Indication transmission, reception method and apparatus, communication apparatus, and storage medium

Abstract

The present disclosure relates to indication sending, receiving method and device, communication device and storage medium, wherein the indication sending method comprises: sending indication information to a second terminal, wherein the indication information is used to indicate a manner in which the second terminal acquires first system information, and the first system information belongs to system information requested by the second terminal to be acquired by the first terminal. According to the present disclosure, no matter whether the first terminal can return the first system information requested by the second terminal to the second terminal, the manner in which the second terminal acquires the first system information can be reasonably indicated through the indication information, so that the second terminal acquires the first system information as soon as possible, and ensures that the service which needs to be based on the first system information can be smoothly carried out.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to an instruction transmission method, an instruction reception method, an instruction transmission device, an instruction reception device, a communication device, and a computer-readable storage medium. Background Technology

[0002] To support direct communication between terminals, a sidelink communication method was introduced, allowing terminals to establish sidelink communication connections via a PC-5 interface. Based on this sidelink connection, terminals can communicate with the base station without directly communicating with it, instead using other terminals as relays.

[0003] Taking terminal A and terminal B as an example, after establishing a sidelink communication connection between terminal A and terminal B, terminal A can communicate with the base station through terminal B. For example, when terminal A needs to obtain system information, it can send a system information acquisition request to terminal B. After receiving the system information from the base station, terminal B can forward it to terminal A.

[0004] Because different terminals may have varying capabilities, the system information they acquire may also differ. For example, terminal A might send a system information retrieval request for information that terminal B cannot obtain. In this situation, terminal A in the relevant technical center will either wait for terminal B to return the system information or resend the system information retrieval request to terminal B. However, because terminal B cannot obtain the system information, waiting for terminal B to return the system information will cause terminal A's services based on the requested system information to be interrupted, while resending the system information retrieval request to terminal B will cause terminal A to waste signaling overhead. Summary of the Invention

[0005] In view of the above, embodiments of this disclosure provide an instruction transmission method, an instruction reception method, an instruction transmission device, an instruction reception device, a communication device, and a computer-readable storage medium to solve the technical problems in the related art.

[0006] According to a first aspect of the present disclosure, an instruction sending method is provided, executed by a first terminal, the method comprising: sending instruction information to a second terminal, wherein the instruction information is used to indicate the method by which the second terminal obtains first system information, the first system information being system information requested by the second terminal from the first terminal.

[0007] According to a second aspect of the present disclosure, an instruction receiving method is provided, executed by a second terminal, the method comprising: sending a system information acquisition request to a first terminal for requesting acquisition of first system information; receiving instruction information sent by the first terminal; and determining a method for acquiring the first system information based on the instruction information.

[0008] According to a third aspect of the present disclosure, an instruction sending apparatus is provided, the apparatus comprising: a sending module configured to send instruction information to a second terminal, wherein the instruction information is used to indicate a method by which the second terminal obtains first system information, the first system information being system information requested by the second terminal from the first terminal.

[0009] According to a fourth aspect of the present disclosure, an indication receiving apparatus is provided, the apparatus comprising: a sending module configured to send a system information acquisition request to a first terminal for requesting acquisition of first system information; a receiving module configured to receive indication information sent by the first terminal; and a processing module configured to determine a method for acquiring the first system information based on the indication information.

[0010] According to a fifth aspect of the present disclosure, a communication apparatus is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above-described instruction transmission method and / or instruction reception method.

[0011] According to a sixth aspect of the present disclosure, a computer-readable storage medium is provided for storing a computer program that, when executed by a processor, implements the steps in the above-described instruction sending method and / or instruction receiving method.

[0012] According to embodiments of this disclosure, regardless of whether the first terminal can return the first system information requested by the second terminal to the second terminal, the second terminal can be reasonably instructed in the manner of obtaining the first system information through the instruction information, so that the second terminal can obtain the first system information as soon as possible and ensure that the business that needs to be based on the first system information can be carried out smoothly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic flowchart illustrating an instruction sending method according to an embodiment of the present disclosure.

[0015] Figure 2 This is a schematic flowchart illustrating another instruction sending method according to embodiments of the present disclosure.

[0016] Figure 3 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0017] Figure 4 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0018] Figure 5 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0019] Figure 6 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0020] Figure 7 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0021] Figure 8 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0022] Figure 9 This is a schematic flowchart illustrating another instruction sending method according to an embodiment of the present disclosure.

[0023] Figure 10 This is a schematic flowchart illustrating an instruction receiving method according to an embodiment of the present disclosure.

[0024] Figure 11 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure.

[0025] Figure 12 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure.

[0026] Figure 13 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure.

[0027] Figure 14 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure.

[0028] Figure 15 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure.

[0029] Figure 16 This is a schematic block diagram of an instruction sending device according to an embodiment of the present disclosure.

[0030] Figure 17 This is a schematic block diagram of an instruction receiving device according to an embodiment of the present disclosure.

[0031] Figure 18 This is a schematic block diagram illustrating an apparatus for instructing transmission and / or instructing reception according to embodiments of the present disclosure. Detailed Implementation

[0032] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0033] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0034] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0035] For the sake of brevity and ease of understanding, this document uses the terms "greater than" or "less than", "higher than" or "lower than" to describe size relationships. However, it will be understood by those skilled in the art that the term "greater than" also includes the meaning of "greater than or equal to", and "less than" also includes the meaning of "less than or equal to"; the term "higher than" also includes the meaning of "higher than or equal to", and "lower than" also includes the meaning of "lower than or equal to".

[0036] Figure 1This is a schematic flowchart illustrating an instruction transmission method according to an embodiment of the present disclosure. The instruction transmission method shown in this embodiment can be executed by a first terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The first terminal can communicate with network-side devices, which include, but are not limited to, network-side devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0037] The first terminal can also communicate with the second terminal. For example, after establishing a communication connection with the second terminal, it can communicate with the second terminal. The established communication connection can be a sidelink (direct link) communication connection, and the communication methods include, but are not limited to, unicast, multicast, and broadcast.

[0038] The second terminal can send a system information acquisition request to the first terminal, requesting the first terminal to send first system information to the second terminal. The first terminal can receive system information from the network-side device, and if the received system information includes the first system information, it can send the first system information to the second terminal. In this case, the communication method between the first terminal and the second terminal can include unicast.

[0039] For example, the first terminal can receive system information broadcast by the network-side device, or it can receive system information unicast by the network-side device (such as on-demand system information). Upon determining that it has obtained the first system information, it sends it to the second terminal. In this case, the second terminal can obtain the first system information without directly communicating with the network-side device; specifically, it obtains the first system information through the first terminal. In this scenario, the first terminal can be called a relay terminal (relay UE (User Equipment),) and the second terminal can be called a remote terminal (remote UE).

[0040] However, since different terminals may have different capabilities, the system information they obtain may also differ. For example, when a second terminal needs to perform certain services, the first system information it requests includes the first SIB (System Information Block). However, the system information that the first terminal can receive from the network-side device only includes the second SIB. The second SIB is different from the first SIB, so the first terminal cannot send the first SIB to the second terminal.

[0041] In this situation, if the second terminal continues to wait for the first terminal to return the first SIB, the required services will not be able to be performed due to the lack of support from the first SIB, which will lead to the service terminal being unable to perform. If the second terminal resends the system information acquisition request to the first terminal to obtain the first system information, since the first terminal cannot send the first SIB to the second terminal, it will lead to a waste of the second terminal's communication resources. For example, if the system information acquisition request is carried in the signaling, it will cause a waste of signaling overhead.

[0042] The operation of the first terminal obtaining system information and the operation of the second terminal requesting to obtain the first system information can be performed in a connected state or in a disconnected state (e.g., idle state or inactive state), and the specific choice can be made as needed.

[0043] Furthermore, the first terminal and the second terminal in all embodiments of this disclosure are interchangeable. For example, when the first terminal acts as a relay terminal, the second terminal can act as a remote terminal; conversely, when the second terminal acts as a relay terminal, it can also act as a remote terminal. A given terminal can function as both a first terminal and a second terminal, depending on the scenario in which it is located. For instance, if the terminal can communicate directly with network-side devices, it can act as a first terminal; if it cannot communicate directly with network-side devices, it can act as a second terminal.

[0044] like Figure 1 As shown, the instruction sending method may include the following steps:

[0045] In step S101, an instruction message is sent to the second terminal, wherein the instruction message is used to indicate the method by which the second terminal obtains the first system information, which is system information that the second terminal requests to obtain from the first terminal.

[0046] In one embodiment, after determining that the second terminal requests to obtain the first system information, the first terminal may send an instruction message to the second terminal, instructing the second terminal on how to obtain the first system information, thereby enabling the second terminal to determine how to obtain the first system information.

[0047] Therefore, regardless of whether the first terminal can return the first system information requested by the second terminal to the second terminal, the instruction information can reasonably instruct the second terminal on how to obtain the first system information so that the second terminal can obtain the first system information as soon as possible and ensure that the business that needs to be based on the first system information can be carried out smoothly.

[0048] For example, the first terminal can first receive a system information acquisition request sent by the second terminal for obtaining the first system information, and then determine whether the first system information can be sent to the second terminal based on the system information.

[0049] If the first system information can be sent to the second terminal, then the sent instruction information can include the first system information, which is used to instruct the second terminal to directly obtain the first system information from the instruction information.

[0050] If the first system information cannot be sent to the second terminal, the sent instruction information can be used to instruct the first terminal to refuse to send the first system information to the second terminal, so that the second terminal can reselect other terminals to establish a communication connection, such as reselecting other terminals as relay terminals, and then sending system information acquisition requests to other terminals to obtain the first system information from other terminals.

[0051] Figure 2 This is a schematic flowchart illustrating another instruction sending method according to embodiments of the present disclosure. Figure 2 As shown, the method further includes:

[0052] In step S201, the first system information requested by the second terminal is determined based on the system information acquisition request sent by the second terminal.

[0053] In one embodiment, the second terminal may send a system information retrieval request to the first terminal to request the retrieval of first system information. The first terminal may retrieve the system information after receiving the system information retrieval request from the second terminal, and during the process of retrieving the system information, determine whether it is possible to retrieve the first system information.

[0054] It should be noted that in all embodiments of this disclosure, the system information that the second terminal needs to obtain can be determined according to the services that the second terminal needs to perform. For example, if it needs to perform location services, it can request to obtain system information related to location. If it needs to perform cell reselection services, it can request to obtain system information related to cell reselection.

[0055] Since the services required by the second terminal may change, the system information requested by the second terminal may also change. Therefore, the second terminal is not limited to sending a system information retrieval request to the first terminal to obtain the first system information. For example, when the services change in the future, it may also send a system information retrieval request to the first terminal to obtain the second system information.

[0056] Figure 3 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 3As shown, the indication information includes first indication information, and sending the indication information to the second terminal includes:

[0057] In step S301, in response to the failure to obtain valid first system information, a first indication message is sent to the second terminal, wherein the first indication message is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0058] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then attempt to acquire valid first system information during the process of acquiring system information.

[0059] If the first terminal fails to obtain valid first system information, it cannot return the first system information to the second terminal. Therefore, the instruction information sent to the second terminal may specifically be a first instruction information, which instructs the first terminal to refuse to send the first system information to the second terminal.

[0060] Based on the first instruction information, the second terminal can determine that the first terminal has refused to send the first system information to the second terminal. Therefore, it can obtain the first system information by reselecting another terminal and sending an information retrieval request to that other terminal. Accordingly, when the first terminal cannot return the first system information to the second terminal, this avoids the waste of resources caused by the second terminal resending the system information retrieval request to the first terminal, and also avoids service interruption caused by the second terminal continuing to wait for the first terminal to return the first system information (because the second terminal can reselect another terminal based on the first instruction information, thereby obtaining the first system information from that terminal as quickly as possible to perform its business).

[0061] Figure 4 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 4 As shown, the indication information includes second indication information, and sending the indication information to the second terminal includes:

[0062] In step S401, in response to obtaining valid first system information, second indication information is sent to the second terminal, wherein the second indication information carries the first system information.

[0063] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then attempt to acquire the valid first system information during the process of acquiring valid system information.

[0064] If the first terminal successfully obtains valid first system information, it can return the first system information to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be second instruction information, which carries the first system information. Accordingly, the second terminal can directly obtain the first system information from the second instruction information.

[0065] Figure 5 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 5 As shown, the method further includes:

[0066] In step S501, the first system information requested by the second terminal is determined according to the system information acquisition request sent by the second terminal;

[0067] In step S502, valid system information is obtained;

[0068] In step S503, it is determined whether the first system information exists among the valid system information that has been acquired.

[0069] In one embodiment, regarding the determination of whether system information is valid, the first terminal can determine whether the acquired system information needs to be updated based on the instructions from the network-side device (e.g., broadcast SIB1). If no update is needed, the acquired system information is valid. If an update is needed, the terminal can determine the updated system information based on the instructions from the network-side device and then acquire the updated system information as valid system information. This determination method also applies to determining whether the first system information is valid.

[0070] In one embodiment, the second terminal may send a system information acquisition request to the first terminal to request the acquisition of first system information. The first terminal first acquires valid system information, and then receives the system information acquisition request sent by the second terminal. Therefore, it can determine whether the first system information requested by the second terminal exists among the already acquired valid system information.

[0071] In one embodiment, obtaining valid system information includes:

[0072] Obtain all available and valid system information.

[0073] Currently, when a terminal obtains valid system information, it generally does so based on the business it needs to perform. However, the system information required for that business is only a portion of all the system information that the terminal can obtain.

[0074] To ensure that the second terminal obtains the requested first system information as quickly as possible, in this embodiment, the first terminal, when obtaining valid system information, is not limited to obtaining the system information required for the business it needs to perform, but can obtain all valid system information that can be obtained. Therefore, upon receiving the system information acquisition request from the second terminal, it can relatively comprehensively determine whether the first terminal's valid system information contains the first system information requested by the second terminal. If the first system information is present among the valid system information obtained, it can be sent to the second terminal so that the second terminal can obtain the first system information as quickly as possible without having to select another terminal to obtain it.

[0075] Figure 6 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 6 As shown, sending the instruction information to the second terminal includes:

[0076] In step S601, in response to the absence of the first system information in the acquired valid system information, a first indication information is sent to the second terminal, wherein the first indication information is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0077] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then determine whether the first system information exists among the valid system information that has already been acquired.

[0078] If there is no valid first system information among the valid system information that has been obtained, then the first system information cannot be returned to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be the first instruction information, which is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0079] Based on the first instruction information, the second terminal can determine that the first terminal has refused to send the first system information to the second terminal. Therefore, it can obtain the first system information by reselecting another terminal and sending an information retrieval request to that other terminal. Accordingly, when the first terminal cannot return the first system information to the second terminal, this avoids the waste of resources caused by the second terminal resending the system information retrieval request to the first terminal, and also avoids service interruption caused by the second terminal continuing to wait for the first terminal to return the first system information (because the second terminal can reselect another terminal based on the first instruction information, thereby obtaining the first system information from that terminal as quickly as possible to perform its business).

[0080] Figure 7This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 7 As shown, sending the instruction information to the second terminal includes:

[0081] In step S701, in response to the presence of the first system information in the acquired valid system information, a second indication information is sent to the second terminal, wherein the second indication information carries the first system information.

[0082] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then determine whether the first system information exists among the valid system information that has already been acquired.

[0083] If valid first system information exists among the already acquired valid system information, then the first system information can be returned to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be second instruction information, which carries the first system information. Accordingly, the second terminal can directly obtain the first system information from the second instruction information.

[0084] Figure 8 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 8 As shown, the indication information includes a first timeout value corresponding to the first timer;

[0085] In step S801, the indication information is used to instruct the second terminal to start the first timer when sending a system information acquisition request, and to stop sending the system information acquisition request again before the first timer reaches the first timeout value.

[0086] In one embodiment, the first terminal can send the first timeout value of the first timer to the second terminal through the indication information to indicate the manner in which the second terminal obtains the first system information. For example, the first timeout value can indicate the minimum period for the second terminal to request to obtain system information, and the minimum period is equal to the first timeout value.

[0087] For example, when the instruction information carries the first timeout value of the first timer, the first instruction information can instruct the second terminal to start the first timer when sending the second system information acquisition request, and to stop sending the system information acquisition request again before the first timer reaches the first timeout value.

[0088] Accordingly, when the second terminal sends a system information acquisition request based on the received instruction information, it can start a first timer. Before the first timer reaches a first timeout value, the second terminal can stop sending the system information acquisition request. In this way, the resource waste caused by the second terminal sending system information acquisition requests too frequently can be avoided.

[0089] It should be noted that the second terminal can stop sending system information retrieval requests for the first system information before the first timer expires (reaches the first timeout value). However, when it needs to request second system information that is different from the first system information, it can send a system information retrieval request for the second system information to the first terminal before the first timer expires. Therefore, while avoiding frequent sending of system information retrieval requests for the first system information, it can ensure that system information retrieval requests for the second system information are sent in a timely manner.

[0090] Figure 9 This is a schematic flowchart illustrating yet another instruction sending method according to embodiments of the present disclosure. Figure 9 As shown, the indication information includes a second timeout value corresponding to the second timer;

[0091] In step S901, the indication information is used to instruct the second terminal to start the second timer when sending a system information acquisition request. When the second timer reaches the second timeout value, if the first system information requested by the system information acquisition request is not received, it is determined that the first system information acquisition has failed. Alternatively, a communication connection is re-established with another terminal, and a system information acquisition request is sent to the re-selected terminal.

[0092] In one embodiment, the first terminal can send the second timeout value of the second timer to the second terminal via the indication information to indicate the method by which the second terminal obtains the first system information. For example, the second timeout value can indicate the relative time at which the second terminal determines whether obtaining the first system information has failed.

[0093] For example, when the instruction information carries the second timeout value of the second timer, the second instruction information can instruct the second terminal to start the second timer when sending a system information acquisition request. When the second timer reaches the second timeout value, it is determined whether the acquisition of the first system information has failed. If the first system information requested by the system information acquisition request is not received when the second timer reaches the second timeout value, it is determined that the acquisition of the first system information has failed.

[0094] Accordingly, when the second terminal sends a system information acquisition request based on the received instruction information, it can start a second timer. When the second timer reaches the second timeout value, it can determine whether the first system information returned by the first terminal has been received. If the first system information has not been received, it can determine that the acquisition of the first system information has failed. Alternatively, it can re-select another terminal to establish a communication connection and send a system information acquisition request (e.g., a system information acquisition request for requesting the first system information) to the re-selected other terminal.

[0095] If the second terminal determines that the acquisition of the first system information has failed, the action performed by the second terminal may be to stop requesting the first system information, or to re-establish a communication connection with another terminal (e.g., sidelink) and send an information acquisition request to the other terminal to obtain the first system information. The specific action to be performed can be determined as needed.

[0096] Figure 10 This is a schematic flowchart illustrating an instruction receiving method according to an embodiment of the present disclosure. The instruction receiving method shown in this embodiment can be executed by a second terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The second terminal can communicate directly or indirectly (e.g., through a first terminal) with network-side devices, including, but not limited to, network-side devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0097] like Figure 10 As shown, the indication receiving method may include the following steps:

[0098] In step S1001, a system information acquisition request is sent to the first terminal to request the acquisition of first system information;

[0099] In step S1002, the instruction information sent by the first terminal is received;

[0100] In step S1003, the method for obtaining the first system information is determined based on the indication information. In one embodiment, the second terminal may send a system information acquisition request to the first terminal to request the acquisition of the first system information. After obtaining the system information (e.g., valid system information), the first terminal may send indication information to the second terminal, instructing the second terminal on the method for acquiring the first system information, thereby enabling the second terminal to determine how to acquire the first system information.

[0101] Therefore, regardless of whether the first terminal can return the first system information requested by the second terminal to the second terminal, the instruction information can reasonably instruct the second terminal on how to obtain the first system information so that the second terminal can obtain the first system information as soon as possible and ensure that the business that needs to be based on the first system information can be carried out smoothly.

[0102] For example, the first terminal can first receive a system information acquisition request sent by the second terminal for obtaining the first system information, and then determine whether the first system information can be sent to the second terminal based on the system information.

[0103] If the first system information can be sent to the second terminal, then the sent instruction information can include the first system information, which is used to instruct the second terminal to directly obtain the first system information from the instruction information.

[0104] If the first system information cannot be sent to the second terminal, the sent instruction information can be used to instruct the first terminal to refuse to send the first system information to the second terminal, so that the second terminal can reselect other terminals to establish a communication connection, such as reselecting other terminals as relay terminals, and then sending system information acquisition requests to other terminals to obtain the first system information from other terminals.

[0105] Figure 11 This is a schematic flowchart illustrating another instruction receiving method according to embodiments of the present disclosure. Figure 11 As shown, the indication information includes first indication information, which is used to instruct the first terminal to refuse to send the first system information to the second terminal;

[0106] The method of determining the acquisition of the first system information based on the indication information includes:

[0107] In step S1101, it is determined that the first terminal refuses to send the first system information to the second terminal based on the first indication information;

[0108] In step S1102, it is determined that the first system information acquisition failed, or, another terminal is selected to establish a communication connection (e.g., sidelink), and a system information acquisition request is sent to the other selected terminal.

[0109] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then attempt to acquire the valid first system information during the process of acquiring valid system information.

[0110] If the first terminal fails to obtain valid first system information, it cannot return the first system information to the second terminal. Therefore, the instruction information sent to the second terminal may specifically be a first instruction information, which instructs the first terminal to refuse to send the first system information to the second terminal.

[0111] Based on the first instruction information, the second terminal can determine that the first terminal has refused to send the first system information to the second terminal. It can then re-establish a communication connection with another terminal (e.g., a sidelink) and send an information retrieval request to that other terminal to obtain the first system information. Therefore, when the first terminal cannot return the first system information to the second terminal, it avoids wasting resources by having the second terminal resend the system information retrieval request to the first terminal, and avoids service interruption caused by the second terminal continuing to wait for the first terminal to return the first system information (because the second terminal can re-select another terminal based on the first instruction information, thereby obtaining the first system information from that terminal as quickly as possible to perform its business).

[0112] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then determine whether the first system information exists among the valid system information that has already been acquired.

[0113] If there is no valid first system information among the valid system information that has been obtained, then the first system information cannot be returned to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be the first instruction information, which is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0114] Based on the first instruction information, the second terminal can determine that the first terminal has refused to send the first system information to the second terminal. It can then re-establish a communication connection with another terminal (e.g., a sidelink) and send an information retrieval request to that other terminal to obtain the first system information. Therefore, when the first terminal cannot return the first system information to the second terminal, it avoids wasting resources by having the second terminal resend the system information retrieval request to the first terminal, and avoids service interruption caused by the second terminal continuing to wait for the first terminal to return the first system information (because the second terminal can re-select another terminal based on the first instruction information, thereby obtaining the first system information from that terminal as quickly as possible to perform its business).

[0115] When the second terminal determines, based on the first instruction information, that the first terminal refuses to send the first system information to the second terminal, its actions can be either to re-establish a communication connection with another terminal or to determine that the acquisition of the first system information has failed. If the acquisition of the first system information has failed, the second terminal can either stop requesting the first system information or re-establish a communication connection with another terminal and send an information acquisition request to that other terminal to obtain the first system information. The specific action taken can be determined as needed.

[0116] Figure 12 This is a schematic flowchart illustrating yet another instruction receiving method according to embodiments of the present disclosure. Figure 12 As shown, the indication information includes second indication information, which carries the first system information;

[0117] The method of determining the acquisition of the first system information based on the indication information includes:

[0118] In step S1201, the first system information is determined according to the second indication information.

[0119] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then attempt to acquire the valid first system information during the process of acquiring valid system information.

[0120] If the first terminal successfully obtains valid first system information, it can return the first system information to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be second instruction information, which carries the first system information. Accordingly, the second terminal can directly obtain the first system information from the second instruction information.

[0121] In one embodiment, after receiving a system information acquisition request sent by a second terminal, the first terminal can determine the first system information that the second terminal needs to acquire, and then determine whether the first system information exists among the valid system information that has already been acquired.

[0122] If valid first system information exists among the already acquired valid system information, then the first system information can be returned to the second terminal. Therefore, the instruction information sent to the second terminal can specifically be second instruction information, which carries the first system information. Accordingly, the second terminal can directly obtain the first system information from the second instruction information.

[0123] Figure 13 This is a schematic flowchart illustrating yet another instruction receiving method according to embodiments of the present disclosure. Figure 13 As shown, the indication information includes a first timeout value corresponding to the first timer;

[0124] The method of determining the acquisition of the first system information based on the indication information includes:

[0125] In step S1301, the first timer is started when the system information acquisition request is sent;

[0126] In step S1302, before the first timer reaches the first timeout value, the system information acquisition request is stopped from being sent again.

[0127] In one embodiment, the first terminal can send the first timeout value of the first timer to the second terminal through the indication information to indicate the manner in which the second terminal obtains the first system information. For example, the first timeout value can indicate the minimum period for the second terminal to request to obtain system information, and the minimum period is equal to the first timeout value.

[0128] For example, when the instruction information carries the first timeout value of the first timer, the first instruction information can instruct the second terminal to start the first timer when sending the second system information acquisition request, and to stop sending the system information acquisition request again before the first timer reaches the first timeout value.

[0129] Accordingly, when the second terminal sends a system information acquisition request based on the received instruction information, it can start a first timer. Before the first timer reaches a first timeout value, the second terminal can stop sending the system information acquisition request. In this way, the resource waste caused by the second terminal sending system information acquisition requests too frequently can be avoided.

[0130] Figure 14 This is a schematic flowchart illustrating yet another instruction receiving method according to embodiments of the present disclosure. Figure 14 As shown, the method further includes:

[0131] In step S1401, if it is necessary to request the second system information before the first timer reaches the first timeout value, a system information acquisition request is sent to request the acquisition of the second system information.

[0132] In one embodiment, the second terminal may stop sending system information retrieval requests for the first system information before the first timer expires (reaches the first timeout value). However, when it is necessary to request second system information that is different from the first system information, a system information retrieval request for the second system information may be sent to the first terminal before the first timer expires. Accordingly, while avoiding frequent sending of system information retrieval requests for the first system information, it can be ensured that system information retrieval requests for the second system information are sent in a timely manner.

[0133] In one embodiment, the method further includes: restarting the first timer.

[0134] After sending a system information retrieval request to obtain information about the second system, the terminal can restart the first timer and stop sending the system information retrieval request again before the first timer expires, thus avoiding resource waste caused by the second terminal sending system information retrieval requests too frequently.

[0135] Specifically, the terminal can associate the requested system information with a first timer, thereby limiting the frequency of system information retrieval requests corresponding to each associated system information. For example, if the terminal needs to request first system information, it can associate the first system information with the first timer, thus limiting the sending cycle of system information retrieval requests for the first system information; similarly, if the terminal needs to request both first and second system information, it can associate both system information with the first timer, thereby limiting the sending cycle of system information retrieval requests for both the first and second system information.

[0136] Figure 15 This is a schematic flowchart illustrating yet another instruction receiving method according to embodiments of the present disclosure. Figure 15 As shown, the indication information includes a second timeout value corresponding to the second timer;

[0137] The method of determining the acquisition of the first system information based on the indication information includes:

[0138] In step S1501, the second timer is started when the system information acquisition request is sent;

[0139] In step S1502, when the second timer reaches the second timeout value, if the first system information is not received, it is determined that the acquisition of the first system information has failed. Alternatively, a new communication connection is established with another terminal, and a system information acquisition request is sent to the newly selected terminal.

[0140] In one embodiment, the first terminal can send the second timeout value of the second timer to the second terminal via the indication information to indicate the method by which the second terminal obtains the first system information. For example, the second timeout value can indicate the relative time at which the second terminal determines whether obtaining the first system information has failed.

[0141] For example, when the instruction information carries the second timeout value of the second timer, the second instruction information can instruct the second terminal to start the second timer when sending a system information acquisition request. When the second timer reaches the second timeout value, it is determined whether the acquisition of the first system information has failed. If the first system information requested by the system information acquisition request is not received when the second timer reaches the second timeout value, it is determined that the acquisition of the first system information has failed.

[0142] Accordingly, when the second terminal sends a system information acquisition request based on the received instruction information, it can start a second timer. When the second timer reaches the second timeout value, it can determine whether the first system information returned by the first terminal has been received. If the first system information has not been received, it can determine that the acquisition of the first system information has failed. Alternatively, it can re-select another terminal to establish a communication connection and send a system information acquisition request (e.g., a system information acquisition request for requesting the first system information) to the re-selected other terminal.

[0143] If the second terminal determines that the acquisition of the first system information has failed, the action performed by the second terminal may be to stop requesting the first system information, or to re-establish a communication connection with another terminal (e.g., sidelink) and send an information acquisition request to the other terminal to obtain the first system information. The specific action to be performed can be determined as needed.

[0144] Corresponding to the aforementioned embodiments of the instruction transmission method and instruction reception method, this disclosure also provides embodiments of the instruction transmission device and the instruction reception device.

[0145] Figure 16 This is a schematic block diagram illustrating an instruction transmitting device according to an embodiment of the present disclosure. The instruction transmitting device shown in this embodiment can be applied to a first terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The first terminal can communicate with network-side devices, which include, but are not limited to, network-side devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0146] like Figure 16 As shown, the instruction sending device may include:

[0147] The sending module 1601 is configured to send indication information to the second terminal, wherein the indication information is used to indicate the method by which the second terminal obtains the first system information, which is system information that the second terminal requests to obtain from the first terminal.

[0148] In one embodiment, the apparatus further includes:

[0149] The processing module is configured to determine the first system information requested by the second terminal based on the system information acquisition request sent by the second terminal.

[0150] In one embodiment, the indication information includes first indication information, and the sending module is configured to send the first indication information to the second terminal in response to not obtaining valid first system information, wherein the first indication information is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0151] In one embodiment, the indication information includes second indication information, and the sending module is configured to send the second indication information to the second terminal in response to obtaining valid first system information, wherein the second indication information carries the first system information.

[0152] In one embodiment, the apparatus further includes:

[0153] The processing module is configured to determine the first system information requested by the second terminal based on the system information acquisition request sent by the second terminal; the receiving module is configured to acquire valid system information; the processing module is further configured to determine whether the first system information exists among the acquired valid system information.

[0154] In one embodiment, the receiving module is configured to acquire all available valid system information.

[0155] In one embodiment, the sending module is configured to send a first indication message to the second terminal in response to the absence of the first system information in the acquired valid system information, wherein the first indication message is used to instruct the first terminal to refuse to send the first system information to the second terminal.

[0156] In one embodiment, the sending module is configured to send second indication information to the second terminal in response to the presence of the first system information in the acquired valid system information, wherein the second indication information carries the first system information.

[0157] In one embodiment, the indication information includes a first timeout value corresponding to a first timer;

[0158] The instruction information is used to instruct the second terminal to start the first timer when sending a system information acquisition request, and to stop sending the system information acquisition request again before the first timer reaches the first timeout value.

[0159] In one embodiment, the indication information includes a second timeout value corresponding to the second timer;

[0160] The indication information is used to instruct the second terminal to start the second timer when sending a system information acquisition request. When the second timer reaches the second timeout value, if the first system information requested by the system information acquisition request is not received, it is determined that the first system information acquisition has failed. Alternatively, a communication connection is re-established with another terminal, and a system information acquisition request is sent to the re-selected terminal.

[0161] Figure 17 This is a schematic block diagram illustrating an indication receiving device according to an embodiment of the present disclosure. The indication receiving device shown in this embodiment can be applied to a second terminal, which includes, but is not limited to, communication devices such as mobile phones, tablets, wearable devices, sensors, and IoT devices. The second terminal can communicate directly or indirectly (e.g., through a first terminal) with network-side devices, including, but not limited to, network-side devices in 4G, 5G, and 6G communication systems, such as base stations and core networks.

[0162] like Figure 17 As shown, the indication receiving device may include:

[0163] The sending module 1701 is configured to send a system information acquisition request to the first terminal to request the acquisition of the first system information;

[0164] The receiving module 1702 is configured to receive indication information sent by the first terminal;

[0165] The processing module 1703 is configured to determine the method of obtaining the first system information based on the indication information.

[0166] In one embodiment, the indication information includes first indication information, used to indicate that the first terminal refuses to send the first system information to the second terminal;

[0167] The processing module is configured to determine, based on the first indication information, that the first terminal refuses to send the first system information to the second terminal; determine that the acquisition of the first system information has failed; or, re-select another terminal to establish a communication connection and send a system information acquisition request to the re-selected other terminal.

[0168] In one embodiment, the indication information includes second indication information, which carries the first system information;

[0169] The processing module is configured to determine the first system information based on the second indication information.

[0170] In one embodiment, the indication information includes a first timeout value corresponding to a first timer;

[0171] The processing module is configured to start the first timer when sending the system information acquisition request; and to stop sending the system information acquisition request again before the first timer reaches the first timeout value.

[0172] In one embodiment, the sending module is further configured to send a system information acquisition request to request the second system information if it is necessary to request the second system information before the first timer reaches the first timeout value.

[0173] In one embodiment, the processing module is further configured to restart the first timer.

[0174] In one embodiment, the indication information includes a second timeout value corresponding to the second timer;

[0175] The processing module is configured to start the second timer when the system information acquisition request is sent; when the second timer reaches the second timeout value, if the first system information is not received, it is determined that the acquisition of the first system information has failed, or, a new terminal is selected to establish a communication connection, and a system information acquisition request is sent to the new terminal.

[0176] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments of the relevant methods, and will not be elaborated upon here.

[0177] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0178] Embodiments of this disclosure also provide a communication device, comprising: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, it implements the instruction transmission method and / or instruction reception method described in any of the above embodiments.

[0179] Embodiments of this disclosure also provide a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the steps in the instruction sending method and / or instruction receiving method described in any of the above embodiments.

[0180] Figure 18 This is a schematic block diagram illustrating an apparatus 1800 for instructing transmission and / or instructing reception according to embodiments of the present disclosure. For example, apparatus 1800 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0181] Reference Figure 18 The device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power supply component 1806, a multimedia component 1808, an audio component 1810, an input / output (I / O) interface 1812, a sensor component 1814, and a communication component 1816.

[0182] Processing component 1802 typically controls the overall operation of device 1800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1802 may include one or more processors 1820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 1802 may include one or more modules to facilitate interaction between processing component 1802 and other components. For example, processing component 1802 may include a multimedia module to facilitate interaction between multimedia component 1808 and processing component 1802.

[0183] Memory 1804 is configured to store various types of data to support the operation of device 1800. Examples of this data include instructions for any application or method operating on device 1800, contact data, phonebook data, messages, pictures, videos, etc. Memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0184] Power supply component 1806 provides power to various components of device 1800. Power supply component 1806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 1800.

[0185] Multimedia component 1808 includes a screen that provides an output interface between the device 1800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1808 includes a front-facing camera and / or a rear-facing camera. When the device 1800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0186] Audio component 1810 is configured to output and / or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive external audio signals when device 1800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1804 or transmitted via communication component 1816. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[0187] I / O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0188] Sensor assembly 1814 includes one or more sensors for providing status assessments of various aspects of device 1800. For example, sensor assembly 1814 may detect the on / off state of device 1800, the relative positioning of components such as the display and keypad of device 1800, changes in position of device 1800 or a component of device 1800, the presence or absence of user contact with device 1800, the orientation or acceleration / deceleration of device 1800, and temperature changes of device 1800. Sensor assembly 1814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0189] Communication component 1816 is configured to facilitate wired or wireless communication between device 1800 and other devices. Device 1800 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G LTE, 5G NR, or combinations thereof. In one exemplary embodiment, communication component 1816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0190] In an exemplary embodiment, the apparatus 1800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), indicators, microindicators, microprocessors, or other electronic components to perform the methods described above.

[0191] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 1804 including instructions, which can be executed by a processor 1820 of the device 1800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0192] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0193] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0194] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0195] The methods and apparatus provided in the embodiments of this disclosure have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this disclosure. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this disclosure. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this disclosure. Therefore, the content of this specification should not be construed as a limitation of this disclosure.

Claims

1. A method of indicating transmission, characterized by, The method is performed by a first terminal, and comprises: sending, to a second terminal, indication information, wherein the indication information is used to indicate a manner in which the second terminal acquires first system information, the first system information being system information requested by the second terminal to be acquired from the first terminal; in a case where the first terminal can acquire valid first system information, the indication information containing the first system information, the indication information being used to indicate that the second terminal acquires the first system information from the indication information; in a case where the first terminal cannot acquire valid first system information, the indication information being used to indicate that the first terminal refuses to send the first system information to the second terminal; wherein the first system information requested by the second terminal is determined according to a system information acquisition request sent by the second terminal, all valid system information that can be acquired is acquired, and it is determined whether the first system information exists in the acquired valid system information, the system information including on-demand system information.

2. The method of claim 1, wherein, The method further comprises: determining the first system information requested by the second terminal according to a system information acquisition request sent by the second terminal.

3. The method of claim 2, wherein, The sending of the indication information to the second terminal comprises: in response to the first system information not existing in the acquired valid system information, sending first indication information to the second terminal, wherein the first indication information is used to indicate that the first terminal refuses to send the first system information to the second terminal.

4. The method of claim 2, wherein, The sending of the indication information to the second terminal comprises: in response to the first system information existing in the acquired valid system information, sending second indication information to the second terminal, wherein the second indication information carries the first system information.

5. The method of claim 1, wherein, The indication information comprises a first timeout value corresponding to a first timer; the indication information is used to indicate that the second terminal starts the first timer when sending the system information acquisition request, and stops sending the system information acquisition request again before the first timer reaches the first timeout value.

6. The method of claim 1, wherein, The indication information comprises a second timeout value corresponding to a second timer; the indication information is used to indicate that the second terminal starts the second timer when sending the system information acquisition request, and determines that the first system information acquisition fails, or reselects another terminal to establish a communication connection and sends a system information acquisition request to the reselected terminal, when the second timer reaches the second timeout value and the first system information requested by the system information acquisition request is not received.

7. A method of indicating reception, characterized by, The method is performed by a second terminal, and comprises: sending, to a first terminal, a system information acquisition request for requesting to acquire first system information, the first system information including all valid system information that can be acquired by the first terminal, the system information including on-demand system information; receiving indication information sent by the first terminal; determining a manner in which the first system information is acquired according to the indication information; and acquiring the first system information according to the determined manner. In a case that the first terminal is capable of sending the first system information to the second terminal, the indication information contains the first system information, and the indication information is used to instruct the second terminal to acquire the first system information from the indication information, and in a case that the first system information exists in the acquired valid system information, the first terminal is capable of sending the first system information to the second terminal; In a case that the first terminal is incapable of sending the first system information to the second terminal, the indication information is used to instruct the first terminal to refuse to send the first system information to the second terminal.

8. The method of claim 7, wherein, The indication information comprises first indication information, which is used to instruct the first terminal to refuse to send the first system information to the second terminal. The manner of acquiring the first system information according to the indication information comprises: determining, according to the first indication information, that the first terminal refuses to send the first system information to the second terminal; determining that the acquisition of the first system information fails, or reselecting other terminals to establish a communication connection and sending a system information acquisition request to the reselected other terminals.

9. The method of claim 7, wherein, The indication information comprises second indication information, and the second indication information carries the first system information. The manner of acquiring the first system information according to the indication information comprises: determining the first system information according to the second indication information.

10. The method of claim 7, wherein, The indication information comprises a first timeout value corresponding to a first timer. The manner of acquiring the first system information according to the indication information comprises: starting the first timer when the system information acquisition request is sent; stopping the system information acquisition request from being sent again before the first timer reaches the first timeout value.

11. The method of claim 10, wherein, The method further comprises: before the first timer reaches the first timeout value, if the second system information needs to be requested, sending a system information acquisition request for requesting to acquire the second system information.

12. The method of claim 11, wherein, The method further comprises: restarting the first timer.

13. The method of claim 7, wherein, The indication information comprises a second timeout value corresponding to a second timer. The manner of acquiring the first system information according to the indication information comprises: starting the second timer when the system information acquisition request is sent; when the second timer reaches the second timeout value, if the first system information is not received, determining that the acquisition of the first system information fails, or reselecting other terminals to establish a communication connection and sending a system information acquisition request to the reselected other terminals.

14. An indication transmitting apparatus, characterized by comprising: The apparatus comprises: a sending module configured to send indication information to a second terminal, wherein the indication information is used to instruct a manner of acquiring first system information by the second terminal, and the first system information belongs to system information requested by the second terminal to be acquired by a first terminal; in a case that the first terminal is capable of sending the first system information to the second terminal, the indication information contains the first system information, and the indication information is used to instruct the second terminal to acquire the first system information from the indication information; In a case that the first terminal is unable to send the first system information to the second terminal, the indication information is used to indicate that the first terminal refuses to send the first system information to the second terminal. The first system information is determined according to the system information acquisition request sent by the second terminal, and the first system information requested to be acquired by the second terminal is determined.

15. An indication receiving device, characterized in that, The apparatus comprises: The sending module is configured to send a system information acquisition request to the first terminal, and the system information acquisition request is used to request to acquire the first system information, wherein the first system information comprises all valid system information that can be acquired by the first terminal, and the system information comprises on-demand system information. The receiving module is configured to receive indication information sent by the first terminal. The processing module is configured to determine the manner of acquiring the first system information according to the indication information. In a case that the first terminal is able to send the first system information to the second terminal, the indication information contains the first system information, and the indication information is used to indicate the second terminal to acquire the first system information from the indication information. In a case that the first terminal is unable to send the first system information to the second terminal, the indication information is used to indicate that the first terminal refuses to send the first system information to the second terminal.

16. A communications device, characterized by The apparatus comprises: A processor; A memory for storing a computer program; When the computer program is executed by the processor, the method in any one of claims 1 to 13 is implemented.

17. A computer readable storage medium for storing a computer program, characterized in that, When the computer program is executed by the processor, the steps in the method in any one of claims 1 to 13 are implemented.

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