TWI678116B - Method, transmitting node and receiving node for feedback control of sidelink communication - Google Patents

Abstract

A feedback control method for a boundary link communication, a transmitting node and a receiving node. In this method, the base station generates target information for transmitting feedback information for data transmission between the transmitting node and the receiving node; at least one of the transmitting node and the receiving node receives the target information transmitted by the base station, or from another node Receiving target information transmitted by the base station to another node; and in response to the transmitting node transmitting data to the receiving node, the receiving node transmits feedback information according to the target information, and the transmitting node obtains feedback information according to the target information.

Description

Feedback control method for boundary link communication, transmitting node and receiving node

The present invention relates to a technique for giving feedback in boundary link communication.

Vehicle to Everything (V2X) is a vehicle data transmission technology based on the 3rd Generation Partnership Project (3GPP) communication protocol, which includes vehicle to vehicle (V2V) , Vehicle to Pedestrian (V2P) and Vehicle to Infrastructure (V2I) communication, etc. This technology mainly uses vehicle intelligent terminal equipment to realize vehicle data transmission technology.

Currently supporting backhaul transmission in the boundary link feedback transmission has been recognized as a hypothesis performed on the sidelink ID (SID) for further enhanced device-to-device communication. However, there is no clear regulation in the prior art. Fan, how to perform feedback transmission in the boundary link feedback transmission when it is necessary to detect whether the required data is received or the quality of the received data.

Therefore, how to provide a feedback transmission that is compatible with the further enhanced device of the 3rd Generation Partnership Project communication protocol is one of the topics of interest to those skilled in the art.

The present invention provides a feedback control method and system for boundary link communication, which uses the resource allocation or identification information of the transmission node in the boundary link to perform feedback between the transmitting node and the receiving node.

The invention provides a feedback control method for boundary link communication, which is applicable to a boundary link communication system including a base station, a transmitting node, and a receiving node. The method includes the following steps: The base station generates and transmits data for transmitting between the transmitting node and the receiving node. Target information of feedback information; at least one of the transmitting node and the receiving node receives the target information transmitted by the base station, or receives from another node the target information transmitted by the base station to another node; and transmits data to the receiving node in response to the transmitting node Node, the receiving node sends feedback information according to the target information, and the sending node obtains feedback information according to the target information.

The invention provides a transmission node of a boundary link communication system, which includes a communication module, a storage device and a processor. The communication module uses boundary link communication to communicate with the base station and receiving nodes of the boundary link communication system; the storage device stores multiple instructions; the processor is coupled to the communication module and the storage device, and is used to load and execute the storage device. The instructions stored in the center are: using a communication module to transmit data to a receiving node; and using a communication module to receive feedback information transmitted by the receiving node in response to receiving the data and based on the target information, where the target information is Information generated by data transmission between receiving nodes to send feedback information.

The invention provides a receiving node of a boundary link communication system, which includes a communication module, a storage device and a processor. The communication module uses boundary link communication to communicate with the base station and transmission nodes of the boundary link communication system; the storage device stores multiple instructions; the processor is coupled to the communication module and the storage device, and is used to load and execute the instructions stored in the storage device To: use the communication module to receive the data transmitted by the transmitting node; and in response to the received data, use the communication module to transmit the feedback information according to the target information, where the target information is generated by the base station for the data transmission between the transmitting node and the receiving node Information for sending feedback.

The invention provides a feedback control method for boundary link communication, which is applicable to a boundary link communication system including a base station, a transmitting node, and a receiving node. The method includes the following steps: The transmitting node generates feedback for transmitting data to and from the receiving node. The target information of the information; the transmitting node transmits the data and the target information to the receiving node; the receiving node transmits the feedback information according to the target information in response to the received data; and the transmitting node obtains the feedback information according to the target information.

The invention provides a transmission node of a boundary link communication system, which includes a communication module, a storage device and a processor. The communication module uses boundary link communication to communicate with the receiving nodes of the boundary link communication system; the storage device stores multiple instructions; the processor is coupled to the communication module and the storage device, and is used to load and execute the storage in the storage device. The stored instructions are: generating target information for transmitting feedback information for data transmission with the receiving node; transmitting data and target information to the receiving node using a communication module; and obtaining the receiving node from the receiving node using the communication module according to the target information Feedback information sent in response to the data received based on the target information.

The invention provides a receiving node of a boundary link communication system, which includes a communication module, a storage device and a processor. The communication module uses boundary link communication to communicate with the base station and transmission nodes of the boundary link communication system; the storage device stores multiple instructions; the processor is coupled to the communication module and the storage device, and is used to load and execute the instructions stored in the storage device To: use a communication module to receive data and target information transmitted by a transmitting node, where the target information is information used to transmit feedback information generated by the transmitting node for data transmission between the receiving node; and in response to receiving the data, Use the communication module to send feedback information based on the target information.

Based on the above, the feedback control method of the boundary link communication provided by the present invention has standardized how the transmitting node should obtain feedback information from the receiving node. In this way, the transmitting node can complete the boundary connection feedback with the receiving node. In addition, the present invention may choose to transmit feedback information in a physical boundary link control channel. This can achieve the effect of saving the resources of the physical boundary link shared channel, and the use of the physical boundary link control channel can further increase the efficiency of obtaining feedback information.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

100‧‧‧ Border Link Communication System

110‧‧‧ base station

120‧‧‧ receiving node

130‧‧‧Transfer Node

1201, 1301‧‧‧ communication module

1203, 1303‧‧‧ processors

1205, 1305‧‧‧‧ storage devices

S301 ~ S305, S401 ~ S407, S501 ~ S507, S601 ~ S607, S701 ~ S709, S801 ~ S809, S901 ~ S911, S1001 ~ S1007, S1101 ~ S1107, S1201 ~ S1207‧‧‧Boundary link communication method

FIG. 1 is a schematic diagram of a boundary link communication system according to an embodiment of the present invention.

2A and 2B are block diagrams of a receiving node and a transmitting node according to an embodiment of the present invention.

FIG. 3 is a flowchart of a feedback control method for boundary link communication according to an embodiment of the present invention.

FIG. 4A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 4B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 5A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

5B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 6A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

6B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 7A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 7B is a diagram illustrating a boundary link communication response according to another embodiment of the present invention. Schematic diagram of the transmission of the feedback control system.

FIG. 8A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 8B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 9A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 9B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 10 is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 11A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 11B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 12A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention.

FIG. 12B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

FIG. 1 is a boundary link communication system according to an embodiment of the present invention. Schematic. Referring to FIG. 1, the boundary link communication system 100 includes a base station 110, a receiving node 120 and a transmitting node 130. The base station 110 may be an evolved node B (eNB) or the like. Generally speaking, the boundary link communication system 100 may have multiple situations. The first situation is that the receiving node 120 and the transmitting node 130 are both in-coverage within the network coverage of the base station 110. The second case is a partial-coverage where one of the receiving node 120 and the transmitting node 130 is located within the network coverage of the base station 110, and the third case is where the receiving node 120 and the transmitting node 130 are both located Out-of-coverage outside the network coverage of the base station 110.

On the other hand, the sidelink communication between the receiving node 120 and the transmitting node 130 may be performed through the base station 110 or not. Further, the sidelink transmission between the receiving node 120 and the transmitting node 130 may adopt the transmission mode 1/3 (mode 1/3) supported by the base station 110 or the transmission mode 2 without the base station 110 support 2 / 4 (mode 2/4). In other words, the base station 110 may select an available resource block (RB) from the physical side link shared channel (PSSCH) in the resource pool to the boundary between the receiving node 120 and the transmitting node 130. Link transmission, or the transmission node 130 directly selects available resource blocks from the physical boundary connection shared channel in the resource pool to form a boundary connection transmission between the receiving node 120 and the transmission node 130.

The embodiment of the present invention is also between the receiving node 120 and the transmitting node 130. The transmission mode 1 or transmission mode 2 is used to implement sidelink feedback. In other words, the base station 110 may select available resource blocks from the physical side link control channel (PSCCH) in the resource pool to provide the boundary link feedback between the receiving node 120 and the transmitting node 130, or directly by the receiving node 130 Available resource blocks are selected from the physical boundary link shared channels in the resource pool to form a boundary link feedback between the receiving node 120 and the transmitting node 130.

In an embodiment, the base station 110 may first generate target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. At least one of the transmitting node 130 and the receiving node 120 may receive the target information transmitted by the base station 110 or receive the target information transmitted by the base station 110 to another node from another node. In response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 may transmit the feedback information according to the target information, and the transmitting node 130 may obtain the feedback information according to the target information. In another embodiment, the transmitting node 130 may first generate target information for transmitting feedback information for data transmission with the receiving node 120. The transmitting node 130 may transmit data and target information to the receiving node 120. In response to receiving the data, the receiving node 120 transmits feedback information according to the target information. The transmitting node 130 may obtain feedback information according to the target information.

Among them, the feedback information may be ACK / NACK information, Modulation and Coding Scheme (MCS) information, repetition information, and boundary link received signal strength indication (Sidelink Received Signal Strength Indicator (SL-RSSI) information, Borderlink Reference Signal Receiving Power (SL-RSRP) information, Borderlink Reference Signal Receiving Quality (RSRQ) information, Borderlink transmitting end / Receiver identification information (Sidelink TX / RX ID) and configuration information of feedback resource pool (feedback resource pool configure information), etc., but it is not limited to this.

With the above-mentioned boundary link communication system 100, the present invention can perform boundary link feedback according to the generated target information, so that the transmitting node 130 can obtain feedback information according to the target information, and then let the transmitting node 130 know that the receiving node 120 targets the transmitting node 130 The reception status of the transmitted data.

2A and 2B are block diagrams of a receiving node and a transmitting node according to an embodiment of the present invention. Referring to FIG. 2A, the receiving node 120 includes a communication module 1201, a processor 1203, and a storage device 1205. The communication module 1201 can communicate with the base station 110 and the transmission node 130 of the boundary link communication system 100 by using boundary link communication. The storage device 1205 can store a plurality of instructions. The processor 1203 may be coupled to the communication module 1201 and the storage device 1205, and configured to load and execute instructions stored in the storage device 1205. Referring to FIG. 2B, the transmission node 130 includes a communication module 1301, a processor 1303, and a storage device 1305. The communication module 1301 can communicate with the base station 110 and the receiving node 120 of the boundary link communication system 100 by using boundary link communication. The storage device 1305 can store a plurality of instructions. The processor 1303 may be coupled to the communication module 1301 and the storage device 1305, and is configured to load and execute instructions stored in the storage device 1305.

In addition, the receiving node 120 and the transmitting node 130 may be a driving computer supporting the Internet of Vehicles technology, or a server, a personal computer (PC), a tablet computer, a mobile phone, a personal digital assistant (PDA), etc. Computing device. The communication modules 1201 and 1301 may be dedicated short-range communication (DSRC) technologies supporting long term evolution (LTE) (ie, 4G) with a frequency band of 2 GHz and / or a frequency band of 5.9 GHz. Communication device. The storage devices 1205 and 1305 can be any type of fixed or removable random access memory (RAM), read-only memory (ROM), and flash memory. ) Or similar elements or a combination of the above. The processors 1203 and 1303 may be a central processing unit (CPU), or other programmable general purpose or special purpose microprocessor (microprocessor), digital signal processor (DSP), Programmable controller, application specific integrated circuits (ASIC), programmable logic device (PLD) or other similar devices or a combination of these devices.

FIG. 3 is a flowchart of a feedback control method for boundary link communication according to an embodiment of the present invention. This embodiment is applicable to the above-mentioned coverage and partial coverage. Referring to FIG. 3, in step S301, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. In step S303, at least one of the transmitting node 130 and the receiving node 120 receives the target information transmitted by the base station 110, or receives the target information from another node. Target information transmitted by the base station to another node. In step S305, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 transmits feedback information according to the target information, and the transmitting node 130 obtains feedback information according to the target information. Wherein, for the above-mentioned various situations in which the transmitting node 130 and the receiving node 120 receive the target information and transmit the feedback information accordingly, the present invention provides detailed descriptions of the embodiments, which are described in detail below.

FIG. 4A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 4B at the same time, wherein FIG. 4B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S401, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when the transmitting node 130 and the receiving node 120 are both within the network coverage of the base station 110, the base station 110 may store the boundary link identification information of the transmitting node 130 in advance. In order to perform boundary link feedback between the transmitting node 130 and the receiving node 120, the base station 110 generates target information and adds the identification information of the transmitting node 130 to the target information.

In step S403, the receiving node 120 receives the target information transmitted by the base station 110, and the target information includes identification information of the transmitting node 130. Specifically, the base station 110 may transmit the target information having the identification information of the transmitting node 130 to the receiving node 120 using a physical boundary connection control channel. The base station 110 may directly select a resource block from the physical boundary connection control channel, so as to use the selected resource block to The target information is transmitted to the receiving node 120.

In step S405, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 transmits feedback information according to the identification information. Specifically, the transmitting node 130 may transmit data to the receiving node 120 by using the physical boundary link shared channel, and the receiving node 120 generates feedback information according to the received data and identification information to transmit the feedback information by using the physical boundary link control channel. Among them, the transmitting node 130 can use the base station 110 to connect the resource blocks selected in the shared channel from the physical boundary to transmit data to the receiving node 120. Alternatively, the transmitting node 130 directly selects a resource block from the physical boundary link shared channel to transmit data to the receiving node 120 by using the selected data block. The receiving node 120 may also use the base station 110 to connect the resource blocks selected in the shared channel from the physical boundary to transmit data to the transmitting node 130. Alternatively, the receiving node 120 directly selects a resource block from the physical boundary link shared channel to transmit data to the transmitting node 130 by using the selected data block.

In step S407, the transmitting node 130 interprets the identification information to obtain feedback information. Specifically, the transmitting node 130 reads a resource block in the physical boundary connection control channel to determine whether there is a resource block having the identification information of the transmitting node 130. Until it is determined that a resource block having identification information of the transmitting node 130 exists, the transmitting node 130 obtains feedback information from the resource block.

With the above method, the transmitting node 130 and the receiving node 120 located in the network coverage area of the base station 110 can use the base station 110 to inform the receiving node 120 of the identification information of the transmitting node 130, and the receiving node 120 can directly identify the transmitting node 130. The information is set as destination ID to return the information Control channels are transmitted through physical boundary links. The transmitting node 130 can directly find the data block with its own identification information from the physical boundary connection control channel, so as to obtain the required feedback information from the data block.

FIG. 5A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 5B at the same time, wherein FIG. 5B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S501, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when the transmitting node 130 and the receiving node 120 are both within the network coverage of the base station 110, the base station 110 generates target information and selects a resource block for transmitting feedback information from the physical boundary connection control channel. The base station 110 generates configuration information according to the selected resource block, and adds the configuration information to the target information.

In step S503, the transmitting node 130 and the receiving node 120 receive target information transmitted by the base station 110, and the target information includes configuration information of resources configured by the base station 110 to transmit feedback information. Specifically, the base station 110 may use the physical boundary connection control channel to transmit the target information with the configuration information to the transmitting node 130 and the receiving node 120. Alternatively, the base station 110 may directly select a resource block from the physical boundary link shared channel to transmit the target information to the transmitting node 130 and the receiving node 120 by using the selected resource block.

In step S505, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 uses the resources to transmit the feedback information according to the configuration information. specific In other words, the transmitting node 130 may use the physical boundary link to share the channel to transmit data to the receiving node 120. The receiving node 120 generates feedback information according to the received data to use the physical boundary link to control the resource block transmission in the channel indicated by the configuration information The feedback information, in which the receiving node 120 uses the resource block of the physical boundary link control channel to transmit the link information of the feedback information, and uses the physical boundary link control channel to send the feedback information. Among them, the transmitting node 130 can use the base station 110 to connect the resource blocks selected in the shared channel from the physical boundary to transmit data to the receiving node 120. Alternatively, the transmitting node 130 directly selects a resource block from the physical boundary link shared channel to transmit data to the receiving node 120 by using the selected data block. In step S507, the transmitting node 130 receives the feedback information using the resources according to the configuration information. Specifically, the transmitting node 130 may receive feedback information from a resource block in the physical boundary link control channel indicated by the configuration information, wherein the transmitting node 130 reads the control information via the physical boundary link according to the configuration information recorded in the target information. The link information transmitted by the resource block of the channel is obtained from the resource block of the physical boundary link control channel to obtain the feedback information corresponding to the link information.

With the above method, the transmitting node 130 and the receiving node 120 located in the network coverage area of the base station 110 can directly use the base station 110 to allocate resources required for the boundary link feedback, and the transmitting node 130 and the receiving node 120 can directly use the allocated resources. Resources complete boundary link feedback.

FIG. 6A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 6B at the same time, wherein FIG. 6B is a transmission of the feedback control system of the boundary link communication according to another embodiment of the present invention. schematic diagram.

In step S601, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when only the transmitting node 130 is located within the network coverage of the base station 110, the base station 110 generates target information and selects a resource block for transmitting feedback information from the physical boundary connection control channel and connects from the physical boundary The resource block selected in the shared channel to transfer data. The base station 110 generates configuration information according to the resource block for transmitting feedback information and the resource block for transmitting data, and adds the configuration information to the target information.

In step S603, the transmitting node 130 receives the target information transmitted by the base station 110, and the target information includes resource configuration information configured by the base station to transmit data and return information. Specifically, the base station 110 may transmit the target information with the configuration information to the transmitting node 130 using a physical boundary connection control channel. The base station 110 may directly select a resource block from the physical boundary connection control channel to transmit the target information to the transmitting node 130 by using the selected resource block.

In step S605, the transmitting node 130 uses the resources according to the configuration information to transmit data and configuration information to the receiving node 120. Specifically, the transmitting node 130 may use the physical boundary indicated by the configuration information to connect the resource blocks in the shared channel to transmit data and the configuration information to the receiving node 120.

In step S607, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 uses the resources according to the configuration information to transmit the feedback information to the transmitting node 130. Specifically, the receiving node 120 generates data according to the received data. Generate feedback information to use the physical boundary link control channel resource block indicated by the configuration information to transmit the feedback information, wherein the receiving node 120 uses the physical boundary link control channel resource block to transmit the feedback information link information and use the physical boundary link The control channel transmits feedback information; further, the transmitting node 130 receives the feedback information from the physical block connected to the resource block in the control channel indicated by the configuration information. The transmission node 130 reads the physical information according to the configuration information recorded in the target information. The link information transmitted by the resource block of the boundary link control channel is used to obtain feedback information corresponding to the link information from the resource block of the physical boundary link control channel.

With the above method, the base station 110 can be used to directly allocate resources required for border link transmission and border link feedback. The base station 110 may inform the transmitting node 130 located in the network coverage of the base station 110 of the resources required for the boundary link transmission and the boundary link feedback, and the transmitting node 130 notifies the network coverage of the base station 110 of the resources required for the boundary link feedback. Receive node 120 out of range. Thereby, the transmitting node 130 and the receiving node 120 can complete the boundary link transmission and the boundary link feedback according to the resources required for the boundary link transmission and the boundary link feedback, respectively.

FIG. 7A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 7B at the same time, wherein FIG. 7B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S701, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when only the transmitting node 130 is located within the network coverage of the base station 110, the basic The station 110 generates target information and selects a resource block for transmitting data from a physical boundary link shared channel. The base station 110 generates configuration information according to the resource block used to transmit data, and adds the configuration information to the target information.

In step S703, the transmitting node 130 receives target information transmitted by the base station 110, and the target information includes configuration information of resources configured by the base station 110 to transmit data. Specifically, the base station 110 may transmit the target information with the configuration information to the transmitting node 130 using a physical boundary connection control channel. The base station 110 may directly select a resource block from the physical boundary connection control channel to transmit the target information to the transmitting node 130 by using the selected resource block.

In step S705, the transmitting node 130 uses the resources according to the configuration information to transmit the data and its own identification information to the receiving node 120. Specifically, the transmitting node 130 may use the resource block in the physical boundary link shared channel indicated by the configuration information to transmit the data and its own boundary link identification information to the receiving node 120.

In step S707, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 transmits feedback information according to the identification information. Specifically, the receiving node 120 generates feedback information according to the received data, adds the identification information to the feedback information, and selects resource blocks in the physical boundary link control channel to transmit the feedback information (that is, adopts transmission mode 2). The receiving node 120 uses the physical boundary link control channel resource block to transmit the link information of the feedback information, and uses the physical boundary link control channel to send the feedback information. In step S709, the transmitting node 130 interprets the identification information to obtain feedback information. Specifically, the transmitting node 130 reads a resource block in the physical boundary connection control channel to determine whether there is a transmitting node 130 resource block for identifying information. Until it is determined that there is a resource block having the identification information of the transmitting node 130, the transmitting node 130 obtains feedback information from the resource block, wherein the transmitting node 130 reads the connection via the physical boundary according to the configuration information recorded in the target information. The link information transmitted by the resource block of the control channel is obtained by linking the resource block of the control channel from the physical boundary with the feedback information corresponding to the link information.

With the above method, the base station 110 can be used to directly allocate resources required for boundary link transmission. The base station 110 may inform the transmitting node 130 located within the network coverage of the base station 110 of the resources required for the boundary link transmission, and the transmitting node 130 facilitates using the resources required for the boundary link transmission to notify the network located at the base station 110 of its own identification information. The receiving node 120 is out of coverage. Thereby, the receiving node 120 can directly set the identification information of the transmitting node 130 as the target identification information, so as to transmit the feedback information to the physical boundary link control channel. The transmitting node 130 can directly find the data block with its own identification information from the physical boundary connection control channel, so as to obtain the required feedback information from the data block.

FIG. 8A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 8B at the same time, wherein FIG. 8B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S801, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when only the receiving node 120 is located within the network coverage of the base station 110, the base station 110 generates target information and selects it from the physical boundary connection control channel for transmission. A resource block for returning information, and a resource block selected from a physical boundary link shared channel for transmitting data. The base station 110 generates configuration information according to the resource block for transmitting feedback information and the resource block for transmitting data, and adds the configuration information to the target information.

In step S803, the receiving node 120 receives target information transmitted by the base station 110, and the target information includes resource configuration information configured by the base station 110 to transmit data and return information. Specifically, the base station 110 may use the physical boundary connection control channel to transmit the target information with the configuration information to the receiving node 120. The base station 110 may directly select a resource block from the physical boundary connection control channel to transmit the target information to the receiving node 120 by using the selected resource block.

In step S805, the receiving node 120 relays the configuration information to the transmitting node 130. Specifically, the receiving node 120 may use the resource block in the physical boundary connection control channel indicated by the configuration information to relay the configuration information to the transmitting node 130.

In step S807, the transmitting node 130 transmits the data to the receiving node 120 using the resources according to the configuration information. Specifically, the transmitting node 130 may transmit the data to the receiving node 120 using the physical boundary link resource block in the shared channel indicated by the configuration information. In step S809, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 uses the resources according to the configuration information to transmit the feedback information to the transmitting node 130. Specifically, the receiving node 120 generates feedback information according to the received data, so as to transmit the feedback information by using the physical boundary link control channel indicated by the configuration information. The receiving node 120 uses the physical boundary link control The resource block of the control channel transmits the link information of the feedback information, and uses the physical boundary link control channel to transmit the feedback information; and then the transmitting node 130 receives the feedback information from the resource block in the physical boundary link control channel indicated by the configuration information. The node 130 reads the link information transmitted through the resource block of the physical boundary link control channel according to the configuration information recorded in the target information, and obtains feedback information corresponding to the link information from the resource block of the physical border link control channel.

With the above method, the base station 110 can be used to directly allocate resources required for border link transmission and border link feedback. The base station 110 may inform the receiving node 120 located within the network coverage of the base station 110 of the resources required for the boundary link transmission and the boundary link feedback, and the receiving node 120 notifies the network coverage of the base station 110 of the resources required for the boundary link transmission. Transit node 130 out of range. Thereby, the transmitting node 130 and the receiving node 120 can complete the boundary link transmission and the boundary link feedback according to the resources required for the boundary link transmission and the boundary link feedback, respectively.

FIG. 9A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 9B at the same time, wherein FIG. 9B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S901, the base station 110 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when only the receiving node 120 is located within the network coverage of the base station 110, the base station 110 generates target information and selects a resource block for transmitting data from the physical boundary link shared channel. The base station 110 generates allocations based on the resource blocks used to transmit data. Setting information, and adding the configuration information and transmission mode to the target information.

In step S903, the receiving node 120 receives target information transmitted by the base station 110, and the target information includes transmission mode and resource configuration information configured by the base station 110 to transmit data. Specifically, the base station 110 may transmit the target information having the configuration information and the transmission mode to the transmitting node 130 using a physical boundary connection control channel. The base station 110 may directly select a resource block from the physical boundary connection control channel to transmit the target information to the receiving node 120 by using the selected resource block.

In step S905, the receiving node 120 relays the configuration information to the transmitting node 130. Specifically, the receiving node 120 relays the configuration information to the transmitting node 130 using a physical boundary connection control channel. The receiving node 120 may use the resource block selected by the base station 110 from the physical boundary to connect the shared channel to transmit the data to the transmitting node 130. Alternatively, the receiving node 120 directly selects a resource block from the physical boundary link shared channel to transmit the data to the transmitting node 130 by using the selected data block.

In step S907, the transmitting node 130 transmits the data and its own identification information to the receiving node 120 using the transmission mode and resources according to the configuration information. Specifically, the transmitting node 130 may determine which transmission mode the boundary link feedback adopts according to the transmission mode, and use the indicated transmission mode to use the resource block in the physical boundary link shared channel indicated by the configuration information to transfer data and itself. The identification information is transmitted to the receiving node 120.

For example, when the transmission mode is transmission mode 1, the transmitting node 130 may use the physical boundary indicated by the configuration information to connect the resource blocks in the shared channel to transmit the data and its own identification information to the receiving node 120. And when the transmission mode is transmission In mode 2, the method described below with reference to FIGS. 11A and 11B is used, which will be described later.

In step S909, in response to the transmitting node 130 transmitting data to the receiving node 120, the receiving node 120 transmits feedback information according to the identification information. Specifically, the receiving node 120 may generate feedback information according to the received data and identification information to transmit the feedback information by using a physical boundary link control channel, wherein the receiving node 120 uses a resource block of the physical boundary link control channel to transmit a link of the feedback information Information, and use physical boundary link control channels to send feedback information. Similarly, the receiving node 120 may also use the base station 110 to connect the resource blocks selected in the shared channel from the physical boundary to transmit feedback information. Alternatively, the receiving node 120 directly selects a resource block from the physical boundary link shared channel to transmit the feedback information by using the selected data block.

In step S911, the transmitting node 130 interprets the identification information to obtain feedback information. Specifically, the transmitting node 130 reads a resource block in the physical boundary connection control channel to determine whether there is a resource block having the identification information of the transmitting node 130. Until it is determined that there is a resource block having the identification information of the transmitting node 130, the transmitting node 130 obtains feedback information from the resource block, wherein the transmitting node 130 reads the connection via the physical boundary according to the configuration information recorded in the target information. The link information transmitted by the resource block of the control channel is obtained by linking the resource block of the control channel from the physical boundary with the feedback information corresponding to the link information.

By the above method, the receiving node 120 located in the network coverage area of the base station 110 can notify the transmitting node 130 of the transmission mode adopted by the boundary link transmission in advance, and the transmitting node 130 uses the transmission mode to notify its own identification information. The receiving node 120, and the receiving node 120 can directly transmit the identification information of the transmitting node 130 Set as target identification information to send feedback information to the physical boundary link control channel. The transmitting node 130 can directly find the data block with its own identification information from the physical boundary connection control channel, so as to obtain the required feedback information from the data block.

FIG. 10 is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 10, this embodiment is applicable to a situation outside the above coverage. In step S1001, the transmitting node 130 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. In step S1003, the transmitting node 130 transmits data and target information to the receiving node 120. In step S1005, the receiving node 120 transmits feedback information according to the target information in response to the received data. In step S1007, the transmitting node 130 obtains feedback information according to the target information. Wherein, the present invention provides detailed descriptions of the embodiments with respect to the situations where the transmitting node 130 generates and transmits target information and the receiving node 120 transmits feedback information according to the target information, which are described below.

FIG. 11A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 11B at the same time. FIG. 11B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S1101, the transmitting node 130 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when the transmitting node 130 and the receiving node 120 are both located outside the network coverage of the base station 110, the transmitting node 130 generates target information, including connections from physical boundaries. A resource block selected for transmitting data in the shared channel is used to generate configuration information according to the resource block used for transmitting data, and the configuration information and the identification information of the transmitting node 130 are added to the target information.

In step S1103, the transmitting node 130 transmits data and target information to the receiving node 120. The target information includes identification information of the transmitting node 130. Specifically, the transmitting node 130 may use the physical boundary indicated by the configuration information to link the resource blocks in the shared channel to transmit the target information and data with the configuration information to the receiving node 120.

In step S1105, the receiving node 120 transmits feedback information according to the identification information in response to the received data. Specifically, after the receiving node 120 receives the data, the receiving node 120 may select a resource block for transmitting feedback information from the physical boundary connection control channel to generate feedback information according to the received data and identification information, and The selected resource block is used to transmit the feedback information to the transmitting node 130, wherein the receiving node 120 uses the resource block of the physical boundary link control channel to transmit the link information of the feedback information, and uses the physical boundary link control channel to transmit the feedback information.

In step S1107, the transmitting node 130 interprets the identification information to obtain feedback information. Specifically, the transmitting node 130 reads a resource block in the physical boundary connection control channel to determine whether there is a resource block having the identification information of the transmitting node 130. Until it is determined that there is a resource block having the identification information of the transmitting node 130, the transmitting node 130 obtains feedback information from the resource block, wherein the transmitting node 130 reads the connection via the physical boundary according to the configuration information recorded in the target information. The link information transmitted by the resource block of the control channel is used to link the control channel from the physical boundary. The resource block gets feedback information corresponding to the link information.

By the above method, the transmitting node 130 located outside the network coverage of the base station 110 can directly notify the receiving node 120 of its own identification information, and the receiving node 120 can directly set the identification information of the transmitting node 130 as the target information to The feedback information conveys the physical boundary link control channel. The transmitting node 130 can directly find the data block with its own identification information from the physical boundary connection control channel, so as to obtain the required feedback information from the data block.

FIG. 12A is a flowchart of a feedback control method for boundary link communication according to another embodiment of the present invention. Please refer to FIG. 12B at the same time, wherein FIG. 12B is a transmission schematic diagram of a feedback control system of boundary link communication according to another embodiment of the present invention.

In step S1201, the transmitting node 130 generates target information for transmitting feedback information for data transmission between the transmitting node 130 and the receiving node 120. Specifically, when the transmitting node 130 and the receiving node 120 are both outside the network coverage of the base station 110, the transmitting node 130 generates target information, including the resource block selected from the physical boundary link control channel to transmit the feedback information. , Generating configuration information based on the resource block used to send feedback information, and adding the configuration information to the target information.

In step S1203, the transmitting node 130 transmits data and target data to the receiving node 120, and the target information includes configuration information of the resources configured by the transmitting node 130 to transmit the feedback information. Specifically, the transmitting node 130 selects a resource block for transmitting data from the physical boundary link shared channel, and transmits the data and target information to the receiving node 120 according to the selected resource block.

In step S1205, the receiving node 120 uses the resources according to the configuration information to transmit feedback information in response to the received data. Specifically, the receiving node 120 may use the resource block in the physical boundary connection control channel indicated by the configuration information to transmit the feedback information to the transmitting node 130, wherein the receiving node 120 uses the resource block of the physical boundary connection control channel to transmit the link of the feedback information. Information, and use physical boundary link control channels to send feedback information.

In step S1207, the transmitting node 130 uses the resources according to the configuration information to receive the feedback information. Specifically, the transmitting node 130 receives feedback information from a resource block in the physical boundary connection control channel indicated by the configuration information.

With the above method, the transmitting node 130 outside the network coverage of the base station 110 can directly select the resources required for boundary link transmission and boundary link feedback, and the transmitting node 130 and the receiving node 120 can directly use the selected resources to complete the boundary. Link transmission and boundary link feedback, wherein the transmitting node 130 reads the connection information transmitted through the resource block of the physical boundary link control channel according to the configuration information recorded in the target information, and obtains it from the resource block of the physical boundary link control channel. Feedback information for link information.

In summary, the feedback control method of boundary link communication provided by the present invention provides a method for a transmitting node to obtain feedback information from a receiving node, wherein the present invention may choose to transmit the feedback information in a physical boundary link control channel. This can achieve the effect of saving the resources of the physical boundary link shared channel, and the use of the physical boundary link control channel can further increase the efficiency of obtaining feedback information.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Inventions, anyone with ordinary knowledge in the technical field to which they belong can make minor changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the scope of the attached patent application as follows: quasi.

Claims (18)

A feedback control method for boundary link communication is applicable to a boundary link communication system including a base station, a transmitting node, and a receiving node. The method includes the following steps: The base station generates data for the transmission between the transmitting node and the receiving node. Target information for transmitting feedback information; at least one of the transmitting node and the receiving node receives the target information transmitted by the base station, or receives the target information from another node of the at least one node. Said target information transmitted by said base station to said another node; and in response to said transmitting node transmitting data to said receiving node, said receiving node transmitting said feedback information according to said target information, and said transmitting node Obtaining the feedback information according to the target information, wherein the receiving node according to the configuration information of the resources configured by the base station to transmit the feedback information recorded in the target information, wherein the boundary link communication is used The control channel of the resource transmits the link information of the feedback information and uses the boundary The control channel transmitting the feedback information; and the transmitting node reads the link information transmitted through the resource of the control channel according to the configuration information recorded in the target information, so as to Obtaining the feedback information corresponding to the link information from the control channel. The feedback control method of boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the receiving node receives the target transmitted by the base station Information, the target information includes identification information of the transmitting node; the receiving node transmits the feedback information according to the identification information; and the transmitting node interprets the identification information to obtain the feedback information. The feedback control method of boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the transmitting node and the receiving node receiving the base station The target information transmitted, the target information including the configuration information of the resource configured by the base station to transmit the feedback information; the receiving node transmitting the feedback using the resource according to the configuration information Information; and the transmitting node receives the feedback information using the resource according to the configuration information. The feedback control method for boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the transmitting node receives the target transmitted by the base station Information, the target information includes the configuration information of the resource configured by the base station to transmit the data and the feedback information; the transmitting node uses the resource to transmit the data according to the configuration information and The configuration information to the receiving node; and the receiving node transmitting the feedback information to the transmitting node using the resource according to the configuration information. The feedback control method for boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the transmitting node receives the target transmitted by the base station Information, the target information includes the configuration information of the resource configured by the base station to transmit the data; the transmitting node uses the resource to transmit the data and its own identification information to the configuration information according to the configuration information The receiving node; the receiving node transmitting the feedback information according to the identification information; and the transmitting node interpreting the identification information to obtain the feedback information. The feedback control method of boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the receiving node receives the target transmitted by the base station Information, the target information includes a transmission mode configured by the base station to transmit the data and the feedback information, and the configuration information of the resource; the receiving node relays the configuration information to all The transmitting node; the transmitting node transmits the data to the receiving node using the transmission mode and the resource according to the configuration information; and the receiving node transmits the feedback using the resource according to the configuration information Information to the transmitting node. The feedback control method of boundary link communication according to item 1 of the scope of patent application, wherein the steps of receiving the target information and transmitting the feedback information include: the receiving node receives the target transmitted by the base station Information, the target information includes the transmission mode configured by the base station to transmit the data and the configuration information of the resource; the receiving node relays the configuration information to the transmitting node; The transmitting node transmits the data and its own identification information to the receiving node using the transmission mode and the resource according to the configuration information; the receiving node transmits the feedback information according to the identification information; and the The transmitting node interprets the identification information to obtain the feedback information. The feedback control method of boundary link communication according to item 1 of the scope of patent application, wherein the receiving node transmits the feedback information according to the target information, and the transmitting node obtains the feedback information according to the target information. The steps include: the receiving node transmitting the identification information of the transmitting node included in the target information using the control channel of the boundary link communication, and transmitting the control channel using the control channel of the boundary link communication. Feedback information; and the transmitting node interprets the identification information in the control channel to obtain the feedback information corresponding to the identification information from the control channel. A transmission node of a boundary link communication system includes: a communication module that uses boundary link communication to communicate with a base station and a receiving node of the boundary link communication system; a storage device that stores a plurality of instructions; and a processor that is coupled to the communication module And the storage device for loading and executing the instructions stored in the storage device to: use the communication module to transmit data to the receiving node; and use the communication module to receive data received by the The receiving node transmits the feedback information according to the target information in response to receiving the data, wherein the target information is generated by the base station for transmitting data between the transmitting node and the receiving node to transmit the information. The feedback information, the target information includes configuration information of a resource configured by the base station to transmit the feedback information, and the processor includes: using the communication module to receive the configuration from the base station Information; and reading the connection transmitted by the resource of the control channel of the boundary link communication according to the configuration information Information to the communication link from the boundary of the control channels to obtain the feedback information corresponding to the link information. The transmitting node according to item 9 of the patent application scope, wherein the target information includes identification information of the transmitting node, and the processor includes: using the communication module to interpret that the receiving node uses the boundary connection The identification information transmitted by the control channel of the communication is to obtain the feedback information corresponding to the identification information from the control channel of the boundary link communication. A receiving node of a boundary link communication system includes: a communication module that uses boundary link communication to communicate with a base station and a transmission node of the boundary link communication system; a storage device that stores multiple instructions; and a processor that is coupled to the communication module And the storage device for loading and executing the instructions stored in the storage device to: use the communication module to receive data transmitted by the transmitting node; and in response to receiving the data, use The communication module transmits feedback information according to target information, wherein the target information is information generated by the base station for transmitting data between the transmitting node and the receiving node to transmit the feedback information, The target information includes configuration information of resources configured by the base station to transmit the feedback information, and the processor includes: receiving the configuration from the base station or the transmitting node by using the communication module. Information; and using the resources of the control channel of the boundary link communication to transmit the feedback funds according to the configuration information Link information, and the boundary using the communication link control channel to transmit the feedback information. The receiving node according to item 11 of the scope of patent application, wherein the target information includes identification information of the transmitting node, and the processor includes the control using the communication module to use the boundary link communication. The identification information transmitted by the channel, and transmitting the feedback information using the control channel of the boundary link communication. A feedback control method for boundary link communication is applicable to a boundary link communication system including a transmitting node and a receiving node. The method includes the following steps: The transmitting node generates feedback information for transmitting data to and from the receiving node. Target information, wherein the target information includes configuration information of resources configured by the transmitting node to transmit the feedback information; the transmitting node transmits data and the target information to the receiving node; the receiving node In response to receiving the data, transmitting the feedback information according to the target information includes including the configuration information recorded in the target information, wherein the resource transmission using a control channel of the boundary link communication The link information of the feedback information, and transmitting the feedback information using the control channel of the boundary link communication; and the transmitting node obtaining the feedback information according to the target information, including according to the configuration information, Read the link information transmitted via the resources of the control channel , From the control channel to acquire the feedback information corresponding to the link information. The feedback control method for boundary link communication according to item 13 of the scope of patent application, wherein the target information includes identification information of the transmitting node, and the receiving node transmits the feedback information according to the target information, and the The step of the transmitting node obtaining the feedback information according to the target information includes: the receiving node transmitting the identification information using the control channel of the boundary link communication, and using the control channel of the boundary link communication Transmitting the feedback information; and the transmitting node interprets the identification information in the control channel to obtain the feedback information corresponding to the identification information from the control channel. A transmission node of a boundary link communication system includes: a communication module that uses boundary link communication to communicate with a receiving node of the boundary link communication system; a storage device that stores multiple instructions; and a processor that is coupled to the communication module and The storage device is used to load and execute the instructions stored in the storage device to: generate target information for transmitting feedback information for data transmission with the receiving node; and use the communication module Transmitting data and the target information to the receiving node; and using the communication module to obtain the feedback transmitted by the receiving node according to the target information in response to receiving the data according to the target information Information, wherein the target information includes configuration information of a resource configured by the transmitting node to transmit the feedback information, and the processor includes: reading the receiving node via the boundary according to the configuration information. The link information transmitted by the resource of the control channel of the link communication to obtain the reception according to the link information The boundary of the communication link to the control channel feedback information transmitted via a point. The transmitting node according to item 15 of the patent application scope, wherein the target information includes identification information of the transmitting node, and the processor includes: using the communication module to interpret that the receiving node uses the boundary connection The identification information transmitted by the control channel of the communication is to obtain the feedback information corresponding to the identification information from the control channel of the boundary link communication. A receiving node of a boundary link communication system includes: a communication module that uses boundary link communication to communicate with a transmitting node of the boundary link communication system; a storage device that stores multiple instructions; and a processor that is coupled to the communication module and The storage device is configured to load and execute the instructions stored in the storage device to: use the communication module to receive data and target information transmitted by the transmitting node, wherein the target information is provided by the Information generated by the transmitting node for transmitting data to and from the receiving node for transmitting feedback information; and in response to receiving the data, using the communication module to transmit feedback information according to target information, wherein the target The information includes configuration information of a resource configured by the transmission node to transmit the feedback information, and the processor includes transmitting the resource using the resource of a control channel of the boundary link communication according to the configuration information. Link information of feedback information, and transmitting the feedback information using the control channel of the boundary link communication The receiving node according to item 17 of the scope of patent application, wherein the target information includes identification information of the transmitting node, and the processor includes: using the communication module to control the boundary link communication. The identification information transmitted by the channel, and transmitting the feedback information using the control channel of the boundary link communication.