CN106937380A - Method for processing resource and device - Google Patents
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- CN106937380A CN106937380A CN201511008723.7A CN201511008723A CN106937380A CN 106937380 A CN106937380 A CN 106937380A CN 201511008723 A CN201511008723 A CN 201511008723A CN 106937380 A CN106937380 A CN 106937380A
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- H—ELECTRICITY
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Abstract
The invention discloses method for processing resource and device, the method includes：V2X nodes know that generation resource contention or resource are busy；V2X nodes send alarm information, wherein, alarm information is used to indicate resource contention or resource is busy.By the present invention solve the problems, such as in the prior art conflict or busy detection in the presence of, make collision detection relatively reliable.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a resource processing method and apparatus.
Background
In 3GPP V2X communication, when multiple nodes perform direct communication between terminals (including different types such as legacy, Infrastructure, and peedestrian), a commonly used resource selection method includes schemes such as autonomously performing distributed resource selection by the nodes or centrally scheduling resources by eNodeB/scheduling nodes. Since the density and mobility of the terminals are both at a high level in the V2X communication scenario, collisions caused by multiple nodes transmitting/receiving V2X communication messages on the same time-frequency resource are prone to occur under various resource selection schemes. Currently, no specific conflict resolution exists in the V2X system.
When selecting communication resources, the V2X node may perform autonomous periodic or aperiodic resource reselection whether collision occurs or not, which can indirectly solve the problem caused by resource collision, but the reselection time after collision is difficult to predict, and is usually not time-efficient enough to meet the requirement of collision resolution. However, there is no specific embodiment.
Disclosure of Invention
The invention provides a resource processing method and a resource processing device, which are used for solving the problems in conflict or busy detection in the prior art.
According to an aspect of the present invention, there is provided a resource processing method, including: the V2X node learns that resource conflict occurs or the resource is busy; and the V2X node sends an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or resources are busy.
Further, the learning, by the V2X node, that a resource conflict occurs or a resource is busy includes: the V2X node detects that the sending resource conflicts or the resources are busy; or after the V2X node receives the warning message sent by other nodes, it determines that resource conflict occurs or the resource is busy according to the received warning message.
Further, the detecting, by the V2X node, that the transmission resource conflicts or the resources are busy includes: the V2X node monitors a V2X control resource pool and a data resource pool, records the received energy level of each transmission resource, and determines that the resource pool with abnormal energy level is busy; wherein the capability level anomaly comprises at least one of: the lowest received energy is outside a first predetermined range, the average received energy is outside a second predetermined range, and the highest received energy is outside a third predetermined range; the V2X node monitors a V2X control resource pool and a data resource pool, records the receiving energy level of each transmission resource, and determines that the resource conflict occurs in the transmission resource block of which the receiving energy level is outside a fourth preset range; the V2X node listens to a V2X control message, analyzes the data time frequency domain resource positions indicated by the V2X control message, and considers that resource collision occurs at the overlapped resource positions when the data time frequency domain resource positions indicated by a plurality of received V2X control messages are completely overlapped or partially overlapped; the V2X node listens to the V2X control message, analyzes the data time-frequency domain resource position indicated by the V2X control message, calculates the time-frequency domain resource positions used by the first transmission, the non-first transmission and the non-current period transmission of the V2X control message and the data message according to the transmission periodicity and the frequency hopping formula, and considers that resource conflict occurs when any known occupied control or data resource position is repeated or partially repeated with the known occupied control or data resource position.
Further, the first predetermined range, the second predetermined range, the third predetermined range and the fourth predetermined range are the same or different, and the setting of the first predetermined range, the second predetermined range, the third predetermined range and/or the fourth predetermined range includes at least one of: the base station or the scheduling node is configured, calculated according to service attributes, calculated according to resource pool types, and exclusive to the resource pool.
Further, the V2X node sending the warning message includes at least one of: the V2X node sends the alarm message to other nodes in the communication range in a unicast, multicast or broadcast mode; and the V2X node sends the warning message to a base station or a scheduling node.
Further, the alarm message carrying at least one of the following: an alarm type for indicating that the resource pool is busy or that the transmission resources conflict; identity of the conflicting node; a busy resource pool identity appears; a conflicting resource location; conflict service identity identification and/or type identification; a conflict level or busy level to indicate the degree of conflict or busy.
Further, the conflict level or the busy level is calculated by at least one of: a received energy level of a resource or resource pool, a received energy range, a number of colliding nodes or colliding traffic, a received energy level per colliding node or per colliding traffic.
Further, the resource location used by the alarm message includes at least one of: using an alarm resource pool which is the same as or partially the same as the control resource pool and/or the data resource pool; using an alarm resource pool orthogonal to the control resource pool and/or the data resource pool; calculating the resource position of the alarm resource pool according to the positions of the control resource pool and/or the data resource pool; the alarm resource pool uses a plurality of time-frequency resources which are continuous or discontinuous periodically; configuring an initial resource position of an alarm resource pool, and deducing a subsequent resource position according to a preconfigured formula; the V2X node randomly selects an alarm resource in an alarm resource pool; the V2X node selects an alarm resource in an alarm resource pool according to the received energy; the V2X node uses a warning resource position which is mapped according to at least one of a node ID, a node type, a node subordinate group, a service type, a service ID, a warning type, a warning message transmission mode, a warning resource or a resource pool position and a busy level and is pre-configured in the warning resource pool; the V2X node uses the resource position allocated or pre-configured by the base station or the scheduling node in the alarm resource pool; and the V2X node calculates the resource position used by the alarm in the alarm resource pool according to the conflict/busy position.
Further, the method further comprises: performing conflict or busy evasion according to at least one of the following conditions: the base station or the scheduling node judges whether to reallocate transmission resources or a transmission resource pool used by the conflict node; the base station or the scheduling node judges whether the conflict node should initiate the reselection of resources and/or a resource pool by itself; the base station or the scheduling node sends an alarm message to inform related nodes to judge whether to reselect resources and/or a resource pool; the V2X node judges whether to forward the warning message, judges whether the forwarding mode is broadcast or unicast, and judges the unicast forwarding target node; the V2X node judges whether to reselect a resource pool and/or transmission resource used by the service; the base station or the scheduling node reallocates transmission resources or transmission resource pools used by the conflict nodes and informs the scheduling results to the conflict nodes; the base station or the scheduling node informs the conflict node to initiate the reselection of resources and/or a resource pool by itself; the V2X node reselects the resource pool and/or transmission resource used by the traffic.
Further, the parameter upon which the condition depends includes at least one of: the alarm message is sent in a unicast or broadcast mode, the conflict or busy level, the identity of the conflict or busy resource pool, the location of the conflict or busy resource, the identity of the conflict or busy node, the identity of the conflict or busy service type, and the local information of the V2X node.
Further, the manner of judging the condition according to the parameter includes at least one of: sorting the parameters according to the priority and comparing the parameters in sequence; giving weight to the parameters, calculating the weighted sum and then comparing; a pseudo-random algorithm based on the parameters is used.
According to another aspect of the present invention, there is also provided a resource processing apparatus, located in a V2X node, including: the acquisition module is used for acquiring resource conflict or resource busy; and the sending module is used for sending an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or resources are busy.
According to the invention, the V2X node is adopted to know that resource conflict occurs or resources are busy; and the V2X node sends an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or resources are busy. The invention solves the problems in the prior art in conflict or busy detection, and ensures that the conflict detection is more reliable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow diagram of a resource processing method according to an embodiment of the invention;
fig. 2 is a block diagram of a structure of a resource processing apparatus according to an embodiment of the present invention;
FIG. 3 is a first schematic diagram of an ad hoc network node topology according to an embodiment of the present invention;
FIG. 4 is a diagram of a second Ad hoc network node topology according to an embodiment of the present invention;
fig. 5 is a third schematic diagram of an ad hoc network node topology according to an embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In the present embodiment, a resource processing method is provided, and fig. 1 is a flowchart of a resource processing method according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, the V2X node learns that resource conflict occurs or the resource is busy;
step S104, the V2X node sends an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or the resource is busy.
Through the steps, the V2X node can acquire that the resource has a problem and send an alarm message to notify, so that the device receiving the notification can process the notification. Through the steps, the problems in conflict or busy detection in the prior art are solved, and the conflict detection is more reliable.
In the embodiment, two ways of knowing that resource conflict occurs or resources are busy are provided.
First, the V2X node detects a collision of transmission resources or a busy resource.
In the first mode, the V2X node may monitor the V2X control resource pool and the data resource pool, record the received energy level on each transmission resource, and determine that the resource pool with abnormal energy level is busy; wherein the energy level anomaly comprises at least one of: the lowest received energy is outside a first predetermined range, the average received energy is outside a second predetermined range, and the highest received energy is outside a third predetermined range; the V2X node monitors the V2X control resource pool and the data resource pool, records the receiving energy level of each transmission resource, and determines that the resource conflict occurs in the transmission resource block of which the receiving energy level is outside the fourth preset range; the V2X node monitors the V2X control message, analyzes the data time-frequency domain resource position indicated by the V2X control message, and considers that resource conflict occurs at the overlapped resource position when the data time-frequency domain resource positions indicated by a plurality of received V2X control messages are completely overlapped or partially overlapped; the V2X node listens to the V2X control message, analyzes the data time-frequency domain resource position indicated by the V2X control message, calculates the time-frequency domain resource positions used by the transmission of the V2X control message and the data message in the first transmission period, the non-first transmission period and the non-current period according to the transmission periodicity and the frequency hopping formula, and considers that resource conflict occurs if any known occupied control or data resource position is repeated or partially repeated with the control or data resource position.
As a preferred embodiment, the first predetermined range, the second predetermined range, the third predetermined range and the fourth predetermined range are the same or different, and the setting of the first predetermined range, the second predetermined range, the third predetermined range and/or the fourth predetermined range comprises at least one of: the base station or the scheduling node is configured, calculated according to the service attribute, calculated according to the resource pool type, and exclusive to the resource pool.
In the second mode, after the V2X node receives the alarm message sent by other nodes, it determines that resource conflict occurs or the resource is busy according to the received alarm message.
The mode of sending the warning message by the V2X node is various, and as an optional implementation, the V2X node may send the warning message to other nodes in the communication range in a unicast, multicast or broadcast mode; alternatively, the V2X node may also send an alert message to the base station or scheduling node.
As an optional implementation, the alert message may carry at least one of the following: an alarm type for indicating that the resource pool is busy or that the transmission resources conflict; identity of the conflicting node; a busy resource pool identity appears; a conflicting resource location; conflict service identity identification and/or type identification; a conflict level or busy level to indicate the degree of conflict or busy.
As an alternative embodiment, the conflict level or busy level is calculated by at least one of: a received energy level of a resource or resource pool, a received energy range, a number of colliding nodes or colliding traffic, a received energy level per colliding node or per colliding traffic.
As an optional implementation, the resource location used by the warning message includes at least one of the following: using an alarm resource pool which is the same as or partially the same as the control resource pool and/or the data resource pool; using an alarm resource pool orthogonal to the control resource pool and/or the data resource pool; calculating the resource position of the alarm resource pool according to the positions of the control resource pool and/or the data resource pool; the alarm resource pool uses a plurality of time-frequency resources which are continuous or discontinuous periodically; configuring an initial resource position of an alarm resource pool, and deducing a subsequent resource position according to a preconfigured formula; the V2X node randomly selects alarm resources in the alarm resource pool; the V2X node selects the alarm resource in the alarm resource pool according to the received energy; the V2X node uses a warning resource position which is mapped according to at least one of a node ID, a node type, a node subordinate group, a service type, a service ID, a warning type, a warning message transmission mode, a warning resource or a resource pool position and a busy level and is pre-configured in the warning resource pool; the V2X node uses the resource position allocated or pre-configured by the base station or the scheduling node in the alarm resource pool; and the V2X node calculates the resource position used by the alarm according to the conflict/busy position in the alarm resource pool.
In another alternative embodiment, the conflict or busy evasion may also be performed according to at least one of the following conditions: the base station or the scheduling node judges whether to reallocate transmission resources or a transmission resource pool used by the conflict node; the base station or the scheduling node judges whether the conflict node should initiate the reselection of resources and/or a resource pool by itself; the base station or the scheduling node sends an alarm message to inform related nodes to judge whether to reselect resources and/or a resource pool; the V2X node judges whether to forward the warning message, judges whether the forwarding mode is broadcast or unicast, and judges the unicast forwarding target node; the V2X node judges whether to reselect a resource pool and/or transmission resource used by the service; the base station or the scheduling node reallocates transmission resources or transmission resource pools used by the conflict nodes and informs the scheduling results to the conflict nodes; the base station or the scheduling node informs the conflict node to initiate the reselection of resources and/or a resource pool by itself; the V2X node reselects the resource pool and/or transmission resource used by the traffic.
As an optional embodiment, the parameter on which the condition depends includes at least one of: the alarm message is sent in a unicast or broadcast mode, the conflict or busy level, the identity of the conflict or busy resource pool, the location of the conflict or busy resource, the identity of the conflict or busy node, the identity of the conflict or busy service type, and the local information of the V2X node.
As an optional implementation manner, the manner in which the condition is determined according to the parameter includes at least one of: sorting the parameters according to the priority and comparing the parameters in sequence; giving weight to the parameters, calculating the weighted sum and then comparing; a pseudo-random algorithm based on the parameters is used.
In this embodiment, a resource processing apparatus is further provided and located in a V2X node, and fig. 2 is a block diagram of a structure of the resource processing apparatus according to the embodiment of the present invention, as shown in fig. 2, the structure includes:
a learning module 22, configured to learn that a resource conflict occurs or a resource is busy;
and a sending module 24, configured to send an alarm message, where the alarm message is used to indicate that a resource conflict occurs or a resource is busy.
This is described below in connection with an alternative embodiment.
The embodiment provides a feasible collision warning method in the communication process of 3GPP V2X, which is a supplement to the current collision sensing means of V2X nodes, and notifies other nodes of the collision condition detected by the V2X node through a dedicated message, so that the collision sensing process of the V2X system has higher reliability and instantaneity, and thus, interference avoidance is triggered at the collision node as soon as possible to improve the system performance.
The method for sensing a conflict or busy in the V2X communication system by the V2X node comprises any combination of the following:
a) monitoring a V2X control resource pool and a data resource pool, recording the receiving energy level on each transmission resource, and when the lowest and/or average and/or highest receiving energy level of a certain resource pool is higher than a threshold value, considering that the resource pool is busy;
b) monitoring a V2X control resource pool and a data resource pool, recording the receiving energy level of each transmission resource, and considering that a conflict occurs on the transmission resource block when the receiving energy level of a certain transmission resource is higher than a threshold value;
the threshold setting methods in a) and b) above include any combination of: pre-configured; the nodes are configured in a high layer; configured by an eNodeB or scheduling node; calculating according to the service attribute; calculating according to the type of the resource pool; proprietary to the resource pool;
c) monitoring the V2X control message, analyzing the corresponding data time-frequency resource position indicated by the control message, and when finding that the data time-frequency resource positions indicated by a plurality of received control messages corresponding to different data messages are completely or partially overlapped, considering that the resource positions are collided;
d) and monitoring the V2X control message, analyzing the corresponding data time-frequency resource position indicated by the control message, and calculating the time-frequency resource positions used by the first transmission and the non-first transmission of the control message and the data message in the period and the non-transmission of the control message and the data message in the period according to the transmission periodicity and a frequency hopping formula, wherein if any known occupied control or data resource position is found to be repeated or partially repeated with the control or data resource position, the resource position is considered to have conflict.
The warning measure of the V2X node for conflict or busy comprises any combination of the following:
a) after detecting a conflict or a busy situation locally, the node sends an alarm message in a broadcasting or multicasting or unicasting mode to inform other nodes in a communication range;
b) after receiving the alarm message sent by other nodes, the node forwards the alarm message in a broadcast or multicast or unicast mode;
c) and after the node locally detects conflict or busy or receives the alarm message sent by other nodes, the node sends the alarm message to the eNodeB or the scheduling node.
The content carried by the alarm message in the V2X system includes any combination of the following:
a) alarm types including resource pool busy and transmission resource conflict;
b) identity identification of the conflict node;
c) a busy resource pool identity appears;
d) a conflicting resource location;
e) conflict service identity and/or type identification;
f) a conflict level or busy level for identifying a severity of the conflict or busy; may be calculated by any combination of the received energy level of the resource or resource pool, the received energy threshold, the number of colliding nodes or colliding services, and the received energy level of each colliding node/service.
The transmission resource or resource pool location used by the alert message in the V2X system includes any combination of the following:
a) using an alarm resource pool which is the same as or partially the same as the control resource pool and/or the data resource pool;
b) using an alarm resource pool orthogonal to the control resource pool and/or the data resource pool;
c) calculating the resource position of the alarm resource pool according to the positions of the control resource pool and/or the data resource pool;
d) the alarm resource pool uses a plurality of time-frequency resources which are continuous or discontinuous periodically;
e) configuring an initial resource position of an alarm resource pool, and deducing a subsequent resource position according to a preconfigured formula;
f) the node randomly selects alarm resources in the alarm resource pool;
g) the node selects an alarm resource in the alarm resource pool according to the received energy;
h) the node uses a warning resource position which is mapped according to any combination of conditions such as node ID, node type, node subordinate group, service type, service ID, warning type (busy/conflict), warning message transmission mode (broadcast/unicast), warning resource (pool) position, busy level and the like and is preset in the warning resource pool;
i) the node uses the resource position distributed/pre-configured by the eNodeB or the scheduling node in the alarm resource pool;
j) and the node calculates the position of the alarm resource according to the collision/busy position in the alarm resource pool.
The collision avoidance mechanism after the node receives the alarm message comprises the following arbitrary combination:
a) the node judges whether to reselect a resource pool and/or transmission resources used by the service according to the conflict related information declared in the alarm message;
b) the eNodeB or the scheduling node judges whether to reallocate transmission resources or a transmission resource pool used by the conflict node according to the conflict related information declared in the alarm message;
c) the eNodeB or the scheduling node sends an alarm message and informs the relevant nodes of the conflict/busy condition; the eNodeB carries the judgment on whether the transmission resources and/or the resource pool are reselected and used by the node or the related node automatically judges whether the resources and/or the resource pool are reselected or not in the notification message;
d) the node judges whether to forward the alarm message according to the conflict related information declared in the alarm message, judges whether the forwarding mode is broadcast or unicast, and judges a unicast forwarding target node;
e) the node reselects a resource pool and/or transmission resources used by the service;
f) the eNodeB or the scheduling node reallocates the transmission resources or the transmission resource pool used by the conflict node and informs the scheduling result to the conflict node.
i. The parameters for the reselection judgment comprise the following arbitrary combinations: the alarm message is broadcast or unicast, conflict/busy grade, conflict/busy resource pool identity identification, conflict/busy resource position, conflict/busy related node identity identification, conflict/busy service identity and/or type identification and local corresponding information of the node;
the method of determination comprises any combination of:
1. sorting the conditions according to the priority and comparing the conditions in sequence;
2. giving corresponding weights to the conditions, summing the weights of all or part of the conditions, and comparing the summed total values;
3. using a pseudo-random algorithm based on the above conditions;
example one
The ad hoc network node topology employed in this embodiment is shown in figure 3.
The UE3 monitors a V2X control resource pool and a data resource pool, records the receiving energy level of each transmission resource, finds that the average receiving energy level of the data resource pool #1 is higher than a threshold value configured for the resource pool by a node high level, considers that the resource pool is busy, and calculates the busy level according to the average receiving energy and the threshold value of the resource pool;
the UE3 sends an alarm message to the eNodeB to declare that the resource pool is busy and carries the identity and the busy level of the busy resource pool; the alarm message uses an alarm resource pool orthogonal to the data resource pool, and the resource pool position and the transmission resource position used in the resource pool are pre-configured by the eNodeB;
the eNodeB receives the warning message and judges that part of the nodes are needed to reselect the resource pool according to the busy level; the nodes scheduled by the eNodeB to the data resource pool #1 comprise the UE1 and the UE2, the UE1 is judged to have higher priority than the UE2 according to the node identity, and the UE2 is scheduled to another data resource pool #2 to transmit V2X service.
Example two
The ad hoc network node topology employed in this embodiment is shown in figure 4.
The UE3 monitors a V2X control resource pool and a data resource pool, records the receiving energy level of each transmission resource, finds that the receiving energy level of the transmission resource # A2 in the data resource pool #1 is higher than a threshold value corresponding to the type of the pre-configured resource pool, considers that a conflict occurs on the transmission resource block, and calculates a busy level according to the receiving energy level and the threshold value;
UE3 broadcasts and sends an alarm message, declares a transmission conflict and carries a conflict resource position and a conflict level; the alarm message uses an alarm resource pool which is completely the same as the data resource pool, and the resource position used by the alarm message is calculated according to the conflict position;
the UE1,2 receives the alarm message of the UE3, the UE1 broadcasts the forwarding alarm message, and the UE4 receives the alarm message forwarded by the UE 1;
the UEs 1,2,4 all have traffic to send on transmission resource # a2, and perform collision avoidance determination: the judgment method is pseudo-random after the weight addition of the alarm message type-conflict service type { conflict node ID, conflict service ID };
the warning message received by the UE1,2,4 is a broadcast message, and whether reselection is needed is not determined;
the service type sent by the UE1,2 on # A2 is an important service, and whether reselection is carried out is not determined; the service type sent by the UE4 on the # A2 is a common service, and transmission resources are reselected;
the UE1 and 2 respectively calculates the weight sum as 1a +1b and 2a +2b according to the local node ID and the service ID on the # A2, respectively uses the sum value to carry out a pseudo-random algorithm, the UE1 inputs 1a +1b in the pseudo-random algorithm, the obtained result is 0, and the resource reselection is carried out; the UE2 pseudo-random algorithm inputs 2a +2b, which results in a 1, and no resource reselection is performed.
Example three
The ad hoc network node topology employed in this embodiment is shown in figure 5.
The UE3 monitors the V2X control resource pool, analyzes the data resource position indicated in the received V2X control message and to be used by the corresponding data message, finds that both the UEs 1 and 2 will use the transmission resource # A3 in the data resource pool #1 to transmit the V2X data message, namely to collide at # A3, and calculates the busy level according to the number of collision nodes;
the UE3 judges that the single node reselects resources according to the busy level, judges that the weights of the { conflict node ID and the conflict service ID } are added, the weight adding result of the UE1 is higher, and the UE3 judges that the UE2 reselects;
the UE3 unicast-sends an alarm message to the UE2, declares a transmission conflict and carries a conflict resource position and a conflict level; the alarm message uses an alarm resource pool which is a subset of the data resource pool, a series of resource positions corresponding to the pre-configured unicast alarm message are used in the alarm resource pool, and the resource positions used by the alarm message are randomly selected;
and the UE2 receives the alarm message sent by the UE1, and judges to reselect the resource according to the fact that the alarm message is unicast.
The embodiment of notifying the conflict or the resource pool is busy by using the alarm information in the V2X communication system is provided by the above embodiment, so that the conflict sensing process of the V2X system is more reliable and more immediate, and the interference avoidance is triggered at the conflict node as soon as possible, so as to improve the system performance.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A method for processing resources, comprising:
the V2X node learns that resource conflict occurs or the resource is busy;
and the V2X node sends an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or resources are busy.
2. The method of claim 1, wherein the learning of resource conflict or resource busy by the V2X node comprises:
the V2X node detects that the sending resource conflicts or the resources are busy; or,
and after the V2X node receives the alarm messages sent by other nodes, determining that resource conflict occurs or the resources are busy according to the received alarm messages.
3. The method of claim 2, wherein the V2X node detecting a transmission resource conflict or a busy resource comprises:
the V2X node monitors a V2X control resource pool and a data resource pool, records the received energy level of each transmission resource, and determines that the resource pool with abnormal energy level is busy; wherein the capability level anomaly comprises at least one of: the lowest received energy is outside a first predetermined range, the average received energy is outside a second predetermined range, and the highest received energy is outside a third predetermined range;
the V2X node monitors a V2X control resource pool and a data resource pool, records the receiving energy level of each transmission resource, and determines that the resource conflict occurs in the transmission resource block of which the receiving energy level is outside a fourth preset range;
the V2X node listens to a V2X control message, analyzes the data time frequency domain resource positions indicated by the V2X control message, and considers that resource collision occurs at the overlapped resource positions when the data time frequency domain resource positions indicated by a plurality of received V2X control messages are completely overlapped or partially overlapped;
the V2X node listens to the V2X control message, analyzes the data time-frequency domain resource position indicated by the V2X control message, calculates the time-frequency domain resource positions used by the first transmission, the non-first transmission and the non-current period transmission of the V2X control message and the data message according to the transmission periodicity and the frequency hopping formula, and considers that resource conflict occurs when any known occupied control or data resource position is repeated or partially repeated with the known occupied control or data resource position.
4. The method of claim 3, wherein the first, second, third and fourth predetermined ranges are the same or different, and wherein the setting of the first, second, third and/or fourth predetermined ranges comprises at least one of:
the base station or the scheduling node is configured, calculated according to service attributes, calculated according to resource pool types, and exclusive to the resource pool.
5. The method of claim 1, wherein the V2X node sending the alert message comprises at least one of:
the V2X node sends the alarm message to other nodes in the communication range in a unicast, multicast or broadcast mode;
and the V2X node sends the warning message to a base station or a scheduling node.
6. The method of claim 1, wherein the alarm message carrying at least one of the following includes:
an alarm type for indicating that the resource pool is busy or that the transmission resources conflict;
identity of the conflicting node;
a busy resource pool identity appears;
a conflicting resource location;
conflict service identity identification and/or type identification;
a conflict level or busy level to indicate the degree of conflict or busy.
7. The method of claim 6, wherein the conflict level or the busy level is calculated by at least one of:
a received energy level of a resource or resource pool, a received energy range, a number of colliding nodes or colliding traffic, a received energy level per colliding node or per colliding traffic.
8. The method of claim 1, wherein the resource location used by the alert message comprises at least one of:
using an alarm resource pool which is the same as or partially the same as the control resource pool and/or the data resource pool;
using an alarm resource pool orthogonal to the control resource pool and/or the data resource pool;
calculating the resource position of the alarm resource pool according to the positions of the control resource pool and/or the data resource pool;
the alarm resource pool uses a plurality of time-frequency resources which are continuous or discontinuous periodically;
configuring an initial resource position of an alarm resource pool, and deducing a subsequent resource position according to a preconfigured formula;
the V2X node randomly selects an alarm resource in an alarm resource pool;
the V2X node selects an alarm resource in an alarm resource pool according to the received energy;
the V2X node uses a warning resource position which is mapped according to at least one of a node ID, a node type, a node subordinate group, a service type, a service ID, a warning type, a warning message transmission mode, a warning resource or a resource pool position and a busy level and is pre-configured in the warning resource pool;
the V2X node uses the resource position allocated or pre-configured by the base station or the scheduling node in the alarm resource pool;
and the V2X node calculates the resource position used by the alarm in the alarm resource pool according to the conflict/busy position.
9. The method of claim 1, further comprising: performing conflict or busy evasion according to at least one of the following conditions:
the base station or the scheduling node judges whether to reallocate transmission resources or a transmission resource pool used by the conflict node;
the base station or the scheduling node judges whether the conflict node should initiate the reselection of resources and/or a resource pool by itself;
the base station or the scheduling node sends an alarm message to inform related nodes to judge whether to reselect resources and/or a resource pool;
the V2X node judges whether to forward the warning message, judges whether the forwarding mode is broadcast or unicast, and judges the unicast forwarding target node;
the V2X node judges whether to reselect a resource pool and/or transmission resource used by the service;
the base station or the scheduling node reallocates transmission resources or transmission resource pools used by the conflict nodes and informs the scheduling results to the conflict nodes;
the base station or the scheduling node informs the conflict node to initiate the reselection of resources and/or a resource pool by itself;
the V2X node reselects the resource pool and/or transmission resource used by the traffic.
10. The method of claim 9, wherein the parameters upon which the conditions are based include at least one of:
the alarm message is sent in a unicast or broadcast mode, the conflict or busy level, the identity of the conflict or busy resource pool, the location of the conflict or busy resource, the identity of the conflict or busy node, the identity of the conflict or busy service type, and the local information of the V2X node.
11. The method of claim 10, wherein the condition is determined according to the parameter by at least one of:
sorting the parameters according to the priority and comparing the parameters in sequence;
giving weight to the parameters, calculating the weighted sum and then comparing;
a pseudo-random algorithm based on the parameters is used.
12. A resource processing apparatus located in a V2X node, comprising:
the acquisition module is used for acquiring resource conflict or resource busy;
and the sending module is used for sending an alarm message, wherein the alarm message is used for indicating that resource conflict occurs or resources are busy.
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