CN117528554A

CN117528554A - Method and device for processing data transmission of direct communication interface

Info

Publication number: CN117528554A
Application number: CN202210886069.3A
Authority: CN
Inventors: 时洁; 张惠英; 赵亚利
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2024-02-06
Also published as: WO2024021953A1

Abstract

The disclosure provides a direct communication interface data transmission processing method and device, and relates to the technical field of communication. The method of the present disclosure comprises: acquiring measurement configuration information; measuring the channel of the unlicensed spectrum of the direct link according to the measurement configuration information; and reporting the measurement result obtained by measurement. The NR-U configured by the gNB in the scheme disclosed by the disclosure is not applicable to the problem of reducing the communication quality of SL.

Description

Method and device for processing data transmission of direct communication interface

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a direct communication interface data transmission processing method and device.

Background

With the technical solution, the adjacent terminals can perform data transmission through a direct communication link (also called as a direct link (SL) or a PC 5) in a short range, so as to implement direct communication. Currently, for SL, new Radio unlicensed spectrum (NR-U) and multi-carrier technology are introduced, i.e. SL UEs can use multi-carrier and NR-U channels for data transmission.

Disclosure of Invention

The prior art does not support the base station gNB to obtain the channel quality of the NR-U (SL-U for short) of the SL, and therefore, the gNB may configure the NR-U with a higher channel busy rate, which affects the communication quality of the SL. The disclosure aims to provide a method and a device for processing data transmission of a direct communication interface, which are used for solving the problem that the communication quality of SL is reduced due to inapplicability of NR-U configured by gNB.

In order to achieve the above object, an embodiment of the present disclosure provides a method for processing data transmission of a direct communication interface, which is applied to a terminal, and includes:

acquiring measurement configuration information;

measuring the channel of the unlicensed spectrum of the direct link according to the measurement configuration information;

and reporting the measurement result obtained by measurement.

Optionally, the measurement configuration information includes at least one of:

a first threshold for through link unlicensed spectrum received signal strength evaluation;

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

and the second identification information of the target layer of the direct link.

Optionally, the reporting the measurement result obtained by the measurement includes:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

Optionally, the event triggering reporting includes at least one of the following:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

Detecting that the channel quality of the channel is above a third threshold;

it is detected that the fluctuation of the channel is greater than a fourth threshold.

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the measurement result is reported based on a measurement identifier, or frequency information of an unlicensed spectrum.

Optionally, the acquiring measurement configuration information includes:

and receiving the measurement configuration information sent by the first equipment through the system message and/or the RRC dedicated signaling.

In order to achieve the above object, an embodiment of the present disclosure further provides a direct communication interface data transmission processing method, which is applied to a first device, including:

and receiving a measurement result reported by a terminal, wherein the measurement result is a measurement result related to the unlicensed spectrum of the through link.

Optionally, before the receiving the measurement result reported by the terminal, the method further includes:

and sending measurement configuration information, wherein the measurement configuration information is used for measuring the channel of the unlicensed spectrum of the through link by the terminal.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the measurement result reported by the receiving terminal includes:

receiving the measurement result reported by the terminal based on the reporting period; or,

and receiving the measurement result reported by the terminal based on the event which triggers reporting.

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

Unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the measurement result is reported based on a measurement identity or frequency information of an unlicensed spectrum.

Optionally, after receiving the measurement result reported by the terminal, the method further includes: at least one of the following:

determining whether the direct communication uses a channel of unlicensed spectrum;

information about the channel of the unlicensed spectrum that is used is determined.

Optionally, after the measurement result reported by the receiving terminal, the method further includes:

and sending the unlicensed spectrum related information of the through link and/or the target layer two identification information of the through link of the terminal to the second equipment.

Optionally, the through link unlicensed spectrum related information includes at least one of:

the measurement result reported by the terminal;

whether the terminal supports communication in the unlicensed spectrum of the through link;

whether the channel of the unlicensed spectrum of the through link is used;

and the use information of unlicensed spectrum of the through link of the terminal. ( SJ: the text describes that the usage information includes information whether carrier wave/BWP of unlicensed spectrum is used, activated or deactivated )

Optionally, the method for sending the unlicensed spectrum related information of the through link and/or the target layer two identification information of the through link of the terminal to the second device includes:

Transmitting a switching request message between base stations; or,

and sending a text response message of the retrieval terminal.

To achieve the above object, an embodiment of the present disclosure further provides a terminal, including: memory, transceiver, processor: a memory for storing program instructions; a transceiver for transceiving data under control of the processor; a processor for reading the program instructions in the memory and performing the following operations:

acquiring measurement configuration information;

the transceiver is also configured to perform the following operations:

and reporting the measurement result obtained by measurement.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the transceiver is further configured to:

reporting the measurement result based on a reporting period; or,

And reporting the measurement result based on the event triggering reporting.

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the transceiver is further configured to:

To achieve the above object, an embodiment of the present disclosure further provides a direct communication interface data transmission processing device, including:

the acquisition module is used for acquiring measurement configuration information;

the measurement module is used for measuring the channel of the unlicensed spectrum of the direct link according to the measurement configuration information;

And the reporting module is used for reporting the measurement result obtained by measurement.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the reporting module is further configured to:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

Unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the acquiring module is further configured to:

In order to achieve the above object, an embodiment of the present disclosure further provides a direct communication interface data transmission processing device, including: memory, transceiver, processor: a memory for storing program instructions; a transceiver for transceiving data under control of the processor; a processor for reading the program instructions in the memory, the transceiver for performing the following operations:

Optionally, the transceiver is further configured to:

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the transceiver is further configured to:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the processor is further configured to perform at least one of:

Optionally, the transceiver is further configured to:

the measurement result reported by the terminal;

whether the channel of the unlicensed spectrum of the through link is used;

and the use information of unlicensed spectrum of the through link of the terminal.

Optionally, the transceiver is further configured to: transmitting a switching request message between base stations; or,

and sending a text response message of the retrieval terminal.

In order to achieve the above object, an embodiment of the present disclosure further provides a direct communication interface data transmission processing device, including:

And the receiving module is used for receiving the measurement result reported by the terminal, wherein the measurement result is related to the unlicensed spectrum of the direct link.

Optionally, the apparatus further comprises:

and the first sending module is used for sending measurement configuration information, wherein the measurement configuration information is used for measuring the channel of the unlicensed spectrum of the through link by the terminal.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the receiving module is further configured to:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

Detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the apparatus further comprises:

a processing module for performing at least one of:

Optionally, the apparatus further comprises:

and the second sending module is used for sending the unlicensed spectrum related information of the through link and/or the target layer two identification information of the through link of the terminal to the second equipment.

the measurement result reported by the terminal;

Whether the channel of the unlicensed spectrum of the through link is used;

Optionally, the second sending module is further configured to: transmitting a switching request message between base stations; or,

and sending a text response message of the search terminal.

To achieve the above object, the embodiments of the present disclosure further provide a processor-readable storage medium storing program instructions for causing the processor to execute the direct communication interface data transmission processing method as described above.

The technical scheme of the disclosure has at least the following beneficial effects:

according to the method, after the measurement configuration information is obtained, the measurement of the SL-U channel can be carried out according to the measurement configuration information, and therefore the measurement result obtained by measurement is reported to the first device, so that the first device can know the SL-U channel condition according to the measurement result, and carry out adaptive SL transmission configuration for the terminal, and the influence on the SL communication quality is avoided.

Drawings

FIG. 1 is one of the flow diagrams of the method of an embodiment of the present disclosure;

FIG. 2 is one of the application schematics of the method of the embodiments of the present disclosure;

FIG. 3 is a second schematic application of the method according to the embodiment of the present disclosure;

FIG. 4 is a third application diagram of the method according to the embodiment of the present disclosure;

FIG. 5 is a second flow chart of a method according to an embodiment of the disclosure;

fig. 6 is a block diagram of a terminal according to an embodiment of the present disclosure;

FIG. 7 is one of the block schematic diagrams of the apparatus of an embodiment of the present disclosure;

FIG. 8 is a block diagram of an apparatus of an embodiment of the present disclosure;

FIG. 9 is a second block diagram of an apparatus according to an embodiment of the disclosure.

Detailed Description

The term "and/or" in the embodiments of the present disclosure describes an association relationship of association objects, which indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The prior art does not support the base station gNB to obtain the channel quality of the NR-U (SL-U for short) of the SL, and therefore, the gNB may configure the NR-U with a higher channel busy rate, which affects the communication quality of the SL. The embodiment of the disclosure provides a direct communication interface data transmission processing method and device. The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

It should be appreciated that in embodiments of the present disclosure, the "at least one item" may be one or a combination of any of a plurality of items.

As shown in fig. 1, a method for processing data transmission of a direct communication interface according to an embodiment of the present disclosure is applied to a terminal, and includes:

step 101, obtaining measurement configuration information.

Here, the measurement configuration information may be network-side device configuration or predefined. The measurement configuration information is used for the terminal to perform measurement of a channel of a direct link-unlicensed spectrum (SL-U), and can also be understood as measurement report configuration information of an NR-U channel of the SL interface, so that the terminal reports channel quality of the SL-U channel.

And 102, measuring the channel of the unlicensed spectrum of the through link according to the measurement configuration information.

In this step, the terminal performs measurement of the channel of the unlicensed spectrum SL-U of the through link according to the measurement configuration information obtained in step 101.

And step 103, reporting the measurement result obtained by measurement.

In this step, the terminal reports the SL-U related measurement result obtained in the step 102 to the first device.

In this way, after obtaining the measurement configuration information according to the steps 101-103, the terminal can measure the SL-U channel according to the measurement configuration information, and thus report the measurement result obtained by the measurement to the first device, so that the first device can know the SL-U channel condition according to the measurement result, and perform adaptive SL transmission configuration for the terminal, thereby avoiding affecting the SL communication quality.

It should be appreciated that, in this embodiment, the terminal performing the method of the embodiment of the present disclosure may be a transmission terminal (Tx UE) of SL, and the first device may be a source base station of the terminal, or may be a base station or a terminal serving as a parent node. Of course, the terminal performing the method of the embodiment of the present disclosure may be a receiving terminal (Rx UE) of SL, and the first device may be a source base station of the terminal, or may be a base station or a terminal serving as a parent node, where the first device needs to interact the measurement result with the source base station or the parent node of the Tx UE in order to perform adaptive SL transmission configuration.

The data transmission processing method for the direct communication interface provided by the embodiment of the disclosure comprises the following steps:

optionally, the step of acquiring measurement configuration information includes:

the measurement configuration information sent by the first device via system messages and/or radio resource control (Radio Resource Control, RRC) dedicated signaling is received.

For example, the first device, such as a base station, configures the measurement configuration information to the Tx UE using a system message and/or RRC dedicated signaling.

Of course, the measurement configuration information may also use other dedicated signaling, not limited to RRC.

Optionally, in some embodiments, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

a BandWidth Part (BWP) of the unlicensed spectrum of the through link;

reporting the period;

triggering a reported event;

identification (ID) information of a target layer of the through link.

Here, one of the carrier, the frequency point, and the BWP of the SL-U is used to indicate the target SL-U of the terminal measurement. The reporting period is used for indicating the terminal to report the measurement result periodically. And the event triggering reporting is used for indicating the terminal to report the measurement result based on the occurrence of the event.

The first threshold is a channel occupancy threshold based on received signal strength (Received Signal Strength Indicator, RSSI). So that the terminal reports RSSI and/or channel occupancy information (Channel Occupation, CO).

Where RSSI represents the linear average of the sample values provided by the bottom layer;

CO represents the percentage of all samples that exceeds the configured channel occupancy threshold. The channel occupancy threshold value configured herein may be represented by a first threshold value for through-link unlicensed spectrum received signal strength evaluation; the first threshold may be included in reporting period information in the measurement configuration information or in event information in the measurement configuration information that triggers reporting.

The measurement configuration information may include target L2ID information of SL, source L2ID information, or a PC5 link identified by a combination of both.

optionally, in some embodiments, the step of reporting the measurement result obtained by the measurement includes:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

Here, the reporting period may be indicated by the measurement configuration information or predefined. The event triggering reporting may also be indicated by the measurement configuration information or predefined.

optionally, in some embodiments, the event triggering reporting includes at least one of:

the channel experiences listen before talk (Listen Before Talk, LBT) failure;

the channel is subject to radio link failure (Radio Link Failure, RLF) of the through link;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Here, the second threshold, the third threshold, and the fourth threshold may be predefined or configured by the network as reporting threshold values.

Here, the LBT failure may be one LBT failure, or a plurality of consecutive LBT failures, or the number of LBT failures within a contracted time reaches a threshold. The specific value, which is consecutively multiple times, may be configured to the UE by the base station or parent node, or may be a predefined value. The contracted time and or threshold may also be configured to the UE by the base station or parent node, or be a predefined value.

Optionally, in some embodiments, the measurement comprises at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Here, RSSI and/or CO are SL-U channels, where RSSI may be a linear average of samples provided by the bottom layer and CO may be a percentage of samples of all samples that exceed a configured channel occupancy threshold (e.g., a first threshold).

In this way, if the measurement configuration information indicates an event triggering reporting, the terminal may perform at least one of the following:

reporting the measurement result of the SL-U channel, such as RSSI and/or CO measurement result, when the SL-U channel fails in LBT;

reporting the measurement result of the SL-U channel, such as RSSI and/or CO measurement result, when the SL-U channel has SL RLF;

reporting a measurement result of the SL-U channel, such as RSSI and/or CO measurement result, when the channel quality of the SL-U channel is detected to be lower than the second threshold value;

reporting a measurement result of the SL-U channel, such as RSSI and/or CO measurement result, when detecting that the channel quality of one SL-U channel is higher than the third threshold;

and when detecting that the fluctuation of one SL-U channel is larger than the fourth threshold value, reporting the measurement result of the SL-U channel, such as RSSI and/or CO measurement result.

Wherein, the measurement identifier (measurement ID) may indicate one measurement object, such as NR-U of a specific frequency/carrier/BWP/sub-band, and may also indicate measurement configuration information of the corresponding measurement object. That is, when the terminal reports the measurement result, the measurement result (such as RSSI and/or CO measurement result) related to the measurement ID is reported to the first device.

Or when the terminal reports the measurement result, the measurement result (such as RSSI and or CO measurement result) related to one NR-U frequency is reported to the first equipment.

Of course, the measurement result may also be reported based on carrier information, BWP information, subband information, etc. of the NR-U, which is not listed here.

It should be noted that, after the first device receives the measurement result reported by the terminal, at least one of the following may be executed:

Here, the related information of the channel of the unlicensed spectrum (NR-U channel) may include frequency information, carrier information, BWP information, subband information, and the like.

It should be noted that, for channels of unlicensed spectrum, when used for through links, they may be referred to as SL-U channels.

In addition, optionally, after receiving the measurement result reported by the terminal, the method further includes:

Here, the first device interacts with the second device with SL-U related information of the terminal and/or the target L2ID of the SL, so that the second device is able to perform at least one of the following for a subsequent possible handover of the terminal: determining whether to switch; it is decided whether the accessed terminal performs communication using the SL-U at the SL interface or not, or information of the SL-U used, such as BWP/sub-band, etc.

The second device may be a target primary base station or a target secondary base station.

Optionally, in some embodiments, the through link unlicensed spectrum related information includes at least one of:

the measurement result reported by the terminal;

whether the channel of the unlicensed spectrum of the through link is used;

The usage information includes information whether the carrier wave/BWP of the unlicensed spectrum is used, activated or deactivated.

Optionally, in some embodiments, the manner in which the first device sends the through link unlicensed spectrum related information and/or the target layer two identification information of the through link of the terminal to the second device includes:

transmitting a switching request message between base stations; or,

and sending a text response message of the retrieval terminal.

The first equipment sends switching request information between base stations to the second equipment, wherein the switching request information carries through link unlicensed spectrum related information of the terminal and/or target layer two identification information of the through link; or the first device sends a search terminal text response message to the second device, wherein the search terminal text response message carries the through link unlicensed spectrum related information and/or the target layer two identification information of the through link of the terminal.

The application of the method of the embodiments of the present disclosure is described below in conjunction with specific scenarios:

scenario one, a first device such as a base station (gNB/parent node) configures whether a SL-U channel correlation is active or inactive in a carrier aggregation scenario in a SL mode1 mode (gNB allocates resources for wireless communication to the SL interface), as shown in fig. 2.

Step 1, gNB/father node uses system message or special signaling to configure measurement configuration information to Tx UE, for Tx UE to report NR-U channel quality (i.e. measurement result) of SL interface. Specifically, the gNB/father node carries the measurement configuration information in SIBx. In the measurement configuration information, a first threshold (which may also be understood as threshold information) for SL-U CO evaluation is included, but not limited to, so that the Tx UE reports the measurement results of RSSI and CO. The measurement configuration information is as follows:

MeasRSSI-ReportConfig-r16::＝SEQUENCE{

channelOccupancyThreshold-r16 RSSI-Range-r16 OPTIONAL--Need R

}

Here, after the terminal performs measurement according to the measurement configuration information, the measurement result obtained by reporting the measurement may be periodically reported or event-triggered reporting (i.e. reporting when an event triggering reporting occurs). Specifically, the event-triggered reporting may include at least one of:

reporting RSSI and/or CO measurement results of a SL-U channel when LBT failure occurs on the SL-U channel of the UE or RLF occurs on the SL;

when the UE detects that the channel quality of the SL-U channel is lower than a second threshold value, reporting RSSI and/or CO measurement results of the SL-U channel;

when the UE detects that the channel quality of one SL-U is higher than a third threshold, reporting the RSSI and/or CO measurement result of the SL-U channel;

and when the UE detects that the fluctuation of one SL-U channel is larger than a fourth threshold value, reporting the RSSI and/or CO measurement result of the SL-U channel.

And 2, measuring SL-U channels.

Step 3: and feeding back the measurement result of the SL-U channel.

Specifically, the measurement reporting mechanism includes one or more of the following measurement contents:

the Tx UE performs measurements according to the configuration of the gNB/parent node or based on a predefined manner. When a measurement condition (reporting period or event triggering reporting) is met, measurement results related to the measurement ID (also called SL measurement ID) or related to one specific NR-U frequency/carrier/BWP are reported to the gNB/parent node. The measurement results may include RSSI and/or CO measurement results and may further include target L2 ID information of the corresponding SL.

The measurement results sent to the gNB/parent node may be carried using Sidelink UE Information NR messages or UE assisted messages.

Step 4, after the gNB/father node obtains the measurement result, the activation and deactivation judgment of the SL interface NR-U channel can be executed, namely, the following steps are executed: determining whether the direct communication uses an NR-U channel; and/or, determining relevant information of the used NR-U channel, such as corresponding carrier/BWP, etc. Thereafter, it may be indicated to the Tx UE whether the direct communication uses an NR-U channel, and when the direct communication uses the NR-U channel, SL-U related configuration (e.g., SL-U carrier/BWP, etc.) may be transmitted to the Tx UE to enable the Tx UE to perform SL communication based on the NR-U channel by the SL-U carrier/BWP, etc. related configuration information.

When the second scenario is that the Tx UE is in RRC connected state, the source base station switches the Tx UE to the target base station, and in the SL mode1, the source base station notifies the target base station of the measurement result of the SL-U channel of the Tx UE and the information about whether the SL-U is used, and the target base station considers whether to continue to use the SL-U channel after the Tx UE is connected to the target base station, as shown in fig. 3.

Step 1: the Tx UE is in RRC connected state and transmits measurement results of the SL-U channel to the source base station (gNB).

Step 2: the source gNB decides to switch the Tx UE to the target gNB, and sends a switching request message to the target gNB, wherein the switching request message carries SL-U related information and comprises the following steps: measurement results of the SL-U channel by the Tx UE and/or indication information of whether the SL interface uses the NR-U channel (which can also be understood as whether the SL-U channel is used). The measurement results include: measurement results of RSSI and/or CO of the frequency/carrier/BWP/sub-band of SL-U.

Step 3: after the target gNB acquires the handover request message of the Tx UE, determining whether to receive the handover request related to the Tx UE according to the SL-U related information (such as the measurement result, indication information of whether the SL interface uses an NR-U channel or not, and one or more of other information); and if yes, sending a corresponding switching request response message. The handover request response message may further include: the configuration of the SL-U related configuration of the Tx UE after connecting to the target base station is transmitted to the source gNB.

And 4, the source base station sends a switching command to the Tx UE along with the SL-U related configuration.

The source gNB or target gNB described herein may be a PCell or a PSCell in a DC scenario.

Of course, instead of the handover request message, a gNB addition request message may be used instead of the handover request message.

When the Tx UE is in RRC connected state, the source base station switches the Tx UE to the target base station, and in the SL mode1, the source auxiliary base station notifies the target auxiliary base station of the measurement result of the SL-U channel of the Tx UE and the information about whether the SL-U is used, and the target auxiliary base station considers whether to continue to use the SL-U channel after the Tx UE is connected to the target auxiliary base station, as shown in fig. 4.

Step 1: the Tx UE is in RRC connected state, and transmits the measurement result of the SL-U channel to the source auxiliary base station (S SN).

Step 2: the SN decides to switch the Tx UE to a target secondary base station (tsn), and the primary base station (MN) sends an SN addition request message to the tsn, where the SN addition request message carries SL-U related information, and includes: measurement results of the SL-U channel by the Tx UE and/or indication information of whether the SL interface uses the NR-U channel (which can also be understood as whether the SL-U channel is used). The measurement results include: measurement results of RSSI and/or CO of the frequency/carrier/BWP/sub-band of SL-U.

Step 3: after the tsn acquires the SN addition request message of the Tx UE, it determines whether to receive a handover request related to the Tx UE according to the SL-U related information (e.g., the measurement result, indication information of whether the SL interface uses the NR-U channel, and one or more of other information); if so, a corresponding SN addition request response message is sent to the MN. The SN addition request response message may further include: the SL-U related configuration of the Tx UE after being connected to the target secondary station is configured.

And step 4, the MN sends an RRC connection reconfiguration message carrying the SL-U related configuration to the Tx UE.

It should be noted that, the terminal according to the embodiment of the present disclosure is a terminal supporting SL communication.

The first device of the embodiments of the present disclosure may be, but is not limited to: the base station or parent node of the terminal.

As shown in fig. 5, a direct communication interface data transmission processing method according to an embodiment of the present disclosure is applied to a first device, and includes:

in step 501, a measurement result reported by a terminal is received, where the measurement result is a measurement result related to unlicensed spectrum of a through link.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the measurement result reported by the receiving terminal includes:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, after receiving the measurement result reported by the terminal, the method further includes:

at least one of the following:

the measurement result reported by the terminal;

whether the channel of the unlicensed spectrum of the through link is used;

transmitting a switching request message between base stations; or,

and sending a text response message of the retrieval terminal.

It should be noted that, the method is implemented in cooperation with the method executed by the terminal, and the implementation manner of the embodiment of the method is applicable to the method, so that the same technical effects can be achieved.

As shown in fig. 6, an embodiment of the present disclosure further provides a terminal, including: memory 620, transceiver 610, processor 600: a memory 620 for storing program instructions; a transceiver 610 for transceiving data under the control of the processor 600; a processor 600 for reading the program instructions in the memory 620 and performing the following operations:

Acquiring measurement configuration information;

the transceiver is also configured to perform the following operations:

and reporting the measurement result obtained by measurement.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the transceiver is further configured to:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the transceiver is further configured to:

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 600 and various circuits of memory represented by memory 620, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 610 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 610 in performing operations. The user interface 730 may also be an interface capable of interfacing with an inscribed desired device for a different terminal, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

The middle terminal in the embodiment of the disclosure can measure the SL-U channel according to the measurement configuration information after obtaining the measurement configuration information, so that a measurement result obtained by the measurement is reported to the first device, and therefore, the first device can know the SL-U channel condition according to the measurement result, and carry out adaptive SL transmission configuration for the terminal, thereby avoiding influencing the SL communication quality.

It should be noted that, the above terminal provided in the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment executed by the above terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

As shown in fig. 7, the implementation of the present disclosure further provides a direct communication interface data transmission processing device, including:

An acquisition module 710, configured to acquire measurement configuration information;

a measurement module 720, configured to measure a channel of the unlicensed spectrum of the through link according to the measurement configuration information;

and the reporting module 730 is configured to report a measurement result obtained by the measurement.

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the reporting module is further configured to:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the acquiring module is further configured to:

and receiving the measurement configuration information sent by the first equipment through a system message and/or RRC dedicated signaling.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It should be noted that, the above device provided in the embodiment of the present disclosure can implement all the method steps implemented in the embodiment of the method, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the embodiment of the method are omitted herein.

In some embodiments of the present disclosure, there is also provided a processor-readable storage medium storing program instructions for causing the processor to execute a direct communication interface data transmission processing method implemented by a terminal as described above.

The program instructions, when executed by the processor, can implement all the implementation manners described above in the embodiment of the method applied to the terminal side as shown in fig. 1, and are not repeated here.

As shown in fig. 8, the implementation of the present disclosure further provides a direct communication interface data transmission processing device, including: memory 820, transceiver 810, processor 800: a memory 820 for storing program instructions; a transceiver 810 for transceiving data under the control of the processor 800; processor 800 for reading the program instructions in the memory 820, and the transceiver 810 is configured to perform the following operations:

Optionally, the transceiver is further configured to:

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the transceiver is further configured to:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

Detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the processor is further configured to perform at least one of:

Optionally, the transceiver is further configured to:

the measurement result reported by the terminal;

Whether the channel of the unlicensed spectrum of the through link is used;

and sending a text response message of the retrieval terminal.

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 800 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc.

The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.

Alternatively, the processor 800 may be a CPU (central processing unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable gate array) or CPLD (Complex Programmable Logic Device ), and the processor 800 may also employ a multi-core architecture.

The processor 800 is operable to perform any of the methods provided by the embodiments of the present application in accordance with the obtained executable instructions by invoking program instructions stored in memory. Processor 800 and memory 820 may also be physically separate.

As shown in fig. 9, the implementation of the present disclosure further provides a direct communication interface data transmission processing device, including:

the receiving module 910 is configured to receive a measurement result reported by the terminal, where the measurement result is a measurement result related to an unlicensed spectrum of the through link.

Optionally, the apparatus further comprises:

Optionally, the measurement configuration information includes at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

Optionally, the receiving module is further configured to:

the channel fails Listen Before Talk (LBT);

radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

Optionally, the measurement result includes at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

Optionally, the apparatus further comprises:

a processing module for performing at least one of:

Optionally, the apparatus further comprises:

the measurement result reported by the terminal;

whether the channel of the unlicensed spectrum of the through link is used;

And sending a text response message of the search terminal.

It should be noted that, the above device provided in the embodiment of the present disclosure may implement all the method steps implemented in the first device side method embodiment, and may achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

In some embodiments of the present disclosure, there is also provided a processor-readable storage medium storing program instructions for causing the processor to execute a direct communication interface data transmission processing method implemented as the first device described above.

The program instructions, when executed by the processor, implement all the implementation manners described above in the method embodiment applied to the first device side as shown in fig. 5, and are not repeated herein.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE), LTE frequency division duplex (Frequency Division Duplex, FDD), LTE time division duplex (Time Division Duplex, TDD), long term evolution-advanced (Long Term Evolution Advanced, LTE-a), universal mobile system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide interoperability for Microwave Access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (Long Term Evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

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

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

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. The direct communication interface data transmission processing method is characterized by being applied to a terminal and comprising the following steps:

acquiring measurement configuration information;

and reporting the measurement result obtained by measurement.

2. The method of claim 1, wherein the measurement configuration information comprises at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

3. The method of claim 1, wherein reporting the measurement results of the measurements comprises:

reporting the measurement result based on a reporting period; or,

and reporting the measurement result based on the event triggering reporting.

4. A method according to claim 2 or 3, wherein the event triggering reporting comprises at least one of:

the channel fails Listen Before Talk (LBT);

Radio Link Failure (RLF) of a through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

5. The method of claim 1, wherein the measurement comprises at least one of:

the received signal strength;

channel occupation information;

target layer two identification information of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

6. The method of claim 1, wherein the measurement result is reported based on a measurement identity, or frequency information of an unlicensed spectrum.

7. The method of claim 1, wherein the obtaining measurement configuration information comprises:

8. The direct communication interface data transmission processing method is characterized by being applied to first equipment and comprising the following steps of:

9. The method of claim 8, further comprising, before the receiving the measurement result reported by the terminal:

10. The method of claim 9, wherein the measurement configuration information comprises at least one of:

a carrier wave of unlicensed spectrum of the through link;

frequency points of unlicensed spectrum of the direct link;

the bandwidth portion of the unlicensed spectrum of the pass-through link;

reporting the period;

triggering a reported event;

11. The method of claim 8, wherein the receiving the measurement result reported by the terminal includes:

12. The method according to claim 10 or 11, wherein the event triggering reporting comprises at least one of:

the channel fails to Listen Before Talk (LBT);

Radio link failure RLF of the through link occurs in the channel;

detecting that the channel quality of the channel is below a second threshold;

detecting that the channel quality of the channel is above a third threshold;

13. The method of claim 8, wherein the measurement comprises at least one of:

the received signal strength;

channel occupation information;

a second target layer identifier of the direct link;

unicast, multicast or broadcast type information used by the pass-through link.

14. The method of claim 8, wherein the measurement result is reported based on measurement identification or frequency information of an unlicensed spectrum.

15. The method of claim 8, further comprising, after the receiving the measurement result reported by the terminal: at least one of the following:

16. The method of claim 8, further comprising, after the receiving the measurement result reported by the terminal:

17. The method of claim 16, wherein the through-link unlicensed spectrum related information comprises at least one of:

the measurement result reported by the terminal;

whether the channel of the unlicensed spectrum of the through link is used;

18. The method according to claim 16, wherein the means for transmitting the through link unlicensed spectrum related information and/or the target layer two identification information of the through link of the terminal to the second device comprises:

transmitting a switching request message between base stations; or,

and sending a text response message of the retrieval terminal.

19. A terminal, comprising: a memory, transceiver, processor;

a memory for storing program instructions; a transceiver for transceiving data under control of the processor; a processor for reading the program instructions in the memory and performing the following operations:

acquiring measurement configuration information;

The transceiver is also configured to perform the following operations:

and reporting the measurement result obtained by measurement.

20. A direct communication interface data transmission processing apparatus, comprising:

21. A direct communication interface data transmission processing apparatus, comprising: a memory, transceiver, processor; a memory for storing program instructions; a transceiver for transceiving data under control of the processor; a processor for reading the program instructions in the memory, the transceiver for performing the following operations:

22. A direct communication interface data transmission processing apparatus, comprising:

23. A processor-readable storage medium storing a computer program for causing the processor to execute the direct communication interface data transmission processing method according to any one of claims 1 to 7 or the direct communication interface data transmission processing method according to any one of claims 8 to 18.