CN107852622B

CN107852622B - Gap selection method and device

Info

Publication number: CN107852622B
Application number: CN201580081949.1A
Authority: CN
Inventors: 张涛; 曹振臻; 蔺波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-14
Filing date: 2015-08-14
Publication date: 2020-04-14
Anticipated expiration: 2035-08-14
Also published as: WO2017028046A1; CN107852622A

Abstract

The invention discloses a Gap selection method and a device, relating to the field of communication, wherein the method is used in User Equipment (UE) and comprises the following steps: receiving configuration information sent by a base station, wherein the configuration information is used for indicating the time of occurrence of a measurement Gap; judging whether the measured Gap conflicts with the SL Gap or not according to the time of the measured Gap and the time of the SL Gap, wherein the time of the SL Gap is configured according to a preset strategy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap. The invention solves the problems of high difficulty and low configuration efficiency caused by the fact that the base station configures the measurement Gap and the SL Gap which are completely staggered for each UE, and achieves the effect of improving the efficiency of configuring the Gap.

Description

Gap selection method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a Gap selection method and apparatus.

Background

In a wireless communication system, while a User Equipment (UE) communicates with a base station controlling a serving Cell in the serving Cell (Cell), it needs to measure signals of neighboring cells adjacent to the serving Cell to perform Cell switching at a proper time, that is, to switch the neighboring cells to the serving Cell of the UE. Due to the limitation of the transceiver, the UE cannot both keep communicating with the base station and perform neighbor cell measurement at the same time, and at this time, the base station needs to configure measurement Gap for the UE, where the measurement Gap is a period (period) for the UE to perform measurement. The UE interrupts the communication with the base station in the measurement Gap and carries out the adjacent cell measurement; the UE maintains communication with the base station for a time other than measuring Gap. Specifically, the base station configures the UE with a measurement Gap pattern that specifies when measurement Gap occurs. For example, in one measurement Gap mode, one measurement Gap occurs every 40 ms.

Device to Device (D2D) refers to a mode in which UEs discover and communicate with each other via a Sidelink (SL), and in this mode, one UE directly transmits information to another UE without relaying through a base station. The D2D resource used by the UE on SL is part of the serving or neighbor cell resources. Due to the limitations of the transceiver, the UE cannot both transmit data packets over the SL and maintain communication with the base station at the same time, and the base station needs to configure the UE with a SL Gap, which is the period (period) during which the UE performs sidelink transmission or reception. UE interrupts communication with a base station in SL Gap and transmits data packets on SL; during times other than the SL Gap, the UE maintains communication with the base station.

According to the requirement, the base station may configure measurement Gap and SL Gap for the same UE, when the UE cannot perform neighbor measurement and transmit data packets at SL, the base station needs to configure SL Gap and measurement Gap which are completely staggered with each other for the UE, so that the SL Gap and the measurement Gap do not conflict with each other, and the UE can transmit the data packets at SL in the SL Gap without performing neighbor measurement; performing neighbor cell measurement in the measurement Gap without transmitting data packets on the SL; communication is maintained with the base station beyond the measurement Gap and beyond the SL Gap. The above configuration requirement makes the base station to configure the measurement Gap and the SL Gap for the UE very complicated, which affects the efficiency of Gap configuration.

Disclosure of Invention

In order to solve the problems that a base station configures measurement Gap and SL Gap which are completely staggered for each UE, so that the difficulty of configuring the Gap is high and the configuration efficiency is low, the embodiment of the invention provides a Gap selection method and a device. The technical scheme is as follows:

in a first aspect, a Gap selection method is provided, where the method is used in a user equipment UE, and the method includes:

receiving configuration information sent by a base station, wherein the configuration information is used for indicating the time of occurrence of measurement Gap;

judging whether the measurement Gap conflicts with the SL Gap or not according to the occurrence time of the measurement Gap and the occurrence time of a side link SL Gap, wherein the occurrence time of the SL Gap is configured according to a preset strategy;

selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap;

when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, the first and second electrodes may be,

when the SL Gap is selected, data packets are transmitted in the SL Gap.

In a first possible implementation manner of the first aspect, the determining, according to the time of occurrence of the measurement Gap and the time of occurrence of the SLGap, whether the measurement Gap and the SL Gap conflict with each other includes:

determining a time period corresponding to a next measurement Gap after the current time according to the time of the measurement Gap, determining a time period corresponding to a next SL Gap after the current time according to the time of the SL Gap, and judging whether the time period corresponding to the measurement Gap is overlapped with the time period of the SL Gap, wherein the minimum value of the time period corresponding to the measurement Gap is the time period of the measurement Gap, and the maximum value of the time period corresponding to the measurement Gap is the sum of the time period of the measurement Gap and the time period required by the UE to switch from the measurement Gap to the SL Gap; alternatively, the first and second electrodes may be,

determining a time period corresponding to a next SL Gap after the current time according to the time of the SL Gap, determining a time period corresponding to a next measurement Gap after the current time according to the time of the measurement Gap, and judging whether the time period corresponding to the SL Gap and the time period of the measurement Gap are overlapped, wherein the minimum value of the time period corresponding to the SL Gap is the time period of the SL Gap, and the maximum value of the time period corresponding to the SL Gap is the sum of the time period of the SL Gap and the time period required by the UE to switch from the SL Gap to the measurement Gap.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

acquiring the relative priority between the measurement Gap and the SL Gap, wherein the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE;

selecting the measurement Gap when the measurement Gap is of high priority compared to the SL Gap; alternatively, the first and second electrodes may be,

selecting the SL Gap when the measurement Gap is of low priority compared to the SL Gap.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

acquiring a signal parameter of a serving cell of the UE, wherein the signal parameter is signal strength or signal quality;

comparing the signal parameter with a signal threshold value, wherein the signal threshold value is issued by the base station, or the signal threshold value is determined by the UE;

selecting the measurement Gap when the signal parameter is less than the signal threshold value; alternatively, the first and second electrodes may be,

selecting the SL Gap when the signal parameter is greater than the signal threshold value.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

acquiring the priority of the data packet;

comparing the priority of the data packet with a data packet priority threshold value, wherein the data packet priority threshold value is issued by a base station, or the data packet priority threshold value is determined by the UE;

when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting the measurement Gap; alternatively, the first and second electrodes may be,

and when the priority of the data packet is higher than the data packet priority threshold value, selecting the SL Gap.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

determining whether the data packet belongs to a public safety PS service;

when the data packet does not belong to the PS service, selecting the measurement Gap; alternatively, the first and second electrodes may be,

and when the data packet belongs to the PS service, selecting the SL Gap.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

determining whether the frequency of the neighboring cell belongs to a reduction performance group, wherein the reduction performance group is a frequency group with the worst time delay performance in each frequency group, and the frequency group is obtained by grouping the frequencies required to be measured by the UE;

selecting the measurement Gap when the frequency does not belong to the mitigation performance group;

selecting the SL Gap when the frequency belongs to the abatement performance group.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the selecting one of the measurement Gap and the SL Gap includes:

determining whether the SL Gap is used for receiving or sending data packets, wherein the SL Gap is indicated by the base station, or whether the SL Gap is used for receiving or sending data packets, or the SL Gap is determined by the UE;

selecting the measurement Gap when the SL Gap is used to receive data packets; alternatively, the first and second electrodes may be,

the SL Gap is selected when the SL Gap is used to send data packets.

In a second aspect, a Gap selection method is provided, which is used in a base station, and includes:

determining a measurement Gap configured for User Equipment (UE);

generating configuration information indicating a time when the measurement Gap occurs;

sending the configuration information to the UE, wherein the configuration information is used for triggering the UE to judge whether the measurement Gap conflicts with the SL Gap according to the occurrence time of the measurement Gap and the occurrence time of a side link SL Gap, and the occurrence period of the SL Gap is configured according to a preset strategy; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

In a first possible implementation manner of the second aspect, the method further includes:

sending, to the UE, a relative priority between a measurement Gap and a SL Gap, the relative priority between the measurement Gap and the SL Gap being used to instruct the UE to select the measurement Gap or the SL Gap.

In a second possible implementation manner of the second aspect, the method further includes:

and sending a signal threshold value to the UE, wherein the signal threshold value is used for indicating the UE to select the measurement Gap or the SL Gap.

In a third possible implementation manner of the second aspect, the method further includes:

and sending a data packet priority threshold value to the UE, wherein the data packet priority threshold value is used for indicating the UE to select the measurement Gap or the SL Gap.

In a fourth possible implementation manner of the second aspect, the method further includes:

indicating to the UE whether the SL Gap is to receive or transmit data packets, the SL Gap being to receive or transmit data packets for indicating the UE to select the measurement Gap or the SL Gap.

In a third aspect, a Gap selection apparatus is provided, where the apparatus is used in a user equipment UE, and the apparatus includes:

a receiving unit, configured to receive configuration information sent by a base station, where the configuration information is used to indicate a time when a measurement Gap occurs;

the processing unit is used for judging whether the measurement Gap conflicts with the SL Gap or not according to the occurrence time of the measurement Gap and the occurrence time of a side link SL Gap, and the occurrence time of the SL Gap is configured according to a preset strategy; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SLgap.

In a first possible implementation manner of the third aspect, the processing unit is specifically configured to:

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect,

the receiving unit is further configured to acquire a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SLGap is determined by the UE;

the processing unit is specifically configured to select the measurement Gap when the measurement Gap is of a higher priority than the SL Gap; alternatively, the SL Gap is selected when the measurement Gap is of a lower priority than the SL Gap.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect,

the receiving unit is further configured to acquire a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality;

the processing unit is specifically configured to compare the signal parameter obtained by the receiving unit with a signal threshold, where the signal threshold is issued by the base station, or the signal threshold is determined by the UE; selecting the measurement Gap when the signal parameter is less than the signal threshold value; or, when the signal parameter is greater than the signal threshold value, selecting the SL Gap.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect,

the receiving unit is further configured to obtain a priority of the data packet;

the processing unit is specifically configured to compare the priority of the data packet obtained by the receiving unit with a data packet priority threshold, where the data packet priority threshold is issued by a base station, or the data packet priority threshold is determined by the UE; when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting the measurement Gap; or, when the priority of the data packet is higher than the threshold value of the priority of the data packet, selecting the SL Gap.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the processing unit is specifically configured to:

determining whether the data packet belongs to a public safety PS service;

and when the data packet belongs to the PS service, selecting the SL Gap.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the processing unit is specifically configured to:

selecting the measurement Gap when the frequency does not belong to the mitigation performance group; alternatively, the first and second electrodes may be,

With reference to the third aspect or the first possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the processing unit is specifically configured to:

the SL Gap is selected when the SL Gap is used to send data packets.

In a fourth aspect, a Gap selection apparatus is provided, for use in a base station, the apparatus including:

a processing module, configured to determine a measurement Gap configured for a user equipment UE; generating configuration information indicating a time when the measurement Gap occurs;

a sending unit, configured to send the configuration information generated by the processing unit to the UE, where the configuration information is used to trigger the UE to determine whether the measurement Gap and the SL Gap conflict or not according to the time when the measurement Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

In a first possible implementation manner of the fourth aspect, the sending unit is further configured to send, to the UE, a relative priority between a measurement Gap and a SL Gap, where the relative priority between the measurement Gap and the SL Gap is used to instruct the UE to select the measurement Gap or the SL Gap.

In a second possible implementation manner of the fourth aspect, the sending unit is further configured to send a signal threshold to the UE, where the signal threshold is used to instruct the UE to select the measurement Gap or the SL Gap.

In a third possible implementation manner of the fourth aspect, the sending unit is further configured to send a packet priority threshold to the UE, where the packet priority threshold is used to instruct the UE to select the measurement Gap or the SLGap.

In a fourth possible implementation manner of the fourth aspect, the sending unit is further configured to indicate, to the UE, whether the SL Gap is used to receive or send a data packet, and whether the SL Gap is used to receive or send a data packet is used to indicate that the UE selects the measurement Gap or the SL Gap.

In a fifth aspect, a Gap selection apparatus is provided, where the apparatus is used in a user equipment UE, and the apparatus includes: a bus, and a processor, memory, transmitter, and receiver connected to the bus. Wherein the memory is to store a number of instructions configured to be executed by the processor;

the receiver is configured to receive configuration information sent by a base station, where the configuration information is used to indicate a time when a measurement Gap occurs;

the processor is used for judging whether the measurement Gap conflicts with the SL Gap according to the occurrence time of the measurement Gap and the occurrence time of a side link SL Gap, and the occurrence time of the SL Gap is configured according to a preset strategy; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

In a first possible implementation manner of the fifth aspect, the processor is specifically configured to:

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the receiver is further configured to acquire a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SLGap is determined by the UE;

the processor is specifically configured to select the measurement Gap when the measurement Gap is of a high priority compared to the SL Gap; alternatively, the SL Gap is selected when the measurement Gap is of a lower priority than the SL Gap.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the receiver is further configured to acquire a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality;

the processor is specifically configured to compare the signal parameter with a signal threshold value, where the signal threshold value is issued by the base station, or the signal threshold value is determined by the UE; selecting the measurement Gap when the signal parameter is less than the signal threshold value; or, when the signal parameter is greater than the signal threshold value, selecting the SL Gap.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the receiver is further configured to obtain a priority of the data packet;

the processor is specifically configured to compare the priority of the data packet with a packet priority threshold, where the packet priority threshold is issued by a base station, or the packet priority threshold is determined by the UE; when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting the measurement Gap; or, when the priority of the data packet is higher than the threshold value of the priority of the data packet, selecting the SL Gap.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the processor is specifically configured to:

determining whether the data packet belongs to a public safety PS service;

and when the data packet belongs to the PS service, selecting the SL Gap.

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the processor is specifically configured to:

With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the processor is specifically configured to include:

the SL Gap is selected when the SL Gap is used to send data packets.

In a sixth aspect, a Gap selection apparatus is provided, for use in a base station, the apparatus comprising: a bus, and a processor, memory, transmitter, and receiver connected to the bus. Wherein the memory is to store a number of instructions configured to be executed by the processor;

the processor is configured to determine a measurement Gap configured for a User Equipment (UE); generating configuration information indicating a time when the measurement Gap occurs;

the transmitter is configured to send the configuration information generated by the processor to the UE, where the configuration information is used to trigger the UE to determine whether the measurement Gap and the SL Gap conflict or not according to the time when the measurement Gap occurs and the time when the side link SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

In a first possible implementation manner of the sixth aspect, the transmitter is further configured to send, to the UE, a relative priority between measurement Gap and SL Gap, where the relative priority between measurement Gap and SL Gap is used to instruct the UE to select the measurement Gap or the SL Gap.

In a second possible implementation manner of the sixth aspect, the transmitter is further configured to send a signal threshold to the UE, where the signal threshold is used to instruct the UE to select the measurement Gap or the SL Gap.

In a third possible implementation manner of the sixth aspect, the transmitter is further configured to send a packet priority threshold to the UE, where the packet priority threshold is used to instruct the UE to select the measurement Gap or the SLGap.

In a fourth possible implementation manner of the sixth aspect, the transmitter is further configured to indicate to the UE whether the SL Gap is used to receive or send a data packet, and whether the SL Gap is used to receive or send a data packet is used to indicate to the UE to select the measurement Gap or the SL Gap.

The technical scheme provided by the embodiment of the invention has the beneficial effects that:

by selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SL Gap which are completely staggered with each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap which are completely staggered with each other, and achieving the effect of improving the efficiency of configuring the Gap.

Drawings

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

Fig. 1 is a flowchart of a method for Gap selection according to an embodiment of the present invention;

fig. 2 is a flowchart of a method of Gap selection according to an embodiment of the present invention;

fig. 3A is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 3B is a schematic diagram of measurement Gap and SL Gap provided by an embodiment of the present invention;

fig. 4 is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 5 is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 6 is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 7 is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 8 is a flowchart of a method of Gap selection according to another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, a flowchart of a method for Gap selection according to an embodiment of the present invention is shown. The Gap selection method may include:

in step 101, the UE receives configuration information sent by the base station, where the configuration information is used to indicate a time when the measurement Gap occurs.

And 102, the UE judges whether the measurement Gap conflicts with the SL Gap according to the occurrence time of the measurement Gap and the occurrence time of the SL Gap, wherein the occurrence time of the SL Gap is configured according to a preset strategy.

In step 103, when the measurement Gap collides with the SL Gap, the UE selects one of the measurement Gap and the SL Gap.

And step 104, when the measurement Gap is selected, the UE performs neighbor cell measurement in the measurement Gap.

And step 105, when the selected signal is the SL Gap, the UE transmits a data packet in the SL Gap.

In summary, in the Gap selection method provided in the embodiment of the present invention, when the measured Gap collides with the SL Gap, one of the measured Gap and the SL Gap is selected; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SLGap which are completely staggered with each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap which are completely staggered with each other, and achieving the effect of improving the efficiency of configuring the Gap.

Referring to fig. 2, a flowchart of a method for Gap selection according to an embodiment of the present invention is shown. The Gap selection method may include:

in step 201, the base station determines a measurement Gap configured for the UE.

In step 202, the base station generates configuration information indicating the time when the measurement Gap occurs.

Step 203, the base station sends configuration information to the UE, where the configuration information is used to trigger the UE to determine whether the measurement Gap conflicts with the SL Gap according to the occurrence time of the measurement Gap and the occurrence time of the SL Gap, and the occurrence time of the SL Gap is configured according to a predetermined policy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap.

In summary, in the Gap selection method provided in the embodiment of the present invention, the measurement Gap configured for the UE is determined; generating configuration information indicating a time when the measurement Gap occurs; sending configuration information to the UE, wherein the configuration information is used for triggering the UE to select one of the measurement Gap and the SL Gap when the measurement Gap conflicts with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SL Gap which are completely staggered with each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap which are completely staggered with each other, and achieving the effect of improving the efficiency of configuring the Gap.

Please refer to fig. 3A, which shows a flowchart of a method of another Gap selection method according to an embodiment of the present invention, in which a UE selects a measurement Gap or an SL Gap according to a relative priority between the measurement Gap and the SL Gap. The Gap selection method may include:

in step 301, the base station determines a measurement Gap configured for the UE.

When the method is applied to a Long Term Evolution (LTE) system, the base station is specifically an enb (enodeb); when the method is applied to a Universal Mobile Telecommunications System (UMTS), the base station is specifically nb (nodeb), and when the method is applied to Wireless Fidelity (WiFi), the base station is specifically an Access Point (AP).

Generally, one UE includes one transceiver, and one transceiver can only transmit and receive signals on one frequency point at the same time, so that when a neighboring cell of a serving cell of the UE is different in frequency from the serving cell, a base station needs to configure a measurement Gap for the UE, so that the UE interrupts communication with the base station in the measurement Gap to perform neighboring cell measurement; and in the time except for measuring the Gap, the UE keeps communication with the base station and does not perform neighbor cell measurement.

In this embodiment, the base station configures, for the UE, the time for measuring Gap occurrence according to many factors, where the time for measuring Gap occurrence is determined by the start time, the period for measuring Gap occurrence, and the duration for measuring Gap duration. The starting time may be directly issued by the base station, or may be calculated by the UE according to the offset after the offset is issued by the base station, which is not limited in this embodiment.

In this embodiment, a base station configures an occurrence period of measurement Gap for a UE according to the number of pilot frequencies that need to be measured. Specifically, when the number of pilot frequencies is large, the occurrence period of measurement Gap is configured to be small; when the number of pilot frequencies is small, the occurrence period of measurement Gap is configured to be large.

When the duration of each measurement Gap is configured, in a possible implementation manner, the base station configures the duration of each measurement Gap when configuring the measurement Gap; in another possible implementation, the duration for which each measurement Gap lasts is decided by the UE.

When the duration of each measurement Gap is determined by the UE, the UE may read the duration of each measurement Gap specified in the communication protocol; alternatively, the UE may decide itself for the duration for which each measurement Gap lasts. When the UE determines the duration of each measured Gap, the UE may notify the base station of the duration of each measured Gap, or may not notify the base station, which is not limited in this embodiment.

In step 302, the base station generates configuration information indicating the time when the measurement Gap occurs.

Step 303, the base station sends the configuration information to the UE.

In step 304, the UE receives the configuration information sent by the base station.

In step 305, the UE determines whether the measured Gap collides with the SL Gap according to the time when the measured Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy.

The time of the occurrence of the SL Gap is determined by the start time, the period of the occurrence of the SL Gap, and the duration of the SL Gap.

In this embodiment, the configuration of the time when the SL Gap appears may be issued by the base station or determined by the UE, and the following two implementation manners are introduced:

when the configuration of the occurrence period of the SL Gap is issued by the base station, the base station configures the occurrence period of the SL Gap for the UE according to a plurality of factors, for example, the base station configures the occurrence period of the SL Gap for the UE according to available resources, thereby ensuring that the available resources exist for the UE to transmit data packets in the SL Gap. Wherein, the UE transmitting the data packet in the SL Gap may specifically include: the UE receives a data packet on the SL through the SL Gap, or the UE transmits a data packet on the SL through the SL Gap.

It should be noted that, when configuring the occurrence period of the SL Gap, in a possible manner, the base station configures the occurrence period for each SLGap, for example, the occurrence period of each SL Gap is 40ms, and at this time, one SL Gap appears every 40 ms; in another possible implementation manner, the base station uses a predetermined number of SL gaps as one packet, and configures an occurrence period of the SL Gap packets, for example, 3 SL gaps are used as one packet, and the occurrence period of each SL Gap packet is 40ms, where one SL Gap packet occurs every 40 ms.

When the duration of the SL Gap is configured, in one possible implementation, the duration of the SL Gap is configured by the base station when configuring the appearance period of the SL Gap; in another possible implementation, the duration for which the SL Gap lasts is determined by the UE. When the UE determines the duration of the SL Gap, the UE may read the duration of the SL Gap specified in the communication protocol; alternatively, the UE may decide itself for the duration of the SL Gap. When the UE determines the duration of the SL Gap, the UE may notify the base station of the duration of the SL Gap, or may not notify the base station, which is not limited in this embodiment.

It should be noted that, when configuring the duration of the SL Gap, in a possible manner, the base station configures a duration for each SL Gap, for example, the duration of each SL Gap is 10 ms; in another possible implementation manner, the base station uses a predetermined number of SL gaps as one packet, and configures a duration of the SL Gap packet, for example, 3 SL gaps as one packet, and a duration of each SL Gap packet is 100ms, at this time, 3 SL gaps with a duration of 10ms are configured within the duration of 100 ms. For example, the configuration is such that the SL Gap appears at 10ms, 30ms, and 50ms, or the configuration is such that the SL Gap appears at 20ms, 60ms, and 80ms, and the present embodiment is not limited.

The base station may also add information indicating the time when the SL Gap occurs to the configuration information in step 302, so as to save signaling wasted by the base station sending the two information through additional configuration information.

When the configuration of the appearance period of the SL Gap is decided by the UE, the UE may read the appearance period of the SL Gap specified in the communication protocol; alternatively, the UE may decide the occurrence period of the SL Gap itself. When the UE determines the occurrence period of the SL Gap, the UE may notify the base station of the occurrence period of the SL Gap, or may not notify the base station, which is not limited in this embodiment. The process of the UE determining the appearance period of the SL Gap is the same as the process of the base station configuring the appearance period of the SL Gap, and details are not repeated here.

The UE also needs to determine the duration of the SL Gap, and in a possible implementation, the base station configures the duration of the SL Gap; in another possible implementation, the duration of the SLGap is determined by the UE when determining the occurrence period of the SL Gap. When the duration of the SL Gap is determined by the UE, the UE may read the duration of the SL Gap specified in the communication protocol; alternatively, the UE may decide itself for the duration of the SL Gap. When the UE determines the duration of the SL Gap, the UE may notify the base station of the duration of the SL Gap, or may not notify the base station, which is not limited in this embodiment.

No matter whether the configuration of the SL Gap is configured by the base station or determined by the UE, whether the measurement Gap and the SLgap conflict or not does not need to be considered, so that the requirement for configuring the measurement Gap and the SL Gap is reduced, and the efficiency for configuring the Gap is improved. The measurement Gap and the SL Gap conflict with each other, namely, the time when the measurement Gap occurs and the time when the SL Gap occurs conflict with each other. Please refer to fig. 3B, which illustrates a schematic diagram of measurement gaps and SL gaps, wherein a third SL Gap collides with a second measurement Gap, and a fourth SL Gap collides with a third measurement Gap.

After determining the measurement Gap and the SL Gap, the UE performs timing, performs neighbor cell measurement during the time of occurrence of the measurement Gap, and transmits a packet on the SL during the time of occurrence of the SL Gap. Since the measurement Gap and the SL Gap may collide with each other, and the UE can only select one of the measurement Gap and the SL Gap at the same time, it is further required to determine whether the measurement Gap and the SL Gap collide with each other before the UE performs neighbor cell measurement in the measurement Gap or transmits a packet on the SL through the SL Gap.

Specifically, determining whether the measurement Gap and the SL Gap conflict with each other according to the time when the measurement Gap occurs and the time when the SL Gap occurs includes:

1) determining a time period corresponding to the next measurement Gap after the current moment according to the time of the measurement Gap, determining a time period of the next SL Gap after the current moment according to the time of the SL Gap, judging whether the time period corresponding to the measurement Gap is overlapped with the time period of the SL Gap, wherein the minimum value of the time period corresponding to the measurement Gap is the time period of the measurement Gap, and the maximum value of the time period corresponding to the measurement Gap is the sum of the time period of the measurement Gap and the time period required for switching the UE from the measurement Gap to the SL Gap; alternatively, the first and second electrodes may be,

2) and determining a time period corresponding to the next SL Gap after the current time according to the time of the SL Gap, determining a time period of the next measurement Gap after the current time according to the time of the measurement Gap, and judging whether the time period corresponding to the SL Gap is overlapped with the time period of the measurement Gap, wherein the minimum value of the time period corresponding to the SL Gap is the time period of the SL Gap, and the maximum value of the time period corresponding to the SL Gap is the sum of the time period of the SL Gap and the time period required for the UE to switch from the SL Gap to the measurement Gap.

When a measurement Gap appears after the current time, positioning the first time backwards based on the starting time of the measurement Gap to obtain a first time, detecting whether a SL Gap appears in a time period determined by the starting time and the first time, and determining that the measurement Gap and the SL Gap conflict when a SL Gap appears in the time period; and when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value is the duration obtained by adding the duration of the measurement Gap to a first preset time length, and the first preset time length is the time length required by the UE to switch from the measurement Gap to the SL Gap. In practical implementation, the first predetermined time period may be set to 0.5ms, or may be set to other values, and the embodiment is not limited. Alternatively, the first and second electrodes may be,

when an SL Gap appears after the current time, positioning backward for a second time length based on the starting time of the SL Gap to obtain a second time, detecting whether a measurement Gap appears in a time period determined by the starting time and the second time, and determining that the SL Gap and the measurement Gap conflict when a measurement Gap appears in the time period; and when one measurement Gap does not appear in the time period, determining that the SL Gap and the measurement Gap do not conflict, wherein the minimum value of the second time length is the duration of the SL Gap, the maximum value is the duration obtained by adding the duration of the SL Gap to a second preset time length, and the second preset time length is the time length required by the UE to switch from the SL Gap to the measurement Gap. In practical implementation, the second predetermined time period may be set to 0.5ms, or may be set to other values, and the second predetermined time period is the same as or different from the first predetermined time period, which is not limited in this embodiment.

Step 306, when the measurement Gap collides with the SL Gap, the UE obtains the relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE.

In one possible implementation, the relative priority between the measurement Gap and the SL Gap is issued by the base station; in another possible implementation, the relative priority between the measurement Gap and the SL Gap is decided by the UE. Wherein, when the UE decides the relative priority between the measurement Gap and the SL Gap, the UE may read the relative priority between the measurement Gap and the SL Gap specified in the communication protocol; alternatively, the UE may decide itself to measure the relative priority between Gap and SL Gap. When the UE determines to measure the relative priority between the Gap and the SL Gap, the UE may notify the base station of the relative priority between the Gap and the SL Gap, or may not notify the base station, which is not limited in this embodiment.

When the base station issues the relative priority between the measurement Gap and the SL Gap, the method provided in this embodiment further includes: and the base station sends relative priority between the measurement Gap and the SL Gap to the UE, and the relative priority between the measurement Gap and the SL Gap is used for indicating the UE to select the measurement Gap or the SL Gap.

Specifically, the base station and the UE agree whether the Gap with high priority or the Gap with low priority is issued by the base station, and thereafter, the base station only needs to issue the measurement Gap or the SL Gap to the UE, and the UE can definitely measure the relative priority between the Gap and the SL Gap. For example, the base station and the UE agree that the Gap with high priority is issued by the base station, and when the base station issues the measurement Gap, the UE determines that the measurement Gap has high priority relative to the SL Gap; when the base station issues the SL Gap, the UE determines that the SL Gap has high priority relative to the measurement Gap. Alternatively, the base station configures the measurement Gap and the SL Gap with priority values, respectively, and the UE compares the two values to determine the relative priority between the measurement Gap and the SL Gap. In this embodiment, the smaller the value is, the higher the priority is, for example, and assuming that the value of the priority configured for the measurement Gap by the base station is 2 and the value of the priority configured for the SL Gap is 3, the UE may determine that the measurement Gap is of high priority relative to the SL Gap. Of course, the base station may also issue the relative priority between the measurement Gap and the SLGap in other manners, which is not limited in this embodiment.

Optionally, the base station may add the relative priority between the measurement Gap and the SL Gap to the configuration information in step 302 and send the configuration information to the UE, so as to save signaling wasted by sending the relative priority between the measurement Gap and the SL Gap through additional configuration information by the base station.

In step 307, when the measurement Gap has a higher priority than the SL Gap, the UE selects the measurement Gap and performs step 308.

When the measurement Gap is higher priority than the SL Gap, indicating that the importance of performing neighbor measurement is higher than the importance of transmitting data packets on the SL, the UE selects the measurement Gap.

And step 308, the UE performs neighbor cell measurement in the measurement Gap, and the process is ended.

In step 309, the UE selects the SL Gap when the measurement Gap is of low priority compared to the SL Gap.

When the measurement Gap is of low priority compared to the SL Gap, indicating that the importance of performing neighbor measurements is lower than the importance of transmitting packets over the SL, the UE selects the SL Gap.

In step 310, the UE transmits a data packet in the SL Gap.

In addition, by selecting the measurement Gap or the SL Gap according to the relative priority between the measurement Gap and the SL Gap, the measurement Gap may be selected when the measurement Gap is high priority with respect to the SL Gap; when the measured Gap is low priority relative to the SL Gap, the SL Gap is selected, so that the Gap selected by the UE meets the actual requirement, and the accuracy of Gap selection is improved.

Please refer to fig. 4, which shows a flowchart of a method for Gap selection according to another embodiment of the present invention, in which a UE selects a measurement Gap or an SL Gap according to a signal parameter of a serving cell of the UE. The Gap selection method may include:

in step 401, the base station determines a measurement Gap configured for the UE.

In step 402, the base station generates configuration information indicating the time when the measurement Gap occurs.

In step 403, the base station sends the configuration information to the UE.

In step 404, the UE receives configuration information sent by the base station.

In step 405, the UE determines whether the measured Gap conflicts with the SL Gap according to the time when the measured Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy.

The implementation process of steps 401-405 is described in step 301-305, and is not described herein again.

In step 406, when the measured Gap collides with the SL Gap, the UE acquires a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality.

In this embodiment, whether the signal parameter is the signal strength or the signal quality may be predetermined by the base station and the UE. Wherein the signal strength and signal quality are used to indicate the quality of the signal of the serving cell. The technology for acquiring the signal strength or the signal quality by the UE is already well-established, and the details of this embodiment are not described herein.

Step 407, the UE compares the signal parameter with a signal threshold, where the signal threshold is issued by the base station, or the signal threshold is determined by the UE.

Wherein the signal threshold value is related to a signal parameter acquired by the UE. For example, when the signal parameter acquired by the UE is the signal strength, the signal threshold is a signal strength threshold; when the signal parameter acquired by the UE is the signal quality, the signal threshold is a signal quality threshold.

In one possible implementation, the base station issues a signal threshold value; in another possible implementation, the signal threshold value is determined by the UE. When the UE determines the signal threshold, the UE may read the signal threshold specified in the communication protocol; alternatively, the UE may decide the signal threshold value itself. When the UE determines the signal threshold, the UE may notify the base station of the signal threshold, or may not notify the base station, which is not limited in this embodiment.

When the base station issues the signal threshold, the method provided in this embodiment further includes: and the base station sends a signal threshold value to the UE, wherein the signal threshold value is used for indicating the UE to select measurement Gap or SL Gap.

Optionally, the base station may add the signal threshold to the configuration information in step 402 and send the signal threshold to the UE, so as to save signaling wasted in sending the signal threshold by the base station through additional configuration information.

It should be added that the UE may also obtain the signal strength and the signal quality of the serving cell at the same time, where the signal threshold includes a signal strength threshold and a signal quality threshold, and the UE needs to compare the signal strength with the signal strength threshold and compare the signal quality with the signal quality threshold. In one possible implementation, when the signal strength is greater than the signal strength threshold or the signal quality is greater than the signal quality threshold, determining that the signal parameter is greater than the signal threshold; and when the signal strength is smaller than the signal strength threshold value and the signal quality is smaller than the signal quality threshold value, determining that the signal parameter is smaller than the signal threshold value. In another possible implementation, when the signal strength is greater than the signal strength threshold and the signal quality is greater than the signal quality threshold, determining that the signal parameter is greater than the signal threshold; and when the signal strength is smaller than the signal strength threshold value or the signal quality is smaller than the signal quality threshold value, determining that the signal parameter is smaller than the signal threshold value.

In step 408, when the signal parameter is smaller than the signal threshold value, the UE selects to measure Gap, and performs step 409.

When the signal parameter is smaller than the signal threshold value, the signal of the current service cell is poor, and the UE preferentially carries out neighbor cell measurement, so that when the signal of the neighbor cell is good, the neighbor cell is timely switched to the service cell of the UE, and normal communication of the UE is ensured.

Step 409, the UE performs neighbor cell measurement in the measurement Gap, and ends the procedure.

In step 410, when the signal parameter is greater than the signal threshold value, the UE selects the SL Gap.

When the signal parameter is greater than the signal threshold value, it indicates that the serving cell signal is better at this time, and the UE does not need to perform neighbor cell measurement preferentially.

In step 411, the UE transmits a data packet in the SL Gap.

In addition, by selecting the measurement Gap or the SL Gap according to the signal parameter of the serving cell of the UE, the measurement Gap can be selected to preferentially perform neighbor cell measurement when the signal of the serving cell is poor, and the neighbor cell can be timely switched to the serving cell of the UE when the signal of the neighbor cell is good, so that the normal communication of the UE can be ensured.

Please refer to fig. 5, which shows a flowchart of a method for selecting a Gap according to another embodiment of the present invention, where in this embodiment, the UE selects measurement Gap or SL Gap according to the priority of the data packet. The Gap selection method may include:

in step 501, the base station determines a measurement Gap configured for the UE.

In step 502, the base station generates configuration information indicating the time when the measurement Gap occurs.

Step 503, the base station sends the configuration information to the UE.

In step 504, the UE receives configuration information sent by the base station.

In step 505, the UE determines whether the measurement Gap collides with the SL Gap according to the time of the measurement Gap and the time of the SL Gap, where the time of the SL Gap is configured according to a predetermined policy.

The implementation process of steps 501-505 is described in step 301-305, and is not described herein again.

In step 506, when the measurement Gap collides with the SL Gap, the UE acquires the priority of the data packet.

The packet refers to a packet to be transmitted over the SL through the SL Gap. The priority of the data packet may be represented by a value, for example, the value of the priority of the data packet is 1, or the value of the priority of the data packet is 4, and the like, and the embodiment is not limited. The technology for acquiring the priority of the data packet by the UE is already mature, and is not described in detail in this embodiment.

In step 507, the UE compares the priority of the data packet with a threshold of the priority of the data packet, where the threshold of the priority of the data packet is issued by the base station, or the threshold of the priority of the data packet is determined by the UE.

In one possible implementation, the base station issues a packet priority threshold; in another possible implementation, the packet priority threshold is determined by the UE. When the UE determines the threshold value of the priority of the data packet, the UE can read the threshold value of the priority of the data packet specified in the communication protocol; alternatively, the UE may decide the packet priority threshold itself. When the UE determines the packet priority threshold, the UE may notify the base station of the packet priority threshold, or may not notify the base station, which is not limited in this embodiment.

When the base station issues the priority threshold of the data packet, the method provided in this embodiment further includes: and the base station sends a data packet priority threshold value to the UE, wherein the data packet priority threshold value is used for indicating the UE to select measurement Gap or SL Gap.

Optionally, the base station may add the packet priority threshold to the configuration information in step 502 and send the packet priority threshold to the UE, so as to save signaling wasted in sending the packet priority threshold by the base station through the additional configuration information.

If the smaller the numerical value is, the higher the priority is, the numerical value of the priority of the data packet is 2, and the threshold value of the priority of the data packet is 3, the priority of the data packet is higher than the threshold value of the priority of the data packet; assuming that the packet priority threshold is 1, the priority of the packet is lower than the packet priority threshold.

In step 508, when the priority of the packet is lower than the threshold, the UE selects to measure Gap, and then performs step 509.

When the priority of the data packet is lower than the threshold value of the priority of the data packet, it indicates that the data packet needing to be transmitted on the SL is not very urgent, and the UE preferentially selects to measure the Gap.

Step 509, the UE performs neighbor measurement in the measurement Gap, and ends the procedure.

In step 510, when the priority of the packet is higher than the packet priority threshold, the UE selects the SL Gap.

When the priority of the data packet is higher than the priority threshold value of the data packet, the data packet needing to be transmitted on the SL is very urgent, and the UE preferentially selects the SL Gap.

In step 511, the UE transmits the data packet in the SL Gap.

In addition, by selecting the measurement Gap or the SL Gap according to the priority of the packet, it may be determined that the packet to be transmitted over the SL through the SL Gap is urgent when the priority of the packet is higher than the packet priority threshold, and the SL Gap is preferentially selected at this time, so as to ensure normal operation of the service.

Referring to fig. 6, a flowchart of a method for selecting a Gap according to another embodiment of the present invention is shown, where in this embodiment, a UE selects a measurement Gap or an SL Gap according to whether a data packet belongs to Public Safety (PS) service. The Gap selection method may include:

step 601, the base station determines a measurement Gap configured for the UE.

In step 602, the base station generates configuration information, which is used to indicate the time when the measurement Gap occurs.

Step 603, the base station sends the configuration information to the UE.

In step 604, the UE receives configuration information sent by the base station.

Step 605, the UE determines whether the measurement Gap collides with the SL Gap according to the time of the measurement Gap and the time of the SL Gap, where the time of the SL Gap is configured according to a predetermined policy.

The implementation process of step 601-605 is described in step 301-305, and is not described herein again.

In step 606, when the measurement Gap collides with the SL Gap, the UE determines whether the data packet belongs to the PS service.

The PS service refers to a service related to public safety. For example, PS services include military communication services; non-PS services include residential or commercial communication services.

When determining whether the data packet belongs to the PS service, in one possible implementation, the UE determines whether the data packet belongs to the PS service according to its own attribute, for example, when the UE is a military interphone, all data packets transmitted by the UE belong to the PS service. In another possible implementation manner, the UE determines whether the data packet belongs to the PS service according to the attribute of the data packet, for example, the UE reads a destination Internet address (IP) and a destination port of the data packet, detects whether the destination IP address and the destination port are a destination IP and a destination port used in the PS service, and determines that the data packet belongs to the PS service when the destination IP address and the destination port are the destination IP and the destination port used in the PS service; when the destination IP address and the destination port are not the destination IP and the destination port used in the PS service, determining that the data packet does not belong to the PS service. Of course, the UE may also determine whether the data packet belongs to the PS service in other manners, which is not limited in this embodiment.

In step 607, when the data packet does not belong to the PS service, the UE selects to measure Gap, and performs step 608.

When the data packet does not belong to the PS service, indicating that the data packet to be transmitted on the SL is not very urgent, the UE preferentially selects the measurement Gap.

Step 608, the UE performs neighbor cell measurement in the measurement Gap, and ends the procedure.

In step 609, when the packet belongs to the PS service, the UE selects the SL Gap.

When the data packet belongs to the PS service, indicating that the data packet to be transmitted over the SL is urgent, the UE preferentially selects the SLGap.

In step 610, the UE transmits a data packet in the SL Gap.

In summary, in the Gap selection method provided in the embodiment of the present invention, when the measured Gap collides with the SL Gap, one of the measured Gap and the SL Gap is selected; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SL Gap completely staggered from each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap completely staggered from each other, and achieving the effect of improving the efficiency of configuring the Gap.

In addition, by selecting the measurement Gap or the SL Gap according to whether the packet to be transmitted in the SL Gap belongs to the PS service, it can be determined that the packet to be transmitted over the SL by the SL Gap is urgent when the packet belongs to the PS service, and the SL Gap is preferentially selected at this time to ensure normal operation of the service.

Please refer to fig. 7, which shows a flowchart of a method for Gap selection according to another embodiment of the present invention, in which a UE selects a measurement Gap or an SL Gap according to whether a frequency of a neighboring cell belongs to a reduced performance group (reduced performance group). The Gap selection method may include:

in step 701, the base station determines a measurement Gap configured for the UE.

In step 702, the base station generates configuration information indicating the time when the measurement Gap occurs.

Step 703, the base station sends the configuration information to the UE.

In step 704, the UE receives configuration information sent by the base station.

Step 705, the UE determines whether the measured Gap collides with the SL Gap according to the time of the measured Gap and the time of the SL Gap, where the time of the SL Gap is configured according to a predetermined policy.

Wherein, the implementation process of step 701-705 is described in step 301-305, and is not described herein again.

Step 706, when the measured Gap collides with the SL Gap, the UE determines whether the frequency of the neighboring cell belongs to a subtractive performance group, where the subtractive performance group is a frequency group with the worst delay performance among the frequency groups, and the frequency group is obtained by grouping the frequencies to be measured by the UE.

The measurements made for frequencies in the cancellation performance group are generally not measurements for mobility services. For example, measuring frequencies in the cancellation performance group is used to find cells to offload or to find accessible APs, etc. Because the measurement of the frequency in the mitigation performance group is not used to search for a switchable neighbor cell, the measurement of the frequency in the mitigation performance group is generally not very urgent, and the UE may select to measure the Gap or the SLGap according to whether the frequency of the neighbor cell belongs to the mitigation performance group.

Generally, the base station issues measurement configuration information to the UE, where the measurement configuration information includes at least one measurement frequency, and each measurement frequency belongs to one of two frequency groups, one of the two frequency groups is an subtractive performance group, and the other is a normal performance group. In a specific implementation, the UE may determine the frequency of the neighboring cell to be measured in the measurement Gap, determine the frequency group to which the frequency belongs, and determine whether the frequency of the neighboring cell belongs to the reduction performance group according to the frequency group to which the frequency belongs.

In step 707, when the frequency does not belong to the subtractive performance group, the UE selects measurement Gap and performs step 708.

When the frequency of the adjacent cell does not belong to the reduction performance group, the UE is indicated that the UE may search for the switchable adjacent cell through adjacent cell measurement, the signal quality of the service cell may be poor at this time, and the UE preferentially selects the measurement Gap to perform adjacent cell measurement, so that when the signal of the adjacent cell is good, the adjacent cell is timely switched to the service cell of the UE, and normal communication of the UE is ensured.

Step 708, the UE performs neighbor measurement in the measurement Gap, and ends the procedure.

Step 709, when the frequency of the neighboring cell belongs to the subtractive performance group, the UE selects the SL Gap.

And when the frequency of the adjacent cell belongs to the reduction performance group, the measurement of the adjacent cell is not urgent, and the UE selects the SL Gap.

In step 710, the UE transmits a data packet in the SL Gap.

In addition, the measurement Gap or the SL Gap is selected according to whether the frequency of the adjacent cell belongs to the reduction performance group, so that when the frequency of the adjacent cell does not belong to the reduction performance group, the UE can be determined to possibly search for the switchable adjacent cell through the adjacent cell measurement, the signal quality of the serving cell is possibly poor, the UE preferentially selects the measurement Gap to perform the adjacent cell measurement, and therefore when the signal of the adjacent cell is good, the adjacent cell is timely switched to be the serving cell of the UE, and normal communication of the UE is guaranteed.

Please refer to fig. 8, which shows a flowchart of a method for Gap selection according to another embodiment of the present invention, in which a UE selects a measurement Gap or a SL Gap according to whether the SL Gap is used to receive a data packet or to send a data packet. The Gap selection method may include:

in step 801, a base station determines a measurement Gap configured for a UE.

In step 802, the base station generates configuration information indicating the time when the measurement Gap occurs.

Step 803, the base station sends the configuration information to the UE.

Step 804, the UE receives configuration information sent by the base station.

In step 805, the UE determines whether the measurement Gap collides with the SL Gap according to the time when the measurement Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy.

The implementation process of steps 801-805 is described in step 301-305, and is not described herein again.

In step 806, when the measurement Gap collides with the SL Gap, the UE determines whether the SL Gap is used to receive or transmit a data packet, whether the SL Gap is used to receive or transmit a data packet is indicated by the base station, or whether the SL Gap is used to receive or transmit a data packet is determined by the UE.

In one possible implementation, whether the SL Gap is used to receive or transmit data packets is indicated by the base station; in another possible implementation, the decision of whether the SL Gap is used to receive or send data packets is made by the UE. When the UE determines whether the SL Gap is used to receive or transmit a data packet, the UE may read whether the SL Gap specified in the communication protocol is used to receive or transmit a data packet; alternatively, the UE may itself decide whether the SL Gap is used to receive or transmit data packets. When the UE determines whether the SL Gap is used to receive or transmit the data packet, the UE may notify the base station of whether the SL Gap is used to receive or transmit the data packet, or may not notify the base station, which is not limited in this embodiment.

When the base station indicates whether the SL Gap is used to receive a data packet or send a data packet, the method provided in this embodiment further includes: the base station indicates to the UE whether the SL Gap is used to receive or transmit data packets, and whether the SL Gap is used to receive or transmit data packets indicates to the UE to select either the measurement Gap or the SL Gap.

Optionally, the base station may indicate, through the configuration information in step 802, whether the SL Gap is used to receive the data packet or to send the data packet, so as to save signaling wasted by the base station indicating, through the additional configuration information, whether the SL Gap is used to receive the data packet or to send the data packet.

In this embodiment, the UE may select the measurement Gap when the SL Gap is used to receive the data packet, and select the SL Gap when the SL Gap is used to send the data packet; the UE may also select the measurement Gap when the SL Gap is used to send data packets and select the SL Gap when the SL Gap is used to receive data packets. In a possible implementation, the base station issues the selection rule; in another possible implementation, the selection rule is decided by the UE. Wherein, when the selection rule is decided by the UE, the UE can read the selection rule specified in the communication protocol; alternatively, the UE may decide the selection rule itself. When the UE determines the selection rule, the UE may notify the base station of the selection rule, or may not notify the base station, which is not limited in this embodiment.

When multiple UEs communicate with each other on the SL at the same time, because only one UE can transmit a data packet and other UEs receive the data packet at the same time, the duration of each UE transmitting the data packet is much shorter than the duration of receiving the data packet, therefore, the importance of transmitting the data packet is higher than the importance of receiving the data packet.

For convenience of understanding the time length for sending the data packet and the time length for receiving the data packet, in this embodiment, a 10-minute SL communication is taken as an example for the 5 UEs, and then the time length for sending the data packet by each UE is 2 minutes, and the time length for receiving the data packet is 8 minutes.

In step 807, when the SL Gap is used to receive the data packet, the UE selects the measurement Gap, and performs step 808.

Step 808, the UE performs neighbor cell measurement in the measurement Gap, and ends the procedure.

In step 809, when the SL Gap is used to transmit the data packet, the UE selects the SL Gap.

In step 810, the UE transmits a data packet in the SL Gap.

In addition, by selecting the measurement Gap or the SL Gap according to whether the SL Gap is used to receive or transmit a packet, the SL Gap may be selected when the SL Gap is used to transmit a packet, and since the importance of transmitting a packet is higher than that of receiving a packet, the UE preferentially selects the SL Gap to transmit a packet to ensure normal transmission of a packet.

Fig. 9 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention. The Gap selection apparatus is used in a UE, and may include:

a receiving unit 910, configured to receive configuration information sent by a base station, where the configuration information is used to indicate a time when a measurement Gap occurs;

a processing unit 920, configured to determine whether the measurement Gap is in conflict with the SL Gap according to the time when the measurement Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap.

In summary, the Gap selection apparatus provided in the embodiment of the present invention selects one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SLGap which are completely staggered with each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap which are completely staggered with each other, and achieving the effect of improving the efficiency of configuring the Gap.

Please refer to fig. 9, which illustrates a schematic structural diagram of another Gap selection apparatus according to an embodiment of the present invention. The Gap selection apparatus is used in a UE, and may include:

a processing unit 920, configured to determine whether the measurement Gap collides with the SL Gap according to the time when the measurement Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy; when the measurement Gap is judged to conflict with the SL Gap, selecting one of the measurement Gap and the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap.

In a first possible implementation manner, the processing unit 920 is specifically configured to:

determining a time period corresponding to the next measurement Gap after the current moment according to the time of the measurement Gap, determining a time period of the next SL Gap after the current moment according to the time of the SL Gap, judging whether the time period corresponding to the measurement Gap is overlapped with the time period of the SL Gap, wherein the minimum value of the time period corresponding to the measurement Gap is the time period of the measurement Gap, and the maximum value of the time period corresponding to the measurement Gap is the sum of the time period of the measurement Gap and the time period required for switching the UE from the measurement Gap to the SL Gap; alternatively, the first and second electrodes may be,

and determining a time period corresponding to the next SL Gap after the current time according to the time of the SL Gap, determining a time period of the next measurement Gap after the current time according to the time of the measurement Gap, and judging whether the time period corresponding to the SL Gap is overlapped with the time period of the measurement Gap, wherein the minimum value of the time period corresponding to the SL Gap is the time period of the SL Gap, and the maximum value of the time period corresponding to the SL Gap is the sum of the time period of the SL Gap and the time period required for the UE to switch from the SL Gap to the measurement Gap.

In a second possible implementation form of the method,

a receiving unit 910, further configured to obtain a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by a base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE;

a processing unit 920, specifically configured to select a measurement Gap when the measurement Gap is higher priority than the SL Gap; alternatively, when the measurement Gap is of low priority compared to the SL Gap, the SL Gap is selected.

In a third possible implementation form of the method,

the receiving unit 910 is further configured to obtain a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality;

a processing unit 920, specifically configured to compare the signal parameter obtained by the receiving unit 910 with a signal threshold, where the signal threshold is issued by a base station, or the signal threshold is determined by the UE; when the signal parameter is smaller than the signal threshold value, selecting to measure Gap; alternatively, the SL Gap is selected when the signal parameter is greater than the signal threshold value.

In a fourth possible implementation form of the method,

a receiving unit 910, further configured to obtain a priority of the data packet;

a processing unit 920, configured to compare the priority of the data packet obtained by the receiving unit 910 with a data packet priority threshold, where the data packet priority threshold is issued by a base station, or the data packet priority threshold is determined by the UE; when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting to measure Gap; alternatively, the SL Gap is selected when the priority of the packet is above the packet priority threshold.

In a fifth possible implementation manner, the processing unit 920 is specifically configured to:

determining whether the data packet belongs to a PS service;

when the data packet does not belong to the PS service, selecting to measure Gap; alternatively, the first and second electrodes may be,

when the packet belongs to PS service, SL Gap is selected.

In a sixth possible implementation manner, the processing unit 920 is specifically configured to:

determining whether the frequency of the adjacent cell belongs to a reduction performance group, wherein the reduction performance group is a frequency group with the worst time delay performance in each frequency group, and the frequency group is obtained by grouping the frequencies required to be measured by the UE;

when the frequency does not belong to the reduction performance group, selecting measurement Gap; alternatively, the first and second electrodes may be,

when the frequency belongs to the subtractive performance group, the SL Gap is selected.

In a seventh possible implementation manner, the processing unit 920 is specifically configured to:

determining whether the SL Gap is used for receiving or sending a data packet, wherein the SL Gap is indicated by a base station whether the SL Gap is used for receiving or sending the data packet, or the SL Gap is determined by a UE whether the SL Gap is used for receiving or sending the data packet;

when the SL Gap is used for receiving data packets, selecting a measurement Gap; alternatively, the first and second electrodes may be,

when the SL Gap is used to transmit a packet, the SL Gap is selected.

Fig. 10 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention. The Gap selection device is used in a base station and can include:

a processing unit 1010 configured to determine a measurement Gap configured for the UE; generating configuration information indicating a time when the measurement Gap occurs;

a sending unit 1020, configured to send the configuration information generated by the processing unit 1010 to the UE, where the configuration information is used to trigger the UE to determine whether the measurement Gap and the SL Gap conflict or not according to the occurrence time of the measurement Gap and the occurrence time of the SL Gap, and the occurrence time of the SLGap is configured according to a predetermined policy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap.

In summary, the Gap selection apparatus provided in the embodiment of the present invention determines the measurement Gap configured for the UE; generating configuration information indicating a time when the measurement Gap occurs; sending configuration information to the UE, wherein the configuration information is used for triggering the UE to select one of the measurement Gap and the SL Gap when the measurement Gap conflicts with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or, when the SL Gap is selected, the data packet is transmitted in the SL Gap, so that when the measurement Gap collides with the SL Gap, the UE can still perform neighbor measurement in the measurement Gap or transmit the data packet in the SL Gap without configuring the measurement Gap and the SL Gap which are completely staggered with each other, thereby solving the problems of difficulty in configuring the Gap and low configuration efficiency caused by configuring the measurement Gap and the SL Gap which are completely staggered with each other, and achieving the effect of improving the efficiency of configuring the Gap.

Referring to fig. 10, a schematic structural diagram of another Gap selection device according to an embodiment of the present invention is shown. The Gap selection device is used in a base station and can include:

a processing unit 1010, configured to determine to generate configuration information for a measurement Gap configured for a UE, where the configuration information is used to indicate a time when the measurement Gap occurs;

In a first possible implementation manner, the sending unit 1020 is further configured to send, to the UE, a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is used to instruct the UE to select the measurement Gap or the SLGap.

In a second possible implementation manner, the sending unit 1020 is further configured to send a signal threshold value to the UE, where the signal threshold value is used to instruct the UE to select measurement Gap or SL Gap.

In a third possible implementation manner, the sending unit 1020 is further configured to send a packet priority threshold to the UE, where the packet priority threshold is used to indicate that the UE selects to measure a Gap or an SL Gap.

In a fourth possible implementation manner, the sending unit 1020 is further configured to indicate, to the UE, whether the SL Gap is used to receive a data packet or send a data packet, and whether the SL Gap is used to receive a data packet or send a data packet is used to indicate the UE to select a measurement Gap or the SL Gap.

Fig. 11 is a schematic structural diagram of a Gap selection device according to an embodiment of the present invention. The Gap selection device may include: a bus 1101, and a processor 1102, a memory 1103, a transmitter 1104 and a receiver 1105 connected to the bus. The memory 1103 is used to store, among other things, instructions configured to be executed by the processor 1102.

When the Gap selection device is used in the UE:

a receiver 1105, configured to receive configuration information sent by a base station, where the configuration information is used to indicate a time when the measurement Gap occurs;

a processor 1102, configured to determine whether the measurement Gap collides with the SL Gap according to the time when the measurement Gap occurs and the time when the SL Gap occurs, where the time when the SL Gap occurs is configured according to a predetermined policy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; alternatively, when the SL Gap is selected, the packet is transmitted in the SL Gap.

In a first possible implementation manner, the processor 1102 is specifically configured to:

In a second possible implementation manner, the receiver 1105 is further configured to obtain a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE;

a processor 1102, specifically configured to select a measurement Gap when the measurement Gap is of a higher priority than the SL Gap; alternatively, when the measurement Gap is of low priority compared to the SL Gap, the SL Gap is selected.

In a third possible implementation manner, the receiver 1105 is further configured to obtain a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality;

the processor 1102 is specifically configured to compare the signal parameter with a signal threshold, where the signal threshold is issued by the base station, or the signal threshold is determined by the UE; when the signal parameter is smaller than the signal threshold value, selecting to measure Gap; alternatively, the SL Gap is selected when the signal parameter is greater than the signal threshold value.

In a fourth possible implementation manner, the receiver 1105 is further configured to obtain a priority of the data packet;

the processor 1102 is specifically configured to compare the priority of the data packet with a packet priority threshold, where the packet priority threshold is issued by a base station, or the packet priority threshold is determined by the UE; when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting to measure Gap; alternatively, the SL Gap is selected when the priority of the packet is above the packet priority threshold.

In a fifth possible implementation manner, the processor 1102 is specifically configured to:

determining whether the data packet belongs to a PS service;

when the packet belongs to PS service, SL Gap is selected.

In a sixth possible implementation manner, the processor 1102 is specifically configured to:

In a seventh possible implementation manner, the processor 1102 is specifically configured to include:

when the SL Gap is used to transmit a packet, the SL Gap is selected.

When the Gap selection device is used in a base station:

a processor 1102 configured to determine a measurement Gap configured for the UE; generating configuration information indicating a time when the measurement Gap occurs;

a transmitter 1104, configured to transmit the configuration information generated by the processor 1102 to the UE, where the configuration information is used to trigger the UE to determine whether the measurement Gap and the SL Gap conflict with each other according to the time of the measurement Gap and the time of the SL Gap, and the time of the SL Gap is configured according to a predetermined policy; selecting one of the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; or, when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; when the SL Gap is selected, the data packet is transmitted in the SL Gap.

In a first possible implementation, the transmitter 1104 is further configured to send, to the UE, a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is used to instruct the UE to select the measurement Gap or the SL Gap.

In a second possible implementation manner, the transmitter 1104 is further configured to send a signal threshold to the UE, where the signal threshold is used to instruct the UE to select measurement Gap or SL Gap.

In a third possible implementation manner, the transmitter 1104 is further configured to send a packet priority threshold to the UE, where the packet priority threshold is used to instruct the UE to select a measurement Gap or a SL Gap.

In a fourth possible implementation, the transmitter 1104 is further configured to indicate to the UE whether the SL Gap is used to receive or transmit a data packet, and whether the SL Gap is used to receive or transmit a data packet is used to indicate to the UE to select a measurement Gap or the SL Gap.

It should be noted that: in the Gap selection apparatus provided in the above embodiment, when performing Gap selection, only the division of the above functional modules is illustrated, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the Gap selection apparatus is divided into different functional modules to complete all or part of the above described functions. In addition, the Gap selection apparatus provided in the above embodiments and the Gap selection method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A Gap selection method used in a User Equipment (UE), the method comprising:

when a measurement Gap appears after the current time, positioning a first time backwards based on the starting time of the measurement Gap to obtain a first time, detecting whether an SLgap appears in a time period determined by the starting time and the first time, and determining that the measurement Gap and the SL Gap conflict when an SL Gap appears in the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value of the first time length is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE to switch from the measurement Gap to the SL Gap;

when the SL Gap is selected, data packets are transmitted in the SL Gap.

2. The method of claim 1, further comprising:

determining a time period corresponding to a next SL Gap after the current time according to the time of the SL Gap, determining a time period corresponding to a next measurement Gap after the current time according to the time of the measurement Gap, and judging whether the time period corresponding to the SL Gap and the time period of the measurement Gap are overlapped, wherein the minimum value of the time period corresponding to the SL Gap is the time period of the SL Gap, and the maximum value of the time period corresponding to the SL Gap is the sum of the time period of the SL Gap and the time period required by the UE to switch from the SLgap to the measurement Gap.

3. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

4. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

5. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

acquiring the priority of the data packet;

6. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

determining whether the data packet belongs to a public safety PS service;

and when the data packet belongs to the PS service, selecting the SL Gap.

7. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

8. The method of claim 1 or 2, wherein the selecting one of the measurement Gap and the SL Gap comprises:

the SL Gap is selected when the SL Gap is used to send data packets.

9. A Gap selection method used in a base station, the method comprising:

determining a measurement Gap configured for User Equipment (UE);

sending the configuration information to the UE, wherein the configuration information is used for triggering the UE to locate backward a first time to obtain a first time based on a starting time of measuring Gap when the measuring Gap appears after the current time, detecting whether an SL Gap appears in a time period determined by the starting time and the first time, and determining that the measuring Gap and the SL Gap collide when an SL Gap appears in the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value of the first time length is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE to switch from the measurement Gap to the SL Gap; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

10. The method of claim 9, further comprising:

11. The method of claim 9, further comprising:

12. The method of claim 9, further comprising:

13. The method of claim 9, further comprising:

14. A Gap selection apparatus used in a User Equipment (UE), the apparatus comprising:

the processing unit is used for positioning a first time backward based on the starting time of the measurement Gap to obtain a first time when the measurement Gap appears after the current time, detecting whether an SL Gap appears in a time period determined by the starting time and the first time, and determining that the measurement Gap and the SL Gap collide when an SL Gap appears in the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value of the first time length is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE to switch from the measurement Gap to the SL Gap; selecting one from the measurement Gap and the SLgap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

15. The apparatus of claim 14, wherein the apparatus is further configured to:

16. The apparatus of claim 14 or 15,

the receiving unit is further configured to obtain a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE;

17. The apparatus of claim 14 or 15,

18. The apparatus of claim 14 or 15,

the processing unit is configured to compare the priority of the data packet obtained by the receiving unit with a data packet priority threshold, where the data packet priority threshold is issued by a base station, or the data packet priority threshold is determined by the UE; when the priority of the data packet is lower than the threshold value of the priority of the data packet, selecting the measurement Gap; or, when the priority of the data packet is higher than the threshold value of the priority of the data packet, selecting the SL Gap.

19. The apparatus according to claim 14 or 15, wherein the processing unit is specifically configured to:

determining whether the data packet belongs to a public safety PS service;

and when the data packet belongs to the PS service, selecting the SL Gap.

20. The apparatus according to claim 14 or 15, wherein the processing unit is specifically configured to:

21. The apparatus according to claim 14 or 15, wherein the processing unit is specifically configured to:

the SL Gap is selected when the SL Gap is used to send data packets.

22. A Gap selection apparatus for use in a base station, the apparatus comprising:

a processing unit, configured to determine a measurement Gap configured for a user equipment UE; generating configuration information indicating a time when the measurement Gap occurs;

a sending unit, configured to send the configuration information generated by the processing unit to the UE, where the configuration information is used to trigger the UE to locate backward a first time to obtain a first time based on a starting time of measuring Gap when the UE appears a measuring Gap after a current time, detect whether an SL Gap appears in a time period determined by the starting time and the first time, and determine that the measuring Gap and the SL Gap collide when an SL Gap appears in the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE for switching from the measurement Gap to the SLgap; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

23. The apparatus of claim 22, wherein the sending unit is further configured to send, to the UE, a relative priority between measurement Gap and SL Gap, and wherein the relative priority between measurement Gap and SL Gap is used to instruct the UE to select the measurement Gap or the SL Gap.

24. The apparatus of claim 22, wherein the sending unit is further configured to send a signal threshold value to the UE, and wherein the signal threshold value is used to instruct the UE to select the measurement Gap or the SL Gap.

25. The apparatus of claim 22, wherein the sending unit is further configured to send a packet priority threshold to the UE, and wherein the packet priority threshold is used to instruct the UE to select the measurement Gap or the SL Gap.

26. The apparatus of claim 22, wherein the sending unit is further configured to indicate, to the UE, whether the SL Gap is used to receive or send a data packet, and wherein whether the SL Gap is used to receive or send a data packet is used to indicate that the UE selects the measurement Gap or the SL Gap.

27. A Gap selection apparatus used in a User Equipment (UE), the apparatus comprising: a bus, and a processor, memory, transmitter, and receiver connected to the bus;

wherein the memory is to store a number of instructions configured to be executed by the processor;

the processor is used for positioning a first time backward based on a starting time of measuring Gap to obtain a first time when the measuring Gap appears after the current time, detecting whether an SL Gap appears in a time period determined by the starting time and the first time, and determining that the measuring Gap and the SLgap collide when an SL Gap appears in the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value of the first time length is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE to switch from the measurement Gap to the SL Gap; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

28. The apparatus of claim 27, wherein the apparatus is further configured to:

29. The apparatus of claim 27 or 28,

the receiver is further configured to obtain a relative priority between the measurement Gap and the SL Gap, where the relative priority between the measurement Gap and the SL Gap is issued by the base station, or the relative priority between the measurement Gap and the SL Gap is determined by the UE;

30. The apparatus of claim 27 or 28,

the receiver is further configured to acquire a signal parameter of a serving cell of the UE, where the signal parameter is signal strength or signal quality;

31. The apparatus of claim 27 or 28,

the receiver is further configured to obtain a priority of the data packet;

32. The apparatus according to claim 27 or 28, wherein the processor is specifically configured to:

determining whether the data packet belongs to a public safety PS service;

and when the data packet belongs to the PS service, selecting the SL Gap.

33. The apparatus according to claim 27 or 28, wherein the processor is specifically configured to:

34. The apparatus according to claim 27 or 28, wherein the processor is specifically configured to include:

the SL Gap is selected when the SL Gap is used to send data packets.

35. A Gap selection apparatus for use in a base station, the apparatus comprising: a bus, and a processor, memory, transmitter, and receiver connected to the bus;

the transmitter is configured to send the configuration information generated by the processor to the UE, where the configuration information is used to trigger the UE to locate backward a first time based on a start time of measurement Gap when one measurement Gap occurs after the current time, detect whether one SL Gap occurs within a time period determined by the start time and the first time, and determine that the measurement Gap and the SL Gap collide when one SL Gap occurs within the time period; when one SL Gap does not appear in the time period, determining that the measurement Gap and the SL Gap do not conflict, wherein the minimum value of the first time length is the duration of the measurement Gap, the maximum value is the duration obtained by adding a first preset time length to the duration of the measurement Gap, and the first preset time length is the time length required by the UE for switching from the measurement Gap to the SLgap; selecting one from the measurement Gap and the SL Gap when the measurement Gap collides with the SL Gap; when the measurement Gap is selected, performing neighbor measurement in the measurement Gap; or when the SL Gap is selected, transmitting a data packet in the SL Gap.

36. The apparatus of claim 35,

the transmitter is further configured to send, to the UE, a relative priority between measurement Gap and SL Gap, where the relative priority between measurement Gap and SL Gap is used to instruct the UE to select the measurement Gap or the SL Gap.

37. The apparatus of claim 35,

the transmitter is further configured to send a signal threshold value to the UE, where the signal threshold value is used to instruct the UE to select the measurement Gap or the SL Gap.

38. The apparatus of claim 35,

the transmitter is further configured to send a packet priority threshold to the UE, where the packet priority threshold is used to instruct the UE to select the measurement Gap or the SL Gap.

39. The apparatus of claim 35,

the transmitter is further configured to indicate to the UE whether the SL Gap is to receive or transmit a data packet, and whether the SL Gap is to receive or transmit a data packet is to indicate to the UE to select the measurement Gap or the SL Gap.