CN111132091B

CN111132091B - Resource allocation method and device

Info

Publication number: CN111132091B
Application number: CN201811289899.8A
Authority: CN
Inventors: 赵亚利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2021-10-22
Anticipated expiration: 2038-10-31
Also published as: CN111132091A; WO2020088348A1

Abstract

The application discloses a resource allocation method and a resource allocation device, which are used for ensuring that resources allocated by direct communication resource allocation nodes can be matched with a wireless access technology selected by each logic channel on a direct communication interface of a terminal, so that direct communication data can be transmitted by using a reasonable wireless access technology. On a terminal side, a resource allocation method provided in an embodiment of the present application includes: determining a direct communication interface resource allocation mode configured for the terminal by a resource allocation mode management node; determining groups obtained by dividing the logic channels of the direct communication interface based on the wireless access technology used by each logic channel of the direct communication interface; and independently executing the direct communication interface resource allocation related process for each group according to the resource allocation mode.

Description

Resource allocation method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a resource allocation method and apparatus.

Background

Referring to fig. 1, devices in close proximity to each other and between devices allow direct communication between the devices. For convenience of description, a direct communication link between devices is defined as a Sidelink link, and a corresponding wireless interface is referred to as a Sidelink interface; the cellular communication link between the network and the direct communication device is called a uulink, and its corresponding interface is called a Uu interface.

The devices that communicate directly may also all be on-line or off-line, or some may be on-line and some off-line. So-called on-network, i.e. devices participating in direct communication, are located within the 3GPP direct communication carrier coverage, and so-called off-network, i.e. devices participating in direct communication, are not within the 3GPP direct communication carrier coverage.

Typical communication scenarios for direct communication include the following three:

one-to-one communication between direct communication terminals;

a device can send the same data to all devices in a communication group at a time (group communication);

a device can send the same data to all nearby devices at once (broadcast communication);

the direct communication interface supports two resource allocation modes:

resource allocation pattern of network scheduling: that is, the network allocates resources to the terminal according to the Sidelink BSR (Buffer state reporting) reported by the terminal.

Resource allocation mode selected by the terminal: namely, the terminal selects one resource from pre-configured or network broadcast transmission resources for the transmission of the direct communication link.

For the direct communication interface, if the terminal is on the network, whether the resource allocation mode scheduled by the network or the resource allocation mode autonomously selected by the terminal is used, the resources used by the direct communication interface are controlled by the network, and the network controls the resource pool allocated by the direct communication interface (the resource allocation mode autonomously selected by the terminal) or the specific resources (the resource allocation mode scheduled by the network) through the Uu interface. Hence, collectively referred to as Uu-based resource allocation.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and a resource allocation device, which are used for ensuring that resources allocated by a direct communication resource allocation node can be matched with a wireless access technology selected by each logic channel on a direct communication interface of a terminal, so that direct communication data can be transmitted by using a reasonable wireless access technology.

On a terminal side, a resource allocation method provided in an embodiment of the present application includes:

determining a direct communication interface resource allocation mode configured for the terminal by a resource allocation mode management node;

determining groups obtained by dividing the logic channels of the direct communication interface based on the wireless access technology used by each logic channel of the direct communication interface;

and independently executing the direct communication interface resource allocation related process for each group according to the resource allocation mode.

By the method, a direct communication interface resource allocation mode configured for the terminal by a resource allocation mode management node is determined; determining groups obtained by dividing the logic channels of the direct communication interface based on the wireless access technology used by each logic channel of the direct communication interface; and independently executing the related process of the resource allocation of the direct communication interface for each group according to the resource allocation mode, thereby ensuring that the resources allocated by the direct communication resource allocation node can be matched with the wireless access technology selected by each logic channel on the direct communication interface of the terminal, and ensuring that the direct communication data can be transmitted by using the reasonable wireless access technology.

Optionally, the method further comprises: setting a group identifier for each group, and storing a mapping relation between a wireless access technology and the group identifier;

and based on the mapping relation, independently executing a direct communication interface resource allocation related process for each group according to the resource allocation mode.

Alternatively,

the mapping relation is pre-configured to the terminal;

or the mapping relation is determined by the resource allocation mode management node and is notified to the terminal through signaling;

or the mapping relation is determined by the terminal and is informed to the resource allocation mode management node through signaling.

Optionally, when the resource allocation mode is a scheduling resource allocation mode, the direct communication interface resource allocation related process is independently performed on each packet, and specifically includes one or a combination of the following processes:

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

Optionally, the BSR procedure specifically includes:

for each of the packets, maintaining a BSR-related timer for the packet;

and for each group, independently judging whether the logic channel corresponding to the group meets the triggering condition of the Sildelink BSR.

Optionally, the BSR procedure further includes organizing the Sidelink BSR MAC CE in one of the following ways:

carrying corresponding buffer area state information of all groups for the Sidelink BSR MAC CE triggered by any group;

and reporting the Sidelink BSR MAC CEs triggered by different groups independently, and distinguishing the groups corresponding to the Sidelink BSR MAC CEs through physical resources used by the Sidelink BSR MAC CEs on a Uu interface or through Logical Channel Identifiers (LCIDs) of media access control MAC subheaders corresponding to the Sidelink BSR MAC CEs.

Optionally, the sildelink BSR MAC CE triggered by any packet carries corresponding buffer status information of all packets, and specifically includes:

adding bitmap in the Sidelink BSR MAC CE to indicate which grouped buffer area state information the Sidelink BSR MAC CE carries;

or, adding indication information in the MAC subheader corresponding to the Sidelink BSR MAC CE to indicate which packets of buffer status information the Sidelink BSR MAC CE carries.

Optionally, the SR process specifically includes:

configuring a plurality of sets of SR resources for each group;

for each group, when the logic channel corresponding to the group meets the Regular BSR triggering condition, SR triggering judgment is carried out;

for each packet, if the SR is triggered, an SR resource is selected from among SR resources corresponding to the packet.

Optionally, the Sidelink resource allocation procedure specifically includes:

and sending a Sidelink resource allocation scheduling signaling through a Uu interface, wherein the Sidelink resource allocation scheduling signaling carries grouping indication information and is used for indicating a grouping identifier or a Radio Access Technology (RAT) identifier corresponding to the Sidelink resource allocation.

Alternatively,

indicating the grouping identification or RAT identification through different Silelink wireless network temporary identifications;

the physical downlink shared channel resource indicated by the Sidelink scheduling signaling or the Sidelink scheduling signaling carries the grouping identifier or the RAT identifier;

and indicating the grouping identification or the RAT identification through the allocated Sidelink physical resource or a transmission carrier.

Optionally, when the resource allocation mode is a terminal self-selected resource allocation mode, the direct communication interface resource allocation related process is independently performed on each packet, specifically including one or a combination of the following processes:

and aiming at each group, determining the radio access technology corresponding to the group, and selecting the transmission resource from the resource pool corresponding to the radio access technology corresponding to the group.

Optionally, the resource allocation pattern management node is a group head, and the method further includes: and reporting auxiliary information for assisting the group head to configure a direct communication interface resource allocation mode for the terminal to the group head.

Optionally, when the resource allocation mode management node is a network side device:

for the condition that the Uu interface uses single connection, a network side device serving the terminal configures a direct communication interface resource allocation mode for the terminal;

for the case that the Uu interface uses multi-connection, a main node MN serving the terminal configures a direct communication interface resource allocation mode for the terminal; or,

for the case that the Uu interface uses multi-connection, configuring a direct communication interface resource allocation mode for the terminal by an auxiliary node SN serving the terminal; or,

for the case that the Uu interface uses multi-connection, the MN serving the terminal determines whether the MN or the SN configures a direct communication interface resource allocation mode for the terminal;

for the case that the Uu interface uses multi-connection, the terminal determines whether the MN or the SN configures the direct communication interface resource allocation mode for the terminal.

Optionally, for the case that the Uu interface uses multiple connections, the method further includes:

if a main node MN serving the terminal configures a direct communication interface resource allocation mode for the terminal, reporting auxiliary information to the network side equipment, wherein the network side equipment is the main node MN; or

If an auxiliary node SN serving the terminal configures a direct communication interface resource allocation mode for the terminal and the SN can directly receive auxiliary information from the terminal, reporting the auxiliary information to the network side equipment, wherein the network side equipment is the auxiliary node SN; or

If the auxiliary node SN serving the terminal configures a direct communication interface resource allocation mode for the terminal and the SN cannot directly receive auxiliary information from the terminal, reporting the auxiliary information to the MN, and then forwarding the auxiliary information to the SN by the MN.

Optionally, the auxiliary information includes:

the corresponding relation between the logic channel of the direct communication interface and the wireless access technology;

alternatively, the radio access technology packet indication information.

Correspondingly, on the network side, a resource allocation method provided in the embodiment of the present application includes:

configuring a direct communication interface resource allocation mode for a terminal;

and informing the terminal of the resource allocation mode.

Optionally, the network side device or the group head configures a direct communication interface resource allocation mode for the terminal.

Optionally, if the terminal is configured with the direct communication interface resource allocation mode by the group head, the method further includes: receiving auxiliary information reported by a terminal;

and the group head configures a direct communication interface resource allocation mode for the terminal based on the auxiliary information.

Optionally, if the network side device configures the direct communication interface resource allocation mode for the terminal, and the method specifically includes:

and for the case that the Uu interface uses multi-connection, the main node MN or the auxiliary node SN configures a direct communication interface resource allocation mode for the terminal.

Optionally, the configuring, by the master node MN or the auxiliary node SN, a direct communication interface resource allocation mode for the terminal specifically includes:

the MN receives auxiliary information reported by the terminal, and the MN determines a direct communication interface resource allocation mode for the terminal based on the auxiliary information;

or the SN receives auxiliary information reported by the terminal, and the SN determines a direct communication interface resource allocation mode for the terminal based on the auxiliary information;

or, the MN receives the auxiliary information reported by the terminal, and the MN determines that the MN or the SN determines a direct communication resource allocation mode for the terminal; if the MN determines that the MN determines the resource allocation mode of the direct communication interface for the terminal, the MN determines the resource allocation mode of the direct communication interface for the terminal based on the auxiliary information; if the MN determines that the SN determines the resource allocation mode of the direct communication interface for the terminal, if the SN can directly receive the auxiliary information from the terminal, the SN receives the auxiliary information reported by the terminal, and the SN determines the resource allocation mode of the direct communication interface for the terminal based on the auxiliary information; if the SN can not directly receive the auxiliary information from the terminal, the MN receives the auxiliary information reported by the terminal and forwards the auxiliary information to the SN, and the SN determines a resource allocation mode of a direct communication interface for the terminal based on the auxiliary information;

or, the terminal determines the network side equipment for determining the direct communication interface resource allocation mode for the terminal; if the terminal determines that the MN determines the resource allocation mode of the direct communication interface for the terminal, the MN determines the resource allocation mode of the direct communication interface for the terminal based on the auxiliary information; if the MN determines that the SN determines the resource allocation mode of the direct communication interface for the terminal, if the SN can directly receive the auxiliary information from the terminal, the SN receives the auxiliary information reported by the terminal, and the SN determines the resource allocation mode of the direct communication interface for the terminal based on the auxiliary information; if the SN can not directly receive the auxiliary information from the terminal, the MN receives the auxiliary information reported by the terminal and forwards the auxiliary information to the SN, and the SN determines the resource allocation mode of the direct communication interface for the terminal based on the auxiliary information.

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

Optionally, the method further comprises:

the logical channels of the direct communication interface are grouped based on the radio access technology used by the respective logical channels of the direct communication interface.

Optionally, the method further comprises: and setting a group identifier for each group, and storing a mapping relation between the wireless access technology and the group identifier.

Alternatively,

the mapping relation is pre-configured to a resource allocation mode management node;

Optionally, the method further comprises:

for the case that the Uu interface uses multiple connections, if the resource allocation mode is a resource allocation mode selected by the terminal, and the Radio Access Technology (RAT) used by the resource allocation mode management node is different from the RAT corresponding to the packet, the resource allocation mode management node acquires resource pool configuration information from other base stations using the RAT through an inter-base station interface;

the resource allocation mode management node independently executes a direct communication interface resource allocation related process for each group according to the resource allocation mode based on the resource pool configuration information.

On a terminal side, a resource allocation apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

a processor for calling the program instructions stored in the memory and executing according to the obtained program:

Optionally, the processor is further configured to: setting a group identifier for each group, and storing a mapping relation between a wireless access technology and the group identifier;

and the processor independently executes the direct communication interface resource allocation related process for each group according to the resource allocation mode based on the mapping relation.

Alternatively,

the mapping relation is pre-configured to the terminal;

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

Optionally, the BSR procedure specifically includes:

for each of the packets, maintaining a BSR-related timer for the packet;

Optionally, the SR process specifically includes:

configuring a plurality of sets of SR resources for each group;

Optionally, the Sidelink resource allocation procedure specifically includes:

Alternatively,

Optionally, the resource allocation pattern management node is a group head, and the processor is further configured to: and reporting auxiliary information for assisting the group head to configure a direct communication interface resource allocation mode for the terminal to the group head.

Optionally, for the case where the Uu interface uses multiple connections, the processor is further configured to:

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

On a network side, a resource allocation apparatus provided in an embodiment of the present application includes:

a memory for storing program instructions;

and informing the terminal of the resource allocation mode.

Optionally, the device is a network side device or a group head.

Optionally, if the apparatus is a group head, the processor is further configured to: receiving auxiliary information reported by a terminal;

and the processor configures a direct communication interface resource allocation mode for the terminal based on the auxiliary information.

Optionally, if the apparatus is a network side device, then:

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

Optionally, the processor is further configured to:

Optionally, the processor is further configured to: and setting a group identifier for each group, and storing a mapping relation between the wireless access technology and the group identifier.

Alternatively,

Optionally, the processor is further configured to:

for the case that the Uu interface uses multiple connections, if the resource allocation mode is a resource allocation mode selected by the terminal, and the Radio Access Technology (RAT) used by the resource allocation mode management node is different from the RAT corresponding to the packet, acquiring resource pool configuration information from other base stations using the RAT through an inter-base station interface;

and based on the resource pool configuration information, independently executing a direct communication interface resource allocation related process for each group according to the resource allocation mode.

On the terminal side, another resource allocation apparatus provided in the embodiment of the present application includes:

the first unit is used for determining a direct communication interface resource allocation mode configured for the terminal by the resource allocation mode management node;

a second unit, configured to determine, based on a radio access technology used by each logical channel of the direct communication interface, a packet obtained by dividing the logical channel of the direct communication interface;

a third unit, configured to independently execute a direct communication interface resource allocation related process for each packet according to the resource allocation mode.

On the network side, another resource allocation apparatus provided in the embodiment of the present application includes:

the configuration unit is used for configuring a direct communication interface resource allocation mode for the terminal;

a notifying unit, configured to notify the terminal of the resource allocation mode.

Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of D2D communication in the prior art;

fig. 2 is a flowchart illustrating a resource allocation method at a terminal side according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a resource allocation method on a network side according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a resource allocation apparatus at a terminal side according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a resource allocation apparatus on a network side according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another resource allocation apparatus at a terminal side according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another resource allocation apparatus on a network side according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Regarding the resource allocation of the communication interface for the Uu interface to assist the direct communication, there are the following three scenarios:

scene	Uu link	Sidelink
			1	LTE	NR
2	NR	NR
			3	NR	LTE

As can be seen from the above table, for a high-capability terminal, it can support multiple radio access technologies such as LTE Rel-14 radio access technology, LTE Rel-15 radio access technology and NR radio access technology at the direct communication interface. For a terminal that supports two or more radio access technologies simultaneously, the radio access technology may be selected based on the logical channel when the terminal has a direct communication requirement, that is, the radio access technologies used by different logical channels on the direct communication interface may be different. In this case, consideration needs to be given to how to ensure that the resources allocated by the direct communication resource allocation node can be matched with the radio access technology selected by each logical channel on the direct communication interface of the terminal.

The embodiment of the application provides a method and a device for allocating direct communication interface resources. The resources distributed by the direct communication resource distribution node can be matched with the wireless access technology selected by each logic channel on the direct communication interface of the terminal, so that the direct communication data can be sent by using a reasonable wireless access technology.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems supporting direct communication interface communication, especially 5G systems. These various systems include terminal devices and network devices.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. The names of the terminal devices may also be different in different systems, for example, in a 5G system, the terminal devices may be referred to as User Equipments (UEs). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers with mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate with one or more core networks via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to interconvert received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device related to the embodiment of the present application may be a base station, a CU (central Unit), or a DU (Distributed Unit), which is not limited in the embodiment of the present application.

Various embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

In the 5G system, the capability of the terminal supporting direct communication at the direct communication interface is also different, some terminals only support the LTE Radio access technology at the direct communication interface, some terminals only support the New Radio (NR) Radio access technology at the direct communication interface, and some terminals may support both LTE and NR at the direct communication interface. For a terminal that supports only one radio access technology on the direct communication interface, it goes without saying that only this radio access technology can be used on the direct communication interface, but for a terminal that supports two or more radio access technologies simultaneously, the radio access technology can be selected based on logical channels when the terminal has a direct communication need, i.e. the radio access technologies used by different logical channels on the direct communication interface may be different. In this case, consideration needs to be given to how to ensure that the resources allocated by the direct communication resource allocation node can be matched with the radio access technology selected by each logical channel on the direct communication interface of the terminal. Based on this, the embodiment of the present application provides a method for allocating transmission resources of a direct communication interface.

The embodiment of the application provides a method for allocating transmission resources of a direct communication interface, which has the core idea that: when the direct communication interface is allowed to use different radio access technologies for different logical channels, the resource allocation pattern management node may determine a unique direct communication interface resource allocation pattern based on the terminal, such as using only the scheduled resource allocation pattern or using only the terminal's own selected resource allocation pattern. But would group the logical channels of the terminal direct communication interface based on the radio access technology it uses and then perform the direct communication interface resource scheduling related procedure independently for each group.

The technical scheme provided by the embodiment of the application specifically comprises the following contents:

the resource allocation mode management node may be a network side device or a group head, and a group head (group head or cluster head) refers to a cluster head in a communication group.

The resource allocation mode management node determines a unique direct communication interface resource allocation mode based on a terminal, and specifically includes:

if the group head is used as the resource allocation mode management node, the terminal needs to report the auxiliary information to the group head.

If the network side equipment is used as a resource allocation mode management node, then:

for the condition that the Uu interface uses single connection, determining a resource allocation mode for the terminal by network side equipment serving the terminal;

for the case that the Uu interface uses multiple connections, the MN or the SN may determine a resource allocation mode for the terminal, which may be as follows:

firstly, terminal auxiliary information is reported to MN, and the MN determines a direct communication interface resource allocation mode for the terminal;

secondly, reporting the terminal auxiliary information to the SN, and determining a direct communication interface resource allocation mode for the terminal by the SN;

thirdly, the terminal auxiliary information is reported to the MN, and the MN determines whether the MN or the SN determines a direct communication resource allocation mode for the terminal; if the MN determines that the SN determines the direct communication interface resource allocation pattern for the terminal, the MN needs to forward the relevant assistance information to the SN through the interface between the MN and the SN.

And fourthly, the terminal determines the resource allocation management mode for the terminal by the MN or the SN and sends the auxiliary information to the determined network side node.

Wherein the content of the auxiliary information at least comprises:

alternatively, the radio access technology group indication information, such as the number of the radio access technology group. That is, the embodiments of the present application may perform grouping according to the radio access technology used by the logical channel.

Alternatively, the logical channels of the direct communication interface may be grouped by the terminal or the resource allocation pattern management node based on the radio access technology used by the logical channels of the direct communication interface.

Optionally, in order to simplify signaling design, a packet identifier may be further introduced for each packet (i.e. a logical channel group of the direct communication interface), and a mapping relationship between the radio access technology and the packet identifier may be maintained, where the mapping relationship between the radio access technology and the packet identifier may be determined in the following manner:

pre-configuring the management node to a terminal and/or a resource allocation mode;

the resource allocation mode management node determines and informs the terminal through signaling;

the terminal determines the resource allocation mode and informs the resource allocation mode management node through signaling.

The related process of resource scheduling of the direct communication interface specifically includes, for example:

BSR process:

for each packet, its BSR-related timer is maintained separately. Such as periodicBSR-Timer, retxsbsr-Timer.

Performing Sidelink BSR triggering judgment independently for each group, namely judging whether a logic channel corresponding to the group meets the Sidelink BSR triggering condition or not when the Sidelink BSR triggering is judged; the BSR triggering mechanism agreed in the existing protocol can be followed for whether the logical channel satisfies the sildelink BSR triggering condition.

There are two ways of organizing the sildelink BSR MAC CE:

first, any packet triggers the Sidelink BSR MAC CE, and needs to carry the buffer status information corresponding to all packets.

For example, a bitmap may be added to the Sidelink BSR MAC CE to indicate which packets of buffer status information the Sidelink BSR MAC CE carries; or adding indication information in the MAC subheader corresponding to the Sidelink BSR MAC CE to indicate which packets the Sidelink BSR MAC CE carries.

Secondly, the sildelink BSR MAC CEs triggered by different packets are independently reported, and the corresponding packets are distinguished through the physical resources used by the sildelink BSR MAC CEs on the Uu interface or through the LCIDs of the MAC subheaders corresponding to the sildelink BSR MAC CEs.

Scheduling Request (SR) procedure:

configuring sets of SR resources for each RAT packet (i.e., packet of logical channel of direct communication interface);

performing SR trigger judgment independently for each group, namely only when the logic channel corresponding to the group meets the Regular (Regular) BSR trigger condition, allowing the SR trigger judgment;

for each group, if the SR is triggered, selecting an SR resource from SR resources corresponding to the group, that is, only selecting a resource used for transmitting the SR from SR resources corresponding to the RAT group that triggered the SR;

sildenk resource allocation procedure:

the sildelink resource allocation scheduling signaling sent by the Uu interface may carry packet indication information, indicating a packet identifier or RAT identifier corresponding to the sildelink resource allocation. Specific indication forms can be as follows:

first, a group identifier or a RAT identifier is indicated by different Sidelink Radio Network Temporary Identities (RNTIs) SL-RNTIs identifiers;

secondly, the Physical Downlink Shared Channel (PDSCH) resource indicated by the Sidelink scheduling signaling or the Sidelink scheduling signaling carries a grouping identifier or an RAT identifier;

thirdly, the packet identifier or RAT identifier is indicated by the allocated specific Sidelink physical resource or the transmitted carrier.

The examples of the invention are as follows:

example 1: a resource allocation pattern determination procedure.

The resource allocation mode used by the terminal is determined by a resource allocation mode management node, which may be a network side device or a group head.

The method for determining the unique direct communication interface resource allocation mode by the resource allocation mode management node based on the terminal specifically comprises the following steps:

the terminal auxiliary information is reported to the MN, and the MN determines a direct communication interface resource allocation mode for the terminal;

the terminal auxiliary information is reported to the SN, and the SN determines a direct communication interface resource allocation mode for the terminal;

the terminal auxiliary information is reported to the MN, and the MN determines whether the MN or the SN determines a direct communication resource allocation mode for the terminal; if the MN determines that the SN determines the direct communication interface resource allocation pattern for the terminal, the MN needs to forward the relevant assistance information to the SN through the interface between the MN and the SN.

The terminal determines the resource allocation management mode for the terminal by the MN or the SN and sends auxiliary information to the determined network side node.

The content of the auxiliary information at least comprises: the correspondence between logical channels and radio access technologies or radio access technology grouping indication information.

Example 2: an embodiment grouping logical channels.

Assuming that the direct communication terminal can support both LTE and NR on the direct communication interface and can select a radio access technology based on a service (embodied as a logical channel on the air interface), the resource allocation mode management node may determine a unique direct communication interface resource allocation mode based on the terminal, but group the logical channels of the direct communication interface based on the radio access technology used by the logical channels, and then independently perform a direct communication interface resource scheduling related procedure on each group.

The grouping of logical channels of the direct communication interface based on the radio access technology used by them may specifically be performed by the terminal or by a resource allocation pattern management node.

If there is a terminal to perform grouping, the terminal may directly divide logical channels using the same radio access technology into at least one group according to a correspondence between a service and the radio access technology.

If the grouping is performed by a resource allocation mode management node, such as a network side device or a group header, the terminal needs to notify the resource allocation mode management node of the logical channel of the current direct communication interface or the logical channel of the current direct communication interface and the radio access technology used by each logical channel.

In order to simplify the signaling design, a packet identifier may be introduced for each packet, and the mapping relationship between the radio access technology and the packet identifier may be determined by:

such as a mapping between the agreed radio access technology and the packet identity in the pre-configured information.

such as the resource allocation pattern management node, determines the mapping relationship between the radio access technology and the packet identity and configures to the terminal through broadcast or dedicated signaling.

For example, the terminal determines the mapping relationship between the radio access technology and the grouping identifier, and reports the mapping relationship to the resource allocation mode management node through a dedicated signaling.

Example 3: the BSR.

For the BSR procedure, the correlation enhancement is mainly reflected in the following points compared to the existing NR BSR procedure:

for each packet, its BSR-related timer is maintained separately.

Specifically, the BSR Timer includes a periodic BSR Timer (periodicBSR-Timer) and a retxsbsr-Timer (retxsbsr-Timer).

For each group, independently executing Sidelink BSR triggering judgment, namely judging whether a logic channel corresponding to the group meets the Sidelink BSR triggering condition or not when the Sidelink BSR triggering is judged;

for example, for a MAC entity, the Sidelink BSR is triggered if new data arrives for a logical channel in any Logical Channel Group (LCG) of the direct communication interface and any one of the following conditions is satisfied.

The logical channel with new data arriving has higher priority than the logical channel with direct communication data in any logical channel group in the current RAT grouping;

the logic channel corresponding to any LCG in the current RAT grouping has no data;

the retxBSR-Timer corresponding to the current RAT packet is timed out, and at least one logical channel in one LCG of the direct communication interface in the RAT packet has available data.

There are two ways of organizing the sildelink BSR MAC CE:

any packet triggering the Sidelink BSR MAC CE needs to carry the corresponding buffer status information of all packets. A bitmap can be added in the Sidelink BSR MAC CE to indicate which grouped buffer area state information is carried by the Sidelink BSR MAC CE; or adding indication information in the MAC subheader corresponding to the Sidelink BSR MAC CE to indicate which packets the Sidelink BSR MAC CE carries.

And reporting the Sidelink BSR MAC CEs triggered by different groups independently, and distinguishing the corresponding groups through physical resources used by the Sidelink BSR MAC CEs on a Uu interface or through LCIDs of MAC subheaders corresponding to the Sidelink BSR MAC CEs.

Example 4: and SR.

For the SR process, the related enhancements compared to the existing NR SR process are mainly reflected in the following points:

configuring a plurality of sets of SR resources for each RAT group;

performing SR trigger judgment independently for each group, namely only when the logic channel corresponding to the group meets the Regular BSR trigger condition, allowing the SR trigger judgment;

when SR resources are independently allocated to each packet, resources used for transmitting an SR can only be selected from SR resources corresponding to RAT packets that trigger the SR.

Example 5: sildelink scheduling.

For the Sidelink scheduling process, compared with the existing LTE Sidelink interface scheduling, the enhancement point is:

indicating grouping identifiers or RAT identifiers through different SL-RNTI identifiers;

carrying a grouping identifier or a RAT identifier by PDSCH resources indicated by the Sidelink scheduling signaling or the Sidelink scheduling signaling;

indicating the grouping identification or the RAT identification through the allocated specific Silelink physical resource or the transmission carrier.

To sum up, in this embodiment of the present application, the direct communication terminal receives direct communication interface logical channel group configuration indication information sent by the resource allocation mode management node for direct communication, where the logical channel group configuration indication information can ensure that all logical channels in the same logical channel group (using the same radio access technology) use the same radio access technology. The method can ensure that the resources distributed by the direct communication resource distribution node can be matched with the wireless access technology selected by each logic channel on the direct communication interface of the terminal, thereby ensuring that the direct communication data can be sent by using a reasonable wireless access technology.

As can be seen from the foregoing embodiments, on the terminal side, referring to fig. 2, a resource allocation method provided in an embodiment of the present application includes:

s101, determining a direct communication interface resource allocation mode configured for a terminal by a resource allocation mode management node;

s102, determining groups obtained by dividing the logic channels of the direct communication interface based on the wireless access technology used by each logic channel of the direct communication interface;

s103, independently executing the related process of the direct communication interface resource allocation for each group according to the resource allocation mode.

Alternatively,

the mapping relation is pre-configured to the terminal;

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

Optionally, the BSR procedure specifically includes:

for each of the packets, maintaining a BSR-related timer for the packet;

Optionally, the SR process specifically includes:

configuring a plurality of sets of SR resources for each group;

Optionally, the Sidelink resource allocation procedure specifically includes:

Alternatively,

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

Correspondingly, on the network side, referring to fig. 3, a resource allocation method provided in an embodiment of the present application includes:

s201, configuring a direct communication interface resource allocation mode for a terminal;

s202, notifying the terminal of the resource allocation mode.

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

Optionally, the method further comprises:

Alternatively,

Optionally, the method further comprises:

The resource pool configuration information includes, for example: QOS parameters corresponding to the resource pools, the number of the resource pools, corresponding time-frequency resources and the like.

The following describes the apparatus provided in the embodiments of the present application.

On the terminal side, referring to fig. 4, a resource allocation apparatus provided in an embodiment of the present application includes:

the processor 600, which is used to read the program in the memory 620, executes the following processes:

Optionally, the processor 600 is further configured to: setting a group identifier for each group, and storing a mapping relation between a wireless access technology and the group identifier;

the processor 600 independently performs a direct communication interface resource allocation related process according to the resource allocation mode for each of the packets based on the mapping relationship.

Alternatively,

the mapping relation is pre-configured to the terminal;

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

Optionally, the BSR procedure specifically includes:

for each of the packets, maintaining a BSR-related timer for the packet;

Optionally, the SR process specifically includes:

configuring a plurality of sets of SR resources for each group;

Optionally, the Sidelink resource allocation procedure specifically includes:

Alternatively,

Optionally, the resource allocation pattern management node is a group head, and the processor 600 is further configured to: and reporting auxiliary information for assisting the group head to configure a direct communication interface resource allocation mode for the terminal to the group head.

Optionally, for the case that the Uu interface uses multiple connections, the processor 600 is further configured to:

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

A transceiver 610 for receiving and transmitting data under the control of the processor 600.

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 600 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

On the network side, referring to fig. 5, a resource allocation apparatus provided in an embodiment of the present application may be, for example, a base station, and includes:

the processor 500, which is used to read the program in the memory 520, executes the following processes:

and informing the terminal of the resource allocation mode.

Optionally, the device is a network side device or a group head.

Optionally, if the apparatus is a network side device, then:

Optionally, the auxiliary information includes:

alternatively, the radio access technology packet indication information.

Optionally, the processor 500 is further configured to:

Optionally, the processor 500 is further configured to: and setting a group identifier for each group, and storing a mapping relation between the wireless access technology and the group identifier.

Alternatively,

Optionally, the processor 500 is further configured to:

A transceiver 510 for receiving and transmitting data under the control of the processor 500.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

The resource allocation apparatus on the network side may be a resource allocation pattern management node.

On the terminal side, referring to fig. 6, another resource allocation apparatus provided in the embodiment of the present application includes:

a first unit 11, configured to determine a direct communication interface resource allocation mode configured by a resource allocation mode management node for a terminal;

a second unit 12, configured to determine, based on a radio access technology used by each logical channel of the direct communication interface, a packet obtained by dividing the logical channel of the direct communication interface;

a third unit 13, configured to independently perform a direct communication interface resource allocation related process for each of the packets according to the resource allocation mode.

On the network side, referring to fig. 7, another resource allocation apparatus provided in the embodiment of the present application includes:

a configuration unit 21, configured to configure a direct communication interface resource allocation mode for the terminal;

a notifying unit 22, configured to notify the terminal of the resource allocation mode.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. 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.

The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.

Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.

The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.

The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for resource allocation, the method comprising:

when the resource allocation mode is a network scheduling resource allocation mode, independently executing a direct communication interface resource allocation related process for each packet, specifically including one or a combination of the following processes:

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

2. The method of claim 1, further comprising: setting a group identifier for each group, and storing a mapping relation between a wireless access technology and the group identifier;

3. The method of claim 2,

the mapping relation is pre-configured to the terminal;

4. The method according to claim 1, wherein the BSR procedure specifically includes:

for each of the packets, maintaining a BSR-related timer for the packet;

5. The method of claim 4, wherein the BSR procedure further comprises organizing the Sidelink BSR media Access control element (MAC CE) in one of:

6. The method according to claim 5, wherein the sildelink BSR MAC CE triggered for any packet carries corresponding buffer status information of all packets, and specifically includes:

7. The method according to claim 1, wherein the SR process specifically comprises:

configuring a plurality of sets of SR resources for each group;

8. The method according to claim 1, wherein the Sidelink resource allocation procedure specifically includes:

9. The method of claim 8,

10. The method according to claim 1, wherein when the resource allocation mode is a terminal-selected resource allocation mode, the direct communication interface resource allocation related procedure is independently performed on each packet, and specifically includes one or a combination of the following procedures:

11. The method of claim 1, wherein the resource allocation pattern management node is a group head, the method further comprising: and reporting auxiliary information for assisting the group head to configure a direct communication interface resource allocation mode for the terminal to the group head.

12. The method of claim 1, wherein when the resource allocation pattern management node is a network side device:

13. The method of claim 12, wherein for the case where the Uu interface uses multiple connections, the method further comprises:

14. The method according to claim 11 or 13, wherein the auxiliary information comprises:

alternatively, the radio access technology packet indication information.

15. A method for resource allocation, the method comprising:

notifying the terminal of the resource allocation mode;

grouping the logical channels of the direct communication interface based on the wireless access technology used by each logical channel of the direct communication interface;

16. The method of claim 15, wherein the terminal is configured with a direct communication interface resource allocation mode by the network side device or the group head.

17. The method of claim 16, wherein if the terminal is configured with a direct communication interface resource allocation mode by the group header, the method further comprises: receiving auxiliary information reported by a terminal;

18. The method of claim 16, wherein if the network-side device configures the terminal with the direct communication interface resource allocation mode, and specifically includes:

19. The method according to claim 18, wherein the configuring, by the primary node MN or the secondary node SN, a direct communication interface resource allocation mode for the terminal specifically includes:

20. The method according to claim 19 or 19, wherein the side information comprises:

alternatively, the radio access technology packet indication information.

21. The method of claim 15, further comprising: and setting a group identifier for each group, and storing a mapping relation between the wireless access technology and the group identifier.

22. The method of claim 21,

23. A resource allocation apparatus, comprising:

a memory for storing program instructions;

a buffer reporting BSR process;

scheduling Request (SR) process;

direct communication interface sildelink resource allocation procedure.

24. The apparatus of claim 23, wherein the processor is further configured to: setting a group identifier for each group, and storing a mapping relation between a wireless access technology and the group identifier;

25. The apparatus of claim 24,

the mapping relation is pre-configured to the terminal;

26. The apparatus of claim 23, wherein the BSR procedure specifically comprises:

for each of the packets, maintaining a BSR-related timer for the packet;

27. The apparatus of claim 26, wherein the BSR procedure further comprises organizing Sidelink BSR MAC CEs in one of:

28. The apparatus according to claim 27, wherein the sildelink BSR MAC CE triggered for any packet carries corresponding buffer status information of all packets, and specifically includes:

29. The apparatus of claim 23, wherein the SR process specifically comprises:

configuring a plurality of sets of SR resources for each group;

30. The apparatus of claim 23, wherein the Sidelink resource allocation procedure specifically comprises:

31. The apparatus of claim 30,

32. The apparatus according to claim 23, wherein when the resource allocation mode is a terminal-selected resource allocation mode, the direct communication interface resource allocation related procedure is independently performed on each of the packets, and specifically includes one or a combination of the following procedures:

33. The apparatus of claim 23, wherein the resource allocation pattern management node is a group head, and wherein the processor is further configured to: and reporting auxiliary information for assisting the group head to configure a direct communication interface resource allocation mode for the terminal to the group head.

34. The apparatus of claim 23, wherein when the resource allocation pattern management node is a network side device:

35. The apparatus of claim 34, wherein for the case where the Uu interface uses multiple connections, the processor is further configured to:

36. The apparatus according to claim 33 or 35, wherein the auxiliary information comprises:

alternatively, the radio access technology packet indication information.

37. An apparatus for resource allocation, the apparatus comprising:

a memory for storing program instructions;

notifying the terminal of the resource allocation mode;

38. The apparatus of claim 37, wherein the apparatus is a network side device or a group head.

39. The apparatus of claim 38, wherein if the apparatus is a cluster head, the processor is further configured to: receiving auxiliary information reported by a terminal;

40. The apparatus of claim 38, wherein if the apparatus is a network side device:

41. The apparatus of claim 40, wherein the configuring, by the master node MN or the secondary node SN, the direct communication interface resource allocation mode for the terminal specifically comprises:

42. The apparatus according to claim 39 or 41, wherein the auxiliary information comprises:

alternatively, the radio access technology packet indication information.

43. The apparatus of claim 37, wherein the processor is further configured to: and setting a group identifier for each group, and storing a mapping relation between the wireless access technology and the group identifier.

44. The apparatus of claim 43,

45. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 22.

46. A resource allocation apparatus, comprising:

a third unit, configured to, when the resource allocation mode is a network scheduling resource allocation mode, independently perform a direct communication interface resource allocation related process on each packet, specifically including one or a combination of the following processes: a buffer reporting BSR process; scheduling Request (SR) process; direct communication interface sildelink resource allocation procedure.

47. A resource allocation apparatus, comprising:

a notifying unit configured to notify the terminal of the resource allocation pattern; grouping the logical channels of the direct communication interface based on the wireless access technology used by each logical channel of the direct communication interface; for the case that the Uu interface uses multiple connections, if the resource allocation mode is a resource allocation mode selected by the terminal, and the Radio Access Technology (RAT) used by the resource allocation mode management node is different from the RAT corresponding to the packet, the resource allocation mode management node acquires resource pool configuration information from other base stations using the RAT through an inter-base station interface; the resource allocation mode management node independently executes a direct communication interface resource allocation related process for each group according to the resource allocation mode based on the resource pool configuration information.