CN116801347A

CN116801347A - Data transmission method and related device

Info

Publication number: CN116801347A
Application number: CN202210265847.7A
Authority: CN
Inventors: 邓云
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2023-09-22

Abstract

The application discloses a data transmission method and a related device, wherein the method can comprise the following steps: acquiring a first channel quality of a first interface and a second channel quality of a second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and sending the uplink data to the network equipment through the transmission path. By adopting the application, the transmission path meeting the transmission requirement can be selected under the scene that the remote equipment and the network equipment simultaneously establish two transmission paths, which is beneficial to improving the communication quality between the remote equipment and the network equipment, thereby effectively transmitting data.

Description

Data transmission method and related device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and a related device.

Background

A New Radio (NR) introduces a relay, by which the coverage of the network can be increased, and the relay can be understood as a User Equipment (UE) that performs a relay function, and can communicate with a serving cell through a Uu interface, and also can communicate with a remote UE through a PC5 interface of a direct link. By means of relay, a remote UE (remote UE) can communicate with a serving cell. In the scenario that the remote UE is located at the edge of the serving cell, the remote UE may select to perform data transmission with the serving cell through relay or directly perform data transmission with the serving cell, and how to select a transmission path is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a data transmission method and a related device, which can determine a transmission path with better communication quality under the scene that a remote device and a network device simultaneously establish two transmission paths.

In a first aspect, the present application provides a data transmission method, where the method is applied to a remote device, the remote device has established a first transmission path and a second transmission path with a network device, where the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through a relay device, and an interface between the remote device and the relay device is a second interface; the method may include: acquiring a first channel quality of a first interface and a second channel quality of a second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and sending the uplink data to the network equipment through the transmission path.

It can be seen that the remote device can determine the transmission path according to the first channel quality and the second channel quality, so that the data can be effectively transmitted.

In one possible implementation manner, the determining a transmission path according to the first channel quality and the second channel quality may be determining the second transmission path as the transmission path if the first channel quality is lower than a first threshold and the second channel quality is higher than a second threshold; or if the first channel quality is lower than the first threshold value and the second channel quality is lower than the second threshold value, selecting one transmission path from the first transmission path and the second transmission path, and determining the selected one transmission path as the transmission path; or if the first channel quality is higher than the first threshold value and the second channel quality is higher than the third threshold value, determining the second transmission path as the transmission path; or if the second channel quality is higher than the third threshold, determining the second transmission path as the transmission path; or if the first channel quality is higher than the first threshold value and the second channel quality is lower than the third threshold value, determining the first transmission path as the transmission path; or if the first channel quality is higher than the first threshold, determining the first transmission path as the transmission path; wherein the third threshold is greater than the second threshold.

It can be seen that the first channel quality and the second channel quality are compared according to a certain rule, so that the remote device flexibly selects the transmission path, thereby ensuring the communication quality.

In one possible implementation manner, the determining a transmission path according to the first channel quality and the second channel quality may further include determining the second transmission path as the transmission path if the second channel quality is higher than the first channel quality and a difference between the second channel quality and the first channel quality is greater than a fourth threshold; or if the second channel quality is less than the first channel quality, determining the first transmission path as the transmission path. In case the channel quality parameter of the first channel quality is the same as the channel quality parameter of the second channel quality, the first channel quality may be directly compared with the second channel quality.

In one possible implementation, the remote device may receive first configuration information from the network device, the first configuration information indicating a transmission path in the event that the first channel quality is below a first threshold and the second channel quality is below a second threshold; if the first channel quality is lower than the first threshold value and the second channel quality is lower than the second threshold value, determining a transmission path according to the first configuration information.

In one possible implementation, the remote device may further receive second configuration information from the network device, the second configuration information being used to indicate the first transmission path or the second transmission path; and determining a transmission path according to the second configuration information. To facilitate path selection by the network device to assist the remote device.

In one possible implementation, if the transmission path is a first transmission path, receiving a paging message and/or a system message from the network device through the first interface; or if the transmission path is the second transmission path, receiving the paging message and/or the system message from the network device through the relay device. It can be seen that the network device selects the corresponding transmission path to send paging messages and/or system messages to the remote device so that the remote device can receive these messages.

In one possible implementation, if the first transmission path is unsuccessful in N consecutive transmissions, determining that the transmission path is a second transmission path; or if the second transmission path is unsuccessful in N continuous transmissions, determining the transmission path as the first transmission path; wherein N is a positive integer, and the value of N is configured by the network device or preset by the protocol. As can be seen, if the continuous N transmissions are unsuccessful, the remote device can switch the transmission paths to avoid wasting resources.

In one possible implementation, the N consecutive transmissions are unsuccessful in receiving a non-acknowledgement NACK N consecutive times, and/or no feedback N consecutive times.

In a second aspect, the present application provides a data transmission method, where the method is applied to a network device, a first transmission path and a second transmission path are established between a remote device and the network device, the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through a relay device, and an interface between the remote device and the relay device is a second interface; the method comprises the following steps: receiving uplink data, and determining a transmission path of the uplink data, wherein a source address of the uplink data is an address of remote equipment; if the transmission path is the first transmission path, sending a paging message and/or a system message to the remote equipment through the first interface; or if the transmission path is the second transmission path, sending the paging message and/or the system message to the remote device through the relay device. It can be seen that the network device may send messages to the remote device in the transmission path of the upstream data.

In a third aspect, the present application provides a message transmission method, where the method is applied to a relay device, a first transmission path and a second transmission path are established between a remote device and a network device, the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through the relay device, and an interface between the remote device and the relay device is a second interface; the method comprises the following steps: if uplink data or signaling is received from the second transmission path, sending a paging message and/or a system message to the remote device through the second interface; or if downlink data or signaling for the remote device is received from the network device, sending a paging message and/or a system message to the remote device through the second interface.

In a fourth aspect, the present application provides a communication apparatus for use in a remote device, the apparatus comprising a processing unit and a communication unit. The processing unit is used for acquiring the first channel quality of the first interface and the second channel quality of the second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and the communication unit is used for sending the uplink data to the network equipment through the transmission path.

In a fifth aspect, the present application provides a communication apparatus, where the apparatus is applied to a network device, and the apparatus includes a processing unit and a communication unit. The communication unit is used for receiving uplink data, and the source address of the uplink data is the address of the remote equipment; a processing unit, configured to determine a transmission path of uplink data; the communication unit is further configured to send a paging message and/or a system message to the remote device through the first interface if the transmission path is the first transmission path; or if the transmission path is the second transmission path, sending the paging message and/or the system message to the remote device through the relay device.

In a sixth aspect, the present application provides a communication apparatus, which is applied to a relay device, the apparatus including a communication unit. The communication unit is used for sending a paging message and/or a system message to the remote equipment through the second interface if uplink data or signaling is received from the second transmission path; or if downlink data or signaling for the remote device is received from the network device, sending a paging message and/or a system message to the remote device through the second interface.

In a seventh aspect, the present application provides a communications device comprising a processor, a memory and a transceiver for receiving signals or transmitting signals; the memory is used for storing program codes; the processor is configured to invoke the program code from the memory to perform the method as in the first aspect and any of its possible implementations, or to perform the method of the second aspect described above, or to perform the method of the third aspect described above.

In an eighth aspect, the present application provides a chip. The chip is used for acquiring the first channel quality of the first interface and the second channel quality of the second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and sending the uplink data to the network equipment through the transmission path.

In a ninth aspect, the present application provides a module apparatus, the module apparatus including a communication module, a power module, a storage module, and a chip module, wherein: the power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the module equipment or carrying out communication between the module equipment and external equipment; the chip module is used for: acquiring a first channel quality of a first interface and a second channel quality of a second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and sending the uplink data to the network equipment through the transmission path.

In a tenth aspect, the application provides a computer readable storage medium having stored therein computer readable instructions which, when run on a communication device, cause the communication device to perform the method of the first aspect and any one of its possible implementations, or to perform the method of the second aspect, or to perform the method of the third aspect.

In an eleventh aspect, the application provides a computer program or computer program product comprising code or instructions which, when run on a computer, cause the computer to perform the method as in the first aspect and any of its possible implementations, or to perform the method as in the second aspect, or to perform the method as in the third aspect.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

fig. 2 is a flowchart of a data transmission method according to an embodiment of the present application;

fig. 3 is a flowchart of a signaling transmission method according to an embodiment of the present application;

fig. 4 is a flowchart of another data transmission method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a chip module according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In order to better understand a data transmission method provided by the embodiment of the present application, a description is first given below of a communication system to which the embodiment of the present application is applicable.

Referring to fig. 1, fig. 1 is a schematic diagram of a communication system according to an embodiment of the application. The communication system may include, but is not limited to, a remote device 101, a relay device 102, and a network device 103. The number and form of the devices shown in fig. 1 are only for example and not to limit the embodiments of the present application, and a far-end device, a relay device, and a network device different from the number shown in fig. 1 may be included in practical applications.

Wherein, the remote device 101 and the relay device 102 are both within the coverage area of the network device 103, the remote device 101 may be located at the cell edge, and two transmission paths may be simultaneously established with the network device 103, where one transmission path is that the remote device 101 directly communicates with the network device 103, and the other transmission path is that the remote device 101 communicates with the network device 103 through the relay device 102. The present application refers to an interface for communication between the remote device 101 and the network device 103 as a first interface, for example, uu interface (or referred to as direct interface); the interface for communication between the remote device 101 and the relay device 102 is referred to as a second interface (or referred to as an indirect interface), such as a PC5 interface.

In the present application, when the remote device 101 and the network device 103 establish two transmission paths, the remote device 101 can respectively obtain the channel quality of the Uu interface communicating with the network device 103, that is, the channel quality of the serving cell, and the channel quality of the PC5 interface communicating with the relay device 102, and according to the channel quality of the Uu interface and the channel quality of the PC5 interface, a transmission path with better communication quality can be determined, and then uplink data is sent to the network device 103 through the transmission path.

It should be noted that, in the embodiment of the present application, the remote device and the relay device are both terminal devices, where the terminal device is an entity on the user side for receiving or transmitting signals, and may also be referred to as a terminal, a user device, a mobile station, a remote terminal device, a mobile device, a UE, a wireless communication device, and the terminal device may be fixed or mobile. The terminal device may be, for example, a mobile phone, a wearable device, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self-driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city, a wireless terminal in smart home (smart home), a wearable terminal device, or the like.

The network device in the embodiment of the application is an entity on the network side for transmitting or receiving signals. For example, the network device may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the network equipment.

In addition, the technical scheme of the embodiment of the application can be applied to various communication systems. For example: long term evolution (long term evolution, LTE) system, new radio, NR) system. Optionally, the method according to the embodiment of the present application is also applicable to various future communication systems, for example, sixth generation (6 ^th -generation, 6G) mobile communication system or other communication network, etc.

It may be understood that, the communication system described in the embodiment of the present application is for more clearly describing the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided by the embodiment of the present application is equally applicable to similar technical problems.

The data transmission method provided by the application is described in detail below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a data transmission method according to an embodiment of the present application, where the method may include, but is not limited to, the following steps:

s201, the remote device acquires the first channel quality of the first interface and the second channel quality of the second interface.

In the embodiment of the application, the remote device can establish a first transmission path and a second transmission path with the network device, wherein the first transmission path is that the remote device communicates with the network device through a first interface (such as Uu interface), the second transmission path is that the remote device communicates with the network device through a relay device, and an interface between the remote device and the relay device is a second interface (such as PC5 interface). Here, the first transmission path may be regarded as a direct transmission path, and the second transmission path may be regarded as an indirect transmission path, respectively representing a transmission path in which the remote device communicates with the network device in a direct or indirect manner. The remote device may be a common intelligent terminal, and may also have the characteristics of small battery capacity and low power consumption, and may include, but is not limited to, a smart bracelet, a smart phone, smart glasses, and the like. The relay device is a forwarding device introduced between the remote device and the network device for improving the transmission coverage, and the relay device can forward the data and/or signaling of the network device to the remote device or forward the data and/or signaling of the remote device to the network device, thereby achieving the purpose of expanding the transmission range.

Specifically, the remote device is located at the edge of the serving cell, and may establish two transmission paths with the network device at the same time, that is, a first transmission path and a second transmission path. The process of establishing the first transmission path by the remote device and the network device may refer to a process of establishing a direct communication connection by the terminal device and the network device. Before the remote device establishes the second transmission path, a relay device discovery process is performed. The relay device discovery procedure may be, for example, that the remote device may request a neighboring relay device to provide a service by broadcasting, and then access the network device through the discovered relay device. In case the relay device is found, the remote device may send a notification message to the network device, which may carry the identity of the relay device; the network device may configure the wireless parameters for the relay device and the remote device, respectively, when receiving the notification message, so that the remote device may perform data or signaling transmission with the network device through the relay device, that is, communicate with the network device through the second transmission path.

In the embodiment of the application, under the condition that two transmission paths are established, the remote device can respectively acquire the first channel quality of the first interface of the first transmission path and the second channel quality of the second interface of the second transmission path. Acquiring the first channel quality and acquiring the second channel quality may be performed simultaneously; or first, acquiring the first channel quality, and then, acquiring the second channel quality; or the second channel quality is acquired first and then the first channel quality is acquired.

Alternatively, the remote device may obtain the first channel quality by measuring a reference signal, e.g., a synchronization signal (synchronization signal block, SSB), sent by the network device. The first channel quality may be at least one channel quality parameter of: reference signal received power (reference signal receiving power, RSRP), received signal strength indication (received signal strength indication, RSSI), reference signal received quality (reference signal receiving quality, RSRQ), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), signal to noise ratio (signal noise ratio, SNR), and channel quality indication (channel quality indication, CQI). Or the first channel quality may be determined based on at least one of the channel quality parameters described above, e.g., based on RSRP and RSRQ.

Alternatively, the remote device may obtain the second channel quality by measuring a side-link (SL) signal transmitted by the relay device, for example, a discovery (discovery) signal or a demodulation reference signal (demodulation reference signal, DMRS). The second channel quality may be at least one channel quality parameter of: SL-RSRP, SL-RSSI, SL-RSRQ, SL-SINR, SL-SNR, and SL-CQI. Or the second channel quality may be determined based on at least one of the channel quality parameters described above, e.g., based on SL-RSRP and SL-RSRQ.

The above-mentioned manners of acquiring the first channel quality and the second channel quality are used as examples, and the present application is not limited to what manner to acquire the first channel quality and the second channel quality.

S202, the remote device determines a transmission path according to the first channel quality and/or the second channel quality.

In a first implementation, the remote device may select a transmission path with better communication quality by comparing the first channel quality to a first threshold and comparing the second channel quality to a second or third threshold.

In this manner, the remote device may determine the transmission path according to the following several scenarios:

(1) If the first channel quality is below the first threshold and the second channel quality is above the second threshold, the second transmission path is determined to be the transmission path. A first channel quality being lower than a first threshold value indicates that the channel quality of a first interface where the remote device communicates with the network device is poor, poor or about to be poor, for example, the reference signal received power of the first interface is lower than a preset reference signal received power threshold value (first threshold value); the second channel quality being higher than the second threshold value indicates that the channel quality of the second interface between the remote device and the relay device is better, for example, the reference signal receiving quality of the second interface may be higher than a preset reference signal receiving quality threshold value (second threshold value), where the second transmission path may be determined as the transmission path, that is, the remote device communicates with the network device through the relay device.

(2) If the first channel quality is lower than the first threshold and the second channel quality is lower than the second threshold, one transmission path is selected from the first transmission path and the second transmission path, and the selected one transmission path is determined as the transmission path. The first channel quality is lower than the first threshold and the second channel quality is lower than the second threshold, i.e. the channel quality of both the first interface and the second interface is poor, at which time the remote device may select the transmission path by one of the following two ways: the first mode is that the remote device randomly selects one from the first transmission path and the second transmission path as the transmission path; the second mode is that the remote equipment receives first configuration information from the network equipment and determines a transmission path according to the first configuration information; wherein the first configuration information is used to indicate a transmission path in case the first channel quality is below a first threshold and the second channel quality is below a second threshold, in which way the transmission path selected by the remote device may then be regarded as being preconfigured by the network device.

(3) If the first channel quality is higher than the first threshold and the second channel quality is higher than the third threshold, the second transmission path is determined to be the transmission path. In this case, since both transmission paths are paths enabling efficient transmission of data, the second transmission path is selected only when the second channel quality of the second interface is higher than a third threshold, where the third threshold is a preset threshold that is greater than the second threshold, for example, the third threshold is 3dB higher than the second threshold. This is because the second transmission path is used for the remote device to communicate with the network device via the relay device, and in addition to the channel quality of the second interface between the remote device and the relay device, the channel quality between the relay device and the network device needs to be considered, which tends to consume more transmission resources than the remote device to communicate directly with the network device via the first interface, so that the second transmission path is selected to have a gain only if the second channel quality of the second interface is higher than a larger threshold (third threshold).

(4) If the first channel quality is above the first threshold and the second channel quality is below the third threshold, the first transmission path is determined to be the transmission path. The first channel quality being higher than the first threshold value indicates that the channel quality of the first interface through which the remote device communicates with the network device is better, and the second channel quality being lower than the third threshold value indicates that the channel quality of the first interface through which the remote device communicates with the network device is worse, for example, when the second channel quality is lower than the second threshold value, or when the channel quality of the first interface is not good enough, for example, when the second channel quality is higher than the second threshold value and lower than the third threshold value, the first transmission path is selected, and unnecessary transmission resources do not need to be consumed through the relay device.

In a second implementation, the remote device may select a transmission path with better communication quality by directly comparing the first channel quality with the second channel quality.

And if the second channel quality is higher than the first channel quality and the difference between the second channel quality and the first channel quality is greater than a fourth threshold, determining the second transmission path as the transmission path. Alternatively, in this case, the second channel quality should be represented by the same type of channel quality parameter as the first channel quality, e.g. the first channel quality is represented by RSRP, the second channel quality is represented by SL-RSRP, and if SL-RSRP is 3dB greater than RSRP (i.e. the fourth threshold is 3 dB), the second transmission path may be determined as the final transmission path.

Otherwise, if the second channel quality is smaller than the first channel quality, the first transmission path is determined as the transmission path. Optionally, when the second channel quality and the first channel quality are represented by the same type of channel quality parameter, the second channel quality may be directly compared with the first channel quality, and if the second channel quality is smaller than the first channel quality, that is, the first channel quality representing the first interface is better, the first transmission path is determined as the transmission path.

In a third implementation manner, the remote device may only compare the first channel quality with the first threshold value, or only compare the second channel quality with the second threshold value, so as to select a transmission path with better communication quality.

Specifically, if the first channel quality is higher than the first threshold, the remote device may always select the first transmission path to transmit uplink data/signaling regardless of the second channel quality; alternatively, if the second channel quality is higher than the third threshold, the remote device may always select the second transmission path to transmit uplink data/signaling regardless of the level of the first channel quality. Here, the first threshold value and the third threshold value may be set to larger threshold values, in such a way that the purpose of efficient transmission of data/signaling can also be achieved.

Alternatively, the remote device may periodically acquire the first channel quality and the second channel quality, for example, the remote device may acquire the first channel quality and the second channel quality every 5 seconds, so as to select a transmission path with better communication quality in time, and acquire a better service.

It should be noted that, the first threshold, the second threshold, the third threshold, and the fourth threshold may be predefined, or may be configured through high-layer signaling, where the high-layer signaling may be selected from radio resource control (radio resource control, RRC), system information block (system information block, SIB), and medium access control layer control element (MAC-CE), or may be configured by a network device, or may be agreed by a protocol, or may be changed by a user setting, which is not limited in the embodiment of the present application.

S203, the remote device sends uplink data to the network device through a transmission path. Correspondingly, the network device receives the uplink data from the remote device through the transmission path.

In the embodiment of the application, after determining the transmission path with better communication quality, the remote device can send uplink data to the network device through the transmission path. Data is referred to herein generally and may include signaling because for the underlying layers, the high-layer content of the transmission may be referred to as data, in effect, part of the data and another part of the signaling.

In one implementation, if the transmission path is the first transmission path, that is, when there is uplink data to be transmitted, the remote device may directly send a scheduling request to the network device, or send a buffer report, so that the network device can allocate uplink transmission resources in time.

Optionally, if the first transmission path is determined to be a transmission path, but the remote device is unsuccessful in transmitting uplink data to the network device through the first transmission path, the remote device may switch the first transmission path to the second transmission path. In practical applications, the failure of the remote device to send uplink data to the network device may be that different remote devices select the same transmission resource, the transmission resource conflicts may be caused by poor quality of the current link, and the current data cannot be successfully transmitted, and the remote device may attempt to retransmit the current data later, and if the continuous N times of still unsuccessful transmission, may switch the transmission paths, so as to ensure normal communication between the remote device and the network device, and avoid waste of the transmission resource.

In another implementation, if the transmission path is the second transmission path, that is, the remote device needs to communicate with the network device through the relay device when there is uplink data to be transmitted.

Alternatively, if the second transmission path is determined to be the transmission path, but the remote device may switch the second transmission path to the first transmission path when the remote device transmits the uplink data to the network device through the second transmission path, where the continuous N times of transmission are unsuccessful.

It should be noted that, the value of N may be configured by the network device, or may be preset by the remote device according to a protocol. Unsuccessful transmission by the remote device N consecutive times may refer to receiving a non-acknowledgement NACK N consecutive times or not receiving feedback N consecutive times.

By implementing the embodiment of the application, the remote equipment can select the transmission path with better channel quality through the acquired first channel quality and second channel quality, and then communicate with the network equipment through the selected transmission path, so that the communication quality between the remote equipment and the network equipment is improved, and the selected transmission path can better meet the transmission requirement, thereby effectively transmitting data.

Referring to fig. 3, fig. 3 is a flowchart of a signaling transmission method provided in an embodiment of the present application, where the method describes a manner of receiving a paging message and/or a system message after a remote device determines a transmission path, and the method may include, but is not limited to, the following steps:

S301, the remote device determines a transmission path.

In the embodiment of the present application, the remote device may determine the transmission path according to the embodiment shown in fig. 2.

S302, the relay device forwards the paging message and/or the system message from the network device to the remote device.

Specifically, if the relay device finds that data transmission is performed with the remote device through the second transmission path, the relay device forwards the paging message and/or the system message from the network device to the remote device.

In the embodiment of the present application, if the remote device determines that the transmission path between the remote device and the network device is the second transmission path, that is, the indirect transmission path, the relay device realizes that the second transmission path is better, and the relay device needs to forward the paging message and/or the system message sent by the network device to the remote device, at this time, the remote device receives the paging message and/or the system message from the network device through the relay device.

In one implementation, if the remote device sends uplink data to the network device through the second transmission path, that is, sends the uplink data to the network device through the relay device, the network device may send a feedback message that the reception is successful to the remote device through the relay device after receiving the uplink data. Correspondingly, the network device may also send a paging message and/or a system message to the remote device through the relay device.

It should be noted that, if the relay device receives uplink data or signaling sent by the remote device to the network device from the second transmission path, or receives downlink data or signaling sent by the network device for the remote device, the paging message and/or the system message may be forwarded to the remote device through the second interface between the relay device and the remote device.

In yet another implementation, if the transmission path between the remote device and the network device is the second transmission path, the remote device may move out of the network coverage area, and then communication with the network device is achieved by means of the relay device. In this case, the remote device may be in any one of an idle state, an inactive state, or a connected state. When the remote device is in an idle state or in an inactive state, the relay device may be responsible for monitoring paging messages that the network device may send to the remote device, and at the same time, the remote device may send configuration parameters and device identifiers of the monitored paging to the relay device, so that the relay device may determine paging occasions of the remote device. It should be noted that the relay device may be in any state at this time, for example, an inactive state or a connected state, but when the remote device is in the connected state, the relay device is also in the connected state.

S303, the network equipment directly transmits paging information and/or system information to the remote equipment.

In the embodiment of the application, if the network equipment finds that the data transmission is performed with the remote equipment through the first transmission path, the network equipment directly sends the paging message and/or the system message to the remote equipment. That is, when the remote device determines that the transmission path with the network device is the first transmission path, i.e., the direct transmission path, the remote device may directly receive the paging message and/or the system message from the network device through the first interface.

In the embodiment shown in fig. 3, the remote device may receive paging messages and/or system messages from the network device according to the determined transmission path of the uplink data, so as to ensure the communication quality of the transmission path for receiving these messages.

Referring to fig. 4, fig. 4 is a flowchart of another data transmission method provided in an embodiment of the present application, where the method is applied to a remote device, the remote device has established a first transmission path and a second transmission path with a network device, the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through a relay device, and an interface between the remote device and the relay device is a second interface, and the method may include, but is not limited to, the following steps:

S401, the remote device receives second configuration information from the network device.

In the embodiment of the present application, the remote device may receive second configuration information from the network device, where the second configuration information may be used to indicate the first transmission path or the second transmission path.

In one implementation, the remote device may establish an RRC connection, enter an RRC connected state, i.e., establish a signaling bearer, then use the established signaling bearer to transmit an RRC message to establish a data bearer, and then use the established data bearer to perform data transmission or reception. When the remote device receives the second configuration information from the network device, the second configuration information may assist the remote device in transmission path selection. Optionally, the transmission path indicated by the second configuration information may be determined by screening by the network device, or may be preconfigured.

S402, the remote equipment determines a transmission path according to the second configuration information.

In the embodiment of the present application, the remote device may also determine the transmission path according to the second configuration information, without acquiring the first channel quality of the first interface and the second channel quality of the second interface.

Specifically, if the second configuration information indicates that the remote device communicates with the network device through the first transmission path, the remote device may send uplink data to the network device through the first interface; if the second configuration information indicates that the remote device communicates with the network device through the second transmission path, the remote device may send uplink data to the network device through the relay device.

In one possible implementation, the remote device may establish only the first transmission path with the network device before receiving the second configuration information from the network device, where the second configuration information may be used to instruct the remote device to switch the first transmission path to the second transmission path, and accordingly, the second configuration information may include a configuration parameter of the relay device, so that the remote device may switch the first transmission path to the second transmission path according to the second configuration information, that is, communicate with the network device through the relay device.

In another possible implementation manner, before receiving the second configuration information from the network device, the remote device may also establish only the second transmission path with the network device, where the second configuration information may be used to instruct the remote device to switch the second transmission path to the first transmission path, where a corresponding practical application scenario may be, for example, that the remote device moves from outside the network coverage to within the network coverage, and switches the second transmission path to the first transmission path according to the second configuration information from the network device, that is, directly communicates with the network device through the first interface.

In the embodiment shown in fig. 4, the remote device may determine the transmission path according to the second configuration information sent by the network device, and with the aid of the network device, implement selection of the transmission path.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the application. As shown in fig. 5, the communication device 50 includes a processing unit 501 and a communication unit 502.

In one implementation, the communication apparatus 50 is a remote device or an apparatus that mates with a remote device:

a processing unit 501, configured to obtain a first channel quality of a first interface and a second channel quality of a second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; a communication unit 502, configured to send uplink data to the network device through a transmission path.

Optionally, the processing unit 501 is further configured to determine the second transmission path as the transmission path if the first channel quality is lower than the first threshold and the second channel quality is higher than the second threshold; or if the first channel quality is lower than the first threshold value and the second channel quality is lower than the second threshold value, selecting one transmission path from the first transmission path and the second transmission path, and determining the selected one transmission path as the transmission path; or if the first channel quality is higher than the first threshold value and the second channel quality is higher than the third threshold value, determining the second transmission path as the transmission path; or, if the second channel quality is higher than the third threshold, determining the second transmission path as the transmission path; or if the first channel quality is higher than the first threshold value and the second channel quality is lower than the third threshold value, determining the first transmission path as the transmission path; or if the first channel quality is higher than the first threshold, determining the first transmission path as the transmission path; wherein the third threshold is greater than the second threshold.

Optionally, the processing unit 501 is further configured to determine the second transmission path as the transmission path if the second channel quality is higher than the first channel quality and a difference between the second channel quality and the first channel quality is greater than a fourth threshold; or if the second channel quality is less than the first channel quality, determining the first transmission path as the transmission path.

Optionally, the communication unit 502 is further configured to receive first configuration information from the network device, where the first configuration information is used to indicate a transmission path in a case where the first channel quality is lower than a first threshold value and the second channel quality is lower than a second threshold value; the processing unit 501 is further configured to determine the transmission path according to the first configuration information if the first channel quality is lower than the first threshold and the second channel quality is lower than the second threshold.

Optionally, the communication unit 502 is further configured to receive second configuration information from the network device, where the second configuration information is used to indicate the first transmission path or the second transmission path; the processing unit 501 is further configured to determine a transmission path according to the second configuration information.

Optionally, the communication unit 502 is further configured to receive, if the transmission path is the first transmission path, a paging message and/or a system message from the network device through the first interface; or if the transmission path is the second transmission path, receiving the paging message and/or the system message from the network device through the relay device.

Optionally, the processing unit 501 is further configured to determine that the transmission path is the second transmission path if the first transmission path is unsuccessful in N consecutive transmissions; or if the second transmission path is unsuccessful in N continuous transmissions, determining the transmission path as the first transmission path; wherein N is a positive integer, and the value of N is configured by the network device or preset by the protocol.

Optionally, the unsuccessful transmission for N consecutive times is a non-acknowledgement NACK received for N consecutive times, and/or no feedback is received for N consecutive times.

In another implementation, the communication apparatus 50 is a network device or an apparatus that mates with a network device:

a communication unit 502, configured to receive uplink data, where a source address of the uplink data is an address of a remote device; a processing unit 501, configured to determine a transmission path of uplink data; the communication unit 502 is further configured to send a paging message and/or a system message to the remote device through the first interface if the transmission path is the first transmission path; or if the transmission path is the second transmission path, sending the paging message and/or the system message to the remote device through the relay device.

In yet another implementation, the communication apparatus 50 is a relay device or an apparatus that mates with a relay device:

A communication unit 502, configured to send a paging message and/or a system message to the remote device through the second interface if uplink data or signaling is received from the second transmission path; or if downlink data or signaling for the remote device is received from the network device, sending a paging message and/or a system message to the remote device through the second interface.

Referring to fig. 6, fig. 6 is a schematic diagram of another communication device 60 according to an embodiment of the present application. The communication device 60 may include a transceiver 601 and a processor 602. Optionally, the communication device may further comprise a memory 603. Wherein the transceiver 601, processor 602, memory 603 may be connected by a bus 604 or otherwise. The bus is shown in bold lines in fig. 6, and the manner in which other components are connected is merely illustrative and not limiting. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.

The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. The specific connection medium between the transceiver 601, the processor 602, and the memory 603 is not limited in the embodiment of the present application.

Memory 603 may include read only memory and random access memory and provide instructions and data to processor 602. A portion of memory 603 may also include non-volatile random access memory.

The processor 602 may be a central processing unit (Central Processing Unit, CPU), the processor 602 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 602 may be any conventional processor or the like.

In an alternative embodiment, memory 603 is used for storing program instructions; a processor 602 for invoking program instructions stored in memory 603 for performing steps performed by the remote device in the corresponding embodiment of fig. 2-4.

In another alternative embodiment, memory 603 is used for storing program instructions; a processor 602 for invoking program instructions stored in the memory 603 for performing steps performed by the network device in the corresponding embodiment of fig. 2-4.

In yet another alternative embodiment, memory 603 is used for storing program instructions; a processor 602 for invoking program instructions stored in the memory 603 for performing the steps performed by the relay device in the corresponding embodiment of fig. 2-4.

In the embodiments of the present application, the methods provided by the embodiments of the present application can be implemented by running a computer program (including program code) capable of executing the steps involved in the above-described methods on a general-purpose computing device such as a computer, including a processing element such as a CPU, a random access storage medium (Random Access Memory, RAM), a Read-Only Memory (ROM), or the like, and a storage element. The computer program may be recorded on, for example, a computer-readable recording medium, and loaded into and run in the above-described computing device through the computer-readable recording medium.

Based on the same inventive concept, the principle and beneficial effects of the communication device 60 according to the embodiment of the present application are similar to those of the embodiment of fig. 2-4, and may be referred to as the principle and beneficial effects of implementation of the method, which are not described herein for brevity.

The communication device may be, for example: a chip, or a chip module.

The embodiment of the application also provides a chip which can execute the related steps of the remote equipment in the embodiment of the method. The chip is used for: acquiring a first channel quality of a first interface and a second channel quality of a second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is a first transmission path or a second transmission path; and sending the uplink data to the network equipment through the transmission path.

In another implementation, the chip may perform the steps related to the relay device in the foregoing method embodiment. The chip is used for: if uplink data or signaling is received from the second transmission path, sending a paging message and/or a system message to the remote device through the second interface; or if downlink data or signaling for the remote device is received from the network device, sending a paging message and/or a system message to the remote device through the second interface.

In yet another implementation, the chip may perform the relevant steps of the network device in the foregoing method embodiment. The chip is used for: receiving uplink data, and determining a transmission path of the uplink data, wherein a source address of the uplink data is an address of remote equipment; if the transmission path is the first transmission path, sending a paging message and/or a system message to the remote equipment through the first interface; or if the transmission path is the second transmission path, sending the paging message and/or the system message to the remote device through the relay device.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a chip module according to an embodiment of the application. The chip module 70 may perform the steps related to the communication device 50 in the foregoing method embodiment, where the chip module 70 includes: a communication interface 701 and a chip 702.

The communication interface is used for carrying out internal communication of the chip module or carrying out communication between the chip module and external equipment; the chip is used for realizing the functions of the communication device in the embodiment of the application, and particularly, the corresponding embodiment of fig. 2-4 is referred. Optionally, the chip module 70 may further include a memory module 703 and a power module 704. The memory module 703 is used for storing data and instructions. The power module 704 is used for providing power to the chip module.

For each device and product applied to or integrated in the chip module, each module included in the device and product may be implemented by hardware such as a circuit, and different modules may be located in the same component (e.g. a chip, a circuit module, etc.) of the chip module or different components, or at least some modules may be implemented by using a software program, where the software program runs on a processor integrated in the chip module, and the remaining (if any) modules may be implemented by hardware such as a circuit.

Embodiments of the present application also provide a computer readable storage medium having one or more instructions stored therein, the one or more instructions being adapted to be loaded by a processor and to perform the method provided by the above-described method embodiments.

The present application also provides a computer program product comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method provided by the method embodiments described above.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.

It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of action described, as some steps may be performed in other order or simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the readable storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, etc.

The foregoing disclosure is merely a preferred embodiment of the present application, but is not intended to limit the scope of the claims.

Claims

1. The data transmission method is characterized in that the method is applied to remote equipment, the remote equipment and network equipment establish a first transmission path and a second transmission path, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through a relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the method comprises the following steps:

acquiring a first channel quality of the first interface and a second channel quality of the second interface;

determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is the first transmission path or the second transmission path;

and sending uplink data to the network equipment through the transmission path.

2. The method of claim 1, wherein the determining a transmission path based on the first channel quality and/or the second channel quality comprises:

if the first channel quality is lower than a first threshold value and the second channel quality is higher than a second threshold value, determining the second transmission path as a transmission path; or,

If the first channel quality is lower than a first threshold value and the second channel quality is lower than a second threshold value, selecting one transmission path from the first transmission path and the second transmission path, and determining the selected one transmission path as a transmission path; or,

if the first channel quality is higher than a first threshold value and the second channel quality is higher than a third threshold value, determining the second transmission path as a transmission path; or,

if the second channel quality is higher than a third threshold, determining the second transmission path as a transmission path; or,

if the first channel quality is higher than a first threshold value and the second channel quality is lower than a third threshold value, determining the first transmission path as a transmission path; or,

if the first channel quality is higher than a first threshold, determining the first transmission path as a transmission path;

wherein the third threshold is greater than the second threshold.

3. The method of claim 1, wherein the determining a transmission path based on the first channel quality and/or the second channel quality comprises:

if the second channel quality is higher than the first channel quality and the difference between the second channel quality and the first channel quality is greater than a fourth threshold, determining the second transmission path as a transmission path; or,

And if the second channel quality is smaller than the first channel quality, determining the first transmission path as a transmission path.

4. The method of claim 1, wherein the method further comprises:

receiving first configuration information from the network device, the first configuration information being used to indicate a transmission path in the event that the first channel quality is below a first threshold and the second channel quality is below a second threshold;

said determining a transmission path according to said first channel quality and/or said second channel quality, comprising:

and if the first channel quality is lower than the first threshold value and the second channel quality is lower than the second threshold value, determining a transmission path according to the first configuration information.

5. The method of claim 1, wherein the method further comprises:

receiving second configuration information from the network device, wherein the second configuration information is used for indicating the first transmission path or the second transmission path;

and determining the transmission path according to the second configuration information.

6. The method of any one of claims 1-5, wherein the method further comprises:

If the transmission path is the first transmission path, receiving a paging message and/or a system message from the network equipment through the first interface; or,

and if the transmission path is the second transmission path, receiving a paging message and/or a system message from the network equipment through the relay equipment.

7. The method of claim 1, wherein the method comprises,

if the first transmission path is unsuccessful in N continuous transmissions, determining that the transmission path is the second transmission path; or,

if the second transmission path is unsuccessful in N continuous transmissions, determining the transmission path as the first transmission path;

wherein N is a positive integer, and the value of N is configured by the network device or preset by a protocol.

8. The method of claim 7, wherein the unsuccessful transmission of N consecutive transmissions comprises receiving a non-acknowledgement NACK N consecutive times, and/or receiving no feedback N consecutive times.

9. The data transmission method is characterized in that the method is applied to network equipment, a first transmission path and a second transmission path are established between remote equipment and the network equipment, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through a relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the method comprises the following steps:

Receiving uplink data, and determining a transmission path of the uplink data, wherein a source address of the uplink data is an address of the remote equipment;

if the transmission path is the first transmission path, sending a paging message and/or a system message to the remote device through the first interface; or,

and if the transmission path is the second transmission path, sending a paging message and/or a system message to the remote equipment through the relay equipment.

10. The signaling transmission method is characterized in that the method is applied to relay equipment, a first transmission path and a second transmission path are established between remote equipment and network equipment, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through the relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the method comprises the following steps:

if uplink data or signaling is received from the second transmission path, sending a paging message and/or a system message to the remote device through the second interface; or,

And if downlink data or signaling for the remote equipment is received from the network equipment, sending a paging message and/or a system message to the remote equipment through the second interface.

11. The communication device is characterized in that the device is applied to a remote device, the remote device and a network device have established a first transmission path and a second transmission path, the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through a relay device, and an interface between the remote device and the relay device is a second interface; the device comprises:

a processing unit, configured to obtain a first channel quality of the first interface and a second channel quality of the second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is the first transmission path or the second transmission path;

and the communication unit is used for sending uplink data to the network equipment through the transmission path.

12. The communication device is characterized in that the device is applied to network equipment, a first transmission path and a second transmission path are established between remote equipment and the network equipment, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through a relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the device comprises:

The communication unit is used for receiving uplink data, and the source address of the uplink data is the address of the remote equipment;

a processing unit, configured to determine a transmission path of the uplink data;

the communication unit is further configured to send a paging message and/or a system message to the remote device through the first interface if the transmission path is the first transmission path; or if the transmission path is the second transmission path, sending a paging message and/or a system message to the remote device through the relay device.

13. The communication device is characterized in that the device is applied to a relay device, a first transmission path and a second transmission path are established between a remote device and a network device, the first transmission path is that the remote device communicates with the network device through a first interface, the second transmission path is that the remote device communicates with the network device through the relay device, and an interface between the remote device and the relay device is a second interface; the device comprises:

a communication unit, configured to send a paging message and/or a system message to the remote device through the second interface if uplink data or signaling is received from the second transmission path; or if downlink data or signaling for the remote device is received from the network device, sending a paging message and/or a system message to the remote device through the second interface.

14. The chip is characterized in that the chip is applied to remote equipment, the remote equipment and network equipment establish a first transmission path and a second transmission path, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through a relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the chip is used for acquiring the first channel quality of the first interface and the second channel quality of the second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is the first transmission path or the second transmission path; and sending uplink data to the network equipment through the transmission path.

15. The module equipment is characterized in that the module equipment is applied to remote equipment, the remote equipment and network equipment establish a first transmission path and a second transmission path, the first transmission path is that the remote equipment communicates with the network equipment through a first interface, the second transmission path is that the remote equipment communicates with the network equipment through a relay equipment, and an interface between the remote equipment and the relay equipment is a second interface; the module equipment includes communication module, power module, storage module and chip module, wherein:

The power supply module is used for providing electric energy for the module equipment;

the storage module is used for storing data and instructions;

the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment;

the chip module is used for: acquiring a first channel quality of the first interface and a second channel quality of the second interface; determining a transmission path according to the first channel quality and/or the second channel quality, wherein the transmission path is the first transmission path or the second transmission path; and sending uplink data to the network equipment through the transmission path.

16. A computer readable storage medium, characterized in that the computer storage medium has stored therein a computer program which, when run on a communication device, causes the communication device to perform the method of any one of claims 1-8, or to perform the method of claim 9, or to perform the method of claim 10.