CN112543482A

CN112543482A - Resource allocation method during cell switching, network side equipment and terminal

Info

Publication number: CN112543482A
Application number: CN201910891072.2A
Authority: CN
Inventors: 王达; 赵亚利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2021-03-23
Also published as: WO2021051843A1

Abstract

The invention discloses a resource allocation method, network side equipment and a terminal during cell switching, which enable UE to use direct link resources of a target cell when the effective time or the effective condition is met, and do not cause the reduction or interruption of the reliability of direct link signal transmission. The method is applied to the network side equipment and comprises the following steps: and configuring the direct communication link resource to a terminal so that the terminal uses the direct communication link resource to carry out direct communication when the terminal meets the effective information corresponding to the direct communication link resource, wherein the effective information comprises effective time or effective conditions.

Description

Resource allocation method during cell switching, network side equipment and terminal

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a resource allocation method, a network side device, and a terminal for cell handover.

Background

Vehicle-to-outside information exchange (V2X) technology can sense the surrounding conditions of a vehicle in real time, share road information and perform early warning in time by means of wireless communication between vehicles, vehicle-to-drive test infrastructure, and vehicles and pedestrians.

In the existing LTE (Long Term Evolution) V2X technology (i.e., Rel-14 LTE V2X technology), PC5 interface (also called direct link, described as sildelink in the protocol) broadcast communication for transmitting data between a UE (User Equipment) and the UE can already support transmission of basic traffic based on road security.

With the further development of the car networking technology, NR (New Radio, New air interface) V2X shows some New application scenarios at present compared with LTE V2X, for example: vehicle formation, advanced driving, sensor information sharing, and remote control, when a UE is handed over from one cell (source cell) to another cell (target cell), the direct link resources used by the UE to transmit signals also require target cell reconfiguration, however, the current reconfiguration scheme requires that the UE uses a special resource pool for direct communication during the cell handover process until receiving the direct communication resource configured for the UE by the target cell, can signal using the direct communication resources configured by the target cell, and employ the resources in the randomly selected special resource pool for direct communication, if other UEs use the special resource pool for direct communication at the same time, resource selection conflicts may be caused, and transmitted signals interfere with each other, which may reduce or interrupt the reliability of the transmitted signals.

Disclosure of Invention

The invention provides a resource allocation method, network side equipment and a terminal during cell switching, which are used for enabling UE (user equipment) to use direct link resources of a target cell when the effective time or the effective condition is met during cell switching, and the reliability of direct link signal transmission is not reduced or interrupted.

In a first aspect, a method for resource allocation during cell handover provided in an embodiment of the present invention is applied to a network side device, and the method includes:

and configuring the direct communication link resource to a terminal so that the terminal uses the direct communication link resource to carry out direct communication when the terminal meets the effective information corresponding to the direct communication link resource, wherein the effective information comprises effective time or effective conditions.

The method provided by the invention is used for configuring the direct link resource to the terminal by the network side equipment when the cell is switched, and the UE judges whether the direct communication link resource can be used for direct communication according to the effective time or the effective condition corresponding to the direct link resource, thereby avoiding resource conflict of the resource in the special resource pool caused by randomly using the resource in the special resource pool for direct communication, avoiding the occurrence of the signal influencing the direct communication transmission and reducing the problem of the signal receiving reliability.

As a possible implementation, the network side device is a target network side device;

the configuring the direct communication link resource to the terminal includes:

and configuring the direct communication link resource for the terminal through the source network side equipment.

As a possible implementation manner, configuring, by a source network side device, the direct communication link resource for the terminal includes:

configuring the period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through source network side equipment; or

And configuring the period of the direct communication link resource to the terminal through the source network side equipment, and sending DCI (Downlink control information) indication information to the terminal through the source network side equipment to indicate the time domain resource and the frequency domain resource occupied by the direct communication link resource configured by the terminal.

As a possible implementation, the method further includes:

and configuring the effective information of the direct communication link resource for the terminal through the source network side equipment.

As a possible implementation, the network side device is a source network side device;

and configuring the direct communication link resource for the terminal.

As a possible implementation, the method further includes:

and receiving the direct communication link resource configured to the terminal by the target network side equipment.

As a possible implementation, the method further includes:

and configuring the effective information of the direct communication link resource for the terminal.

As a possible implementation manner, before configuring validation information of the direct communication link resource for the terminal, the method further includes:

determining validation information for the direct communication link resource; or

And receiving the effective information of the direct communication link resource sent by the target network side equipment.

As a possible implementation, the configuring the direct communication link resource for the terminal includes:

configuring the period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through a first cell switching command; or

And configuring the period of the direct communication link resource to the terminal through a first cell switching command, and sending the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through Downlink Control Information (DCI) indication information.

As a possible implementation manner, the configuring validation information of the direct communication link resource for the terminal includes:

configuring the effective information of the direct communication link resource to a terminal through a second cell switching command; or

And sending the effective information of the direct communication link resource to the terminal through the DCI indication information.

As a possible implementation, the validation time includes any one or any plurality of the following:

the terminal receives the time of the cell switching command;

the terminal sends a connection establishment request to the target network side equipment;

the terminal receives the time when the target network side equipment replies the connection establishment request;

the time when the connection between the terminal and the target network side equipment is completed;

the moment when the terminal is disconnected from the source network side equipment;

the terminal waits for the time after the set time length after receiving the cell switching command;

the terminal waits for the time after the set time length after sending a connection establishment request to the target network side equipment;

the terminal waits for the time after the set time length after receiving the connection establishment request replied by the target network side equipment;

after the connection between the terminal and the target network side equipment is completed, waiting for the time after the set time length;

and after the terminal is disconnected with the source network side equipment, waiting for the time after the set time length.

As a possible implementation, the validation condition includes:

the signal quality of the target network side equipment is greater than a preset first threshold; and/or

The signal quality of the source network side equipment is lower than a preset second threshold;

as a possible implementation manner, when any one or any plurality of the following conditions are satisfied, ending the direct communication using the direct communication link resource:

the terminal uses the direct communication link resource to carry out direct communication to reach the set use duration;

a terminal receives a direct link resource configured by network side equipment;

the terminal receives the DCI indication information.

In a second aspect, a method for resource allocation during cell handover provided in an embodiment of the present invention is applied to a terminal, and the method includes:

receiving direct communication link resources configured by network side equipment;

and when the effective information corresponding to the direct communication link resource is met, the direct communication link resource is used for direct communication, and the effective information comprises effective time or effective conditions.

As a possible implementation, the method further includes:

and receiving effective information of the direct communication link resource configured by the network side equipment.

As a possible implementation manner, receiving the direct communication link resource configured by the network side device includes:

receiving the configured period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource through a first cell switching command; or

And receiving the configured period of the direct communication link resource through a first cell switching command, and receiving a time domain resource and a frequency domain resource occupied by the direct communication link resource through Downlink Control Information (DCI) indication information.

As a possible implementation manner, the receiving validation information of the direct communication link resource configured by the network side device includes:

receiving the effective information of the configured direct communication link resource through a second cell switching command; or

Receiving validation information of the configured direct communication link resource through DCI indication information.

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

In a third aspect, an embodiment of the present invention further provides a network side device for resource configuration during cell handover, where the network side device includes a processor and a memory, the memory is used to store a program executable by the processor, and the processor is used to read the program in the memory and execute the following steps:

As a possible implementation, the network side device is a target network side device; the processor is specifically configured to:

As a possible implementation, the processor is specifically further configured to:

As a possible implementation, the network side device is a source network side device; the processor is specifically configured to:

and configuring the direct communication link resource for the terminal.

As a possible implementation, the processor is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

And the signal quality of the source network side equipment is lower than a preset second threshold.

As a possible implementation manner, the processor is specifically configured to end using the direct communication link resource for direct communication when any one or any plurality of the following conditions are met:

the terminal receives the DCI indication information.

In a fourth aspect, an embodiment of the present invention further provides a resource configuration terminal for cell handover, where the terminal includes a processor and a memory, the memory is used to store a program executable by the processor, and the processor is used to read the program in the memory and execute the following steps:

As a possible implementation, the processor is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

In a fifth aspect, an embodiment of the present invention further provides an apparatus for resource allocation during cell handover, where the apparatus includes a resource determining unit and a resource allocation unit:

the resource determining unit is used for determining the direct communication link resource corresponding to the terminal;

the resource configuration unit is configured to configure the direct communication link resource to a terminal, so that the terminal performs direct communication using the direct communication link resource when the validation information corresponding to the direct communication link resource is satisfied, where the validation information includes validation time or validation conditions.

As a possible implementation, the network side device is a target network side device; the configuration resource unit is specifically configured to:

As a possible implementation, the configuration resource unit is specifically configured to:

As a possible implementation, the apparatus further includes a first configuration validation unit configured to:

As a possible implementation, the network side device is a source network side device; the configuration resource unit is specifically configured to:

and configuring the direct communication link resource for the terminal.

As a possible implementation, the apparatus further includes means for receiving a configuration resource unit for:

As a possible implementation, the apparatus further includes a second configuration validation unit configured to:

As a possible implementation, the apparatus further includes a validation information unit configured to:

As a possible implementation manner, the second configuration validation unit is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

As a possible implementation manner, the apparatus is further configured to end the direct communication using the direct communication link resource when any one or any plurality of the following conditions are met:

the terminal receives the DCI indication information.

In a sixth aspect, an embodiment of the present invention further provides another apparatus for resource allocation during cell handover, where the apparatus includes: receiving a configuration resource unit, using the configuration resource unit, wherein:

the receiving configuration resource unit is used for receiving the direct communication link resource configured by the network side equipment;

the use configuration resource unit is configured to use the direct communication link resource for direct communication when validation information corresponding to the direct communication link resource is satisfied, where the validation information includes validation time or validation conditions.

As a possible implementation, the apparatus further includes a receive validation information unit configured to:

As a possible implementation manner, the receiving configuration resource unit is specifically configured to:

As a possible implementation manner, the receive validation information unit is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

In a seventh aspect, an embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, where the computer program is used to implement the steps of the method in the first aspect or the second aspect when executed by a processor.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

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

Fig. 1 is a schematic diagram of a direct communication scenario according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a system for allocating resources during cell handover according to an embodiment of the present invention;

fig. 3 is a schematic diagram of resource allocation during cell handover according to an embodiment of the present invention;

fig. 4 is a schematic view of resource allocation during cell handover according to another embodiment of the present invention;

fig. 5 is a flowchart of resource allocation during cell handover applied to a terminal according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a resource allocation network device during cell handover according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a resource allocation terminal during cell handover according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an apparatus for resource allocation during cell handover according to an embodiment of the present invention;

fig. 9 is a schematic diagram of another apparatus for resource allocation during cell handover according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The resource allocation method for cell switching provided by the embodiment of the invention can be applied to network side equipment and can also be applied to a terminal.

It should be noted that the terminal is a device with a wireless communication function, and can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), etc.; but also UEs in various forms, Mobile Stations (MSs), the terminal equipment (terminal device).

The network side device may be a 4G base station, such as LTE, ng-eNB, or may also be a gbb, en-gbb, macro base station, micro base station, CU (Central Unit) or DU (Distributed Unit) in 5G.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The application scenario described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by a person skilled in the art that with the occurrence of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems.

The following first introduces a related background for direct communication:

as shown in fig. 1, direct communication between devices is allowed between a device 100 and a device 101 that are close to each other, and for convenience of description, a direct communication link between the device 100 and the device 101 is defined as a Sidelink link, and a corresponding wireless interface thereof is referred to as a direct communication interface (also referred to as a Sidelink interface); a cellular communication link between the network side device 102 and the direct communication device is referred to as a Uu link, and an interface corresponding to the Uu link between the network side device 102 and the direct communication device is referred to as a Uu interface. The devices for direct communication may all be on-line, or off-line, or part of the devices may be on-line and part of the devices off-line, where the devices on-line indicate that the devices participating in direct communication are located within the coverage of the communication carrier of the 3GPP base station, and the devices off-line indicate that the devices participating in direct communication are not within the coverage of the communication carrier of the 3GPP base station.

A typical direct communication scenario includes three ways:

unicast transmission mode: namely, one-to-one communication between direct communication terminals;

multicast transmission mode: that is, one device can transmit the same data to all devices in one communication group at a time;

a broadcast transmission mode: that is, one device can send the same data to all nearby devices at a time, and it should be noted that the LTE system only supports broadcast transmission.

When the UE moves from the source cell to the target cell, a cell handover may be performed, where the handover process may include the following stages:

a switching preparation stage: the method comprises the steps that a source base station receives a report sent by UE according to a preset measurement rule, whether the UE needs to perform cell switching is determined according to the report and Radio Resource Management (RRM) information, when the UE needs to perform cell switching is determined, the source base station sends a switching request message to a target base station, and the target base station executes admission control according to received QoS information.

A switching execution stage: when the UE performs cell handover, the source base station sends a cell handover command to the UE, and when the UE receives the cell handover command and initiates a request for establishing a connection with the target cell, the UE needs to use a special resource pool (explicit resource pool) to perform direct communication, and cannot use resources configured by the target cell to send signals until receiving resources configured by the target cell for the UE.

In the above-mentioned process of cell switching, when the UE performs direct communication on the special resource pool, the UE transmits signals in a manner of randomly selecting resources to perform direct communication, that is, randomly selects one resource on the special resource pool to transmit signals, and if other UEs also randomly select resources on the special resource pool to transmit signals at the same time, resource selection conflicts may be caused, the transmitted signals interfere with each other, and the reliability of signal reception is reduced.

Example 1

In order to solve the above technical problem, the present invention provides a resource allocation method during cell handover, which can be applied to a system, where the system includes a network side device and a terminal, and the following describes implementation steps of the system:

as shown in fig. 2, the system includes a network side device 200 and a terminal 201, wherein:

the network side equipment is used for configuring direct communication link resources to a terminal so that the terminal uses the direct communication link resources to carry out direct communication when the terminal meets effective information corresponding to the direct communication link resources, wherein the effective information comprises effective time or effective conditions;

the terminal is used for receiving the direct communication link resource configured by the network side equipment; and when the effective information corresponding to the direct communication link resource is met, the direct communication link resource is used for direct communication, and the effective information comprises effective time or effective conditions.

As an optional implementation manner, when applied to the Uu interface of the NR system in this embodiment, the manner in which the network side device configures the direct communication link resource for the terminal is as follows:

mode 1(Type 1): configuring a set of resources used by the UE, including but not limited to: periodic resources, time domain resources and frequency domain resources occupied by the resources, periods occupied by the resources, and the like. If the resource is configured for the UE, the UE may use the resource to send a signal, and in this manner, the resource is activated while the resource is configured for the UE, so that the UE may use the resource.

Mode 2(Type 2): a set of resources used by the UE is configured, the set of resources including periodic resources. However, the UE is configured with the resource, and the UE still cannot use the resource, and when receiving the DCI indication information, the UE activates the resource to use the resource, and when not receiving the DCI indication information (not activated), the UE cannot use the resource. It should be noted that, in the signaling for configuring the resource, only information such as the period of the resource is configured, and time domain and frequency domain resources occupied by the resource are not configured, and the time domain and frequency domain resources occupied by the resource are activated through DCI indication information.

The network side device in this embodiment includes a target network side device and a source network side device, where the source network side device is a network side device corresponding to a source cell where a terminal is located, and the target network side device is a network side device corresponding to a target cell to which the terminal is switched.

The target network side device is configured to configure the direct communication link resource for the terminal through the source network side device, and optionally, may also configure the effective information of the direct communication link resource for the terminal through the source network side device.

In implementation, the target network side device first sends the direct communication link resource configured for the terminal to the source network side device, or simultaneously sends the effective information of the direct communication link resource configured for the terminal to the source network side device, when the source network side device receives the direct communication link resource sent by the target network side device, the direct communication link resource is sent to the terminal, and similarly, when the source network side device receives the effective information of the direct communication link resource sent by the target network side device, the effective information is sent to the terminal.

In implementation, the sending, by the target network side device, the direct communication link resource configured for the terminal to the source network side device includes: the period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource, optionally, the target network side device sends the direct communication link resource configured for the terminal to the source network side device through the indication information;

after receiving direct communication link resources sent by target network side equipment, source network side equipment can configure the period of the direct communication link resources, time domain resources occupied by the direct communication link resources and frequency domain resources to the terminal through a first cell switching command; or configuring the period of the direct communication link resource to the terminal through a first cell switching command, and sending the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through Downlink Control Information (DCI) indication information;

optionally, after receiving the effective information of the direct communication link resource sent by the target network side device, the source network side device may configure the effective information of the direct communication link resource to the terminal through the second cell switching command; the information about the validity of the direct communication link resource may also be sent to the terminal through the DCI indication information, and it should be noted that the first cell switching command and the second cell switching command in this embodiment may be the same cell switching command or different cell switching commands.

Optionally, the source network side device may also determine, by itself, the validation information of the direct communication link resource, and may configure, by using the second cell switching command, the validation information of the direct communication link resource to the terminal; the information about the validity of the direct communication link resource may also be sent to the terminal through the DCI indication information, and it should be noted that the first cell switching command and the second cell switching command in this embodiment may be the same cell switching command or different cell switching commands.

Optionally, after the source network-side device receives the direct communication link resource and the validation information of the direct communication link resource sent by the target network-side device, or after the source network-side device determines the validation information of the direct communication link resource, for the configuration mode of type1, the source network-side device sends the direct communication link resource and the validation information to the terminal through the cell switching command, and for the configuration mode of type2, the source network-side device sends the period and the validation information of the direct communication link resource through the cell switching command, and sends information such as the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through DCI indication information.

It should be noted that the validation information of the direct communication link resource may be configured by the target network side device to the terminal through the source network side device, or may be configured by the source network side device to the terminal directly. The validation information of the direct communication link resource is configured to the terminal through the cell switching command.

The following describes the configuration modes of the target network side device and the source network side device for configuring the direct communication link resource for the terminal respectively.

1) The network side equipment is target network side equipment.

And the target network side equipment is used for configuring the direct communication link resource for the terminal through the source network side equipment.

In implementation, the configuration mode of the target network side device configuring the direct communication link resource for the terminal through the source network side device includes Type1 and Type 2.

If the direct communication link resource is configured for the terminal through Type1, that is, the target network side device configures the period of the direct communication link resource, the time domain resource occupied by the direct communication link resource, and the frequency domain resource to the terminal through the source network side device.

Optionally, the target network side device sends, to the source network side device, the period of the direct communication link resource configured for the terminal, and the time domain resource and the frequency domain resource occupied by the direct communication link resource, through the indication information.

Optionally, the source network side device configures validation information of the direct communication link resource for the terminal, that is, sends the configured direct communication link resource to the source network side device, and sends the validation information to the source network side device. Optionally, the signaling used by the configured direct communication link resource sent to the source network side device and the signaling used by the sent validation information may be the same signaling or different signaling, and this embodiment is not limited to the above.

If the direct communication link resource is configured for the terminal through Type2, the target network side device configures the period of the direct communication link resource to the terminal through the source network side device, and sends downlink control information DCI indication information to the terminal through the source network side device to indicate the time domain resource and the frequency domain resource occupied by the direct communication link resource configured by the terminal.

Optionally, the source network side device configures validation information of the direct communication link resource for the terminal, that is, the target network side device sends the configured direct communication link resource to the source network side device, and the target network side device sends the validation information to the source network side device.

Optionally, the target network side device sends, to the source network side device, validation information of the direct communication link resource configured for the terminal through the indication information.

The indication information in this embodiment is different from the DCI indication information, and the indication information is different from or the same as the cell switching command.

2) The network side equipment is source network side equipment.

The source network side device may directly configure the direct communication link resource for the terminal.

The configuration mode of the source network side device for configuring the direct communication link resource for the terminal comprises Type1 and Type 2.

If the direct communication link resource is configured for the terminal through the Type1, the source network side device configures the period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through a first cell switching command; and configuring the effective information of the direct communication link resource to the terminal through a second cell switching command.

The direct communication link resource configured to the terminal may be directly determined by the source network side device, or may be a direct communication link resource that is configured to the terminal by the target network side device and received by the source network side device.

The effective information of the direct communication link resource may be determined by the source network side device, or may be the effective information of the direct communication link resource that is sent by the target network side device and received by the source network side device.

If the direct communication link resource is configured for the terminal through Type2, the source network side device configures the period of the direct communication link resource to the terminal through a first cell switching command, and sends the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through Downlink Control Information (DCI) indication information; and the effective information of the direct communication link resource can be configured for the terminal in the following two ways:

The first cell switching command and the second cell switching command in this embodiment may be the same signaling or different signaling, and this embodiment is not limited to this.

3) For the terminal side

On one hand, the method comprises the steps of receiving direct communication link resources configured by network side equipment; on the other hand, the method is configured to receive validation information of the direct communication link resource configured by the network side device, where the validation information may be configured by the target network side device for the terminal through the source network side device, or may be configured by the source network side device for the terminal directly.

Optionally, the direct communication link resource configured by the network side device is received in any one of the following manners:

mode 1) receiving the configured period of the direct communication link resource, the time domain resource and the frequency domain resource occupied by the direct communication link resource through a first cell switching command;

mode 2) receives the configured period of the direct communication link resource through the first cell switching command, and receives the time domain resource and the frequency domain resource occupied by the direct communication link resource through the downlink control information DCI indication information.

Optionally, the validation information of the direct communication link resource configured by the network side device is received in any one of the following manners:

receiving the effective information of the configured direct communication link resource through a second cell switching command;

The first cell switching command and the second cell switching command may be the same signaling or different signaling, and this embodiment is not limited to this.

The effective time in this embodiment includes any one or more of the following:

the terminal receives the time of the cell switching command;

The validation conditions in this embodiment include:

optionally, in this embodiment, a duration of the terminal using the direct communication link resource to perform the direct communication is not fixed, and specifically, the terminal may end using the direct communication link resource to perform the direct communication when any one or any plurality of following conditions are met:

the terminal receives the DCI indication information.

Optionally, the DCI indication information is deactivation indication information of the direct link resource.

As an optional implementation manner, the signal quality in this embodiment includes any one or more of the following:

reference Signal Received Power (RSRP);

reference Signal Receiving Quality (RSRQ);

Signal-to-Interference plus Noise Ratio (RS-SINR);

channel State Information (CSI);

the signal quality of the beam.

Example 2

As shown in fig. 3, the following describes an interaction procedure between the target network side device, the source network side device, and the terminal in this embodiment by taking an example of configuring the direct communication link resource by using Type1 as the terminal.

Step 300, the target network side equipment sends the direct communication link resource configured for the terminal to the source network side equipment through the indication information;

optionally, the indication information carries effective information for configuring the direct communication link resource for the terminal.

Step 301, the source network side device sends the direct communication link resource and the effective information of the direct communication link resource to the terminal.

Wherein, the direct communication link resource and the effective information are sent to the terminal by a cell handover command (handover command).

Optionally, if the target network device does not send the validation information for configuring the direct communication link resource for the terminal, the source network device may determine the validation information for configuring the direct communication link resource for the terminal and configure the validation information to the terminal.

Step 302, the terminal receives the configured direct communication link resource, and uses the direct communication link resource to perform direct communication when the validation information corresponding to the direct communication link resource is satisfied.

Example 3

As shown in fig. 4, the following describes an interaction procedure between the target network side device, the source network side device, and the terminal in this embodiment by taking an example of configuring the direct communication link resource by using Type2 as the terminal.

Step 400, the target network side device sends the period of the direct communication link resource configured for the terminal and the time domain resource and the frequency domain resource occupied by the direct communication link resource to the source network side device through the indication information;

optionally, the target network side device sends, to the source network side device, validation information for configuring the direct communication link resource for the terminal through the indication information.

Step 401, a source network side device configures a period of the direct communication link resource to the terminal through a first cell switching command;

optionally, the source network side device sends, to the terminal, the time domain resource and the frequency domain resource occupied by the direct communication link resource through the first cell switching command;

step 402, the source network side device sends the effective information of the direct communication link resource to the terminal through the second cell switching command.

Step 403, the source network side device sends the time domain resource and the frequency domain resource occupied by the direct communication link resource to the terminal through the downlink control information DCI indication information;

optionally, the DCI indication information carries effective information of the direct communication link resource.

Step 404, the terminal receives the configured direct communication link resource, and uses the direct communication link resource to perform direct communication when the validation information corresponding to the direct communication link resource is satisfied.

Example 4

The embodiment of the invention provides a resource allocation method during cell switching, which is applied to network side equipment and comprises the following steps:

As a possible implementation, the method further includes:

and configuring the direct communication link resource for the terminal.

As a possible implementation, the method further includes:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the signal quality of the target network side equipment is higher than a preset first threshold; and/or

the terminal receives the DCI indication information.

Example 5

As shown in fig. 5, an embodiment of the present invention provides a resource allocation method for cell handover, which is applied to a terminal, and the method includes:

step 500, receiving a direct communication link resource configured by a network side device;

step 501, when the validation information corresponding to the direct communication link resource is satisfied, using the direct communication link resource to perform direct communication, where the validation information includes validation time or validation conditions.

As a possible implementation, the method further includes:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

Example 6

Based on the same inventive concept, the embodiment of the present invention further provides a resource configuration network side device during cell handover, and as the network side device is a device corresponding to the method in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are not repeated.

As shown in fig. 6, the network-side device includes: a processor 600 and a memory 601, wherein the memory 601 is used for storing programs executable by the processor 600, and the processor 600 is used for reading the programs in the memory 601 and executing the following steps:

As a possible implementation, the network side device is a target network side device; the processor 600 is specifically configured to:

As a possible implementation, the processor 600 is further specifically configured to:

As a possible implementation, the network side device is a source network side device; the processor 600 is specifically configured to:

and configuring the direct communication link resource for the terminal.

As a possible implementation, the processor 600 is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

as a possible implementation manner, the processor 600 is specifically configured to end using the direct communication link resource for direct communication when any one or any multiple of the following conditions are met:

the terminal receives the DCI indication information.

Example 7

Based on the same inventive concept, the embodiment of the present invention further provides a resource allocation terminal during cell handover, and since the terminal is a terminal corresponding to the method in the embodiment of the present invention, and the principle of the terminal for solving the problem is similar to the method, the implementation of the terminal may refer to the implementation of the method, and repeated details are not repeated.

As shown in fig. 7, the terminal includes: a processor 700 and a memory 701, the memory 701 is used for storing programs executable by the processor 700, the processor 700 is used for reading the programs in the memory 701 and executing the following steps:

As a possible implementation, the processor 700 is specifically further configured to:

As a possible implementation, the processor 700 is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

as a possible implementation manner, the processor 700 is specifically configured to end the direct communication using the direct communication link resource when any one or more of the following conditions are met:

the terminal receives the DCI indication information.

Example 8

Based on the same inventive concept, the embodiment of the present invention further provides a device for resource allocation during cell handover, and as the device is a device corresponding to the method in the embodiment of the present invention, and the principle of the device for solving the problem is similar to that of the method, the implementation of the device may refer to the implementation of the method, and repeated details are omitted.

As shown in fig. 8, the apparatus includes a resource determination unit 800 and a configuration resource unit 801:

the resource determining unit 800 is configured to determine a direct communication link resource corresponding to a terminal;

the resource configuration unit 801 is configured to configure the direct communication link resource to a terminal, so that the terminal performs direct communication using the direct communication link resource when the validation information corresponding to the direct communication link resource is satisfied, where the validation information includes validation time or validation conditions.

As a possible implementation, the network side device is a target network side device; the configuration resource unit 801 is specifically configured to:

As a possible implementation manner, the configuration resource unit 801 is specifically configured to:

As a possible implementation, the network side device is a source network side device; the configuration resource unit 801 is specifically configured to:

and configuring the direct communication link resource for the terminal.

As a possible implementation manner, the apparatus further includes a receiving configuration resource unit 801 configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

Example 9

Based on the same inventive concept, another apparatus for resource allocation during cell handover is also provided in the embodiments of the present invention, and since the apparatus is an apparatus corresponding to the method in the embodiments of the present invention, and the principle of the apparatus for solving the problem is similar to the method, the implementation of the apparatus may refer to the implementation of the method, and repeated details are not repeated.

As shown in fig. 9, the apparatus includes: receiving a configuration resource unit 900, using a configuration resource unit 901, wherein:

the receiving configuration resource unit 900 is configured to receive a direct communication link resource configured by a network side device;

the use configuration resource unit 901 is configured to use the direct communication link resource to perform direct communication when validation information corresponding to the direct communication link resource is satisfied, where the validation information includes validation time or validation condition.

As a possible implementation manner, the receiving configuration resource unit 900 is specifically configured to:

the terminal receives the time of the cell switching command;

As a possible implementation, the validation condition includes:

the terminal receives the DCI indication information.

The present embodiments also provide a computer storage medium, which when executed by a processor, performs the steps of the method:

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, 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, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

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

Claims

1. A resource allocation method in cell switching is characterized in that the method is applied to network side equipment and comprises the following steps:

2. The method of claim 1, wherein the network-side device is a target network-side device;

3. The method according to claim 2, wherein configuring the direct communication link resource for the terminal by the source network side device comprises:

4. The method of claim 2, further comprising:

5. The method of claim 1, wherein the network-side device is a source network-side device;

and configuring the direct communication link resource for the terminal.

6. The method of claim 5, further comprising:

7. The method of claim 5, further comprising:

8. The method of claim 7, wherein before configuring the validation information of the direct communication link resource for the terminal, further comprising:

9. The method of claim 5, wherein the configuring the direct communication link resource for the terminal comprises:

10. The method according to claim 7, wherein the configuring the validation information of the direct communication link resource for the terminal comprises:

11. A method according to any one of claims 1 to 10, wherein the validation time comprises any one or more of:

the terminal receives the time of the cell switching command;

12. The method according to any one of claims 1 to 10, wherein the validation condition comprises:

13. The method of claim 1, wherein the direct communication using the direct communication link resource is terminated when any one or more of the following conditions are met:

the terminal receives the DCI indication information.

14. A resource allocation method in cell switching is characterized in that the method is applied to a terminal and comprises the following steps:

15. The method of claim 14, further comprising:

16. The method of claim 14, wherein receiving the direct communication link resource configured by the network side device comprises:

17. The method of claim 15, wherein receiving validation information of the direct communication link resource configured by the network side device comprises:

18. A method according to any one of claims 14 to 17, wherein the validation time comprises any one or more of:

the terminal receives the time of the cell switching command;

19. The method according to any one of claims 14 to 17, wherein the validation condition comprises:

20. The method of claim 14, wherein the direct communication using the direct communication link resource is terminated when any one or more of the following conditions are met:

the terminal receives the DCI indication information.

21. A network side device for resource allocation during cell handover, the network side device comprising a processor and a memory, wherein the memory is used for storing a program executable by the processor, and the processor is used for reading the program in the memory and executing the steps of the method according to any one of claims 1 to 13.

22. A terminal for allocating resources during cell handover, the terminal comprising a processor and a memory, the memory being configured to store a program executable by the processor, and the processor being configured to read the program from the memory and to perform the steps of the method according to any one of claims 14 to 20.

23. A computer storage medium having a computer program stored thereon, the program, when executed by a processor, implementing the steps of a method according to any one of claims 1 to 13; or the steps of the method of any one of claims 14 to 20.