CN108024283B - Resource pool allocation method and device - Google Patents
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- H04W28/02—Traffic management, e.g. flow control or congestion control
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Abstract
The invention provides a resource pool allocation method and a resource pool allocation device, which can improve the resource utilization rate of a system and avoid unnecessary collision. The method comprises the following steps: a first user acquires a first resource pool configuration signaling, wherein the first resource pool configuration signaling comprises: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool; the first user configures a first user sending resource pool according to the configuration signaling of the first user sending resource pool, and the first user sending resource pool comprises: the resource allocation method comprises the steps of a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of a first user sending resource pool and a second user sending resource pool configured by a second user sending resource pool configuration signaling.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a resource pool allocation method and device for vehicle users and pedestrian-like users in V2X.
Background
V2X (Vehicle-to-Everything) technique: the V2X technology, i.e., the vehicle network technology, establishes a new automobile technology and a future development direction of intelligent transportation by integrating the global positioning system navigation technology, the vehicle-to-outside information exchange technology, and the wireless communication technology. The V2X technology currently includes two main business models, V2V (Vehicle-to-Vehicle), i.e., Vehicle-to-Vehicle communication, and V2P (Vehicle-to-pedestrian communication).
V2V (Vehicle-to-Vehicle) technique: in the inter-vehicle communication technology, the position, the vehicle speed, the form direction and other V2V services can be interactively injected between vehicles through base station forwarding or in a D2D (Device-to-Device) direct communication mode, so that a driver is helped to plan a driving route or avoid potential risks, and the driving experience and the road safety are improved.
The model for communication between two vehicles in V2V technology defined by 3GPP is shown in fig. 1 and 2.
As shown in fig. 1, the direct communication between vehicles is implemented based on D2D technology, specifically, the UE uses the network configured or pre-configured sending resource pool to send V2V traffic on the sidelink (sl) link, and at the same time, the UE uses the network configured or pre-configured receiving resource pool to listen and receive V2V traffic sent by nearby UEs on the sidelink (sl) link. In conventional D2D communication, a transmitting UE randomly selects a transmission resource in its transmission resource pool. As shown in fig. 2, in V2V, since the number of users and the traffic volume are much larger than those of the conventional D2D communication, if the mechanism of randomly selecting transmission resources is continued, the probability that two or more different UEs select the same transmission resources is high, which may cause transmission collision and failure to affect the overall traffic performance. In order to solve this problem, a sending resource selection mechanism based on sending is introduced in the V2V technology, that is, when performing resource selection, a UE needs to detect a sending resource pool and exclude resources already occupied by other UEs, so as to avoid sending collision once.
V2P (Vehicle-to-Pedestrian) technique: in the V2P technology, information is exchanged between vehicles and pedestrians to ensure pedestrian and road safety, and since the requirement of pedestrian UE (second user) for power saving is higher, the 3GPP conference decides that the second user supports both random transmission resource selection and partial sending-based transmission resource selection (some of the second users only support random transmission resource selection). The partial sending means that such second user is limited to a part of resources (available) in the sending resource pool configured to the partial sending second user, so that the power consumption of the second user in detecting the sending resources is greatly reduced.
In the V2X technology, a vehicular UE (first user) may avoid a transmission collision by avoiding resources already occupied by other UEs using a sending-based transmission resource selection method, but there is a category of pedestrian UEs (second users) that may randomly select a transmission resource and cannot avoid a transmission collision with other UEs. When the first user coexists with such a second user, the existing transmission resource pool partitioning manner of the RAN2 at present has a problem that the resource utilization rate is low or the transmission collision cannot be avoided.
Therefore, a new resource pool partitioning method for the first user and the second user is needed to avoid unnecessary collision while improving the resource utilization of the system.
Disclosure of Invention
In view of the foregoing technical problems, embodiments of the present invention provide a method and an apparatus for allocating a resource pool, which can improve the resource utilization of a system and avoid unnecessary collisions.
According to a first aspect of the embodiments of the present invention, there is provided a resource pool configuration method, including:
a first user acquires a first resource pool configuration signaling, wherein the first resource pool configuration signaling comprises: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool;
the first user configures a first user sending resource pool according to the configuration signaling of the first user sending resource pool, and the first user sending resource pool comprises: the resource allocation method comprises the steps of a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of a first user sending resource pool and a second user sending resource pool configured by a second user sending resource pool configuration signaling.
Optionally, the configuration signaling of the first user transmission resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user transmission resource pool and the second user transmission resource pool.
Optionally, the method further comprises:
and if the CBR measured value of the non-overlapping part resource pool of the first user is smaller than a first threshold value, the first user only selects a sending resource in the non-overlapping part resource pool of the first user.
Optionally, the method further comprises:
and if the CBR measured value of the non-overlapping part of the first user is greater than a first threshold value and the CBR measured value of the overlapping part of the first user is less than a second threshold value, the first user selects and sends resources in the overlapping part of the first user and the non-overlapping part of the first user at the same time.
Optionally, the first threshold value and the second threshold value are configured by a network or preconfigured in a protocol.
Optionally, the first user is a vehicle user, and the second user is a pedestrian-like user performing transmission resource selection by using a random resource selection method.
According to a second aspect of the embodiments of the present invention, there is also provided a resource pool configuration method, including:
the third user obtains a second resource pool configuration signaling;
the third user configures a third user sending resource pool according to a second resource pool configuration signaling sent by the third user;
if the third user is a pedestrian-like user using a random resource selection mode to perform resource selection, the second resource pool configuration signaling includes: randomly selecting a configuration signaling of a resource pool;
if the third user uses a part of sensing resource selection mode to send the pedestrian-like user with resource selection, the second resource pool configuration signaling comprises: the configuration signaling of the resource pool is selected randomly and the configuration signaling of the resource pool is selected and sent partially in an induction mode.
Optionally, the method further comprises:
and if the third user is a pedestrian-like user for selecting the sending resources by using a random resource selection mode, the sending resource pool of the third user is a random selection resource pool, and the third user randomly selects the sending resources in the random selection resource pool.
Optionally, the method further comprises:
and if the third user uses a part of sensing resource selection mode to select the sending resource, and the third user does not support CBR measurement, the third user selects the sending resource in the part of sensing selection sending resource pool.
Optionally, the method further comprises:
if the residual electric quantity of the third user is larger than a third threshold value, the third user supports partial induction and selection of sending resources, and the third user selects the sending resources based on a partial induction and selection of sending resource mode;
and if the residual electric quantity of the third user is less than a third threshold value, the third user selects the sending resource from the random selection resource pool based on the random selection sending resource mode.
Alternatively, if the third user support part senses the selection of a transmission resource,
the third user selecting a transmission resource based on a partial sensing selection transmission resource pattern, comprising:
and if the CBR measured value of the partial induction selection sending resource pool is greater than the fourth threshold value and the CBR measured value of the partial induction selection sending resource pool is less than the fifth threshold value, the third user selects sending resources in the overlapped part of the resource pool and the partial induction selection sending resource pool at the same time, and the overlapped part of the resource pool is the overlapped part of the partial induction selection sending resource pool and the random selection resource pool.
Optionally, the third user selects a transmission resource based on a partial sensing selection transmission resource pattern, further comprising:
and if the CBR measured value of the partial induction selection sending resource pool is smaller than a fourth threshold value, the third user selects sending resources in the partial induction selection sending resource pool only.
Optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources pool is shared with or partially overlaps with a first user resource pool, wherein the first user is a vehicle user.
Optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources for each third user is configured as a part of the third user transmission resource pool.
According to a fourth aspect of the embodiments of the present invention, there is provided a resource pool configuration apparatus, applied to a first user, including:
a first obtaining module, configured to obtain a first resource pool configuration signaling, where the first resource pool configuration signaling includes: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool;
a first configuration module, configured to configure a first user sending resource pool according to a configuration signaling of the first user sending resource pool, where the first user sending resource pool includes: the resource allocation method comprises the steps of a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of a first user sending resource pool and a second user sending resource pool configured by a second user sending resource pool configuration signaling.
Optionally, the configuration signaling of the first user transmission resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user transmission resource pool and the second user transmission resource pool.
Optionally, the apparatus further comprises:
and the first selection module is used for selecting the sending resource only in the non-overlapping part resource pool of the first user if the CBR measured value of the non-overlapping part resource pool of the first user is smaller than a first threshold value.
Optionally, the apparatus further comprises:
and the second selection module is used for selecting and sending the resources from the first user overlapping part resource pool and the first user non-overlapping part resource pool if the CBR measured value of the first user non-overlapping part resource pool is greater than the first threshold value and the CBR measured value of the first user overlapping part resource pool is less than the second threshold value.
Optionally, the first threshold value and the second threshold value are configured by a network or preconfigured in a protocol.
Optionally, the first user is a vehicle user, and the second user is a pedestrian-like user performing transmission resource selection by using a random resource selection method.
According to a fourth aspect of the embodiments of the present invention, there is provided a resource pool configuration apparatus, applied to a third user, including:
a second obtaining module, configured to obtain a second resource pool configuration signaling,
the second configuration module is used for configuring a third user sending resource pool according to the second resource pool configuration signaling;
if the third user is a pedestrian-like user using a random resource selection mode to perform resource selection, the second resource pool configuration signaling includes: randomly selecting a configuration signaling of a resource pool;
if the third user uses a part of sensing resource selection mode to send the pedestrian-like user with resource selection, the second resource pool configuration signaling comprises: the configuration signaling of the resource pool is selected randomly and the configuration signaling of the resource pool is selected and sent partially in an induction mode.
Optionally, the apparatus further comprises:
and the third selection module is used for selecting the sending resources randomly in the randomly selected resource pool if the third user is a pedestrian-like user who uses a random resource selection mode to select the sending resources, and the third user sending resource pool is the randomly selected resource pool.
Optionally, the apparatus further comprises:
and the fourth selection module is used for selecting sending resources in the partial sensing selection sending resource pool if the third user uses a partial sensing resource selection mode to select sending resource-like pedestrian users and the third user does not support CBR measurement.
Optionally, the apparatus further comprises:
a fifth selecting module, configured to select a sending resource based on a partial sensing selection sending resource mode if the remaining power of the third user is greater than a third threshold and the third user supports partial sensing selection sending resources;
a sixth selecting module, configured to select, if the remaining power of the third user is less than a third threshold, a transmission resource from a randomly selected resource pool based on a randomly selected transmission resource pattern.
Alternatively, if the third user support part senses the selection of a transmission resource,
the fifth selection module is further to:
and if the CBR measured value of the partial induction selective transmission resource pool is greater than the fourth threshold value and the CBR measured value of the partial induction selective transmission resource pool is less than the fifth threshold value, selecting transmission resources in an overlapped part of the resource pool and a partial induction selective transmission resource pool, wherein the overlapped part of the resource pool is the overlapped part of the partial induction selective transmission resource pool and the random selection resource pool.
Optionally, the fifth selecting module is further configured to:
and selecting the transmission resource in the partial induction selective transmission resource pool only if the CBR measured value of the partial induction selective transmission resource pool is smaller than a fourth threshold value.
Optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources pool is shared with or partially overlaps with a first user resource pool, wherein the first user is a vehicle user.
Optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources for each third user is configured as a part of the third user transmission resource pool.
One of the above technical solutions has the following advantages or beneficial effects: by configuring resource pools of different users (such as vehicle users V-UE and pedestrian-like users P-UE in a V2X system, the P-UE can be random P-UE or partial sending P-UE), different users can select sending resources in corresponding resource pools according to a determined rule, and resource utilization rate and sending success rate can be ensured under different service congestion.
Drawings
FIG. 1 is a schematic diagram of a model of direct vehicle communication in V2V technology;
fig. 2 is a schematic diagram of a model of forwarding through a base station in the V2V technology;
FIG. 3 is a flowchart illustrating a resource pool allocation method according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a resource pool allocation method according to a second embodiment of the present invention;
FIG. 5 is a diagram illustrating a resource pool partitioning model according to a third embodiment of the present invention;
FIG. 6 is a second schematic diagram of a resource pool partitioning model according to a third embodiment of the present invention;
FIG. 7 is a third exemplary diagram of a resource pool partitioning model according to a third embodiment of the present invention;
fig. 8 is a block diagram of a resource pool allocation apparatus according to a fourth embodiment of the present invention;
fig. 9 is a block diagram of a resource pool allocation apparatus in the fifth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may 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 disclosure to those skilled in the art.
As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a system, apparatus, device, method, or computer program product. Thus, embodiments of the invention may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.
Example one
Referring to fig. 3, a resource pool configuration method is shown, which includes the following specific steps:
it should be noted that the first user may be a V-UE in a V2X system, the second user may be a P-UE in a V2X system, and the P-UE may be a random P-UE, where the random P-UE refers to: the method is the P-UE which uses a random resource selection mode to select the transmission resources.
With reference to fig. 5, the first resource pool configuration signaling obtained in step 301 includes: and the configuration signaling of the overlapped part resource pool, the non-overlapped part resource pool and the random selection resource pool of the V-UE.
In this embodiment, optionally, the configuration signaling of the first user sending resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user sending resource pool and the second user sending resource pool.
In this embodiment, optionally, the method further includes:
and if the CBR measured value of the non-overlapping part resource pool of the first user is smaller than a first threshold value, the first user only selects a sending resource in the non-overlapping part resource pool of the first user.
In this embodiment, optionally, the method further includes:
and if the CBR measured value of the non-overlapping part of the first user is greater than a first threshold value and the CBR measured value of the overlapping part of the first user is less than a second threshold value, the first user selects and sends resources in the overlapping part of the first user and the non-overlapping part of the first user at the same time.
In this embodiment, optionally, the first threshold value and the second threshold value are configured by a network or preconfigured in a protocol.
In this embodiment, resource pools of a first user (e.g., a V-UE in a V2X system) and a second user (e.g., a P-UE in a V2X system, which may be random P-UE) are configured, so that the first user or the second user can select a transmission resource in the corresponding resource pool according to a determined rule, and resource utilization and transmission success rate can be guaranteed under different traffic congestions.
Example two
Referring to fig. 4, a resource pool configuration method is shown, which includes the following specific steps:
if the third user is a pedestrian-like user using a random resource selection mode to perform resource selection, the second resource pool configuration signaling includes: randomly selecting a configuration signaling of a resource pool;
if the third user uses a part of sensing resource selection mode to send the pedestrian-like user with resource selection, the second resource pool configuration signaling comprises: the configuration signaling of the resource pool is selected randomly and the configuration signaling of the resource pool is selected and sent partially in an induction mode.
It should be noted that, the third user may be a P-UE in the V2X system, where the P-UE may be a random P-UE or a partial sending P-UE, where the random P-UE refers to: for a P-UE using a random resource selection method for transmission resource selection, a partial transmitting P-UE refers to: P-UE for resource selection based on partial sensing (partial sensing). Pedestrian-like users may include pedestrian users and other similar users, such as non-automotive users and the like.
In this embodiment, optionally, the method further includes:
and if the third user is a pedestrian-like user for selecting the sending resources by using a random resource selection mode, the sending resource pool of the third user is a random selection resource pool, and the third user randomly selects the sending resources in the random selection resource pool.
In this embodiment, optionally, the method further includes:
and if the third user uses a part of sensing resource selection mode to select the sending resource, and the third user does not support CBR measurement, the third user selects the sending resource in the part of sensing selection sending resource pool.
In this embodiment, optionally, the method further includes:
if the residual electric quantity of the third user is larger than a third threshold value, the third user supports partial induction and selection of sending resources, and the third user selects the sending resources based on a partial induction and selection of sending resource mode;
and if the residual electric quantity of the third user is less than a third threshold value, the third user selects the sending resource from the random selection resource pool based on the random selection sending resource mode.
In this embodiment, optionally, if the third user support part selects the transmission resource inductively,
the third user selecting a transmission resource based on a partial sensing selection transmission resource pattern, comprising:
and if the CBR measured value of the partial induction selection sending resource pool is greater than the fourth threshold value and the CBR measured value of the partial induction selection sending resource pool is less than the fifth threshold value, the third user selects sending resources in the overlapped part of the resource pool and the partial induction selection sending resource pool at the same time, and the overlapped part of the resource pool is the overlapped part of the partial induction selection sending resource pool and the random selection resource pool.
The first user may be a V-UE in a V2X system.
In this embodiment, optionally, the third user selects the transmission resource based on the partial sensing selection transmission resource mode, further including:
and if the CBR measured value of the partial sensing selection sending resource pool is smaller than a fourth threshold value, the third user only selects sending resources in the non-overlapping partial resource pool of the first user.
It should be noted that the fourth threshold and the fifth threshold may be configured by the network side or preconfigured in the protocol.
In this embodiment, optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resource pool is shared with or partially overlaps with a first user resource pool, where the first user is a V-UE in the V2X system, for example, the third user is a partial transmitting P-UE, and the first user is a V-UE.
In this embodiment, optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources of each second user is configured as a part of the third user transmission resource pool.
In this embodiment, by configuring a resource pool of a third user (for example, a P-UE in a V2X system, which may be a random P-UE or a partial sending P-UE), the first user or the second user can select a sending resource in the corresponding resource pool according to a determined rule, and the resource utilization rate and the sending success rate can be ensured under different service congestions.
EXAMPLE III
In the present embodiment, a resource pool partitioning model is provided for V-UEs existing in the V2X system, P-UEs that randomly select transmission resources, and P-UEs that select transmission resources based on partial sensing (partial sensing).
For convenience of description, hereinafter:
random P-UE: selecting a sending resource for the P-UE by using a random resource selection mode;
partial sending P-UE: a P-UE for resource selection based on partial sensing (partial sensing);
randomly selecting a resource pool: a transmission resource pool in which transmission resources can be selected for the P-UE using a random resource selection approach.
Referring to fig. 5, which illustrates a resource pool partitioning model, a V-UE transmitting a resource pool includes: a transmission resource pool of an overlapping portion and a transmission resource pool of a non-overlapping portion.
It should be noted that, if the V-UE only uses the non-overlapping transmission resource pool, the transmission resources of the V-UE and the random P-UE are independent from each other, so that the transmission of the random P-UE and the transmission of the V-UE can be completely prevented from colliding. When the traffic of the V-UE is severely congested in the non-overlapping part of the transmission resources, the transmission success rate is decreased because no occupied available resources are sensed. If the random P-UE randomly selected resource pool is not seriously congested, the V-UE can be configured to simultaneously sense the non-overlapped part of the sending resource pool and the overlapped part of the sending resource pool, so that the V-UE can obtain more available sending resources, the sending success rate of the V-UE is improved, and the sending success rate of the system is also improved.
In the current V2X technology, if a certain V-UE does not sense an unoccupied resource and is allowed to transmit on the occupied resource, the transmission of the V-UE collides with the transmissions of other V-UEs, and the collision may cause data of one or more V-UEs using the same transmission resource to be unsuccessfully received. In the above solution of this embodiment, the V-UE may sense that there is no occupied resource in the randomly selected resource pool of the less congested P-UE.
In the overlapped part of the transmission resource pool, the sensing mechanism of the V-UE can ensure to avoid the transmission resource occupied by other P-UE and V-UE. However, random P-UE randomly selects the transmission resource, and has a certain probability to select the resource occupied by V-UE for transmission, thereby causing collision, and the probability of collision is related to the congestion degree of the resource pool in the overlapped part. Therefore, when the transmission resource pool of the overlapping part reaches a certain threshold, the V-UE is not allowed to use the overlapping part resource pool.
Currently, the V-UE learns the congestion degree of the sending resource pool through CBR measurement, which may reflect the resource occupation ratio, and a higher CBR measurement value indicates a more serious congestion degree. Therefore, whether the V-UE needs to use the overlapped part of the transmission resource pool can be controlled by setting a reasonable CBR measurement value threshold, which is as follows:
a) and when the CBR measured value of the non-overlapping resource pool is greater than a threshold A and the CBR measured value of the overlapping part resource pool is less than a threshold B, the V-UE simultaneously senses the transmitting resource pool of the overlapping part and the transmitting resource pool of the non-overlapping part to select transmitting resources.
b) And when the CBR measured value of the non-overlapping resource pool is smaller than a threshold A, the V-UE only senses the non-overlapping part of the resource pool to select the transmission resource, and the overlapping part of the transmission resource pool is not allowed to be used.
c) random P-UE always uses a pool of randomly selected resources.
In a specific application, the network can determine the optimal values of the threshold A and the threshold B of the CBR measurement value and configure the optimal values to the V-UE in the network by evaluating the transmission success rate of the V-UE under different CBR measurement values when only the V-UE exists in the transmission resource pool and simultaneously evaluating the transmission success rate of the V-UE and random P-UE under different CBR measurement values when the V-UE and random P-UE exist in the transmission resource pool.
For the transmission resource pool of the partial sending P-UE:
for the P-UE adopting the partial sending resource selection mechanism, the occupied resources can be avoided when the sending resources are selected, but if the partial sending P-UE is configured to carry out CBR measurement, the power consumption of the P-UE is increased. Therefore, the partial sending P-UE can be configured to share the sending resource pool of the V-UE, and the resource utilization rate can be maximized.
In practical applications, the power consumption of the P-UE is increased by performing CBR measurement considering that the P-UE has a high requirement on power saving, and the P-UE does not necessarily support the CBR measurement function. If the partial sensing P-UE supports CBR measurement, the same mechanism as the V-UE described above can be used to determine whether the resources in the overlapped part of the transmission resource pool can be used. If the P-UE does not support the CBR measurement, the partial sending P-UE does not support the CBR measurement, and only the non-overlapping partial resource pool is allowed to be used.
The resource selection management method for the partial sending P-UE supporting the CBR measurement comprises the following steps:
a) and when the CBR measured value of the non-overlapping resource pool is greater than the threshold C and the CBR measured value of the overlapping part resource pool is less than the threshold B, the partial sending P-UE simultaneously uses the overlapping part and the non-overlapping part to send the resource pool.
b) When the CBR measured value of the non-overlapping resource pool is smaller than the threshold C, the partial sending p-UE can only use the non-overlapping part resource pool to select the sending resource, and the overlapping part is not allowed to be used to send the resource pool.
The resource selection management method for the partial sending P-UE which does not support CBR measurement comprises the following steps:
a) the resource pool is transmitted using the non-overlapping portion.
In this embodiment, the P-UE may select a transmission resource pool based on the remaining power.
Compared with random resource selection, a partial sensing (partial sensing) mechanism consumes more power, and since the power of the P-UE is limited, when the remaining power is relatively low, the power consumption of the V2P service should be reduced to ensure that other services of the P-UE can be performed normally. The sending resource pool used by the P-UE may be controlled by configuring the power threshold, and for the P-UE that may randomly select the sending resource or select the sending resource based on the partial sending, specifically:
and when the residual power of the P-UE is larger than the threshold value, the P-UE supporting the partial sending performs sending resource selection based on the partial sending.
And when the residual power of the P-UE is less than the threshold value, the P-UE randomly selects a sending resource from the resource pool.
It should be noted that, when dividing the resource pool, the network may determine the non-overlapping part of the transmission resource pool of the V-UE with reference to the historical average traffic of the V-UE in the system, and determine the size of the overlapping part of the transmission resource pool of the V-UE through the historical burst traffic of the V-UE. Meanwhile, since the use conditions of the overlapped and non-overlapped part transmission resources are different, the transmission resource pool configuration signaling of V2X needs to indicate the overlapped and non-overlapped part transmission resource pool configurations respectively
In this embodiment, the V2X resource pool configuration signaling includes the overlapping and non-overlapping part resource pools of the V-UE, and randomly selects the resource pool configuration.
Configuration of V-UE for acquiring overlapped part and non-overlapped part resource pools of V-UE and randomly selecting resource pool
The P-UE supporting both random resource selection and resource selection based on partial sending needs to acquire the configuration of the non-overlapping part resource pool and the random selection resource pool of the V-UE.
P-UEs that only support random resource selection need to acquire the configuration of the randomly selected resource pool.
The following is described in connection with two specific scenarios.
Scene one: when the CBR measurement value of the overlapped part resource pool is smaller than the threshold value a, the distribution of the transmission resource pools of the V-UE and the P-UE is shown in fig. 6.
1) The V2X resource pool configuration signaling or V2X resource pool pre-configuration information sent by the network comprises the configuration information of the overlapped part of the transmission resource pool, the non-overlapped part of the transmission resource pool and the random selection resource pool of the P-UE.
3) And the random P-UE selects the sending resource in the random selection resource pool.
3) And the Partial sending P-UE selects the sending resource in the non-overlapped part of the sending resource pool.
4) The V-UE first uses the non-overlapping part of the transmission resource pool and performs CBR measurements on the overlapping and non-overlapping part of the resource pool.
5) In this scenario, the measurement value of CBR measurement performed by the V-UE on the transmission resource pool in the non-overlapping portion is smaller than the threshold a, which indicates that the traffic load and congestion in the transmission resource pool in the non-overlapping portion are relatively low, and the V-UE does not need to use the resource pool in the overlapping portion.
Scene two: the distribution of the transmission resource pools of V-UE and P-UE when the CBR measurement value of the overlapping part resource pool is greater than the threshold a and the CBR measurement value of the non-overlapping part resource pool is less than the threshold B, see fig. 7.
1) The V2X resource pool configuration signaling or V2X resource pool pre-configuration information sent by the network comprises the configuration information of the overlapped part of the transmission resource pool, the non-overlapped part of the transmission resource pool and the random selection resource pool of the P-UE.
2) And the random P-UE selects the sending resource in the random selection resource pool.
3) And the Partial sending P-UE selects the sending resource in the non-overlapping part sending resource pool.
4) The V-UE first transmits the resource pool using the non-overlapping portion and performs CBR measurements on the overlapping and non-overlapping portion resource pools.
5) In this scenario, the measurement value obtained by performing CBR measurement on the transmission resource pool in the non-overlapping portion by the V-UE is greater than the threshold a, which indicates that the traffic load and the congestion in the transmission resource pool in the non-overlapping portion are higher. Meanwhile, the measurement value obtained by the V-UE performing CBR measurement on the transmission resource pool of the overlapping part is smaller than the threshold A, which shows that the traffic load and the congestion in the transmission resource pool of the non-overlapping part are lower. At this time, the V-UE may select transmission resources using the overlapping part and non-overlapping part resource pools simultaneously to improve the transmission success rate.
Example four
Referring to fig. 8, a resource pool configuration apparatus is shown, the apparatus 800 comprising:
a first obtaining module 801, configured to obtain a first resource pool configuration signaling, where the first resource pool configuration signaling includes: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool;
a first configuring module 802, configured to configure a first user sending resource pool according to a configuration signaling of the first user sending resource pool, where the first user sending resource pool includes: the resource allocation method comprises the steps of a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of a first user sending resource pool and a second user sending resource pool configured by a second user sending resource pool configuration signaling.
In this embodiment, optionally, the configuration signaling of the first user sending resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user sending resource pool and the second user sending resource pool.
In this embodiment, optionally, the apparatus further includes:
and the first selection module is used for selecting the sending resource only in the non-overlapping part resource pool of the first user if the CBR measured value of the non-overlapping part resource pool of the first user is smaller than a first threshold value.
In this embodiment, optionally, the apparatus further includes:
and the second selection module is used for selecting and sending the resources from the first user overlapping part resource pool and the first user non-overlapping part resource pool if the CBR measured value of the first user non-overlapping part resource pool is greater than the first threshold value and the CBR measured value of the first user overlapping part resource pool is less than the second threshold value.
In this embodiment, optionally, the first threshold value and the second threshold value are configured by a network or preconfigured in a protocol.
In this embodiment, resource pools of a first user (e.g., a V-UE in a V2X system) and a second user (e.g., a P-UE in a V2X system, which may be random P-UE or partial sending P-UE) are configured, so that the first user or the second user can select a sending resource in the corresponding resource pool according to a determined rule, and resource utilization and sending success rate can be guaranteed under different traffic congestions.
EXAMPLE five
Referring to fig. 9, a resource pool configuration apparatus, applied to a third user, is shown, where the apparatus 900 includes:
a second obtaining module 901, configured to obtain a second resource pool configuration signaling,
a second configuring module 902, configured to configure a third user sending resource pool according to the second resource pool configuration signaling;
if the third user is a pedestrian-like user using a random resource selection mode to perform resource selection, the third resource pool configuration signaling includes: randomly selecting a configuration signaling of a resource pool;
if the third user uses a part of sensing resource selection mode to send the pedestrian-like user with resource selection, the second resource pool configuration signaling comprises: the configuration signaling of the resource pool is selected randomly and the configuration signaling of the resource pool is selected and sent partially in an induction mode.
In this embodiment, optionally, the apparatus further includes:
and the third selection module is used for selecting the sending resources randomly in the randomly selected resource pool if the third user is a pedestrian-like user who uses a random resource selection mode to select the sending resources, and the third user sending resource pool is the randomly selected resource pool.
In this embodiment, optionally, the apparatus further includes:
a fourth selecting module, configured to select a sending resource in the partial sensing selection sending resource pool if the second user is a user that selects a sending resource for partial sensing and the second user does not support CBR measurement.
In this embodiment, optionally, the apparatus further includes:
a fifth selecting module, configured to select a sending resource based on a partial sensing selection sending resource mode if the remaining power of the third user is greater than a third threshold and the third user supports partial sensing selection sending resources;
a sixth selecting module, configured to select, if the remaining power of the third user is less than a third threshold, a transmission resource from a randomly selected resource pool based on a randomly selected transmission resource pattern.
In this embodiment, optionally, if the third user support part selects the transmission resource inductively,
the fifth selection module is further to:
and if the CBR measured value of the partial induction selective transmission resource pool is greater than the fourth threshold value and the CBR measured value of the partial induction selective transmission resource pool is less than the fifth threshold value, selecting transmission resources in an overlapped part of the resource pool and a partial induction selective transmission resource pool, wherein the overlapped part of the resource pool is the overlapped part of the partial induction selective transmission resource pool and the random selection resource pool.
In this embodiment, optionally, the fifth selecting module is further configured to:
and selecting the transmission resource in the partial induction selective transmission resource pool only if the CBR measured value of the partial induction selective transmission resource pool is smaller than a fourth threshold value.
In this embodiment, optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resource pool is shared with or partially overlaps with a resource pool of a first user, where the first user is a V-UE in the V2X system, for example, the third user is a partial transmitting P-UE, and the first user is a V-UE.
In this embodiment, optionally, if the third user supports partial inductive selection of transmission resources, the partial inductive selection of transmission resources of each third user is configured as a part of the transmission resource pool of the third user.
In this embodiment, by configuring the resource pool of the third user (for example, a P-UE in the V2X system, which may be random-UE or partial sending P-UE), the third user can select a sending resource in the corresponding resource pool according to a determined rule, and the resource utilization rate and the sending success rate can be ensured under different service congestions.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus 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.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the preferred embodiments of the present invention have been described, it should be understood that modifications and adaptations to those embodiments may occur to one skilled in the art without departing from the principles of the present invention and are within the scope of the present invention.
Claims (6)
1. A resource pool configuration method is characterized by comprising the following steps:
a first user acquires a first resource pool configuration signaling, wherein the first resource pool configuration signaling comprises: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool;
the first user configures a first user sending resource pool according to the configuration signaling of the first user sending resource pool, and the first user sending resource pool comprises: a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of the first user sending resource pool and a second user sending resource pool configured by the second user sending resource pool configuration signaling;
the first user is a vehicle user, and the second user is a pedestrian-like user for selecting sending resources by using a random resource selection mode;
if the CBR measured value of the first user non-overlapping part resource pool is smaller than a first threshold value, the first user only selects a sending resource in the first user non-overlapping part resource pool;
if the CBR measured value of the first user non-overlapping part resource pool is larger than a first threshold value and the CBR measured value of the first user overlapping part resource pool is smaller than a second threshold value, the first user selects and sends resources in the first user overlapping part resource pool and the first user non-overlapping part resource pool at the same time;
the first threshold and the second threshold are optimal values determined by the network side through evaluating the sending success rate of the first user under different CBR measured values when only the first user exists in the sending resource pool, and the sending success rate of the first user under different CBR measured values when the first user and the second user exist in the sending resource pool at the same time, and are configured to the first user in the network.
2. The method of claim 1, wherein the signaling of the configuration of the first user transmission resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user transmission resource pool and the second user transmission resource pool.
3. The method of claim 1, wherein the first threshold value and the second threshold value are configured by a network or are pre-configured in a protocol.
4. A resource pool configuration device applied to a first user, comprising:
a first obtaining module, configured to obtain a first resource pool configuration signaling, where the first resource pool configuration signaling includes: a first user sends a configuration signaling of a resource pool and a second user sends the configuration signaling of the resource pool;
a first configuration module, configured to configure a first user sending resource pool according to a configuration signaling of the first user sending resource pool, where the first user sending resource pool includes: a first user overlapping part resource pool and a first user non-overlapping part resource pool, wherein the first user overlapping part resource pool is an overlapping part of the first user sending resource pool and a second user sending resource pool configured by the second user sending resource pool configuration signaling;
the first user is a vehicle user, and the second user is a pedestrian-like user for selecting sending resources by using a random resource selection mode;
the device further comprises:
a first selection module, configured to select a transmission resource only in the non-overlapping part of the resource pool of the first user if the CBR measurement value of the non-overlapping part of the resource pool of the first user is smaller than a first threshold value;
a second selecting module, configured to select a sending resource from the first user overlapping part resource pool and the first user non-overlapping part resource pool simultaneously if the CBR measurement value of the first user non-overlapping part resource pool is greater than a first threshold value and the CBR measurement value of the first user overlapping part resource pool is less than a second threshold value;
the first threshold and the second threshold are optimal values determined by the network side through evaluating the sending success rate of the first user under different CBR measured values when only the first user exists in the sending resource pool, and the sending success rate of the first user under different CBR measured values when the first user and the second user exist in the sending resource pool at the same time, and are configured to the first user in the network.
5. The apparatus of claim 4, wherein the configuration signaling of the first user transmission resource pool is used to indicate the configuration of the overlapping part resource pool and the non-overlapping part resource pool of the first user transmission resource pool and the second user transmission resource pool.
6. The apparatus of claim 4, wherein the first threshold value and the second threshold value are configured by a network or preconfigured in a protocol.
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| CN113905439A (en) * | 2016-12-29 | 2022-01-07 | 华为技术有限公司 | Resource selection method and terminal |
| CN109379750A (en) * | 2017-08-04 | 2019-02-22 | 电信科学技术研究院 | A kind of method and apparatus using resource |
| CN110830952B (en) * | 2018-08-10 | 2023-03-28 | 中兴通讯股份有限公司 | Resource allocation method and device for direct link in Internet of vehicles |
| CN112055326B (en) * | 2019-06-05 | 2022-04-29 | 华为技术有限公司 | Data sending method and device for Internet of vehicles |
| CN112653542B (en) * | 2019-10-12 | 2022-05-24 | 华为技术有限公司 | Communication method and device |
| WO2022073455A1 (en) * | 2020-10-09 | 2022-04-14 | Huizhou Tcl Cloud Internet Corporation Technology Co., Ltd. | Reducing power consumption in direct wireless communications systems |
| CN115918202A (en) * | 2020-10-13 | 2023-04-04 | Oppo广东移动通信有限公司 | Wireless communication method, terminal and network equipment |
| CN114598404B (en) * | 2020-12-03 | 2023-06-23 | 华为技术有限公司 | Resource sensing method and device |
| WO2023184481A1 (en) * | 2022-04-01 | 2023-10-05 | Lenovo (Beijing) Limited | Methods and apparatuses for congestion control and power control |
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