Resource Selection Method and Communication Device

Abstract

An embodiment of the present application provides a resource selection method and a communication device. During the secondary link resource selection process, a second electronic device instructs a first electronic device to select a reference resource for it through cooperative assistance information. After receiving the cooperative assistance information, the first electronic device selects a reference resource from the resource pools included in the first resource pool set and instructs the second electronic device, so that the second electronic device refers to these reference resources when selecting secondary link communication resources. By adopting this solution, the selection of secondary link communication resources is carried out by introducing user cooperation, ensuring that the second electronic device can select resources for secondary link communication and improving the reliability of secondary link communication.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a resource selection method and a communication device. Background Art

[0002] Vehicle-to-Everything (V2X) communication is a key technical direction of the 16th (Release 16, R16) version of the protocol. As an enhancement of Long Term Evolution (LTE) V2X, NR V2X is a key technical means to enable the Internet of Vehicles.

[0003] In V2X communication, V2X devices perform sidelink communication through a sidelink. For V2X communication, there are two resource allocation methods. The first method is the scheduled resource allocation method. In this method, the network device configures resources for sidelink communication for V2X devices. This method is mainly applied to mode 3 in LTE V2X communication and mode 1 in NR V2X communication. The second method is the perception-based resource selection method. This method does not require the network device to schedule resources. This method is mainly applied to mode 4 in LTE V2X communication and mode 2 in NR V2X communication. In the perception-based resource selection method, a V2X device receives a physical sidelink control channel (PSCCH) sent by other V2X devices within a resource sensing window, and determines the reserved resources of other V2X devices according to the PSCCH. Then, the reserved resources are excluded from the resource selection window, and resources for sidelink communication are selected from the remaining available resources. However, if the V2X device adopts a half-duplex mode, since the V2X device cannot simultaneously transmit and receive sidelink data, the V2X device cannot receive the PSCCH of other V2X devices when sending sidelink data, which in turn causes the V2X device to be unable to exclude the reserved resources of other V2X devices within the resource selection window. At this time, a solution for excluding all possible reserved resources is introduced. In this solution, when a V2X device sends sidelink data in a certain time slot within the resource sensing window, a set of time slots is obtained according to the time slot and all possible reservation periods of the reserved resources, and the time slots that fall within the resource selection window in this set of time slots are excluded from the reserved resources.

[0004] In the above solution for excluding all possible reserved resources, it is very likely that there are too few resources or even no available resources within the resource selection window, which in turn causes the V2X device to be unable to perform sidelink communication. Summary of the Invention

[0005] An embodiment of the present application provides a resource selection method and a communication device, which select sidelink communication resources by introducing cooperation between users, ensuring that the second electronic device can select resources for sidelink communication and improving the reliability of sidelink communication.

[0006] In a first aspect, an embodiment of the present application provides a resource selection method, including:

[0007] The first electronic device receives cooperation assistance information from the second electronic device, where the cooperation assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the first resource pool set. The first resource pool set includes at least one resource pool, and the reference resource is a resource for the second electronic device to refer to when selecting sidelink communication resources;

[0008] The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperation assistance information;

[0009] The first electronic device sends indication information to the second electronic device, where the indication information is used to indicate the reference resource.

[0010] In a feasible design, the first electronic device receiving the cooperation assistance information from the second electronic device includes:

[0011] The first electronic device receives the cooperation assistance information sent by the second electronic device on the communication resources included in the m-th resource pool, and the m-th resource pool is included in the first resource pool set.

[0012] In a feasible design, the first electronic device selecting the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperation assistance information includes:

[0013] The first electronic device selects the reference resource for the second electronic device from the m-th resource pool.

[0014] In a feasible design, the cooperation assistance information is used to indicate at least one resource pool, and the first electronic device selecting the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperation assistance information includes:

[0015] The first electronic device selects the reference resource for the second electronic device from the communication resources included in the at least one resource pool. The at least one resource pool is included in the first resource pool set and includes the m-th resource pool.

[0016] In a feasible design, the first electronic device sends indication information to the second electronic device, including:

[0017] The first electronic device sends the indication information to the second electronic device on the communication resources included in the nth resource pool, where the nth resource pool is included in the first resource pool set, and the reference resource is included in the nth resource pool.

[0018] In a feasible design, the first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperation assistance information, including:

[0019] The first electronic device determines a second resource pool set from the first resource pool set, where the cooperation assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set;

[0020] The first electronic device selects a reference resource for the second electronic device from the transmission resources included in the second resource pool set.

[0021] In a feasible design, the first electronic device receives cooperation assistance information from the second electronic device, including:

[0022] The first electronic device receives a secondary link control channel from the second electronic device, where the secondary link control channel is used to indicate the communication resources and transmission parameters of a secondary link data channel, and the secondary link data channel is used to carry the cooperation assistance information;

[0023] The first electronic device determines the secondary link data channel according to the communication resources and transmission parameters of the secondary link data channel;

[0024] The first electronic device receives the cooperation assistance information according to the secondary link data channel.

[0025] In a second aspect, an embodiment of the present application provides a resource selection method, including:

[0026] The second electronic device sends cooperation assistance information to the first electronic device, where the cooperation assistance information is used to indicate the first electronic device to select a reference resource for the second electronic device from the resource pools included in the first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource for the second electronic device to refer to when selecting secondary link communication resources;

[0027] The second electronic device receives indication information from the first electronic device, where the indication information is used to indicate the reference resource;

[0028] The second electronic device determines communication resources for sidelink communication according to the reference resource.

[0029] In a feasible design, the second electronic device sends cooperative assistance information to the first electronic device, including:

[0030] The second electronic device sends the cooperative assistance information to the first electronic device on the communication resources included in the m-th resource pool, where the m-th resource pool is included in the first resource pool set.

[0031] In a feasible design, the cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the second resource pool set, and the cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set.

[0032] In a feasible design, after the second electronic device receives the indication information from the first electronic device, it further includes:

[0033] When the indication information occupies the communication resources in the n-th resource pool, the second electronic device determines that the reference resource is included in the n-th resource pool, and the n-th resource pool is included in the first resource pool set.

[0034] In a feasible design, the second electronic device sends cooperative assistance information to the first electronic device, including:

[0035] The second electronic device sends a sidelink control channel to the first electronic device, where the sidelink control channel is used to indicate the communication resources and transmission parameters of the sidelink data channel, and the sidelink data channel is used to carry the cooperative assistance information;

[0036] The second electronic device sends the sidelink data channel on the communication resources indicated by the sidelink control channel.

[0037] In a third aspect, an embodiment of the present application provides a communication device, including:

[0038] A receiving unit, configured to receive cooperation assistance information from a second electronic device, where the cooperation assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from resource pools included in a first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource for the second electronic device to refer to when selecting secondary link communication resources;

[0039] A processing unit, configured to select the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperation assistance information;

[0040] A sending unit, configured to send indication information to the second electronic device, where the indication information is used to indicate the reference resource.

[0041] In a feasible design, the receiving unit is configured to receive the cooperation assistance information sent by the second electronic device on communication resources included in the m-th resource pool, and the m-th resource pool is included in the first resource pool set.

[0042] In a feasible design, the processing unit is configured to select the reference resource for the second electronic device from the m-th resource pool.

[0043] In a feasible design, the cooperation assistance information is used to indicate at least one resource pool, and the processing unit is configured to select the reference resource for the second electronic device from communication resources included in the at least one resource pool, the at least one resource pool is included in the first resource pool set, and the at least one resource pool includes the m-th resource pool.

[0044] In a feasible design, the sending unit is configured to send the indication information to the second electronic device on communication resources included in the n-th resource pool, the n-th resource pool is included in the first resource pool set, and the reference resource is included in the n-th resource pool.

[0045] In a feasible design, the processing unit is configured to determine a second resource pool set from the first resource pool set, and select a reference resource for the second electronic device from transmission resources included in the second resource pool set, where the cooperation assistance information includes at least one of the following information: identifiers of resource pools in the second resource pool set, time-frequency domain information of resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set.

[0046] In a feasible design, the receiving unit is further configured to receive a secondary link control channel from the second electronic device, where the secondary link control channel is used to indicate communication resources and transmission parameters of a secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information;

[0047] The processing unit is further configured to determine the secondary link data channel according to the communication resources and transmission parameters of the secondary link data channel;

[0048] The receiving unit is configured to receive the cooperative assistance information according to the secondary link data channel.

[0049] In a fourth aspect, an embodiment of the present application provides a communication device, including:

[0050] A sending unit, configured to send cooperative assistance information to a first electronic device, where the cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from resource pools included in a first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource referred to when the second electronic device selects secondary link communication resources;

[0051] A receiving unit, configured to receive indication information from the first electronic device, where the indication information is used to indicate the reference resource;

[0052] A processing unit, configured to determine communication resources for secondary link communication according to the reference resource.

[0053] In a feasible design, the sending unit is configured to send the cooperative assistance information to the first electronic device on communication resources included in the m-th resource pool, and the m-th resource pool is included in the first resource pool set.

[0054] In a feasible design, the cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from resource pools included in a second resource pool set, and the cooperative assistance information includes at least one of the following information: identifiers of resource pools in the second resource pool set, time-frequency domain information of resource pools in the second resource pool, and the second resource pool set is included in the first resource pool set.

[0055] In a feasible design, after the receiving unit receives the indication information from the first electronic device, the processing unit is further configured to when the indication information occupies communication resources in the n-th resource pool, the second electronic device determines that the reference resource is included in the n-th resource pool, and the n-th resource pool is included in the first resource pool set.

[0056] In a feasible design, the sending unit is configured to send a secondary link control channel to the first electronic device, and send the secondary link data channel on the communication resources indicated by the secondary link control channel. The secondary link control channel is used to indicate the communication resources and transmission parameters of the secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information.

[0057] In a fifth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the electronic device implements the method in any possible implementation manner of the first aspect or the first aspect above.

[0058] In a sixth aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the electronic device implements the method in any possible implementation manner of the second aspect or the second aspect above.

[0059] In a seventh aspect, an embodiment of the present application provides a computer program product containing instructions. When it runs on an electronic device, it causes the electronic device computer to execute the method in any possible implementation manner of the first aspect or the first aspect above.

[0060] In an eighth aspect, an embodiment of the present application provides a computer program product containing instructions. When it runs on an electronic device, it causes the electronic device computer to execute the method in any possible implementation manner of the second aspect or the second aspect above.

[0061] In a ninth aspect, an embodiment of the present application provides a readable storage medium. Instructions are stored in the readable storage medium. When it runs on an electronic device, it causes the electronic device to execute the method in any possible implementation manner of the first aspect or the first aspect above.

[0062] In a tenth aspect, an embodiment of the present application provides a readable storage medium. Instructions are stored in the readable storage medium. When it runs on an electronic device, it causes the electronic device to execute the method in any possible implementation manner of the second aspect or the second aspect above.

[0063] The resource selection method and communication device provided by the embodiments of the present application. During the process of selecting secondary link resources, the second electronic device instructs the first electronic device to select reference resources for it through cooperative assistance information. After receiving the cooperative assistance information, the first electronic device selects reference resources from the resource pools included in the first resource pool set and instructs the second electronic device, so that the second electronic device can refer to these reference resources when selecting secondary link communication resources. By adopting this solution, the selection of secondary link communication resources is carried out by introducing user cooperation, ensuring that the second electronic device can select resources for secondary link communication and improving the reliability of secondary link communication. Brief Description of the Drawings

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0065] Figure 1A It is a schematic diagram of the network architecture applicable to the resource selection method provided by the embodiments of the present application;

[0066] Figure 1B It is another schematic diagram of the network architecture applicable to the resource selection method provided by the embodiments of the present application;

[0067] Figure 2 It is a flowchart of a resource selection method provided by the embodiments of the present application;

[0068] Figure 3 It is a schematic diagram of the resource pool in the resource selection method provided by the embodiments of the present application;

[0069] Figure 4 It is a schematic diagram of the structure of a communication device provided by the embodiments of the present application;

[0070] Figure 5 It is a schematic diagram of the structure of another communication device provided by the embodiments of the present application;

[0071] Figure 6 It is a schematic diagram of the structure of an electronic device provided by the embodiments of the present application. Detailed Description of the Embodiments

[0072] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0073] In V2X communication, from the perspective of whether network devices need to schedule through high-layer signaling, resource allocation methods are divided into scheduled resource allocation methods and sensing-based resource selection methods. The sensing-based resource selection method is actually a process in which a V2X device receives the PSCCH of other V2X devices within a resource sensing window, determines the reserved resources of other V2X devices based on the PSCCH, excludes the reserved resources from the resource selection window, and selects resources for sidelink communication from the remaining resources.

[0074] In the resource sensing method, whether it is LTE V2X communication or NR V2X communication, due to the half-duplex reason, when a V2X device sends sidelink data, it cannot receive the PSCCH sent by other V2X devices, which in turn causes the V2X device to be unable to exclude the reserved resources of other V2X devices within the resource selection window. To solve this problem, a scheme for excluding all possible reserved resources is introduced. In this scheme, when a V2X device sends sidelink data in a certain time slot within the resource sensing window, a set of time slots is obtained based on this time slot and all possible reservation periods of the reserved resources, and the time slots that fall within the resource selection window in this set of time slots are excluded from the reserved resources.

[0075] In LTE V2X communication, the services between V2X devices are periodic services. Therefore, based on the above exclusion scheme, the problem that V2X devices cannot exclude reserved resources from the resource selection window can be solved to a certain extent. However, when the period of the periodic service is short or there are many periodic services, it is easy to cause no resources to be available or very few resources to be available within the resource selection window, which in turn leads to V2X communication failure. Moreover, NR V2X communication supports more flexible reservation periods. If the above exclusion scheme continues to be used, it is easier to cause the situation that no resources are available or very few resources are available within the resource selection window.

[0076] In view of this, embodiments of the present application provide a resource selection method and a communication device. The first resource pool set is configured for the first electronic device through network configuration or pre-configuration, and the second resource pool set is configured for the second electronic device. The second electronic device requests the first electronic device to indicate a set of reference resources for it, and the second electronic device selects the sidelink communication resources with reference to this set of reference resources. Thus, the selection of sidelink communication resources is carried out by introducing user cooperation, ensuring that the second electronic device can select resources for sidelink communication and improving the reliability of sidelink communication. In the embodiments of the present application, when there are multiple resource pools, it is ensured that the resources that the second electronic device wants to select for sidelink communication and the reference resources are in the same resource pool, so as to ensure that the second electronic device can select reliable resources for sidelink communication.

[0077] First, the nouns involved in the embodiments of the present application are explained.

[0078] The first electronic device is the electronic device that selects reference resources for the second electronic device.

[0079] The second electronic device is the electronic device that sends cooperative assistance information to the first electronic device to indicate the first electronic device to select reference resources for it. When selecting sidelink communication resources subsequently, the second electronic device selects sidelink communication resources with reference to the above reference resources.

[0080] Figure 1A is a schematic diagram of the network architecture applicable to the resource selection method provided by the embodiments of the present application. Please refer to Figure 1A , this network architecture includes a first electronic device and a second electronic device. Among them, a sidelink is established between the first electronic device and the second electronic device, and sidelink communication is carried out based on this sidelink. Among them, the sidelink is also called a direct link, a unilateral link, etc., and sidelink communication is also called direct communication, etc. The first resource pool set is configured through network configuration or pre-configuration, and this first resource pool set contains multiple resource pools. As Figure 1A In, the first resource pool set contains Resource Pool 1, Resource Pool 2, and Resource Pool 3. The first electronic device selects reference resources for the second electronic device from the multiple resource pools included in the first resource pool set.

[0081] Figure 1B is another schematic diagram of the network architecture applicable to the resource selection method provided by the embodiments of the present application. Please refer to Figure 1B, the network architecture is the communication network architecture of V2X. V2X communication includes communication between vehicles (vehicle to vehicle, V2V), communication between a vehicle and roadside infrastructure (vehicle to infrastructure, V2I), communication between a vehicle and a pedestrian (vehicle to pedestrian, V2P), communication between a vehicle and a network (vehicle to network, V2N), etc. The above-mentioned communication between vehicles and everything is collectively referred to as V2X (X represents anything) communication. The first electronic device is, for example, any one of a vehicle, an electronic device of a pedestrian, a Road Side Unit (RSU), etc., and the second electronic device is any one of a vehicle, an electronic device of a pedestrian, a Road Side Unit (RSU), etc.

[0082] Next, based on the above-mentioned noun explanations and Figure 1A and Figure 1B the network architecture shown, the resource selection method for the secondary link communication described in the embodiments of the present application will be described in detail. Exemplarily, reference can be made to Figure 2 . Figure 2 FIG. is a flowchart of a resource selection method provided by an embodiment of the present application. This embodiment will be described from the perspective of the interaction between the first electronic device and the second electronic device. This embodiment includes:

[0083] 101. The second electronic device sends cooperation assistance information to the first electronic device.

[0084] Correspondingly, the first electronic device receives the cooperation assistance information from the second device.

[0085] Among them, the cooperation assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the first resource pool set. The reference resource is the resource referred to when the second electronic device selects a secondary link communication resource, and the first resource pool set includes at least one resource pool.

[0086] Exemplarily, at least one resource pool for sending secondary link data is configured for the first electronic device through network configuration or pre-configuration. These resource pools form the first resource pool set, and the resources in the resource pools included in the first resource pool set support user-interactive resource selection. Similarly, at least one resource pool for sending secondary link data is configured for the second electronic device through network configuration or pre-configuration. These resource pools form the second resource pool set, and the resources in the resource pools included in the second resource pool set also support user-interactive resource selection. The first resource pool set is the same as the second resource pool set, or the second resource pool set is a subset of the first resource pool set. For example, please refer to Figure 1A, the first resource pool set includes Resource Pool 1, Resource Pool 2, and Resource Pool 3. Similarly, the second resource pool set also includes Resource Pool 1, Resource Pool 2, and Resource Pool 3. For another example, the first resource pool set includes Resource Pool 1, Resource Pool 2, and Resource Pool 3, and the second resource pool includes Resource Pool 2 and Resource Pool 3. Each resource pool in the first resource pool set can uniquely determine a resource set in the time-frequency domain. Exemplarily, please refer to Figure 3 .

[0087] Figure 3 is a schematic diagram of the resource pool in the resource selection method provided by the embodiments of the present application. Please refer to Figure 3 , the time-domain information, frequency-domain information, etc. of the network-configured or pre-configured resource pool. Among them, the time-domain information includes the offset of the resource pool in the time domain and the bit map, etc. The offset is used to indicate the starting time slot position of the resource pool, and the bit map is used to indicate the time slots included in the resource pool starting from the starting time slot position. The bit map repeats in the time domain in a cycle. For example, assume Figure 3 the time-domain offset in is t, and the bit map is [1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1]. Therefore, within the first cycle of the bit map, the time slots [t + 1, t + 2, t + 3, t + 5, t + 6, t + 7, t + 8, t + 9, t + 10, 0, t + 12, t + 13, t + 14, t + 16, t + 17, t + 18, t + 19, t + 20, t + 24, t + 25, t + 26] are included in the resource pool, and the next cycle starts from time slot (t + 27).

[0088] The frequency-domain information of a resource pool includes the number of sub-channels in the frequency domain, the resource blocks (RBs) included in one sub-channel, and the starting RB position of the starting sub-channel, etc. In the embodiments of the present application, a resource pool occupies consecutive sub-channels in the frequency domain, that is, the resource pool is continuous in the frequency domain.

[0089] 102. The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information.

[0090] Exemplarily, after receiving the cooperative assistance information, the first electronic device selects a reference resource for the second electronic device from the resource pools included in the first resource pool set by sensing. This reference resource is, for example, a resource recommended for the second electronic device to use; or, the reference resource is a resource not recommended for the second electronic device to use.

[0091] When the first electronic device selects a reference resource, it selects from one or some of the resource pools in the first resource pool set through collaborative assistance information, etc. For example, when the first resource pool set and the second resource pool set are exactly the same, the first electronic device selects a reference resource from each resource pool in the first resource pool set. Another example is that the collaborative assistance information can also implicitly or explicitly indicate to the first electronic device from which resource pools to select reference resources.

[0092] 103. The first electronic device sends indication information to the second electronic device.

[0093] Correspondingly, the second electronic device receives the indication information, and the indication information is used to indicate the reference resource.

[0094] Exemplarily, the first electronic device bears the above indication information through a secondary link control channel and sends the secondary link control channel to the second electronic device.

[0095] 104. The second electronic device determines communication resources for secondary link communication according to the reference resource.

[0096] Exemplarily, when the reference resource is a resource recommended for the second electronic device to use, the second electronic device selects resources for secondary link communication from these reference resources. When the reference resource is a resource not recommended for the second electronic device to use, the second electronic device avoids selecting resources for secondary link communication from these reference resources.

[0097] In the resource selection method provided by the embodiments of the present application, during the secondary link resource selection process, the second electronic device indicates to the first electronic device to select a reference resource for it through collaborative assistance information. After receiving the collaborative assistance information, the first electronic device selects a reference resource for the second electronic device from the resource pools included in the first resource pool set and indicates it to the second electronic device, so that the second electronic device refers to these reference resources when selecting secondary link communication resources. By adopting this solution, the selection of secondary link communication resources is carried out by introducing the way of user collaboration. Whether the resource pools configured for the two electronic devices by the network configuration or the pre-configuration method are exactly the same, it can ensure that the second electronic device can select resources for secondary link communication and improve the reliability of secondary link communication.

[0098] In the above embodiment, the first resource pool set includes M resource pools, M≥1 and is an integer. When the second electronic device sends collaborative assistance information, it can send the collaborative assistance information on the communication resources included in the mth resource pool. The mth asset is, for example, any one of the M resource pools, 1≤m≤M. By adopting this solution, the second electronic device sends collaborative assistance information on the resources included in the resource pool that supports user collaboration configured by the network configuration or pre-configuration, without occupying other resources, achieving the purpose of saving resources.

[0099] In the above embodiments, the second electronic device can indicate to the first electronic device which resource pools in the first resource pool set to select reference resources through an implicit manner. For example, the second electronic device sends cooperative assistance information on the communication resources included in the m-th resource pool, and the m-th resource is any one of the M resource pools included in the first resource pool set. At this time, the first electronic device selects a reference resource from the m-th resource pool. By adopting this solution, the purpose of saving signaling overhead is achieved by implicitly indicating the resource pool for selecting the reference resource in the first resource pool set.

[0100] In the above embodiments, the second electronic device can indicate to the first electronic device which resource pools in the first resource pool set to select reference resources through an explicit manner. For example, the second electronic device sends cooperative assistance information on the communication resources included in the m-th resource pool, and the m-th resource is any one of the M resource pools included in the first resource pool set. This cooperative assistance information is used to indicate at least one resource pool in the first resource pool set. At this time, the first electronic device selects a reference resource from at least one resource pool indicated by the cooperative assistance information. By adopting this solution, the purpose of enabling the first electronic device to select a reference resource specifically is achieved by explicitly indicating the resource pool for selecting the reference resource in the first resource pool set.

[0101] In the above embodiments, the second electronic device can also adopt a combination of the display method and the implicit method to indicate to the first electronic device which resource pools in the first resource pool set to select reference resources. For example, for example, the second electronic device requires the first electronic device to select reference resources for it in k resource pools, and the identifiers of the k resource pools are m1, m2,..., mk respectively. The second electronic device sends cooperative assistance information on the resources included in any one of the k resource pools. For example, if the second electronic device selects the m1 resource pool to send the cooperative assistance information, the cooperative assistance information carries the identifiers of the remaining resource pools, that is, m2,..., mk.

[0102] In the above embodiments, the first electronic device can indicate to the second electronic device through an implicit manner which resource pool the reference resource is located in. For example, the first electronic device sends the indication information to the second electronic device on the communication resources included in the n-th resource pool. The n-th resource pool is included in the first resource pool set, and the reference resource is included in the n-th resource pool. After receiving the indication information, the second electronic device can determine that the reference resource is located in the n-th resource pool when it finds that the indication information is on the communication resources in the n-th resource pool. The n-th resource pool and the above-mentioned m-th resource pool are the same or different resource pools. When the n-th resource pool and the m-th resource pool are different, the resources occupied by carrying the cooperative assistance information are in the m-th resource pool, but it does not implicitly indicate that the first electronic device selects communication resources from the m-th resource pool.

[0103] By adopting this solution, the purpose of saving signaling overhead is achieved by implicitly indicating the resource pool where the reference resource is located.

[0104] In the above embodiments, the first resource pool set is configured for the first electronic device through network configuration or pre-configuration. The first resource pool set includes M1 resource pools. The second resource pool set is configured for the second electronic device through network configuration or pre-configuration. The second resource pool set includes M2 resource pools. In actual implementation, M1 = M2. At this time, the first resource pool set and the second resource pool set are exactly the same. For example, please refer to Figure 1A , both the first resource pool set and the second resource pool set include Resource Pool 1, Resource Pool 2, and Resource Pool 3. Or, M1 > M2. At this time, the second resource pool set is a subset of the first resource pool set. For example, please refer to Figure 1A , the first resource pool set includes Resource Pool 1, Resource Pool 2, and Resource Pool 3, and the second resource pool set includes Resource Pool 2 and Resource Pool 3.

[0105] When the second resource pool set is a subset of the first resource pool set, if the second electronic device needs to indicate to the first electronic device to select a reference resource for it from the second resource pool set, the second electronic device needs to inform each resource pool in the second resource pool set to the first electronic device through cooperation assistance information, etc. For example, the second electronic device carries the identifiers or time-frequency domain information of each resource pool in the second resource pool in the cooperation assistance information and sends it to the first electronic device. After receiving the cooperation assistance information, the first electronic device determines the second resource pool set from the first resource pool set, and then selects a reference resource for the second electronic device from the transmission resources included in the second resource pool set.

[0106] By adopting this solution, since the first resource pool set is a subset of the second resource pool set, network configuration or pre-configuration can be flexibly performed.

[0107] It should be noted that although the above is described by taking the second resource pool set as a subset of the first resource pool set as an example. However, the embodiments of the present application are not limited. In other feasible implementation manners, there only needs to be an intersection between the first resource pool set and the second resource pool set.

[0108] In the above embodiments, the second electronic device transmits the cooperative assistance information on the secondary link data channel. At this time, the second electronic device sends a secondary link control channel to the first electronic device, and the secondary link control channel is used to indicate the communication resources and transmission parameters of the secondary link data channel. Then, the second electronic device sends the secondary link data channel to the first electronic device according to the communication resources and transmission parameters indicated by the secondary link control channel. Correspondingly, the first electronic device receives the secondary link control channel and receives the secondary link data channel carrying the cooperative assistance information according to the communication resources and transmission parameters indicated by the secondary link control channel. Among them, the transmission parameters are, for example, Modulation and Coding Scheme (MCS), Demodulation Reference Signal (DMRS), Redundancy Version (RV), etc. With this solution, the cooperative assistance information is sent through the secondary link control channel and the secondary link data channel, without the need to design an additional sending method, reducing the complexity of sending the cooperative assistance information.

[0109] The following is an embodiment of the device of the present application, which can be used to execute the method embodiment of the present application. For details not disclosed in the device embodiment of the present application, please refer to the method embodiment of the present application.

[0110] Figure 4 It is a schematic structural diagram of a communication device provided in an embodiment of the present application. The communication device 100 can be implemented in a software and / or hardware manner. As Figure 4 shown, the communication device 100 includes:

[0111] A receiving unit 11, configured to receive cooperative assistance information from a second electronic device, where the cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from resource pools included in a first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource referred to when the second electronic device selects secondary link communication resources;

[0112] A processing unit 12, configured to select the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information;

[0113] A sending unit 13, configured to send indication information to the second electronic device, where the indication information is used to indicate the reference resource.

[0114] In a feasible design, the receiving unit 11 is configured to receive the cooperative assistance information sent by the second electronic device on communication resources included in the m-th resource pool, and the m-th resource pool is included in the first resource pool set.

[0115] In a feasible design, the processing unit 12 is configured to select the reference resource for the second electronic device from the m-th resource pool.

[0116] In a feasible design, the cooperative assistance information is used to indicate at least one resource pool. The processing unit 12 is configured to select the reference resource for the second electronic device from the communication resources included in the at least one resource pool. The at least one resource pool is included in the first resource pool set, and the at least one resource pool includes the m-th resource pool.

[0117] In a feasible design, the sending unit 13 is configured to send the indication information to the second electronic device on the communication resources included in the n-th resource pool. The n-th resource pool is included in the first resource pool set, and the reference resource is included in the n-th resource pool.

[0118] In a feasible design, the processing unit 12 is configured to determine a second resource pool set from the first resource pool set, and select a reference resource for the second electronic device from the transmission resources included in the second resource pool set. Wherein, the cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set.

[0119] In a feasible design, the receiving unit 11 is further configured to receive a secondary link control channel from the second electronic device. The secondary link control channel is used to indicate the communication resources and transmission parameters of the secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information;

[0120] The processing unit 12 is further configured to determine the secondary link data channel according to the communication resources and transmission parameters of the secondary link data channel;

[0121] The receiving unit 11 is configured to receive the cooperative assistance information according to the secondary link data channel.

[0122] The communication device provided in the embodiments of the present application can perform the actions of the first electronic device in the above embodiments, and its implementation principles and technical effects are similar, which will not be elaborated here.

[0123] Figure 5 It is a schematic structural diagram of another communication device provided in the embodiments of the present application. The communication device 200 can be implemented in a software and / or hardware manner. As Figure 5 shown, the communication device 200 includes:

[0124] A sending unit 21, configured to send cooperation assistance information to a first electronic device, where the cooperation assistance information is used to instruct the first electronic device to select a reference resource for a second electronic device from resource pools included in a first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource for the second electronic device to refer to when selecting a secondary link communication resource;

[0125] A receiving unit 22, configured to receive indication information from the first electronic device, where the indication information is used to indicate the reference resource;

[0126] A processing unit 23, configured to determine communication resources for secondary link communication according to the reference resource.

[0127] In a feasible design, the sending unit 21 is configured to send the cooperation assistance information to the first electronic device on communication resources included in an m-th resource pool, and the m-th resource pool is included in the first resource pool set.

[0128] In a feasible design, the cooperation assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from resource pools included in a second resource pool set, and the cooperation assistance information includes at least one of the following information: identifiers of resource pools in the second resource pool set, time-frequency domain information of resource pools in the second resource pool, and the second resource pool set is included in the first resource pool set.

[0129] In a feasible design, after the receiving unit 22 receives the indication information from the first electronic device, the processing unit 23 is further configured to, when the indication information occupies communication resources in an n-th resource pool, the second electronic device determines that the reference resource is included in the n-th resource pool, and the n-th resource pool is included in the first resource pool set.

[0130] In a feasible design, the sending unit 21 is configured to send a secondary link control channel to the first electronic device, and send a secondary link data channel on communication resources indicated by the secondary link control channel, where the secondary link control channel is used to indicate communication resources and transmission parameters of the secondary link data channel, and the secondary link data channel is used to carry the cooperation assistance information.

[0131] The communication device provided in the embodiments of the present application can perform the actions of the second electronic device in the above embodiments, and its implementation principle and technical effects are similar, which will not be elaborated here.

[0132] Figure 6 This is a schematic structural diagram of an electronic device provided in the embodiments of the present application. As Figure 6 shown, the electronic device 300 includes:

[0133] a processor 31 and a memory 32;

[0134] The memory 32 stores computer-executable instructions;

[0135] The processor 31 executes the computer-executable instructions stored in the memory 32, such that the processor 31 executes the resource selection method performed by the first electronic device as described above; or, such that the processor 31 executes the resource selection method performed by the second electronic device as described above.

[0136] For the specific implementation process of the processor 31, reference may be made to the above method embodiments. Their implementation principles and technical effects are similar, and will not be elaborated here in this embodiment.

[0137] Optionally, the electronic device 300 further includes a communication component 33. Among them, the processor 31, the memory 32, and the communication component 33 may be connected via a bus 34.

[0138] An embodiment of the present application further provides a readable storage medium. Computer-executable instructions are stored in the readable storage medium. When the computer-executable instructions are executed by a processor, they are used to implement the resource selection method performed by the first electronic device as described above; or, when the computer-executable instructions are executed by a processor, they are used to implement the resource selection method performed by the second electronic device as described above.

[0139] An embodiment of the present application further provides a computer program product. When the computer program product runs on a first electronic device, it is used to implement the resource selection method performed by the first electronic device as described above; or, when the computer program product runs on a second electronic device, it is used to implement the resource selection method performed by the second electronic device as described above.

[0140] Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including the above method embodiments; and the foregoing storage medium includes: various media such as ROM, RAM, magnetic disk, or optical disc that can store program codes.

[0141] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A resource selection method, characterized in that, Including: The first electronic device receives cooperative assistance information from the second electronic device. The cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the first resource pool set. The first resource pool set includes at least one resource pool, and the reference resource is the resource referred to when the second electronic device selects a secondary link communication resource. The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information. The first electronic device sends indication information to the second electronic device. The indication information is used to indicate the reference resource. The first electronic device receives cooperative assistance information from the second electronic device, including: The first electronic device receives the cooperative assistance information sent by the second electronic device on the communication resources included in the m-th resource pool. The m-th resource pool is included in the first resource pool set. The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information, including: The first electronic device selects the reference resource for the second electronic device from the m-th resource pool.

2. The method according to claim 1, characterized in that, The cooperative assistance information is used to indicate at least one resource pool. The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information, including: The first electronic device selects the reference resource for the second electronic device from the communication resources included in the at least one resource pool. The at least one resource pool is included in the first resource pool set and the at least one resource pool includes the m-th resource pool.

3. The method according to claim 1, characterized in that, The first electronic device sends indication information to the second electronic device, including: The first electronic device sends the indication information to the second electronic device on the communication resources included in the n-th resource pool. The n-th resource pool is included in the first resource pool set, and the reference resource is included in the n-th resource pool.

4. The method according to any one of claims 1-3, characterized in that, The first electronic device selects the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information, including: The first electronic device determines a second resource pool set from the first resource pool set. The cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set. The second resource pool set is included in the first resource pool set. The first electronic device selects a reference resource for the second electronic device from the transmission resources included in the second resource pool set.

5. The method according to any one of claims 1-3, characterized in that, The first electronic device receives cooperative assistance information from the second electronic device, including: The first electronic device receives a secondary link control channel from the second electronic device. The secondary link control channel is used to indicate the communication resources and transmission parameters of a secondary link data channel. The secondary link data channel is used to carry the cooperative assistance information. The first electronic device determines the secondary link data channel according to the communication resources and transmission parameters of the secondary link data channel; The first electronic device receives the cooperative assistance information according to the secondary link data channel.

6. A resource selection method, characterized in that, Including: The second electronic device sends cooperative assistance information to the first electronic device. The cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the first resource pool set. The first resource pool set includes at least one resource pool, and the reference resource is the resource referred to when the second electronic device selects secondary link communication resources; The second electronic device receives indication information from the first electronic device, and the indication information is used to indicate the reference resource; The second electronic device determines communication resources for secondary link communication according to the reference resource; The second electronic device sending cooperative assistance information to the first electronic device includes: The second electronic device sends the cooperative assistance information to the first electronic device on the communication resources included in the m-th resource pool, and the m-th resource pool is included in the first resource pool set.

7. The method according to claim 6, characterized in that, The cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in the second resource pool set. The cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool, and the second resource pool set is included in the first resource pool set.

8. The method according to claim 6, characterized in that, After the second electronic device receives the indication information from the first electronic device, it further includes: When the indication information occupies the communication resources in the n-th resource pool, the second electronic device determines that the reference resource is included in the n-th resource pool, and the n-th resource pool is included in the first resource pool set.

9. The method according to any one of claims 6-8, characterized in that, The second electronic device sending cooperative assistance information to the first electronic device includes: The second electronic device sends a secondary link control channel to the first electronic device. The secondary link control channel is used to indicate the communication resources and transmission parameters of the secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information; The second electronic device sends the secondary link data channel on the communication resources indicated by the secondary link control channel.

10. A communication device, characterized in that, Including: A receiving unit, configured to receive cooperative assistance information from a second electronic device. The cooperative assistance information is used to instruct a first electronic device to select a reference resource for the second electronic device from resource pools included in a first resource pool set. The first resource pool set includes at least one resource pool, and the reference resource is a resource referred to when the second electronic device selects secondary link communication resources; A processing unit, configured to select the reference resource for the second electronic device from the resource pools included in the first resource pool set according to the cooperative assistance information; A sending unit, configured to send indication information to the second electronic device, where the indication information is used to indicate the reference resource; The receiving unit is configured to receive the cooperative assistance information sent by the second electronic device on the communication resources included in the m-th resource pool, where the m-th resource pool is included in the first resource pool set; The processing unit is configured to select the reference resource for the second electronic device from the m-th resource pool.

11. The device according to claim 10, characterized in that, The cooperative assistance information is used to indicate at least one resource pool. The processing unit is configured to select the reference resource for the second electronic device from the communication resources included in the at least one resource pool, where the at least one resource pool is included in the first resource pool set and the at least one resource pool includes the m-th resource pool.

12. The device according to claim 10, characterized in that, The sending unit is configured to send the indication information to the second electronic device on the communication resources included in the n-th resource pool, where the n-th resource pool is included in the first resource pool set and the reference resource is included in the n-th resource pool.

13. The device according to any one of claims 10 - 12, characterized in that, The processing unit is configured to determine a second resource pool set from the first resource pool set, and select a reference resource for the second electronic device from the transmission resources included in the second resource pool set. Wherein, the cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set.

14. The device according to any one of claims 10 - 12, characterized in that, The receiving unit is further configured to receive a secondary link control channel from the second electronic device, where the secondary link control channel is used to indicate the communication resources and transmission parameters of the secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information; The processing unit is further configured to determine the secondary link data channel according to the communication resources and transmission parameters of the secondary link data channel; The receiving unit is configured to receive the cooperative assistance information according to the secondary link data channel.

15. A communication device, characterized in that, Comprising: A sending unit, configured to send cooperative assistance information to a first electronic device, where the cooperative assistance information is used to instruct the first electronic device to select a reference resource for a second electronic device from the resource pools included in a first resource pool set, the first resource pool set includes at least one resource pool, and the reference resource is a resource referred to when the second electronic device selects secondary link communication resources; A receiving unit, configured to receive indication information from the first electronic device, where the indication information is used to indicate the reference resource; A processing unit, configured to determine communication resources for secondary link communication according to the reference resource; The sending unit is configured to send the cooperative assistance information to the first electronic device on the communication resources included in the m-th resource pool, where the m-th resource pool is included in the first resource pool set.

16. The device according to claim 15, characterized in that, The cooperative assistance information is used to instruct the first electronic device to select a reference resource for the second electronic device from the resource pools included in a second resource pool set. The cooperative assistance information includes at least one of the following information: the identifiers of the resource pools in the second resource pool set, the time-frequency domain information of the resource pools in the second resource pool set, and the second resource pool set is included in the first resource pool set.

17. The device according to claim 15, characterized in that, After the receiving unit receives the indication information from the first electronic device, the processing unit is further configured to, when the indication information occupies communication resources in the nth resource pool, determine that the reference resources are included in the nth resource pool, and the nth resource pool is included in the first resource pool set.

18. The device according to any one of claims 15 - 17, characterized in that, The sending unit is configured to send a secondary link control channel to the first electronic device, and send the secondary link control channel on the communication resources indicated by the secondary link control channel. The secondary link control channel is used to indicate the communication resources and transmission parameters of a secondary link data channel, and the secondary link data channel is used to carry the cooperative assistance information.

19. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored on the memory and executable on the processor. The feature is that when the processor executes the program, the electronic device implements the method described in any one of claims 1-5 above; or, when the processor executes the program, the electronic device implements the method described in any one of claims 6-9 above.

20. A readable storage medium, characterized in that, Instructions are stored in the readable storage medium. When it runs on an electronic device, it causes the electronic device to execute the method described in any one of claims 1-5; or, it causes the electronic device to execute the method described in any one of claims 6-9.

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