WO2019136700A1

WO2019136700A1 - Interference processing method, interference processing apparatus and computer storage medium

Info

Publication number: WO2019136700A1
Application number: PCT/CN2018/072423
Authority: WO
Inventors: 郜旭凯; 安林峰; 管鲍; 马树锋
Original assignee: 海能达通信股份有限公司
Priority date: 2018-01-12
Filing date: 2018-01-12
Publication date: 2019-07-18

Abstract

Disclosed are an interference processing method, an interference processing apparatus and a computer storage medium. When interference is caused in a wireless network, coordinated scheduling is carried out on links for data transmission in the wireless network, thus avoiding interference between the links and increasing the wireless resource utilization rate. The method of the embodiments of the present application comprises: receiving, by means of a measurement sub-frame, a reference signal sent by a node in a link group, wherein the link group is a group of links for simultaneous same-frequency data transmission, the links are channels when data transmission is carried out between two nodes in the link group, and the reference signal is a pre-set signal of the node stored in the link group; detecting the interference condition of the links in the link group according to the reference signal, wherein the interference condition comprises a link, where interference exists, in the link group, the interference strength and an interference source; and carrying out coordinated scheduling on the links in the link group according to the interference condition.

Description

Method for interference processing, interference processing device, and computer storage medium

Technical field

The present application relates to the field of communications, and in particular, to a method for interference processing, an interference processing device, and a computer storage medium.

Background technique

In a traditional wireless network, each wireless device must first connect to a wireless access point (AP) or router and then access the network through an AP or router. If communication needs to be performed between wireless devices, you must first access a fixed AP or router, and then transmit data through the fixed AP or router. The wireless devices cannot directly transmit between them. Therefore, a wireless mesh (Mesh) network has been developed. In a wireless Mesh network, any wireless device can act as an AP or a router at the same time, so wireless devices can directly transmit data through the wireless network, which facilitates data transmission of nodes in motion, for example, fleet or traveling wireless. Equipment, etc.

However, when two wireless devices transmit wirelessly, there may be two other wireless devices that use the same frequency for data transmission. There will be co-channel interference between the two transmission links, and the same frequency is provided in the existing scheme. The interference processing method includes: a carrier-sense multiple access with collision avoidance (CSMA/CA), and listens to the carrier transmitted by each node when the data is transmitted, and if the data is being sent. If there is co-channel interference between the links, each node randomly retreats to avoid data collision (ie, interference). The node at the backoff time cannot send data at this time, and if the backoff time is over, if the data continues to be heard. If the conflict is continued, the node that is mostly backed off cannot detect the data, and the air interface resource of the backoff node is wasted. Second, Node Coordination Function (PCF), through the node polling mechanism to avoid interference, that is, the AP polls the nodes connected to it in turn to determine whether there is data transmission, and only the polled node can send data, waiting After the sending is complete, the AP can continue to poll. Therefore, the node can only send data at a fixed time (that is, the time that is polled). At other times, the data cannot be sent actively, which causes waste of air interface resources at other times.

In summary, in the same-frequency interference processing scheme in the Mesh network provided by the existing solution, each node can only send data at an appropriate time, and most nodes cannot transmit data when the interference occurs, thereby causing waste of air interface resources.

Summary of the invention

The embodiment of the present application provides a method for interference processing, an interference processing device, and a computer storage medium. When interference occurs in a wireless network, coordinated scheduling of data transmission in the wireless network is performed to avoid link between links. Interference.

In view of this, the first aspect of the present application provides a method for interference processing, which may include:

Receiving, by the measurement subframe, a reference signal sent by a node in the link group, the link group is a packet of a link that performs data transmission at the same time, and the link is data transmission between two nodes in the link group. Time channel, the reference signal is a preset signal of a node stored in the link group;

Detecting, according to the reference signal, an interference situation of the link in the link group, where the interference situation includes a link with interference in the link group, an interference strength, and an interference source;

According to the interference situation, coordinated scheduling is performed for the links in the link group.

Optionally, the coordinated scheduling of the links in the link group according to the interference situation includes:

Determining a protection time slot for the link in the link group where the interference exists, and the protection time slot is used for the interference transmission link data;

A reserved time slot is determined for the link in the link group where there is no interference, and the reserved time slot is used for the link transmission data in which the interference does not exist.

Optionally, the reserved time slot is further used for the interference-transmitted link transmission data.

Optionally, the detecting, by the reference signal, the interference situation of the link in the link group includes:

Detecting a reference signal received power RSRP and a signal to interference and noise ratio SINR of the reference signal;

The link, the interference strength, and the interference source in the link group are determined according to the RSRP and the SINR.

Optionally, after detecting the interference condition of the link in the link group according to the reference signal, the method further includes:

Broadcast information is sent within the link group, and the broadcast information is used to notify the node in the link group of the interference condition.

Optionally, before the receiving the reference signal sent by all the nodes in the link group by the measurement subframe, the method further includes:

Assigning a link group number to the link group, assigning a link number to the link, and assigning a node number to the node, the link group number being used by the receiving node according to the link group when transmitting data, the link The number and the node number determine the sending node.

Optionally, after the coordinated scheduling is performed on the link in the link group according to the interference condition, the method further includes:

Monitoring interference by the measurement subframe;

If the interference with the interference is eliminated, the coordinated scheduling is stopped.

Optionally, the reference signals of the nodes in the link group are orthogonal to each other.

The second aspect of the present application provides an interference processing apparatus, including:

a receiving unit, configured to receive, by using a measurement subframe, a reference signal sent by a node in the link group, where the link group is a group of links that perform data transmission at the same time, and the link is two in the link group. a channel when data is transmitted between nodes, and the reference signal is a preset signal of a node stored in the link group;

a detecting unit, configured to detect, according to the reference signal, an interference situation of a link in the link group, where the interference situation includes a link with interference in the link group, an interference strength, and an interference source;

And a coordination unit, configured to perform coordinated scheduling on the links in the link group according to the interference situation.

Optionally, the coordination unit comprises:

a protection unit, configured to determine a protection time slot for the link that has interference in the link group, where the protection time slot is used for the interference transmission link transmission data;

And a reserved unit, configured to determine a reserved time slot for the link that does not have interference in the link group, where the reserved time slot is used for the link transmission data that does not have interference.

Optionally, the detecting unit comprises:

Detecting a subunit, detecting a reference signal received power RSRP of the reference signal and a signal to interference and noise ratio SINR;

Determining a subunit, determining, according to the RSRP and the SINR, a link, interference strength, and interference source in the link group.

Optionally, the interference processing device further includes:

And a broadcast unit, configured to send broadcast information in the link group, where the broadcast information is used to notify a node in the link group of the interference condition.

Optionally, the interference processing device further includes:

An allocating unit, configured to assign a link group number to the link group, assign a link number to the link, and assign a node number to the node, where the link group number is used by the receiving node according to the link when transmitting data The group, the link number, and the node number determine the sending node.

Optionally, the interference processing device further includes:

a monitoring unit, configured to monitor interference by using the measurement subframe;

The stopping unit is configured to stop the coordinated scheduling if the interference with the interference is eliminated.

The third aspect of the present application provides an interference processing apparatus, which may include:

a processor, a memory, a bus, and an input/output interface, the processor, the memory and the input/output interface being connected through the bus;

The memory for storing program code;

The steps of the method provided by the first aspect of the present application are performed when the processor calls the program code in the memory.

A fourth aspect of the present application provides a storage medium. It should be noted that the technical solution of the present application or the part that contributes to the prior art or all or part of the technical solution may be implemented by software. Formally embodied, the computer software product is stored in a storage medium for storing computer software instructions for use in the apparatus described above, including a program designed to perform the first aspect described above as an interference processing apparatus.

The storage medium includes: a U disk, a mobile hard disk, a read only memory (English abbreviation ROM, English full name: Read-Only Memory), a random access memory (English abbreviation: RAM, English full name: Random Access Memory), a disk or a disk. And other media that can store program code.

A fifth aspect of the present application provides a computer program product, the computer program product comprising computer software instructions, wherein the computer software instructions are loaded by a processor to implement the memory release method of any one of the above first aspects. Process.

As can be seen from the above technical solutions, the embodiments of the present application have the following advantages:

In the embodiment of the present application, the links of the same frequency are first grouped, the links of the same frequency are grouped into one group, and then the reference signal pre-stored in the node is received, and the chain in the link group is obtained according to the received reference signal. The interference condition of the road is coordinated according to the interference condition for the links in the link group, and the nodes in the link group can continue to transmit data. In the case of co-channel interference, data can continue to be transmitted, avoiding waste of air interface resources.

DRAWINGS

1 is a schematic diagram of a network topology structure of a wireless mesh network according to an embodiment of the present application;

2 is a schematic diagram of an embodiment of a method for interference processing in an embodiment of the present application;

3 is a schematic diagram of another embodiment of a method for interference processing in an embodiment of the present application;

4 is a schematic diagram of another embodiment of a method for interference processing in an embodiment of the present application;

FIG. 5 is a schematic diagram of another embodiment of a method for interference processing according to an embodiment of the present application; FIG.

6 is a schematic diagram of another embodiment of a method for interference processing in an embodiment of the present application;

FIG. 7 is a schematic diagram of an embodiment of an interference processing apparatus according to an embodiment of the present application;

FIG. 8 is a schematic diagram of another embodiment of an interference processing apparatus according to an embodiment of the present application;

FIG. 9 is a schematic diagram of another embodiment of an interference processing apparatus according to an embodiment of the present application.

Detailed ways

The embodiment of the present application provides a method for interference processing, an interference processing device, and a computer storage medium. When interference occurs in a wireless network, coordinated scheduling of data transmission in the wireless network is performed to avoid link between links. Interference, improve the utilization of wireless resources, and meet the throughput requirements in wireless networks.

Please refer to FIG. 1 , which is a schematic diagram of a network topology structure of a wireless mesh network in an embodiment of the present application. A wireless mesh network is composed of multiple wireless nodes. When data is transmitted, nodes in the wireless mesh network can serve as APs or routers, and can also access other nodes. That is, the device connected to the Mesh network can be used as the master device or the slave device. The device connected to the Mesh network may be any terminal device including a mobile phone, a tablet computer, a personal digital assistant (PDA), a point of sales (POS), a car computer, and the like.

When performing point-to-point communication (P2P), there are multiple nodes on the same time-frequency resource for data transmission, including links that use the same frequency for data transmission at the same time. The transmitted links are grouped together. When the node moves, for example, a high-speed moving in-vehicle device, a mobile phone on a traveling high-speed rail, or the like can also perform data transmission. Referring to FIG. 2, a schematic diagram of an embodiment of a method for interference processing in an embodiment of the present application includes:

201. Receive, by using a measurement subframe, a reference signal sent by a node in the link group.

In a wireless Mesh network, when performing data transmission, one receiving node receives reference signals sent by other nodes in the same link group except the receiving node, including the sending node of the same link and the same link in the same link group. The nodes in other links may be allocated in advance on all nodes, and the reference signals allocated for each node may be mutually orthogonal and then transmitted to the receiving node through the measurement subframe.

202. Detect, according to the received reference signal, an interference situation of a link in the link group.

The reference signal is preset in the receiving node, and the receiving node can decode the received reference signal according to the preset reference signal to measure the signal quality of the received reference signal, and then determine the signal quality according to the signal quality of the reference signal. The interference situation of the link where the receiving node is located, including whether the link has an interference link, the interference source in the presence of interference, and the interference strength.

203. Perform coordinated scheduling on the links in the link group according to the interference situation.

According to the interference situation, coordinated scheduling is performed on the links in the link group, and interference avoidance is performed on the circuit in which the interference exists. For example, two links that are simultaneously transmitted in the same frequency wait for one of the transmissions to be completed before continuing to transmit, or in a section. The time is sent in turn. It may also be that the transmission time slot when the interference is transmitted is preset in the node, and when the interference is detected, the interference transmission time slot is started, and the data is transmitted in the preset time slot for data transmission.

In the embodiment of the present application, a reference signal is first allocated to a node in a wireless Mesh network. When performing data transmission, the receiving node first receives a reference signal by measuring a subframe, and then detects a signal quality of the reference signal, and obtains and receives according to the signal quality. If there is interference in the interference of the transmission link between the node and the sending node, coordinated scheduling is performed, so that data transmission can also be performed when the same-frequency interference occurs in the Mesh network, without waiting, and the waste of air interface resources is avoided.

In the specific application scenario, there is a team of desert adventure vehicles, including 6 medium-sized off-road vehicles, each equipped with wireless vehicle equipment, including wireless vehicle equipment A, wireless vehicle equipment B, wireless vehicle equipment C, wireless vehicle equipment D, wireless vehicle The device E and the wireless in-vehicle device F each use a frequency of 2.4 GHz for data transmission. The wireless vehicle equipment A is in the first place of the team, and the vehicle equipment F is located in the last position of the team, that is, the sixth. At the same time, the wireless in-vehicle device A transmits data 1 to the wireless in-vehicle device B, the wireless in-vehicle device C transmits data 2 to the wireless in-vehicle device D, and the wireless in-vehicle device E transmits the data 3 to the wireless in-vehicle device F. The wireless vehicle device C is closer to the wireless vehicle device D, and the wireless vehicle device E is closer to the wireless vehicle device F. First, the wireless in-vehicle device B, the wireless in-vehicle device D, and the wireless in-vehicle device F respectively receive reference signals transmitted by wireless in-vehicle devices other than themselves, and the reference signals are a signal sequence that is allocated in advance in each wireless in-vehicle device. Taking the wireless in-vehicle device B as an example, the wireless in-vehicle device B receives the reference signals sent by the wireless in-vehicle device A, and also receives the reference signals transmitted by the wireless in-vehicle device C, the wireless in-vehicle device D, the wireless in-vehicle device E, and the wireless in-vehicle device F. Decoding the received reference signal according to the reference signal stored by itself, measuring the signal quality of each received reference signal, and then determining whether there is interference in the transmission link of the wireless in-vehicle device B, and the interference intensity in the presence of interference and The interference source, for example, the wireless in-vehicle device B obtains the measurement result according to the measured reference signal, and then determines, according to the result, that the wireless in-vehicle device C and the wireless in-vehicle device D have data interference with each other and the self-link, the wireless in-vehicle device The transmission mechanism when the interference has been pre-set in advance is included, including transmitting data in a preset time slot, and the two links transmitting data in different time slots to avoid interference.

The following is a detailed description of the method for the interference processing provided by the embodiment of the present application. Referring to FIG. 3, a schematic diagram of another embodiment of the method for interference processing in the embodiment of the present application includes:

301. Assign a link group number to the link group, assign a link number to the link, and assign a node number to the node;

In a mesh network, a node number of a node of the same frequency, a link number of the link of the node, and a link group number of the link group where the link is located may be allocated in advance. A link group may be composed of multiple links. For example, in a mesh network, four nodes are respectively numbered as node 0, node 1, node 2, and node 3. The link number between node 0 and node 1 is a chain. The link number composed of the node 0 and the node 3 is the link 1 and the link group number composed of the link 0 and the link 1 is the link group 0. It should be understood that the node number, the link number, and the link group number may be preset in the node, or may be randomly allocated before data transmission, which is not limited herein.

When performing data transmission, the receiving node determines the data source by the node number, the link number, and the link group number. For example, the link number of node 1 and node 0 is link 0, and the link number of node 2 and node 3 is Link 1, including the link group number of link 0 and link 1 is link group 1, then node 1 only receives the data sent by node 0 in link 0 in link group 1, when receiving the link except When the data sent by other nodes other than node 0 in link 0 in group 1 can identify the source of the data and stop receiving.

302. Receive a reference signal sent by a node in the link group by measuring a subframe;

First, the reference signals are preset in each node in the Mesh network, and the reference signals preset by each node are kept orthogonal to each other, and then the reference signals are stored in each node. During data transmission, the receiving node receives a reference signal sent by the other nodes except the own node in the Mesh network through the measurement subframe. The source of the reference signal can be determined by the node number, the link number, and the link group number.

303, detecting a reference signal received power RSRP of the reference signal and a signal to interference and noise ratio SINR;

After receiving the reference signal, the receiving node decodes the received reference signal according to the preset reference signal, and simultaneously measures the SINR of the sending node of the same link and the RSRP of all nodes in the link group.

304. Determine, according to the RSRP and the SINR, the link, the interference strength, and the interference source in the link group.

After detecting the RSRP and the SINR of the received reference signal, the receiving node determines the interference link, the interference strength, and the interference source in the link group where the receiving node is located according to the RSRP and the SINR. The method for determining that the interference exists may be determined by determining that the SINR of the link where the receiving node is lower than the first threshold and the RSRP of the link other than the link where the receiving node is located in the link group is higher than the second threshold. The corresponding link has interference or interferes with other links.

305. Send broadcast information in a link group.

The interference condition detected by the node, including the link with interference or other links of interference, is sent to other nodes outside the receiving node in the link group by means of broadcast information to ensure that all nodes are aware of the interference. Happening. For example, if node 1 at link 0 detects that link 5 interferes with link 0, and node in link 5 does not detect that it interferes with other links, then the broadcast information sent by node 1 is received. The node in path 5 knows that link 5 interferes with link 0.

306. Determine a protection slot for a link that has interference in the link group, and determine a reserved slot for the link that does not have interference in the link group.

When a link interferes with or interferes with other links in the link group, the protection slot transmission data may be started, and the protection slot is a preset transmission slot in the node, and the protection is used when the interference is found. The time slot performs data transmission, and the protection time slot can only be used by the link. It is also possible to assign a guard slot to the link in which the interference exists, which guard slot can only be used by the link. A link that does not have interference can continue to transmit data, and the reserved time slot can be used by other links when the link interferes.

When there is no interference in the link, its reserved time slot is used by other links. The reserved time slot can be occupied by other links with interference, that is, other interference-enabled links use the time slot to transmit data.

307. Continue to monitor interference by measuring subframes;

After the coordinated scheduling, the receiving node continues to detect interference by measuring the subframe, and the measurement subframe may include a reference signal.

308. If the interference of the link interference is eliminated, the coordinated scheduling is stopped.

If, after the coordinated scheduling, the receiving node does not detect that the link where the receiving node is located does not interfere or does not interfere with other links in the link group, the coordinated scheduling is stopped, and normal data transmission is performed.

In the embodiment of the present application, the nodes, links, and link groups that are simultaneously transmitted in the same frequency are numbered, and data is distinguished by number when performing data transmission, and data sent by the correct node can be received, and the accuracy of the received data is improved. . The receiving node receives the reference signal sent by other nodes in the same link group by using the measurement subframe, and determines the interference condition by detecting the SINR and the RSRP of the received reference signal, including whether the link of the receiving node has interference or interferes with other Link, and the interference strength and interference source if there is interference. When there is interference in the link group, coordination interference occurs, the link with interference or the link that interferes with other links in the link group, and the protection slot is used for data transmission. In the protection slot, only the The link corresponding to the protection slot can perform data transmission. Without the link that interferes or does not interfere with other links in the link group, the reserved time slots can be occupied by other links, that is, other links can use the reserved time slots to transmit data. Therefore, when the link is found to have interference or interferes with other links in the link group, coordinated scheduling can be performed, so that the link with the interference can continue to send data, improve resource utilization, and avoid waste of air interface resources. At the same time, the services between the nodes can continue to operate normally without stopping or waiting for the data transmission of other links to be completed. After the coordinated scheduling, the detection is continued through the measurement subframe. If the interference cancellation is found, the coordinated scheduling is stopped, so that the data transmission can be performed normally.

In a specific implementation manner, as shown in FIG. 4, a Mesh network includes a node A, a node B, a node C, a node D, a node M, a node N, and other nodes, and the node A, the node B, the node C, and the node D, node M, node N and other nodes are nodes for simultaneous data transmission at the same frequency, node A, node B, node C, node D, node M and node N are respectively defined as node 0, node 1, node 2, node 3, node 4 and node 5, the link between node 0 and node 1 is link 0, the link between node 2 and node 3 is link 1 and the link between node 4 and node 5 is link 2, and the chain is The link group where Route 0, Link 1 and Link 2 are located is defined as Link 0.

As shown in FIG. 5, another embodiment of the method for interference processing in the embodiment of the present application includes:

501-503. The sending node sends a reference signal to the receiving node.

Node 1, Node 3, and Node 5 are receiving nodes, and Node 0, Node 2, and Node 4 are transmitting nodes. The node 1, the node 3, and the node 5 measure the reference signals sent by the node 0, the node 2, and the node 4 respectively, and the receiving node also receives the reference signal sent by the sending node of the same link in the link group, and The reference signal sent by the nodes in other links in the same group is obtained by measuring the subframe. It should be noted that, in the embodiment of the present application, the execution sequence of the steps 501 to 503 is not limited, and the step 501 may be performed first, or the step 502 may be performed first, and the step 503 may be performed first, which is not limited herein.

504-506, the receiving node detects interference;

After receiving the reference signal sent by the other node except the receiving node in the link group where the receiving node is located, the receiving node decodes the received reference signal according to the preset reference signal, and separately measures the reference sent by the sending node in the same link. The SINR of the signal and the RSRP of the reference signal sent by all nodes in the same link group detect the interference situation in the link group according to the SINR and the RSRP. The interference situation is that link 0 and link 1 have interference with each other, link 3 has no interference, and does not interfere with other links in the link group. The embodiment of the present application does not limit the execution sequence of the steps 504 to 506. The step 504 may be performed first, or the step 505 may be performed first, and the step 506 may be performed first, which is not limited herein.

507-509, the receiving node performs broadcast feedback;

The receiving node broadcasts the monitored interference condition and sends the interference to all the nodes in the same link group through the broadcast information, so that all the nodes in the same link group obtain the interference to avoid other nodes. It is detected that the presence of one of the links interferes with or interferes with other links, resulting in data loss, data errors, etc. during data transmission. For example, if link 1 and link 2 are detected to interfere with each other, link 3 has no interference, and the defined broadcast format is: [link group number: interference flag], then the broadcast signal sent by node 1 is [0:110]. The broadcast signal sent by node 2 is [0:110], and the broadcast signal sent by node 3 is [0:000], where 1 identifies that the link interferes with other links in link group 0, or the link There is interference, and 0 indicates that the link does not interfere or does not interfere with other links within link group 0.

It should be noted that, in the embodiment of the present application, the execution sequence of the steps 507 to 509 is not limited, and the step 507 may be performed first, or the step 508 may be performed first, and the step 509 may be performed first, which is not limited herein.

510. Adjust a transmission time slot in the link group.

When it is detected that there is interference in the link group, the interference time slot will be started, that is, the data is transmitted using a fixed time slot, which may be preset in all nodes, and if the time slot reserved for detecting interference exists, . In a link that interferes with each other, only one of the links in the same time slot can transmit data. There is no interference or interference with links of other links in the same link group, and the reserved time slots can be occupied by other links that have interference or interfere with other links. That is, there is no interference or a link that interferes with other links in the same link group, and all time slots are used for data transmission.

Then, the interference monitoring is continued, and if the interference is found to be eliminated, the coordinated scheduling is stopped.

For example, when interference is detected, the transmission slot of link 1 is [100100100100100100], the transmission slot of link 2 is [010010010010010010], the transmission slot of link 3 is [001001001001001001], and 1 identifies the slot. Transmit data, 0 identifies that the time slot cannot transmit data. It is detected that link 1 and link 2 interfere with each other, link 3 has no interference, and does not interfere with other links in link group 0, and the reserved time slot of link 3 can be connected by link 1 or link 2. Occupied, for example, the transmission slot of link 1 is [101100101100101100], the transmission slot of link 2 is [010011010011010011], and the transmission slot of link 3 is [111111111111111111], that is, all slots can be transmitted.

The receiving node detects the interference, and the specific interference determining process may be a flowchart as shown in FIG. 6, including:

601. Measure a reference signal interference noise ratio of the corresponding sending node and a reference signal power of other nodes in the link group;

The receiving node not only measures the SINR of the orthogonal reference signal of the transmitting node that is in the same link as the receiving node, but also needs to measure the RSRP set of the reference signal sent by other nodes in the same link group except the receiving node, for example, RSRP0 to RSRP4. .

602. Calculate an average signal interference to noise ratio of the sending node.

The average SINR of the transmitting node is calculated, and the average SINR may be the SINR after the jitter value is filtered by the filter.

603, determining whether the average signal interference noise ratio is greater than the first threshold, if yes, executing step 604, if not, executing step 609;

Determining whether the average SINR is greater than a first threshold, the first threshold may be a preset value, and if yes, executing step 604, and if no, executing step 609.

604. Determine a number of interference nodes in which other reference signals are greater than a second threshold.

Determining the number of the interfering nodes in the RSRP after the RSRP of the RSRP set is filtered by the smoothing filter to remove the motion value, and the RSRP of the reference signal received by the receiving node is greater than the second threshold. Node.

605, determine whether the number of interference nodes is greater than the preset number, and if so, step 608 is performed, and if not, step 606 is performed;

After determining that the RSRP value of the RSRP set is greater than the second threshold by the smoothing filter filtering value, determine whether the quantity is greater than a preset number, and if yes, execute step 608; if not, execute the step 606.

606. Calculate a power sum of reference signal powers of other nodes;

If the number of interfering nodes is not greater than the preset number, the power sum of all RSRPs in the RSRP set is calculated.

607, determine whether the power is greater than the preset power and threshold, and if so, proceed to step 608, and if not, proceed to step 609;

It is determined whether the power of all RSRPs in the RSRP set is greater than a preset power and a threshold. If yes, step 608 is performed, and if no, step 609 is performed.

608. Determine a node that has interference and interference.

If the number of the interference nodes is greater than the preset number, it is determined whether there is interference, and the node corresponding to the RSRP of the second threshold reference signal is regarded as the node with interference; if the number of the interference nodes is not greater than the preset number, and the RSRP set is If the power of all RSRPs is greater than the preset power and the threshold, it is determined that there is interference, and the RSRP with the largest median value of the RSRP set is taken out, and the sending node of the reference signal corresponding to the RSRP is regarded as the node with interference.

609. Perform other processes.

Other processes include the end of interference detection, or re-interference detection.

The foregoing describes the method for the interference processing in the embodiment of the present application. The embodiment of the present application further provides an interference detecting device. Referring to FIG. 7, a schematic diagram of an embodiment of the interference processing device in the embodiment of the present application is provided.

The interference processing device includes:

The receiving unit 701 is configured to receive, by using the measurement subframe, a reference signal sent by a node in the link group, where the link group is a group of links that perform data transmission at the same time, and the link is two in the link group. a channel for data transmission between nodes, the reference signal being a preset signal of a node stored in the link group;

The detecting unit 702 is configured to detect, according to the reference signal, an interference situation of a link in the link group, where the interference situation includes a link with interference in the link group, an interference strength, and an interference source;

The coordination unit 703 is configured to perform coordinated scheduling on the links in the link group according to the interference situation.

Referring to FIG. 8 , a schematic diagram of another embodiment of an interference processing apparatus in an embodiment of the present application includes:

The receiving unit 801, the detecting unit 802, and the coordinating unit 803 in the embodiment of the present application are similar to the receiving unit 701, the detecting unit 702, and the coordinating unit 703 in FIG.

Optionally, in some embodiments of the present application,

The coordination unit 803 can include:

a protection sub-unit 8031, configured to determine, for a link that has interference in the link group, a protection time slot, where the protection time slot is used for the interference-transmitted link transmission data;

The reserved subunit 8031 is configured to determine a reserved time slot for the link in the link group where there is no interference, and the reserved time slot is used for the link transmission data in which the interference does not exist.

Optionally, in some embodiments of the present application,

The reserved time slot is also used for the interference transmitted link transmission data.

Optionally, in some embodiments of the present application,

The detecting unit 802 includes:

The detecting subunit 8021 detects the RSRP and the SINR of the reference signal;

The determining sub-unit 8022 determines, according to the RSRP and the SINR, the interference-carrying link, the interference strength, and the interference source in the link group.

Optionally, in some embodiments of the present application,

The interference processing device further includes:

The broadcast unit 804 is configured to send broadcast information in the link group, where the broadcast information is used to notify the node in the link group of the interference situation.

Optionally, in some embodiments of the present application,

The interference processing device further includes:

The allocating unit 805 is configured to allocate a link group number to the link group, assign a link number to the link, and assign a node number to the node, where the link group number is used to receive the node according to the chain when transmitting data. The route group, the link number and the node number determine the sending node.

Optionally, in some embodiments of the present application,

The interference processing device further includes:

Monitoring unit 806, configured to monitor interference by using the measurement subframe;

The stopping unit 807 is configured to stop the coordinated scheduling if the interfered link interference is eliminated.

FIG. 9 is a schematic diagram of an interference processing apparatus according to an embodiment of the present application. The interference processing apparatus 900 may generate a large difference due to different configurations or performances, and may include one or more central processing units (CPUs) 922. (eg, one or more processors) and memory 932, one or more storage media 930 that store application 942 or data 944 (eg, one or one storage device in Shanghai). Among them, the memory 932 and the storage medium 930 may be short-term storage or persistent storage. The program stored on storage medium 930 may include one or more modules (not shown), each of which may include a series of instruction operations in the interference processing device. Still further, central processor 922 can be configured to communicate with storage medium 930, executing a series of instruction operations in storage medium 930 on detection device 900.

Interference processing device 900 may also include one or more power sources 926, one or more wired or wireless network interfaces 950, one or more input and output interfaces 958, and/or one or more operating systems 941, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.

The steps performed by the interference processing apparatus in the above embodiments may be based on the interference processing apparatus configuration shown in FIG.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of Figures 2 through 6 of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above embodiments are only used to explain the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions of the embodiments do not depart from the spirit and scope of the technical solutions of the embodiments of the present application. The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for interference processing, comprising:

Receiving, by the measurement subframe, a reference signal sent by a node in the link group, where the link group is a packet of a link that performs data transmission at the same time, and the link is between two nodes in the link group. a channel for performing data transmission, wherein the reference signal is a preset signal of a node stored in the link group;

Detecting, according to the reference signal, an interference situation of a link in the link group, where the interference situation includes a link with interference in the link group, an interference strength, and an interference source;

Coordinating scheduling of links within the link group according to the interference situation.
The method according to claim 1, wherein the scheduling of the links in the link group according to the interference situation comprises:

Determining, for the link group in the link group, a protection time slot, where the protection time slot is used for the interference-transmitted link transmission data;

A reserved time slot is determined for the link in the link group where there is no interference, and the reserved time slot is used for the link transmission data in which the interference does not exist.
The method of claim 2 wherein:

The reserved time slot is also used for the interference transmitted link transmission data.
The method according to any one of claims 1 to 3, wherein the detecting the interference condition of the link in the link group according to the reference signal comprises:

Detecting a reference signal received power RSRP and a signal to interference and noise ratio SINR of the reference signal;

Determining the interference-carrying link, the interference strength, and the interference source in the link group according to the RSRP and the SINR.
The method according to claim 4, wherein after the detecting the interference condition of the link in the link group according to the reference signal, the method further includes:

Broadcast information is sent in the link group, and the broadcast information is used to notify the node in the link group of the interference situation.
The method according to claim 5, wherein the method further comprises: before the receiving the reference signal sent by all the nodes in the link group by the measurement subframe, the method further comprises:

Assigning a link group number to the link group, assigning a link number to the link, and assigning a node number to the node, the link group number being used by the receiving node according to the link when transmitting data The group, the link number, and the node number determine a transmitting node.
The method according to claim 6, wherein after the coordinated scheduling of the links in the link group according to the interference condition, the method further includes:

Monitoring interference by the measurement subframe;

If the interference with the interference is eliminated, the coordinated scheduling is stopped.
The method according to any one of claims 1 to 3, wherein the reference signals of the nodes in the link group are orthogonal to each other.
An interference processing device, comprising:

a receiving unit, configured to receive, by using a measurement subframe, a reference signal sent by a node in a link group, where the link group is a group of links that perform data transmission at the same time, and the link is in the link group. a channel for data transmission between two nodes, the reference signal being a preset signal of a node stored in the link group;

a detecting unit, configured to detect, according to the reference signal, an interference situation of a link in the link group, where the interference situation includes a link with interference in the link group, an interference strength, and an interference source;

And a coordination unit, configured to perform coordinated scheduling on the links in the link group according to the interference situation.
The interference processing device according to claim 9, wherein the coordination unit comprises:

a protection subunit, configured to determine a protection time slot for the link that has interference in the link group, where the protection time slot is used for the interference transmission link transmission data;

And a reserved subunit, configured to determine a reserved time slot for the link that does not have interference in the link group, where the reserved time slot is used for the link transmission data that does not have interference.
The interference processing device according to claim 10, characterized in that

The reserved time slot is also used for the interference transmitted link transmission data.
The interference processing device according to any one of claims 9-11, wherein the detecting unit comprises:

Detecting a subunit, detecting a reference signal received power RSRP and a signal to interference and noise ratio SINR of the reference signal;

Determining a subunit, determining, according to the RSRP and the SINR, a link, interference strength, and interference source in the link group.
The interference processing device according to claim 12, wherein the interference processing device further comprises:

And a broadcast unit, configured to send broadcast information in the link group, where the broadcast information is used to notify the node in the link group of the interference situation.
The interference processing device according to claim 13, wherein the interference processing device further comprises:

An allocating unit, configured to allocate a link group number to the link group, assign a link number to the link, and assign a node number to the node, where the link group number is used to receive a node when transmitting data According to the link group, the link number and the node number determine a sending node.
The interference processing device according to claim 14, wherein the interference processing device further comprises:

a monitoring unit, configured to monitor interference by using the measurement subframe;

The stopping unit is configured to stop the coordinated scheduling if the interference with the interference is eliminated.
The interference processing apparatus according to any one of claims 9-11, wherein the reference signals of the nodes in the link group are orthogonal to each other.
An interference processing device, comprising:

a processor, a memory, a bus, and an input and output interface;

Program code is stored in the memory;

The steps of the method of any one of claims 1 to 8 are performed when the processor invokes program code in the memory.
A computer readable storage medium comprising instructions for causing a computer to perform the method of any one of claims 1 to 8 when the instructions are run on a computer.