WO2021051843A1

WO2021051843A1 - Method for resource configuration during cell handover, network side device and terminal

Info

Publication number: WO2021051843A1
Application number: PCT/CN2020/091122
Authority: WO
Inventors: 王达; 赵亚利
Original assignee: 大唐移动通信设备有限公司
Priority date: 2019-09-20
Filing date: 2020-05-19
Publication date: 2021-03-25
Also published as: CN112543482A

Abstract

A method for resource configuration during cell handover, a network side device and a terminal. The method comprises: configuring a direct communication link resource to a terminal so that when meeting effective information corresponding to the direct communication link resource, the terminal uses the direct communication link resource for direct communication, wherein the effective information comprises an effective time or effective condition, so that a UE can use a direct link resource of a target cell when the effective time or effective condition is met, thereby not reducing or interrupting the reliability of direct link signal transmission.

Description

Resource configuration method, network side equipment and terminal during cell handover

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 20, 2019, the application number is 201910891072.2, and the application name is "a method for resource allocation during cell handover, network side equipment and terminals", all of which The content is incorporated in this application by reference.

Technical field

This application relates to the field of wireless communication technology, and in particular to a resource configuration method, network side equipment and terminal during cell handover.

Background technique

Vehicle-to-everything (V2X) technology can use wireless communications between vehicles, vehicles and road test infrastructure, and vehicles and passersby to perceive the surrounding conditions of vehicles in real time, share road information, and provide timely warnings.

In the existing Long Term Evolution (LTE) V2X technology (ie Rel-14 LTE V2X technology), the PC5 interface (also known as the direct link) that transmits data between the User Equipment (UE) and the UE Road, the protocol is described as Sidelink) broadcast communication can already support the transmission of basic road safety-based services.

With the further development of Internet of Vehicles technology, New Radio (NR) V2X is currently compared to LTE V2X, and some new application scenarios have emerged, such as: vehicle formation, advanced driving, sensor information sharing, and remote control applications. When the UE is handed over from one cell (source cell) to another cell (target cell), the direct link resources used by the UE for signal transmission also need to be reconfigured by the target cell, but the current reconfiguration scheme requires the UE In the process of cell handover, the special resource pool is used for direct communication. Until the direct communication resource configured by the target cell for the UE is received, the direct communication resource configured by the target cell can be used to send signals, and the special resource pool is randomly selected. Resources communicate directly. If other UEs also use special resource pools to communicate directly at the same time, resource selection conflicts may occur, the transmitted signals interfere with each other, and the reliability of the transmission signal is reduced or interrupted.

Summary of the invention

This application provides a resource configuration method, network side equipment, and terminal during cell handover, which are used to enable the UE to use the direct link resources of the target cell when the effective time or the effective conditions are met during the cell handover, without causing The reliability of signal transmission through the direct link is reduced or interrupted.

In the first aspect, a resource configuration method during cell handover provided by an embodiment of the present application is applied to a network side device, and the method includes:

The direct communication link resource is configured to the terminal, so that the terminal uses the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or Effective conditions.

The method provided in this application is used for the network side device to configure the direct link resource to the terminal during the cell handover, and the UE determines whether the direct communication link can be used according to the effective time or the effective condition corresponding to the direct link resource The resources communicate directly, thereby avoiding resource conflicts in the special resource pool caused by randomly using the resources in the special resource pool for direct communication, so that there will be no problems that affect the signal sent by direct communication and reduce the reliability of signal reception. .

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

The configuration of direct communication link resources to the terminal includes:

The direct communication link resource is configured for the terminal through the source network side device.

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

Configure 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 the source network side device; or

Configure the cycle of the direct communication link resource to the terminal through the source network side device, and send Downlink Control Information (DCI) indication information to the terminal through the source network side device to indicate the direct communication configured by the terminal Time domain resources and frequency domain resources occupied by link resources.

As a possible implementation manner, it also includes:

Configure the effective information of the direct communication link resource for the terminal through the source network side device.

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

Configure the direct communication link resource for the terminal.

As a possible implementation manner, it also includes:

Receive the direct communication link resource configured by the target network side device to the terminal.

As a possible implementation manner, it also includes:

Configure the effective information of the direct communication link resource for the terminal.

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

Determining the effective information of the direct communication link resource; or

Receiving the effective information of the direct communication link resource sent by the target network side device.

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

Configure the period of the direct communication link resources, the time domain resources and the frequency domain resources occupied by the direct communication link resources to the terminal through the first cell handover command; or

Configure the period of the direct communication link resource to the terminal through the first cell handover command, and send the time domain resources and frequency domain resources occupied by the direct communication link resource to the terminal through downlink control information DCI indication information .

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

Configure the effective information of the direct communication link resource to the terminal through the second cell handover command; or

The effective information of the direct communication link resource is sent to the terminal through the DCI indication information.

As a possible implementation manner, the effective moment includes any one or more of the following:

The time when the terminal receives the cell handover command;

The time when the terminal sends a connection establishment request to the target network side device;

The time when the terminal receives the connection establishment request from the target network side device;

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

The moment when the terminal is disconnected from the source network side device;

The terminal waits for the time after the set time period after receiving the cell handover command;

The terminal waits for the set time period after sending a connection establishment request to the target network side device;

The terminal waits for the time after the set time period after receiving the response from the target network side device to the connection establishment request;

The time after the terminal and the target network side device have established a connection and wait for the set time period;

The terminal waits for the set time period after disconnecting from the source network side device.

As a possible implementation manner, the effective conditions include:

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

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

As a possible implementation manner, when any one or more of the following conditions are met, the direct communication using the direct communication link resource is ended:

The terminal uses the direct communication link resource to perform direct communication to reach the set use time period;

The terminal receives the direct link resource configured by the network side device;

The terminal receives the DCI indication information.

In the second aspect, a resource configuration method during cell handover provided by an embodiment of the present application is applied to a terminal, and the method includes:

Receive direct communication link resources configured by the network side device;

When the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication, and the effective information includes the effective time or the effective condition.

As a possible implementation manner, it also includes:

Receiving the effective information of the direct communication link resource configured by the network side device.

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 the first cell handover command; or

The configured period of the direct communication link resource is received through the first cell handover command, and the time domain resource and the frequency domain resource occupied by the direct communication link resource are received through downlink control information DCI indication information.

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

Receiving the configured effective information of the direct communication link resource through the second cell handover command; or

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

In a third aspect, the embodiments of the present application also provide a network-side device for resource configuration during cell handover. The network-side device includes a processor and a memory. The memory is used to store a program executable by the processor. The device is used to read the program in the memory and execute the following steps:

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

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

Configure the period of the direct communication link resource to the terminal through the source network side device, and send downlink control information DCI indication information to the terminal through the source network side device to indicate the time when the direct communication link resource configured by the terminal is occupied Domain resources and frequency domain resources.

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

Configure the direct communication link resource for the terminal.

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The signal quality of the source network side device is lower than the 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 more of the following conditions are met:

The terminal receives the DCI indication information.

In a fourth aspect, an embodiment of the present application also provides a resource configuration terminal during cell handover. 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 executes the following steps:

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

In a fifth aspect, an embodiment of the present application also provides a device for resource configuration during cell handover. The device includes a resource determination unit and a resource configuration unit:

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

The configuration resource unit is configured to configure the direct communication link resource to the terminal, so that the terminal uses the direct communication link resource to perform direct communication when the effective information corresponding to the direct communication link resource is satisfied. In communication, the effective information includes effective time or effective conditions.

As a possible implementation manner, the network side device is a target network side device; the configuration resource unit is specifically used for:

As a possible implementation manner, the configuration resource unit is specifically used for:

As a possible implementation manner, the device further includes a first configuration validating unit for:

As a possible implementation manner, the network side device is a source network side device; the configuration resource unit is specifically used for:

Configure the direct communication link resource for the terminal.

As a possible implementation manner, the device further includes a receiving configuration resource unit for:

As a possible implementation manner, the device further includes a second configuration validating unit for:

As a possible implementation manner, the device further includes a validating information unit for:

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

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

The terminal receives the DCI indication information.

In the sixth aspect, the embodiment of the invention also provides another device for resource configuration during cell handover. The device includes: receiving a configuration resource unit and using a configuration resource unit, wherein:

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

The use configuration resource unit is configured to use the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or the effective condition.

As a possible implementation manner, the device further includes a valid information receiving unit for:

As a possible implementation manner, the receiving configuration resource unit is specifically used for:

As a possible implementation manner, the effective receiving information unit is specifically configured to:

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

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

These and other aspects of the present application will be more concise and understandable in the description of the following embodiments.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative labor, other drawings can be obtained based on these drawings.

FIG. 1 is a schematic diagram of a direct communication scenario provided by an embodiment of the application;

2 is a schematic diagram of a resource configuration system during cell handover provided by an embodiment of the application;

FIG. 3 is a schematic diagram of resource configuration during cell handover according to an embodiment of the application;

FIG. 4 is a schematic diagram of another resource configuration during cell handover provided by an embodiment of this application;

FIG. 5 is a flow chart of resource configuration applied to a terminal during cell handover according to an embodiment of the application;

FIG. 6 is a schematic diagram of a network-side device for resource configuration during cell handover according to an embodiment of this application;

FIG. 7 is a schematic diagram of a resource configuration terminal during cell handover according to an embodiment of the application;

FIG. 8 is a schematic diagram of a device for resource configuration during cell handover according to an embodiment of this application;

FIG. 9 is a schematic diagram of another device for resource configuration during cell handover provided by an embodiment of this application.

detailed description

In order to make the purpose, technical solutions, and advantages of the application more clear, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments. . Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The method for resource configuration during cell handover provided by the embodiment of the present application may be applied to a network side device and may also be applied to a terminal.

It should be noted that the terminal is a device with wireless communication function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (For example, airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, an industrial control The wireless terminal in (industrial control), the wireless terminal in unmanned driving (self-driving), the wireless terminal in remote medical, the wireless terminal in smart grid (smart grid) , The wireless terminal in transportation safety, the wireless terminal in smart city, the wireless terminal in smart home, etc.; it can also be various forms of UE, A mobile station (mobile station, MS), the terminal device (terminal device).

The network side device may be a 4G base station, such as LTE, eLTE, ng-eNB, etc., or may be gNB, en-gNB, macro base station, micro base station, centralized unit (CU) or distributed 5G Unit (Distributed Unit, DU), etc.

The term "and/or" in the embodiments of the present application describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone These three situations. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

The application scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. Those of ordinary skill in the art will know that as new application scenarios change It appears that the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

The following first introduces the relevant background of direct communication:

As shown in Figure 1, the device 100 and the device 101 that are close to each other allow direct communication between devices. For ease of description, the direct communication link between the device 100 and the device 101 is defined as a Sidelink link, which corresponds to The wireless interface is called the direct communication interface (also called the Sidelink interface); the cellular communication link between the network-side device 102 and the direct communication device is called Uulink, and the Uulink between the network-side device 102 and the direct communication device The corresponding interface is called Uu interface. Among them, the direct communication devices may all be on the network, or all off the network, or some devices may be on the network, and some devices may be off the network. The device on the network means that the devices participating in direct communication are located on the 3GPP base station communication carrier. In the coverage area, the device being offline indicates that the device participating in direct communication is not within the coverage area of the communication carrier of the 3GPP base station.

Typical direct communication scenarios include the following three methods:

Unicast transmission mode: One-to-one communication between direct communication terminals;

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

Broadcast transmission mode: That is, a device can send the same data to all nearby devices at one time. 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 is performed. The handover process may include the following stages:

Handover preparation stage: The source base station receives the report sent by the UE according to the predetermined measurement rules, and determines whether the UE needs cell handover according to the report and Radio Resource Management (RRM) information. When it is determined that the UE needs to perform cell handover, the source base station Send a handover request message to the target base station, and the target base station performs admission control according to the received Quality of Service (QoS) information.

Handover execution phase: When the UE performs cell handover, the source base station sends a cell handover command to the UE. When the UE receives the cell handover command and initiates a connection establishment request with the target cell, it needs to use an exceptional resource pool for direct communication After receiving the resources configured by the target cell for the UE, the resources configured by the target cell can be used to send signals.

In the cell handover process mentioned above, when the UE performs direct communication on the special resource pool, it sends signals by randomly selecting resources for direct communication, that is, randomly selects a resource on the special resource pool to send signals, if there are other resources at the same time. The UE also randomly selects resources to send signals in a special resource pool, which may cause resource selection conflicts, and the sent signals interfere with each other, which reduces the reliability of signal reception.

Example 1

In order to solve the above technical problems, this application proposes a resource configuration method during cell handover, which can be applied to a system that includes network-side equipment and terminals. The implementation steps of the system are described below:

As shown in Figure 2, the system includes a network side device 200 and a terminal 201, where:

The network side device is used to configure the direct communication link resources to the terminal, so that the terminal uses the direct communication link resources for direct communication when meeting the effective information corresponding to the direct communication link resources. The effective information includes the effective time or effective conditions;

The terminal is configured to receive the direct communication link resource configured by the network side device; when the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication, and the effective information includes the effective information. Time or effective conditions.

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

Manner 1 (Type 1): Configure a resource set used by the UE. The resource set includes but is not limited to: periodic resources, time domain resources and frequency domain resources occupied by the resources, and cycles occupied by the resources. If the resource is configured for the UE, the UE can use the resource to send a signal. In this manner, the resource is activated when the resource is configured for the UE, and the UE can use it.

Manner 2 (Type 2): Configure a resource set used by the UE, and the resource set includes periodic resources. However, only the UE is configured with the resource, and the UE still cannot use the resource. When receiving the DCI indication information, the resource is activated and the terminal can use it. When the DCI indication information is not received (not activated), the UE cannot Use this 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 the time domain and frequency domain resources occupied by the resource are not configured. 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 the network side device corresponding to the source cell where the terminal is located, and the target network side device is the target cell where the terminal is handed over. Corresponding network side equipment.

The target network side device is used to configure the direct communication link resource for the terminal through the source network side device. Optionally, the source network side device can also configure the effective information of the direct communication link resource for the terminal.

In implementation, the target network side device first sends the direct communication link resource configured for the terminal to the source network side device, and can also send the effective information of the direct communication link resource configured for the terminal to the source network side device at the same time. When the device receives the direct communication link resource sent by the target network side device, it sends the direct communication link resource to the terminal. Similarly, when the source network side device receives the direct communication link resource sent by the target network side device When validating information, the validating information is sent to the terminal.

In implementation, the direct communication link resource configured for the terminal sent by the target network side device 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 instruction information;

After the source network side device receives the direct communication link resource sent by the target network side device, it can configure the period of the direct communication link resource and the amount occupied by the direct communication link resource to the terminal through the first cell handover command. Time domain resources and frequency domain resources; it is also possible to configure the period of the direct communication link resource to the terminal through the first cell handover command, and send the direct communication link to the terminal through downlink control information DCI indication information Time domain resources and frequency domain resources occupied by resources;

Optionally, after the source network side device receives the effective information of the direct communication link resource sent by the target network side device, it may configure the effective information of the direct communication link resource to the terminal through the second cell handover command; or The effective information of the direct communication link resource is sent to the terminal through the DCI indication information. It should be noted that the first cell handover command and the second cell handover command in this embodiment may be the same cell handover command or It is a different cell handover command.

Optionally, the source network side device may also determine the effective information of the direct communication link resource by itself, and may configure the effective information of the direct communication link resource to the terminal through the second cell handover command; or may indicate the information through the DCI The effective information of the direct communication link resource is sent to the terminal. It should be noted that the first cell handover command and the second cell handover command in this embodiment can be the same cell handover command, or they can be different cells. Switch command.

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

It should be noted that the effective 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 directly configured by the source network side device to the terminal. The effective information of the direct communication link resource is configured to the terminal through a cell handover command.

The configuration methods for the target network-side device and the source network-side device to configure direct communication link resources for the terminal are separately described below.

1) The network side device is a target network side device.

The target network side device is used to configure the direct communication link resource for the terminal through the source network side device.

In an implementation, the configuration mode for the target network side device to configure the direct communication link resource for the terminal through the source network side device includes Type 1 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 direct communication link resource cycle and the time domain occupied by the direct communication link resource to the terminal through the source network side device Resources and frequency domain resources.

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 resources and frequency domain resources occupied by the direct communication link resource through the instruction information.

Optionally, the effective information of the direct communication link resource is configured for the terminal through the source network side device, that is, the configured direct communication link resource is sent to the source network side device, and the source network side device is sent to the source network side device. Effective information. Optionally, the signaling used for the configured direct communication link resource sent to the source network side device and the signaling used for the sent validation information may be the same signaling or different Signaling, this embodiment does not limit too much.

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 to the terminal through the source network side device The information DCI indicates information to indicate time domain resources and frequency domain resources occupied by the direct communication link resources configured by the terminal.

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 resources and frequency domain resources occupied by the direct communication link resource to the source network side device through the instruction information.

Optionally, the effective information of the direct communication link resource is configured for the terminal through the source network side device, 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 Send the effective information to the source network side device.

Optionally, the target network side device sends the effective information of the direct communication link resource configured for the terminal to the source network side device through instruction 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 handover command.

2) The network side device is the source network side device.

The source network side device can directly configure direct communication link resources for the terminal.

The configuration mode for the source network side device to configure the direct communication link resource for the terminal includes Type1 and Type2.

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

The direct communication link resource configured to the terminal may be directly determined by the source network side device, or the source network side device may receive the direct communication link resource configured to the terminal by the target network side device.

The effective information of the direct communication link resource may be determined by the source network side device, or the source network side device may receive the effective information of the direct communication link resource sent by the target 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 the first cell handover command, and sends the direct communication link resource to the terminal through the downlink control information DCI indication information. The terminal sends the time domain resources and frequency domain resources occupied by the direct communication link resources; the effective information of the direct communication link resources can be configured for the terminal in the following two ways:

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

3) For the terminal side

On the one hand, it is used to receive the direct communication link resource configured by the network side device; on the other hand, it is used to receive the effective information of the direct communication link resource configured by the network side device, where the effective information may be the target network side. The device is configured for the terminal through the source network side device, or it may be directly configured for the terminal by the source network side device.

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

Manner 1) 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 are received through a first cell handover command;

Manner 2) The configured period of the direct communication link resource is received through the first cell handover command, and the time domain resource and the frequency domain resource occupied by the direct communication link resource are received through downlink control information DCI indication information.

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

Receiving the configured effective information of the direct communication link resource through a second cell handover command;

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

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

The time when the terminal receives the cell handover command;

The effective conditions in this embodiment include:

Optionally, in this embodiment, the time period for the terminal to use the direct communication link resource for direct communication is not fixed. Specifically, it may end using the direct communication link when any one or more of the following conditions are met: Direct communication with resources:

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 Receiving Power (RSRP);

Reference Signal Receiving Quality (RSRQ);

Signal to interference plus noise ratio (Reference Signal-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 uses Type1 to configure the direct communication link resource for the terminal as an example to describe the interaction process between the target network side device, the source network side device, and the terminal in this embodiment.

Step 300: The target network side device sends the direct communication link resource configured for the terminal to the source network side device through the instruction 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 effective information are sent to the terminal through a cell handover command (handover command).

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

Step 302: The terminal receives the configured direct communication link resource, and when the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication.

Example 3

As shown in FIG. 4, the following uses Type 2 to configure the direct communication link resource for the terminal as an example to describe the interaction process between the target network side device, the source network side device, and the terminal in this embodiment.

Step 400: 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 resources and frequency domain resources occupied by the direct communication link resource to the source network side device through the instruction information;

Optionally, the target network side device sends the effective information for configuring the direct communication link resource for the terminal to the source network side device through instruction information.

Step 401: The source network side device configures the period of the direct communication link resource to the terminal through a first cell handover command.

Optionally, the source network side device sends the time domain resources and frequency domain resources occupied by the direct communication link resources to the terminal through the first cell handover 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 handover command.

Step 403: The source network side device sends the time domain resources and frequency domain resources occupied by the direct communication link resources to the terminal through 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 when the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication.

Example 4

The embodiment of the present application provides a resource configuration method during cell handover, which is applied to a network side device, and the method includes:

Configure the direct communication link resource for the terminal through the source network side device.

As a possible implementation manner, it also includes:

Configure the direct communication link resource for the terminal.

As a possible implementation manner, it also includes:

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

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

The terminal receives the DCI indication information.

Example 5

As shown in FIG. 5, an embodiment of the present application provides a resource configuration method during cell handover, which is applied to a terminal, and the method includes:

Step 500: Receive a direct communication link resource configured by a network side device;

Step 501: When the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication, and the effective information includes the effective time or the effective condition.

As a possible implementation manner, it also includes:

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

Example 6

Based on the same inventive concept, the embodiment of this application also provides a network-side device for resource configuration during cell handover. Because the network-side device is a device corresponding to the method in the embodiment of this application, and the principle of the device to solve the problem is the same as that The methods are similar, so the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

As shown in FIG. 6, the network side device includes a processor 600 and a memory 601. The memory 601 is used to store a program executable by the processor 600, and the processor 600 is used to read And perform the following steps:

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

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

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

Configure the direct communication link resource for the terminal.

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

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 more of the following conditions are met:

The terminal receives the DCI indication information.

Example 7

Based on the same inventive concept, the embodiment of this application also provides a resource configuration terminal during cell handover. Since the terminal is a terminal corresponding to the method in the embodiment of this application, and the principle of the terminal to solve the problem is similar to that of the method, The implementation of the terminal can refer to the implementation of the method, and the repetition will not be repeated.

As shown in FIG. 7, the terminal includes: a processor 700 and a memory 701, the memory 701 is used to store a program executable by the processor 700, and the processor 700 is used to read the program in the memory 701 And perform the following steps:

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

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

As a possible implementation manner, the processor 700 is specifically configured to end using the direct communication link resource for direct communication 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 this application also provides a device for resource configuration during cell handover. Because this device is a device corresponding to the method in the embodiment of this application, and the principle of the device to solve the problem is similar to the method. Therefore, the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

As shown in FIG. 8, the device includes a resource determining unit 800 and a resource configuring unit 801:

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

The configuration resource unit 801 is configured to configure the direct communication link resource to the terminal, so that the terminal uses the direct communication link resource to perform when the effective information corresponding to the direct communication link resource is satisfied. In direct communication, the effective information includes effective time or effective conditions.

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

Configure the direct communication link resource for the terminal.

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

Example 9

Based on the same inventive concept, the embodiment of the present application also provides another device for resource configuration during cell handover, because this device is a device corresponding to the method in the embodiment of the present application, and the principle of the device to solve the problem is similar to the method. Therefore, the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

As shown in FIG. 9, the device includes: a receiving configuration resource unit 900 and a using configuration resource unit 901, where:

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

The use configuration resource unit 901 is configured to use the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or the effective condition.

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

The time when the terminal receives the cell handover command;

As a possible implementation manner, the effective conditions include:

The terminal receives the DCI indication information.

This embodiment also provides a computer storage medium, which implements the steps of the following method when the program is executed by the processor:

The foregoing describes the present application with reference to block diagrams and/or flowcharts illustrating methods, devices (systems) and/or computer program products according to embodiments of the present application. It should be understood that one block of the block diagram and/or flowchart diagram and a combination of the blocks in the block diagram and/or flowchart diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, and/or other programmable data processing devices to produce a machine, so that the instructions executed via the computer processor and/or other programmable data processing device are created for A method of implementing the functions/actions specified in the block diagrams and/or flowchart blocks.

Correspondingly, this application can also be implemented by hardware and/or software (including firmware, resident software, microcode, etc.). Furthermore, this application can take the form of a computer program product on a computer-usable or computer-readable storage medium, which has a computer-usable or computer-readable program code implemented in the medium to be used or used by the instruction execution system. Used in conjunction with the instruction execution system. In the context of this application, a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, transmit, or transmit a program for use by an instruction execution system, apparatus, or device, or in combination with an instruction execution system, Device or equipment use.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

A resource configuration method during cell handover is applied to a network side device, and the method includes:

The direct communication link resource is configured to the terminal, so that the terminal uses the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or Effective conditions.
The method according to claim 1, wherein the network side device is a target network side device;

The configuration of direct communication link resources to the terminal includes:

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

Configure 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 the source network side device; or

Configure the period of the direct communication link resource to the terminal through the source network side device, and send downlink control information DCI indication information to the terminal through the source network side device to indicate the time when the direct communication link resource configured by the terminal is occupied Domain resources and frequency domain resources.
The method according to claim 2, further comprising:

Configure the effective information of the direct communication link resource for the terminal through the source network side device.
The method according to claim 1, wherein the network side device is a source network side device;

The configuration of direct communication link resources to the terminal includes:

Configure the direct communication link resource for the terminal.
The method according to claim 5, further comprising:

Receive the direct communication link resource configured by the target network side device to the terminal.
The method according to claim 5, further comprising:

Configure the effective information of the direct communication link resource for the terminal.
The method according to claim 7, wherein before configuring the effective information of the direct communication link resource for the terminal, the method further comprises:

Determining the effective information of the direct communication link resource; or

Receiving the effective information of the direct communication link resource sent by the target network side device.
The method according to claim 5, wherein the configuring the direct communication link resource for the terminal comprises:

Configure the period of the direct communication link resources, the time domain resources and the frequency domain resources occupied by the direct communication link resources to the terminal through the first cell handover command; or

Configure the period of the direct communication link resource to the terminal through the first cell handover command, and send the time domain resources and frequency domain resources occupied by the direct communication link resource to the terminal through downlink control information DCI indication information .
The method according to claim 7, wherein the configuring the effective information of the direct communication link resource for the terminal comprises:

Configure the effective information of the direct communication link resource to the terminal through the second cell handover command; or

The effective information of the direct communication link resource is sent to the terminal through the DCI indication information.
The method according to any one of claims 1-10, wherein the effective moment includes any one or more of the following:

The time when the terminal receives the cell handover command;

The time when the terminal sends a connection establishment request to the target network side device;

The time when the terminal receives the connection establishment request from the target network side device;

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

The moment when the terminal is disconnected from the source network side device;

The terminal waits for the time after the set time period after receiving the cell handover command;

The terminal waits for the set time period after sending a connection establishment request to the target network side device;

The terminal waits for the time after the set time period after receiving the response from the target network side device to the connection establishment request;

The time after the terminal and the target network side device have established a connection and wait for the set time period;

The terminal waits for the set time period after disconnecting from the source network side device.
The method according to any one of claims 1-10, wherein the effective condition comprises:

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

The signal quality of the source network side device is lower than the preset second threshold.
The method according to claim 1, wherein when any one or more of the following conditions are met, ending the direct communication using the direct communication link resource:

The terminal uses the direct communication link resource to perform direct communication to reach the set use time period;

The terminal receives the direct link resource configured by the network side device;

The terminal receives the DCI indication information.
A resource configuration method during cell handover is applied to a terminal, and the method includes:

Receive direct communication link resources configured by the network side device;

When the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication, and the effective information includes the effective time or the effective condition.
The method according to claim 14, further comprising:

Receiving the effective information of the direct communication link resource configured by the network side device.
The method according to claim 14, wherein receiving the direct communication link resource configured by the network side device comprises:

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 the first cell handover command; or

The configured period of the direct communication link resource is received through the first cell handover command, and the time domain resource and the frequency domain resource occupied by the direct communication link resource are received through downlink control information DCI indication information.
The method according to claim 15, wherein receiving the effective information of the direct communication link resource configured by the network side device comprises:

Receiving the configured effective information of the direct communication link resource through the second cell handover command; or

Receiving the configured effective information of the direct communication link resource through the DCI indication information.
The method according to any one of claims 14-17, wherein the effective moment includes any one or more of the following:

The time when the terminal receives the cell handover command;

The time when the terminal sends a connection establishment request to the target network side device;

The time when the terminal receives the connection establishment request from the target network side device;

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

The moment when the terminal is disconnected from the source network side device;

The terminal waits for the time after the set time period after receiving the cell handover command;

The terminal waits for the set time period after sending a connection establishment request to the target network side device;

The terminal waits for the time after the set time period after receiving the response from the target network side device to the connection establishment request;

The time after the terminal and the target network side device have established a connection and wait for the set time period;

The terminal waits for the set time period after disconnecting from the source network side device.
The method according to any one of claims 14-17, wherein the effective condition comprises:

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

The signal quality of the source network side device is lower than the preset second threshold.
The method according to claim 14, wherein when any one or more of the following conditions are met, ending the direct communication using the direct communication link resource:

The terminal uses the direct communication link resource to perform direct communication to reach the set use time period;

The terminal receives the direct link resource configured by the network side device;

The terminal receives the DCI indication information.
A network side device for resource configuration during cell handover, the network side device including 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 direct communication link resource is configured to the terminal, so that the terminal uses the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or Effective conditions.
The network side device according to claim 21, wherein the network side device is a target network side device; and the processor is specifically configured to:

Configure the direct communication link resource for the terminal through the source network side device.
The network side device according to claim 22, wherein the processor is specifically configured to:

Configure 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 the source network side device; or

Configure the period of the direct communication link resource to the terminal through the source network side device, and send downlink control information DCI indication information to the terminal through the source network side device to indicate the time when the direct communication link resource configured by the terminal is occupied Domain resources and frequency domain resources.
The network side device according to claim 22, the processor is further configured to:

Configure the effective information of the direct communication link resource for the terminal through the source network side device.
The network side device according to claim 21, wherein the network side device is a source network side device; and the processor is specifically configured to:

Configure the direct communication link resource for the terminal.
The network side device according to claim 25, the processor is further configured to:

Receive the direct communication link resource configured by the target network side device to the terminal.
The network side device according to claim 25, the processor is further configured to:

Configure the effective information of the direct communication link resource for the terminal.
The network side device according to claim 27, wherein, before configuring the effective information of the direct communication link resource for the terminal, the processor is further configured to:

Determining the effective information of the direct communication link resource; or

Receiving the effective information of the direct communication link resource sent by the target network side device.
The network side device according to claim 25, wherein the processor is specifically configured to:

Configure the period of the direct communication link resources, the time domain resources and the frequency domain resources occupied by the direct communication link resources to the terminal through the first cell handover command; or

Configure the period of the direct communication link resource to the terminal through the first cell handover command, and send the time domain resources and frequency domain resources occupied by the direct communication link resource to the terminal through downlink control information DCI indication information .
The network side device according to claim 27, wherein the processor is specifically configured to:

Configure the effective information of the direct communication link resource to the terminal through the second cell handover command; or

The effective information of the direct communication link resource is sent to the terminal through the DCI indication information.
The network side device according to any one of claims 21-30, wherein the effective moment includes any one or more of the following:

The time when the terminal receives the cell handover command;

The time when the terminal sends a connection establishment request to the target network side device;

The time when the terminal receives the connection establishment request from the target network side device;

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

The moment when the terminal is disconnected from the source network side device;

The terminal waits for the time after the set time period after receiving the cell handover command;

The terminal waits for the set time period after sending a connection establishment request to the target network side device;

The terminal waits for the time after the set time period after receiving the response from the target network side device to the connection establishment request;

The time after the terminal and the target network side device have established a connection and wait for the set time period;

The terminal waits for the set time period after disconnecting from the source network side device.
The network side device according to any one of claims 21-30, wherein the effective condition includes:

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

The signal quality of the source network side device is lower than the preset second threshold.
The network side device according to claim 21, wherein when any one or more of the following conditions are met, the direct communication using the direct communication link resource is ended:

The terminal uses the direct communication link resource to perform direct communication to reach the set use time period;

The terminal receives the direct link resource configured by the network side device;

The terminal receives the DCI indication information.
A terminal for resource configuration during cell handover. 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:

Receive direct communication link resources configured by the network side device;

When the effective information corresponding to the direct communication link resource is satisfied, the direct communication link resource is used for direct communication, and the effective information includes the effective time or the effective condition.
According to the terminal according to claim 34, the processor is further configured to:

Receiving the effective information of the direct communication link resource configured by the network side device.
The terminal according to claim 34, wherein the processor is specifically configured to:

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 the first cell handover command; or

The configured period of the direct communication link resource is received through the first cell handover command, and the time domain resource and the frequency domain resource occupied by the direct communication link resource are received through downlink control information DCI indication information.
The terminal according to claim 35, wherein the processor is specifically configured to:

Receiving the configured effective information of the direct communication link resource through the second cell handover command; or

Receiving the configured effective information of the direct communication link resource through the DCI indication information.
The terminal according to any one of claims 34 to 37, wherein the effective moment includes any one or more of the following:

The time when the terminal receives the cell handover command;

The time when the terminal sends a connection establishment request to the target network side device;

The time when the terminal receives the connection establishment request from the target network side device;

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

The moment when the terminal is disconnected from the source network side device;

The terminal waits for the time after the set time period after receiving the cell handover command;

The terminal waits for the set time period after sending a connection establishment request to the target network side device;

The terminal waits for the time after the set time period after receiving the response from the target network side device to the connection establishment request;

The time after the terminal and the target network side device have established a connection and wait for the set time period;

The terminal waits for the set time period after disconnecting from the source network side device.
The terminal according to any one of claims 34 to 37, wherein the effective condition includes:

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

The signal quality of the source network side device is lower than the preset second threshold.
The terminal according to claim 34, wherein when any one or more of the following conditions are met, the direct communication ends using the direct communication link resources:

The terminal uses the direct communication link resource to perform direct communication to reach the set use time period;

The terminal receives the direct link resource configured by the network side device;

The terminal receives the DCI indication information.
A resource configuration device during cell handover, the device includes a resource determining unit and a resource configuration unit:

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

The configuration resource unit is configured to configure the direct communication link resource to the terminal, so that the terminal uses the direct communication link resource to perform direct communication when the effective information corresponding to the direct communication link resource is satisfied. In communication, the effective information includes effective time or effective conditions.
The apparatus according to claim 41, wherein the network side device is a target network side device; and the configuration resource unit is specifically configured to:

The direct communication link resource is configured for the terminal through the source network side device.
The device according to claim 41, wherein the configuration resource unit is specifically configured to:

Configure 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 the source network side device; or

Configure the period of the direct communication link resource to the terminal through the source network side device, and send downlink control information DCI indication information to the terminal through the source network side device to indicate the time when the direct communication link resource configured by the terminal is occupied Domain resources and frequency domain resources.
The device according to claim 42, wherein the device further comprises a first configuration validating unit for:

Configure the effective information of the direct communication link resource for the terminal through the source network side device.
A device for resource configuration during cell handover, the device includes: receiving a configuration resource unit and using a configuration resource unit, wherein:

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

The use configuration resource unit is configured to use the direct communication link resource for direct communication when the effective information corresponding to the direct communication link resource is satisfied, and the effective information includes the effective time or the effective condition.
The device according to claim 45, wherein the device further comprises a valid information receiving unit for:

Receiving the effective information of the direct communication link resource configured by the network side device.
The apparatus according to claim 45, wherein the receiving configuration resource unit is specifically configured to:

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 the first cell handover command; or

The configured period of the direct communication link resource is received through the first cell handover command, and the time domain resource and the frequency domain resource occupied by the direct communication link resource are received through downlink control information DCI indication information.
The device according to claim 46, wherein the receiving effective information unit is specifically configured to:

Receiving the configured effective information of the direct communication link resource through the second cell handover command; or

Receiving the configured effective information of the direct communication link resource through the DCI indication information.
A computer storage medium with a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 13; or the steps of any one of claims 14 to 20.