Information reporting, receiving method, device, terminal, service node and storage medium

Abstract

The present application provides an information reporting and receiving method, device, terminal, service node and storage medium. The method receives indication information under a random access mechanism; and reports channel state information according to the indication information.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to an information reporting and receiving method, device, terminal, service node and storage medium. Background Art

[0002] During wireless communication, the channel state is constantly changing and has a great impact on the wireless signal. For example, the quality of the channel can determine the modulation method of the signals of the two communicating parties, and will also affect the competition results in the competition process of establishing communication. In the application scenario of non-terrestrial network (NTN), the satellite base station is very far away from the ground terminal, resulting in a large transmission delay. For satellite base stations in low earth orbit (LEO), the high speed of movement will also cause frequent switching of terminal access. At present, the new wireless communication technology (New Radio, NR) protocol lacks an effective information reporting or receiving method, resulting in the random access mechanism being unable to adapt to channel changes, especially in scenarios with large delays and multiple switching, which greatly reduces the performance of random access and has poor reliability. Summary of the invention

[0003] The present application provides an information reporting and receiving method, device, terminal, service node and storage medium, which takes into account the change of channel state and improves the reliability of random access by reporting channel state information (CSI) in a random access mechanism.

[0004] The embodiment of the present application provides an information reporting method, which is applied to a terminal, including:

[0005] receiving indication information under a random access mechanism;

[0006] Report channel state information according to the indication information.

[0007] The embodiment of the present application also provides a method for receiving information, including:

[0008] Sending indication information under the random access mechanism;

[0009] The receiving terminal reports the channel state information according to the indication information.

[0010] The embodiment of the present application also provides an information reporting device, including:

[0011] An indication information receiving module, configured to receive indication information under a random access mechanism;

[0012] The status information reporting module is configured to report the channel status information according to the indication information.

[0013] The present application also provides an information receiving device, including:

[0014] An indication information sending module, configured to send indication information under a random access mechanism;

[0015] The state information receiving module is configured to receive the channel state information reported by the terminal according to the indication information.

[0016] The present application also provides a terminal, including:

[0017] one or more processors;

[0018] A storage device for storing one or more programs;

[0019] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned information reporting method.

[0020] The present application also provides a service node, including:

[0021] one or more processors;

[0022] A storage device for storing one or more programs;

[0023] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned information receiving method.

[0024] An embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above-mentioned information reporting method or information receiving method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flowchart of an information reporting method provided by an embodiment;

[0026] Figure 2 is a schematic diagram of a first type of random access mechanism in an embodiment;

[0027] Figure 3 is a schematic diagram of a second type of random access mechanism in an embodiment;

[0028] Figure 4 A flowchart of an information receiving method provided by an embodiment;

[0029] Figure 5 A schematic diagram of the structure of an information reporting device provided by an embodiment;

[0030] Figure 6 A schematic diagram of the structure of an information receiving device provided by an embodiment;

[0031] Figure 7 A schematic diagram of the structure of a terminal provided by an embodiment;

[0032] Figure 8 A schematic diagram of the structure of a service node provided by an embodiment. DETAILED DESCRIPTION

[0033] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0034] In NTN and multiple switching scenarios, the satellite base station is very far away from the ground terminal, resulting in large transmission delays. For LEO satellite base stations, the movement speed of up to 7.5km / s will also cause the terminal to switch frequently. Excessive delays cause the random access process to last for a long time and be greatly affected by channel changes, while frequent switching leads to frequent random access processes. In the NR protocol, there is no mechanism for adding CSI reporting to the random access process. When the service node makes a decision to resolve contention, the transmission performance during the random access process is greatly impaired due to the lack of consideration of channel state information, and it cannot adapt to channel changes.

[0035] This embodiment introduces a CSI reporting mechanism for random access. The terminal reports the CSI to the service node. The service node can select the best access terminal or determine the modulation mode from the competing terminals based on the CSI reported by the terminal, so as to better adapt to the changes of the wireless channel and improve the performance of random access.

[0036] Figure 1 Flow chart of an information reporting method provided by an embodiment. The information reporting method provided by this embodiment can be applied to a terminal, such as Figure 1 As shown, the method includes step 110 and step 120.

[0037] In step 110, indication information under a random access mechanism is received.

[0038] In one embodiment, the terminal receives the indication information sent by the service node under the random access mechanism, and the service node may instruct the terminal to report CSI through a random access response message (Random Access Response, RAR) or a downlink broadcast message. In one embodiment, the indication information may also be used to instruct the terminal to report CSI parameters, calculate the reference signal required to measure CSI, etc.

[0039] In step 120, channel state information is reported according to the indication information.

[0040] In one embodiment, the terminal obtains the corresponding channel state information by measuring the reference signal according to the indication information and reports it to the service node. For example, the indication information may instruct the terminal to measure the synchronization signal / physical broadcast channel block (SSB) and report the received power of the best reference signal. In this case, after receiving the indication information, the terminal measures the SSB and determines the received power of the best SSB, and reports it to the service node as CSI. For another example, the indication information may instruct the terminal to measure the channel state information reference signal (CSI Reference Signal, CSI-RS) signal and report the channel quality indicator (Channel Quality Indicator, CQI) of the best CSI-RS. After receiving the indication information, the terminal measures the CSI-RS and determines the CQI of the best CSI-RS, and reports it to the service node as CSI. On this basis, the service node can make a random access decision based on the CSI reported by the terminal and send a contention resolution message to the terminal.

[0041] In one embodiment, the resource location for reporting CSI by the terminal corresponds to the ID of the terminal; when the terminal receives and measures downlink reference signals of multiple base stations, the resource location also corresponds to the ID of the cell.

[0042] In one embodiment, the parameters for reporting CSI can be set according to actual conditions. For example, it can be set according to the number of antenna ports, high-level parameter configuration, etc. For example, the indication information may include CQI indication information, which is used to instruct the terminal to report broadband CQI or subband CQI. For another example, the indication information may include precoding matrix indication (Precoding Matrix Indicator, PMI) indication information, which is used to indicate whether the terminal reports broadband PMI or subband PMI when the number of antenna ports is greater than 1; in the case of reporting subband PMI, if the number of ports is not 2, the terminal can also be instructed to report a broadband PMI (i1) and a subband PMI (i2) for each subband, and if the number of ports is 2, the terminal can also be instructed to report a subband PMI for each subband; in the case of reporting PMI, the terminal can also be instructed to report a layer indication (Layer Indicator, LI) to indicate the column of the strongest layer of the corresponding codeword in the precoding matrix, etc. The above-mentioned CQI, PMI, LI, etc. are all reported as CSI for the service node to make a decision.

[0043] In one embodiment, the indication information is used to instruct the terminal to report the channel state information through the third message of the first type of random access mechanism; or, the indication information is used to instruct the terminal to report the channel state information through the type A message of the second type of random access mechanism.

[0044] In one embodiment, in the case of a first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message; in the case of a second type of random access mechanism, the indication information is a downlink broadcast message.

[0045] Figure 2 FIG. 1 is a schematic diagram of a first type of random access mechanism in an embodiment. Figure 2 As shown, in the first type of random access mechanism, there are four steps before the terminal establishes a connection with the service node:

[0046] 1) The terminal sends a first message (denoted as msg1) to the service node. The msg1 includes a random access preamble, which is used to initiate a contention access request to the service node. There is a contention relationship between terminals with the same random access preamble.

[0047] 2) After receiving msg1, the service node sends a second message (referred to as msg2) to the terminal. msg2 is a RAR, which is used to respond to the contention access request initiated by the terminal.

[0048] 3) The terminal sends a third message (denoted as msg3) to the service node, which is used to report CSI according to the indication information of the service node, wherein the indication information can be RAR or a downlink broadcast message, and the downlink broadcast message is sent by the service node to the terminal before step 1).

[0049] 4) The service node sends a fourth message to the terminal, where the fourth message includes a contention resolution message, indicating a contention resolution method made by the service node according to the CSI.

[0050] In the scenario of the first type of random access mechanism, the indication information is used to instruct the terminal to report CSI through msg3.

[0051] Figure 3 FIG. 4 is a schematic diagram of a second type of random access mechanism in an embodiment. Figure 3 As shown, in the second type of random access mechanism, there are two steps before the terminal establishes a connection with the service node:

[0052] 1) The terminal sends a type A message (referred to as msgA) to the service node according to the indication information, which includes a random access preamble and CSI, thereby initiating a contention access request and reporting the CSI. The indication information is a downlink broadcast message, which is sent by the service node to the terminal before step 1).

[0053] 2) After receiving msgA, the service node sends a class B message (referred to as msgB) to the terminal. msgB includes RAR and contention resolution message, thereby responding to the contention access request initiated by the terminal and indicating the contention resolution method made according to CSI.

[0054] In the scenario of the second type of random access mechanism, the indication information is used to instruct the terminal to report CSI through msgA.

[0055] In one embodiment, the indication information includes at least one of the following: first indication information, used to indicate parameters included in the channel state information reported by the terminal; second indication information, used to indicate the reference signal required to measure the terminal to calculate the channel state information; third indication information, used to indicate the terminal's reporting operation on the channel state information, and the reporting operation includes reporting and not reporting.

[0056] In this embodiment, the first indication information can be used to indicate the parameters included in the CSI reported by the terminal, for example, the index of the best reference signal, the reference signal receiving power (RSRP), CQI, PIMI, RI, etc.; the second indication information can be used to instruct the terminal to calculate the CSI by measuring SSB, or to calculate the CSI by measuring CSI-RS; the third indication information is used to indicate whether the terminal needs to report CSI.

[0057] In one embodiment, when the indication information does not include certain information, the corresponding indication content may be determined according to a preset rule. For example, when the indication information does not include the first indication information, the terminal and the service node may pre-agree, specify through a protocol, or notify through other signaling methods, to indicate which parameters the reported CSI includes by default, and the terminal may report these parameters in the process of reporting the CSI.

[0058] In one embodiment, when the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal for calculating the CSI is a reference signal corresponding to the resources occupied by the first message in the first type of random access; or, when the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal for calculating the CSI is a reference signal corresponding to the resources occupied by a type A message of the second type of random access mechanism; wherein the reference signal includes at least one of an SSB and a CSI-RS.

[0059] In this embodiment, for the first type of random access mechanism and the indication information does not include the second indication information, the terminal obtains the CSI by measuring the reference signal corresponding to the resources occupied by the first message, wherein the resources occupied by the first message are the physical random access channel (Physical Random Access Channel, PRACH); for the second type of random access mechanism and the indication information does not include the second indication information, the terminal measures the resources occupied by the A class message to obtain the CSI, wherein the resources occupied by the A class message are the PRACH and the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH).

[0060] In one embodiment, the channel state information is obtained by measuring a reference signal, where the reference signal includes at least one of an SSB and a CSI-RS.

[0061] In one embodiment, the parameter of the channel state information includes at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0062] In one embodiment, the parameter of the channel state information includes an index of the best reference signal; or,

[0063] When the index of the best reference signal is consistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the Class A message of the second type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal; when the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the Class A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

[0064] In one embodiment, when the number of reference signal antenna ports is 1, the parameters of the channel state information do not include PMI and RI; or, when the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of the index of the best reference signal, the reference signal received power RSRP, the channel state indication CQI, the rank indication RI, and the precoding matrix indication PMI.

[0065] In this embodiment, when the number of reference signal antenna ports is 1, there is no need to distinguish between the rank and the precoding matrix, so the reported CSI parameters may not include PMI and RI, but include at least one of the index of the best reference signal, RSRP, and CQI. Alternatively, when the number of reference signal antenna ports is greater than 1, the CSI parameters include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0066] In one embodiment, the best reference signal is a reference signal with the largest measured power or a reference signal with the largest CQI.

[0067] In this embodiment, the reference signal may be SSB and CSI-RS. The reference signal is measured, and the reference signal with the largest received power is used as the best reference signal, or the reference signal with the largest CQI is used as the best reference signal, and the CSI of the best reference signal is reported. The CSI may include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0068] In one embodiment, after reporting the channel state information according to the indication information, the method further includes:

[0069] receiving a contention resolution message generated by the service node according to the channel state information;

[0070] When the terminal ID in the contention resolution message is consistent with the terminal ID reporting the CSI, a connection is established with the service node.

[0071] For example, in one embodiment, the random access is an initial random access, and the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the index of the best SSB and RSRP, and the RSRP is obtained by measuring the SSB.

[0072] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the downlink SSB beam. Assuming that there are K downlink SSB beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0073] After receiving msg1, the service node sends RAR on PDSCH;

[0074] After receiving the RAR, the terminal measures all downlink SSB beams according to the instructions of the downlink broadcast signal and determines the SSB beam with the largest receiving power (denoted as B k ), by sending msg3 to the serving node to report CSI, regardless of the SSB beam with the largest receiving power (B k ) is consistent with the SSB beam (B1) corresponding to the resources occupied by sending msg1, and the parameters of the reported CSI include the index and RSRP of the best SSB;

[0075] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0076] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0077] For example, in one embodiment, the random access is an initial random access, and the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, and the parameters of the reported CSI include the index and RSRP of the best SSB, or only include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0078] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the downlink SSB beam. Assuming that there are K downlink SSB beams (denoted as B1,...,B K), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0079] After receiving msg1, the service node sends RAR on PDSCH;

[0080] After receiving the RAR, the terminal measures all downlink SSB beams according to the instructions of the downlink broadcast signal and determines the SSB beam with the largest receiving power (denoted as B k ), by sending msg3 to the service node to report CSI: In the above B k In the case of being consistent with B1 (k=1), the reported CSI may only include B k RSRP, excluding B k The index of B1 indicates that B1 is the best SSB with the largest receiving power. k In the case of inconsistency with B1 (k∈{1,2,...,K},k≠1), the reported CSI includes B k Index and RSRP;

[0081] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0082] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0083] For example, in one embodiment, the random access is an initial random access, and the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, and the parameters of the reported CSI include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0084] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the downlink SSB beam. Assuming that there are K downlink SSB beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0085] After receiving msg1, the service node sends RAR on PDSCH;

[0086] After receiving the RAR, the terminal measures all downlink SSB beams according to the RAR instruction and determines the SSB beam with the largest receiving power (denoted as B k ), by sending msg3 to the serving node to report CSI, regardless of the SSB beam with the largest receiving power (B k ) is consistent with the SSB beam (B1) corresponding to the resources occupied by sending msg1, and the parameters of the reported CSI include the index and RSRP of the best SSB;

[0087] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0088] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0089] For example, in one embodiment, the random access is an initial random access, and the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the index and RSRP of the best SSB, or only include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0090] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the downlink SSB beam. Assuming that there are K downlink SSB beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0091] After receiving msg1, the service node sends RAR on PDSCH;

[0092] After receiving the RAR, the terminal measures all downlink SSB beams according to the RAR instruction and determines the SSB beam with the largest receiving power (denoted as B k ), by sending msg3 to the service node to report CSI: In the above B k In the case of being consistent with B1 (k=1), the reported CSI may only include B k RSRP, excluding B k The index of B1 indicates that B1 is the best SSB with the largest receiving power. k In the case of inconsistency with B1 (k∈{1,2,...,K},k≠1), the reported CSI includes B kIndex and RSRP;

[0093] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0094] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0095] For example, in one embodiment, the random access is non-initial random access, and the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the index of the best SSB or the index of the best CSI-RS (CSI-RS Resource Indicator, CRI), and also include the RSRP of the best SSB or the best CSI-RS, and the RSRP is obtained by measuring the SSB or CSI-RS.

[0096] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the reference signal beam (SSB beam or CSI-RS). Assuming that there are K reference signal beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0097] After receiving msg1, the service node sends RAR on PDSCH;

[0098] After receiving the RAR, the terminal measures all downlink SSB beams according to the instructions of the downlink broadcast signal and determines the reference signal beam with the largest received power (denoted as B k ), reports CSI by sending msg3 to the service node, regardless of B k Whether it is consistent with B1, the parameters of the reported CSI include the index of the best reference signal and RSRP. If the RSRP is obtained by measuring the SSB, the index of the best reference signal is the index of the best SSB. If the RSRP is obtained by measuring the CSI-RS, the index of the best reference signal is the CRI.

[0099] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0100] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0101] For example, in one embodiment, the random access is non-initial random access, and the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the RSRP of the best SSB or the best CSI-RS, and may also include the index of the best SSB or the index of the best CSI-RS (CSI-RS Resource Indicator, CRI), and the RSRP is obtained by measuring the SSB or CSI-RS.

[0102] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the reference signal beam (SSB beam or CSI-RS). Assuming that there are K reference signal beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0103] After receiving msg1, the service node sends RAR on PDSCH;

[0104] After receiving the RAR, the terminal measures all downlink SSB beams according to the instructions of the downlink broadcast signal and determines the reference signal beam with the largest received power (denoted as B k ), by sending msg3 to the service node to report CSI: In the above B k In the case of being consistent with B1 (k=1), the reported CSI may only include B k RSRP, excluding B k The index of B1 indicates that B1 is the best reference signal with the largest received power. k In the case of inconsistency with B1 (k∈{1,2,...,K},k≠1), the reported CSI includes B k The index of the best reference signal is the index of the best SSB if the RSRP is obtained by measuring the SSB, and the index of the best reference signal is the index of the best SSB if the RSRP is obtained by measuring the CSI-RS;

[0105] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0106] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0107] For example, in one embodiment, the random access is non-initial random access, and the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the index of the best SSB or the index of the best CSI-RS (CSI-RS Resource Indicator, CRI), and also include the RSRP of the best SSB or the best CSI-RS, and the RSRP is obtained by measuring the SSB or CSI-RS.

[0108] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the reference signal beam (SSB beam or CSI-RS). Assuming that there are K reference signal beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0109] After receiving msg1, the service node sends RAR on PDSCH;

[0110] After receiving the RAR, the terminal measures all downlink SSB beams according to the RAR instruction and determines the reference signal beam with the largest received power (denoted as B k ), reports CSI by sending msg3 to the service node, regardless of B k Whether it is consistent with B1, the parameters of the reported CSI include the index of the best reference signal and RSRP. If the RSRP is obtained by measuring the SSB, the index of the best reference signal is the index of the best SSB. If the RSRP is obtained by measuring the CSI-RS, the index of the best reference signal is the CRI.

[0111] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0112] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0113] For example, in one embodiment, the random access is non-initial random access, and the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the RSRP of the best SSB or the best CSI-RS, and may also include the index of the best SSB or the index of the best CSI-RS (CSI-RS Resource Indicator, CRI). The RSRP is obtained by measuring the SSB or CSI-RS.

[0114] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for a beam whose receiving power exceeds a preset threshold in the reference signal beam (SSB beam or CSI-RS). Assuming that there are K reference signal beams (denoted as B1,...,B K ), the searched beam whose receiving power exceeds the preset threshold is assumed to be B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0115] After receiving msg1, the service node sends RAR on PDSCH;

[0116] After receiving the RAR, the terminal measures all downlink SSB beams according to the RAR instruction and determines the reference signal beam with the largest received power (denoted as B k ), by sending msg3 to the service node to report CSI: In the above B k In the case of being consistent with B1 (k=1), the reported CSI may only include B k RSRP, excluding B k The index of B1 indicates that B1 is the best reference signal with the largest received power. k In the case of inconsistency with B1 (k∈{1,2,...,K},k≠1), the reported CSI includes B k The index of the best reference signal is the index of the best SSB if the RSRP is obtained by measuring the SSB, and the index of the best reference signal is the index of the best SSB if the RSRP is obtained by measuring the CSI-RS;

[0117] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0118] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0119] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, the number of antenna ports of the serving node is 1, and the parameters of the reported CSI include the CQI of the best CSI-RS.

[0120] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource, where msg1 includes a random access preamble;

[0121] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0122] After receiving the RAR, the terminal measures the CSI-RS according to the instructions of the broadcast signaling, and reports the CSI by sending msg3 to the serving node. The parameters of the reported CSI include the CQI of the best CSI-RS.

[0123] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0124] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0125] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, the number of antenna ports of the service node is greater than 1, and the parameters of the reported CSI include CQI, CRI, RI and PMI of the best CSI-RS.

[0126] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource, where msg1 includes a random access preamble;

[0127] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0128] After receiving the RAR, the terminal measures the CSI-RS according to the instructions of the broadcast signaling, and reports the CSI by sending msg3 to the serving node. The parameters of the reported CSI include the CQI, CRI, RI and PMI of the best CSI-RS.

[0129] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0130] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0131] For example, in one embodiment, the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, the number of antenna ports of the serving node is 1, and the parameters of the reported CSI include the CQI of the best CSI-RS.

[0132] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource, where msg1 includes a random access preamble;

[0133] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0134] After receiving the RAR, the terminal measures the CSI-RS according to the instruction of the RAR, and reports the CSI by sending msg3 to the serving node. The parameters of the reported CSI include the CQI, CRI, RI and PMI of the best CSI-RS.

[0135] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0136] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0137] For example, in one embodiment, the indication information is RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, the number of antenna ports of the service node is greater than 1, and the parameters of the reported CSI include CQI, CRI, RI and PMI of the best CSI-RS.

[0138] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource, where msg1 includes a random access preamble;

[0139] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0140] After receiving the RAR, the terminal measures the CSI-RS according to the instruction of the RAR, and reports the CSI by sending msg3 to the serving node. The parameters of the reported CSI include the CQI, CRI, RI and PMI of the best CSI-RS.

[0141] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0142] After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0143] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msgA in the second type of random access mechanism, and the parameters of the reported CSI include RSRP and index of the best reference signal. If the random access is initial access, RSRP can only be obtained by measuring SSB; if the random access is non-initial access, RSRP can be obtained by measuring SSB or CSI-RS.

[0144] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the received power of all reference signals according to the instruction of the downlink broadcast signal, and selects the beam with the earliest corresponding random access time (RACHOcassion, RO) (which may not be the beam with the largest received power) from the beams whose received power exceeds the threshold. Assume that the beam is B1 (there are K beams B1,...,B K ), msgA is sent in the uplink beam corresponding to B1, msgA includes a random access preamble and CSI, wherein, regardless of whether the beam with the largest received power is B1, the parameters of the reported CSI include the RSRP and index of the best reference signal, if the RSRP is obtained by measuring the SSB, the index of the best reference signal is the index of the best SSB; if the RSRP is obtained by measuring the CSI-RS, the index of the best reference signal is the CRI;

[0145] After receiving msgA, the service node makes a decision based on the CSI reported by the terminal and sends msgB, which includes the contention resolution message and RAR;

[0146] After the terminal receives msgB, if the terminal ID contained in msgB is consistent with the terminal ID that sent msgA, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0147] In one embodiment, when the beam with the largest received power is consistent with B1, the reported CSI parameters may or may not include the index of the best reference signal.

[0148] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msgA in the second type of random access mechanism, the antenna port of the service node is 1, and the parameters of the reported CSI include the CQI of the best reference signal. If the random access is an initial access, RSRP can only be obtained by measuring SSB; if the random access is a non-initial access, RSRP can be obtained by measuring SSB or CSI-RS.

[0149] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the received power of all reference signals according to the instruction of the downlink broadcast signal, and selects the beam with the earliest corresponding random access time (which may not be the beam with the largest received power) from the beams whose received power exceeds the threshold. Assume that the beam is B1 (there are K beams B1,...,B K ), msgA is sent in the uplink beam corresponding to B1, msgA includes a random access preamble and CSI, wherein the parameters of the reported CSI include the CQI of the best reference signal.

[0150] After receiving msgA, the service node makes a decision based on the CSI reported by the terminal and sends msgB, which includes the contention resolution message and RAR;

[0151] After the terminal receives msgB, if the terminal ID contained in msgB is consistent with the terminal ID that sent msgA, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0152] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to instruct the terminal to report CSI in msgA in the second type of random access mechanism, the number of antenna ports of the service node is greater than 1, and the parameters of the reported CSI include CRI, RI, PMI and CQI of the best reference signal. If the random access is initial access, RSRP can only be obtained by measuring SSB; if the random access is non-initial access, RSRP can be obtained by measuring SSB or CSI-RS.

[0153] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the received power of all reference signals according to the instruction of the downlink broadcast signal, and selects the beam with the earliest corresponding random access time (which may not be the beam with the largest received power) from the beams whose received power exceeds the threshold. Assume that the beam is B1 (there are K beams B1,...,B K ), msgA is sent in the uplink beam corresponding to B1, msgA includes PRACH and CSI, wherein the reported CSI parameters include CRI, RI, PMI and CQI of the best reference signal.

[0154] After receiving msgA, the service node makes a decision based on the CSI reported by the terminal and sends msgB, which includes the contention resolution message and RAR;

[0155] After the terminal receives msgB, if the terminal ID contained in msgB is consistent with the terminal ID that sent msgA, the competition is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are inconsistent, the competition fails and random access is re-initiated.

[0156] For example, in one embodiment, the indication information is a broadcast signal or RAR, which is used to instruct the terminal to report CSI in msg3 in the first type of random access mechanism, and the CSI is measured by measuring reference signals of different cells (including the cell to which this base station belongs). The reported parameters include the cell index and the index of the best reference signal, RSRP, CQI, RI, and at least one of PMI.

[0157] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource, where msg1 includes a random access preamble;

[0158] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0159] After receiving the RAR, the terminal measures the CSI-RS according to the downlink broadcast signal or the instruction of the RAR, and reports the CSI by sending msg3 to the serving node. The parameters of the reported CSI include the index of the cell, the index of the best reference signal, and at least one of RSRP, CQI, RI, and PMI.

[0160] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4:

[0161] If the cell index in the CSI is consistent with the current cell index, the current service node (assuming it is base station 1) sends a contention resolution message. After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with base station 1, and the random access process ends. If they are inconsistent, the contention fails and random access is re-initiated;

[0162] If the cell index in the CSI (assuming it is base station 2) is inconsistent with the current cell index, the current service node (assuming it is base station 1) sends a contention resolution message. After the terminal receives msg4, if the terminal ID contained in msg4 is consistent with the terminal ID that sent msg3, the contention is successful and the terminal establishes a connection with base station 1. If they are inconsistent, the contention fails and random access is re-initiated. After the terminal establishes a connection with base station 1, base station 1 sends a scheduling message to inform the terminal to monitor the signal sent by the service node (base station 2) corresponding to the cell index in the CSI, where the configuration information of the scheduling message is consistent with the configuration information of the service node (base station 2) corresponding to the cell index in the CSI, that is, the terminal will establish a connection with base station 2.

[0163] For example, in one embodiment, the indication information is a broadcast signal, which is used to instruct the terminal to report CSI in msgA in the second type of random access mechanism, and the CSI is obtained by measuring the reference signals of different cells (including the cell to which this base station belongs), and the reported parameters include the index of the cell, the index of the best reference signal, and at least one of RSRP, CQI, RI, and PMI.

[0164] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the CSI-RS according to the instruction of the downlink broadcast signal, and reports the CSI by sending msgA to the service node, where msgA includes the random access preamble and the CSI, and the parameters of the reported CSI include the index of the cell, the index of the best reference signal, and at least one of RSRP, CQI, RI, and PMI;

[0165] After receiving msgA, the service node makes a decision based on the CSI reported by the terminal and sends msgB, which includes the contention resolution message and RAR.

[0166] If the cell index in the CSI is consistent with the current cell index, the current serving node (assuming it is base station 1) sends a contention resolution message. After the terminal receives msgB, if the terminal ID contained in msgB is consistent with the terminal ID that sends msgB, the contention is successful, the terminal establishes a connection with base station 1, and the random access process ends. If they are inconsistent, the contention fails and random access is re-initiated;

[0167] If the cell index in the CSI (assuming it is base station 2) is inconsistent with the current cell index, the current base station (assuming it is base station 1) sends a contention resolution message. After the terminal receives msgB, if the terminal ID contained in msgB is consistent with the terminal ID that sent msgB, the contention is successful, the terminal establishes a connection with base station 1, and the random access process ends. If they are inconsistent, the contention fails and random access is re-initiated. After the terminal establishes a connection with base station 1, it sends a scheduling message to inform the terminal to monitor the signal sent by the base station (base station 2) corresponding to the cell index in the CSI, where the configuration information of the scheduling message is consistent with the configuration information of the base station (base station 2) corresponding to the cell index in the CSI, that is, the terminal will establish a connection with base station 2.

[0168] The information reporting method of this embodiment introduces a CSI reporting mechanism for random access. The terminal reports the CSI to the service node. The service node can select the best access terminal or determine the modulation mode from the competing terminals based on the CSI reported by the terminal, so as to better adapt to the changes in the wireless channel and improve the performance of random access.

[0169] Figure 4 A flowchart of an information receiving method provided by an embodiment is applied to a service node, such as Figure 4 As shown, the method provided in this embodiment includes step 210 and step 220.

[0170] In step 210, indication information under the random access mechanism is sent.

[0171] In step 220, the receiving terminal reports the channel state information according to the indication information.

[0172] In one embodiment, the indication information is used to instruct the terminal to report the channel state information through a third message of the first type of random access mechanism; or,

[0173] The indication information is used to instruct the terminal to report the channel state information through a type A message of the second type random access mechanism.

[0174] In one embodiment, in the case of the first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message;

[0175] In case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0176] In one embodiment, the indication information includes at least one of the following:

[0177] The first indication information is used to indicate the parameters included in the channel state information reported by the terminal;

[0178] The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information;

[0179] The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting.

[0180] In one embodiment, when the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to the resources occupied by the first message in the first type of random access; or,

[0181] When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism;

[0182] The reference signal includes at least one of a synchronization signal / physical broadcast channel block SSB and a channel state information reference signal CSI-RS.

[0183] In one embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of an SSB and a CSI-RS.

[0184] In one embodiment, the parameter of the channel state information includes at least one of an index of a best reference signal, RSRP, CQI, RI, and PMI.

[0185] In one embodiment, the parameter of the channel state information includes an index of a best reference signal; or, when the index of the best reference signal is consistent with an index of a reference signal corresponding to resources occupied by a first message of a first type of random access mechanism or a type A message of a second type of random access mechanism, the parameter of the channel state information does not include the index of the best reference signal,

[0186] When the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

[0187] In one embodiment, when the number of reference signal antenna ports is 1, the channel state information parameter does not include PMI and RI; or,

[0188] When the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of the index of the best reference signal, the reference signal received power RSRP, the channel state indication CQI, the rank indication RI, and the precoding matrix indication PMI.

[0189] In one embodiment, the best reference signal is a reference signal with the largest measurement power or a reference signal with the largest CQI.

[0190] In one embodiment, after receiving the channel state information reported by the terminal according to the indication information, the method further includes:

[0191] Sending a contention resolution message generated according to the channel state information to the terminal;

[0192] When the terminal ID in the contention resolution message is consistent with the terminal ID reporting the CSI, a connection is established with the terminal.

[0193] The information receiving method of this embodiment introduces a CSI reporting mechanism for random access, instructs the terminal to report CSI to the service node, selects the best access terminal or determines the modulation mode among competing terminals based on the received CSI, so as to better adapt to changes in the wireless channel and improve the performance of random access.

[0194] The embodiment of the present application also provides an information reporting device. Figure 5 FIG. 1 is a schematic diagram of a structure of an information reporting device provided by an embodiment. Figure 5 As shown, the information reporting device includes:

[0195] An indication information receiving module 310, configured to receive indication information under a random access mechanism;

[0196] The state information reporting module 320 is configured to report the channel state information according to the indication information.

[0197] The information reporting device of this embodiment introduces a CSI reporting mechanism for random access, receives indication information through an indication information receiving module, and reports CSI to a service node through a status information reporting module, so that the service node can select the best access terminal or determine a modulation mode from competing terminals according to the CSI reported by the terminal, thereby better adapting to changes in the wireless channel and improving the performance of random access.

[0198] In one embodiment, the indication information is used to instruct the terminal to report the channel state information through a third message of the first type of random access mechanism; or,

[0199] The indication information is used to instruct the terminal to report the channel state information through a type A message of the second type random access mechanism.

[0200] In one embodiment, in the case of the first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message;

[0201] In case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0202] In one embodiment,

[0203] The indication information includes at least one of the following:

[0204] The first indication information is used to indicate the parameters included in the channel state information reported by the terminal;

[0205] The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information;

[0206] The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting.

[0207] In one embodiment, when the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to the resources occupied by the first message in the first type of random access; or,

[0208] When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism;

[0209] The reference signal includes at least one of SSB and CSI-RS.

[0210] In one embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of an SSB and a CSI-RS.

[0211] In one embodiment, the parameter of the channel state information includes at least one of an index of a best reference signal, RSRP, CQI, RI, and PMI.

[0212] In one embodiment, the parameter of the channel state information includes an index of a best reference signal; or,

[0213] In a case where the index of the best reference signal is consistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal,

[0214] When the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

[0215] In one embodiment, when the number of reference signal antenna ports is 1, the channel state information parameter does not include PMI and RI; or,

[0216] When the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of the index of the best reference signal, the reference signal received power RSRP, the channel state indication CQI, the rank indication RI, and the precoding matrix indication PMI.

[0217] In one embodiment, the best reference signal is a reference signal with the largest measurement power or a reference signal with the largest CQI.

[0218] The information reporting device proposed in this embodiment and the information reporting method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the information reporting method.

[0219] The embodiment of the present application also provides an information receiving device. Figure 6 FIG. 1 is a schematic diagram of the structure of an information receiving device provided by an embodiment. Figure 6 As shown, the information reporting device includes:

[0220] An indication information sending module 410, configured to receive indication information under a random access mechanism;

[0221] The state information receiving module 420 is configured to report the channel state information according to the indication information.

[0222] The information receiving device of this embodiment introduces a CSI reporting mechanism for random access, instructs the terminal to report CSI through the indication information sending module, and receives CSI through the status information receiving module, so that the best access terminal can be selected from competing terminals or the modulation mode can be determined according to the CSI reported by the terminal, so as to better adapt to changes in the wireless channel and improve the performance of random access.

[0223] In one embodiment, the indication information is used to instruct the terminal to report the channel state information through a third message of the first type of random access mechanism; or,

[0224] The indication information is used to instruct the terminal to report the channel state information through a type A message of the second type random access mechanism.

[0225] In one embodiment, in the case of the first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message;

[0226] In case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0227] In one embodiment, the indication information includes at least one of the following:

[0228] The first indication information is used to indicate the parameters included in the channel state information reported by the terminal;

[0229] The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information;

[0230] The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting.

[0231] In one embodiment, when the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to the resources occupied by the first message in the first type of random access; or,

[0232] When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism;

[0233] The reference signal includes at least one of SSB and CSI-RS.

[0234] In one embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of an SSB and a CSI-RS.

[0235] In one embodiment, the parameter of the channel state information includes at least one of an index of a best reference signal, RSRP, CQI, RI, and PMI.

[0236] In one embodiment, the parameter of the channel state information includes an index of a best reference signal; or, when the index of the best reference signal is consistent with an index of a reference signal corresponding to resources occupied by a first message of a first type of random access mechanism or a type A message of a second type of random access mechanism, the parameter of the channel state information does not include the index of the best reference signal,

[0237] When the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

[0238] In one embodiment, when the number of reference signal antenna ports is 1, the channel state information parameter does not include PMI and RI; or,

[0239] When the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of the index of the best reference signal, the reference signal received power RSRP, the channel state indication CQI, the rank indication RI, and the precoding matrix indication PMI.

[0240] In one embodiment, the best reference signal is a reference signal with the largest measurement power or a reference signal with the largest CQI.

[0241] The information receiving device proposed in this embodiment and the information receiving method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the information receiving method.

[0242] The embodiment of the present application also provides a terminal. The information reporting method can be executed by an information reporting device, which can be implemented by software and / or hardware and integrated in the terminal.

[0243] Figure 7 FIG. 1 is a schematic diagram of a terminal structure provided by an embodiment. Figure 7 As shown, a terminal provided in this embodiment includes: a processor 510 and a storage device 520. The processor in the terminal may be one or more, Figure 7 Taking a processor 510 as an example, the processor 510 and the storage device 520 in the device may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0244] The one or more programs are executed by the one or more processors 510, so that the one or more processors implement the information reporting method described in any of the above embodiments.

[0245] The storage device 520 in the terminal is a computer-readable storage medium and can be used to store one or more programs, which can be software programs, computer executable programs, and modules, such as program instructions / modules corresponding to the information reporting method in the embodiment of the present invention (for example, the attached Figure 5The modules in the information reporting device shown include: an indication information receiving module 310 and a status information reporting module 320). The processor 510 executes various functional applications and data processing of the terminal by running the software programs, instructions and modules stored in the storage device 520, that is, the information reporting method in the above method embodiment is implemented.

[0246] The storage device 520 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device (such as the indication information, channel status information, etc. in the above embodiments). In addition, the storage device 520 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 520 may further include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0247] Furthermore, when one or more programs included in the above-mentioned terminal are executed by the one or more processors 510, the following operations are implemented: receiving indication information under a random access mechanism; and reporting channel state information according to the indication information.

[0248] The embodiment of the present application also provides a service node. The information reporting method can be executed by an information reporting device, which can be implemented by software and / or hardware and integrated in the service node.

[0249] Figure 8 FIG. 1 is a schematic diagram of a structure of a service node provided by an embodiment. Figure 8 As shown, a service node provided in this embodiment includes: a processor 610 and a storage device 620. The processor in the service node may be one or more, Figure 8 Taking a processor 610 as an example, the processor 610 and the storage device 620 in the device may be connected via a bus or other means. Figure 8 The example of connecting through bus is taken in the following.

[0250] The one or more programs are executed by the one or more processors 610, so that the one or more processors implement the information reporting method described in any of the above embodiments.

[0251] The storage device 620 in the service node is a computer-readable storage medium that can be used to store one or more programs, which can be software programs, computer executable programs, and modules, such as program instructions / modules corresponding to the information reporting method in the embodiment of the present invention (for example, the attached Figure 6 The modules in the information receiving device shown include: an indication information sending module 410 and a status information receiving module 420). The processor 610 executes various functional applications and data processing of the service node by running the software programs, instructions and modules stored in the storage device 620, that is, the information reporting method in the above method embodiment is implemented.

[0252] The storage device 620 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device (such as the indication information, channel state information, etc. in the above embodiment). In addition, the storage device 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 620 may further include a memory remotely arranged relative to the processor 610, and these remote memories may be connected to the service node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0253] Furthermore, when one or more programs included in the above service node are executed by the one or more processors 610, the following operations are implemented: sending indication information under a random access mechanism; and receiving channel state information reported by the terminal according to the indication information.

[0254] The service node proposed in this embodiment and the information reporting method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the information reporting method.

[0255] An embodiment of the present application also provides a storage medium containing computer executable instructions, which are used to execute an information reporting method or an information receiving method when executed by a computer processor.

[0256] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0257] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0258] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0259] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. An information reporting method, applied to a terminal, characterized in that: include: receiving indication information under a random access mechanism; Reporting channel state information according to the indication information; The indication information is used to instruct the terminal to report the channel state information through a class A message of the second type of random access mechanism, the class A message includes a random access preamble and the channel state information, and in the case of the second type of random access mechanism, the indication information is a downlink broadcast message; The indication information includes at least one of the following: The first indication information is used to indicate the parameters included in the channel state information reported by the terminal; The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information; The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting; When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism; The reference signal includes at least one of a synchronization signal / physical broadcast channel block SSB and a channel state information reference signal CSI-RS.

2. The method according to claim 1, characterized in that The indication information is also used to instruct the terminal to report the channel state information through a third message of the first type of random access mechanism.

3. The method according to claim 2, characterized in that In the case of the first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message.

4. The method according to claim 1, characterized in that When the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by the first message in the first type of random access.

5. The method according to claim 1, characterized in that The channel state information is obtained by measuring a reference signal, where the reference signal includes at least one of an SSB and a CSI-RS.

6. The method according to claim 1, characterized in that The parameters of the channel state information include at least one of a cell index, a subcarrier index, an index of a best reference signal, RSRP, CQI, RI, and PMI.

7. The method according to claim 6, characterized in that The channel state information parameter includes an index of a best reference signal; or, In a case where the index of the best reference signal is consistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal, When the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

8. The method according to claim 6, characterized in that When the number of reference signal antenna ports is 1, the channel state information parameters do not include PMI and RI; or, When the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of a cell index, a subcarrier index, an index of a best reference signal, a reference signal received power RSRP, a channel state indication CQI, a rank indication RI, and a precoding matrix indication PMI.

9. The method according to claim 8, characterized in that The best reference signal is a reference signal with the largest measurement power or a reference signal with the largest CQI.

10. An information receiving method, applied to a service node, characterized in that: include: Sending indication information under the random access mechanism; receiving channel state information reported by the terminal according to the indication information; The indication information is used to instruct the terminal to report the channel state information through a class A message of the second type of random access mechanism, the class A message includes a random access preamble and the channel state information, and in the case of the second type of random access mechanism, the indication information is a downlink broadcast message; The indication information includes at least one of the following: The first indication information is used to indicate the parameters included in the channel state information reported by the terminal; The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information; The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting; When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism; The reference signal includes at least one of SSB and CSI-RS.

11. The method according to claim 10, characterized in that The indication information is also used to instruct the terminal to report the channel state information through a third message of the first type of random access mechanism.

12. The method according to claim 11, characterized in that In the case of the first type of random access mechanism, the indication information is a random access response message RAR or a downlink broadcast message.

13. The method according to claim 10, characterized in that When the indication information does not include the second indication information and in the case of a first type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by the first message in the first type of random access.

14. The method according to claim 10, characterized in that The channel state information is obtained by measuring a reference signal, where the reference signal includes at least one of an SSB and a CSI-RS.

15. The method according to claim 10, characterized in that The parameters of the channel state information include at least one of a cell index, a subcarrier index, an index of a best reference signal, RSRP, CQI, RI, and PMI.

16. The method according to claim 15, characterized in that The channel state information parameter includes an index of a best reference signal; or, In a case where the index of the best reference signal is consistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal, When the index of the best reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message of the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

17. The method according to claim 15, characterized in that When the number of reference signal antenna ports is 1, the channel state information parameters do not include PMI and RI; or, When the number of reference signal antenna ports is greater than 1, the parameters of the channel state information include at least one of a best cell index, a subcarrier index, a reference signal index, RSRP, CQI, RI, and PMI.

18. The method according to claim 16, characterized in that The best reference signal is a reference signal with the largest measurement power or a reference signal with the largest channel quality indicator (CQI).

19. An information reporting device, characterized in that: include: An indication information receiving module, configured to receive indication information under a random access mechanism; A status information reporting module, configured to report channel status information according to the indication information; The indication information is used to instruct the terminal to report the channel state information through a class A message of the second type of random access mechanism, the class A message includes a random access preamble and the channel state information, and in the case of the second type of random access mechanism, the indication information is a downlink broadcast message; The indication information includes at least one of the following: The first indication information is used to indicate the parameters included in the channel state information reported by the terminal; The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information; The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting; When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism; The reference signal includes at least one of a synchronization signal / physical broadcast channel block SSB and a channel state information reference signal CSI-RS.

20. An information receiving device, characterized in that: include: An indication information sending module, configured to send indication information under a random access mechanism; A state information receiving module, configured to receive channel state information reported by the terminal according to the indication information; The indication information is used to instruct the terminal to report the channel state information through a class A message of the second type of random access mechanism, the class A message includes a random access preamble and the channel state information, and in the case of the second type of random access mechanism, the indication information is a downlink broadcast message; The indication information includes at least one of the following: The first indication information is used to indicate the parameters included in the channel state information reported by the terminal; The second indication information is used to indicate a reference signal that the terminal needs to measure to calculate the channel state information; The third indication information is used to instruct the terminal to perform a reporting operation on the channel state information, where the reporting operation includes reporting and not reporting; When the indication information does not include the second indication information and in the case of a second type of random access mechanism, the reference signal required to be measured by the terminal to calculate the channel state information is a reference signal corresponding to resources occupied by a type A message of the second type of random access mechanism; The reference signal includes at least one of SSB and CSI-RS.

21. A terminal, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the information reporting method according to any one of claims 1 to 9.

22. A service node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the information receiving method according to any one of claims 10 to 18.

23. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the information reporting method as described in any one of claims 1 to 9 or the information receiving method as described in any one of claims 10 to 18 is implemented.

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