CN112788622B - Configuration method, device and equipment of sensing window - Google Patents
Configuration method, device and equipment of sensing window Download PDFInfo
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Abstract
The embodiment of the invention discloses a configuration method, a device and equipment of a perception window, wherein the method comprises the following steps: acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service; and configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node. The embodiment of the invention can flexibly set the duration of the sensing window according to the service attribute information, can reduce the sensing window cache and the node receiving cache, and reduces the processing complexity of the node. In addition, the embodiment of the invention can enable or disable the RSSI measurement according to the specific service attribute information, can reduce unnecessary measurement processing and reduce the processing complexity of the node under the condition that the RSSI smoothing processing gain is limited.
Description
Technical Field
The invention relates to the technical field of Internet of vehicles, in particular to a configuration method, a configuration device and configuration equipment of a sensing window.
Background
In the aspect of communication among nodes of the internet of vehicles, IEEE 802.11p adopts a Carrier Sense Multiple Access Collision Avoidance (CSMA/CA) mechanism to perform channel Access, and after Carrier Sense is busy, Access is delayed in a random backoff manner to avoid resource Collision, but the mechanism does not consider the Sense mechanism to estimate resource occupation, and cannot Sense the transmission occupation of services such as periodic basic road safety, and therefore reliability is low.
The LTE-V2X technology based on the long term evolution system researched by the 3GPP R14/R15 version considers the periodic service characteristics of basic road safety application, adopts a resource perception and semi-persistent scheduling mechanism, well matches the periodic service characteristics of the basic road safety application, and supports the reliability requirement of service.
With the development of the internet of vehicles, the types of services are more and more. In the studied NR-V2X based on the 5G new air interface, there is diversity in the supported enhanced application services, for example, basic road security applications have the characteristics of periodicity, predictable service packet size, and the like, and for example, some event-triggered services have the characteristics of aperiodicity, difficult prediction of service packet size, and the like. In NR-V2X, the delay requirement and reliability requirement of the service are more severe than the requirement supported by LTE-V2X. The setting of the sensing window is the key of a sensing mechanism, and the appropriate sensing window is set, so that the processing of various types of services in NR-V2X can be effectively supported, and the processing complexity is reduced.
Disclosure of Invention
At least one embodiment of the present invention provides a method, an apparatus, and a device for configuring a sensing window, which can reduce a sensing window cache and a node receiving cache, and reduce processing complexity of a node.
In a first aspect, an embodiment of the present invention provides a method for configuring a sensing window, including:
acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
and configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
With reference to the first aspect, in some implementation manners of the first aspect, the step of configuring, according to service attribute information supported by a receiving resource pool of the node, a duration of a sensing window of the receiving resource pool includes:
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises aperiodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum duration of all initial retransmission information caches of preset service data packets.
With reference to the first aspect, in some implementation manners of the first aspect, the step of configuring, according to service attribute information supported by a receiving resource pool of the node, a duration of a sensing window of the receiving resource pool includes:
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises the aperiodic service, configuring the duration of a sensing window of the receiving resource pool according to the minimum time delay of the aperiodic service and the maximum duration of all initial retransmission information caches of preset service data packets.
With reference to the first aspect, in some implementation manners of the first aspect, the step of configuring, according to service attribute information supported by a receiving resource pool of the node, a duration of a sensing window of the receiving resource pool includes:
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum service period in the periodic services.
With reference to the first aspect, in some implementation manners of the first aspect, the step of configuring, according to service attribute information supported by a receiving resource pool of the node, a duration of a sensing window of the receiving resource pool includes:
under the condition that service attribute information supported by a receiving resource pool of the node comprises periodic service and aperiodic service, determining the maximum service period in the periodic service and determining the maximum duration of a sensing sub-window of the aperiodic service;
and configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
With reference to the first aspect, in certain implementations of the first aspect, the step of determining a maximum duration of a sensing sub-window of the aperiodic traffic includes:
Determining the maximum duration of a sensing sub-window of the aperiodic service according to the maximum duration of all initial retransmission information caches of a preset service data packet; or,
and determining the maximum time length of the sensing sub-window of the node according to the minimum time delay of the aperiodic service and the preset maximum time length of all initial retransmission information caches of the service data packet.
With reference to the first aspect, in certain implementations of the first aspect, the method further includes:
and configuring whether Received Signal Strength Indication (RSSI) measurement is enabled or not in a sensing window of the receiving resource pool according to service attribute information supported by the receiving resource pool of the node and/or Received high-level signaling.
With reference to the first aspect, in some implementations of the first aspect, the step of configuring whether received signal strength indication, RSSI, measurement is enabled within a sensing window of the reception resource pool includes:
configuring, in the case that service attribute information supported by a reception resource pool of the node includes only aperiodic service, not to enable RSSI measurement within a sensing window of the reception resource pool;
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling;
And under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
In a second aspect, an embodiment of the present invention further provides a device for configuring a sensing window, including:
the attribute acquisition module is used for acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
and the window configuration module is used for configuring the duration of the sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
With reference to the second aspect, in some implementation manners of the second aspect, the window configuration module is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes an aperiodic service, a duration of a sensing window of the receiving resource pool according to a preset maximum duration of all initial retransmission information buffers of a service data packet.
With reference to the second aspect, in some implementation manners of the second aspect, the window configuration module is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes an aperiodic service, a duration of a sensing window of the receiving resource pool according to a minimum time delay of the aperiodic service and a preset maximum duration of all initial retransmission information buffers of a service data packet.
With reference to the second aspect, in some implementation manners of the second aspect, the window configuration module is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes a periodic service, a duration of a sensing window of the receiving resource pool according to a maximum service period in the periodic service.
With reference to the second aspect, in some implementations of the second aspect, the window configuration module is further configured to determine, when the service attribute information supported by the receiving resource pool of the node includes a periodic service and an aperiodic service, a maximum service period in the periodic service, and determine a maximum duration of a sensing sub-window of the aperiodic service; and configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
With reference to the second aspect, in some implementations of the second aspect, the window configuration module includes:
the sub-window determining module is used for determining the maximum duration of the sensing sub-window of the aperiodic service according to the maximum duration of all initial retransmission information caches of the preset service data packet; or, determining the maximum duration of the sensing sub-window of the node according to the minimum time delay of the aperiodic service and the preset maximum duration of all initial retransmission information caches of the service data packet.
With reference to the second aspect, in some implementations of the second aspect, the configuring apparatus further includes:
and the measurement configuration module is used for configuring whether the RSSI measurement is enabled in a sensing window of the receiving resource pool or not according to the service attribute information supported by the receiving resource pool of the node and/or the received high-level signaling.
With reference to the second aspect, in certain implementations of the second aspect, the measurement configuration module is further configured to:
configuring, in the case that service attribute information supported by a reception resource pool of the node includes only aperiodic service, not to enable RSSI measurement within a sensing window of the reception resource pool;
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling;
and under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
In a third aspect, an embodiment of the present invention further provides a node, including: a memory, a processor, a transceiver, and a program stored on the memory and executable on the processor;
The processor implements the following steps when executing the program:
acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
and configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
In a fourth aspect, the present application provides a computer storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method as described above.
The beneficial effects of the embodiment of the application at least comprise:
the embodiment of the invention can flexibly set the duration of the sensing window according to the service attribute information, can reduce the sensing window cache and the node receiving cache, and reduces the processing complexity of the node. In addition, the embodiment of the invention can enable or disable the RSSI measurement according to the specific service attribute information, can reduce unnecessary measurement processing and reduce the processing complexity of the node under the condition that the RSSI smoothing processing gain is limited.
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Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a timing diagram of prior art cognitive and semi-persistent scheduling;
fig. 2 is a flowchart of a configuration method of a sensing window according to an embodiment of the present invention;
FIGS. 3-7 are exemplary diagrams of sensing window configurations provided by embodiments of the present invention;
fig. 8 is a structural diagram of a configuration apparatus of a sensing window according to an embodiment of the present invention;
fig. 9 is a structural diagram of a node according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Fig. 1 shows a timing diagram of an example of sensing and semi-persistent scheduling in LTE-V2X, where the sensing window is usually set to a fixed length, such as 1000 ms. As can be seen from fig. 1, in the R14/R15 version, only the sensing window length of the longest service period of the periodic service is considered, and a fixed sensing window length is set, which has the problems of large sensing window cache, large terminal node receiving cache, and high processing complexity. In addition, it has been found through research that the gain of the RSSI smoothing process for energy is limited and the complexity is high by using a fixed 1000ms period within the sensing window.
In order to solve at least one of the above problems, embodiments of the present invention provide a method for configuring a sensing window, which can reduce a sensing window cache and a node receiving cache by configuring a suitable sensing window for a node, and reduce the processing complexity of the node. As shown in fig. 2, a method for configuring a sensing window provided in an embodiment of the present invention includes:
In the embodiment of the present invention, the resource pool is used as the granularity to configure the sensing window, and in step 21, the service attribute information supported by the receiving resource pool is obtained. Here, the periodic traffic may include various basic road security application-type traffic, and data thereof is generally transmitted with a fixed transmission period. The aperiodic service may include various event-triggered services whose data transmission has an aperiodic characteristic without a fixed transmission period. The service attribute information may specifically include a type of service, such as a periodic service or an aperiodic service, and may further include a period value of the periodic service, such as 10ms, 20ms, and the like.
In addition, the embodiment of the present invention may configure the supported service type in the receiving resource pool in advance, and if the service type is a periodic service, may also configure the service period supported by the receiving resource pool, for example, configure the supported service period in the 3GPP R14/R15 version; in case of aperiodic traffic, the traffic period may be configured to be 0.
Here, the duration of the sensing window of the receiving resource pool in the embodiment of the present invention is configured according to the service attribute information supported by the receiving resource pool, so that an implementation manner of using a sensing window with a fixed duration in the prior art is changed, the duration of the sensing window can be flexibly set according to the service attribute information, the sensing window cache and the node receiving cache can be reduced, and the processing complexity of the node is reduced.
Specifically, in step 22, according to different service attribute information, the embodiment of the present invention provides various implementation manners for configuring the duration of the sensing window of the receiving resource pool, which will be described below.
1) The service attribute information supported by the receiving resource pool of the node only comprises aperiodic service
As an implementation manner, in a case that service attribute information supported by a receiving resource pool of the node only includes an aperiodic service, the embodiment of the present invention may configure the duration of a sensing window of the receiving resource pool according to a preset maximum duration of all initial retransmission information caches of a service data packet, for example, directly configure the duration of the sensing window as the maximum duration of all initial retransmission information caches of the service data packet.
When the initial transmission or partial retransmission of a service packet is sent in the sensing window and partial retransmission is sent in the resource selection window, if the time-frequency resource information occupied by the retransmission in the resource selection window can be obtained through the reservation information of the initial transmission or partial retransmission, the resource occupied by the retransmission can be eliminated in the resource selection window, and the resource collision is avoided.
For example, according to the design of 3GPP R14/R15, the maximum duration of all the initial retransmission information buffers for receiving a service packet is 16ms, i.e. the Hybrid Automatic Repeat reQuest Delay bucket (HDB) is 16 ms. In the embodiment of the invention, when the receiving resource pool only supports the aperiodic service, the duration of the sensing window can be configured according to the HDB, for example, the maximum duration of the sensing window is configured to be the HDB.
As another implementation manner, in a case that service attribute information supported by a receiving resource pool of the node only includes an aperiodic service, the embodiment of the present invention may configure the duration of a sensing window of the receiving resource pool according to a minimum time delay of the aperiodic service and a preset maximum duration of all initial retransmission information buffers of a service data packet. Specifically, the difference between the minimum delay of the HDB and the aperiodic traffic may be calculated, and the duration of the sensing window may be configured according to the difference. For example, when the receiving resource pool of the node supports a plurality of aperiodic services, the minimum delay is selected to perform the calculation of the difference according to the requirements of the aperiodic services on the service delay.
The realization method can set a more proper sensing window size when the non-periodic service is a low-delay service, and further reduce the duration of the sensing window, thereby reducing the cache of the sensing window. The low-latency service may be a service with a service latency requirement lower than a preset threshold.
2) The service attribute information supported by the receiving resource pool of the node only comprises periodic service
And under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum service period in the periodic services. When the receiving resource pool of the node supports a plurality of periodic services, the largest service period may be selected from the periodic services, and the duration of the sensing window of the receiving resource pool may be configured. For example, when the service periods of the plurality of periodic services are 20ms, 50ms and 100ms, respectively, the duration of the sensing window of the receiving resource pool is configured according to 100 ms.
3) The service attribute information supported by the receiving resource pool of the node comprises periodic service and non-periodic service
In the case that the service attribute information supported by the receiving resource pool of the node includes periodic service and aperiodic service, the maximum service period in the periodic service may be determined, and the maximum duration of the sensing sub-window of the aperiodic service may be determined. And then, configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
Wherein, the determination of the maximum duration of the sensing sub-window of the aperiodic service may refer to the implementation manner that the sensing window is configured when the service attribute information supported by the receiving resource pool of the node only includes the aperiodic service in item 1:
for example, the maximum duration of the sensing sub-window of the aperiodic service may be determined according to the preset maximum duration of all initial retransmission information buffers of the service data packet. Specifically, the maximum duration of all the initial retransmission information buffers of the service data packet may be used as the duration of the sensing sub-window.
For another example, the maximum duration of the sensing sub-window of the node may be determined according to the minimum delay of the aperiodic service and a preset maximum duration of all initial retransmission information buffers of the service data packet. Specifically, the difference between the minimum delay of the HDB and the aperiodic service may be calculated, and the duration of the sensing sub-window is obtained according to the difference.
Through the above steps, the embodiments of the present invention provide various implementation manners for configuring the duration of the sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node under different types of services. It can be seen from the above implementation manner that, in the embodiments of the present invention, the duration of the sensing window is flexibly configured according to the specific service attribute information, and since the sensing window with a fixed length is no longer used, the embodiments of the present invention can reduce the sensing window cache and the node receiving cache according to the specific service attribute information, and reduce the processing complexity of the node.
It should be noted that, herein, the duration of the sensing window of the receiving resource pool is configured according to a certain target duration, and may be set as the target duration, or may be fine-tuned on the basis of the target duration, for example, a certain preset duration adjustment value is increased or decreased, and then the duration of the sensing window is set as the adjusted target duration. The embodiment of the present invention is not particularly limited to this.
In addition, the method according to the embodiment of the present invention may further configure whether RSSI measurement is enabled in a sensing window of the receiving resource pool according to service attribute information supported by the receiving resource pool of the node and/or a received high-level signaling. The higher layer signaling is signaling sent by a protocol layer above the physical layer of the node. In particular, the method comprises the following steps of,
A) and configuring no RSSI measurement in a sensing window of the receiving resource pool under the condition that the service attribute information supported by the receiving resource pool of the node only comprises aperiodic service.
B) And under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
C) And under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
Through the steps, the embodiment of the invention can enable or disable the RSSI measurement according to the specific service attribute information, reduce unnecessary measurement processing and reduce the processing complexity of the node under the condition that the RSSI smooth processing gain is limited.
The above describes the configuration method of the sensing window according to the embodiment of the present invention in detail. Several examples of the configuration method of the sensing window to which the embodiments of the present invention are applied will be further provided in conjunction with the accompanying drawings.
In the following example, supported service types are configured in advance in a receiving resource pool of a node, and if the service types are periodic services, a service period supported by the receiving resource pool may also be configured, for example, a service period supported in the 3GPP R14/R15 version is configured; in case of aperiodic traffic, the traffic period may be configured to be 0.
Example 1: sensing window setting when receiving resource pool only supports aperiodic service
And the node searches the service period configuration of the receiving resource pool, and if the service period configuration of the resource pool is 0, the node only supports the non-periodic service.
When the initial transmission or partial retransmission of a service packet is sent in the sensing window, and partial retransmission is sent in the resource selection window. At this time, it is necessary to set an appropriate sensing window duration according to the HDB. Assuming that the HDB duration is 16ms, that is, the maximum duration of all the initial retransmission information buffers receiving one service packet is 16ms, the maximum sensing window can be set to the HDB in the receiving resource pool, which is corresponding to 16 ms. As shown in fig. 3, since the receiving resource pool only has aperiodic traffic, the sensing window duration is set to HDB, corresponding to 16 ms.
Example 2: sensing window setting when receiving resource pool only supports aperiodic low-delay service
And the node searches the service period configuration of the receiving resource pool, and if the service period configuration of the resource pool is 0, the node only supports the non-periodic service.
When the initial transmission or partial retransmission of a service packet is sent in the sensing window, and partial retransmission is sent in the resource selection window. The HDB duration is assumed to be 16ms, that is, the maximum duration of all the initial retransmission information buffers receiving a service packet is 16ms, and the minimum service delay requirement of the service is assumed to be 10 ms. Then the sensing window is set to HDB-minimum traffic delay 16-10-6 ms maximum in the receiving resource pool. As shown in fig. 4, since the receiving resource pool has only aperiodic traffic, the sensing window duration is set to 6 ms.
Example 3: perception window setting when receiving resource pool only supports periodic service
The node assumes that the resource pool is configured with a plurality of service periods and supports only non-periodic services by searching the service period configuration of the receiving resource pool. The largest service period of the periodic service can be found from the configured service periods, and at this time, the sensing window duration is set as the largest service period supported by the resource pool configuration. As shown in fig. 5, assuming that the receiving resource pool only sets the service periods of the 3 supported periodic services to 20ms, 50ms and 100ms, the maximum service period is 100ms according to the service period information of the configured periodic service, and therefore, the sensing window duration is set to be the maximum service period, that is, 100ms, supported by the resource pool configuration.
Example 4: sensing window setting when receiving resource pool supports periodic service and aperiodic service
The node searches the service period configuration of the receiving resource pool:
if the periodic service exists, searching the maximum service period of the periodic service configured and supported in the resource pool, assuming to be P1;
if the aperiodic service exists, determining the maximum duration P2 of the sensing sub-window length of the aperiodic service supported by the current system, wherein the determination manner of P2 can refer to example 1 or example 2;
The sensing window duration for calculating the resource pool for mixing periodic traffic and non-periodic traffic is set to the maximum of P1 and P2: max { P1, P2}
As shown in fig. 6, assuming the receiving resource pool, the service periods of 3 supported periodic services are set to 20ms, 50ms and 100ms, and at the same time, aperiodic services are also supported. And according to the configured service period information of the periodic service, the maximum service period is 100 ms. Referring also to example 1, the perceived sub-window length (HDB) of the aperiodic traffic was determined to be 16 ms. Then, comparing the service period duration of the maximum periodic service with the HDB, the larger value is 100ms of the maximum service period of the periodic service, and therefore the sensing window duration of the hybrid service is 100 ms.
As shown in fig. 7, assuming the receiving resource pool, the service periods of 2 supported periodic services are set to 10ms and 15ms, and at the same time, aperiodic services are also supported. And according to the configured service period information of the periodic service, the maximum service period is 15 ms. Referring also to example 1, the maximum duration (HDB) of the sensing sub-window length of the aperiodic traffic can be determined to be 16 ms. Then, comparing the service period duration of the maximum periodic service with the maximum duration of the sensing window length of the non-periodic service, the larger value is the maximum duration 16ms of the sensing window length of the non-periodic service, and therefore the sensing window duration of the mixed service is 16 ms.
The above describes a configuration method of a sensing window according to an embodiment of the present invention. An apparatus for carrying out the above method is further provided below.
Referring to fig. 8, an embodiment of the present invention provides a configuration apparatus 80 for a sensing window, which may be applied to a node device in an internet of vehicles, as shown in fig. 8, where the configuration apparatus 80 for a sensing window includes:
an attribute obtaining module 81, configured to obtain service attribute information supported by a receiving resource pool of a node, where the service attribute information includes attribute information of a periodic service and/or an aperiodic service;
a window configuration module 82, configured to configure a duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
Through the above modules, the configuration device 80 of the sensing window according to the embodiment of the present invention can flexibly configure the duration of the sensing window according to the service attribute information, and can reduce the sensing window cache and the node receiving cache, and reduce the processing complexity of the node.
Optionally, the window configuring module 82 is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes an aperiodic service, a duration of a sensing window of the receiving resource pool according to a preset maximum duration of all primary retransmission information caches of a service data packet.
Optionally, the window configuring module 82 is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes the aperiodic service, a duration of a sensing window of the receiving resource pool according to a minimum time delay of the aperiodic service and a preset maximum duration of all initial retransmission information buffers of the service data packet.
Optionally, the window configuring module 82 is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes a periodic service, a duration of a sensing window of the receiving resource pool according to a maximum service period in the periodic service.
Optionally, the window configuration module 82 is further configured to, when the service attribute information supported by the receiving resource pool of the node includes a periodic service and an aperiodic service, determine a maximum service period in the periodic service, and determine a maximum duration of a sensing sub-window of the aperiodic service; and configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
Optionally, the window configuration module includes the following modules (not shown in the figure):
the sub-window determining module is used for determining the maximum duration of the sensing sub-window of the aperiodic service according to the maximum duration of all initial retransmission information caches of the preset service data packet; or, determining the maximum duration of the sensing sub-window of the node according to the minimum time delay of the aperiodic service and the preset maximum duration of all initial retransmission information caches of the service data packet.
Optionally, the configuration device further includes the following modules (not shown in the figure):
and the measurement configuration module is used for configuring whether the RSSI measurement is enabled in a sensing window of the receiving resource pool or not according to the service attribute information supported by the receiving resource pool of the node and/or the received high-level signaling.
Optionally, the measurement configuration module is further configured to:
configuring, in the case that service attribute information supported by a reception resource pool of the node includes only aperiodic service, not to enable RSSI measurement within a sensing window of the reception resource pool;
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling;
And under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
Referring to fig. 9, an embodiment of the present invention provides a node 900 in a vehicle networking system, where the node 900 includes: a processor 901, a transceiver 902, a memory 903, a user interface 904, and a bus interface.
In this embodiment of the present invention, the node 900 further includes: a program stored on the memory 903 and operable on the processor 901.
The processor 901 implements the following steps when executing the program:
acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
and configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
It can be understood that, in the embodiment of the present invention, when being executed by the processor 901, the computer program can implement each process of the configuration method embodiment of the sensing window shown in fig. 2, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.
In fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 901 and various circuits of memory represented by memory 903 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 902 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 904 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 901 is responsible for managing a bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, the program when executed by a processor implementing the steps of:
Acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
and configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node.
When being executed by a processor, the program can realize all the implementation modes in the configuration method of the sensing window, and can achieve the same technical effect, and the repeated description is omitted here for avoiding the repetition.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. A method for configuring a sensing window, comprising:
acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
configuring the duration of a sensing window of a receiving resource pool according to service attribute information supported by the receiving resource pool of the node, wherein the configuration comprises the following steps:
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises aperiodic service, configuring the duration of a sensing window of the receiving resource pool according to the minimum time delay of the aperiodic service and the maximum duration of all initial retransmission information caches of preset service data packets;
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum service period in the periodic services.
2. The method of claim 1, wherein the step of configuring the duration of the sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node further comprises:
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises aperiodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum duration of all initial retransmission information caches of preset service data packets.
3. The method of claim 1, wherein the step of configuring the duration of the sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node comprises:
under the condition that service attribute information supported by a receiving resource pool of the node comprises periodic service and aperiodic service, determining the maximum service period in the periodic service and determining the maximum duration of a sensing sub-window of the aperiodic service;
and configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
4. The method of claim 3, wherein the step of determining the maximum duration of the sensing sub-window for aperiodic traffic comprises:
determining the maximum duration of a sensing sub-window of the aperiodic service according to the maximum duration of all initial retransmission information caches of a preset service data packet; or,
and determining the maximum time length of the sensing sub-window of the node according to the minimum time delay of the aperiodic service and the preset maximum time length of all initial retransmission information caches of the service data packet.
5. The method of any of claims 1 to 4, further comprising:
and configuring whether the Received Signal Strength Indication (RSSI) measurement is enabled in a sensing window of the receiving resource pool or not according to the service attribute information supported by the receiving resource pool of the node and/or the received high-level signaling.
6. The method of claim 5, wherein the step of configuring whether Received Signal Strength Indication (RSSI) measurements are enabled within a sensing window of the receive resource pool comprises:
configuring, in the case that service attribute information supported by a reception resource pool of the node includes only aperiodic service, not to enable RSSI measurement within a sensing window of the reception resource pool;
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling;
and under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
7. An apparatus for configuring a sensing window, comprising:
the attribute acquisition module is used for acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
the window configuration module is used for configuring the duration of a sensing window of the receiving resource pool according to the service attribute information supported by the receiving resource pool of the node;
the window configuration module is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes an aperiodic service, a duration of a sensing window of the receiving resource pool according to a minimum time delay of the aperiodic service and a maximum duration of all initial retransmission information caches of a preset service data packet;
the window configuration module is further configured to configure, when the service attribute information supported by the receiving resource pool of the node only includes a periodic service, a duration of a sensing window of the receiving resource pool according to a maximum service period in the periodic service.
8. The apparatus of claim 7,
the window configuration module is further configured to configure the duration of the sensing window of the receiving resource pool according to the maximum duration of all initial retransmission information caches of a preset service data packet under the condition that service attribute information supported by the receiving resource pool of the node only includes aperiodic services.
9. The apparatus of claim 7,
the window configuration module is further configured to determine a maximum service period in the periodic service and determine a maximum duration of a sensing sub-window of the aperiodic service, when the service attribute information supported by the receiving resource pool of the node includes the periodic service and the aperiodic service; and configuring the duration of the sensing window of the receiving resource pool according to the larger of the maximum service period in the periodic service and the maximum duration of the sensing sub-window.
10. The apparatus of claim 9, wherein the window configuration module comprises:
the sub-window determining module is used for determining the maximum duration of the sensing sub-window of the aperiodic service according to the maximum duration of all initial retransmission information caches of the preset service data packet; or, determining the maximum duration of the sensing sub-window of the node according to the minimum time delay of the aperiodic service and the preset maximum duration of all initial retransmission information caches of the service data packet.
11. The apparatus of any of claims 7 to 10, further comprising:
And the measurement configuration module is used for configuring whether the RSSI measurement is enabled in a sensing window of the receiving resource pool or not according to the service attribute information supported by the receiving resource pool of the node and/or the received high-level signaling.
12. The apparatus of claim 11, wherein the measurement configuration module is further to:
configuring, in the case that service attribute information supported by a reception resource pool of the node includes only aperiodic service, not to enable RSSI measurement within a sensing window of the reception resource pool;
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling;
and under the condition that the service attribute information supported by the receiving resource pool of the node comprises periodic service and aperiodic service, configuring the enabling or disabling of RSSI measurement in a sensing window of the receiving resource pool according to the high-level signaling.
13. A node, comprising: a memory, a processor, a transceiver, and a program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,
The processor implements the following steps when executing the program:
acquiring service attribute information supported by a receiving resource pool of a node, wherein the service attribute information comprises attribute information of periodic service and/or aperiodic service;
configuring the duration of a sensing window of a receiving resource pool according to service attribute information supported by the receiving resource pool of the node, wherein the configuration comprises the following steps:
under the condition that the service attribute information supported by the receiving resource pool of the node only comprises aperiodic service, configuring the duration of a sensing window of the receiving resource pool according to the minimum time delay of the aperiodic service and the maximum duration of all initial retransmission information caches of preset service data packets;
and under the condition that the service attribute information supported by the receiving resource pool of the node only comprises periodic services, configuring the duration of a sensing window of the receiving resource pool according to the maximum service period in the periodic services.
14. A computer storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 6.
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| CN201911088092.2A CN112788622B (en) | 2019-11-08 | 2019-11-08 | Configuration method, device and equipment of sensing window |
| PCT/CN2020/101869 WO2021088402A1 (en) | 2019-11-08 | 2020-07-14 | Method for configuring sensing window, apparatus, and device |
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| CN115942273A (en) * | 2021-08-16 | 2023-04-07 | 大唐移动通信设备有限公司 | Resource sensing method, terminal and computer readable storage medium |
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