WO2021056308A1 - Processing method and network device - Google Patents

Abstract

Disclosed in embodiments of the present application is a processing method, comprising: a network device determines whether a first uplink subframe is an uplink access subframe, wherein the first uplink subframe is configured to be used by a terminal device to transmit hybrid automatic repeat request (HARQ) information corresponding to a first downlink subframe, the HARQ information is sent to the network device by means of a signal forwarding device, and the uplink access subframe is configured to be used by the signal forwarding device to receive the HARQ information sent by the terminal device. If the first uplink subframe is an uplink access subframe, then the network device uses a HARQ transmission mechanism in the first downlink subframe and receives an acknowledgement (ACK) message or a negative acknowledgement (NACK) message sent by the terminal device. If the first uplink subframe is not an uplink access subframe, then the network device determines that the HARQ information corresponding to the first downlink subframe is an ACK message. In a communications system comprising a signal forwarding device, by means of the solution provided in the present application, a network device may perform downlink transmission in all subframes, thereby improving the rate of transmission.

Description

A processing method and network equipment Technical field

This application relates to the field of communication technology, and in particular to a processing method.

Background technique

If the terminal device is in an area with poor signal coverage of the network device, the download rate of the terminal device is slow, the web browsing speed is slow, and the user experience is poor. In order to solve this problem, improve the signal quality of the area without signal coverage or weak coverage, and effectively improve Voice call services and data transmission services improve user experience, and a signal forwarding device is introduced on the transmission path of network equipment and terminal equipment.

Since the signal amplified by the signal forwarding device is in the same frequency band as the received signal, if the gain is greater than the antenna isolation, it will constitute self-excited interference, causing the signal forwarding device to fail to work normally and seriously affecting the signal quality. Therefore, in order to solve the problem of self-excited interference, that is, in order to prevent the strong signal sent by the signal forwarding device from interfering with the signal received by itself, this signal forwarding device adopts a time-division multiplexed frame structure. The signal forwarding device can only receive the uplink signal sent by the terminal device in the preset access uplink subframe, and cannot receive the uplink signal in the non-access uplink subframe. The signal forwarding device can only transmit the uplink signal to the network in the preset relay uplink subframe. The uplink signal sent by the device cannot send the uplink signal to the network device in the non-relay uplink subframe.

However, in the above solution, the terminal device can only send uplink signals in a predetermined subframe, so when a network device sends a downlink signal to the terminal device, it can only send it in a predetermined subframe, so that there will be hybrid automatic retransmission ( Hybrid automatic retransmission request (HARQ) feedback, this relationship determines that the downlink subframe needs to correspond to the uplink access subframe. As a result, even in a scene with good channel conditions, the network device can still only use part of the subframes, which causes the network device to reduce the transmission rate of the terminal device under the signal forwarding device.

Summary of the invention

The embodiments of the present application provide a processing method and a network device. In a communication system with a signal forwarding device, the network device can perform downlink transmission in all subframes to increase the transmission rate.

To achieve the foregoing objectives, the embodiments of the present application provide the following technical solutions:

The first aspect of the present application provides a processing method, which may include: a network device determines whether a first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit the data corresponding to the first downlink subframe. Hybrid automatic repeat request HARQ information, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. If the first uplink subframe is an uplink access subframe, the network device adopts the HARQ transmission mechanism in the first downlink subframe, and receives an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device. If the first uplink subframe is not an uplink access subframe, the network device determines that the HARQ information corresponding to the first downlink subframe is an ACK message. Compared with the prior art, in a communication system with a signal forwarding device, the network device can only perform downlink transmission when the uplink subframe corresponding to the downlink subframe is an uplink access subframe. The solution provided by this application, the network device It is possible to perform downlink transmission in all subframes to increase the transmission rate.

Optionally, in combination with the above first aspect, in the first possible implementation manner, if the first uplink subframe is not an uplink access subframe, it may also include: the network device adopts a radio link in the first downlink subframe Controls the automatic repeat request ARQ transmission mechanism of the RLC layer.

Optionally, in combination with the foregoing first aspect or the first possible implementation manner of the first aspect, in the second possible implementation manner, the network device determining whether the first uplink subframe is an uplink access subframe may include: The network device determines that the first downlink subframe corresponds to the first uplink subframe according to the set HARQ timing relationship. The network device determines whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

Optionally, in combination with the foregoing first aspect or the first aspect of the first aspect, and the second possible implementation manner of the first aspect, in a third possible implementation manner, it may further include: the network device determines the second uplink subframe Whether it is an uplink access subframe, the second uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the second downlink subframe, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe The frame is configured for the signal forwarding device to receive HARQ information sent by the terminal device. If the second uplink subframe is not an uplink access subframe, the network device sends the same information as the third downlink subframe in the second downlink subframe, and the third downlink subframe is the N adjacent subframes of the second downlink subframe. Frame, N is a positive integer.

Optionally, in combination with the third possible manner of the first aspect described above, in the fourth possible implementation manner, the network device determining whether the second uplink subframe is an uplink access subframe may include: the network device according to the setting The HARQ timing relationship determines that the second downlink subframe corresponds to the second uplink subframe. The network device determines whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

A second aspect of the present application provides a network device, which may include: a memory for storing computer-readable instructions.

And a processor coupled with the memory, the processor is configured to perform the following operations: determine whether the first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit the hybrid corresponding to the first downlink subframe The automatic repeat request HARQ information, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. If the first uplink subframe is an uplink access subframe, the HARQ transmission mechanism is adopted in the first downlink subframe. It may also include a communication interface, which is coupled with the processor, and is configured to receive an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device if the first uplink subframe is an uplink access subframe. The processor is further configured to determine that the HARQ information corresponding to the first downlink subframe is an ACK message if the first uplink subframe is not an uplink access subframe.

Optionally, with reference to the above second aspect, in the first possible implementation manner, the processor is further configured to use the radio link in the first downlink subframe when the first uplink subframe is not an uplink access subframe. Controls the automatic repeat request ARQ transmission mechanism of the RLC layer.

Optionally, in combination with the foregoing second aspect or the first possible implementation manner of the second aspect, in the second possible implementation manner, the processor is specifically configured to: determine the first downlink according to the set HARQ timing relationship The subframe corresponds to the first uplink subframe. Determine whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

Optionally, in combination with the foregoing second aspect or the first possible implementation manner of the second aspect, and the second possible implementation manner of the second aspect, in a third possible implementation manner, the processor is further configured to determine the second uplink subframe Whether it is an uplink access subframe, the second uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the second downlink subframe, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe The frame is configured for the signal forwarding device to receive HARQ information sent by the terminal device. The communication interface is also used to send the same information as the third downlink subframe in the second downlink subframe if the second uplink subframe is not an uplink access subframe, and the third downlink subframe is N of the second downlink subframe. Adjacent subframes, N is a positive integer.

Optionally, in combination with the third possible manner of the second aspect described above, in the fourth possible implementation manner, the processor is specifically configured to: determine, according to the set HARQ timing relationship, that the second downlink subframe corresponds to the second uplink Subframe. Determine whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

A third aspect of the present application provides a network device, which may include: a storage unit for storing computer-readable instructions.

And the processing unit coupled with the storage unit, the processing unit is configured to perform the following operations: determine whether the first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit the corresponding first downlink subframe The hybrid automatic repeat request HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. If the first uplink subframe is an uplink access subframe, the HARQ transmission mechanism is adopted in the first downlink subframe. It may also include a transceiver unit, which is coupled with the processing unit, and is configured to receive an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device if the first uplink subframe is an uplink access subframe. The processing unit is further configured to determine that the HARQ information corresponding to the first downlink subframe is an ACK message if the first uplink subframe is not an uplink access subframe.

Optionally, in combination with the above third aspect, in the first possible implementation manner, the processing unit is further configured to use the radio link in the first downlink subframe when the first uplink subframe is not an uplink access subframe. Controls the automatic repeat request ARQ transmission mechanism of the RLC layer.

Optionally, in combination with the foregoing third aspect or the first possible implementation manner of the third aspect, in the second possible implementation manner, the processing unit is specifically configured to: determine the first downlink according to the set HARQ timing relationship The subframe corresponds to the first uplink subframe. Determine whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

Optionally, in combination with the foregoing third aspect or the first possible implementation manner of the third aspect and the second possible implementation manner of the third aspect, in the third possible implementation manner, the processing unit is further configured to determine the second uplink subframe Whether it is an uplink access subframe, the second uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the second downlink subframe, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe The frame is configured for the signal forwarding device to receive HARQ information sent by the terminal device. The transceiver unit is further configured to send the same information as the third downlink subframe in the second downlink subframe if the second uplink subframe is not an uplink access subframe, and the third downlink subframe is N of the second downlink subframe. Adjacent subframes, N is a positive integer.

Optionally, in combination with the third possible manner of the third aspect described above, in the fourth possible implementation manner, the processing unit is specifically configured to: determine that the second downlink subframe corresponds to the second uplink according to the set HARQ timing relationship Subframe. Determine whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

The fourth aspect of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when it runs on a computer, the computer can execute any one of the possible implementations of the first aspect of the first aspect.的处理方法。 Treatment methods.

The fifth aspect of the present application provides a computer program product containing instructions, which when run on a computer, enables the computer to execute the processing method of the first aspect or any one of the possible implementation manners of the first aspect.

In the technical solution provided by this application, for the subordinate terminals of the signal forwarding device, the network device adopts different transmission mechanisms according to different subframe types: there is a downlink subframe corresponding to the feedback uplink access subframe, and the HARQ transmission mechanism is adopted, waiting for the terminal Feedback HARQ results; downlink subframes without corresponding feedback subframes use non-HARQ transmission mechanism. The network equipment always thinks that the HARQ result of the terminal equipment in this subframe is ACK, and the network equipment can perform downlink transmission in all subframes to increase the transmission rate .

Description of the drawings

Figure 1 is a schematic diagram of a wireless communication system;

Figure 2 is a schematic diagram of another wireless communication system;

Fig. 3 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application;

Figure 4 is a schematic diagram of a time division multiplexing frame structure;

Fig. 5 is a schematic diagram of HARQ feedback by terminal equipment;

FIG. 6 is a schematic flowchart of a processing method provided by an embodiment of this application;

Figure 7 is a schematic diagram of HARQ forwarding by a signal forwarding device;

FIG. 8 is a schematic flowchart of another processing method provided by an embodiment of the application;

FIG. 9 is a schematic diagram of the hardware structure of a network device provided by an embodiment of the application;

FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of this application.

detailed description

The following describes the embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. A person of ordinary skill in the art knows that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The embodiments of the present application provide a processing method, a network device, and a storage medium. In a communication system with a signal forwarding device, the network device can perform downlink transmission in all subframes to increase the transmission rate. Detailed descriptions are given below.

The terms "first" and "second" in the specification and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments described herein can be implemented in a sequence other than the content illustrated or described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or modules is not necessarily limited to those clearly listed. Those steps or modules may include other steps or modules that are not clearly listed or are inherent to these processes, methods, products, or equipment. The naming or numbering of steps appearing in this application does not mean that the steps in the method flow must be executed in the time/logical sequence indicated by the naming or numbering. The named or numbered process steps can be implemented according to the The technical purpose changes the execution order, as long as the same or similar technical effects can be achieved. The division of modules presented in this application is a logical division. In actual applications, there may be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored , Or not to execute, in addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be through some ports, and the indirect coupling or communication connection between the modules may be electrical or other similar forms. There are no restrictions in the application. In addition, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed to multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the purpose of this application program.

It should be noted that in the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand their meaning. Information (information), signal (signal), message (message), sometimes can be mixed, it should be pointed out that, when the difference is not emphasized, the meaning to be expressed is the same.

It should be understood that the network device mentioned in this application can be any device with wireless transceiver function or a chip that can be installed in the device. The device includes but is not limited to: base station, evolved node B (eNB), Home base stations, access points (AP), wireless relay nodes, wireless backhaul nodes, transmission points (TP), or transmission and reception points in wireless fidelity (WIFI) systems Reception point, TRP), etc., can also be the gNB in the NR system, or can also be a component or part of the equipment that constitutes a base station, such as a central unit (CU), a distributed unit (DU) or a baseband unit (baseband unit, BBU), etc. It should be understood that, in the embodiments of the present application, the specific technology and specific device form adopted by the radio access network device are not limited. In this application, wireless access network equipment is referred to as network equipment. Unless otherwise specified, in this application, network equipment refers to wireless access network equipment. In this application, the network device may refer to the network device itself, or may be a chip applied to the network device to complete the wireless communication processing function.

In some deployments, gNB may include CU and DU. The gNB may also include a radio unit (RU). CU implements some functions of gNB, DU implements some functions of gNB. For example, CU implements radio resource control (RRC), packet data convergence protocol (PDCP) layer functions, and DU implements wireless link. Channel control (radio link control, RLC), media access control (media access control, MAC) and physical (physical, PHY) layer functions. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used. It is considered to be sent by DU, or sent by DU+RU. It can be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU can be divided into network equipment in the access network RAN, or the CU can be divided into network equipment in the core network CN, which is not limited here.

It should also be understood that the terminal equipment mentioned in this application may also be referred to as a terminal, user equipment (UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), and so on. The terminal device in the embodiment of the application can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, and can also be applied to virtual reality (VR) and augmented reality (AR). ), industrial control, self-driving, remote medical, smart grid, transportation safety, smart city, and smart home ) And other wireless terminals in the scene. In this application, the aforementioned terminal devices and chips applicable to the aforementioned terminal devices are collectively referred to as terminal devices. It should be understood that the embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal device.

To facilitate the understanding of the embodiments of the present application, the communication systems shown in FIG. 1 and FIG. 2 are taken as examples to describe in detail the communication systems applicable to the embodiments of the present application. Figures 1 and 2 are schematic diagrams of wireless communication systems applicable to embodiments of the present application. As shown in FIG. 1, the wireless communication system may include a single or multiple network devices, or as shown in FIG. 2, the communication system may include a single or multiple terminal devices. A single network device can transmit data or control signaling to a single or multiple terminal devices. Multiple network devices can also transmit data or control signaling for a single terminal device at the same time. The wireless communication system can support coordinated multiple points transmission (CoMP), that is, multiple cells or multiple network devices can cooperate to participate in the data transmission of one terminal device or jointly receive data sent by one terminal device, or multiple A cell or multiple network devices perform coordinated scheduling or coordinated beamforming. Wherein, the multiple cells may belong to the same network device or different network devices, and may be selected according to channel gain or path loss, received signal strength, received signal instruction, and the like.

It should be understood that FIG. 1 or FIG. 2 is only for ease of understanding, and schematically shows network equipment and terminal equipment, but this should not constitute any limitation to this application. The wireless communication system may also include more or less numbers of networks. Devices can also include a larger number of terminal devices. The network devices communicating with different terminal devices can be the same network device or different network devices. The number of network devices communicating with different terminal devices can be the same. It can also be different, and this application includes but is not limited to this.

In the communication system shown in Figure 1 or Figure 2, if the terminal device is in an area with poor network device signal coverage, the download rate of the terminal device is slow, the web browsing speed is slow, and the user experience is poor. In order to solve this problem, improve Signal quality in areas with no signal coverage or weak coverage effectively improves voice call services and data transmission services, and improves user experience. A signal forwarding device is introduced on the transmission path of network equipment and terminal equipment. As shown in FIG. 3, it is a schematic structural diagram of a communication system including the signal forwarding device. As shown in Figure 3, the signal forwarding device may include two parts. The first part is used to amplify the received downlink signal sent by the network device and send the amplified downlink signal to the terminal device, and the second part is used to receive the downlink signal from the terminal. The uplink signal of the device, and the uplink signal is sent to the network device. Hereinafter, the first part is referred to as the downlink direct transmission amplification module, the second part is referred to as the uplink digital forwarding module, the transmission link between the network equipment and the signal forwarding equipment is called the relay link, and the signal forwarding equipment and terminal equipment The transmission link between is called the access link. When the relay link and the access link are at the same frequency, the signal forwarding equipment may have self-excited interference. Specifically, high-gain signal forwarding equipment can more effectively improve the network quality, but due to the signal amplified by the signal forwarding equipment It is in the same frequency band as the received signal, that is, the relay link and the access link are at the same frequency. If the gain is greater than the antenna isolation, it will constitute self-excited interference, causing the signal forwarding device to fail to work normally and seriously affecting the signal quality. Therefore, in order to solve the problem of self-excited interference, that is, in order to prevent the strong signal sent by the signal forwarding device from interfering with the signal received by itself, this signal forwarding device adopts a time-division multiplexed frame structure. The following is an explanation with reference to FIG. 4, which is a schematic diagram of a time division multiplexing frame structure. Assuming that frame m includes 10 subframes, and m is a positive integer, the relay uplink subframe and the access uplink subframe occupies 5 subframes respectively (the access uplink subframe and the uplink access subframe are often used in this application). Mixed use, when the difference between the two is not particularly emphasized, they mean the same meaning), the terminal equipment can only send uplink signals in the preset access uplink subframes, and cannot send uplink signals in the non-access uplink subframes. The forwarding device can only receive the uplink signal sent by the terminal device in the preset access uplink subframe, and cannot receive the uplink signal in the non-access uplink subframe. The signal forwarding device can only relay the uplink signal to the network device in the preset uplink subframe. The transmitted uplink signal cannot be sent to the network equipment in the non-relay uplink subframe. In Figure 4, the block A represents the relay uplink subframe, and the block B represents the access uplink subframe. A and B are here again. No special meaning, just to distinguish between relay uplink subframes and access uplink subframes. Through the above configuration, the signal forwarding device cannot both receive the signal from the terminal device and send the signal to the network device in the same subframe, so as to avoid causing self-excited interference.

However, in the above solution, the terminal device can only send uplink signals in a predetermined subframe, so when a network device sends a downlink signal to the terminal device, it can only send it in a predetermined subframe, so that there will be hybrid automatic retransmission ( Hybrid automatic retransmission request (HARQ) feedback, this relationship determines that the downlink subframe needs to correspond to the uplink access subframe. In this application, downlink subframes are sometimes referred to as downlink transmission subframes, downlink transmission subframes, downlink transmission subframes, or access downlink subframes. When their differences are not particularly emphasized, they have the same meaning. For example, as shown in Figure 5, a schematic diagram of the terminal equipment feeding back HARQ, as shown in Figure 5, assuming that the terminal equipment uses frequency division duplexing-long term evolution (FDD-LTE) communication, assuming that Frame n+4 is the access uplink subframe, then the network device can only send downlink data to the terminal device in subframe n, so that the terminal device can feed back HARQ in subframe n+4, in other words, subframe n is When accessing the downlink subframe, n is a positive integer, the terminal device will feed back HARQ in the n+4 subframe, that is, the terminal device will feed back an acknowledgement (ACK) message or a negative-acknowledgement (negative-acknowledgement) in the n+4 subframe , NACK) message, namely: ACK and NACK messages to inform the network equipment whether the signal sent by it is correctly received. Among them, the feedback ACK message indicates that the terminal device correctly received the signal sent by the network device, and the feedback NACK message indicates that the terminal device did not correctly receive the signal sent by the network device, or the received signal was incorrect. In Figure 5, the square C represents the access to the downlink sub-device. For the frame, the block B represents the access uplink subframe. C and B have no special meaning here, and they are only used to distinguish the access downlink subframe and the access uplink subframe.

The above scheme causes the network equipment to only use part of the subframes to send downlink signals to the signal forwarding equipment. For example, suppose that frame m includes 10 subframes, and m is a positive integer, where the uplink subframe and the relay uplink subframe are accessed. When the frame ratio is 1:1, the network device can only send signals in the downlink subframes corresponding to the 5 access uplink subframes, resulting in a scenario where the network device can only use half of the signal even in a scenario with good channel conditions. Sub-frames cause the network equipment to reduce the transmission rate of the terminal equipment subordinate to the signal forwarding equipment.

In order to solve the above technical problems, this application provides a processing method to increase the downlink transmission rate of the network equipment to its subordinate terminal equipment when there is the signal forwarding device described above in the communication system.

As shown in FIG. 6, it is a schematic flowchart of a processing method provided by an embodiment of this application.

As shown in Figure 6, a processing method may include the following steps:

601. The network device determines whether the first uplink subframe is an uplink access subframe.

The first uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the first downlink subframe, the HARQ information is sent to the network device through a signal forwarding device, and the uplink access The subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device.

The network equipment determines the relationship between the first downlink (DL) subframe and the first uplink (UL) subframe according to the set HARQ timing relationship of the hybrid automatic repeat request, for example, long term evolution (long term evolution) , LTE) system, for time division duplex (time division duplexing, TDD) and frequency division duplex (frequency division duplex, FDD) define different HARQ timing (in the embodiment of this application, HARQ timing is also called HARQ feedback Time sequence). For FDD LTE system, subframe n is a UL subframe, and the DL subframe corresponding to this subframe n is subframe n-4. That is to say, for FDD LTE system, the network device is in subframe n- 4 After sending a downlink signal, the terminal device can feed back HARQ in subframe n, and the specific terminal device sends ACK and NACK messages to the network device. For the TDD LTE system, it is possible to determine which DL subframes correspond to UL subframes under different TDD ratios according to the subframe ratio information table. For example, Table 1 provides a seed frame ratio information table:

Table 1: Subframe ratio information table

As shown in Table 1, including 7 subframe ratios, subframe 0 to subframe 9 represent UL subframes, and each UL subframe corresponds to a different number. For example, when the subframe ratio is 0, subframe 2 corresponds to The number is 6, assuming that the number k represents the number corresponding to each UL subframe, k is a positive integer, and when the number corresponding to subframe n is k, it means that the network device transmits in the nk subframe downlink, and the terminal device feeds back HARQ in subframe n . It should be noted that the network device determines the relationship between the first downlink (DL) subframe and the first uplink (UL) subframe according to the set HARQ timing relationship of the hybrid automatic repeat request. The point of the invention, the above description is to illustrate that when a network device sends a downlink signal to a terminal device, it can only be sent in a predetermined subframe, so that there will be hybrid automatic retransmission request (HARQ) feedback. limit.

After the network device determines the relationship between the first DL subframe and the first UL subframe according to the set HARQ timing relationship of the set hybrid automatic repeat request, the network device determines the relationship between the first DL subframe and the first UL subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe Pattern, determine which downlink subframes correspond to uplink subframes as uplink access subframes. For example, in the FDD LTE system, the network device sends a downlink signal to the terminal device in the downlink subframe 2, and the network device determines that the uplink subframe corresponding to the downlink subframe 2 is subframe 6, that is, determines that the terminal device transmits to the network in subframe 6. The device feeds back HARQ information, and the network device determines whether subframe 6 is an uplink access subframe according to the configured uplink access subframe pattern or the configured relay uplink subframe pattern, that is, determines whether the terminal device transmits the signal to the signal forwarding device in subframe 6 Whether the HARQ information sent can be received by the signal forwarding device. According to the description of the signal forwarding device above, the signal forwarding device can only receive the uplink signal sent by the terminal device in the preset uplink access subframe, and cannot access it in non-uplink. The subframe receives the uplink signal. If it is determined that the subframe 6 is an uplink subframe, the signal forwarding device can receive the HARQ information sent by the terminal device. If it is determined that the subframe 6 is not an uplink subframe, the signal forwarding device cannot receive the terminal. HARQ information sent by the device.

602. If the first uplink subframe is an uplink access subframe, the network device adopts the HARQ transmission mechanism in the first downlink subframe to receive an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device.

If the first uplink subframe is an uplink access subframe, when the network device sends a downlink signal to the terminal device through the signal forwarding device in the current first downlink subframe, the terminal device feeds back HARQ information in the corresponding uplink subframe, that is, the terminal The device sends the ACK message or NACK message in the corresponding uplink subframe, and the signal forwarding device forwards the ACK message or NACK message to the network device. The following is an example with reference to Figure 7. Assuming that the network device sends a downlink service to the terminal device in subframe n, correspondingly, the terminal device feeds back HARQ information in subframe n+4, and the signal forwarding device receives the HARQ in subframe n+4 Information, because under normal circumstances, when a signal forwarding device receives an uplink signal from a terminal device, it must perform digital processing on the uplink signal, and then forward the uplink signal to the network device, because there is a process of uplink signal reception and digital processing, Therefore, a certain time delay will occur. Assume that in Figure 7, the signal forwarding device forwards the HARQ information to the network device in the subframe n+4+q, and q is a positive integer. For the network device side, if the first uplink subframe is an uplink access subframe, the HARQ feedback transmission mechanism is adopted in the downlink subframe, and the network device suspends the HARQ process, waiting for the ACK message or NACK message sent by the terminal device .

603. If the first uplink subframe is not an uplink access subframe, the network device determines that the HARQ information corresponding to the first downlink subframe is an ACK message.

If the network device determines that the current downlink subframe sends a downlink traffic channel, and the corresponding HARQ information feedback subframe is not an uplink access subframe, the downlink subframe adopts a HARQ-independent transmission mechanism, that is, it does not wait for the terminal to feedback an ACK message or NACK message, the network device always considers the terminal to feed back an ACK message.

In a specific implementation, if the first uplink subframe is not an uplink access subframe, the network device adopts the automatic repeat request ARQ transmission mechanism of the radio link control RLC layer in the downlink subframe, that is, the network device passes the update High-level retransmission to ensure transmission and ensure that the terminal equipment receives the signal correctly.

It can be seen from the embodiment corresponding to FIG. 6 that, compared to the prior art, in a communication system with a signal forwarding device, the network device can only perform downlink transmission when the uplink subframe corresponding to the downlink subframe is an uplink access subframe. In the solution provided by this application, the network device can perform downlink transmission in all subframes to increase the transmission rate.

It can be seen from the embodiment corresponding to FIG. 6 that if the first uplink subframe is not an uplink access subframe, the network device determines that the hybrid automatic repeat request HARQ information corresponding to the first downlink subframe is an ACK message. It should be noted that, When the first uplink subframe is not an uplink subframe, the network device may also increase the transmission rate in other ways, for example, the network device sends the same information as the previous downlink subframe in the current downlink subframe. This will be described in detail below in conjunction with FIG. 7.

As shown in FIG. 8, it is a schematic flowchart of another processing method provided by an embodiment of this application.

As shown in Figure 8, a processing method may include the following steps:

801. The network device determines whether the second uplink subframe is an uplink access subframe.

The second uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the second downlink subframe, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe The frame is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. The first downlink subframe in the embodiment corresponding to FIG. 6 and the second downlink subframe in the embodiment corresponding to FIG. 8 are both any downlink subframe, so the network device determines whether the second uplink subframe is uplink access The subframe can be understood with reference to 601 in the embodiment corresponding to FIG. 6, and details are not repeated here.

802. If the second uplink subframe is an uplink access subframe, the network device adopts the HARQ transmission mechanism in the second downlink subframe to receive an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device.

The first downlink subframe in the embodiment corresponding to FIG. 6 and the second downlink subframe in the embodiment corresponding to FIG. 8 are both any downlink subframe. Therefore, in step 802, refer to 602 in the embodiment corresponding to FIG. 6 To understand, I won’t repeat it here.

803. If the second uplink subframe is not an uplink access subframe, the network device sends the same content as the third downlink subframe in the second downlink subframe, and the third downlink subframe is the N phases of the second downlink subframe. Adjacent subframe.

If the current downlink subframe sends a downlink traffic channel, and the corresponding HARQ information feedback subframe is not an uplink access subframe, the network device sends the same data as the third downlink subframe in the current downlink subframe, and the third downlink subframe is N adjacent subframes of the downlink subframe, N is a positive integer, for example, the network device sends the same data in the current downlink subframe as the previous subframe, or the network device sends the same data in the current downlink subframe as the previous multiple subframes Or the network device sends the same data as the next subframe in the current downlink subframe, or the network device sends the same data as multiple subsequent subframes in the current downlink subframe. The downlink subframe adopts the same HARQ ID as the third downlink subframe and the same new data indicator (NDI) as the third downlink subframe, so that the terminal device can use the same HARQ ID as the third downlink subframe. The data of the frames are merged.

It can be seen from the embodiment corresponding to FIG. 8 that if the second uplink subframe is not an uplink access subframe, the network device sends the same content as the third downlink subframe in the current downlink subframe. In this solution, if the third downlink subframe is The content carried in the subframe is not correctly received by the terminal device. By sending the same content as the third downlink subframe in the current downlink subframe, the terminal device can receive the content again, which improves the success rate of receiving information by the terminal device, thereby reducing The number of times that the network device retransmits information to the terminal device increases the downlink transmission rate of the network device to the terminal device subordinate to the signal forwarding device.

It should be noted that the embodiment corresponding to FIG. 6 and the embodiment corresponding to FIG. 8 can be implemented in combination. For example, suppose that frame P includes 10 downlink subframes, and any one of the 10 downlink subframes can be regarded as the first downlink subframe in the embodiment corresponding to FIG. 6, or as the figure 8 corresponds to the second downlink subframe in the embodiment. When the network device determines that the uplink subframe corresponding to any one of the 10 downlink subframes is not an uplink access subframe, the network device can choose to execute the corresponding Step 603 in the embodiment of FIG. 8 may also choose to execute step 803 in the embodiment corresponding to FIG. 8.

It can be understood that, in order to implement the above-mentioned functions, the above-mentioned network device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that in combination with the modules and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Described in terms of hardware structure, the network device in Figures 6 to 8 can be implemented by one physical device, or can be implemented by multiple physical devices, or can be a logical function module in one physical device. This is not specifically limited.

For example, the network device can be implemented by the communication device in FIG. 9. FIG. 9 shows a schematic diagram of the hardware structure of a communication device provided by an embodiment of the application. It includes: a communication interface 901 and a processor 902, and may also include a memory 903.

The communication interface 901 can use any device such as a transceiver for communicating with other devices or a communication network.

The processor 902 includes but is not limited to a central processing unit (CPU), a network processor (NP), an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD) one or more. The above-mentioned PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof. The processor 902 is responsible for the communication line 904 and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 903 may be used to store data used by the processor 902 when performing operations.

The memory 903 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions The dynamic storage device can also be electrically erasable programmable read-only memory (electrically programmable read-only memory, EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, Optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can Any other medium accessed by the computer, but not limited to this. The memory may exist independently, and is connected to the processor 902 through a communication line 904. The memory 903 may also be integrated with the processor 902. If the memory 903 and the processor 902 are independent devices, the memory 903 and the processor 902 are connected, for example, the memory 903 and the processor 902 can communicate through a communication line. The communication interface 901 and the processor 902 may communicate through a communication line, and the communication interface 901 may also be directly connected to the processor 902.

The communication line 904 may include any number of interconnected buses and bridges, and the communication line 904 links various circuits including one or more processors 902 represented by the processor 902 and a memory represented by the memory 903 together. The communication line 904 can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, this application will not further describe them.

In a specific implementation manner, the network device may include:

The memory is used to store computer-readable instructions.

And a processor coupled with the memory, the processor is configured to perform the following operations: determine whether the first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit the hybrid corresponding to the first downlink subframe The automatic repeat request HARQ information, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. If the first uplink subframe is an uplink access subframe, the HARQ transmission mechanism is adopted in the first downlink subframe. It may also include a communication interface, which is coupled with the processor, and is configured to receive an acknowledgement ACK message or a negative acknowledgement NACK message sent by the terminal device if the first uplink subframe is an uplink access subframe. The processor is further configured to determine that the HARQ information corresponding to the first downlink subframe is an ACK message if the first uplink subframe is not an uplink access subframe.

In a specific implementation manner, the processor is further configured to use the automatic repeat request ARQ transmission mechanism of the radio link control RLC layer in the first downlink subframe when the first uplink subframe is not an uplink access subframe.

In a specific implementation manner, the processor is specifically configured to: determine, according to the set HARQ timing relationship, that the first downlink subframe corresponds to the first uplink subframe. Determine whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

In a specific embodiment, the processor is further configured to determine whether the second uplink subframe is an uplink access subframe, and the second uplink subframe is configured for the terminal device to transmit the hybrid automatic reconfiguration corresponding to the second downlink subframe. The HARQ information is requested, the HARQ information is sent to the network device through the signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device. The communication interface is also used to send the same information as the third downlink subframe in the second downlink subframe if the second uplink subframe is not an uplink access subframe, and the third downlink subframe is N of the second downlink subframe. Adjacent subframes, N is a positive integer.

In a specific implementation manner, the processor is specifically configured to determine that the second downlink subframe corresponds to the second uplink subframe according to the set HARQ timing relationship. Determine whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern.

In the embodiments of the present application, the communication interface can be regarded as the transceiver unit of the network device, the processor with processing function can be regarded as the processing unit of the network device, and the memory can be regarded as the storage unit of the network device. As shown in FIG. 10, the network device may include a transceiving unit 1010, a processing unit 1020, and a storage unit 1030. The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 1010 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1010 as the sending unit, that is, the transceiver unit 1010 includes a receiving unit and a sending unit. The transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

In a specific embodiment, the transceiving unit 1010 is used to perform the transceiving operations on the network device side in steps 601 to 603 in FIG. 6, and/or the transceiving unit 1010 is also used to perform the network device side in the embodiment corresponding to FIG. The other sending and receiving steps. The processing unit 1020 is configured to perform processing operations on the network device side in steps 601 to 603 in FIG. 6, and/or the processing unit 1020 is also configured to perform other processing steps on the network device side in the embodiment corresponding to FIG. 6.

In a specific embodiment, the transceiving unit 1010 is used to perform the transceiving operations on the network device side in steps 801 to 803 in FIG. 8, and/or the transceiving unit 1010 is also used to perform the network device side in the embodiment corresponding to FIG. The other sending and receiving steps. The processing unit 1020 is configured to perform processing operations on the network device side in steps 801 to 803 in FIG. 8, and/or the processing unit 1020 is also configured to perform other processing steps on the network device side in the embodiment corresponding to FIG. 8.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may 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 instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, magnetic disk or CD, etc.

The processing methods, network devices, and storage media provided by the embodiments of the application are described in detail above. Specific examples are used in this article to illustrate the principles and implementations of the application. The descriptions of the above embodiments are only used to help understand the present application. The method of application and its core idea; meanwhile, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood It is a restriction on this application.

Claims (11)

A processing method, characterized in that it comprises: The network device determines whether the first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit hybrid automatic repeat request HARQ information corresponding to the first downlink subframe, the HARQ information Sending to the network device through a signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device; If the first uplink subframe is an uplink access subframe, the network device adopts the HARQ transmission mechanism in the first downlink subframe, and receives an acknowledgement ACK message or a negative acknowledgement NACK sent by the terminal device news; If the first uplink subframe is not an uplink access subframe, the network device determines that the HARQ information corresponding to the first downlink subframe is an ACK message. The processing method according to claim 1, wherein if the first uplink subframe is not an uplink access subframe, the method further comprises: The network device adopts the automatic repeat request ARQ transmission mechanism of the radio link control RLC layer in the first downlink subframe. The processing method according to claim 1 or 2, wherein the determining by the network device whether the first uplink subframe is an uplink access subframe comprises: Determining, by the network device, that the first downlink subframe corresponds to the first uplink subframe according to the set HARQ timing relationship; The network device determines whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern. The processing method according to any one of claims 1 to 3, further comprising: The network device determines whether the second uplink subframe is an uplink access subframe, and the second uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the second downlink subframe, and the HARQ information is passed Sending the signal forwarding device to the network device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device; If the second uplink subframe is not an uplink access subframe, the network device sends the same information as the third downlink subframe in the second downlink subframe, and the third downlink subframe is the first N adjacent subframes of two downlink subframes, where N is a positive integer. The processing method according to claim 4, wherein the determining by the network device whether the second uplink subframe is an uplink access subframe comprises: Determining, by the network device, that the second downlink subframe corresponds to the second uplink subframe according to the set HARQ timing relationship; The network device determines whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern. A network device, characterized by comprising: a memory for storing computer-readable instructions; And a processor coupled with the memory, the processor is configured to perform the following operations: It is determined whether the first uplink subframe is an uplink access subframe, and the first uplink subframe is configured for the terminal device to transmit the HARQ information of the hybrid automatic repeat request corresponding to the first downlink subframe, and the HARQ information passes the signal The forwarding device sends to the network device, the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device; If the first uplink subframe is an uplink access subframe, adopt the HARQ transmission mechanism in the first downlink subframe; It also includes a communication interface, where the communication interface is coupled with the processor, and is configured to receive an acknowledgement ACK message or a negative acknowledgement NACK sent by the terminal device if the first uplink subframe is an uplink access subframe news; The processor is further configured to determine that the HARQ information corresponding to the first downlink subframe is an ACK message if the first uplink subframe is not an uplink access subframe. The network device according to claim 6, wherein the processor is further configured to use a radio link in the first downlink subframe when the first uplink subframe is not an uplink access subframe Controls the automatic repeat request ARQ transmission mechanism of the RLC layer. The network device according to claim 6 or 7, wherein the processor is specifically configured to: Determining that the first downlink subframe corresponds to the first uplink subframe according to the set HARQ timing relationship; Determine whether the first uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern. The network device according to any one of claims 6 to 8, wherein: The processor is further configured to determine whether the second uplink subframe is an uplink access subframe, and the second uplink subframe is configured for the terminal device to transmit hybrid automatic repeat request HARQ information corresponding to the second downlink subframe The HARQ information is sent to the network device through a signal forwarding device, and the uplink access subframe is configured for the signal forwarding device to receive the HARQ information sent by the terminal device; The communication interface is further configured to send the same information as the third downlink subframe in the second downlink subframe if the second uplink subframe is not an uplink access subframe, and the third downlink subframe Are N adjacent subframes of the second downlink subframe, and the N is a positive integer. The network device according to claim 9, wherein the processor is specifically configured to: Determining, according to the set HARQ timing relationship, that the second downlink subframe corresponds to the second uplink subframe; Determine whether the second uplink subframe is an uplink access subframe according to the configured uplink access subframe pattern or according to the configured relay uplink subframe pattern. A computer-readable storage medium, characterized in that, when the instructions are executed on a computer device, the computer device is caused to execute the method according to any one of claims 1 to 10.

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