CN115918166A

CN115918166A - Method and device for controlling information transmission of relay equipment

Info

Publication number: CN115918166A
Application number: CN202280003476.3A
Authority: CN
Inventors: 杨星
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-04-04
Also published as: WO2024065127A1

Abstract

The embodiment of the application discloses a method and a device for controlling information transmission of relay equipment, which can be applied to a communication system, and the method comprises the following steps: the communication equipment sends indication information to the relay equipment, wherein the indication information is used for indicating the state parameter of the remote equipment and indicating the relay equipment to determine whether to send the system information to the remote equipment according to the state parameter of the remote equipment. In the embodiment of the application, whether the relay equipment sends the system information to the remote equipment can be indicated through the indication information, so that signaling overhead caused by unnecessary sending of the system information can be avoided.

Description

Method and device for controlling information transmission of relay equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling information transmission of a relay device.

Background

In order to support direct communication between terminal Equipment (also called User Equipment, UE) and UE, a Sidelink communication mode is introduced, and an interface between UE and UE is PC-5. One UE may not directly connect to a network device (e.g., a base station) but may implement communication with the network device through relay of another UE, where the UE without connection to the network device is called a remote UE (relay UE), the UE providing the relay function is called a relay UE (relay UE), and the remote UE and the relay UE communicate with each other through a Sidelink, which is called a U2N (UE to NW, terminal device to network) relay.

The remote device is configured with multipath transmission, and the relay device does not need to send system information to the remote device, but the relay device still sends the system information to the remote device, which results in an increase in signaling overhead.

Disclosure of Invention

The embodiment of the application provides a method and a device for controlling information transmission of relay equipment, which can control the relay equipment to transmit system information to remote equipment through indication information, thereby avoiding signaling overhead caused by the condition that the system information is not required to be transmitted but is still transmitted.

In a first aspect, an embodiment of the present application provides a method for controlling information transmission of a relay device, where the method includes:

and sending indication information to the relay equipment, wherein the indication information is used for indicating the state parameters of the remote equipment and indicating the relay equipment to determine whether to send system information to the remote equipment according to the state parameters of the remote equipment.

In the embodiment of the application, the communication device sends the indication information to the relay device, wherein the indication information is used for indicating the state parameter of the remote device and indicating the relay device to determine whether to send the system information to the remote device according to the state parameter of the remote device. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

In a second aspect, an embodiment of the present application provides another method for controlling information transmission of a relay device, where the method includes:

receiving indication information sent by communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment;

and determining whether to send system information to the remote equipment or not according to the state information in the indication information.

In the embodiment of the application, the relay device receives indication information sent by the communication device, the indication information is used for indicating the state parameter of the remote device, and whether to send the system information to the remote device is determined according to the state parameter in the indication information. The relay equipment can be indicated not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

In a third aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus has a function of implementing part or all of the functions of the terminal device in the method according to the first aspect, for example, the function of the communication apparatus may have the functions in part or all of the embodiments in the present application, or may have the functions of implementing any one of the embodiments in the present application separately. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device may include a transceiver module and a processing module configured to support the communication device to perform the corresponding functions of the above method. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds computer programs and data necessary for the communication device.

In a fourth aspect, the present invention provides another communication apparatus, where the communication apparatus has some or all of the functions of the network device in the method example described in the second aspect, for example, the functions of the communication apparatus may have the functions in some or all of the embodiments in the present application, or may have the functions of implementing any of the embodiments in the present application separately. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device may include a transceiver module and a processing module in a structure, where the processing module is configured to support the communication device to perform corresponding functions in the method described above. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds computer programs and data necessary for the communication device.

In a fifth aspect, an embodiment of the present application provides a communication device, which includes a processor, and when the processor calls a computer program in a memory, the processor performs the method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a communication device, which includes a processor, and when the processor calls a computer program in a memory, the processor executes the method according to the second aspect.

In a seventh aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory, where the memory stores a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the first aspect.

In an eighth aspect, an embodiment of the present application provides a communication apparatus, including a processor and a memory, where the memory stores a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method of the second aspect.

In a ninth aspect, embodiments of the present application provide a communication device, which includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to cause the device to perform the method according to the first aspect.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, which includes a processor and an interface circuit, where the interface circuit is configured to receive code instructions and transmit the code instructions to the processor, and the processor is configured to execute the code instructions to cause the apparatus to perform the method according to the second aspect.

In an eleventh aspect, the present invention provides a communication system, which includes the communication apparatus in the third aspect and the communication apparatus in the fourth aspect, or the system includes the communication apparatus in the fifth aspect and the communication apparatus in the sixth aspect, or the system includes the communication apparatus in the seventh aspect and the communication apparatus in the eighth aspect, or the system includes the communication apparatus in the ninth aspect and the communication apparatus in the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium, configured to store instructions for the terminal device, where the instructions, when executed, cause the terminal device to perform the method according to the first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for the network device, where the instructions, when executed, cause the network device to perform the method of the second aspect.

In a fourteenth aspect, the present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fifteenth aspect, the present application also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In a sixteenth aspect, the present application provides a chip system, which includes at least one processor and an interface, and is configured to enable a terminal device to implement the functions according to the first aspect, for example, to determine or process at least one of data and information related to the method. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the terminal device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a seventeenth aspect, the present application provides a chip system, which includes at least one processor and an interface, for enabling a network device to implement the functions related to the second aspect, for example, to determine or process at least one of data and information related to the method. In one possible design, the system-on-chip further includes a memory for storing computer programs and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In an eighteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a nineteenth aspect, the present application provides a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 3 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 4 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 5 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 6 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 7 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 8 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 9 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 10 is a flowchart illustrating another method for controlling information transmission of a relay device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a chip according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. Depending on the context, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" for purposes of brevity and ease of understanding, the terms "greater than" or "less than", "above" or "below" are used herein when characterizing the size relationship. But it will be understood by those skilled in the art that: the term "greater than" also encompasses the meaning of "greater than or equal to," less than "also encompasses the meaning of" less than or equal to; the term "above" encompasses the meaning of "above equal to" and "below" also encompasses the meaning of "below equal to".

For ease of understanding, terms referred to in the present application will be first introduced.

In a device-to-network (UE to NW, U2N) relay scenario, a remote device may not directly connect with a base station but may communicate with the base station through another relay device. For example, UE a may not directly connect to the base station but communicate with the base station through a relay of another UE B, where UE a not connected to the base station is called a remote UE (remote UE), and UE B providing a relay function is called a relay UE (relay UE), and the remote UE and the relay UE communicate with each other through a sidelink unicast. Here, a Direct Link (Direct Link) in which the UE is directly connected to the base station and an Indirect Link (Indirect Link) in which the UE is connected to the base station through the relay UE are referred to.

In a device-to-device (UE-to-UE, U2U) relay scenario, a remote device may communicate with another device through sidelink, or may implement communication between two devices through a relay device. For example, UE a may not directly connect with UE B, but rather, the connection with UE B is achieved through the relay of UE C. The UE A and the UE C are remote UEs, the UE B providing the relay function is a relay UE, and all the UEs communicate through sidelink unicast. The direct link is called sidelink when UE a directly maintains unicast connection with UE B, and the indirect link is called sidelink when UE a maintains unicast connection with UE B through relay UE.

In order to better understand the method for controlling information transmission of the relay device disclosed in the embodiment of the present application, a communication system to which the embodiment of the present application is applied is first described below.

Referring to fig. 1, fig. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure. The communication system may include, but is not limited to, one network device and two terminal devices, the number and form of the devices shown in fig. 1 are only for example and do not constitute a limitation to the embodiments of the present disclosure, and two or more network devices may be included in practical applications. The communication system shown in fig. 1 is exemplified by a system including one network device 101 and two terminal devices UE (e.g., a first terminal device 102 and a second terminal device 103).

It is worth mentioning that, in the wireless communication system shown in fig. 1, the first terminal device 102 and the second terminal device 103 communicate via a Sidelink direct link. In some embodiments, the first terminal device 102 may not be directly connected to the network device 101, but may implement communication with the network device 101 through a relay of the second terminal device 103, where the first terminal device 102 that is not connected to the network device 101 is referred to as a remote UE (remote UE), the second terminal device 103 that provides a relay function is referred to as a relay UE (relay UE), and unicast communication is performed between the remote UE and the relay UE through a Sidelink, and this architecture is referred to as U2N (UE to NW, terminal device to network) relay.

In some embodiments, the first terminal device 102 and the network device 101 may establish a Direct Link (Direct Link) and an Indirect Link (Indirect Link). The direct link is a link in which the first terminal device 102 is directly connected to the network device 101, and the indirect link is a link in which the first terminal device 102 is indirectly connected to the network device 101 through the second terminal device 103, where it should be noted that the first terminal device 102 serves as a remote UE and the second terminal device 103 serves as a relay UE. In this way, the remote UE can maintain a connection with the network device through a direct link and an indirect link at the same time, and this function is called Multipath connection (Multipath), so that the remote UE can support Multipath transmission, and thus the transmission rate and the transmission reliability can be improved. It should be noted that the remote UE must be in a connected state to support the multipath connection.

It should be noted that the first terminal apparatus 102 serves as a remote UE, and the second terminal apparatus 103 serves as a relay UE. The Bearer of the remote UE may be transmitted only through a Direct path, referred to as a Direct Bearer (Direct Bearer), may be transmitted only through an Indirect path, referred to as an Indirect Bearer (Indirect Bearer), or may be transmitted through both the Direct path and the Indirect path, referred to as a multi-path Bearer (multi Bearer). The cell to which the remote UE is directly connected and the cell to which the relay UE is connected may be the same or different.

It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems. For example: a Long Term Evolution (LTE) system, a fifth generation (5th generation, 5g) mobile communication system, a 5G New air interface (New Radio, NR) system, or other future New mobile communication systems. It should be further noted that the side links in the embodiment of the present application may also be referred to as side links or through links.

The network device 101 in the embodiment of the present application is an entity for transmitting or receiving signals on the network side. For example, the network device 101 may be an evolved NodeB (eNB), a Transmission Point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a Wireless Fidelity (WiFi) system. The embodiments of the present application do not limit the specific technologies and the specific device forms used by the network devices. The network device provided in the embodiment of the present application may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a Control Unit (Control Unit), and a protocol layer of a network device, such as a base station, may be split by using a structure of CU-DU, functions of a part of the protocol layer are placed in the CU for centralized Control, and functions of the remaining part or all of the protocol layer are Distributed in the DU, and the DU is centrally controlled by the CU.

The terminal device 102 in the embodiment of the present application is an entity, such as a mobile phone, on the user side for receiving or transmitting signals. The Terminal device may also be referred to as a Terminal device (Terminal), a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal device (MT), or the like. The terminal device may be an automobile with a communication function, a Smart automobile, a Mobile Phone (Mobile Phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in Industrial Control (Industrial Control), a wireless terminal device in unmanned driving (Self-driving), a wireless terminal device in Remote Surgery (Remote Medical Surgery), a wireless terminal device in Smart Grid (Smart Grid), a wireless terminal device in Transportation Safety (Transportation Safety), a wireless terminal device in Smart City (Smart City), a wireless terminal device in Smart Home (Smart Home), and the like. The embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.

In sidelink communication, there are 4 sidelink transmission modes. The sidelink transmission mode 1 and sidelink transmission mode 2 are used for Device-To-Device (D2D) communication. Sidelink transmission mode 3 and sidelink transmission mode 4 are used for V2X communication. When side link transmission mode 3 is employed, resource allocation is scheduled by network device 101. Specifically, the network device 101 may transmit the resource allocation information to the terminal device 102, and then the terminal device 102 allocates the resource to another terminal device, so that the other terminal device can transmit the information to the network device 101 through the allocated resource. In V2X communication, a terminal device with a good signal or high reliability may be used as the terminal device 102. The first terminal device mentioned in the embodiment of the present application may refer to the terminal device 102, and the second terminal device may refer to the other terminal device.

It is to be understood that the communication system described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation to the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows that along with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

It should be noted that the method for controlling information transmission of the relay device provided in any embodiment of the present application may be executed alone, or may be executed in combination with possible implementation methods in other embodiments, and may also be executed in combination with any technical solution in the related art.

The method for controlling information transmission of a relay device and the apparatus thereof provided by the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present disclosure. The method for controlling the relay device information transmission is executed by the communication device, and the method can include but is not limited to the following steps:

s201, sending indication information to the relay equipment, wherein the indication information is used for indicating the state parameters of the remote equipment and indicating the relay equipment to determine whether to send system information to the remote equipment according to the state parameters of the remote equipment.

In the embodiment of the present application, the relay device may be a relay device in a U2N relay scenario, or may be a relay device in a device-to-device U2U relay scenario.

It should be noted that, in order to improve the transmission rate and the transmission reliability, the remote device may maintain a connection with the network through a direct link and an indirect link at the same time, and this function is called Multipath (Multipath) transmission or Multipath connection. It will be appreciated that the remote device is in a connected state to support multi-path transmission.

In a scenario of multipath transmission, the remote device may include a primary path and a secondary path, that is, one of a direct link and an indirect link in the multipath transmission may be the primary path, and the other may be the secondary path.

The remote device is configured with multipath transmission, the remote device can directly acquire system information from a network device such as a base station, and accordingly the relay device does not need to send the system information to the remote device. In addition, if the cell to which the remote device is connected through the main path is different from the cell of the relay device, the relay device does not need to transmit the system information to the remote device. Alternatively, the System Information may be a System Information Block1 (SIB 1).

In order to avoid the problem that the relay device still sends the system information to the remote device in the two scenarios to increase signaling consumption, in the embodiment of the present application, the communication device may send indication information to the relay device, and the indication information indicates whether the relay device sends the system information to the remote device.

In some implementations, the indication information is used to indicate a status parameter of the remote device, and instruct the relay device to determine whether to send the system information to the remote device according to the status parameter of the remote device. Therefore, after the relay equipment receives the indication information, the relay equipment can determine the state parameters of the remote equipment and determine whether the remote equipment meets the set condition of not sending the system information or not; if the set condition is met, the relay equipment does not send system information to the remote equipment; if the set condition is not satisfied, the relay device may send system information to the remote device. Alternatively, the setting condition may include one of the following conditions:

the remote device is configured with multipath transmission;

the remote device is configured with a multipath bearer;

the remote equipment is configured with multi-path transmission and an indirect link is an auxiliary path; and

the remote equipment is configured with multi-path transmission, the indirect path is a secondary path, and a first serving cell of the remote equipment is different from a second serving cell of the relay equipment.

It should be noted that the first serving cell of the remote device is a cell to which the remote device is currently accessed, and the second serving cell of the relay device is a cell to which the relay device is currently accessed. Optionally, the first serving cell of the remote device and the second serving cell of the relay device may be the same or different. The first serving cell and the second serving cell may be Primary cells (Pcell).

In the embodiment of the application, the communication device sends the indication information to the relay device, wherein the indication information is used for indicating the state parameter of the remote device and indicating the relay device to determine whether to send the system information to the remote device according to the state parameter of the remote device. The relay equipment can be instructed not to send the system information to the remote equipment under the condition of meeting the set condition through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

In the above embodiment, the communication device may be a remote device or a network-side device. In the following embodiments, two embodiments of the remote device and the network side device are specifically described.

Referring to fig. 3, fig. 3 is a schematic flowchart of a method for controlling information transmission of a relay device according to an embodiment of the present disclosure. The method for controlling the relay device information transmission is executed by the remote device, and the method can include but is not limited to the following steps:

s301, the remote device sends indication information to the relay device, the indication information is used for indicating the state parameter of the remote device and indicating the relay device to determine whether to send the system information to the remote device according to the state parameter of the remote device.

In this embodiment, the indication information may include at least one of the following status parameters: the method comprises the steps of multipath indication information, multipath bearing indication information, path type indication information of an indirect link of the remote equipment and identification of a first service cell of the remote equipment when a main path of the remote equipment is a direct link.

Alternatively, if the indication information includes a plurality of status parameters, the plurality of status parameters may be separately transmitted to the relay device or may be transmitted to the relay device together.

Optionally, the multipath indication information may indicate to the relay device whether the remote device is configured for multipath transmission. In some implementations, the remote device sends the multipath indication information to the relay device upon determining that it configures multipath transmission.

The Bearer of the remote device may be transmitted through a Direct link, which is called Direct Bearer (Direct Bearer), or through an Indirect link, which is called Indirect Bearer (Indirect Bearer), or through both the Direct link and the Indirect link, which is called Multipath Bearer (Multipath Bearer).

Optionally, the multipath bearer indication information may indicate to the relay device whether the remote device configures the multipath bearer. In some implementations, the remote device sends the multipath bearer indication information to the relay device when determining that the remote device configures the multipath bearer.

Alternatively, the path type indication information of the indirect link may indicate to the relay device whether the indirect link is the primary path. In some implementations, the remote device may determine a path type of its own indirect link and send path type indication information of the indirect link to the relay device. In some implementations, the path type indication is indication information sent to the relay device after determining whether the indirect link is the main path, where the far-end device is often configured with multipath transmission, and accordingly, the intermediate device may determine whether the far-end device is configured with multipath transmission and the indirect link is the main path after receiving the path type indication information.

Optionally, when the remote device determines that its main path is a direct link, the remote device may send the identifier of the first serving cell of the remote device to the relay device. That is, the identifier of the first serving cell of the remote device is sent to the relay device as a kind of indication information. In some implementations, the identifier of the first serving cell is indication information that is sent to the relay device only when the first serving cell where the remote device is located is determined to be different from the second serving cell where the relay device is located when the remote device is configured with multipath transmission and the main path is the direct link. Accordingly, after receiving the identifier of the first serving cell, the intermediate device may determine that the remote device is configured with multipath transmission and the direct link is a primary path, and that the first serving cell is different from the second serving cell.

It should be noted that, when determining that the main path of the remote device is the direct link, the remote device may determine whether the first serving cell where the remote device is located is the same as the second serving cell where the relay device is located, and when the first serving cell is different from the second serving cell, the remote device may send the identifier of the first serving cell to the relay device. In the case that the first serving cell is different from the second serving cell, the remote device may not send the identifier of the first serving cell to the relay device. Correspondingly, the relay device determines that the main path of the remote device is the direct link but does not receive the identifier of the first serving cell according to the indication information, and then can determine that the first serving cell is the same as the second serving cell.

Optionally, when determining that the type of the indirect link is the secondary path, the remote device sends a release request indication of the system information to the relay device. In some implementations, the release request indication for system information may be sl-RequestedSIB-List, which carries remoteueinformationsildelink message.

Alternatively, the far-end device may determine a path for transmitting a wireless Signaling Bearer (SRB) as the primary path.

Alternatively, the remote device may determine a path that triggers Radio Resource Control (RRC) connection reestablishment by the remote device when the path fails, as the primary path.

Alternatively, the remote device may determine the primary transmission path of the SRB as the primary path.

Alternatively, the far-end device may determine a path for maintaining the RRC connection as the primary path.

Alternatively, the anchor path may be determined as the primary path.

Alternatively, a path connecting the primary cell PCell of the remote device may be determined as the primary path.

That is, the main path determined by the remote device may be any of the following paths:

a path for transmitting a radio signaling bearer (SRB);

a path for triggering radio control resource, RRC, connection reestablishment by the remote device upon a path failure;

a main transmission path of the SRB;

a path for maintaining RRC connection;

an anchor point path;

a path connecting a primary cell, PCell, of the remote device.

It is to be understood that, if the remote device determines that any of the paths is not the primary path, the remote device may determine that any of the paths is the secondary path, that is, the secondary path may also be one of the paths.

And S302, the relay equipment determines whether to send the system information to the remote equipment or not according to the state parameters in the indication information.

In some implementations, the indication information is used to indicate a status parameter of the remote device and indicate the relay device to determine whether to send the system information to the remote device according to the status parameter of the remote device. Therefore, after the relay equipment receives the indication information, the relay equipment can determine the state parameters of the remote equipment and determine whether the remote equipment meets the set condition of not sending the system information or not; if the set condition is met, the relay equipment does not send system information to the remote equipment; if the set condition is not met, the relay device may send system information to the remote device.

In some implementations, the indication information is used to indicate a status parameter of the remote device, and instruct the relay device to determine whether to send the system information to the remote device according to the status parameter of the remote device. Therefore, after the relay equipment receives the indication information, the relay equipment can determine the state parameters of the remote equipment and determine whether the remote equipment meets the set condition of not sending the system information or not; if the set condition is met, the relay equipment does not send system information to the remote equipment; if the set condition is not satisfied, the relay device may send system information to the remote device.

Alternatively, the setting condition may include one of the following conditions:

the remote device is configured with multipath transmission;

the remote device is configured with a multipath bearer;

the remote equipment is configured with multi-path transmission and the indirect link is an auxiliary path; and

In the embodiment of the application, the remote device sends indication information to the relay device, the indication information is used for indicating the state parameter of the remote device, and the indication relay device determines whether to send the system information to the remote device according to the state parameter of the remote device. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

Referring to fig. 4, fig. 4 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application. The method for controlling the relay device information transmission is executed by the network device, and may include, but is not limited to, the following steps:

s401, the network device sends indication information to the relay device, wherein the indication information is used for indicating the state parameter of the remote device and indicating the relay device to determine whether to send system information to the remote device according to the state parameter of the remote device.

The process of the network device sending the indication information to the relay device is similar to the process of the remote device sending the indication information to the relay device, and reference may be made to the description of the relevant content in the foregoing embodiment, for example, the description of step 201 or step 301, which is not described herein again.

S402, the relay equipment determines whether to send the system information to the remote equipment according to the state parameters in the indication information.

The relay device may receive the indication information, and determine whether the remote device satisfies a setting condition for not sending the system information according to the indication information, and the relay device may not send the system information to the remote device when the setting condition is satisfied. The relay device may transmit the system information to the remote device in the case where the setting condition is not satisfied. For the setting condition, reference may be made to the description of the related content in the above embodiments, for example, the embodiments shown in fig. 2 or fig. 3, which is not described herein again.

In the embodiment of the application, the network device sends the indication information to the relay device, and the indication information is used for the relay device to determine whether to send the system information to the remote device. The relay device can be controlled to send the system information to the remote device through the indication information, so that signaling overhead caused by sending the system information without sending the system information can be avoided.

Referring to fig. 5, fig. 5 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application. The method for controlling the relay device information transmission is performed by the relay device, and may include, but is not limited to, the following steps:

s501, receiving indication information, wherein the indication information is used for indicating the state parameters of the remote device.

In the embodiment of the present application, the relay device may be a relay device in a U2N relay scenario, and may also be a relay device in a device-to-device U2U relay scenario. The remote device may remain connected to the network through both direct and indirect links, a function known as multipath transmission or multipath connection.

In some implementations, the indication information is used to indicate a status parameter of the remote device, and indicate information that the relay device determines whether to send the system information to the remote device according to the status parameter of the remote device. Therefore, after the relay equipment receives the indication information, the relay equipment can determine the state parameters of the remote equipment and determine whether the remote equipment meets the set condition of not sending the system information or not; if the set condition is met, the relay equipment does not send system information to the remote equipment; if the set condition is not met, the relay device may send system information to the remote device.

In order to avoid the problem that the relay device still sends the system information to the remote device in a scene without sending the system information, so that signaling consumption is increased, in the embodiment of the present application, the relay device may receive the indication information sent by the communication device. The communication device may be a remote device or a network device.

In this embodiment, the indication information may include at least one of the following status parameters: the method comprises the following steps of multi-path indication information, multi-path bearing indication information, path type indication information of an indirect link of the remote equipment, identification of a first service cell of the remote equipment when a main path of the remote equipment is a direct link, and release request indication of system information. Wherein the release request indication of the system information may be sent by the communication device when the type of the indirect link of the remote device is the secondary path.

Alternatively, the multipath indication information may indicate to the relay device whether the remote device is configured for multipath transmission. In some implementations, the relay device may receive multipath indication information sent by the remote device upon determining that the remote device configures multipath transmission.

Optionally, the multipath bearer indication information may indicate to the relay device whether the remote device configures the multipath bearer. In some implementations, the relay device may receive multipath bearer indication information sent by the communication device if the communication device configures a multipath bearer itself.

Alternatively, the path type indication information of the indirect link may indicate to the relay device whether the indirect link is the primary path. In some implementations, the remote device may determine a path type of its own indirect link, and the relay device may receive path type indication information of the indirect link of the remote device sent by the communication device. In some implementations, the path type indication is indication information sent to the relay device after determining whether the indirect link is the main path, where the far-end device is often configured with multipath transmission, and accordingly, the intermediate device may determine whether the far-end device is configured with multipath transmission and the indirect link is the main path after receiving the path type indication information. Optionally, when the remote device determines that its main path is a direct link, the remote device may send the identifier of the first serving cell of the remote device to the relay device, and accordingly the relay device may receive the identifier of the first serving cell sent by the remote device when the main path is a direct path. That is, the identifier of the first serving cell of the remote device is sent to the relay device as a kind of indication information. In some implementations, the identifier of the first serving cell is indication information that is sent to the relay device only when the first serving cell where the remote device is located is determined to be different from the second serving cell where the relay device is located when the remote device is configured with multipath transmission and the main path is the direct link. Accordingly, after receiving the identifier of the first serving cell, the intermediate device may determine that the remote device is configured with multipath transmission and the direct link is a primary path, and that the first serving cell is different from the second serving cell.

Optionally, the main path determined by the remote device may be any one of the following paths:

a path for transmitting a radio signaling bearer (SRB);

a main transmission path of the SRB;

a path for maintaining RRC connection;

an anchor point path;

a path connecting a primary cell, PCell, of the remote device.

It is to be understood that, if the remote device determines that any of the paths is not the main path, the remote device may determine that any of the paths is the auxiliary path, that is, the auxiliary path may also be one of the paths.

S502, according to the state parameter of the remote device, whether to send the system information to the remote device is determined.

In some implementations, the relay device may determine whether the remote device satisfies a setting condition for not sending the system information according to the indication information, and the relay device may not send the system information to the remote device when the setting condition is satisfied. The relay device may transmit the system information to the remote device in the case where the setting condition is not satisfied.

the remote device is configured with multipath transmission;

the remote equipment is configured with a multipath bearer;

the remote equipment is configured with multi-path transmission and an indirect link is an auxiliary path;

It should be noted that the first serving cell and the second serving cell may be Primary cells (Pcell).

Optionally, the relay device receives the multipath indication information, and may determine that a set condition that the remote device is configured with multipath transmission is satisfied, and the relay device may not send the system information to the remote device; if the set condition that the remote device is configured with multipath transmission is not met, the relay device can send system information to the remote device.

Optionally, the relay device receives the multipath bearer indication information, and may determine that a set condition that the remote device is configured with the multipath bearer is satisfied, and the relay device may not send the system information to the remote device; if the set condition that the remote device is configured with the multipath bearer is not met, the relay device may send the system information to the remote device.

Optionally, the relay device receives the path type indication information, and may determine that a set condition that the remote device is configured with multi-path transmission and the indirect link is a secondary path is satisfied.

Optionally, the relay device may determine, after receiving the release request information of the system information, that a set condition that the remote device is configured with multi-path transmission and the indirect link is a secondary path is satisfied.

Optionally, the relay device receives the identifier of the first serving cell of the remote device, and may determine that the set condition that the remote device is configured with multipath transmission, the indirect path is a secondary path, and the first serving cell is different from the second serving cell is satisfied.

It should be noted that the relay device may determine whether the remote device satisfies one of the setting conditions according to one or more status parameters of the remote device included in the indication information. After one of the set conditions is satisfied, the relay device does not transmit system information to the remote device.

In the embodiment of the application, indication information sent by communication equipment is received, wherein the indication information is used for indicating the state parameters of the remote equipment, and whether to send system information to the remote equipment is determined according to the state parameters of the remote equipment. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

Referring to fig. 6, fig. 6 is a schematic flowchart of a method for controlling information transmission of a relay device according to an embodiment of the present disclosure. The method for controlling the relay device information transmission is performed by the relay device, and may include, but is not limited to, the following steps:

s601, receiving indication information sent by the communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment.

Optionally, the status parameter of the remote device included in the indication information may be multipath indication information, and the multipath indication information may indicate whether the remote device configures multipath transmission.

When determining that the remote device configures the multipath transmission, the remote device sends the multipath indication information to the relay device.

S602, judging whether the remote equipment is configured with multi-path transmission according to the state parameter of the remote equipment.

For example, a value of "1" in the indication information may indicate that the remote device configures the multipath transmission, and a value of "0" in the indication information may indicate that the remote device does not configure the multipath transmission.

If the remote device is determined to be configured with multi-path transmission, executing step S603; if the remote device is not configured with the multipath transmission, step S604 is executed.

S603, the system information is not sent to the remote device.

The relay device determines that the remote device is configured with multipath transmission, and may determine that the remote device can directly obtain system information from a network device such as a base station, and the relay device does not need to send the system information to the remote device. Wherein, the system information may be SIB1.

And S604, sending the system information to the remote equipment.

The relay device determines that the remote device is not configured with multipath transmission, and may determine that the remote device cannot directly obtain system information from a network device such as a base station, and the relay device needs to send and send the system information to the remote device.

In the embodiment of the application, the indication information sent by the communication equipment is received, and whether the system information is sent to the far-end equipment is determined according to the indication information. The relay device can be controlled to send the system information to the remote device through the indication information, so that signaling overhead caused by sending the system information without sending the system information can be avoided.

Referring to fig. 7, fig. 7 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application. The method for controlling the relay device information transmission is performed by the relay device, and may include, but is not limited to, the following steps:

s701, receiving indication information sent by the communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment.

S702, according to the state parameters of the remote equipment, determining that the remote equipment is configured with multi-path transmission and the auxiliary path is an indirect link, and not sending system information to the remote equipment.

And S703, determining that the remote equipment is configured with multi-path transmission and any one of the auxiliary paths is not satisfied by the indirect link according to the state parameters of the remote equipment, and sending system information to the remote equipment.

Optionally, the indication information may include a state parameter of the remote device as path type indication information of the indirect link. In some implementations, the path type indication is indication information sent to the relay device after the remote device is configured with multi-path transmission and determines whether the indirect link is the primary path.

The relay device receives the path type indication information of the indirect link, and when the path type indication information indicates that the indirect link is not the main path, the relay device may determine that the indirect link is the auxiliary path, may determine that the remote device configures multi-path transmission, and the auxiliary path is the indirect link, and the relay device may not send the system information to the remote device. When the path type indication information indicates that the indirect link is the primary path, it may be determined that the remote device configures the multi-path transmission but does not satisfy the secondary path and is the indirect link, and the relay device may send system information to the remote device.

Optionally, a value of the path type indication information being "1" may indicate that the indirect link is the main path, and a value of the path type indication information being "0" may indicate that the indirect link is not the main path, that is, the auxiliary path.

As another possible implementation manner, the indication information may include a state parameter of the remote device, which is multipath indication information and/or multipath bearer indication information, and path type indication information of the indirect link.

The multipath bearer indication information may indicate whether the remote device configures a multipath bearer, i.e., may indicate whether the remote device may support multipath transmission. It should be noted that, when determining that the remote device configures a multipath bearer, the remote device sends multipath bearer indication information to the relay device.

Optionally, the multipath indication information may indicate whether the remote device is configured for multipath transmission. In this embodiment, the relay device may determine whether the remote device configures the multipath transmission based on the multipath indication information and/or the multipath bearer indication information.

After determining that the remote device configures the multi-path transmission, the relay device may further determine, according to the path type indication information of the indirect link, whether the secondary path of the remote device is the indirect link.

Optionally, the indication information may include path type indication information of the indirect link, and the path type indication information may indicate whether the indirect link is a primary path.

In the embodiment of the application, when it is determined that the remote device is configured with multi-path transmission and the secondary path is an indirect link, the remote device may directly acquire the system information from the base station, and the relay device does not need to continue to send the system information to the remote device.

In the embodiment of the present application, when it is determined that the remote device does not satisfy any one of the configuration of the multipath transmission and the configuration of the auxiliary path as the indirect link, the remote device cannot directly acquire the system information from the base station, and the relay device needs to continue to send the system information to the remote device.

In the embodiment of the application, indication information sent by communication equipment is received, wherein the indication information is used for indicating the state parameters of the remote equipment, and whether to send system information to the remote equipment is determined according to the state parameters of the remote equipment. The relay equipment can be indicated not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

Referring to fig. 8, fig. 8 is a schematic flowchart of a method for controlling information transmission of a relay device according to an embodiment of the present disclosure. The method for controlling the relay device information transmission is performed by the relay device, and may include, but is not limited to, the following steps:

and S801, receiving indication information sent by the communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment.

S802, according to the state parameters of the remote equipment, determining that the remote equipment is configured with multi-path transmission, the auxiliary path is an indirect link, and a first service cell of the remote equipment is different from a second service cell of the relay equipment, and not sending system information to the remote equipment.

And S803, determining that the remote equipment is configured with multipath transmission and an auxiliary path as an indirect link or that the first serving cell and the second serving cell are different and sending system information to the remote equipment according to the state parameters of the remote equipment.

As a possible implementation manner, the status parameter of the remote device that may be included in the indication information is an identifier of a first serving cell in which the remote device is located. In some implementations, the identifier of the first serving cell is indication information that is sent to the relay device only when the first serving cell where the remote device is located is determined to be different from the second serving cell where the relay device is located when the remote device is configured with multipath transmission and the main path is the direct link. Optionally, the first serving cell of the remote device and the second serving cell of the relay device may be the same or different.

In this embodiment of the application, after receiving the identifier of the first serving cell, the intermediate device may determine that the remote device is configured with multipath transmission and the direct link is a main path, and that the first serving cell is different from the second serving cell.

As another possible implementation manner, the indication information may include at least one of the following status parameters: the indication information includes a multipath indication information, a multipath bearer indication information, a path type indication information of an indirect link of the remote device, and an identification of a first serving cell of the remote device at the remote device. It should be noted that, when the main path is the direct link, the remote device sends the identifier of the first serving cell to the relay device.

In the embodiment of the application, whether the remote device is configured with multi-path transmission or not is judged according to the state parameter of the remote device, whether the secondary path of the remote device is an indirect link or not is judged, and whether the first serving cell and the second serving cell are different or not is judged.

For a specific determination process that whether the remote device configures the multipath transmission may be determined according to the multipath indication information and/or the multipath bearer indication information, refer to the description of the related content in S602 in the foregoing embodiment, which is not described herein again.

Whether the indirect link of the remote device is the primary path or not may be determined based on the path type indication information, and for a specific determination process, reference may be made to the description of relevant contents in S702 in the foregoing embodiment, which is not described herein again.

Further, the relay device obtains an identifier of a second serving cell accessed by the relay device. The relay device may mark the identifier of the first serving cell and the identifier of the second serving cell, and if the two identifiers are different, it may be determined that the first serving cell is different from the second serving cell.

In the embodiment of the application, under the condition that the remote equipment is determined to be configured with multi-path transmission, the auxiliary path is an indirect link, and the first serving cell is different from the second serving cell of the relay equipment, the relay equipment does not need to continuously send the system information to the remote equipment.

In this embodiment of the present application, when it is determined that the remote device does not satisfy any of the configuration of multipath transmission, the secondary path being an indirect link, and the difference between the first serving cell and the second serving cell, the relay device needs to continue sending system information to the remote device.

Referring to fig. 9, fig. 9 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application. The method for controlling the relay device information transmission is performed by the relay device, and may include, but is not limited to, the following steps:

s901, receiving the indication information sent by the communication equipment.

And S902, judging whether the indication information is a release request indication of the system information.

If the determination indication information is the release request indication of the system information, S902 is executed, and if the determination indication information is not the release request indication of the system information, it may continue to determine whether the remote device is configured with the multi-path transmission, determine whether the secondary path of the remote device is an indirect link, and determine whether the first serving cell is different from the second serving cell.

Wherein the release request indication of the system information may request the relay device to release the system information. It should be noted that the remote device sends the information to the relay device when determining that the type of the indirect link is the secondary path.

And S903, not sending the system information to the far-end equipment.

Upon receiving the release request indication of the remote system information, it may be determined that the intermediate device does not need to send the system information to the remote device.

Referring to fig. 10, fig. 10 is a flowchart illustrating a method for controlling information transmission of a relay device according to an embodiment of the present application. The method for controlling the information transmission of the relay device is executed by the relay device, and the method can include but is not limited to the following steps:

and S1001, receiving indication information sent by the communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment.

For a detailed description of step S1001, reference may be made to the description of relevant contents in the foregoing embodiments, and details are not repeated herein.

S1002, detects an update condition of the system information.

And S1003, when the system information is detected to be updated, determining whether to transmit the system information to the remote equipment or not according to the indication information.

In this embodiment of the present application, the relay device may detect an update situation of the system information, for example, the relay device may determine that the system information is updated when receiving new system information again.

Further, the relay device may determine whether to send the system information to the remote device according to the indication information, and the specific process may refer to the description of the relevant content in the foregoing embodiment, which is not described herein again.

In the embodiment of the application, indication information sent by communication equipment is received, wherein the indication information is used for indicating the state parameters of the far-end equipment, and whether system information is sent to the far-end equipment or not is determined according to the state parameters of the far-end equipment. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

In the embodiments provided in the present application, the methods provided in the embodiments of the present application are introduced from the perspective of a network device and a terminal device, respectively. In order to implement the functions in the method provided by the embodiment of the present application, the network device and the first terminal device may include a hardware structure and a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure and a software module. Some of the above functions may be implemented by a hardware structure, a software module, or a hardware structure plus a software module.

Fig. 11 is a schematic structural diagram of a communication device 1100 according to an embodiment of the present disclosure. The communication device 1100 shown in fig. 11 may include a transceiver module 1101 and a processing module 1102. The transceiver module 1101 may include a transmitting module and/or a receiving module, where the transmitting module is configured to implement a transmitting function, the receiving module is configured to implement a receiving function, and the transceiver module 1101 may implement a transmitting function and/or a receiving function.

The communication apparatus 1100 may be a terminal device, an apparatus in a terminal device, or an apparatus that can be used in cooperation with a terminal device. Alternatively, the communication apparatus 1100 may be a network device, an apparatus in a network device, or an apparatus that can be used in cooperation with a network device.

The communication apparatus 1100 may be a remote device as in the above embodiments, or may be a network device as in the above embodiments.

The transceiver module 1101 is configured to send indication information to the relay device, where the indication information is used to indicate a state parameter of the remote device, and indicate the relay device to determine whether to send system information to the remote device according to the state parameter of the remote device.

In some implementations, the transceiver module 1101 is further configured to:

under the condition that the remote equipment is determined to be configured with multipath transmission, multipath indication information is sent to the relay equipment;

under the condition that the remote equipment is determined to be configured with the multipath bearer, transmitting multipath bearer indication information to the relay equipment;

determining a path type of an indirect link of the remote device, and sending path type indication information of the indirect link to the relay device, where the path type indication information is used to indicate whether the indirect link is the primary path;

when determining that the main path of the remote equipment is a direct link, sending an identifier of a first serving cell of the remote equipment to the relay equipment;

and when the type of the indirect link of the remote equipment is determined to be the auxiliary path, sending a release request indication of the system information to the relay equipment.

In some implementations, the processing module 1102 is configured to:

judging whether the first serving cell is the same as a second serving cell of the relay device or not under the condition that a main path of the remote device is a direct link;

the transceiver module 1101 is further configured to send, to the relay device, an identifier of the first serving cell when the first serving cell is different from the second serving cell.

In some implementations, the primary path is any one of:

the main path is used for transmitting a radio signaling bearer (SRB);

the main path is a path which triggers radio control resource (RRC) connection reestablishment when the path fails by the remote equipment;

the main path is a main transmission path of the SRB;

the main path is a path for maintaining RRC connection;

the main path is an anchor point path;

the main path connects a primary cell PCell of the remote device.

In some implementations, if any of the paths is not a primary path, then it is determined to be the secondary path.

In some implementations, the communication apparatus 1100 may be a remote device or a network device.

The communication apparatus 1100 may be a relay device as in the above embodiments:

the transceiver module 1101 is configured to receive indication information sent by the communication device, where the indication information is used to indicate a state parameter of the remote device;

the processing module 1102 is configured to determine whether to send system information to the remote device according to the state parameter of the remote device.

In some implementations, the processing module 1102 is further configured to: determining that the remote equipment configures multi-path transmission according to the state parameters of the remote equipment, and not sending the system information to the remote equipment; or determining that the configuration of the remote equipment by the remote equipment is not met by multipath transmission according to the state parameter of the remote equipment, and sending the system information to the remote equipment.

In some implementations, the processing module 1102 is further configured to: determining that the remote equipment is configured with multi-path transmission and an auxiliary path of the remote equipment is an indirect link according to the state parameter of the remote equipment, and not sending the system information to the remote equipment; or determining that any one of the multi-path transmission configured by the remote equipment and the indirect link of the secondary path is not satisfied according to the state parameter of the remote equipment, and sending the system information to the remote equipment.

In some implementations, the processing module 1102 is further configured to: determining that the remote equipment is configured with multi-path transmission according to the state parameter of the remote equipment, wherein a secondary path of the remote equipment is an indirect link, a first serving cell of the remote equipment is different from a second serving cell of the remote equipment, and the system information is not sent to the remote equipment; or determining that the remote device configures multi-path connection according to the state parameter of the remote device, the auxiliary path is an indirect link, and any one of the first serving cell and the second serving cell is not satisfied, and sending the system information to the remote device.

In some implementations, the processing module 1102 is further configured to: and determining not to send the system information to the remote equipment in response to the indication information being a release request indication of the system information.

In some implementations, the transceiver module 1101 is further configured to:

receiving multipath indication information sent by the communication equipment under the condition that the remote equipment configures multipath transmission;

receiving multipath bearer indication information sent by the communication equipment under the condition that the remote equipment configures multipath bearers;

receiving path type indication information of an indirect link of the remote device, which is sent by the communication device, wherein the path type indication information is used for indicating whether the indirect link is a secondary main path of the remote device;

receiving an identifier of a first serving cell of the remote device sent by the communication device when a main path of the remote device is a direct path.

In some implementations, the identifier of the first serving cell is sent by the communications device to the relay device upon determining that the first serving cell is different from a second serving cell of the relay device.

In some implementations, the processing module 1102 is further configured to: judging whether the remote equipment is configured with multi-path transmission or not according to the multi-path indication; or, according to the multipath bearer indication, determining whether the remote device is configured with multipath transmission.

In some implementations, the processing module 1102 is further configured to: and judging whether the auxiliary path is an indirect path or not according to the path type indication information.

In some implementations, the processing module 1102 is further configured to: judging whether the first serving cell is the same as the second serving cell or not according to the identifier of the first serving cell; or, in response to that the indirect path is a primary path and the first serving cell identifier is not received, determining that the first serving cell and the second serving cell are the same.

In some implementations, the processing module 1102 is further configured to: detecting the updating condition of the system information;

and when the system information is detected to be updated, determining whether to send the system information to the remote equipment or not according to the indication information.

In the embodiment of the application, the communication device sends the indication information to the relay device, the indication information is used for indicating the state parameter of the remote device, and the relay device determines whether to send the system information to the remote device according to the state parameter of the remote device. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

Referring to fig. 12, fig. 12 is a schematic structural diagram of another communication device 1200 according to an embodiment of the present disclosure. The communication apparatus 1200 may be a network device, a terminal device, a chip system, a processor, or the like supporting the network device to implement the method described above, or a chip, a chip system, a processor, or the like supporting the terminal device to implement the method described above. The apparatus may be configured to implement the method described in the method embodiment, and refer to the description in the method embodiment.

The communication device 1200 may include one or more processors 1201. The processor 1201 may be a general purpose processor, a special purpose processor, or the like. For example, a baseband processor or a central processor. The baseband processor may be configured to process communication protocols and communication data, and the central processor may be configured to control a communication device (e.g., a base station, a baseband chip, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

Optionally, the communication apparatus 1200 may further include one or more memories 1202, on which a computer program 1203 may be stored, and the processor 1201 executes the computer program 1203, so as to enable the communication apparatus 1200 to execute the method described in the above method embodiment. Optionally, the memory 1202 may also store data therein. The communication device 1200 and the memory 1202 may be separate or integrated.

Optionally, the communications apparatus 1200 can also include a transceiver 1204, an antenna 1205. The transceiver 1204 may be referred to as a transceiving unit, a transceiver, or a transceiving circuit, etc., for implementing transceiving functions. The transceiver 1204 may include a receiver and a transmitter, and the receiver may be referred to as a receiver or a receiving circuit, etc. for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmission circuit, etc. for implementing the transmission function.

Optionally, one or more interface circuits 1206 may also be included in the communications device 1200. The interface circuit 1206 is used for receiving code instructions and transmitting the code instructions to the processor 1201. The processor 1201 executes the code instructions to cause the communication apparatus 1200 to perform the method described in the above method embodiments.

The communication apparatus 1200 is a terminal device for implementing the functions of the terminal device in the foregoing embodiments.

The communication apparatus 1200 is a network device for implementing the functions of the network device in the foregoing embodiments.

In one implementation, a transceiver may be included in the processor 1201 for performing receive and transmit functions. The transceiver may be, for example, a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or integrated. The transceiver circuit, the interface circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit, the interface circuit or the interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 1201 may have a computer program 1203 stored thereon, and the computer program 1203 running on the processor 1201 may cause the communication apparatus 1200 to perform the method described in the above method embodiment. The computer program 1203 may be solidified in the processor 1201, in which case the processor 1201 may be implemented by hardware.

In one implementation, the communications apparatus 1200 may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described herein may be implemented on Integrated Circuits (ICs), analog ICs, radio Frequency Integrated Circuits (RFICs), mixed signal ICs, application Specific Integrated Circuits (ASICs), printed Circuit Boards (PCBs), electronic devices, and the like. The processor and transceiver may also be fabricated using various IC process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar Junction Transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), and the like.

The communication apparatus in the above description of the embodiment may be a network device or, but the scope of the communication apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 12. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication means may be:

(1) A stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem;

(2) A set of one or more ICs, which optionally may also include storage means for storing data, computer programs;

(3) An ASIC, such as a Modem (Modem);

(4) A module that may be embedded within other devices;

(5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, and the like;

(6) Others, etc.

For the case that the communication device may be a chip or a system of chips, see the schematic structural diagram of the chip shown in fig. 13. The chip 1300 shown in fig. 13 includes a processor 1301 and an interface 1302. The number of the processors 1301 may be one or more, and the number of the interfaces 1302 may be more.

For the case that the chip 1300 is used to implement the functions of the communication device in the embodiment of the present application, such as the remote device and the network device in the above embodiments:

an interface 1302, configured to send indication information to a relay device, where the indication information is used to indicate a status parameter of a remote device, and indicate the relay device to determine whether to send system information to the remote device according to the status parameter of the remote device.

In some implementations, the interface 1302 is further configured to:

under the condition that the remote equipment is determined to be configured with the multipath bearing, transmitting multipath bearing indication information to the relay equipment;

determining a path type of an indirect link of the remote device, and sending path type indication information of the indirect link to the relay device, where the path type indication information is used to indicate whether the indirect link is the main path;

In some implementations, the processor 1301 is configured to:

an interface 1302, configured to send an identifier of the first serving cell to the relay device when the first serving cell is different from the second serving cell.

In some implementations, the primary path is any one of:

the main path is used for transmitting a radio signaling bearer (SRB);

the main path is a main transmission path of the SRB;

the main path is a path for maintaining RRC connection;

the main path is an anchor point path;

the main path connects a primary cell PCell of the remote device.

In some implementations, the chip 1300 may be adapted for use in a remote device as well as a network device.

For the case where the chip 1300 is used to implement the function of the relay device in the embodiment of the present application:

an interface 1302, configured to receive indication information sent by a communication device, where the indication information is used to indicate a status parameter of a remote device;

a processor 1301, configured to determine whether to send system information to the remote device according to the state parameter of the remote device.

In some implementations, the processor 1301 is further configured to: determining that the remote equipment is configured with multi-path transmission according to the state parameters of the remote equipment, and not sending the system information to the remote equipment; or determining that the configuration of the remote equipment by the remote equipment is not met by multipath transmission according to the state parameter of the remote equipment, and sending the system information to the remote equipment.

In some implementations, the processor 1301 is further configured to: judging whether the remote equipment is configured with multi-path transmission or not and judging whether a secondary path of the remote equipment is an indirect link or not according to the indication information; responding to the remote equipment to configure multi-path transmission and the auxiliary path is an indirect link, and not sending the system information to the remote equipment; or, in response to that any one of the configuration of the multi-path transmission and the configuration of the secondary path as an indirect link by the remote device is not satisfied, sending the system information to the remote device.

In some implementations, the processor 1301 is further configured to: determining that the remote equipment is configured with multi-path transmission according to the state parameter of the remote equipment, a secondary path of the remote equipment is an indirect link, a first serving cell of the remote equipment is different from a second serving cell of the relay equipment, and the system information is not sent to the remote equipment; or determining that the remote device configures multi-path connection according to the state parameter of the remote device, the auxiliary path is an indirect link, and any one of the first serving cell and the second serving cell is not satisfied, and sending the system information to the remote device.

In some implementations, the interface 1302 is further configured to:

In some implementations, the identifier of the first serving cell is sent by the communication device to the relay device upon determining that the first serving cell is different from a second serving cell of the relay device.

In some implementations, the processor 1301 is further configured to: judging whether the remote equipment is configured with multipath transmission or not according to the multipath indication; or, according to the multipath bearer indication, determining whether the remote device is configured with multipath transmission.

In some implementations, the processor 1301 is further configured to: and judging whether the auxiliary path is an indirect path or not according to the path type indication information.

In some implementations, the processor 1301 is further configured to: judging whether the first serving cell is the same as the second serving cell or not according to the identifier of the first serving cell; or, in response to that the indirect path is a primary path and the first serving cell identifier is not received, determining that the first serving cell and the second serving cell are the same.

In some implementations, the processor 1301 is further configured to: and determining not to send the system information to the remote equipment in response to the indication information being the release request indication of the system information.

In some implementations, the processor 1301 is further configured to: detecting the updating condition of the system information;

The chip 1300 further comprises a memory 1303, the memory 1303 being adapted to store necessary computer programs and data.

In the embodiment of the application, the communication device sends the indication information to the relay device, and the relay device determines whether to send the system information to the remote device according to the state parameter of the remote device. The relay equipment can be instructed not to send the system information to the remote equipment through the indication information, so that the signaling overhead caused by unnecessary sending of the system information can be avoided.

Those skilled in the art will also appreciate that the various Illustrative Logical blocks and steps (Step) set forth in the embodiments of the present application may be implemented in electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

An embodiment of the present application further provides a communication system, where the system includes the communication apparatus serving as the terminal device in the foregoing fig. 11 embodiment and the communication apparatus serving as the network device, or the system includes the communication apparatus serving as the terminal device and the communication apparatus serving as the network device in the foregoing fig. 12 embodiment.

The present application also provides a readable storage medium having stored thereon instructions which, when executed by a computer, implement the functionality of any of the above-described method embodiments.

The present application also provides a computer program product which, when executed by a computer, implements the functionality of any of the method embodiments described above.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer program is loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer program can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., digital Video Disk (DVD)), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

Those of ordinary skill in the art will understand that: the various numbers of the first, second, etc. mentioned in this application are only used for the convenience of description and are not used to limit the scope of the embodiments of this application, but also to indicate the sequence.

At least one of the present application may also be described as one or more, and a plurality may be two, three, four or more, and the present application is not limited thereto. In the embodiment of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the like, and the technical features described in "first", "second", "third", "a", "B", "C", and "D" are not in a sequential order or a size order.

The correspondence shown in the tables in the present application may be configured or predefined. The values of the information in each table are only examples, and may be configured to other values, which is not limited in the present application. When the correspondence between the information and each parameter is configured, it is not necessarily required that all the correspondence indicated in each table be configured. For example, in the table in the present application, the correspondence shown in some rows may not be configured. For another example, appropriate modification adjustments, such as splitting, merging, etc., can be made based on the above tables. The names of the parameters in the tables may be other names understandable by the communication device, and the values or the expression of the parameters may be other values or expressions understandable by the communication device. When the above tables are implemented, other data structures may be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or the like may be used.

Predefinition in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing. Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of controlling relay device information transmission, performed by a communication device, the method comprising:

2. The method of claim 1, wherein the indication information comprises at least one of the following status parameters:

when the main path of the remote equipment is determined to be a direct link, sending the identification of a first service cell of the remote equipment to the relay equipment;

3. The method of claim 2, further comprising:

and when the first serving cell is different from the second serving cell, sending the identification of the first serving cell to the relay equipment.

4. The method according to claim 2, wherein the main path is any one of:

the main path is used for transmitting a radio signaling bearer (SRB);

the main path is a main transmission path of the SRB;

the main path is a path for maintaining RRC connection;

the main path is an anchor point path;

the main path connects a primary cell PCell of the remote device.

5. The method of claim 4, wherein if any of the paths is not a primary path, then it is determined to be the secondary path.

6. The method of any of claims 1-5, wherein the communication device is the remote device or a network device.

7. A method of controlling relay device information transmission, performed by a relay device, the method comprising:

and determining whether to send system information to the remote equipment or not according to the state parameters of the remote equipment.

8. The method of claim 7, wherein the determining whether to send system information to the remote device according to the status parameter of the remote device comprises:

determining that the remote equipment configures multi-path transmission according to the state parameters of the remote equipment, and not sending the system information to the remote equipment; or,

and according to the state parameters of the remote equipment, determining that the configuration of the remote equipment with multipath transmission is not satisfied, and sending the system information to the remote equipment.

9. The method of claim 7, wherein the determining whether to send system information to the remote device according to the status parameter of the remote device comprises:

according to the state parameters of the remote equipment, determining that the remote equipment is configured with multi-path transmission and an auxiliary path of the remote equipment is an indirect link, and not sending the system information to the remote equipment; or,

and according to the indication information, determining that any one of the multi-path transmission configured by the remote equipment and the auxiliary path which is an indirect link is not satisfied, and sending the system information to the remote equipment.

10. The method of claim 7, wherein the determining whether to send system information to the remote device according to the status parameter of the remote device comprises:

determining that the remote equipment is configured with multi-path transmission according to the state parameter of the remote equipment, wherein a secondary path of the remote equipment is an indirect link, a first serving cell of the remote equipment is different from a second serving cell of the relay equipment, and the system information is not sent to the remote equipment; or,

and determining that the remote equipment is configured with multi-path connection according to the state parameters of the remote equipment, wherein the auxiliary path is an indirect link, and any one of the first serving cell and the second serving cell which are different is not satisfied, and sending the system information to the remote equipment.

11. The method of claim 7, wherein the determining whether to send system information to the remote device according to the indication information comprises:

and determining not to send the system information to the remote equipment in response to the indication information being the release request indication of the system information.

12. The method according to any of claims 6-11, wherein the indication information comprises at least one of the following status parameters:

receiving path type indication information of an indirect link of the remote device, which is sent by the communication device, wherein the path type indication information is used for indicating whether the indirect link is a main path of the remote device;

receiving an identifier of a first serving cell of the remote device, which is sent by the communication device when a main path of the remote device is a direct path;

and receiving a system information release request indication sent by the remote equipment when the type of the indirect link is the auxiliary path.

13. The method of claim 12, wherein the identity of the first serving cell is sent by the communication device to the relay device upon determining that the first serving cell is different from a second serving cell of the relay device.

14. The method according to claims 6-10, wherein the determining whether the remote device is configured with multipath transmission comprises:

judging whether the remote equipment is configured with multi-path transmission or not according to the multi-path indication; or,

and judging whether the remote equipment is configured with multi-path transmission or not according to the multi-path bearing indication.

15. The method according to claim 9 or 10, wherein the determining whether the secondary path of the remote device is an indirect link includes:

and judging whether the auxiliary path is an indirect path or not according to the path type indication information.

16. The method of claim 10, wherein the determining whether the first serving cell is the same as the second serving cell comprises:

judging whether the first serving cell is the same as the second serving cell or not according to the identifier of the first serving cell; or,

and in response to the indirect path being a primary path and the first serving cell identifier not being received, determining that the first serving cell and the second serving cell are the same.

17. The method according to any of claims 6-11, wherein the determining whether to send system information to the remote device according to the indication information comprises:

detecting the updating condition of the system information;

18. A communications apparatus, comprising:

the system comprises a receiving and sending module, a sending and receiving module and a relay device, wherein the receiving and sending module is used for sending indication information to the relay device, the indication information is used for indicating the state parameters of the remote device and indicating the relay device to determine whether to send system information to the remote device according to the state parameters of the remote device.

19. A communications apparatus, comprising:

the receiving and sending module is used for receiving indication information sent by the communication equipment, wherein the indication information is used for indicating the state parameters of the remote equipment;

and the processing module is used for determining whether to send the system information to the remote equipment or not according to the state parameter of the remote equipment.

20. A communications apparatus, comprising a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the method of any of claims 1 to 6.

21. A communication apparatus, characterized in that the apparatus comprises a processor and a memory, in which a computer program is stored, the processor executing the computer program stored in the memory to cause the apparatus to perform the method according to claims 7 to 17.

22. A communications apparatus, comprising: a processor and an interface circuit;

the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor;

the processor to execute the code instructions to perform the method of any one of claims 1 to 6.

23. A communications apparatus, comprising: a processor and an interface circuit;

the processor for executing the code instructions to perform the method of claims 7 to 17.

24. A computer readable storage medium storing instructions that, when executed, cause the method of any one of claims 1 to 6 to be implemented.

25. A computer-readable storage medium storing instructions that, when executed, cause the method of claims 7-17 to be implemented.