response (RAR) indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled with a RA-RNTI;

[0170] The network device indicates to the terminal to perform CSI reporting in higher layer signaling.

[0171] The network device 500 according to the embodiment of the present application may refer to the process of method 300 corresponding to the embodiment of the present application. Moreover, each unit / module in the network device 500 and the above other operations and / or functions respectively implement the corresponding processes in method 300, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described herein again.

[0172] Optionally, as Figure 6 shown, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, a program or instruction stored on the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, when the program or instruction is executed by the processor 601, it implements each process of the above CSI reporting method embodiment, and can achieve the same technical effect. When the communication device 600 is a network device, when the program or instruction is executed by the processor 601, it implements each process of the above CSI reporting method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described herein again.

[0173] Figure 7 It is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0174] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710 and other components.

[0175] Those skilled in the art can understand that the terminal 700 may further include a power supply (such as a battery) for supplying power to each component. The power supply can be logically connected to the processor 710 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine some components, or have different component arrangements, which will not be described herein again.

[0176] It should be understood that in the embodiments of the present application, the input unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes the image data of static pictures or videos obtained by an image capturing device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, a joystick, which will not be elaborated herein.

[0177] In the embodiments of the present application, after receiving the downlink data from the network side device, the radio frequency unit 701 sends it to the processor 710 for processing; in addition, it sends the uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0178] The memory 709 can be used to store software programs or instructions and various data. The memory 709 mainly includes a program or instruction storage area and a data storage area. Among them, the program or instruction storage area can store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory. The non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid state storage devices.

[0179] The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, the user interface, and applications or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It can be understood that the above-mentioned modem processor may not be integrated into the processor 710.

[0180] Among them, the radio frequency unit 701 is used to send CSI reports through the PUSCH of MSG-A in the random access process.

[0181] In the embodiments of the present application, the terminal can perform CSI measurement and reporting. Thus, the network-side device can obtain channel state information as early as possible, use more accurate parameters to schedule the terminal, and improve communication efficiency.

[0182] The terminal provided in the embodiments of the present application can also implement each process of the above CSI reporting method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0183] Specifically, the embodiments of the present application also provide a network-side device. As Figure 8 shown, the network device 800 includes: an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and then sends it out through the antenna 81.

[0184] The above frequency band processing device may be located in the baseband device 83. The methods executed by the network-side device in the above embodiments may be implemented in the baseband device 83. The baseband device 83 includes a processor 84 and a memory 85.

[0185] The baseband device 83 may include, for example, at least one baseband board, and multiple chips are provided on the baseband board. As Figure 8 shown, one of the chips is, for example, the processor 84, which is connected to the memory 85 to call the program in the memory 85 and execute the operations of the network device shown in the above method embodiments.

[0186] The baseband device 83 may further include a network interface 86 for interacting with the radio frequency device 82. The interface is, for example, a common public radio interface (CPRI for short).

[0187] Specifically, the network-side device in the embodiments of the present invention further includes: instructions or programs stored on the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute Figure 5 the methods executed by the respective modules shown and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0188] The embodiments of the present application further provide a readable storage medium, on which a program or instructions are stored. When the program or instructions are executed by a processor, the various processes of the above-mentioned embodiments of the CSI reporting method are implemented, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0189] Wherein, the processor may be the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs.

[0190] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the various processes of the above-mentioned embodiments of the CSI reporting method, and the same technical effects can be achieved. To avoid repetition, details are not described herein again.

[0191] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0192] It should be noted that in this document, the terms "include", "comprise" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including such element. In addition, it should be pointed out that the methods and devices in the embodiments of the present application are not limited to performing functions in the order shown or discussed. They may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0193] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0194] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A method for reporting channel state information CSI, characterized in that, The method includes: When preset conditions are satisfied, the terminal sends a CSI report through a Physical Uplink Shared Channel (PUSCH) of a Message A in a random access procedure; wherein, the preset conditions include at least one of the following: the measured Reference Signal Received Power (RSRP) is higher than a first value, the Reference Signal Received Quality (RSRQ) is higher than a second value, or the path loss is lower than a third value; the Transport Block Size (TBS) actually transmitted by the PUSCH of the Message A is less than a fourth value or the coding rate is less than a fifth value; The measurement resources corresponding to the CSI report include: a Channel State Information Reference Signal (CSI-RS) that has a Quasi-Co-Location (QCL) relationship with a Synchronization and Broadcast Block (SSB) selected by the terminal, and the SSB is associated with the Message A; The CSI report is a CSI report based on a Rank Indicator (RI) of 1; or the CSI report is a broadband CSI report.

2. The method according to claim 1, wherein The network side device indicates the CSI-RS through at least one of the following: system information, a control channel, a paging control channel, signaling in a Physical Downlink Shared Channel (PDSCH) scheduled by the paging control channel, Radio Resource Control (RRC) signaling, and a Medium Access Control Control Element (MAC-CE) command.

3. The method according to claim 1, wherein The CSI report includes at least one of the following: a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), an RI, a Layer 1 Reference Signal Received Power (L1-RSRP), and a CSI Reference Signal Resource Indicator.

4. The method according to claim 1, wherein the CSI report is measured by the terminal using the SSB or the CSI-RS as interference measurement resources; or the CSI report is measured by the terminal using the SSB that has a QCL relationship with the CSI-RS as interference measurement resources; or the CSI report is measured by the terminal using the CSI-RS that has a QCL relationship with the SSB as interference measurement resources.

5. The method according to claim 1, wherein The PUSCH corresponds to first indication information, and the first indication information is used to indicate that the PUSCH includes the CSI report.

6. The method according to claim 5, wherein the first indication information is indicated by preset bits in the PUSCH; or the first indication information is a preset logical channel identifier.

7. The method according to claim 5, wherein the first indication information is a preset random access preamble.

8. The method according to claim 1, wherein The preamble of the Message A in the random access procedure is specific, wherein the preamble is related to the SSB or the CSI-RS.

9. The method according to claim 1, characterized in that The CSI report and the first message are transmitted in an independent coding manner, and the first message is a message other than the CSI report in the PUSCH.

10. The method according to claim 9, characterized in that The method further includes: receiving second indication information, and the second indication information is used to indicate the coding rate of the CSI report.

11. The method according to claim 10, wherein When the network side device does not configure the second indication information for the terminal, or when the second indication information is a first specific value, the terminal does not send the CSI report through the PUSCH.

12. The method according to claim 1, characterized in that, The method further includes: sending the CSI report in MSG3 when at least one of the following conditions is met: The CSI report has been sent via the PUSCH of the MSG-A; A physical downlink control channel (PDCCH) scrambled by the MSG-B radio network temporary identifier (RNTI) is not detected; A PDCCH scrambled by a random access RNTI (RA-RNTI) is detected, and the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent during the random access procedure; A PDCCH scrambled by the RA-RNTI is detected, and the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent during the random access procedure is located; The CSI request field in the random access response (RAR) indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled by the RA-RNTI; The network-side device indicates in higher-layer signaling that the terminal performs CSI reporting.

13. The method according to claim 12, wherein The CSI report sent in the MSG3 and the CSI report sent via the PUSCH of the MSG-A use the same transmission parameters, where the transmission parameters include at least one of the following: Whether the CSI report is for independent coded transmission; The parameter of the code rate for the CSI report transmission.

14. The method according to claim 1, wherein Before sending the CSI report via the PUSCH of the MSG-A during the random access procedure, the terminal is in the idle state or the inactive state.

15. A CSI reporting method, characterized in that, The method includes: The network-side device receives the CSI report via the PUSCH of the MSG-A during the random access procedure; where the CSI report is sent by the terminal when a preset condition is met, and the preset condition includes at least one of the following: the measured RSRP is higher than a first value, the RSRQ is higher than a second value, or the path loss is lower than a third value; the transport block size (TBS) actually transmitted by the PUSCH of the MSG-A is less than a fourth value or the code rate is less than a fifth value; The measurement resource corresponding to the CSI report includes: a CSI-RS that has a quasi-co-location (QCL) relationship with the SSB selected by the terminal, and the SSB is associated with the MSG-A; The CSI report is a CSI report based on RI = 1; or the CSI report is a broadband CSI report.

16. The method according to claim 15, wherein The method further includes sending configuration information for configuring the terminal to send the CSI report via the PUSCH of the MSG-A during the random access procedure.

17. The method according to claim 15, wherein The method further includes: Indicating the CSI-RS by at least one of the following: system information, a control channel, a paging control channel, signaling in a PDSCH scheduled by the paging control channel, RRC signaling, a MAC-CE command.

18. The method according to claim 15, wherein The PUSCH corresponds to first indication information, and the method further includes: Determining that the PUSCH includes the CSI report according to the first indication information.

19. The method according to claim 18, wherein The first indication information is indicated by a preset bit in the PUSCH; or The first indication information is a preset logical channel identifier.

20. The method according to claim 18, wherein the first indication information is a preset random access preamble preamble.

21. The method according to claim 15, characterized in that The method further includes: sending second indication information for indicating the code rate of the CSI report; wherein, the CSI report and the first message are transmitted in an independently encoded manner, and the first message is a message other than the CSI report in the PUSCH.

22. The method according to claim 15, wherein The method further includes: receiving the CSI report in MSG3, and the CSI report received in MSG3 is sent by the terminal when at least one of the following conditions is met: sending the CSI report through the PUSCH of the MSG-A; not detecting a physical downlink control channel PDCCH scrambled with a MSG-B - radio network temporary identity RNTI; detecting a PDCCH scrambled with a random access radio network temporary identity RA-RNTI, where the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent in the random access process; detecting a PDCCH scrambled with a RA-RNTI, where the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent in the random access process is located; the CSI request field in the random access response RAR indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled with a RA-RNTI; the network side device indicates in high-layer signaling that the terminal performs CSI reporting.

23. A terminal, characterized in that, including: a sending module, configured to send a CSI report through the PUSCH of MSG-A in the random access process when a preset condition is met; wherein, the preset condition includes at least one of the following: the measured RSRP is higher than a first value, the RSRQ is higher than a second value, or the path loss is lower than a third value; the actual transmitted transport block size (TBS) of the PUSCH of the MSG-A is less than a fourth value or the code rate is less than a fifth value; the measurement resources corresponding to the CSI report include: CSI-RS that has a quasi-co-location (QCL) relationship with the SSB selected by the terminal, and the SSB is associated with the MSG-A; the CSI report is a CSI report based on RI=1; or the CSI report is a broadband CSI report.

24. The terminal according to claim 23, wherein The sending module is further configured to: send the CSI report in MSG3 when at least one of the following conditions is met: sending the CSI report through the PUSCH of the MSG-A; not detecting a physical downlink control channel PDCCH scrambled with a MSG-B - radio network temporary identity RNTI; detecting a PDCCH scrambled with a random access radio network temporary identity RA-RNTI, where the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent in the random access process; detecting a PDCCH scrambled with a RA-RNTI, where the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent in the random access process is located; The CSI request field in the random access response (RAR) indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled with a RA-RNTI; The network side device indicates that the terminal performs CSI reporting in high-layer signaling.

25. A network-side device, characterized in that, It includes: A receiving module, configured to receive a CSI report through the PUSCH of MSG-A in a random access procedure; Wherein, the CSI report is sent by the terminal when meeting a preset condition, and the preset condition includes at least one of the following: the measured RSRP is higher than a first value, the RSRQ is higher than a second value, or the path loss is lower than a third value; the TBS actually transmitted by the PUSCH of MSG-A is less than a fourth value or the coding rate is less than a fifth value; The measurement resource corresponding to the CSI report includes: a CSI-RS that has a QCL relationship with the SSB selected by the terminal, and the SSB is associated with MSG-A; The CSI report is a CSI reporting based on RI = 1; or the CSI report is a broadband-based CSI reporting.

26. The network-side device according to claim 25, characterized in that, The receiving module is further configured to: receive the CSI report in MSG3, and the CSI report received in MSG3 is sent by the terminal when meeting at least one of the following: The CSI report is sent through the PUSCH of MSG-A; A physical downlink control channel (PDCCH) scrambled with a MSG-B - radio network temporary identity (RNTI) is not detected; A PDCCH scrambled with a random access radio network temporary identity (RA-RNTI) is detected, and the RA-RNTI corresponds to the time-frequency resource of the preamble and / or RO sent in the random access procedure; A PDCCH scrambled with a RA-RNTI is detected, and the system frame number information included in the PDCCH corresponds to the system frame number where the preamble sent in the random access procedure is located; The CSI request field in the random access response (RAR) indicates that the terminal performs CSI reporting, and the RAR is scheduled by a PDCCH scrambled with a RA-RNTI; The network side device indicates that the terminal performs CSI reporting in high-layer signaling.

27. A terminal, characterized in that, It includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, it implements the CSI reporting method according to any one of claims 1 to 14.

28. A network-side device, characterized in that, It includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, it implements the CSI reporting method according to any one of claims 15 to 22.

29. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, it implements the CSI reporting method according to any one of claims 1 to 14, or implements the CSI reporting method according to any one of claims 15 to 22.

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