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

Abstract

The invention provides an information reporting method and device, an information receiving method and device, a terminal, a service node and a storage medium. The method comprises the following steps: receiving indication information under a random access mechanism; and reporting the channel state information according to the indication information.

Description

[0001] This application is a divisional application of the patent application with the application number 201910927938.0 (the filing date of the original application is September 27, 2019, and the invention title is Information Reporting, Receiving Method, Device, Terminal, Service Node and Storage Medium). Technical Field

[0002] This application relates to a wireless communication network, for example, to an information reporting, receiving method, device, terminal, service node and storage medium. Background Art

[0003] During wireless communication, the channel state changes constantly and has a great impact on wireless signals. For example, the quality of the channel can determine the modulation method of the signals between the communication parties and also affect the competition result during the competition process of establishing communication. In the application scenario of a Non-Terrestrial Network (NTN), the satellite base station is very far from the ground terminal, resulting in a large transmission delay. For a Low Earth Orbiting (LEO) satellite base station, the high moving speed will also cause frequent handovers of the terminal's access. Currently, the New Radio (NR) protocol lacks an effective information reporting or receiving method, resulting in the random access mechanism being unable to adapt to the channel changes, especially in scenarios with large delays and multiple handovers, greatly reducing the performance of random access and having poor reliability. Summary of the Invention

[0004] This application provides an information reporting, receiving method, device, terminal, service node and storage medium. By reporting Channel State Information (CSI) in the random access mechanism, the change of the channel state is considered, and the reliability of random access is improved.

[0005] An embodiment of this application provides an information reporting method applied to a terminal, including:

[0006] Receiving indication information under the random access mechanism;

[0007] Reporting channel state information according to the indication information.

[0008] An embodiment of this application also provides an information receiving method, including:

[0009] Sending indication information under the random access mechanism;

[0010] Receiving the channel state information reported by the terminal according to the indication information.

[0011] An embodiment of this application also provides an information reporting device, including:

[0012] An indication information receiving module, configured to receive indication information under a random access mechanism;

[0013] A status information reporting module, configured to report channel status information according to the indication information.

[0014] An embodiment of the present application further provides an information receiving device, including:

[0015] An indication information sending module, configured to send indication information under a random access mechanism;

[0016] A status information receiving module, configured to receive channel status information reported by a terminal according to the indication information.

[0017] An embodiment of the present application further provides a terminal, including:

[0018] One or more processors;

[0019] A storage device, configured to store one or more programs;

[0020] When the one or more programs are executed by the one or more processors, the one or more processors implement the above information reporting method.

[0021] An embodiment of the present application further provides a service node, including:

[0022] One or more processors;

[0023] A storage device, configured to store one or more programs;

[0024] When the one or more programs are executed by the one or more processors, the one or more processors implement the above information receiving method.

[0025] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above information reporting method or information receiving method is implemented. Description of the Drawings

[0026] Figure 1 A flowchart of an information reporting method provided for an embodiment;

[0027] Figure 2 A schematic diagram of a first type of random access mechanism in an embodiment;

[0028] Figure 3 A schematic diagram of a second type of random access mechanism in an embodiment;

[0029] Figure 4Flowchart of an information receiving method provided for an embodiment;

[0030] Figure 5 Schematic structural diagram of an information reporting device provided for an embodiment;

[0031] Figure 6 Schematic structural diagram of an information receiving device provided for an embodiment;

[0032] Figure 7 Schematic structural diagram of a terminal provided for an embodiment;

[0033] Figure 8 Schematic structural diagram of a service node provided for an embodiment. Detailed implementation manners

[0034] The present application will be described below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other. Additionally, it should be noted that for the sake of description, only parts related to the present application rather than all structures are shown in the accompanying drawings.

[0035] In the NTN and multi - handover scenarios, the satellite base station is very far from the ground terminal, resulting in a large transmission delay. For a LEO satellite base station, a moving speed of up to 7.5 km / s will also cause the terminal to perform frequent handovers. The excessive delay leads to a long duration of the random access process and a large impact from channel changes, while the frequent handovers lead to frequent random access processes. In the NR protocol, there is no mechanism to add CSI reporting during the random access process. When the service node makes a decision on contention resolution, the transmission performance during the random access process is greatly impaired due to the lack of consideration of channel state information and cannot adapt to channel changes.

[0036] This embodiment introduces a CSI reporting mechanism for random access. The terminal reports CSI to the service node, and the service node can select the best access terminal or determine the modulation method, etc. among the contending terminals according to 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.

[0037] Figure 1 Flowchart of an information reporting method provided for an embodiment. The information reporting method provided in this embodiment can be applied to a terminal, such as Figure 1 shown, this method includes step 110 and step 120.

[0038] In step 110, receive the indication information under the random access mechanism.

[0039] In one embodiment, the terminal receives the indication information sent by the serving node under the random access mechanism. The serving node may indicate to the terminal to report CSI through a Random Access Response (RAR) message or a downlink broadcast message. In one embodiment, the indication information may also be used to indicate the parameters for the terminal to report CSI, the reference signals required for calculating CSI, and the like.

[0040] In step 120, report the channel state information according to the indication information.

[0041] 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 serving node. For example, the indication information may indicate that the terminal measures the Synchronization Signal / Physical Broadcast Channel Block (SSB) and reports 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 serving node as CSI. Another example is that the indication information may indicate that the terminal measures the Channel State Information Reference Signal (CSI-RS) and reports the Channel Quality Indicator (CQI) of the best CSI-RS. Then, 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 serving node as CSI. On this basis, the serving node may make a random access decision according to the CSI reported by the terminal and send a contention resolution message to the terminal.

[0042] In one embodiment, the resource location for the terminal to report CSI corresponds to the ID of the terminal; in the case where the terminal receives and measures the downlink reference signals of multiple base stations, the resource location also corresponds to the ID of the cell.

[0043] In one embodiment, the parameters for reporting CSI can be set according to actual conditions. For example, they can be set according to the number of antenna ports, high-layer parameter configurations, etc. For example, the indication information can include the indication information of CQI, which is used to indicate that the terminal reports broadband CQI or sub-band CQI. Also, for example, the indication information can include the indication information of Precoding Matrix Indicator (PMI), which is used to indicate whether the terminal reports broadband PMI or sub-band PMI when the number of antenna ports is greater than 1; in the case of reporting sub-band PMI, when the number of ports is not 2, it can also indicate that the terminal reports a broadband PMI (i1) and a sub-band PMI (i2) for each sub-band, and when the number of ports is 2, it can also indicate that the terminal reports a sub-band PMI for each sub-band; in the case of reporting PMI, it can also indicate that the terminal reports Layer Indicator (LI) to indicate the column of the strongest layer corresponding to the codeword in the precoding matrix, etc. The above CQI, PMI, LI, etc. are all used for CSI reporting for the serving node to make decisions.

[0044] In one embodiment, the indication information is used to indicate that the terminal reports channel state information through the third message of the first type of random access mechanism; or, the indication information is used to indicate that the terminal reports channel state information through the type A message of the second type of random access mechanism.

[0045] In one embodiment, in the case of the first type of random access mechanism, the indication information is the random access response message RAR or the downlink broadcast message; in the case of the second type of random access mechanism, the indication information is the downlink broadcast message.

[0046] Figure 2 It is a schematic diagram of the first type of random access mechanism in one embodiment. As Figure 2 shown, in the first type of random access mechanism, there are four steps before the terminal establishes a connection with the serving node:

[0047] 1) The terminal sends a first message (denoted as msg1) to the serving node. Msg1 includes a random access preamble, which is used to initiate a request for contention access to the serving node. There is a contention relationship among the terminals with consistent random access preambles.

[0048] 2) After receiving msg1, the serving node sends a second message (denoted as msg2) to the terminal. Msg2 is RAR, which is used to respond to the request for contention access initiated by the terminal.

[0049] 3) The terminal sends a third message (denoted as msg3) to the serving node, which is used to report CSI according to the indication information of the serving node. Among them, the indication information can be RAR or the downlink broadcast message, and the downlink broadcast message is sent by the serving node to the terminal before step 1).

[0050] 4) The serving node sends a fourth message to the terminal. The fourth message includes a contention resolution message, indicating the contention resolution solution made by the serving node based on CSI.

[0051] In the scenario of the first type of random access mechanism, the indication information is used to indicate that the terminal reports CSI through msg3.

[0052] Figure 3 It is a schematic diagram of the second type of random access mechanism in an embodiment. As Figure 3 shown, in the second type of random access mechanism, there are two steps before the terminal establishes a connection with the serving node:

[0053] 1) The terminal sends a type-A message (denoted as msgA) to the serving node according to the indication information. MsgA includes a random access preamble and CSI, thereby initiating a contention access request and reporting CSI. Among them, the indication information is a downlink broadcast message, which is sent by the serving node to the terminal before step 1).

[0054] 2) After receiving msgA, the serving node sends a type-B message (denoted as msgB) to the terminal. MsgB includes an RAR and a contention resolution message, thereby responding to the contention access request initiated by the terminal and indicating the contention resolution solution made according to CSI.

[0055] In the scenario of the second type of random access mechanism, the indication information is used to indicate that the terminal reports CSI through msgA.

[0056] In an embodiment, the indication information includes at least one of the following: a first indication information for indicating the parameters included in the channel state information reported by the terminal; a second indication information for indicating the reference signal that the terminal needs to measure to calculate the channel state information; a third indication information for indicating the reporting operation of the channel state information by the terminal, and the reporting operation includes reporting and not reporting.

[0057] 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 indicate that the terminal calculates CSI by measuring SSB or calculates CSI by measuring CSI-RS. The third indication information is used to indicate whether the terminal needs to report CSI.

[0058] 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 serving node may pre-agree, stipulate through a protocol, or notify through other signaling, which parameters are included in the reported CSI by default, and the terminal may report these parameters during the process of reporting CSI.

[0059] In one embodiment, when the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal required for the terminal to calculate CSI is the reference signal corresponding to the resource 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 the second type of random access mechanism, the reference signal required for the terminal to calculate CSI is the reference signal corresponding to the resource occupied by the type A message in the second type of random access mechanism; wherein, the reference signal includes at least one of SSB and CSI-RS.

[0060] In this embodiment, for the case of the first type of random access mechanism and the indication information does not include the second indication information, the terminal obtains CSI by measuring the reference signal corresponding to the resource occupied by the first message, where the resource occupied by the first message is the Physical Random Access Channel (PRACH); for the case of the second type of random access mechanism and the indication information does not include the second indication information, the terminal measures the resource occupied by the type A message to obtain CSI, where the resource occupied by the type A message is the PRACH and the Physical Uplink Shared Channel (PUSCH).

[0061] In one embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of SSB and CSI-RS.

[0062] In one embodiment, the parameters of the channel state information include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0063] In one embodiment, the parameters of the channel state information include the index of the best reference signal; or,

[0064] When the index of the best reference signal is consistent with the index of the reference signal corresponding to the resource occupied by the first message for transmitting the first type of random access mechanism or the class A message of the second type of random access mechanism, the parameter of the channel state information does 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 resource occupied by the first message for transmitting the first type of random access mechanism or the class A message of the second type of random access mechanism, the parameter of the channel state information includes the index of the best reference signal.

[0065] In one embodiment, when the number of reference signal antenna ports is 1, the parameter of the channel state information does not include PMI and RI; alternatively, when the number of reference signal antenna ports is greater than 1, the parameter of the channel state information includes at least one of the index of the best reference signal, reference signal received power RSRP, channel state indicator CQI, rank indicator RI, and precoding matrix indicator PMI.

[0066] In this embodiment, when the number of reference signal antenna ports is 1, there is no need to distinguish the rank and the precoding matrix. Therefore, the parameters of the reported CSI 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 parameters of the CSI include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0067] In one embodiment, the best reference signal is the reference signal with the maximum measurement power or the reference signal with the maximum CQI.

[0068] In this embodiment, the reference signal can be SSB and CSI-RS. Measure the reference signal, use the reference signal with the maximum received power as the best reference signal, or use the reference signal with the maximum CQI as the best reference signal, and report the CSI of the best reference signal. The CSI can include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0069] In one embodiment, after reporting the channel state information according to the indication information, it further includes:

[0070] Receiving a contention resolution message generated by the serving node according to the channel state information;

[0071] When the terminal ID in the contention resolution message is consistent with the terminal ID reporting the CSI, establish a connection with the serving node.

[0072] For example, in one embodiment, the random access is an initial random access, the indication information is a downlink broadcast signal, which is used to indicate that the terminal reports 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 the RSRP, and the RSRP is obtained by measuring the SSB.

[0073] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for beams whose received power exceeds a preset threshold in the downlink SSB beams. Assume that there are a total of K downlink SSB beams (denoted as B1,..., B K ), and assume that the beam whose received power exceeds the preset threshold searched is B1. Then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0074] After receiving msg1, the serving node sends a RAR on the PDSCH;

[0075] After receiving the RAR, the terminal measures all downlink SSB beams according to the indication of the downlink broadcast signal and determines the SSB beam with the maximum received power (denoted as B k ), and reports CSI by sending msg3 to the serving node. Regardless of whether the SSB beam (B k ) with the maximum received power is the same as the SSB beam (B1) corresponding to the resource occupied by sending msg1, the parameters of the reported CSI include the index of the best SSB and the RSRP;

[0076] After receiving msg3, the serving node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0077] After receiving msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the contention fails and the random access is re-initiated.

[0078] For example, in one embodiment, the random access is an initial random access, the indication information is a downlink broadcast signal, which is used to indicate that the terminal reports 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 the RSRP, or only include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0079] In this embodiment, after receiving the downlink broadcast signal, the terminal searches for beams whose received power exceeds a preset threshold in the downlink SSB beams. Assume that there are a total of K downlink SSB beams (denoted as B1,..., B K) If the beam with the received power exceeding the preset threshold is searched and assumed to be B1, the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0080] After receiving msg1, the serving node sends RAR on the PDSCH;

[0081] After the terminal receives the RAR, according to the indication of the downlink broadcast signal, it measures all downlink SSB beams and determines the SSB beam with the maximum received power (denoted as B k ) and reports CSI to the serving node by sending msg3: When B k is the same as B1 (k = 1), the reported CSI may only include the RSRP of B k and does not include the index of B k , indicating that B1 is the best SSB with the maximum received power; When B k is different from B1 (k ∈ {1, 2,..., K}, k ≠ 1), the reported CSI includes the index and RSRP of B k ;

[0082] After receiving msg3, the serving node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0083] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are different, the contention fails and the random access is restarted.

[0084] For example, in an embodiment, the random access is an initial random access, the indication information is RAR, which is used to indicate that the terminal reports CSI in msg3 in the first type of random access mechanism. The parameters of the reported CSI include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0085] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for a beam with the received power exceeding the preset threshold in the downlink SSB beams. Assume there are K downlink SSB beams (denoted as B1,..., B K ). If the beam with the received power exceeding the preset threshold that is searched is assumed to be B1, the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0086] After receiving msg1, the serving node sends RAR on the PDSCH;

[0087] After the terminal receives the RAR, according to the indication of the RAR, it measures all downlink SSB beams and determines the SSB beam with the maximum received power (denoted as B k ), and reports the CSI by sending msg3 to the serving node. Regardless of whether the SSB beam (B k ) with the maximum received power is the same as the SSB beam (B1) corresponding to the resource occupied by sending msg1, the parameters of the reported CSI include the index of the best SSB and the RSRP;

[0088] After the serving node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0089] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the contention fails and the random access is re-initiated.

[0090] For example, in an embodiment, the random access is an initial random access, the indication information is the RAR, which is used to indicate that the terminal reports the 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 the RSRP, or only include the RSRP of the best SSB, and the RSRP is obtained by measuring the SSB.

[0091] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for the beams in the downlink SSB beams whose received power exceeds a preset threshold. Assume there are a total of K downlink SSB beams (denoted as B1,..., B K ). If the beam whose received power exceeds the preset threshold and is searched is B1, then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0092] After the serving node receives msg1, it sends the RAR on the PDSCH;

[0093] After the terminal receives the RAR, according to the indication of the RAR, it measures all downlink SSB beams and determines the SSB beam with the maximum received power (denoted as B k ), and reports the CSI by sending msg3 to the serving node: in the case where the above B k is the same as B1 (k = 1), the reported CSI may only include the RSRP of B k , and does not include the index of B k , indicating that B1 is the best SSB with the maximum received power; in the case where the above B k is not the same as B1 (k ∈ {1, 2,..., K}, k ≠ 1), the reported CSI includes B kThe index and RSRP;

[0094] After the serving node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0095] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the contention fails and a random access is initiated again.

[0096] For example, in one embodiment, the random access is a non-initial random access, and the indication information is a downlink broadcast signal, which is used to indicate that the terminal reports 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.

[0097] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for beams with received power exceeding a preset threshold in the reference signal beams (SSB beams or CSI-RS). Assume that there are a total of K reference signal beams (denoted as B1,..., B K ), and assume that the beam whose received power exceeds the preset threshold and is searched is B1. Then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0098] After the serving node receives msg1, it sends a RAR on the PDSCH;

[0099] After the terminal receives the RAR, according to the indication of the downlink broadcast signal, it measures all the downlink SSB beams and determines the reference signal beam with the maximum received power (denoted as B k ), and reports the CSI to the serving node by sending msg3. Regardless of whether B k is the same as B1, the parameters of the reported CSI include the index of the best reference signal and the RSRP. Among them, 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;

[0100] After the serving node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0101] After the terminal receives msg4, if the terminal ID included in msg4 is the same as 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 not the same, the competition fails and the terminal reinitiates random access.

[0102] For example, in one embodiment, the random access is non-initial random access, and the indication information is a downlink broadcast signal 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.

[0103] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for beams with received power exceeding a preset threshold in the reference signal beams (SSB beams or CSI-RS). Suppose there are a total of K reference signal beams (denoted as B1,..., B K ). If the beam with received power exceeding the preset threshold found is B1, the terminal sends msg1 in the uplink beam corresponding to B1. Msg1 includes a random access preamble;

[0104] After the service node receives msg1, it sends an RAR on the PDSCH;

[0105] After the terminal receives the RAR, according to the indication of the downlink broadcast signal, it measures all downlink SSB beams and determines the reference signal beam with the maximum received power (denoted as B k ). It reports the CSI to the service node by sending msg3: In the case where B k is the same as B1 (k = 1), the reported CSI may only include the RSRP of B k and does not include the index of B k , indicating that B1 is the best reference signal with the maximum received power. In the case where B k is different from B1 (k ∈ {1, 2,..., K}, k ≠ 1), the reported CSI includes the index and RSRP of B k . Among them, 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;

[0106] After the service node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0107] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the competition fails and the random access is initiated again.

[0108] For example, in one embodiment, the random access is non-initial random access, the indication information is RAR, which is used to indicate that the terminal reports 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.

[0109] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for the beam whose received power exceeds the preset threshold in the reference signal beam (SSB beam or CSI-RS). Suppose there are a total of K reference signal beams (denoted as B1,..., B K ), and the beam whose received power exceeds the preset threshold and is searched is assumed to be B1. Then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0110] After the serving node receives msg1, it sends RAR on the PDSCH;

[0111] After the terminal receives the RAR, according to the indication of the RAR, it measures all the downlink SSB beams and determines the reference signal beam with the maximum received power (denoted as B k ), and reports CSI to the serving node by sending msg3. Regardless of whether B k is the same as B1, the parameters of the reported CSI include the index of the best reference signal and the RSRP. Among them, 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;

[0112] After the serving node receives msg3, it makes a decision according to the CSI reported by the terminal and sends a contention resolution message msg4;

[0113] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the competition is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the competition fails and the random access is initiated again.

[0114] For example, in one embodiment, the random access is non-initial random access, the indication information is RAR, which is used to indicate that the terminal reports 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.

[0115] In this embodiment, after the terminal receives the downlink broadcast signal, it searches for the beam whose received power exceeds the preset threshold in the reference signal beam (SSB beam or CSI-RS). Suppose there are a total of K reference signal beams (denoted as B1,..., B K ), and the beam whose received power exceeds the preset threshold found is assumed to be B1. Then the terminal sends msg1 in the uplink beam corresponding to B1, and msg1 includes a random access preamble;

[0116] After receiving msg1, the serving node sends RAR on the PDSCH;

[0117] After receiving the RAR, the terminal measures all downlink SSB beams according to the indication of the RAR and determines the reference signal beam with the maximum received power (denoted as B k ), and reports CSI to the serving node by sending msg3: When B k is the same as B1 (k = 1), the reported CSI may only include the RSRP of B k , without including the index of B k , indicating that B1 is the best reference signal with the maximum received power; When B k is different from B1 (k ∈ {1, 2,..., K}, k ≠ 1), the reported CSI includes the index and RSRP of B k . Among them, 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;

[0118] After receiving msg3, the serving node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0119] After receiving msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, and the terminal establishes a connection with the serving node, and the random access process ends. If they are different, the contention fails, and the random access is re-initiated.

[0120] For example, in one embodiment, the indication information is a downlink broadcast signal for indicating that the terminal reports 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.

[0121] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource. Msg1 includes a random access preamble.

[0122] After receiving msg1 sent by the terminal, the serving node sends an RAR on the PDSCH.

[0123] After receiving the RAR, the terminal measures the CSI-RS according to the indication 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.

[0124] After receiving msg3, the serving node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4.

[0125] After receiving msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the contention fails and the random access is restarted.

[0126] For example, in one embodiment, the indication information is a downlink broadcast signal for indicating that the terminal reports CSI in msg3 in the first type of random access mechanism. The number of antenna ports of the serving node is greater than 1, and the parameters of the reported CSI include the CQI, CRI, RI, and PMI of the best CSI-RS.

[0127] In this embodiment, after receiving the downlink broadcast signal, the terminal sends msg1 on the corresponding PRACH resource. Msg1 includes a random access preamble.

[0128] After receiving msg1 sent by the terminal, the serving node sends an RAR on the PDSCH.

[0129] After receiving the RAR, the terminal measures the CSI-RS according to the indication 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.

[0130] After receiving msg3, the serving node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4.

[0131] 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.

[0132] 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.

[0133] 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;

[0134] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0135] 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.

[0136] After receiving msg3, the service node makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0137] 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.

[0138] 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.

[0139] 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;

[0140] After receiving msg1 sent by the terminal, the service node will send RAR on PDSCH;

[0141] 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.

[0142] After the service node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4;

[0143] After the terminal receives msg4, if the terminal ID included in msg4 is the same as the terminal ID that sent msg3, the contention is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are not the same, the contention fails and the random access is restarted.

[0144] 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 parameters of the reported CSI include the RSRP of the best reference signal and the index. If the random access is initial access, the RSRP can only be obtained by measuring the SSB; if the random access is non-initial access, the RSRP can be obtained by measuring the SSB or CSI-RS.

[0145] In this embodiment, after the terminal receives the downlink broadcast signal, according to the indication of the downlink broadcast signal, it measures the received power of all reference signals, and among the beams whose received power exceeds the threshold, it selects the beam with the earliest corresponding random access occasion (RACHOcassion, RO) (which may not be the beam with the largest received power). Assume the beam is B1 (there are a total of K beams B1,..., B K )), and sends msgA on the uplink beam corresponding to B1. MsgA includes a random access preamble and also includes CSI. Among them, regardless of whether the beam with the largest received power is B1, the parameters of the reported CSI include the RSRP of the best reference signal and the index. 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 CRI;

[0146] After the service node receives msgA, it makes a decision based on the CSI reported by the terminal and sends msgB. MsgB includes a contention resolution message and a RAR;

[0147] After the terminal receives msgB, if the terminal ID included in msgB is the same as the terminal ID that sent msgA, the contention is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are not the same, the contention fails and the random access is restarted.

[0148] In one embodiment, in the case where the beam with the largest received power is the same as B1, the parameters of the reported CSI may or may not include the index of the best reference signal.

[0149] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to indicate that the terminal reports CSI in msgA in the second 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 reference signal. If the random access is an initial access, the RSRP can only be obtained by measuring the SSB; if the random access is a non-initial access, the RSRP can be obtained by measuring the SSB or CSI-RS.

[0150] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the received power of all reference signals according to the indication of the downlink broadcast signal, and selects the beam with the earliest corresponding random access time (which may not be the beam with the maximum received power) among the beams whose received power exceeds the threshold. Assume the beam is B1 (there are a total of K beams B1,..., B K ), and sends msgA in the uplink beam corresponding to B1. MsgA includes a random access preamble and also includes CSI, where the parameters of the reported CSI include the CQI of the best reference signal.

[0151] After receiving msgA, the serving node makes a decision based on the CSI reported by the terminal and sends msgB, which includes a contention resolution message and an RAR;

[0152] After the terminal receives msgB, if the terminal ID included in msgB is the same as the terminal ID that sent msgA, the contention is successful, the terminal establishes a connection with the serving node, and the random access process ends. If they are not the same, the contention fails and a random access is re-initiated.

[0153] For example, in one embodiment, the indication information is a downlink broadcast signal, which is used to indicate that the terminal reports CSI in msgA in the second type of random access mechanism. The number of antenna ports of the serving node is greater than 1, and the parameters of the reported CSI include the CRI, RI, PMI, and CQI of the best reference signal. If the random access is an initial access, the RSRP can only be obtained by measuring the SSB; if the random access is a non-initial access, the RSRP can be obtained by measuring the SSB or CSI-RS.

[0154] In this embodiment, after receiving the downlink broadcast signal, the terminal measures the received power of all reference signals according to the indication of the downlink broadcast signal, and selects the beam with the earliest corresponding random access time (which may not be the beam with the maximum received power) among the beams whose received power exceeds the threshold. Assume the beam is B1 (there are a total of K beams B1,..., B K ), and sends msgA in the uplink beam corresponding to B1. MsgA includes a PRACH and also includes CSI, where the parameters of the reported CSI include the CRI, RI, PMI, and CQI of the best reference signal.

[0155] After the service node receives msgA, it makes a decision based on the CSI reported by the terminal and sends msgB, where msgB includes a contention resolution message and a RAR;

[0156] After the terminal receives msgB, if the terminal ID included in msgB is the same as the terminal ID that sent msgA, the contention is successful, the terminal establishes a connection with the service node, and the random access process ends. If they are not the same, the contention fails and the random access is initiated again.

[0157] For example, in one embodiment, the indication information is a broadcast signal or a RAR, which is used to indicate that the terminal reports CSI in msg3 in the first type of random access mechanism, and the CSI is reported by measuring the reference signals of different cells (including the cell to which the base station belongs). The reported parameters include the index of the cell, and also include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0158] In this embodiment, after the terminal receives the downlink broadcast signal, it sends msg1 on the corresponding PRACH resource, and msg1 includes a random access preamble;

[0159] After the service node receives msg1 sent by the terminal, it sends a RAR on the PDSCH;

[0160] After the terminal receives the RAR, according to the indication of the downlink broadcast signal or the RAR, it measures the CSI-RS and reports the CSI by sending msg3 to the service node. The reported parameters of the CSI include the index of the cell, and also include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI;

[0161] After the service node receives msg3, it makes a decision based on the CSI reported by the terminal and sends a contention resolution message msg4:

[0162] If the index of the cell in the CSI is the same as the index of the current cell, the current service node (assumed to be base station 1) sends a contention resolution message. After the terminal receives msg4, if the terminal ID included in msg4 is the same as 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 not the same, the contention fails and the random access is initiated again;

[0163] 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.

[0164] 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.

[0165] 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;

[0166] 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.

[0167] 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;

[0168] If the index of the cell in the CSI (assumed to be base station 2) is inconsistent with the index of the current cell, the current base station (assumed to be base station 1) sends a contention resolution message. After the terminal receives msgB, if the terminal ID included in msgB is the same as 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 the 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 listen for the signal sent by the base station (base station 2) corresponding to the cell index in the CSI. The configuration information of the scheduling message is the same as 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.

[0169] For the information reporting method of this embodiment, a reporting mechanism of CSI is introduced for random access. The terminal reports CSI to the serving node, and the serving node can select the best access terminal or determine the modulation method, etc. among the contending terminals according to the CSI reported by the terminal, so as to better adapt to the change of the wireless channel and improve the performance of random access.

[0170] Figure 4 A flowchart of an information receiving method provided for an embodiment, which is applied to a serving node, such as Figure 4 shown. The method provided in this embodiment includes step 210 and step 220.

[0171] In step 210, indication information under the random access mechanism is sent.

[0172] In step 220, the channel state information reported by the terminal according to the indication information is received.

[0173] 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,

[0174] The indication information is used to instruct the terminal to report the channel state information through the class A message of the second type of random access mechanism.

[0175] 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;

[0176] In the case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0177] In one embodiment, the indication information includes at least one of the following:

[0178] The first indication information, which is used to indicate the parameters included in the channel state information reported by the terminal;

[0179] Second indication information, which is used to indicate the reference signal that the terminal needs to measure for calculating the channel state information;

[0180] Third indication information, which is used to indicate the reporting operation of the terminal for the channel state information, and the reporting operation includes reporting and not reporting.

[0181] In an embodiment, when the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal that the terminal needs to measure for calculating the channel state information is the reference signal corresponding to the resource occupied by the first message in the first type of random access; or,

[0182] When the indication information does not include the second indication information and in the case of the second type of random access mechanism, the reference signal that the terminal needs to measure for calculating the channel state information is the reference signal corresponding to the resource occupied by the type A message of the second type of random access mechanism;

[0183] Wherein, 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.

[0184] In an embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of SSB and CSI-RS.

[0185] In an embodiment, the parameters of the channel state information include at least one of an index of the best reference signal, RSRP, CQI, RI, and PMI.

[0186] In an embodiment, the parameters of the channel state information include an index of the best reference signal; or,

[0187] When the index of the best reference signal is the same as the index of the reference signal corresponding to the resource 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,

[0188] When the index of the best reference signal is different from the index of the reference signal corresponding to the resource 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.

[0189] In an embodiment, when the number of antenna ports of the reference signal is 1, the parameters of the channel state information do not include PMI and RI; or,

[0190] 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 quality indicator (CQI), the rank indicator (RI), and the precoding matrix indicator (PMI).

[0191] In one embodiment, the best reference signal is the reference signal with the maximum measured power or the reference signal with the maximum CQI.

[0192] In one embodiment, after the receiving terminal reports the channel state information according to the indication information, the following steps are further included:

[0193] Sending a contention resolution message generated according to the channel state information to the terminal;

[0194] When the terminal ID in the contention resolution message is the same as the terminal ID reporting the CSI, establishing a connection with the terminal.

[0195] In this embodiment of the information receiving method, for the random access, a reporting mechanism for CSI is introduced, which instructs the terminal to report CSI to the serving node. According to the received CSI, the best access terminal is selected among the contending terminals or the modulation mode is determined, etc., so as to better adapt to the changes of the wireless channel and improve the performance of random access.

[0196] An embodiment of the present application further provides an information reporting device. Figure 5 It is a schematic structural diagram of an information reporting device provided for an embodiment. As Figure 5 shown, the information reporting device includes:

[0197] An indication information receiving module 310, configured to receive indication information under the random access mechanism;

[0198] A status information reporting module 320, configured to report channel state information according to the indication information.

[0199] In this embodiment of the information reporting device, for the random access, a reporting mechanism for CSI is introduced. The indication information receiving module receives the indication information, and the status information reporting module reports CSI to the serving node, so that the serving node can select the best access terminal among the contending terminals or determine the modulation mode, etc. according to 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.

[0200] 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,

[0201] 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.

[0202] 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;

[0203] In the case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0204] In one embodiment,

[0205] The indication information includes at least one of the following:

[0206] First indication information, used to indicate the parameters included in the channel state information reported by the terminal;

[0207] Second indication information, used to indicate the reference signal that the terminal needs to measure to calculate the channel state information;

[0208] Third indication information, used to indicate the reporting operation of the channel state information by the terminal, and the reporting operation includes reporting and not reporting.

[0209] In one embodiment, when the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resource occupied by the first message in the first type of random access; or,

[0210] When the indication information does not include the second indication information and in the case of the second type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resource occupied by the type A message of the second type of random access mechanism;

[0211] Wherein, the reference signal includes at least one of SSB and CSI-RS.

[0212] In one embodiment, the channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of SSB and CSI-RS.

[0213] In one embodiment, the parameters of the channel state information include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0214] In one embodiment, the parameters of the channel state information include the index of the best reference signal; or,

[0215] When the index of the best reference signal is consistent with the index of the reference signal corresponding to the resource 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,

[0216] In the case where the index of the optimal reference signal is inconsistent with the index of the reference signal corresponding to the resource occupied by the first message for transmitting the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameter of the channel state information includes the index of the optimal reference signal.

[0217] In one embodiment, when the number of reference signal antenna ports is 1, the parameter of the channel state information does not include PMI and RI; or,

[0218] When the number of reference signal antenna ports is greater than 1, the parameter of the channel state information includes at least one of the index of the optimal reference signal, the reference signal received power RSRP, the channel quality indicator CQI, the rank indicator RI, and the precoding matrix indicator PMI.

[0219] In one embodiment, the optimal reference signal is the reference signal with the maximum measured power or the reference signal with the maximum CQI.

[0220] 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 described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the execution of the information reporting method.

[0221] The embodiment of the present application further provides an information receiving device. Figure 6 FIG. is a schematic structural diagram of an information receiving device provided for an embodiment. As Figure 6 shown, the information reporting device includes:

[0222] An indication information sending module 410, configured to receive indication information under a random access mechanism;

[0223] A status information receiving module 420, configured to report channel state information according to the indication information.

[0224] The information receiving device of this embodiment introduces a reporting mechanism for CSI for random access. The indication information sending module instructs the terminal to report CSI, and the status information receiving module receives CSI, so that the best access terminal can be selected among competing terminals or the modulation method can be determined according to the CSI reported by the terminal, better adapting to the change of the wireless channel and improving the performance of random access.

[0225] In one embodiment, the indication information is used to instruct the terminal to report channel state information through the third message of the first type of random access mechanism; or,

[0226] The indication information is used to instruct the terminal to report channel state information through the type A message of the second type of random access mechanism.

[0227] 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;

[0228] In the case of the second type of random access mechanism, the indication information is a downlink broadcast message.

[0229] In one embodiment, the indication information includes at least one of the following:

[0230] The first indication information, which is used to indicate the parameters included in the channel state information reported by the terminal;

[0231] The second indication information, which is used to indicate the reference signal that the terminal needs to measure to calculate the channel state information;

[0232] The third indication information, which is used to indicate the reporting operation of the channel state information by the terminal, and the reporting operation includes reporting and not reporting.

[0233] In one embodiment, when the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resources occupied by the first message in the first type of random access; or,

[0234] When the indication information does not include the second indication information and in the case of the second type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resources occupied by the type A message of the second type of random access mechanism;

[0235] Wherein, the reference signal includes at least one of SSB and CSI-RS.

[0236] In one embodiment, the channel state information is obtained by measuring the reference signal, and the reference signal includes at least one of SSB and CSI-RS.

[0237] In one embodiment, the parameters of the channel state information include at least one of the index of the best reference signal, RSRP, CQI, RI, and PMI.

[0238] In one embodiment, the parameters of the channel state information include the index of the best reference signal; or,

[0239] 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 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,

[0240] In the case where the index of the optimal reference signal is inconsistent with the index of the reference signal corresponding to the resource occupied by the first message for transmitting the first type of random access mechanism or the type A message of the second type of random access mechanism, the parameter of the channel state information includes the index of the optimal reference signal.

[0241] In one embodiment, when the number of reference signal antenna ports is 1, the parameter of the channel state information does not include PMI and RI; or,

[0242] When the number of reference signal antenna ports is greater than 1, the parameter of the channel state information includes at least one of the index of the optimal reference signal, the reference signal received power RSRP, the channel quality indicator CQI, the rank indicator RI, and the precoding matrix indicator PMI.

[0243] In one embodiment, the optimal reference signal is the reference signal with the maximum measurement power or the reference signal with the maximum CQI.

[0244] The information receiving device proposed in this embodiment and the information receiving method proposed in the above embodiment belong to the same inventive concept. For technical details not described in detail in this embodiment, reference can be made to any of the above embodiments, and this embodiment has the same beneficial effects as the execution of the information receiving method.

[0245] This application embodiment also provides a terminal. The information reporting method can be executed by an information reporting device, which can be implemented in a software and / or hardware manner and integrated in the terminal. The terminal is the first user equipment that transmits the sidelink channel state information reference signal.

[0246] Figure 7 It is a schematic structural diagram of a terminal provided in an embodiment. As Figure 7 shown, a terminal provided in this embodiment includes: a processor 510 and a storage device 520. The processor in this terminal can be one or more, Figure 7 Taking one processor 510 as an example, the processor 510 and the storage device 520 in the device can be connected through a bus or other means, Figure 7 Taking the connection through the bus as an example.

[0247] 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.

[0248] The storage device 520 in this terminal, as a computer-readable storage medium, can be used to store one or more programs, and the programs can be software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the information reporting method in the embodiments of the present invention (for example, 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 software programs, instructions, and modules stored in the storage device 520, that is, implements the information reporting method in the above method embodiments.

[0249] The storage device 520 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the device (such as 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 devices. In some instances, the storage device 520 may further include a memory remotely set relative to the processor 510, and these remote memories can be connected to the terminal through a network. Examples of the above network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and their combinations.

[0250] Moreover, when one or more programs included in the above terminal are executed by the one or more processors 510, the following operations are implemented: receiving indication information under a random access mechanism; reporting channel status information according to the indication information.

[0251] The embodiment of the present application further provides a service node. The information reporting method can be executed by an information reporting device, and the information reporting device can be implemented in a software and / or hardware manner and integrated in the service node. The service node is a first user equipment that sends sidelink channel state information reference signals.

[0252] Figure 8 It is a schematic structural diagram of a service node provided for an embodiment. As Figure 8 shown, a service node provided in this embodiment includes: a processor 610 and a storage device 620. The processor in this service node can be one or more. Figure 8 Taking one processor 610 as an example, the processor 610 and the storage device 620 in the device can be connected through a bus or other means. Figure 8 Taking the connection through a bus as an example.

[0253] When the one or more programs are executed by the one or more processors 610, the one or more processors implement the information reporting method described in any of the above embodiments.

[0254] The storage device 620 in the service node, as a computer-readable storage medium, can be used to store one or more programs, which can be software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the information reporting method in the embodiments of the present invention (for example, the modules in the information receiving device shown in Figure 6 Figure 1, including: 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, implements the information reporting method in the above method embodiments.

[0255] The storage device 620 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the device (such as indication information, channel status information, etc. in the above embodiments). 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 magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the storage device 620 may further include a memory remotely provided with respect to the processor 610, and these remote memories can be connected to the service node through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0256] Moreover, 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; receiving channel status information reported by the terminal according to the indication information.

[0257] The service node proposed in this embodiment and the information reporting method proposed in the above embodiment belong to the same inventive concept. Technical details not described in detail in this embodiment can be referred to in any of the above embodiments, and this embodiment has the same beneficial effects as the execution of the information reporting method.

[0258] This application embodiment also provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute an information reporting method or an information receiving method when executed by a computer processor.

[0259] From the above description of the embodiments, those skilled in the art can understand that the present application can be implemented by means of software and general-purpose hardware, or can be implemented 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 floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disc of a computer, etc., including a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in any embodiment of the present application.

[0260] As described above, the above are only exemplary embodiments of the present application and are not used to limit the protection scope of the present application.

[0261] Any block diagram of a logical process in the drawings of the present application may represent program steps, or may represent interconnected logical circuits, modules and functions, or may represent a combination of program steps and logical 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 devices and systems (digital versatile disc DVD or CD optical disc), etc. The computer-readable medium can include a non-transitory storage medium. 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.

[0262] Through exemplary and non-limiting examples, a detailed description of the exemplary embodiments of the present application has been provided above. However, considering the accompanying drawings and the claims, various modifications and adjustments to the above embodiments will be obvious to those skilled in the art, but do not deviate 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, It includes: Receiving indication information under the random access mechanism; Reporting channel state information according to the indication information.

2. The method according to claim 1, wherein The indication information is used to indicate that the terminal reports channel state information through the third message of the first type of random access mechanism.

3. The method according to claim 2, wherein 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 2, wherein The indication information includes at least one of the following: The first indication information, which is used to indicate the parameters included in the channel state information reported by the terminal; The second indication information, which is used to indicate the reference signal that the terminal needs to measure to calculate the channel state information; The third indication information, which is used to indicate the reporting operation of the channel state information by the terminal, and the reporting operation includes reporting and not reporting.

5. The method according to claim 4, wherein In the case where the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resource occupied by the first message in the first type of random access; wherein, 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; In the case where the indication information does not include the first indication information, the parameters that are default included in the channel state information reported by the terminal are agreed in advance between the terminal and the serving node, specified by a protocol, or notified by a signaling, and the parameters are reported during the reporting process of the channel state information.

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

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

8. The method according to claim 7, wherein The parameters of the channel state information include the index of the best reference signal; or, In the case where the index of the best reference signal is the same as the index of the reference signal corresponding to the resource occupied by the first message for transmitting the first type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal, In the case where the index of the best reference signal is different from the index of the reference signal corresponding to the resource occupied by the first message for transmitting the first type of random access mechanism, the parameters of the channel state information include the index of the best reference signal.

9. The method according to claim 7, wherein In the case where the number of antenna ports of the reference signal is 1, the parameters of the channel state information do not include PMI and RI; or, In the case where the number of antenna ports of the reference signal 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 the best reference signal, a reference signal received power RSRP, a channel state indication CQI, a rank indication RI, and a precoding matrix indication PMI.

10. The method according to claim 7, wherein when the random access is non-initial random access and the indication information indicates that the terminal reports channel state information on the third message of the first type of random access mechanism, the parameters of the channel state information include: the RSRP of the best reference signal; or the RSRP of the best reference signal and the index of the best reference signal.

11. The method according to any one of claims 7-10, characterized in that, The best reference signal is the reference signal with the maximum measurement power or the reference signal with the maximum CQI.

12. An information receiving method, applied to a service node, characterized in that, including: sending indication information under the random access mechanism; receiving the channel state information reported by the terminal according to the indication information.

13. The method according to claim 12, wherein the indication information is used to indicate that the terminal reports channel state information on the third message of the first type of random access mechanism.

14. The method according to claim 13, wherein 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.

15. The method according to claim 13, wherein the indication information includes at least one of the following: the first indication information, which is used to indicate the parameters included in the channel state information reported by the terminal; the second indication information, which is used to indicate the reference signal that the terminal needs to measure to calculate the channel state information; the third indication information, which is used to indicate the reporting operation of the channel state information by the terminal, and the reporting operation includes reporting and not reporting.

16. The method according to claim 15, wherein when the indication information does not include the second indication information and in the case of the first type of random access mechanism, the reference signal that the terminal needs to measure to calculate the channel state information is the reference signal corresponding to the resources occupied by the first message in the first type of random access; wherein the reference signal includes at least one of SSB and CSI-RS; when the indication information does not include the first indication information, the parameters that are default included in the channel state information reported by the terminal are indicated through prior agreement between the terminal and the serving node, through protocol provisions, or through signaling notification, and the parameters are reported during the reporting process of the channel state information.

17. The method according to claim 12, wherein The channel state information is obtained by measuring a reference signal, and the reference signal includes at least one of SSB and CSI-RS.

18. The method according to claim 12, wherein the parameters of the channel state information include at least one of a cell index, a subcarrier index, an index of the best reference signal, RSRP, CQI, RI, and PMI.

19. The method according to claim 18, wherein the parameters of the channel state information include the index of the best reference signal; or when the index of the best reference signal is the same as the index of the reference signal corresponding to the resources occupied by the first message for transmitting the first type of random access mechanism, the parameters of the channel state information do not include the index of the best reference signal. In the case where the index of the optimal reference signal is inconsistent with the index of the reference signal corresponding to the resources occupied by the first message for transmitting the first type of random access mechanism, the parameter of the channel state information includes the index of the optimal reference signal.

20. The method according to claim 18, characterized in that when the number of reference signal antenna ports is 1, the parameter of the channel state information does not include PMI and RI; or when the number of reference signal antenna ports is greater than 1, the parameter of the channel state information includes at least one of the optimal cell index, subcarrier index, index of the reference signal, RSRP, CQI, RI, and PMI.

21. The method according to claim 18, characterized in that in the case where the random access is non-initial random access and the indication information indicates that the terminal reports the channel state information in the third message of the first type of random access mechanism, the parameter of the channel state information includes: RSRP of the optimal reference signal; or RSRP of the optimal reference signal and the index of the optimal reference signal.

22. The method according to any one of claims 18 - 21, characterized in that, The optimal reference signal is the reference signal with the maximum measured power or the reference signal with the maximum channel state indication CQI.

23. An information reporting device, characterized in that, Comprising: An indication information receiving module, configured to receive the indication information under the random access mechanism; A state information reporting module, configured to report the channel state information according to the indication information.

24. An information receiving device, characterized in that, Comprising: An indication information sending module, configured to send the indication information under the random access mechanism; A state information receiving module, configured to receive the channel state information reported by the terminal according to the indication information.

25. A terminal, characterized in that, Comprising: 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 1-11.

26. A service node, characterized in that, Comprising: 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 12-22.

27. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the information reporting method according to any one of claims 1-11 or the information receiving method according to any one of claims 12-22.

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