CN109246659A

CN109246659A - A kind of communication control method, device and computer readable storage medium

Info

Publication number: CN109246659A
Application number: CN201710653262.1A
Authority: CN
Inventors: 汪梦珍; 陈玉芹; 陈琳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-06-15
Filing date: 2017-08-02
Publication date: 2019-01-18

Abstract

A kind of communication control method, device and computer readable storage medium, the communication control method includes: that the first user equipment receives side chain measurement configuration information, and the side chain measurement configuration information includes supporting the measurement configuration information of the side chain link of user equipment of side chain carrier wave polymerization；First user equipment executes side chain measurement.Another communication control method includes: that the first user equipment receives side chain state of activation instruction information, and the side chain state of activation instruction information is used to indicate the activation or deactivation status of the side chain link of side chain carrier wave syndication users equipment；The first user equipment activation deactivates side chain link.Communication control method provided by the present application realizes the control of carrier wave polymerization side chain link.

Description

Communication control method, device and computer readable storage medium

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a communication control method, apparatus, and computer-readable storage medium.

Background

With the development of communication technology and the abundance of demand, the application scenarios of wireless communication are becoming wider, and a Vehicle Networking (Vehicle Networking) is typical. The vehicle networking is that vehicles can participate in wireless communication, real-time information interaction between vehicles, vehicles and people, vehicles and road side infrastructure is realized by utilizing advanced wireless cellular communication technology, current states (including positions, speeds, accelerations and running paths of the vehicles) and known road environment information are informed, road danger conditions are cooperatively sensed, various collision early warning information is provided in time, and road traffic safety accidents are prevented. The modes of the internet of vehicles communication are specifically divided into three types: Vehicle-to-Vehicle Communications (V2V for short), Vehicle-to-Infrastructure Communications (V2I/V2N for short), and Vehicle-to-Pedestrian Communications (V2P for short), as shown in fig. 1, and these three types may also be referred to as Vehicle-to-electrical Communications (V2X for short).

The prior art has supported the use of cellular wireless communication technology to implement car networking applications. In a V2V/V2P/V2I vehicle networking communication mode, transmission of vehicle networking information is mostly mainly in a Broadcast and Multicast mode, and an existing system base station supports a Broadcast mechanism based on MBSFN (Multicast Broadcast Single Frequency Network) and SC-PTM (Single Cell Point To multipoint). In addition, a UE-to-UE direct discovery/communication (D2D/ProSe/sidelink direct discovery/communication) mechanism may also be used to support transmission of V2X messages over sidelink/sidelink links. Enhanced eV2X communication places higher performance demands in terms of latency, reliability, data transfer rates, etc. to support vehicle networking applications such as vehicle fleet, remote driving, sensor applications, etc. The data rate varies between 0.5Mbps and 1Gbps in the application scenario of eV 2X. For V2X communication over PC5 interface, the prior art has not been able to meet the higher data rate requirements of eV2X scenarios.

Disclosure of Invention

At least one embodiment of the present invention provides a communication control method, apparatus and computer-readable storage medium, which meet the high data rate requirement in a device-to-device communication scenario.

In order to achieve the object of the present invention, at least one embodiment of the present invention provides a communication control method, including:

the method comprises the steps that a first user equipment receives side link measurement configuration information, wherein the side link measurement configuration information comprises measurement configuration information of a side link of the user equipment supporting side link carrier aggregation;

the first user equipment performs sidelink measurements.

In an optional embodiment, the receiving, by the first user equipment, the sidelink measurement configuration information includes:

the first user equipment receives the sidelink measurement configuration information sent by the second user equipment;

or, the first user equipment receives the sidelink measurement configuration information sent by the base station.

In an optional embodiment, the sidelink measurement configuration information includes at least one of:

measurement object information, measurement reporting configuration information, measurement identification, measurement quantity information, measurement gap configuration information and side link updating criteria.

In an optional embodiment, the measurement object information includes at least one of: the measurement target user equipment identifier, the aggregation side link carrier frequency information between the measurement target user equipment identifier and the measurement target user equipment, other side link carrier frequency information supported by the measurement target user equipment, synchronous resources and/or synchronous sequences corresponding to the side link carrier frequency, special resources for side link control information, and the measurement identifier special for side link measurement.

In an optional embodiment, the measurement reporting configuration information includes at least one of:

reporting trigger type indication information, reporting identification information of a triggered trigger event, reporting relevant threshold value information of the triggered trigger event, reporting relevant offset information of the triggered trigger event, hysteresis parameter information, trigger required duration, reporting destination information, triggering measurement quantity information, reporting measurement quantity information, maximum reporting sidelink link number, reporting interval, reporting quantity, and reporting simplified measurement result indication.

In an optional embodiment, the reporting destination information is used to indicate reporting sidelink carrier aggregation measurement result information;

the measurement quantity information, the trigger measurement quantity information and the report measurement quantity information comprise at least one of the following: a side link discovery channel reference signal received power, a side link discovery channel reference signal received quality, a side link synchronization channel reference signal received power, a side link synchronization channel reference signal received quality, a side link communication control channel reference signal received power, a side link communication control channel reference signal received quality, a side link communication data channel reference signal received power, a side link communication data channel reference signal received quality, a side link received signal strength indication;

the simplified measurement result reporting indication is used for indicating whether to report the simplified measurement result.

In an optional embodiment, the side-link update criterion includes a trigger event, which indicates that the first user equipment sends side-link update information to the second user equipment when any of the trigger events is satisfied.

In an optional embodiment, the triggering event comprises at least one of:

first side chain triggering event: the measured value of the main sidelink link is lower than a first threshold value;

a second side-link triggering event: the measured value of the main sidelink is lower than a second threshold value and the measured value of the auxiliary sidelink is higher than a third threshold value;

a third side-chain triggering event: the measured value of the auxiliary sidelink link is lower than a fourth threshold value;

fourth side-chain triggering event: the side link measurement values on other side link frequency points supported by the measurement object user equipment are higher than a fifth threshold value;

a fifth side chain triggering event: side link measurement values on other side link frequency points supported by the measurement object user equipment are higher than a first offset of the main side link;

a sixth side link triggering event: the side link measurement value on other side link frequency points supported by the measurement object user equipment is higher than the second offset of the auxiliary side link;

a seventh side link triggering event: the serving sidelink measurement is below a sixth threshold.

In an optional embodiment, before the first user equipment receives the sidelink measurement configuration information, the method further includes:

the first user equipment sends the supported side link frequency point information to second user equipment; or the first user equipment sends the supported sidelink frequency point information to a base station.

In an optional embodiment, the first user equipment performing the sidelink measurement comprises at least one of:

measuring side link discovery signals, measuring side link synchronous signals, measuring side link communication and measuring signals specially used for side link carrier frequency measurement.

In an optional embodiment, before the first user equipment performs the measurement on the sidelink discovery signal, the method further includes:

the side link access layer of the first user equipment triggers a non-access layer/high layer to send side link discovery request information on the corresponding side link carrier frequency and receive side link discovery response information sent on the corresponding side link carrier frequency; or

And the first user equipment receives the side link discovery information which is sent by a non-access layer/a high layer on the corresponding side link carrier frequency and triggered by the side link access layer of the second user equipment.

In an optional embodiment, before or after the first user equipment performs the measurement on the sidelink discovery signal, the method further includes:

the first user equipment receives a sidelink communication resource which is sent by a second user equipment and corresponds to a sidelink discovery resource, wherein the sidelink discovery resource and the sidelink communication resource can be on different sidelink carrier frequencies; or

The first user equipment receives a sidelink communication resource which is configured by a base station and corresponds to the sidelink discovery resource.

In an optional embodiment, before the first user equipment performs the measurement of the sidelink synchronization signal, the method includes:

the first user equipment receives a synchronization resource and/or a synchronization sequence which are used for side link carrier frequency measurement and sent by second user equipment or a base station;

or the first user equipment receives sidelink carrier aggregation resource configuration information sent by a second user equipment or a base station, wherein the sidelink carrier aggregation resource configuration information comprises at least one of the following: the method comprises the steps of side link synchronization signal sending indication, synchronization signal resource deviation, synchronization sequence identification, synchronization signal sending duration and synchronization signal sending period.

In an optional embodiment, before the first user equipment performs the measurement of the sidelink communication, the method further includes:

the first user equipment receives sidelink control information which is sent by second user equipment and used for sidelink carrier frequency measurement, and the sidelink control information carries a node pair identifier of the first user equipment and the second user equipment and/or a measurement identifier special for the sidelink measurement; or,

the first user equipment receives side link control information which is sent by second user equipment through a special resource and is used for side link carrier frequency measurement; or,

and the first user equipment receives the side link control information and data which are sent by the second user equipment and used for side link carrier frequency measurement, and carries a media access control unit indication to be used for side link measurement.

for the side link carrier frequency configured to the side link carrier aggregation, measuring the side link communication on the side link carrier frequency;

and performing side chain discovery on other side chain carrier frequencies which are not configured to the side chain carrier aggregation, and measuring the side chain discovery signal.

In an optional embodiment, after the first user equipment performs the sidelink measurement, the method further includes:

the first user equipment sends a side link measurement result report to second user equipment;

or, the first user equipment sends a side link measurement result report to a base station;

or the first user equipment sends the side link updating information to the second user equipment.

In an optional embodiment, the sidelink measurement report comprises at least one of:

the measurement identification information, the identification of the user equipment to be measured, the index of the side link, the frequency point of the side link, the measurement result information of the side link on other side link frequency points supported by the user equipment to be measured, and the measurement result is simplified.

The sidelink link measurement information comprises at least one of:

a side link discovery channel reference signal received power measurement, a side link discovery channel reference signal received quality measurement, a side link synchronization channel reference signal received power measurement, a side link synchronization channel reference signal received quality measurement, a side link communication control channel reference signal received power measurement, a side link communication control channel reference signal received quality measurement, a side link communication data channel reference signal received power measurement, a side link communication data channel reference signal received quality measurement, a side link received signal strength indication measurement.

In an alternative embodiment, the simplified measurement results include:

side link carrier frequency information;

and the indication information corresponding to the side link carrier frequency is used for indicating the addition/release of the side link on the corresponding side link carrier frequency.

In an optional embodiment, after the first user equipment sends the side-link measurement result report to the second user equipment, the method further includes:

and the first user equipment receives the side link updating information sent by the second user equipment.

In an optional embodiment, after the first ue sends the sidelink measurement result report to the base station, the method further includes:

the first user equipment receives sidelink updating information sent by the base station;

and the first user equipment sends the side link updating information to the second user equipment.

In an optional embodiment, the sidelink update information is sidelink link add/modify/release information or secondary sidelink link add/modify/release information or primary sidelink link change information.

In an optional embodiment, the sidelink update information is sidelink link addition/modification or secondary sidelink link addition/modification information, and includes at least one of: the first user equipment identification information, the second user equipment identification information, the frequency point where the auxiliary side link or the side link is located, the auxiliary side link or the side link index, the auxiliary side link or the side link synchronization information, and the auxiliary side link or the side link resource pool information.

In an optional embodiment, the sidelink update information is sidelink link release information or secondary sidelink link release information, and includes at least one of: the first user equipment identification information, the second user equipment identification information, the index of the released side link or the auxiliary side link, the frequency point where the side link or the auxiliary side link is located, and the reason for the release.

In an optional embodiment, the sidelink update information is a primary sidelink link replacement information, and includes at least one of: the method comprises the steps of first user equipment identification information, second user equipment identification information, a frequency point where a target main and sidelink link is located, target main and sidelink link synchronization information and target main and sidelink link resource pool information.

In an optional embodiment, when the sidelink update information is sidelink addition/modification information or secondary sidelink addition/modification information, after the first user equipment receives the sidelink update information sent by the second user equipment, the method further includes:

the first user equipment updates the side link carrier aggregation information and sends side link adding/modifying confirmation information or auxiliary side link adding/modifying confirmation information to the second user equipment; or,

and the first user equipment updates the side link carrier aggregation information and establishes side link direct communication connection with the second user equipment on the frequency point where the added side link or the auxiliary side link is located.

In an optional embodiment, when the sidelink update information is primary sidelink link replacement information, after the first user equipment receives the sidelink update information, the method further includes:

the first user equipment releases the main sidelink and all the auxiliary sidelink;

and the first user equipment and the second user equipment establish a side link direct communication connection or a new main side link on the frequency point where the replaced target main side link is located.

An embodiment of the present invention provides a communication control apparatus, including a memory and a processor, where the memory stores a program, and the program is read and executed by the processor to implement the communication control method.

An embodiment of the present invention provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the above-described communication control method.

An embodiment of the present invention provides a communication control method, including:

the method comprises the steps that a first user equipment receives side link activation state indication information, wherein the side link activation state indication information is used for indicating the activation or deactivation state of a side link carrier aggregation user equipment;

the first user equipment activates or deactivates the sidelink link.

In an optional embodiment, the receiving, by the first user equipment, the side link activation status indication information includes:

the first user equipment receives the side link activation state indication information sent by the second user equipment;

or, the first user equipment receives the sidelink activation state indication information sent by the base station.

In an optional embodiment, the sidelink activation status indication information sent by the base station and received by the first user equipment includes activation/deactivation statuses of sidelink links between the first user equipment and one or more target user equipments.

In an optional embodiment, after the first user equipment receives the sidelink activation status indication information sent by the base station, the method further includes:

the first user equipment sends side link activation state indication information to target user equipment, and the side link activation/deactivation state of the side link between the first user equipment and the target user equipment is carried.

In an optional embodiment, the sidelink activation status indication information sent by the base station and received by the first user equipment is carried by a sidelink activation/deactivation media access control unit of a downlink transmission channel.

In an optional embodiment, the side link activation status indication information comprises one or more status indication fields, each of the status indication fields comprising:

the target user equipment identification subfield is used for carrying a target user equipment identification;

an activation status indication subfield for indicating an activation/deactivation status of a sidelink of the first user equipment and a target user equipment, and the activation/deactivation status of each sidelink of the first user equipment and the target user equipment is indicated using one bit.

In an optional embodiment, before the first user equipment receives the sidelink activation status indication information sent by the base station, the method further includes:

the first user equipment sends side link auxiliary information to the base station;

the side-link assistance information comprises at least one of:

the method comprises the steps of data volume to be transmitted, data rate requirement, time delay requirement, current activated side link communication link resource load condition, power saving requirement and electric quantity indication.

In an optional embodiment, when the sidelink activation status indication information is transmitted between the user equipments, the sidelink activation status indication information is carried by a sidelink control signaling; or the side link is carried by a side link activation/deactivation media access control unit in a side link transmission channel.

In an optional embodiment, when the sidelink activation status indication information is carried by the sidelink control signaling, the sidelink activation status indication information includes:

an active sidelink list/index;

or, a deactivated sidelink link list/index;

or, an activated sidelink list/index and a deactivated sidelink list/index;

or a bit map indicating the activation/deactivation status of each sidelink.

In an optional embodiment, when the indication information of the side link activation state is carried by a side link activation/deactivation mac control element in the side link transport channel, the activation/deactivation state of each side link is indicated by using one bit of the side link activation/deactivation mac control element.

In an optional embodiment, the method further comprises:

the first user equipment maintaining a deactivation timer for each activated sidelink link;

deactivating the sidelink after the expiration of the deactivation timer's timing time if no data is being sent or received on the sidelink during the deactivation timer's timing time;

starting or restarting the deactivation timer if there is data to send or receive on the sidelink link or during the timing time of the deactivation timer.

In an optional embodiment, the timing time of the deactivation timer is obtained by the first user equipment from pre-configuration information, or obtained from sidelink carrier configuration information sent by the second user equipment, or obtained from radio resource control-specific signaling sent by the base station containing the timing time configuration of the deactivation timer.

In an alternative embodiment, the timing of the deactivation timer is specific to the user equipment or specific to the user equipment pair, wherein two user equipments with sidelink links are called user equipment pair.

In an alternative embodiment, the time of the deactivation timer is decremented or incremented in units of subframes with sidelink resources.

In an optional embodiment, the method further comprises:

when the side link is in an activated state, supporting the first user equipment to perform layer 1 measurement, side link quality measurement and data transmission on the side link;

and when the side link is in a deactivated state, supporting the first user equipment to perform side link quality measurement on the side link.

the method comprises the steps that a first user equipment sends side link activation state indication information to a second user equipment, wherein the side link activation state indication information is used for indicating the activation or deactivation state of a side link carrier aggregation user equipment;

the first user equipment activates or deactivates the sidelink link.

In an optional embodiment, before the first user equipment sends the side link activation status indication information to the second user equipment, the method further includes:

the first user equipment receives side chain auxiliary information sent by second user equipment;

the side-link assistance information comprises at least one of:

According to the scheme provided by the application, the activation/deactivation states of one or more sidelink links between the UEs can be configured; and the method can measure a plurality of sidelink links between the UEs and sidelink links on available sidelink carrier frequencies of the UEs, and execute addition/modification/replacement/release of the sidelink links between the UEs according to the measurement result. By adopting the scheme provided by the application, the sidelink link of the carrier aggregation can be effectively maintained and dynamically updated, so that the sidelink communication of the carrier aggregation is more perfect, and further, the contribution to improving the data transmission rate of the communication of the side link interface V2X is made.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic diagram of a V2X communication mode in the related art;

fig. 2 is a schematic diagram of V2X sidelink communication under sidelink carrier aggregation;

fig. 3 is a flowchart of a communication control method according to an embodiment of the present invention;

fig. 4 is a flowchart of a communication control method according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating an MAC CE format activation/deactivation according to an embodiment of the present invention;

fig. 6 is a flow chart of a second SL Slink activation/deactivation process according to an embodiment of the present invention;

fig. 7 is a flow chart of a three SL Slink activation/deactivation process according to an embodiment of the present invention;

FIG. 8 is a diagram illustrating a three activation/deactivation MAC CE format according to an embodiment of the present invention;

fig. 9 is a flowchart of a five-UE autonomous sidelink measurement configuration negotiation according to an embodiment of the present invention;

fig. 10 is a flowchart of autonomous sidelink measurement configuration and sidelink link update of six UEs according to the embodiment of the present invention;

fig. 11 is a flowchart of a seventh sidelink measurement configuration and reporting, and a sidelink link update auxiliary configuration according to the embodiment of the present invention;

fig. 12 is a flowchart of sidelink measurement configuration and a sidelink link adding/modifying/releasing method of an eight sidelink link according to the 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 below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

In LTE (Long Term Evolution), a carrier aggregation (carrier aggregation) mechanism is used to increase data rate and system capacity. After the carrier aggregation is configured, the UE can perform data transceiving operation with multiple cells at the same time. In order to improve the data transmission rate of sidelink (SL for short) V2X communication, a solution is to configure a sidelink carrier frequency set for the UE, and the UE simultaneously transmits/receives data on multiple sidelink carrier frequencies, that is, the UE uses sidelink links on different sidelink carrier frequencies to perform V2X communication. In this case, an important issue is how to maintain and update the sidelink link over multiple aggregated sidelink carrier frequencies between UEs.

sidelink carrier aggregation is a direct and effective method for improving the data rate of V2X communication of a UE on a sidelink. As shown in fig. 2, f1, f2, f3, f4 are sidelink carrier frequencies (on which sidelink resources can be provided to support V2 xsilk discovery/communication), UE1 resides on carrier frequency f2, and is within carrier frequencies f1, f 4; UE2 resides at carrier frequency f3 while within carrier frequencies f1, f 4; the UE3 resides at carrier frequency f2 while within carrier frequency f 1. UE1 and UE2 may communicate V2X sidelink over carrier frequencies f1, f4 through sidelink carrier aggregation; UE1 and UE3 may communicate V2X sidelink over carrier frequencies f2 and f1 through sidelink carrier aggregation. Taking UE1 and UE3 side-link carrier aggregation V2X Sidelink communication as an example, assume that a Sidelink link established on f1 is a Primary Sidelink link (SL Primary link for short), and another carrier frequency Sidelink link added through SLPlink is a Secondary Sidelink link (SL Secondary link for short). The SL Plink and all SL plinks between UE1 and UE3 are their serving sidelink communication links (serving sidelink). In other embodiments, the sidelink links on all sidelink carriers between UE1 and UE3 may also be peer-to-peer links, that is, the sidelink communication link on f1 and the sidelink link on f2 are 2 identical sidelink links, which is called peer-to-peer sidelink links.

To better manage battery consumption for UEs configured with sidelink carrier aggregation, the activation and deactivation states of SL Slink or sidelink links between pairs of communicating UEs may be configured. For a UE in RRC (Radio Resource Control) connected state, an eNB (evolved NodeB) may configure SL link or sidelink link activation/deactivation for a source UE and a target UE pair at the same time; for a UE without coverage of an E-UTRAN (Evolved umts terrestrial Radio Access Network), the UE may autonomously initiate activation/deactivation of a SL link or sidelink link to an opposite UE (the same applies to RRC connected UE). In addition, the MAC (Media Access Control) entity of the UE maintains a deactivation timer for each activated sidelink link (which may be an SL link or a peer sidelink link), and if the UE does not transmit or receive data on the sidelink link within the timing time of the deactivation timer, the sidelink link is deactivated. The method comprises the steps that a state sidelink link is activated, the UE can carry out layer 1 measurement on a corresponding carrier frequency (channel quality indication/precoding matrix index/rank indication/precoding type indication/channel state information reference signal resource indication, sidelink link quality measurement, data transmission on a SL Slink or an equivalent sidelink link, the state sidelink link is deactivated, and the UE can only carry out the sidelink link quality measurement on the corresponding carrier frequency.

For the UE configured with sidelink carrier aggregation, channel environments of SL Plink between the source UE and the target UE and one or more slslslsllinks or multiple peer sidelink links may change, the source UE and the target UE need to measure the quality of all serving sidelinks thereof, and measure on other sidelink frequency points supported by the opposite UE except the frequency point where the serving sidelink link is located, and determine whether to perform sidelink update according to the measurement result. For sidelink measurement, there are three ways: measuring side link discovery signals, measuring side link synchronization signals and measuring side link communication. If the quality of a certain sidelink link is deteriorated, the sidelink link can be released; if the quality of the sidelink link at some other sidelink frequency point (the frequency point where the non-serving sidelink link is located) is better, the sidelink link can be considered to be added to the sidelink link aggregated by the side chain carriers. SLPlunk may also be replaced based on the measurement if the SL Plunk link quality deteriorates. In general, there are two ways of sidelink carrier aggregation measurement configuration and SL Plink replacement or SL Slink replacement/release or sidelink link replacement/release: the method comprises the steps that the eNB carries out sidelink carrier aggregation measurement configuration based on the eNB-assisted SL Plink replacement or SL Slink replacement/release or sidelink link replacement/release, and the UE negotiates multi-sidelink link measurement and update/release conditions.

The following provides a method for activating/deactivating a sidelink link between a pair of communication UEs, a sidelink carrier aggregation measurement configuration, and a sidelink link update related signaling procedure, which are specifically possible, through embodiments. It should be noted that the UEs described in this application are all UEs supporting vehicle networking communication, including but not limited to vehicle UEs, pedestrian UEs (UEs supported by pedestrians), and UE type roadside units, and the UEs supporting vehicle networking communication have sidelink carrier aggregation capability. In addition, the method proposed in the present application is not limited to vehicle networking communication, but is also applicable to Device-to-Device communication and other applications, and is applicable to a UE with sidelink carrier aggregation capability that supports Device-to-Device (D2D) functionality. The Sidelink communications include Internet of vehicles (IOV) Sidelink communications and/or generic device-to-device Sidelink communications. The base station may be an eNB, or other type of base station, in this application.

At least one embodiment of the present invention provides a communication control method, as shown in fig. 3, including:

step S301, a first UE receives sidelink measurement configuration information, wherein the sidelink measurement configuration information comprises measurement configuration information of a sidelink link of a user equipment supporting sidelink carrier aggregation;

step S302, the first UE performs sidelink measurement.

Wherein the first UE performing sidelink measurements comprises: and the first UE carries out measurement of the sidelink link according to the sidelink measurement configuration information.

In an optional embodiment, the receiving, by the first UE, sidelink measurement configuration information includes:

the first UE receives the sidelink measurement configuration information sent by a second UE; or

And the first UE receives the sidelink measurement configuration information sent by the eNB.

In an optional embodiment, the first UE and the second UE are sidelink carrier aggregation capable UEs supporting vehicle networking communication or sidelink carrier aggregation capable UEs supporting device-to-device D2D communication;

and supporting a plurality of sidelink links on a plurality of sidelink aggregated carriers between the first UE with the sidelink carrier aggregation capability and the second UE.

The multiple sidelink links on the sidelink aggregated carrier include:

a main sidelink link SL Plink and one or more auxiliary sidelink links SL Slink;

or, multiple peer sidelink links;

wherein, the primary sidelink link SL Plink and all the secondary sidelink links SL Plink are collectively called as serving sidelink links (serving sidelinks);

all peer sidelink links are collectively referred to as serving sidelink links.

measurement quantity information for indicating a parameter to be measured; measurement object information indicating information on a measurement object to be measured; measuring and reporting configuration information; measuring the mark; measuring gap configuration information; and the side link updating criterion is used for indicating the criterion for updating the side link.

In an optional embodiment, the measurement quantity information includes at least one of:

reference Signal Receiving Power (RSRP) of the sidelink discovery channel, Reference Signal Receiving Quality (RSRQ) of the sidelink discovery channel, RSRP of the sidelink communication control channel, RSRQ of the sidelink communication control channel, RSRP of the sidelink communication data channel, RSRQ of the sidelink communication data channel, RSRP of the sidelink synchronization channel, RSRQ of the sidelink synchronization channel, and side-link received Signal strength indication.

In an optional embodiment, the measurement object information includes at least one of:

the UE identification of the measurement object, the aggregation side link carrier frequency information between the UE of the measurement object, other side link carrier frequency information supported by the UE of the measurement object, synchronous resources and/or synchronous sequences corresponding to the side link carrier frequency, special resources of the side link control information, and the measurement identification special for the side link measurement.

In an embodiment, the measurement object UE is identified as any one of: ProSe (proximity service) UE ID (identity), ProSe layer 2 (layer 2) UE ID, Cell Radio Network Temporary identity (C-RNTI). The sidelink carrier frequency information comprises at least one of the following: frequency point bandwidth, sidelink resource pool information and sidelink synchronization information.

reporting trigger type indication information, reporting identification information of a triggered trigger event, reporting relevant threshold value information of the triggered trigger event, reporting relevant offset information of the triggered trigger event, hysteresis parameter information, duration time required for triggering, reporting purpose information, triggering measurement quantity information, reporting measurement quantity information, maximum number of sidelink links, reporting interval, reporting number, and reporting simplified measurement result indication. The threshold information related to the trigger event means, for example, that the trigger event is a first sidelink trigger event: when the measured value of SL Plink is lower than the first threshold value, the relevant threshold value information of the trigger event is the first threshold value. For another example, the trigger event is a fifth sidelink trigger event: when the sidelink measured values on other sidelink frequency points except the frequency point where the service sidelink link is located are higher than the first offset of the SL Plink, the related offset information of the trigger event is the first offset.

For example, the reporting trigger type indication information includes event trigger and/or periodic trigger; the first user equipment reports a side link measurement result report when the event trigger is used for indicating that a preset trigger event is met; and the periodic trigger is used for indicating the first user equipment to report the side link measurement result report periodically. The reporting period can be configured as required. Specifically, the first ue may report a sidelink measurement result report to a second ue or a base station. Generally, when receiving the sidelink measurement configuration information from the second user equipment, the first user equipment reports a sidelink measurement result report to the second user equipment, and when receiving the sidelink measurement configuration information from the base station, the first user equipment reports a sidelink measurement result report to the base station.

For example, the reporting destination information is used to indicate that the UE reports sidelink carrier aggregation measurement result information;

for example, the reporting simplified measurement result indication is used to indicate whether to report the simplified measurement result;

for example, the triggered measurement quantity information is used to indicate a quantity of an event triggering condition, the reported measurement quantity information is used to indicate a quantity included in a measurement report, and the triggered measurement quantity information or the reported measurement quantity information includes any one of the following: RSRP of sidelink discovery channel, RSRQ of sidelink discovery channel, RSRP of sidelink communication control channel, RSRQ of sidelink communication control channel, RSRP of sidelink communication data channel, RSRQ of sidelink synchronization channel, sidelink received signal strength indication.

In an optional embodiment, the sidelink update criterion includes a trigger event, which indicates that the first UE initiates a sidelink update procedure to the second UE when any trigger event is satisfied. The side chain updating process comprises the following steps: SL Slink add/modify/release or SL Plink change or sidelink add/modify/release procedures. The initiating side chain updating process comprises the following steps: and the first UE sends the transmission sidelink updating information to the second UE. The side link update information is: SL Slink add/modify/release information or SL Plink replacement information or sidelink add/modify/release information.

In an optional embodiment, the trigger event (trigger event triggering reporting or trigger event including triggering sidelink update) includes at least one of:

first sidelink triggering event: the SL Plink measurement is below a first threshold;

second sidelink triggering event: the SL Plink measurement is below a second threshold and the SL Slink measurement is above a third threshold;

third sidelink triggering event: the SL Slink measurement is below a fourth threshold;

fourth sidelink triggering event: the sidelink measurement values on other sidelink frequency points supported by the measurement object UE are higher than a fifth threshold value;

fifth sidelink trigger event: the sidelink measurement values on other sidelink frequency points supported by the measurement object UE are higher than the SL Plink first offset; that is, there is a first offset for sidelink measurements at other sidelink bins higher than the SL Plink measurements.

Sixth sidelink trigger event: the sidelink measured values on other sidelink frequency points supported by the measurement object UE are higher than the SL Slink second offset; i.e., there are sidelink measurements at other sidelink frequency points that are higher than the SL Slink measurements by a second offset.

The seventh sidelink triggering event: the serving sidelink link measurement value is below a sixth threshold value.

It should be noted that the above trigger events are only examples, and other trigger events may be set as needed.

The measured value of each triggering event may be at least one of: RSRP of sidelink discovery channel, RSRQ of sidelink discovery channel, RSRP of sidelink communication control channel, RSRQ of sidelink communication control channel, RSRP of sidelink communication data channel, RSRQ of sidelink synchronization channel, sidelink received signal strength indication. The indication can be performed by measuring the trigger measurement quantity information in the reporting configuration information.

The correlation threshold (including the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold, and the sixth threshold) and the correlation offset (including the first offset and the second offset) in each trigger event may be configured in the measurement reporting configuration information (the correlation threshold information of the trigger event triggered by reporting and the correlation offset information of the trigger event triggered by reporting, which are carried in the measurement reporting configuration information).

For example, each trigger event may correspond to an identity.

In an optional embodiment, before the receiving, by the first UE, sidelink measurement configuration information, the method further includes:

the first UE sends the supported sidelink frequency point information to the second UE; or

The first UE sends the supported sidelink frequency point information to the eNB;

the sidelink frequency point information comprises at least one of the following: frequency point bandwidth, sidelink resource pool information and sidelink synchronization information.

In an optional embodiment, the first UE performing the sidelink measurements comprises at least one of:

In an optional embodiment, before the first UE performs the measurement of the sidelink discovery signal, the method includes:

the side link access layer of the first UE triggers a non-access layer/high layer to send side link discovery request information on the corresponding side link carrier frequency and receives side link discovery response information sent on the corresponding side link carrier frequency;

or, the first UE receives the sidelink discovery information that the sidelink access layer of the second UE triggers the non-access layer/high layer to send on the corresponding sidelink carrier frequency.

In an optional embodiment, before or after the first UE performs the measurement of the sidelink discovery signal, the method includes:

the first UE receives a sidelink communication resource which is sent by a second UE and corresponds to a sidelink discovery resource, wherein the sidelink discovery resource and the sidelink communication resource can be on different sidelink carrier frequencies; or

The first UE receives a sidelink communication resource configured by a base station and corresponding to a sidelink discovery resource, wherein the sidelink discovery resource and the sidelink communication resource can be on different sidelink carrier frequencies.

In an optional embodiment, before the first UE performs the measurement of the sidelink synchronization signal, the method includes:

the first UE receives a synchronization resource and/or a synchronization sequence which are sent by a second UE or a base station and used for measuring the side link carrier frequency;

or the first UE receives sidelink carrier aggregation resource configuration information sent by a second user equipment or a base station, where the sidelink carrier aggregation resource configuration information includes at least one of: the method comprises the steps of side link synchronization signal sending indication, synchronization signal resource deviation, synchronization sequence identification, synchronization signal sending duration and synchronization signal sending period.

In an optional embodiment, before the first UE performs the measurement of the sidelink communications, the method includes:

the first UE receives sidelink control information which is sent by a second UE and used for sidelink carrier frequency measurement, and the sidelink control information carries a node pair identifier of the first UE and the second UE and/or a measurement identifier special for the sidelink measurement; or,

the first UE receives side link control information which is sent by a second UE through dedicated resources and is used for side link carrier frequency measurement; or,

and the first UE receives the side link control information and data which are sent by the second UE and used for side link carrier frequency measurement, and carries a media access control unit indication to be used for side link measurement.

In an optional embodiment, the first UE performs sidelink measurements, including at least one of:

Wherein performing sidelink discovery comprises: and the first UE receives the sidelink discovery advertisement information sent by the second UE on the sidelink frequency point, or the first UE sends the sidelink discovery request information and receives the sidelink discovery response information sent by the second UE.

In an optional embodiment, after the first UE performs sidelink measurement, the method further includes:

the first UE sends a sidelink measurement result report to the second UE; or

The first UE sends a sidelink measurement result report to the eNB; or

The first UE sends the side link update information to the second UE.

For example, the sidelink measurement report includes at least one of:

the measurement identification information, the UE identification of the measurement object, the sidelink link index, the frequency point where the sidelink link is located, the measurement result information of the sidelink link, the measurement result information of other sidelink frequency points supported by the UE of the measurement object, and the measurement result is simplified.

Wherein, the measurement result information of the sidelink link is at least one of the following: SL Plink measurement result information, sidelink link measurement result information, and SL Slink measurement result information.

The measurement result information includes at least one of: RSRP measurement values of sidelink discovery channels, RSRQ measurement values of sidelink discovery channels, RSRP measurement values of sidelink communication data channels, RSRQ measurement values of sidelink communication data channels, RSRP measurement values of sidelink communication control channels, RSRQ measurement values of sidelink communication control channels, RSRP measurement values of sidelink synchronization channels, RSRQ measurement values of sidelink synchronization channels, sidelink received signal strength indications.

The simplified measurement results include: sidelink carrier frequency information and indicating information corresponding to the sidelink carrier frequency; the indication information corresponding to the sidelink carrier frequency is used for indicating that a sidelink link on the corresponding sidelink carrier frequency is added/released.

In an optional embodiment, after the first UE sends the sidelink measurement result report to the second UE, the method further includes:

and the first UE receives the sidelink update information sent by the second UE.

In an optional embodiment, after the first UE sends the sidelink measurement result report to the eNB, the method further includes:

the method comprises the steps that a first UE receives sidelink updating information sent by an eNB;

the first UE sends the sidelink update information to the second UE.

In an optional embodiment, after the UE sends the sidelink measurement result report to the eNB, the method further includes:

and the eNB sends the side link updating information to the first UE and the second UE.

In an optional embodiment, the sidelink link addition/modification information or SL Slink addition/modification information includes at least one of: the first UE identification information, the second UE identification information, the frequency point where the SL Slink or sidelink link is located, the SL Slink or sidelink link index, the SL Slink or sidelink link synchronization information, and the SL Slink or sidelink link resource pool information.

In an optional embodiment, the sidelink link release information or SL Slink release information includes: the first UE identification information, the second UE identification information, the index of the released sidelink link or SL Slink, the frequency point where the sidelink link or SLSLSLLINK is located, and the release reason.

In an optional embodiment, the SL Plink replacement information includes at least one of: the method comprises the following steps of first UE identification information, second UE identification information, a frequency point where a target SL Plink is located, target SL Plink synchronization information and target SL Plink resource pool information.

In an optional embodiment, after the first UE receives sidelink link addition/modification information or SL Slink addition/modification information sent by the second UE, the method further includes:

the first UE updates sidelink carrier aggregation information, and sends sidelink link addition/modification confirmation information or SL Slink addition/modification confirmation information to the second UE; or

And the first UE updates the sidelink carrier aggregation information, and the first UE and the second UE establish the direct communication connection of the sidelink on the frequency point where the added sidelink link or SLSLSLSLLink is located.

In an optional embodiment, after the first UE receives the SL Plink replacement information sent by the second UE, the method further includes:

the first UE releases the SL Plink and all SL slinks;

and the first UE and the second UE establish a sidelink direct communication connection or a new SL Plink on the frequency point where the replaced target SL Plink is located.

At least one embodiment of the present invention provides a communication control method, including:

the first user equipment sends the side link measurement configuration information to the second user equipment;

the first user equipment receives a side chain measurement result report sent by the second user equipment; or receiving the side link updating information sent by the second user equipment.

In an optional embodiment, after the first user equipment receives the sidelink measurement result report sent by the second user equipment, the method further includes:

For the specific contents of the sidelink measurement configuration information and the sidelink update information, please refer to the previous embodiment.

At least one embodiment of the present invention provides a communication control method, as shown in fig. 4, including:

step S401, the first UE receives sidelink activation status indication information, where the sidelink activation status indication information is used to indicate an activation or deactivation status of a sidelink link of a sidelink carrier aggregation UE.

Step S402, the first UE activates or deactivates the sidelink.

Wherein the first UE activating or deactivating a sidelink link comprises: and the first UE activates or deactivates the sidelink according to the sidelink activation state indication information.

In an optional embodiment, the sidelink link is a SL Slink or peer sidelink link.

In an optional embodiment, the receiving, by the first UE, sidelink activation status indication information further includes:

the first UE receives sidelink activation state indication information sent by the second UE; or

And the first UE receives sidelink activation state indication information sent by the base station.

In an optional embodiment, the receiving, by the first UE, sidelink activation status indication information sent by the second UE includes:

the first UE receives sidelink activation state indication information sent by the second UE through the sidelink control signaling; wherein, the sidelink activation status indication information includes:

an active sidelink list/index;

or, a deactivated sidelink link list/index;

or, an activated sidelink list/index and a deactivated sidelink list/index;

or a bit map indicating the activation/deactivation status of each sidelink.

The list/index of the sidelink link may be a SL link list/index or a sidelink link list/index.

The bit mapping table indicating the activation/deactivation state of each sidelink link may be a bit mapping table indicating the activation/deactivation state of each slsllink, or a bit mapping table indicating the activation/deactivation state of each sidelink link.

In an optional embodiment, the receiving, by the first UE, sidelink activation status indication information sent by the second UE, further includes:

a first UE receives sidelink activation status indication information sent by a second UE through a sidelink transmission channel (such as a sidelink shared data channel); wherein, the sidelink activation state indication information is carried by the sidelink activation/deactivation MAC control unit; in an embodiment, the sidelink activation/deactivation MAC control unit includes a plurality of bits, and an activation/deactivation status of a sidelink between the first UE and the second UE is indicated by one bit.

In an optional embodiment, before the first UE receives sidelink activation status indication information sent by the second UE, the method further includes:

the second UE sends the sidelink activation state indication information according to the sidelink auxiliary information; wherein the side-link assistance information comprises at least one of:

the method comprises the steps of data volume to be transmitted, data rate requirement, time delay requirement, the load condition of currently activated sidelink link resources, power saving requirement and electric quantity indication.

In an optional embodiment, the sidelink activation status indication information sent by the base station includes an activation/deactivation status of sidelink between the first UE and one or more target UEs.

The sidelink activation state indication information sent by the base station and received by the first UE is carried by a sidelink activation/deactivation MAC control unit of a downlink transmission channel.

The side link activation status indication information comprises one or more status indication fields, each status indication field comprising:

In an optional embodiment, after the first UE receives sidelink activation status indication information sent by the base station, the method further includes:

and the first UE sends sidelink activation state indication information to the target UE.

The first UE sends sidelink activation state indication information to the target UE, and the method comprises the following steps:

the first UE sends sidelink activation state indication information to the target UE through the sidelink control signaling, and the sidelink activation/deactivation state between the first UE and the target UE is carried by the sidelink activation state indication information. Wherein, the sidelink activation status indication information includes:

an active sidelink list/index;

or, a deactivated sidelink link list/index;

or, an activated sidelink list/index and a deactivated sidelink list/index;

or a bit map indicating the activation/deactivation status of each sidelink.

In an optional embodiment, the sending, by the first UE, sidelink activation status indication information to the target UE further includes:

the first UE sends the sidelink activation status indication information to the target UE through a sidelink transmission channel (such as a sidelink shared data channel). Wherein, the sidelink activation state indication information is carried by the sidelink activation/deactivation MAC control unit; in an embodiment, the sidelink activation/deactivation MAC control unit includes a plurality of bits, and the activation/deactivation state of each sidelink between the first UE and the target UE is indicated by one bit in the sidelink activation/deactivation MAC control unit.

In an optional embodiment, before the first UE receives sidelink activation status indication information sent by the base station, the method further includes:

the first UE sends sidelink assistance information to the eNB; wherein the sidelink assistance information includes at least one of: the method comprises the steps of data volume to be transmitted, data rate requirement, time delay requirement, the load condition of currently activated sidelink link resources, power saving requirement and electric quantity indication.

In an optional embodiment, after the first UE receives the sidelink activation status indication information, the method includes:

the first UE maintains a deactivation timer for each activated sidelink link;

if no data is transmitted or received on the sidelink link within the timing time of a deactivation timer, deactivating the sidelink link after the timing time of the deactivation timer is reached;

if data is transmitted or received on the sidelink within the timing time of a deactivation timer, starting/restarting the deactivation timer;

in an optional embodiment, the timing of the deactivation timer is obtained by the first UE from pre-configuration information (e.g. from system pre-configuration information), or from side-link carrier configuration information sent by the second UE, or from RRC-specific signaling sent by the base station containing the timing configuration of the deactivation timer.

In an alternative embodiment, the timing time of the deactivation timer is UE specific or UE pair specific, where two UEs in a sidelink link are called a UE pair, i.e. the timing time of the deactivation timer of the same sidelink link of two UEs of the same sidelink link is the same.

In an optional embodiment, the activation/deactivation status of the sidelink link:

under the activation state of the sidelink link, performing layer 1 measurement and sidelink link quality measurement on the sidelink link, and performing data transmission on the sidelink link;

in the deactivated state of the sidelink link, the UE may perform sidelink link quality measurement on the sidelink link.

Wherein the layer 1 measurements include at least one of: channel quality indication, precoding matrix index, rank indication, precoding type indication, CSI-RS resource indication.

sidelink link quality measurements include at least one of: RSRP of sidelink discovery channel, RSRQ of sidelink discovery channel, RSRP of sidelink communication control channel, RSRQ of sidelink communication control channel, RSRP of sidelink communication data channel, RSRQ of sidelink synchronization channel, sidelink received signal strength indication.

the method comprises the steps that a first UE sends sidelink activation state indication information to a second UE, wherein the sidelink activation state indication information is used for indicating the activation or deactivation state of a sidelink carrier aggregation user equipment;

the first UE activates or deactivates a sidelink link.

In an optional embodiment, before the first UE sends the sidelink activation status indication information to the second UE, the method further includes:

the first UE receives side link auxiliary information sent by a second UE;

the side-link assistance information comprises at least one of:

the method comprises the steps of data volume to be transmitted, data rate requirement, time delay requirement, load condition of currently activated side link resources, power saving requirement and electric quantity indication.

For the rest of the details, reference is made to the previous embodiment, which is not repeated herein.

Several methods for activating/deactivating the sidelink between the sidelink carrier aggregation communication UE pair are given in the following embodiments one to four.

Example one

The UE1 and the UE2 configure sidelink carrier aggregation, and add 5 SL slinks through SL Plink, where each SL Slink has a corresponding link index SlinkIndex i. SL Plink is always active and SL Slink is initially inactive. The UE1, UE2 may be in E-UTRAN coverage or out of E-UTRAN coverage. The UE1 autonomously initiates the activation/deactivation of the SL Slink to the peer UE (i.e., UE2) in a user plane manner. For example, the activation/deactivation status of the SL Slink is indicated by an activation/deactivation MAC control element (activation/deactivation MAC CE) of the sidelink shared Channel (SL-SCH) of the SL Plink. An activation/deactivation MAC CE format is shown in fig. 5, and includes 7 bits from S1 to S7, and a reserved bit R, where Si (i ═ 1 to 7) indicates an activated/deactivated state of an SL Slink corresponding to the SlinkIndexi, and if a SlinkIndexi is not configured with a corresponding SL Slink, the corresponding Si is ignored. In one embodiment, setting Si to 1 indicates activating the SL Slink corresponding to the SlinkIndex i, and setting Si to 0 indicates deactivating the SL Slink corresponding to the SlinkIndex i. Of course, the values here are merely examples. Other values may also be used to indicate the activation/deactivation status of each SL Slink.

Further, optionally, the MAC entity of the UE maintains a deactivation timer for each SL Slink. When data is transmitted or received on the SL Slink, starting/restarting a corresponding deactivation timer; if the UE does not transceive data on the SL Slink within the deactivation timer timing time, the SL Slink will be deactivated. The timing time of the deactivation timer can be obtained from pre-configuration information by the UE, or obtained from sidelink carrier configuration information sent by the opposite UE, or obtained from RRC dedicated signaling containing the timing time configuration of the deactivation timer sent by the eNB. The timing time of the deactivation timer is configured for UE specific (UE-specific) or UE pair specific (UE-pair-specific). The timing time of the deactivation timer is the number of subframes with side link resources appearing on the corresponding side link. The time of the deactivation timer is decreased or increased by a subframe unit having a sidelink resource. That is, taking decremental as an example, after the deactivation timer starts, after a subframe with a sidelink resource appears on a corresponding sidelink, the deactivation timer is decremented by 1, and if a subframe without a sidelink resource appears, the value of the deactivation timer is not changed until the deactivation timer is expired. The deactivation timer time is decremented in units of subframes with sidelink resources, since there is not necessarily a sidelink resource on every subframe. For example, the deactivation timer has a timing of 16, and the deactivation timer expires assuming that no sidelink data transmission/reception occurs on 16 subframes with sidelink resources (the 16 subframes are not necessarily consecutive 16 uplink subframes) on the corresponding sidelink carrier frequency link.

It should be noted that the MAC entity of the UE maintains a deactivation timer for each SL Slink, which may be combined with any other SL Slink activation/deactivation method, and the following examples are not specifically described.

Under the activated state of the SL Slink, the UE may perform layer 1 measurement, sidelink link quality measurement, and data transmission on the SL Slink link on the SL Slink; under the state of SL Slink deactivation, the UE can measure the sidelink link quality of the SL Slink; wherein:

the layer 1 measurements include at least one of: channel quality indication, precoding matrix index, rank indication, precoding type indication, CSI-RS resource indication;

Example two

UE1 and UE2 are configured with sidelink carrier aggregation with 5 SL slinks added via SL Plink. The UE1, UE2 may be in E-UTRAN coverage or out of E-UTRAN coverage. The UE1 or the UE2 initiates activation/deactivation of SLSLSLSLSLSLSLLINK to the opposite UE through sidelink control signaling.

As shown in fig. 6, the present embodiment provides a SL Slink activation/deactivation method, including:

in step 601, the UE1 sends SL Slink activation status indication information to the UE 2.

Wherein the UE1 sends SL Slink activation status indication information to the UE2 through control signaling over SL Plunk. The SL Slink activation state indication information comprises an activated SL Slink list and/or a deactivated SL Slink list, and the activated/deactivated SL Slink list comprises an activated/deactivated SL Slink index value or frequency point information of the SL Slink. Optionally, the activation/deactivation states of all configured SL slinks are indicated through a one-byte bitmap (bitmap), each bit corresponds to the activation/deactivation state of one SL Slink, and the remaining bits are filled with 0.

The UE1 determines to send the sidelink activation status indication information according to the sidelink activation/deactivation triggering factors such as the data volume to be transmitted, the data rate requirement, the delay requirement, the currently activated sidelink link resource load condition, the power saving requirement, the power indication, and the like.

In step 602, after receiving the SL Slink activation status indication information sent by the UE1, the UE2 activates or deactivates the corresponding SL Slink according to the slslsllink activation status indication information. Accordingly, the UE1 activates/deactivates the corresponding SL Slink.

Step 603, optionally, after activating/deactivating the corresponding SL Slink according to the indication information, the UE2 sends slslsllink activation status confirmation information to the UE 1.

EXAMPLE III

UE1 is in RRC connected state with UE2, UE1 and UE2 configure sidelink carrier aggregation, and the activation/deactivation of SL Slink is controlled by eNB. As shown in fig. 7, the method specifically includes:

step 701, the eNB configures SL Slink activation status indication information to the UE 1;

in an optional embodiment, the eNB controls an activation/deactivation state of slslslsllink between the UE1 and a certain target UE (UE2) through a sidelink activation/deactivation MAC control element (sidelink activation/deactivation MAC CE) in a MAC PDU (Protocol Data Unit) of a Downlink Shared Channel (DL-SCH).

In one implementation, the sidelink activation/deactivation MAC CE format is as shown in fig. 8. There may be one or more target communicating UEs for the UE, so the activation/deactivation status of the SL Slink between the UE and each target UE needs to be explicit. The method includes the steps that DestinationIndex i (i is 1-N) represents an identification index of a target UE, DestinationIndex i occupies 4 bits, Si (i is 1-7) represents the activation/deactivation state of a SL Slink between the UE corresponding to the SlinkIndex i and the target UE indicated by the DestinationIndex i in 8 bits S1-S7 and reserved bits R immediately after the DestinationIndex i, and if the SlinkIndex i is not configured with the corresponding SL Slink, the corresponding Si is ignored. Setting Si to 1 indicates that the SL Slink corresponding to the SlinkIndex i is activated, and setting Si to 0 indicates that the SL Slink corresponding to the SlinkIndex i is deactivated. The difference between N being even and odd is also shown in fig. 8. When N is odd, DestinationIndex N has 5 reserved bits after S1-S7. It should be noted that the sidelinktion/deactivation MAC CE format is only an example, and other formats may be used to carry the activation/deactivation states of sidelink of the UE and the target UE as needed.

In an implementation, before the eNB configures the SL Slink activation status indication information to the UE1, the UE1 sends sidelink assistance information to the eNB; wherein the sidelink assistance information includes at least one of: the method comprises the steps of data volume to be transmitted, data rate requirement, time delay requirement, the load condition of currently activated sidelink link resources, power saving requirement and electric quantity indication.

Step 702, after receiving the slsllink activation status indication information of the UE1 and the target UE (UE2 in this embodiment) configured by the eNB, the UE1 initiates SL Slink activation status indication information to the target UE (UE 2); specifically, there are two ways, namely, a user plane (refer to the first embodiment) and a control plane (refer to the second embodiment), which are not described herein again.

In step 703, the UE1 and the UE2 activate/deactivate the slslsllinks according to the SL Slink activation status indication information.

In step 704, after the UE2 completes the corresponding SL Slink activation/deactivation, it sends SL Slink activation status confirmation information to the UE 1.

Step 705: and after the UE1 and the UE2 complete the activation/deactivation of the SL Slink, the SL Slink activation state confirmation information is sent to the eNB. Only the UE1 is shown in fig. 7 sending SL Slink activation status confirmation information to the eNB. It should be noted that, in other embodiments, only one of the UE1 or UE2 may send the SL Slink activation status confirmation information to the eNB.

In another embodiment, steps 704 and 705 can be omitted.

Furthermore, it should be noted that in an optional embodiment of the present invention, in step 701, the eNB may configure SL Slink activation status indication information for both the source UE and the target UE pair, i.e., UE1 and UE2 (the configuration method for UE2 is the same as that for UE1, as described in step 701), and UE1 and UE2 perform SL Slink activation/deactivation according to the configuration of the eNB, and notify the eNB after the activation/deactivation is completed. As such, UE1 does not need to initiate a SL Slink activation/deactivation indication to UE2 on the sidelink link.

Example four

The present embodiment describes a method for activating/deactivating peer-to-peer sidelink links with sidelink carrier aggregation between UE1, UE2 communication pairs.

The method comprises the following steps: the eNB configures activation/deactivation of sidelink links for the UE1 and the UE 2; UE1, UE2 are within eNB coverage. For example, the eNB controls the activation/deactivation state of the sidelink link between a certain target UE (UE2 in this embodiment) of the UE1 through a sidelink activation/deactivation MAC control element sidelink activation/deactivation MAC CE in a MAC PDU of a downlink shared channel (DL-SCH). The sidelink activation/deactivation MAC CE format is similar to that in fig. 8, Si represents the activation/deactivation status of the sidelink link corresponding to the sidelink index i, and if the sidelink link corresponding to the sidelink index i is not configured, Si is ignored. Si is set to be 1 to activate the sidelink link corresponding to the Siedelink index i, and Si is 0 to indicate that the sidelink link corresponding to the Siedelink index i is deactivated.

The second method comprises the following steps: the activation/deactivation of the sidelink link is carried out autonomously between the communication pairs of the UE1 and the UE 2; at least one or all sidelink links are in an activated state initially, and the activated/deactivated states of all sidelink links can be configured through any activated sidelink link. Specifically, as described in the first embodiment, the activation/deactivation state of the sidelink link is indicated by an activation/deactivation MAC control element (activation/deactivation MAC CE) of the sidelink shared channel SL-SCH. The activation/deactivation MAC CE format is similar to fig. 5, where Si indicates the activation/deactivation status of the sidelink link corresponding to the sidelink index i, and if the sidelink index i is not configured with the corresponding sidelink link, Si is ignored. Si is set to be 1 to activate the sidelink link corresponding to the Siedelink index i, and Si is 0 to indicate that the sidelink link corresponding to the Siedelink index i is deactivated. Alternatively, as described in embodiment 2, the UE1 or UE2 initiates activation/deactivation of sidelink link to the peer UE through control signaling of any activated sidelink link.

The third method comprises the following steps: the eNB configures activation/deactivation of sidelink links for the UE1, the UE1 initiates activation/deactivation of the sidelink links to the peer UE2, at least one sidelink link is initially in an activated state, and the activation/deactivation states of other sidelink links may be configured through any activated sidelink link.

The method four comprises the following steps: the UE maintains a deactivation timer for each activated sidelink. When data is transmitted or received on the sidelink, starting/restarting a corresponding deactivation timer; if the UE transmits and receives no data on the sidelink within the timing time of the deactivation timer, the sidelink link is deactivated. Wherein, the UE may acquire the timing time of the deactivation timer by: the configuration information is obtained from pre-configuration information, or the configuration information of the sidelink carrier sent by the opposite terminal UE, or the configuration information of the RRC proprietary signaling containing the timing and the time of the deactivation timer sent by the eNB. And the timing time of the deactivation timer is configured for UE specific or UE pair specific. The method may be combined with any one of the methods one to three.

Embodiments five to eight describe the measurement methods of all sidelink links of the communication UE pair configured by the sidelink carrier, and the SL Slink add/modify/release, SL Plink modify/replace procedures, sidelink link add/modify/release procedures.

EXAMPLE five

In this embodiment, UE1 and UE2 have sidelink carrier aggregation capability, and UE1 and UE2 have established SL Plink. The UE1 and the UE2 interact with the SL measurement configuration and perform measurement, and perform SL Slink addition/modification/release/SL Plink replacement according to the SL measurement result. If the UE1 is a sending UE and the UE2 is a receiving UE, the SL measurement configuration is initiated by the UE1, and if the UE1 and the UE2 have data transmission and reception with each other, the SL measurement configuration may be initiated by any one of the UEs. As shown in fig. 9, the method specifically includes:

step 901: the UE1 sends sidelink measurement configuration information to the UE 2;

the sidelink measurement configuration information includes at least one of: measurement quantity information, measurement object information, measurement reporting configuration information, measurement identification and measurement gap configuration information;

the measurement object information includes at least one of: the UE identity (i.e. UE1 identity) of the measurement object, part or all of aggregated sidelink carrier frequency information between the UE2, SL frequency point and/or V2X SL frequency point information supported by the measurement object UE1, synchronization resource and/or synchronization sequence corresponding to the sidelink carrier frequency, dedicated resource for sidelink control information, and measurement identity dedicated to sidelink measurement; further, the measurement object UE is identified as any one of: ProSe UE ID, layer 2UE ID, cell radio network temporary identifier C-RNTI.

The measurement reporting configuration information includes at least one of: reporting trigger type indication information, reporting trigger event identification information, reporting trigger event related threshold value information, reporting trigger event related offset information, hysteresis parameter information, duration time required for triggering, reporting target information, triggering measurement quantity information, reporting measurement quantity information, maximum number of reported sidelink links, reporting interval, reporting number and reporting simplified measurement results. Wherein:

reporting trigger type indication information including event trigger and/or periodic trigger;

the reporting purpose information is used for indicating the UE to report the sidelink measurement related information;

the measurement quantity information, the trigger measurement quantity information and the report measurement quantity information comprise at least one of the following: RSRP of sidelink discovery channel, RSRQ of sidelink discovery channel, RSRP of sidelink communication control channel, RSRQ of sidelink communication control channel, RSRP of sidelink communication data channel, RSRQ of sidelink synchronization channel, sidelink received signal strength indication.

The triggering event includes at least one of:

second sidelink triggering event: the SL Plink measurement is below a second threshold and any SL Slink is above a third threshold;

fifth sidelink trigger event: the sidelink measurement values on other sidelink frequency points supported by the measurement object UE are higher than the SL Plink first offset;

sixth sidelink trigger event: the sidelink measured values on other sidelink frequency points supported by the UE to be measured are higher than the SL Slink second offset.

The SL Plink/SL Slink/sidelink measured value is a measured value of a measurement quantity configured on the sidelink link.

Step 902: the UE2 performs sidelink measurement according to the sidelink measurement configuration information sent by the UE1 and generates a measurement result report;

the UE2 measures sidelink quality of all serving sidelinks (SL Plink & SL plinks) with the UE1, and measures sidelink quality on other (frequency point where non-serving sidelinks link is located) SL frequency points and/or V2X SL frequency points supported by the UE 1.

The UE2 performing sidelink measurements includes at least one of: measuring side link discovery signals, measuring side link synchronous signals, measuring side link communication and measuring signals specially used for side link carrier frequency measurement.

If the UE2 performs or is configured to perform measurement on the sidelink discovery signal, the sidelink access layer of the UE2 triggers the non-access layer/upper layer to send the sidelink discovery request information on the corresponding sidelink carrier frequency and receive the sidelink discovery response information sent on the corresponding sidelink carrier frequency, and measures the sidelink discovery response information; or the sidelink access layer of the UE1 triggers the non-access stratum/upper layer to send the sidelink discovery information on the corresponding sidelink carrier frequency, and the UE2 receives the sidelink discovery information and measures the same.

If the sidelink discovery and the sidelink communication use different carriers, a carrier frequency corresponding to the sidelink communication needs to be negotiated in a sidelink discovery stage or an eNB gives a mapping relation corresponding to the sidelink discovery and the sidelink communication, specifically, a carrier frequency corresponding to the sidelink communication is negotiated between a UE1 and a UE2, and the UE2 receives a sidelink communication resource corresponding to the sidelink discovery resource sent by the UE 1; or the eNB configures sidelink communication resources corresponding to the sidelink discovery resources to the UE1 and/or the UE 2.

If the UE2 performs or is configured to perform sidelink synchronization signal measurement, synchronization resources and/or synchronization sequences for sidelink carrier frequency measurement of the UE1 and the UE2 are included in the measurement configuration; or the eNB configures the UE1 and the UE2 with synchronization resources and/or synchronization sequences for side-link carrier frequency measurement.

If the UE2 performs or is configured to perform measurements for sidelink communications, including:

side link control information used for side link carrier frequency measurement is sent between the UE1 and the UE2, and the side link control information carries a specific identifier used for identifying and measuring between UE pairs; or,

sending the sidelink control information by using a pre-configured dedicated resource dedicated to measurement and mutual identification between the UE pairs;

or, the UE sends the side link control information and data for side link carrier frequency measurement between the UE pairs, and carries the MAC control unit indication for side link measurement.

The specific identifier carried in the sidelink control information may be negotiated between UE pairs or configured by the eNB for the UE pairs;

if the UE2 performs or is configured to perform measurement signal measurements on dedicated sidelink carrier frequency measurements, the UE2 receives the dedicated measurement signals and measures.

Step 903: when a sidelink measurement reporting trigger condition configured by the UE1 is met, the UE2 sends a measurement result report to the UE 1;

specifically, the measurement result report includes at least one of: measurement identification information, a measurement object UE (UE 1 in this embodiment) identification, SL Plink measurement result information, an SL Slink index, a frequency point where the SL Slink is located, SL Slink measurement result information, and SL frequency point of a frequency point where a non-serving sidelink link supported by the measurement object UE is located and/or sidelink measurement result information on a V2X SL frequency point; wherein, the SL Plink/SL Slink/sidelink measurement result information comprises at least one of the following information: an RSRP value of a sidelink discovery channel, an RSRQ value of a sidelink discovery channel, an RSRP value of a sidelink communication control channel, an RSRQ value of a sidelink communication control channel, an RSRP value of a sidelink communication data channel, an RSRQ value of a sidelink communication data channel, an RSRP value of a sidelink synchronization channel, an RSRQ value of a sidelink synchronization channel, a sidelink received signal strength indication.

Step 904: the UE1 initiates a sidelink update procedure according to the measurement result report reported by the UE2, where the sidelink update procedure may be a SL Slink add/modify/release or SL Plink replace procedure. Slsllink addition/modification/release is taken as an example in this embodiment. In this embodiment, UE1 sends SL Slink add/modify/release information to UE 2.

Wherein the SL Slink addition/modification information comprises at least one of: source UE (UE 1 in this embodiment) identification information, a frequency point where the SL Slink is located, an index of the SL Slink, SL Slink synchronization information, and SL Slink resource pool information.

The SL Slink release information includes: source UE (UE 1 in this embodiment) identification information, an index of released SL Slink, and a release reason.

Step 905: after receiving the SL Slink add/modify/release information, the UE2 updates sidelink carrier aggregation configuration information, performs corresponding SL Slink add/modify/release, and feeds back SL Slink add/modify acknowledgement information to the UE1 after completing the corresponding SL Slink add/modify.

If the information is SL Slink release, the UE2 releases the relevant information and configuration of the SL Slink after receiving the SL Slink release information, and no feedback exists. For SL Slink additions, the UE1 may initiate a sidelink connection establishment procedure to the UE2 on the frequency point where the added SL Slink is located.

Optionally, if the UE1 sends the sidelink measurement configuration information to the UE2 in step 901 to indicate that the simplified measurement result is reported, in step 903, when a sidelink measurement reporting trigger condition configured by the UE1 is met, the UE2 sends the simplified measurement result to the UE 1.

Wherein the simplified measurement results comprise: sidelink carrier frequency information and indicating information corresponding to the sidelink carrier frequency; the indication information corresponding to the sidelink carrier frequency is used for indicating that a sidelink link on the corresponding sidelink carrier frequency is added/released. That is, when the UE2 meets the reporting/updating trigger event when measuring the sidelink link, the UE2 selects to report the sidelink carrier frequency/link addition (the non-serving sidelink link has better quality, such as the fourth/fifth/sixth sidelink trigger event) or release (a certain serving sidelink link has worse quality, such as the first/second/third sidelink trigger event) information meeting the condition.

EXAMPLE six

UE1, UE2 have sidelink carrier aggregation capability, and UE1 and UE2 have established SL Plink. The UE1 and the UE2 interact with the SL measurement configuration and perform measurement, and perform SL Slink addition/modification/release/SL Plink replacement according to the SL measurement result. If the UE1 is a sending UE and the UE2 is a receiving UE, the SL measurement configuration is initiated by the UE1, and if the UE1 and the UE2 have data transmission and reception with each other, the SL measurement configuration may be initiated by any one of the UEs. As shown in fig. 10, the method specifically includes:

step 1001: the UE1 sends SL measurement configuration information to the UE2, the SL measurement configuration information including at least one of: measuring object information, measuring quantity information, measuring gap configuration information and SL Plink/Slink updating criterion;

the SL Plink/Slink update criterion includes an update trigger event, which is the same as the trigger event described in step 901 in the fifth embodiment and is not described herein again; when the UE2 satisfies any update triggering event, the UE2 may initiate a corresponding SLPlink replacement/SL Slink add/modify/release procedure.

For example, when the UE2 satisfies the first and/or fifth and/or fourth or second sidelink triggering event, the UE2 may initiate the SLPlink replacement procedure; when the UE2 satisfies the third and or sixth and or fourth sidelink triggering events, the UE2 may initiate a SL Slink add/modify/release procedure.

Step 1002: the UE2 executes sidelink measurement according to the sidelink measurement configuration information sent by the UE1 and saves the measurement result; the UE2 measures sidelink quality of all serving SL links (SL Plink & SL plinks) between UE1, and measures sidelink quality on other (frequency point where non-serving sidelink link is located) SL frequency points and/or V2X SL frequency points supported by UE 1; specifically, the measurement of the sidelink discovery signal, the measurement of the sidelink synchronization signal, the measurement of the sidelink communication, and the measurement signal dedicated to the sidelink carrier frequency measurement may be performed, which is the same as step 902 in the fifth embodiment and is not described herein again.

Step 1003: when the SL Plink/Slink update criteria configured by the UE1 are met, the UE2 initiates a corresponding SLPlink/Slink update procedure (SL Slink add/modify/release or SL Plink replace); in this example, for the SL Plink replacement, the UE2 sends SL Plink replacement information to the UE 1;

the SL Plink replacement information includes at least one of: the identification information of the source UE (here, UE2), the frequency point where the target SL Plink is replaced, the synchronization information of the target SL Plink, and the resource pool information of the target SL Plink.

Step 1004: if the SL Plink is replaced, all SLSLSLSLLINks associated with the original SL Plink need to be released, and a new SL Plink is established. Therefore, in this embodiment, after receiving the SL Plink replacement information sent by the UE2, the UE1 releases the current SL Plink and all SL Slinks with the UE 2; at the same time, the UE2 also releases the current SL Plink and all SL Slinks with the UE 1.

Step 1005: and after the current SL Plink and all SL plinks are released by the UE1 and the UE2, establishing sidelink direct communication connection on the new sidelink carrier frequency according to the SL Plink replacement information, namely establishing the SL Plink.

EXAMPLE seven

In this embodiment, UE1 and UE2 have sidelink carrier aggregation capability, and UE1 and UE2 have established SL Plink. The UE1 is in an RRC connected state, the eNB configures sidelink measurement configuration information for the UE1 and the UE2 in a communication pair, and assists to configure the UE1 and the UE2 in a communication pair to perform SL Slink addition/modification/release/SL Plink replacement according to the sidelink measurement result reported by the UE1, where a specific signaling is shown in fig. 11 and includes:

step 1101: the eNB sends sidelink measurement configuration information to the UE 1;

the sidelink measurement configuration information is the same as that described in the fifth step 901 of the embodiment, and is not described again here.

Step 1102: after receiving the sidelink measurement configuration information sent by the eNB, the UE1 performs sidelink measurement according to the sidelink measurement configuration information to generate a measurement result report; specifically, the measurement of the sidelink discovery signal, the measurement of the sidelink synchronization signal, the measurement of the sidelink communication, and the measurement signal dedicated to the sidelink carrier frequency measurement may be performed, which is the same as step 902 in the fifth embodiment and is not described herein again.

Step 1103: when the sidelink measurement reporting trigger condition configured by the eNB is met, the UE1 sends the measurement result report to the eNB;

the content of the measurement result report is the same as that described in step 903 of the fifth embodiment, and is not described herein again.

Step 1104: the eNB configures UE1 to perform processes such as SL Slink addition/modification/release or SL Plink replacement according to the measurement result report reported by the UE1, and sends SL Slink addition/modification/release or SL Plink replacement information to the UE 1;

wherein the SL Slink addition/modification information comprises at least one of: the identification information of the opposite end UE2 of the UE1, the frequency point where the SL Slink is located, the index of the SL Slink, the synchronization information of the SL Slink and the resource pool information of the SL Slink.

Wherein the SL Slink release information comprises: the peer UE2 of UE1 identifies the information, the index of the released SL Slink.

Wherein the SL Plink replacement information includes at least one of: the UE2 at the opposite end of the UE1 identifies information, the frequency point where the target SL Plink is replaced, the synchronization information of the target SL Plink, and the resource pool information of the target SL Plink.

Step 1105: after receiving the SL Slink addition/modification/release or SL Plink replacement information configured by the eNB, the UE1 initiates a SL Slink addition/modification/release or SL Plink replacement procedure to an opposite UE (in this embodiment, UE 2). Specifically, reference may be made to the fifth steps 904-905 or the sixth step 1003-1005 in the embodiment, which will not be described herein again.

Example eight

This embodiment describes sidelink measurement configuration of peer sidelink links with sidelink carrier aggregation capability between UE1 and UE2 communication pairs and peer sidelink link addition/modification/release method. The specific process is shown in fig. 12, and includes:

step 1201: the UE1 sends sidelink measurement configuration information to the UE 2;

wherein the UE1 sends the sidelink measurement configuration information to the UE2 over any activated sidelink link. The sidelink measurement configuration information includes at least one of: measuring object information, measurement reporting configuration information, measurement identification, measurement quantity information and measurement gap configuration information;

the measurement object information includes at least one of: UE identity (i.e. UE1 identity) of the measurement object, some or all aggregated sidelink carrier frequency information with UE2, information of other SL frequency points and/or V2X SL frequency points supported by UE1 of the measurement object, synchronization resources and/or synchronization sequences corresponding to sidelink carrier frequencies, dedicated resources for sidelink control information, and measurement identity dedicated to sidelink measurement; further, the measurement target UE is identified as any one of: ProSe UE ID, ProSe layer 2UE ID, cell radio network temporary identifier C-RNTI.

The measurement reporting configuration information comprises at least one of the following: reporting trigger type indication information, reporting trigger event identification information of trigger, reporting relevant threshold value information of the triggered trigger event, reporting relevant offset information of the triggered trigger event, hysteresis parameter information, trigger required duration, reporting purpose information, triggering measurement quantity information, reporting measurement quantity information, maximum reporting sidelink link number, reporting interval and reporting number.

The triggering event includes at least one of:

first sidelink triggering event: the serving sidelink link measurement value is below a first threshold value;

second sidelink triggering event: the sidelink measurement values of other sidelink frequency points supported by the UE1 are higher than the second threshold value.

Step 1202: the UE2 performs sidelink measurement according to the sidelink measurement configuration information sent by the UE1 and generates a measurement result report;

the UE2 measures sidelink quality of sidelink links aggregated with part or all carriers between the UE1, and measures the sidelink quality on SL frequency points of other links of non-sidelink aggregated carrier frequencies supported by the UE1 and/or the V2X SL frequency points; specifically, the measurement of the sidelink discovery signal, the measurement of the sidelink synchronization signal, the measurement of the sidelink communication, and the measurement signal dedicated to the sidelink carrier frequency measurement may be performed, which is the same as step 902 in the fifth embodiment and is not described herein again.

Step 1203: when the sidelink measurement reporting trigger condition configured by the UE1 is met, the UE2 sends the measurement result report to the UE 1;

specifically, the measurement result report includes at least one of: measurement identification information, a measurement object UE identification, a sidelink link index, sidelink link measurement result information, and sidelink measurement result information on other SL frequency points of a link of non-sidelink aggregated carrier frequency supported by the measurement object UE and/or on V2X SL frequency points; wherein the sidelink measurement result information comprises at least one of the following: an RSRP value of a sidelink discovery channel, an RSRQ value of a sidelink discovery channel, an RSRP value of a sidelink communication control channel, an RSRQ value of a sidelink communication control channel, an RSRP value of a sidelink communication data channel, an RSRQ value of a sidelink communication data channel, an RSRP value of a sidelink synchronization channel, an RSRQ value of a sidelink synchronization channel, a sidelink received signal strength indication.

Step 1204: the UE1 performs an add/modify/release procedure of the sidelink link according to the measurement result report; the UE1 sends sidelink link add/modify/release information to the UE 2;

in addition, the UE1 updates sidelink carrier aggregation configuration information, performs corresponding sidelink link addition/modification/release, and may be performed before or after sending sidelink link addition/modification/release information to the UE 2.

The sidelink link addition/modification information includes at least one of: identification information of a source UE (in this embodiment, UE1), a frequency point where a sidelink link is located, a sidelink link index, sidelink link synchronization information, and sidelink link resource pool information. The sidelink link release information includes: the source UE (in this embodiment, UE1) identifies information and a sidelink index released.

Step 1205: after receiving the sidelink link addition/modification/release information, the UE2 updates the sidelink carrier aggregation configuration information, performs corresponding sidelink link addition/modification/release, and feeds back addition/modification confirmation information to the UE1 after completing the corresponding sidelink link addition/modification. Optionally, for sidelink link addition, the UE1 may initiate a sidelink connection establishment procedure to the UE2 on a frequency point where the added sidelink link is located.

It should be noted that the measurement configuration of the SL Slink and the SL Slink adding/modifying/releasing method in the fifth to seventh embodiments may be applied to the sidelink link. For example, the eNB may send measurement configuration information to the UE1, the UE1 performs measurement, and after reporting a measurement result report, performs a sidelink link addition/modification/release procedure according to sidelink link addition/modification/release information sent by the eNB.

An embodiment of the present invention provides a communication control apparatus, including a memory and a processor, where the memory stores a program, and the program realizes the communication control method when being read and executed by the processor. The communication control methods may be the communication control methods described in the above embodiments, respectively.

An embodiment of the present invention provides a communication control apparatus, including a memory and a processor, where the memory stores a program, and the program, when read and executed by the processor, performs the following operations:

receiving sidelink measurement configuration information, wherein the sidelink measurement configuration information comprises measurement configuration information of a sidelink link of user equipment supporting sidelink carrier aggregation;

side-chain measurements are performed.

In an optional embodiment, the receiving side-chain measurement configuration information includes:

receiving the sidelink measurement configuration information sent by the second user equipment;

or, receiving the sidelink measurement configuration information sent by the base station.

In an alternative embodiment, the program when read and executed by the processor further performs the following:

before receiving the side link measurement configuration information, sending the supported side link frequency point information to second user equipment; or, the supported sidelink frequency point information is sent to the base station.

In an optional embodiment, the performing the sidelink measurement comprises at least one of:

for a sidelink or a serving sidelink that has been configured for sidelink carrier aggregation, measuring a corresponding sidelink communication channel;

and performing side link discovery on the side link frequency points which are not configured to the side link carrier aggregation or other side link frequency points except the frequency point where the service side link is located, and measuring a side link discovery channel.

after the side-chain measurement has been performed,

sending a side link measurement result report to the second user equipment;

or, sending the side link measurement result report to the base station;

or sending the side link updating information to the second user equipment.

and after the side link measurement result report is sent to the second user equipment, side link updating information sent by the second user equipment is received.

and after the side link measurement result report is sent to the base station, side link updating information sent by the base station is received, and the side link updating information is sent to the second user equipment.

when the sidelink update information is sidelink link addition/modification information or auxiliary sidelink link addition/modification information, updating sidelink carrier aggregation information after receiving the sidelink update information sent by the second user equipment, and sending sidelink link addition/modification confirmation information or auxiliary sidelink link addition/modification confirmation information to the second user equipment; or, updating the sidelink carrier aggregation information, and establishing sidelink direct communication connection with the second user equipment on the frequency point where the added sidelink link or the auxiliary sidelink link is located.

when the side link updating information is main side link replacing information, after the side link updating information is received, releasing the main side link and all auxiliary side link; and establishing a side link direct communication connection or a new main side link with the second user equipment at the frequency point where the replaced target main side link is located.

An embodiment of the present invention provides a communication control apparatus, including a memory and a processor, where the memory stores a program that, when read and executed by the processor, performs the following operations:

sending the side link measurement configuration information to the second user equipment;

receiving a sidelink measurement result report sent by the second user equipment; or receiving the side link updating information sent by the second user equipment.

In an alternative embodiment, the program when read and executed by the processor further performs the following: and after receiving a side link measurement result report sent by the second user equipment, sending side link update information to the second user equipment.

receiving side link activation state indication information, wherein the side link activation state indication information is used for indicating the activation or deactivation state of a side link of side link carrier aggregation user equipment;

the sidelink link is activated or deactivated.

In an optional embodiment, the receiving the sidelink activation status indication information includes:

receiving the sidelink activation state indication information sent by the second user equipment;

or receiving the sidelink activation state indication information sent by the base station.

In an optional embodiment, the sidelink activation status indication information sent by the base station includes activation/deactivation statuses of sidelink links between the first user equipment and one or more target user equipments.

after receiving the sidelink activation status indication information sent by the base station, the method further comprises the following steps:

and sending side link activation state indication information to the target user equipment, wherein the side link activation/deactivation state of the side link between the first user equipment and the target user equipment is carried.

In an optional embodiment, the sidelink activation status indication information sent by the base station is carried by a sidelink activation/deactivation media access control unit of a downlink transmission channel.

maintaining a deactivation timer for each activated sidelink;

sending side link activation state indication information to second user equipment, wherein the side link activation state indication information is used for indicating the activation or deactivation state of a side link of side link carrier aggregation user equipment;

the sidelink communication link is activated or deactivated.

An embodiment of the present invention provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the above-described communication control method. The communication control methods may be the communication control methods described in the above embodiments, respectively.

The computer-readable storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A communication control method, comprising:

the first user equipment performs sidelink measurements.

2. The communication control method of claim 1, wherein the first user equipment receiving sidelink measurement configuration information comprises:

3. The communication control method of claim 1, wherein the sidelink measurement configuration information comprises at least one of:

4. The communication control method according to claim 3,

the measurement object information includes at least one of: the measurement target user equipment identifier, the aggregation side link carrier frequency information between the measurement target user equipment identifier and the measurement target user equipment, other side link carrier frequency information supported by the measurement target user equipment, synchronous resources and/or synchronous sequences corresponding to the side link carrier frequency, special resources for side link control information, and the measurement identifier special for side link measurement.

5. The communication control method according to claim 3, wherein the measurement reporting configuration information includes at least one of:

6. The communication control method according to claim 5,

the reporting destination information is used for indicating reporting sidelink carrier aggregation measurement result information;

7. The communication control method according to claim 3,

the side link update criteria comprise a trigger event, which is used for indicating that the first user equipment sends side link update information to the second user equipment when any trigger event is met.

8. The communication control method according to claim 5, 6 or 7, wherein the triggering event comprises at least one of:

9. The communication control method of claim 1, wherein before the first user equipment receives the sidelink measurement configuration information, further comprising:

10. The communication control method of claim 1, wherein the first user equipment performing sidelink measurements comprises at least one of:

11. The communication control method of claim 10, wherein prior to the first user equipment performing the measurement of the sidelink discovery signal, further comprising:

the side link access layer of the first user equipment triggers a non-access layer/high layer to send side link discovery request information on the corresponding side link carrier frequency and receive side link discovery response information sent on the corresponding side link carrier frequency; or,

12. The communication control method of claim 10 or 11, wherein the first user equipment further comprises, before or after performing the sidelink discovery signal measurement:

the first user equipment receives a side link communication resource which is sent by second user equipment and corresponds to a side link discovery resource; or

13. The communication control method of claim 10, wherein prior to the first user equipment performing the measurement of the sidelink synchronization signal, comprising:

or the first user equipment receives sidelink carrier aggregation resource configuration information sent by the second user equipment or the base station, where the sidelink carrier aggregation resource configuration information includes at least one of the following: the method comprises the steps of side link synchronization signal sending indication, synchronization signal resource deviation, synchronization sequence identification, synchronization signal sending duration and synchronization signal sending period.

14. The communication control method of claim 10, wherein prior to the first user equipment performing the measurement of sidelink communications, further comprising:

the first user equipment receives sidelink control information which is sent by second user equipment and used for sidelink carrier frequency measurement, and the sidelink control information carries a node pair identifier of the first user equipment and the second user equipment and/or a measurement identifier special for the sidelink measurement;

or,

the first user equipment receives side link control information which is sent by second user equipment through a special resource and is used for side link carrier frequency measurement;

or,

15. The communication control method of claim 1, wherein the first user equipment performing sidelink measurements comprises at least one of:

16. The communication control method of claim 1, wherein after the first user equipment performs the sidelink measurement, further comprising:

17. The communication control method of claim 16, wherein the sidelink measurement report comprises at least one of:

18. The communication control method of claim 17, wherein the simplifying measurement results comprise:

side link carrier frequency information;

19. The communication control method of claim 16, wherein after the first user equipment sends the sidelink measurement report to the second user equipment, further comprising:

20. The communication control method of claim 16, wherein after the first ue sends the sidelink measurement report to the base station, further comprising:

21. The communication control method according to claim 7, 16, 19 or 20,

the side link updating information is side link adding/modifying/releasing information or auxiliary side link adding/modifying/releasing information or main side link replacing information.

22. The communication control method according to claim 21, wherein the sidelink update information is sidelink link addition/modification or secondary sidelink link addition/modification information, including at least one of: the first user equipment identification information, the second user equipment identification information, the frequency point where the auxiliary side link or the side link is located, the auxiliary side link or the side link index, the auxiliary side link or the side link synchronization information, and the auxiliary side link or the side link resource pool information.

23. The communication control method according to claim 21,

the side link update information is side link release information or auxiliary side link release information, and includes at least one of the following: the first user equipment identification information, the second user equipment identification information, the index of the released side link or the auxiliary side link, the frequency point where the side link or the auxiliary side link is located, and the reason for the release.

24. The communication control method of claim 21, wherein the sidelink update information is a primary sidelink link change information including at least one of: the method comprises the steps of first user equipment identification information, second user equipment identification information, a frequency point where a target main and sidelink link is located, target main and sidelink link synchronization information and target main and sidelink link resource pool information.

25. The communication control method according to claim 19, wherein when the sidelink update information is sidelink addition/modification information or secondary sidelink addition/modification information, after the first user equipment receives the sidelink update information sent by the second user equipment, the method further includes:

the first user equipment updates the side link carrier aggregation information and sends side link adding/modifying confirmation information or auxiliary side link adding/modifying confirmation information to the second user equipment;

or,

26. The communication control method according to claim 19 or 20, wherein when the sidelink update information is a primary sidelink link change information, after the first user equipment receives the sidelink update information, further comprising:

27. A communication control apparatus comprising a memory and a processor, the memory storing a program which, when read and executed by the processor, implements the communication control method according to any one of claims 1 to 26.

28. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the communication control method according to any one of claims 1 to 26.

29. A communication control method, comprising:

the first user equipment activates or deactivates the sidelink link.

30. The communication control method of claim 29, wherein the first user equipment receiving the sidelink activation status indication information comprises:

31. The communication control method of claim 30, wherein the indication information of the sidelink activation status sent by the base station includes an activation/deactivation status of a sidelink link between the first user equipment and one or more target user equipments, and after the first user equipment receives the indication information of the sidelink activation status sent by the base station, the method further includes:

the first user equipment sends side link activation state indication information to the target user equipment, and the side link activation/deactivation state of the side link between the first user equipment and the target user equipment is carried.

32. The communication control method of claim 30, wherein the sidelink activation status indication information sent by the base station and received by the first user equipment is carried by a sidelink activation/deactivation media access control unit of a downlink transmission channel.

33. The communication control method of claim 29, wherein the sidelink activation status indication information comprises one or more status indication fields, each of the status indication fields comprising:

34. The communication control method of claim 30, wherein before the first ue receives the sidelink activation status indication information sent by the base station, the method further comprises:

the side-link assistance information comprises at least one of:

35. The communication control method according to any of claims 29 to 31, wherein the sidelink activation status indication information is carried by sidelink control signaling when the sidelink activation status indication information is transmitted between user equipments; or the side link is carried by a side link activation/deactivation media access control unit in a side link transmission channel.

36. The communication control method of claim 35, wherein when the sidelink activation status indication information is carried by the sidelink control signaling, the sidelink activation status indication information comprises:

an active sidelink list/index;

or, a deactivated sidelink link list/index;

or, an activated sidelink list/index and a deactivated sidelink list/index;

or a bit map indicating the activation/deactivation status of each sidelink.

37. The communication control method of claim 35, wherein when the sidelink activation status indication information is carried by a sidelink activation/deactivation mac control element in the sidelink transport channel, the activation/deactivation status of each sidelink is indicated using one bit of the sidelink activation/deactivation mac control element.

38. The communication control method according to any of claims 29 to 34, characterized in that the method further comprises:

39. The communication control method according to claim 38, wherein the timing time of the deactivation timer is obtained by the first user equipment from pre-configuration information, or obtained from sidelink carrier configuration information sent by the second user equipment, or obtained from radio resource control-specific signaling sent by the base station containing the timing time configuration of the deactivation timer.

40. The communication control method according to claim 38, wherein the timing time of the deactivation timer is specific to a user equipment or specific to a user equipment pair, wherein two user equipments in which the sidelink link exists are referred to as a user equipment pair.

41. The communication control method of claim 38, wherein the time to deactivate the timer is decremented or incremented in units of subframes with sidelink resources.

42. The communication control method according to any of claims 29 to 34, characterized in that the method further comprises:

43. A communication control apparatus comprising a memory and a processor, the memory storing a program which, when read and executed by the processor, implements a communication control method according to any one of claims 29 to 42.

44. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the communication control method according to any one of claims 29 to 42.