WO2013163902A1 - Radio link management method, user equipment and base station - Google Patents

Abstract

A radio link management method, user equipment and a base station. The method comprises: receiving a radio link information set sent by a base station, the radio link information set being used for indicating at least one radio link of a radio link monitor RLM to be executed; according to the radio link information set, executing the RLM on at least one radio link of the RLM to be executed; and when at least one first radio link of at least one radio link of the RLM to be executed generates a radio link failure RLF, triggering a re-establishment procedure of a radio resource control protocol RRC. The radio link management method, the user equipment and the base station in the embodiments of the present invention can effectively maintain a plurality of radio links of the UE and initiate RRC re-establishment when necessary, thereby enabling the quality of service of the UE to be better ensured.

Description

 Wireless link management method, user equipment and base station

 This application claims priority to Chinese Patent Application No. 201210137315.1, entitled "Wireless Link Management Method, User Equipment and Base Station", filed on May 4, 2012, the entire contents of which are incorporated by reference. In this application.

Technical field

 The present invention relates to the field of communications, and more particularly to a method, user equipment and base station for radio link management. Background technique

 Currently, before the Coordinated Multi-point ("Comp") technology is introduced, the User Equipment ("UE") only needs to perform radio link monitoring on the radio link of one cell (Radio Link). Monitor, abbreviated as "RLM"); that is, the UE evaluates the quality of the wireless link in a past period of time at a certain period, and compares the quality of the radio link with the synchronization or out-of-step threshold, when the signal quality is low. At a certain threshold, the corresponding out-of-step counter is incremented by 1. When the signal quality is higher than a certain threshold, the corresponding synchronous counter is incremented by one; when the out-of-step timer continuously accumulates a predetermined number, the timer T is started. The timer T may also be referred to as an out-of-synchronization timer. If the synchronization counter does not continuously accumulate a predetermined number within a predetermined time of the timer T, it indicates that the radio link fails (Radio Link Failure, referred to as "RLF"). ). After the RLF occurs, the UE needs to initiate an RRC re-establishment procedure to re-contact the cell.

 However, with the introduction of the Comp technology, the UE can be provided with a wireless link service by multiple access points. At this time, the RLM process of the traditional one-node-based radio link is no longer suitable for the scenario where the UE obtains signals on the radio links of multiple nodes in the Comp scenario, how to maintain the channel quality of multiple links of the UE, and when the UE Initiating the radio resource control protocol (Radio Resource Control, referred to as "RRC") re-establishment process is an urgent problem to be solved now. Summary of the invention

The embodiments of the present invention provide a method for radio link management, a UE, and a base station, which can effectively maintain multiple radio links of a UE, and initiate RRC re-establishment when necessary, thereby enabling the UE to The quality of service is well protected.

 In one aspect, a method for managing a wireless link is provided, the method comprising: receiving a wireless link information set sent by a base station, the wireless link information set being used to indicate at least one wireless chain that needs to be performed by the wireless link to listen to the RLM According to the wireless link information set, performing RLM on the at least one wireless link that needs to be performed RLM; generating a wireless link on the at least one first wireless link in the at least one wireless link that needs to be performed RLM When the RLF fails, the RRC RRC re-establishment process is triggered.

 In another aspect, a method of managing a wireless link is provided, the method comprising: determining a wireless link information set, the wireless link information set being used to indicate at least one wireless link that needs to be performed by a wireless link to listen to an RLM; Transmitting the set of radio link information to the UE, so that the UE performs RLM on the at least one radio link that needs to be performed RLM, and occurs on the at least one first radio link in the RLM radio link that needs to be performed When the radio link fails RLF, the RRC RRC re-establishment process is triggered.

 In a further aspect, a UE is provided, where the UE includes: a receiving module, configured to receive a radio link information set sent by the base station, where the radio link information set is used to indicate at least one radio that needs to be performed by the radio link to listen to the RLM a monitoring module, configured to perform, according to the wireless link information set received by the receiving module, an RLM for the at least one wireless link that needs to be executed by the RLM; and a re-establishment module, configured to: at least the RLM that needs to be executed The radio resource control protocol RRC re-establishment procedure is triggered when at least one of the first radio links of the radio link fails the radio link failure RLF.

 In a further aspect, a base station is provided, the base station includes: a determining module, configured to determine a radio link information set, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM; a first sending module, configured to send, by the UE, the set of radio link information determined by the first determining module, so that the UE performs RLM on the at least one radio link that needs to be performed RLM, and is executed in the need The radio resource control protocol RRC re-establishment procedure is triggered when at least one of the first radio links in the RLM radio link fails the radio link failure RLF.

Based on the above technical solution, the method, the UE, and the base station of the radio link management according to the embodiment of the present invention send, by the base station, a radio link information set including link information of a radio link that needs to be performed by the RLM, and the UE according to the UE. The radio link information set sent by the base station performs RLM on the radio link that needs to be performed by the RLM, and initiates an RRC re-establishment process when necessary, which can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is obtained. Better protection. DRAWINGS

 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

 FIG. 1 is a schematic flowchart of a method for radio link management according to an embodiment of the present invention.

 FIG. 2 is a schematic flowchart of a method for radio link management according to another embodiment of the present invention. FIG. 3 is a schematic flowchart of a method for radio link management according to another embodiment of the present invention. FIG. 4 is a schematic flowchart of a method for radio link management according to another embodiment of the present invention. FIG. 5 is a schematic flowchart of a method for radio link management according to another embodiment of the present invention. FIG. 6 is a schematic block diagram of a UE according to an embodiment of the present invention.

 FIG. 7 is a schematic block diagram of a UE according to another embodiment of the present invention.

 FIG. 8 is a schematic block diagram of a base station according to an embodiment of the present invention.

 9 is a schematic block diagram of a base station according to another embodiment of the present invention. detailed description

 BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication ("GSM") system, Code Division Multiple Access (CDMA). ") System, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service ("GPRS"), Long Term Evolution (LTE) System, LTE Frequency Division Duplex ("FDD") system, LTE Time Division Duplex ("TDD"), Universal Mobile Telecommunication System (UMTS) Wait. The base station may be a Global System of Mobile communication ("GSM") or a base station (Base Transceiver Station, "BTS") in CDMA, or a base station (NodeB) in WCDMA, or An evolved Node B ("eNB or e-NodeB") in LTE.

 User equipment (User Equipment, referred to as "UE"), also called terminal, mobile terminal

(Mobile Terminal), mobile user equipment, etc., may communicate with one or more core networks via a radio access network (for example, Radio Access Network, referred to as "RAN"), and the user may be a mobile terminal, such as a mobile phone (or For "cellular" phones and computers with mobile terminals, for example, portable, pocket, handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with the wireless access network.

 1 is a schematic flow chart of a method 100 of radio link management in accordance with an embodiment of the present invention. As shown in FIG. 1, the method 100 includes:

 S110. Receive a radio link information set sent by a base station, where the radio link information set is used to indicate at least one radio link that needs to be executed by the RLM.

 S120. Perform RLM on the at least one wireless link that needs to be executed by the RLM according to the radio link information set.

 S130. Trigger an RRC re-establishment procedure when the RLF occurs on at least one of the at least one radio link of the at least one radio link that needs to be executed by the RLM.

 The base station determines, from the plurality of radio links serving the UE, a radio link that needs to be subjected to the RLM, where the radio link that needs to be performed the RLM may be a part of the links of the multiple services serving the UE, For all the links, after determining the radio link that needs to be performed by the RLM, the base station may send the radio link information set including the link information of the radio link that needs to be performed the RLM to the UE; the UE receives the base station. After the transmitted radio link information set, the RLM may be performed on the radio link indicated by the radio link set, and when it is determined that the RLF occurs on the first radio link, the UE is triggered to perform an RRC re-establishment process. Through the RRC re-establishment process, the UE can re-establish an RRC connection with the base station to prevent the link caused by the RLF from being abnormal.

 In this embodiment and subsequent embodiments, the radio link that needs to be monitored by the radio link to listen to the RLM may be a link of a plurality of different base stations, which may be macro base stations or small base stations belonging to the macro base station. The form of the small base station includes but is not limited to low power nodes such as pico, femto, and the like.

Therefore, according to the method for radio link management according to an embodiment of the present invention, a packet is sent to a UE by a base station. a radio link information set of link information of a radio link that needs to be executed by the RLM, and the RLM is performed by the UE on the radio link that needs to be subjected to the RLM according to the radio link information set sent by the base station, and is initiated when necessary The RRC re-establishment process can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed.

 In the embodiment of the present invention, as shown in FIG. 2, after the S130 triggers the RRC re-establishment process, the method 100 may further include:

 S150. The first RLF notification message is reported to the base station, where the first RLF notification message includes link information of the at least one first radio link where the RLF occurs, or includes the at least one first radio link where the RLF occurs. Link information and measurement results obtained when the RLM is performed on the at least one first wireless link.

 That is, after triggering the RRC re-establishment process, the UE may send, to the base station, link information including the first radio link where the RLF occurs, or link information of the at least one first radio link where the RLF occurs and the at least one The first RLF notification message of the measurement result of the first radio link, so that the base station can support mobile robustness optimization after receiving the first RLF notification message sent by the UE.

 It should be understood that, in the embodiment of the present invention, in the RRC re-establishment process, when the UE is connected to another base station different from the original base station, the first RLF may be reported to the original base station by the other base station that is reconnected. Notification message.

 In the embodiment of the present invention, the at least one first radio link may be any one of the at least one radio link that needs to be performed RLM, and may be currently all of the at least one radio link that needs to be executed RLM The link may be any one of the designated links in the at least one wireless link that needs to be executed RLM or all current links, or may be the main chain in the at least one wireless link that needs to be executed RLM The path may be other links, which is not limited by the embodiment of the present invention.

It should be understood that, in the embodiment of the present invention, the link information of the first radio link may be sent by the base station to the UE through the radio link information set, or may be sent to the UE by using other messages before sending the radio link information set. It can also be stored locally for the UE, which is not limited by the embodiment of the present invention. It should also be understood that, in the embodiment of the present invention, the primary link may be a link that transmits a Common Search Space (CSS) domain information, such as a macro base station providing a wide coverage in a Comp scenario. The link of the UE, where the link information of the primary link may be configured by the base station to the UE, or may be locally stored by the UE. In the embodiment of the present invention, as shown in FIG. 2, before the RLF of the first radio link in the radio link of the RLM is performed, the method 100 may further include:

 S142. If the RLF occurs on the at least one second radio link, send a second RLF notification message to the base station, where the second RLF notification message includes link information of the at least one second radio link where the RLF occurs, or includes the occurrence of the link information. Link information of the at least one second wireless link of the RLF and measurement results of the at least one second wireless link.

 That is, before the RLF occurs on the first radio link, if the RLF occurs on the second radio link, the UE may send the second radio link including the RLF to the base station by using a radio link other than the second radio link. Link information, or a link information including the link information of the at least one first radio link where the RLF occurs and the second RLF notification message of the measurement result of the at least one first radio link. Therefore, after receiving the second RLF notification message sent by the UE, the base station may perform scheduling processing, for example, not scheduling the UE on the second radio link, updating scheduling resources of the UE, and restoring activation of the UE and the second wireless. For the communication of the link, the radio link corresponding to the UE is deleted from the Comp measurement set or the Comp resource management set, or the UE is prevented from entering the idle state.

 In the embodiment of the present invention, as shown in FIG. 2, the method 100 may further include:

 S144. When the at least one second radio link includes the primary link in the at least one radio link that needs to be performed by the RLM, receive the link of the updated primary link sent by the base station according to the second RLF notification message. And receiving, by the base station, handover information sent according to the second RLF notification message, where the handover information is used to indicate that the UE switches to the target primary link.

 S146. Perform RLM on the updated primary link or the target primary link.

 That is, when the information of the primary link is included in the second RLF notification message, the base station needs to update the primary link for the UE, or determine the target primary link that the UE needs to handover, and send the link including the updated primary link to the UE. Information, or handover information used to indicate that the UE switches to the target primary link; after receiving the updated link information of the primary link sent by the base station, the UE may perform RLM on the updated primary link, or receive the information After the handover information sent by the base station to indicate that the UE switches to the target primary link, the handover may be performed to the target primary link, and after the handover to the target primary link, the RLM is performed on the target primary link.

It should be understood that, in the embodiment of the present invention, after receiving the second RLF notification message sent by the UE, the base station may also determine a new UE for the UE if the second RLF notification message further includes other links of the non-primary link. a link to replace the other link, wherein the determined number of new links may be equal to the number of other links of the non-primary link, or may be more or less than other links of the non-primary link The quantity should be determined according to the specific situation, and the embodiment of the present invention does not limit this.

(Carrier Aggregation, abbreviated as "CA") in the scenario where the at least one first radio link may be at least one of the primary cell Pcells in the CA scenario, when the UE is working in the scenario of the CA and the Comp. The radio link, or in the scenario where the UE is working in the CA and the Comp, in the scenario of the Comp, the cell that sends the Physical Downlink Control Channel ("PDCCH") configuration information is the primary cell PCell in the CA scenario. The at least one first radio link may be at least one radio link corresponding to the cell in the Comp that sends the PDCCH configuration information.

 Of course, when the RLF of the corresponding first wireless link is generated in the scenario of the coexistence of the comp and the CA, the UE may also perform the RLF when at least one third radio link occurs before the RLF occurs on the first radio link. Sending, to the base station, a third RLF notification message, where the third RLF notification message includes link information of the third wireless link, or link information of the at least one third wireless link that generates the RLF, and the at least one third wireless The measurement result of the link. After the base station receives the third RLF notification message sent by the UE, the scheduling process may be performed, for example, the UE is not scheduled on the third radio link, the scheduling resource of the UE is updated, and the UE and the third wireless are resumed. For the communication of the link, the radio link corresponding to the UE is deleted from the multi-point cooperative Comp measurement set or the Comp resource management set, or the UE is prevented from entering the idle state.

In the embodiment of the present invention, the measurement result of the radio link may be a CSI-RS based measurement result, including a radio resource management (Radio Resource Management, referred to as "RRM") measurement result or a channel quality indicator of the CSI-RS ( Channel Quality Indication (CQI) for measurement results; can be CSI-RS in the Comp Resource Management set, or Com Measurement Set, or Com Cooperative Set The measurement result based on the CRS reference signal may be included, including the RRM measurement result or the CQI measurement result of the CRS; or may be the measurement result of the Demodulate Reference Signal (DM-RS); wherein the measurement The result can be expressed by Signal-to-Noise Ratio (SNR) or Signal to Interference plus Noise Ratio (SINR), or reference signal receiving power. Power, "RSRP") or Reference Signal Receiving Quality ("RSRQ") indicates that it should be based on the specific situation Given embodiment, the present invention and these are not Limited. The measurement result may be a measurement result of the UE when the RLF is generated on the radio link, or may be a measurement result of the UE in the period before the RLF occurs on the radio link, which is determined according to a specific situation, and is not performed by the embodiment of the present invention. limited.

 In the embodiment of the present invention, the link information of the radio link in the radio link information set may be represented by configuration information of a channel state information-reference signal (CSI-RS). In S110 in the method 100, receiving the radio link information set sent by the base station may include:

 Receiving, by the base station, a radio link information set, where the radio link information set includes indication information used to indicate that the UE uses the CSI-RS to perform RLM on the at least one radio link that needs to be performed by the RLM, and includes Determining configuration information of the CSI-RS of the at least one wireless link that needs to be executed by the RLM;

 Correspondingly, in S120, the performing the RLM on the at least one wireless link that needs to be executed by the RLM includes:

 According to the CSI-RS, the RLM is performed on at least one radio link that needs to be executed by the RLM. The CSI-RS may be a UE-level CSI-RS reference signal, or may be a Cell-RS reference signal of a Cell level, such as a CSI-RS reference signal in a new carrier type, and the signal may be used in a data field of the UE or The data demodulation of the control domain may also be a CSI-RS reference signal of a base station or a Comp transmission level.

 That is, when transmitting the CSI-RS configuration information of the radio link that needs to be performed by the RLM to the UE, the base station may send an indication information to the UE, and notify the UE whether to perform RLM for the CSI-RS of the CSI-RS configuration information, where The specific configuration semantics can be as follows:

 PhysicalConfigDedicatedScell-rlO: : = SEQUENCE!

 --DL configuration as well as configuration applicable for DL and UL

 nonUL-Configuration-r 10 SEQUENCE!

 antennalnfo-rlO AntennalnfoDedicated-r 10 OPTIONAL, crossCarrierSchedulingConfig-rlO CrossCarrierSchedulingConfig-rlO OPTIONAL, --Need ON

csi-RS-Config-rlO CSI-RS-Config-rlO OPTIONAL, csi-RLM-rl 1 BOOLEAN OPTIONAL, pdsch-ConfigDedicated-rlO pdsch-ConfigDedicated OPTIONAL, In the embodiment of the present invention, performing RLM on the at least one radio link that needs to be performed by the RLM according to the CSI-RS may include:

 According to CSI-RS, a predetermined CSI-RS threshold for judging synchronization or a CSI-RS threshold for judging out-of-synchronization, and a synchronization timer or out-of-synchronization timer according to RLM applied to CSI-RS RLM is performed on at least one wireless link that needs to be executed RLM.

 In the embodiment of the present invention, when the UE performs the RLM link to perform radio link monitoring based on the CSI-RS, the synchronization (Qin) or the out-of-step (Qout) threshold corresponding to the RLM mechanism is used in the CSI-RS. The configured threshold value corresponds to the synchronization of the RLM mechanism, the out-of-step timers N310, N311, T310, and the ratio of the period to the CSI-RS is constant. The CSI-RS threshold, the synchronization timer, and the out-of-synchronization timers N310, N311, and T310 may be configured by the eNB to be locally stored by the UE or the UE.

 In the non-DRX mode, the physical layer of the UE can evaluate the quality of the radio link in a past period of time at a certain period, and compare the quality of the radio link with the synchronization or out-of-step threshold, and then to the UE. The high level reports a synchronization or out of step indication. The certain period may be locally stored by the base station to the UE or the UE, and may be equal to the period of the CSI-RS or multiplied or proportional to the period of the CSI-RS.

 For example, you can use the following configuration in the protocol:

 RadioResourceConfigDedicated ::= SEQUENCE!

 //ignore...

 physicalConfigDedicated physicalConfigDedicated OPTIONAL,

Need ON rlf-TimersAndConstants-r9 RLF- TimersAndConstants-r9 OPTIONAL measSubframePatternPCell-rlO. measSubframePatternPCell-rlO, OPTIONAL

[[ rlf-TimersAndConstants-csi-rl 1 RLF-TimersAndConstants-csi-rl 1

OPTIONAL --Need ON It should be understood that, in the embodiment of the present invention, the wireless link information set may also include

The UE uses the cell-specific reference signal (Cell-specific Reference Signal, referred to as "CRS") to perform RLM indication information on the radio link that needs to be executed by the RLM, and includes a radio link for indicating that the RLM needs to be performed. CRS configuration information.

 Of course, in the embodiment of the present invention, the UE may perform RLM on the part of the radio link according to the CSI-RS of the part of the radio link, and perform RLM on the other part of the radio link according to the CRS of the other part of the radio link. .

 In the embodiment of the present invention, the radio link information set includes CSI-RS configuration information, or includes identification information of a transmission point, or includes identification information of a cell, or includes carrier information, or includes CSI-RS configuration information and transmission. The identification information of the point, or the CSI-RS configuration information and the identification information of the cell, or the CSI-RS configuration information and the carrier information, or the CSI-RS configuration information, the identification information of the transmission point, and the identification information of the cell, or include CSI-RS configuration information, identification information of the transmission point, and carrier information, or including identification information of the transmission point, or including carrier information and cell identification information, or including CSI-RS configuration information, identification information of the transmission point, and identification information of the cell And carrier information for indicating at least one wireless link that needs to be performed by the RLM.

 The CSI-RS may be a UE-level CSI-RS reference signal, or may be a Cell-level CSI-RS reference signal, such as a CSI-RS reference signal in a new carrier type, and the signal may be used.

The data demodulation of the data domain or the control domain of the UE may also be a CSI-RS reference signal of the eNB or Comp multi-point cooperation transmission level, which is not limited in the embodiment of the present invention.

 It should be understood that the radio link in the embodiment of the present invention may refer to a link from a cell to a UE, and may refer to a link from a transmission point to a UE, and may also refer to a link between a corresponding port on the transmission point and the UE, and should be based on specific conditions. The embodiments of the present invention are not limited thereto.

 Therefore, according to the method for radio link management of the embodiment of the present invention, a radio link information set including link information of a radio link that needs to be subjected to RLM is transmitted to a UE by a base station, and the radio link transmitted by the UE according to the base station The information set performs RLM on the radio link that needs to be executed by the RLM, and initiates an RRC re-establishment process when necessary, and can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed.

The method of radio link management according to an embodiment of the present invention has been described above from the UE side with reference to FIG. 1 and FIG. 2, and a method of radio link management according to an embodiment of the present invention will be described from the base station side with reference to FIG. 3 and FIG. FIG. 3 is a schematic flowchart of a method for managing a wireless link according to an embodiment of the present invention. The method 200 can be performed by a base station. As shown in FIG. 3, the method 200 includes:

 S210. Determine a radio link information set, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM.

 S220. Send the radio link information set to the UE, so that the UE needs to be executed.

At least one radio link of the RLM performs RLM, and triggers an RRC re-establishment procedure when the radio link failure RLF occurs on at least one of the first radio links in the RLM radio link to be executed.

 Therefore, according to the method of radio link management according to the embodiment of the present invention, a radio link information set including link information of a radio link that needs to be subjected to RLM is transmitted to a UE by a base station, and the UE is transmitted by a radio link according to the base station. The information set performs RLM on the radio link that needs to be executed by the RLM, and initiates an RRC re-establishment process when necessary, and can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed.

 In the embodiment of the present invention, as shown in FIG. 4, the method 200 may further include:

 S240. Acquire a first RLF notification message that is sent by the UE after triggering the RRC re-establishment process, where the first RLF notification message includes link information of the at least one first radio link where the RLF occurs, or includes the at least one of the RLFs. Link information of a first wireless link and measurements of the at least one first wireless link to support mobile robustness optimization.

 In the embodiment of the present invention, as shown in FIG. 5, the method 200 may further include:

 S250. Send a fourth RLF notification message to the neighboring base station, where the fourth RLF notification message includes link information of the at least one first radio link where the RLF occurs, or a chain of the at least one first radio link that generates the RLF The road information and the measurement result of the at least one first wireless link are used to optimize configuration of the neighbor base station.

 In this embodiment of the present invention, the at least one first radio link may be any one of the at least one radio link that needs to be performed RLM, and may be currently all of the at least one radio link that needs to be performed RLM The link may be any one of the designated links in the at least one wireless link that needs to be executed RLM or all current links, or may be the main chain in the at least one wireless link that needs to be performed RLM road.

 In the embodiment of the present invention, as shown in FIG. 5, the method 200 may further include:

S232. Receive a second RLF notification message sent by the UE before the RLF occurs on the at least one first radio link, where the second RLF notification message includes at least one second radio link that generates an RLF. Link information, or link information of the at least one second radio link in which the RLF occurs and a measurement result of the at least one second radio link;

 S234. Perform scheduling processing according to the second RLF notification message.

 The performing the scheduling process may include not scheduling the UE on the second radio link, updating the scheduling resource of the UE, restoring the communication between the UE and the second radio link, and the radio link corresponding to the UE The point collaboration Comp measurement set or the Comp resource management set deletes, and avoids at least one of the UE entering the idle state. Of course, it may be another case, which should be determined according to the specific situation, and is not limited by the embodiment of the present invention. .

 After receiving the second RLF notification message sent by the UE, the base station may also send an RLF notification message to the neighboring base station, where the RLF notification message includes link information of the second radio link that sends the RLF, so that the neighbor base station optimizes the link. Configuration.

 In the embodiment of the present invention, in S234, performing scheduling processing according to the link information of the at least one second radio link may include:

 Determining an updated primary link or a target primary link when link information of the at least one second wireless link includes a primary link;

 Then the method further includes:

 The link information or handover information of the updated primary link is sent to the UE, and the handover message is used to indicate that the UE switches to the target primary link.

 In the embodiment of the present invention, when the UE is working in a scenario of carrier aggregation CA and multi-point cooperation Comp, the at least one first radio link is at least one radio link corresponding to the primary cell Pcell in the CA scenario, or In the scenario where the UE works in the carrier aggregation CA and the multi-point cooperation Comp, when the cell that sends the physical downlink control channel PDCCH configuration information in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless link is At least one radio link corresponding to the cell in which the PDCCH configuration information is transmitted in the Comp.

 Similarly, when the UE is working in the scenario of the carrier aggregation CA and the multi-point cooperation Comp, the method 200 may further include: before the RLF occurs on at least one of the first radio links, the method 200 may further include:

Receiving a third RLF notification message sent by the UE before the RLF occurs on the at least one first radio link, where the third RLF notification message includes link information of at least one third radio link where the RLF occurs, or includes RLF occurrence Link information of the at least one third wireless link and measurement results of the at least one third wireless link; According to the third RLF notification message, scheduling processing is performed.

 The scheduling process may include not scheduling the UE on the third radio link, updating the scheduling resource of the UE, restoring the communication of the UE and the third radio link, and measuring the radio link corresponding to the UE from the Comp. The set or the Comp resource management is deleted in a centralized manner, and the UE is prevented from entering the idle state. The present invention is not limited thereto.

 After receiving the third RLF notification message sent by the UE, the base station may also send an RLF notification message to the neighbor base station, where the RLF notification message includes link information of the third radio link that sends the RLF, so that the neighbor base station optimizes the link. Configuration.

 In the embodiment of the present invention, the radio link information set may include indication information for instructing the UE to use the channel state information-reference signal CSI-RS to perform RLM on the at least one radio link that needs to be performed RLM, and Configuring configuration information for indicating a CSI-RS of the at least one radio link that needs to be performed by the RLM, so that the UE performs RLM on the at least one radio link that needs to be performed according to the CSI-RS.

 In the embodiment of the present invention, the CSI-RS may be a CSI-RS reference signal of a UE level, or may be a CSI-RS reference signal of a Cell level, such as a CSI-RS reference signal in a new carrier type, and the signal may be used. The data demodulation of the data domain or the control domain of the UE may also be a CSI-RS reference signal of the eNB or the Comp transport level, which is not limited by the embodiment of the present invention.

 In the embodiment of the present invention, the base station may further send a synchronization timer or an out-of-synchronization timer of the RLM applied to the CSI-RS to the UE, so that the UE may synchronize the timer according to the RLM applied to the CSI-RS. The step timer performs RLM on the wireless link that needs to be executed RLM. The base station may send the synchronization timer or the out-of-synchronization timer of the RLM applied to the CSI-RS before transmitting the radio link information set to the UE, or may send the application to the CSI while transmitting the radio link information set. The synchronization timer or the out-of-synchronization timer of the RLM of the RS is not limited in this embodiment of the present invention.

In the embodiment of the present invention, the radio link information set includes CSI-RS configuration information, or includes identification information of a transmission point, or includes identification information of a cell, or includes carrier information, or includes CSI-RS configuration information and transmission. The identification information of the point, or the CSI-RS configuration information and the identification information of the cell, or the CSI-RS configuration information and the carrier information, or the CSI-RS configuration information, the identification information of the transmission point, and the identification information of the cell, or include CSI-RS configuration information, identification information of the transmission point, and carrier information, or identification information including a transmission point, or including carrier information and cell identification information, Or including CSI-RS configuration information, identification information of a transmission point, identification information of a cell, and carrier information, for indicating at least one wireless link that needs to be performed by the RLM.

 Therefore, according to the method for radio link management of the embodiment of the present invention, a radio link information set including link information of a radio link that needs to be subjected to RLM is transmitted to a UE by a base station, and the radio link transmitted by the UE according to the base station The information set performs RLM on the radio link that needs to be executed by the RLM, and initiates an RRC re-establishment process when necessary, and can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed.

 The method for radio link management according to the embodiment of the present invention has been described above with reference to FIG. 1 to FIG. 4, and the following describes the wireless device according to the embodiment of the present invention. Link management method.

 FIG. 5 is a schematic flow diagram of a method 300 of radio link management in accordance with an embodiment of the present invention. As shown in FIG. 5, the method 300 can include:

 5301. The current serving base station base station 1 of the UE determines a radio link that needs to be executed by the RLM according to the multiple links that are served by the UE, where the radio link that needs to be executed by the RLM may be all links that serve the UE. A part of the link that may be served by the UE, for example, the primary link of the UE or the remote radio header (RRH) that is closest to the UE is connected to the UE; the base station determines that the RLM needs to be performed. After the wireless link, the link information including the determined radio link that needs to be performed RLM may be sent to the UE, where the link information of the radio link that needs to be executed by the RLM may be executed by the RLM through the need The CSI-RS configuration information of the radio link indicates that the CSI-RS may be a CSI-RS reference signal of a UE level, or may be a CSI-RS reference signal of a Cell level, such as a CSI-RS in a new carrier type. The reference signal, which may be used for data demodulation in the data domain or control domain of the UE, or may be a CSI-RS reference signal of an eNB or Comp transmission level.

 5302. After receiving the radio link information set sent by the base station 1, the UE performs RLM on the radio link that needs to be executed by the RLM, if it is determined that the link in the radio link of the RLM is performed occurs.

RLF, and determining that the radio link in which the RLF occurs is not a predetermined link capable of triggering RRC re-establishment, the RLF notification message may be sent to the base station 1 by the radio link not generating the RLF, where the RLF notification message includes the RLF occurrence Link information of the wireless link.

After receiving the RLF notification message sent by the UE, the base station 1 may forward the RLF notification message to the base station 2, so that the base station 2 optimizes the link configuration. After receiving the RLF notification message sent by the UE, the base station 1 may forward the RLF notification message to the base station 3, so that the base station 2 optimizes the link configuration.

 5305. After receiving the RLF notification message sent by the UE, the base station 1 may allocate a new radio link to the UE, where the number of allocated new radio links may be equal to the number of radio links in which the RLF occurs, or may not Equally, the UE may not be allocated a new radio link. However, when the radio link in which the RLF occurs includes the primary link, the base station 1 needs to update the primary link for the UE, or send the indication to indicate that the UE switches to the target. The switching message of the primary link.

 After receiving the updated link information sent by the base station 1, the UE may perform RLF on the updated link, and if receiving the handover message sent by the base station 1, switch to the new link, and switch to the switched link. The road performs RLM.

 The RRC re-establishment may be initiated when the UE determines that the RLF is triggered on the link that can trigger the RRC re-establishment. The link information of the link that can trigger the RRC re-establishment may be that the base station 1 notifies the radio link information set. The UE may also be locally stored by the UE.

 5308. After the target base station base station 2 after the RRC re-establishment is not the original base station base station 1, the UE may send an RLF notification message to the base station 2 for notifying the base station 2 of the link information of the wireless link capable of triggering the RRC re-establishment.

 5309. After receiving the RLF notification message sent by the UE, the base station 2 may perform an optimized link configuration, and forward the RLF notification message to the original base station base station 1 of the UE.

 5310: After receiving the RLF notification message sent by the UE, the base station 1 may perform an optimized link configuration, and forward the RLF notification message to a neighboring base station, for example, the base station 3, so that the neighbor base station optimizes the link configuration.

 It should be understood that the method for radio link management of the embodiment of the present invention shown in the foregoing method 300 is only that, for example, the base station 1 forwards the RLF notification message to the base station 3 in S310, which can be performed by the base station 2. For another example, S303 and 304 can be executed after S305.

Therefore, according to the method for radio link management of the embodiment of the present invention, a radio link information set including link information of a radio link that needs to be subjected to RLM is transmitted to a UE by a base station, and the radio link transmitted by the UE according to the base station The information set performs RLM on the radio link that needs to be executed by the RLM, and initiates an RRC re-establishment process when necessary, and can effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed. The method of radio link management according to the present invention has been described above with reference to Figs. 1 through 5, and a UE and a base station according to an embodiment of the present invention will be described below with reference to Figs.

 FIG. 6 is a schematic block diagram of a UE according to an embodiment of the present invention. As shown in FIG. 6, the UE 400 includes a receiving module 410, configured to receive a radio link information set sent by the base station, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM.

 The monitoring module 420 is configured to perform, according to the wireless link information set received by the receiving module 410, an RLM for the at least one wireless link that needs to be executed by the RLM;

 The re-establishment module 430 is configured to trigger an RRC re-establishment procedure when the radio link failure RLF occurs on the at least one first radio link in the radio link that needs to be executed by the RLM.

 Optionally, as shown in FIG. 7, in addition to the receiving module 410, the listening module 420, and the re-establishing module 430, the UE 400 further includes:

 The first sending module 440 is configured to report, to the base station, a first RLF notification message, where the first RLF notification message includes link information of the at least one first radio link where the RLF occurs, or the at least one part that includes the RLF Link information of a wireless link and measurement results of the at least one first wireless link.

 Optionally, the at least one first wireless link is any one of the at least one wireless link that needs to be performed RLM, or is currently all links in the at least one wireless link that needs to be performed RLM, or Any one of the designated links or at least all of the links in the at least one wireless link that need to be performed the RLM, or the primary link in the at least one wireless link that needs to be performed the RLM.

 Optionally, as shown in FIG. 7, the UE 400 further includes:

 The second sending module 450 is configured to send, to the base station, a second RLF notification message when the RLF occurs on the at least one second radio link, where the second RLF notification message includes the at least one second radio link that generates the RLF Link information, or link information of the at least one second radio link in which the RLF occurs and a measurement result of the at least one second radio link.

 Optionally, the receiving module 410 is further configured to:

Receiving, by the base station, link information of the updated primary link sent by the base station according to the second RLF notification message, when the at least one second wireless link includes the primary link in the wireless link that performs the RLM, or receiving the The handover information sent by the base station according to the second RLF notification message, where the handover information is used to indicate that the UE switches to the target primary link; The monitoring module 420 is further configured to perform RLM on the updated primary link or the target primary link. Optionally, when the UE works in a scenario of the CA and the Comp, the at least one first radio link is at least one radio link corresponding to the primary cell Pcell in the CA scenario, or the UE works in the CA and the Comp In the scenario, when the cell that sends the physical downlink control channel PDCCH configuration information in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless link is at least one wireless corresponding to the cell in which the PDCCH configuration information is sent in the Comp. link.

 Optionally, as shown in FIG. 7, the UE 400 further includes:

 The third sending module 460 is configured to send a third RLF notification message to the base station when the RLF occurs on the at least one third radio link, where the third RLF notification message includes a chain of the at least one third radio link that generates the RLF The road information, or the link information of the at least one third radio link where the RLF occurs and the measurement result of the at least one third radio link.

 Optionally, the receiving module 410 is specifically configured to:

 Receiving, by the base station, a radio link information set, where the radio link information set includes an indication for instructing the UE to use the channel state information-reference signal CSI-RS to perform RLM on the at least one radio link that needs to be performed RLM Information, and including information indicating a CSI-RS configuration of the at least one wireless link that needs to be performed by the RLM;

 The monitoring module 420 is specifically configured to:

 According to the CSI-RS, the RLM is performed on at least one wireless link that needs to be executed by the RLM. The monitoring module 420 is specifically configured to:

 According to the CSI-RS, a predetermined CSI-RS threshold for judging synchronization or for judging out-of-synchronization

The CSI-RS threshold value, and the synchronization timer or out-of-synchronization timer according to the RLM applied to the CSI-RS, performs RLM on at least one radio link that needs to be executed by the RLM.

 Optionally, the ratio of the synchronization timer or the out-of-synchronization timer of the RLM applied to the CSI-RS to the period of the CSI-RS is constant.

Optionally, the radio link information set includes CSI-RS configuration information, or includes identification information of a transmission point, or includes identification information of a cell, or includes carrier information, or includes CSI-RS configuration information and an identifier of a transmission point. Information, or including CSI-RS configuration information and identification information of a cell, or including CSI-RS configuration information and carrier information, or including CSI-RS configuration information, identification information of a transmission point, and identification information of a cell, or including CSI-RS Configuration information, identification information of the transmission point, and carrier information, or including identification information of the transmission point, or including carrier information and cell identification information, or including CSI-RS The configuration information, the identification information of the transmission point, the identification information of the cell, and the carrier information are used to indicate the radio link that needs to be executed by the RLM.

 • ^. ^\ T TF ^nn ^ΓΧΦ thousand ' "g UEs in methods 100 and 200, and the above and other operations of the various modules in UE 300 are for the respective methods 100 through 300 of Figures 1 through 5, respectively The process, for the sake of brevity, will not be described here.

 Therefore, the UE according to the embodiment of the present invention performs RLM on the radio link that needs to be performed RLM by receiving the radio link information set transmitted by the base station including the link information of the radio link that needs to be performed RLM, and is necessary The RRC re-establishment process is initiated to effectively maintain multiple radio links of the UE, so that the quality of service of the UE is well guaranteed.

 The UE according to an embodiment of the present invention has been described above with reference to FIGS. 6 and 7, and a base station according to an embodiment of the present invention will be described below with reference to FIGS. 8 and 9.

 FIG. 8 is a schematic block diagram of a base station according to an embodiment of the present invention. As shown in FIG. 8, the base station 500 includes:

 a determining module 510, configured to determine a radio link information set, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM;

 The first sending module 520 is configured to send the radio link information set determined by the first determining module 510 to the UE, so that the UE performs RLM on the at least one radio link that needs to be performed RLM, and needs the The radio resource control protocol RRC re-establishment procedure is triggered when the radio link failure RLF occurs on at least one of the first radio links in the executed RLM radio link.

 Optionally, as shown in FIG. 9, the base station 500 further includes:

 The obtaining module 530 is configured to obtain, by the UE, a first RLF notification message that is sent after the RRC re-establishment process is triggered, where the first RLF notification message includes link information of the at least one first radio link where the RLF occurs, or includes the occurrence Link information of the at least one first wireless link of the RLF and measurements of the at least one first wireless link to support mobile robustness optimization.

 Optionally, as shown in FIG. 9, the base station 500 further includes:

 The second sending module 540 sends a fourth RLF notification message to the neighboring base station, where the fourth RLF notification message includes link information of the at least one first radio link where the RLF occurs, or the at least one first wireless that includes the RLF The link information of the link and the measurement result of the at least one first radio link, so that the neighbor base station optimizes the configuration.

Optionally, the at least one first wireless link is the at least one wireless that needs to be executed RLM Any of the links, or any of the links in the at least one radio link that need to be RLM-enabled, or any of the specified links in the at least one radio link that is required to perform the RLM Or all current links, or the primary link in at least one wireless link for which RLM needs to be performed.

 Optionally, as shown in FIG. 9, the base station 500 further includes:

 The first receiving module 552 is configured to receive a second RLF notification message that is sent by the UE before the RLF occurs on the at least one first radio link, where the second RLF notification message includes the at least one second radio link of the RLF Link information, or link information of the at least one second radio link in which the RLF occurs and a measurement result of the at least one second radio link. The at least one first wireless link is any one of the at least one wireless link that needs to be performed RLM, or all current links in the at least one wireless link that need to be RLM, or Any one of the designated links in the at least one wireless link of the RLM or the current all link, or the primary link in the at least one wireless link that needs to be performed the RLM.

 The first scheduling processing module 554 is configured to perform scheduling processing according to the second RLF notification message received by the first receiving module. The performing the scheduling process may include not scheduling the UE on the at least one second radio link, updating the scheduling resource of the UE, restoring the communication of the UE and the at least one second radio link, and the wireless corresponding to the UE The link is deleted from the multipoint coordinated Comp measurement set or the Comp resource management set, and at least one of avoiding the UE entering the idle state.

 Optionally, the first scheduling processing module 552 is specifically configured to:

 Determining an updated primary link or a target primary link when link information of the at least one second wireless link includes a primary link;

 The base station also includes:

 The third sending module 560 is configured to send, to the UE, link information or handover information of the updated primary link, where the handover message is used to indicate that the UE switches to the target primary link.

 Optionally, when the UE works in a scenario of the CA and the Comp, the at least one first radio link is at least one radio link corresponding to the primary cell Pcell in the CA scenario, or the UE works in the CA and the Comp In the scenario, when the cell that sends the physical downlink control channel PDCCH configuration information in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless link is at least one wireless corresponding to the cell in which the PDCCH configuration information is sent in the Comp. link.

Optionally, the base station 500 further includes: The second receiving module 572 receives a third RLF notification message that is sent by the UE before the RLF occurs on the at least one first radio link, where the third RLF notification message includes link information of the at least one third radio link that generates the RLF. Or the link information of the at least one third radio link that generates the RLF and the measurement result of the at least one third radio link; wherein the UE works in a scenario of CA and Comp, the at least one first wireless When the link is at least one radio link corresponding to the primary cell Pcell in the CA scenario, or the cell in which the physical downlink control channel PDCCH configuration information is sent in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless link The path is at least one radio link corresponding to the cell in which the PDCCH configuration information is transmitted in the Comp.

 The second scheduling processing module 574 is further configured to:

 Performing a scheduling process according to the third RLF notification message received by the second receiving module 572, where the scheduling process may include not scheduling the UE on the at least one third radio link, updating scheduling resources of the UE, and restoring the The communication between the UE and the at least one third radio link deletes the radio link corresponding to the UE from the Com measurement set or the Comp resource management set, and prevents the UE from entering at least one of the idle states.

 Optionally, the radio link information set includes indication information for instructing the UE to use the channel state information-reference signal CSI-RS to perform RLM on the at least one radio link that needs to be performed RLM, and includes The configuration information of the CSI-RS of the at least one radio link of the RLM is required to be performed, so that the UE performs the RLM on the radio link that needs to be performed the RLM according to the CSI-RS.

 Optionally, as shown in FIG. 9, in the embodiment of the present invention, the base station 500 further includes: a fourth sending module 580, configured to send, to the UE, a synchronization timer or out of synchronization of an RLM applied to a CSI-RS. And a timer that causes the UE to perform RLM on the at least one radio link that needs to be performed RLM according to the synchronization timer or the out-of-synchronization timer applied to the RLM of the CSI-RS.

Optionally, the radio link information set includes CSI-RS configuration information, or includes identification information of a transmission point, or includes identification information of a cell, or includes carrier information, or includes CSI-RS configuration information and an identifier of a transmission point. Information, or including CSI-RS configuration information and identification information of a cell, or including CSI-RS configuration information and carrier information, or including CSI-RS configuration information, identification information of a transmission point, and identification information of a cell, or including CSI-RS The configuration information, the identification information of the transmission point, and the carrier information, or the identification information of the transmission point, or the carrier information and the cell identification information, or the CSI-RS configuration information, the identification information of the transmission point, the identification information of the cell, and the carrier information. To indicate the need At least one wireless link to be executed by the RLM.

 The base station 400 according to an embodiment of the present invention may correspond to the base stations in the methods 100 and 200 of the radio link management in the embodiment of the present invention, and the above and other operations of the respective modules in the base station 400 are respectively for FIG. 1 to FIG. The corresponding processes of the methods 100 to 300 are not repeated here for brevity.

 Therefore, a base station according to an embodiment of the present invention transmits a radio link information set including link information of a radio link that needs to be subjected to RLM to a UE, so that the UE performs RLM on a radio link that needs to be subjected to RLM, and The RRC re-establishment process is initiated when necessary, and the multiple radio links of the UE can be effectively maintained, so that the service quality of the UE is well guaranteed.

 Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

 A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise. The components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

 A method for managing a wireless link, comprising:

 Receiving, by the base station, a radio link information set, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM;

 Performing an RLM on the at least one wireless link that needs to be executed by the RLM according to the wireless link information set;

 A radio resource control protocol RRC re-establishment procedure is triggered when a radio link failure RLF occurs on at least one of the at least one radio link of the RLM that needs to be executed.

 2. The method according to claim 1, wherein the radio link information set includes at least one radio link for indicating that the channel state information-reference signal CSI-RS is used to perform the RLM. Performing indication information of the RLM, and including configuration information for indicating the CSI-RS of the at least one wireless link that needs to be performed by the RLM;

 The performing the RLM on the at least one wireless link that needs to be executed by the RLM comprises: performing an RLM on the at least one wireless link that needs to be executed by the RLM according to the CSI-RS.

 The method according to claim 1 or 2, wherein after the triggering the RRC reestablishment process, the method further comprises:

 And reporting, by the base station, a first RLF notification message, where the first RLF notification message includes link information of the at least one first radio link where the RLF occurs, or the at least one first radio link that includes the RLF Link information and measurement results of the at least one first wireless link.

 The method according to any one of claims 1 to 3, wherein the at least one first radio link is any one of the at least one radio link that needs to be RLM, or All of the current links in the at least one radio link that need to be performed the RLM, or any of the at least one of the at least one of the at least one radio link that needs to be performed the RLM, or all current links Or as the primary link in the at least one wireless link that needs to be performed RLM.

 The method according to claim 4, wherein the method further comprises: before the RLF occurs on the at least one of the at least one radio link that needs to be executed by the RLM, the method further comprises:

Sending a second RLF notification to the base station if the RLF occurs on the at least one second radio link a message, the second RLF notification message includes link information of the at least one second radio link that generates an RLF, or link information of the at least one second radio link that generates an RLF, and the at least one The measurement result of the second wireless link.

 6. The method according to claim 5, wherein the method further comprises: when the at least one second wireless link comprises the primary link in the at least one wireless link that needs to be performed RLM And receiving the updated link information of the primary link that is sent by the base station according to the second RLF notification message, or receiving the handover information that is sent by the base station according to the second RLF notification message, where the handover information is used to indicate User equipment UE switches to the target primary link;

 An RLM is performed on the updated primary link or the target primary link.

 The method according to any one of claims 1-6, wherein, when the UE works in a scenario of carrier aggregation CA and coordinated multi-point Comp, the at least one first radio link is a CA scenario. At least one wireless link corresponding to the primary cell Pcell, or

 When the UE is working in the carrier aggregation CA and the coordinated multi-point Comp, and the cell in which the PDCCH configuration information of the physical downlink control channel is transmitted in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first radio link At least one radio link corresponding to a cell that transmits PDCCH configuration information in Comp.

 The method according to claim 7, wherein the method further comprises: before the RLF occurs on the at least one of the at least one radio link that needs to be executed by the RLM, the method further comprises:

 Sending, to the base station, a third RLF notification message, where the third RLF notification message includes link information of the at least one third radio link where the RLF occurs, or includes Link information of the at least one third wireless link of the RLF and a measurement result of the at least one third wireless link.

 The method according to claim 2, wherein the performing the RLM on the at least one wireless link that needs to be executed by the RLM according to the CSI-RS includes:

 Determining, according to the CSI-RS, a predetermined CSI-RS threshold for determining synchronization, or a CSI-RS threshold for determining out-of-synchronization, and a synchronization timer according to an RLM applied to the CSI-RS or The out-of-synchronization timer performs RLM on the at least one wireless link that needs to be executed RLM.

10. The method according to claim 9, wherein the applying to the CSI-RS The ratio of the synchronization timer or out-of-synchronization timer of the RLM to the period of the CSI-RS is constant.

 The method according to any one of claims 1 to 10, wherein the radio link information set includes CSI-RS configuration information, identification information of a transmission point, identity information of a cell, and carrier information. At least one of the at least one of the at least one wireless link indicating that the RLM needs to be performed.

 12. A method for wireless link management, comprising:

 Determining a set of wireless link information for indicating at least one wireless link that needs to be monitored by the wireless link to listen to the RLM;

 Transmitting the radio link information set to the UE, so that the UE performs RLM on the at least one radio link that needs to be performed RLM, and in the at least one radio link that needs to be performed RLM When the radio link failure RLF occurs on the at least one first radio link, the radio resource control protocol RRC re-establishment process is triggered.

 The method according to claim 12, wherein the radio link information set includes at least one of indicating that the UE uses channel state information-reference signal CSI-RS to the RLM that needs to be performed. The wireless link performs indication information of the RLM, and includes configuration information for indicating the CSI-RS of the at least one radio link that needs to be performed by the RLM, so that the UE according to the CSI-RS The RLM is performed by at least one wireless link that needs to be executed by the RLM.

 The method according to claim 12 or 13, wherein the method further comprises: acquiring a first RLF notification message sent by the UE after triggering an RRC re-establishment process, where the first RLF notification message includes Link information of the at least one first radio link of the RLF, or link information of the at least one first radio link where the RLF occurs and measurement results of the at least one first radio link, so that Support for mobile robust optimization.

 The method according to claim 14, wherein the method further comprises: sending a fourth RLF notification message to the neighbor base station, where the fourth RLF notification message includes the at least one first wireless chain in which the RLF occurs The link information of the path, or the link information of the at least one first radio link where the RLF occurs and the measurement result of the at least one first radio link, so that the neighbor base station optimizes the configuration.

The method according to any one of claims 12 to 15, wherein the at least one first wireless link is any one of the at least one wireless link that needs to be executed RLM a path, or any of the current links in the at least one wireless link that need to be performed the RLM, or any of the specified links in the at least one wireless link that need to be performed the RLM The link, or the primary link in the at least one wireless link that is required to be performing the RLM.

 The method according to claim 16, wherein the method further comprises: receiving a second that is sent by the UE before the RLF occurs on the at least one first radio link

An RLF notification message, the second RLF notification message includes link information of at least one second radio link in which the RLF occurs, or link information of the at least one second radio link in which the RLF occurs, and the at least one Measurement result of the second wireless link;

 According to the second RLF notification message, scheduling processing is performed.

 The method according to claim 17, wherein the performing the scheduling process according to the link information of the at least one second radio link comprises:

 Determining an updated primary link or a target primary link when link information of the at least one second wireless link includes a primary link;

 The method further includes:

 And transmitting, to the UE, link information or handover information of the updated primary link, the handover message being used to instruct the UE to switch to the target primary link.

 The method according to any one of claims 12 to 18, wherein, when the UE works in a scenario of carrier aggregation CA and coordinated multi-point Comp, the at least one first radio link is At least one wireless link corresponding to the primary cell Pcell in the CA scenario, or

 When the UE is in the scenario of the carrier aggregation CA and the coordinated multi-point Comp, and the cell that sends the physical downlink control channel PDCCH configuration information in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless The link is at least one radio link corresponding to the cell in which the PDCCH configuration information is transmitted in the Comp.

 The method according to claim 19, wherein the method further comprises: receiving a third that is sent by the UE before the RLF occurs on the at least one first radio link

An RLF notification message, the third RLF notification message includes link information of at least one third radio link in which the RLF occurs, or link information of the at least one third radio link in which the RLF occurs, and the at least one The measurement result of the third wireless link;

According to the third RLF notification message, scheduling processing is performed.

The method according to claim 13, wherein the method further comprises: sending, to the UE, a synchronization timer or an out-of-synchronization timer applied to an RLM of a CSI-RS, so that the UE is configured according to the A synchronization timer or an out-of-synchronization timer applied to the RLM of the CSI-RS performs RLM on the at least one radio link that needs to be subjected to the RLM.

 The method according to any one of claims 12 to 21, wherein the radio link information set includes CSI-RS configuration information, identification information of a transmission point, identity information of a cell, and carrier information. At least one of the at least one of the at least one wireless link indicating that the RLM needs to be performed.

 A user equipment (UE), comprising:

 a receiving module, configured to receive a radio link information set sent by the base station, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM;

 a monitoring module, configured to perform RLM on the at least one wireless link that needs to be executed by the RLM according to the wireless link information set received by the receiving module;

 And a re-establishment module, configured to trigger a RRC re-establishment procedure when the radio link failure RLF occurs on the at least one of the at least one radio link that needs to be executed by the RLM.

 The UE according to claim 23, wherein the radio link information set includes at least one radio link for indicating that the channel state information-reference signal CSI-RS is used to perform the RLM. Performing indication information of the RLM, and including configuration information for indicating the CSI-RS of the at least one wireless link that needs to be performed by the RLM;

 The monitoring module is specifically configured to:

 And performing RLM on the at least one wireless link that needs to be executed by the RLM according to the CSI-RS.

 The UE according to claim 23 or 24, wherein the UE further comprises: a first sending module, configured to report a first RLF notification message to the base station, where the first RLF notification message includes Link information of the at least one first radio link of the RLF, or link information of the at least one first radio link where the RLF occurs and a measurement result of the at least one first radio link.

The UE according to any one of claims 23 to 25, wherein the at least one The first wireless link is any one of the at least one wireless link that needs to be subjected to the RLM, or is the current all of the at least one wireless link that needs to be performed the RLM, or is needed for the Any one of the designated links in the at least one wireless link of the RLM or all current links, or the primary link in the at least one wireless link that needs to be performed the RLM.

 The UE according to claim 26, wherein the UE further comprises: a second sending module, configured to send a second RLF notification message to the base station when the RLF occurs on the at least one second radio link And the second RLF notification message includes link information of the at least one second radio link where the RLF occurs, or link information of the at least one second radio link that generates the RLF, and the at least one The measurement result of the two wireless links.

 The UE according to claim 27, wherein the receiving module is further configured to: include, in the at least one second radio link, a main chain in the at least one radio link that needs to be executed RLM Receiving the link information of the updated primary link sent by the base station according to the second RLF notification message, or receiving the handover information sent by the base station according to the second RLF notification message, where the handover information is used by the base station Instructing the UE to switch to the target primary link;

 The monitoring module is further configured to perform execution on the updated primary link or the target primary link

RLM.

 The UE according to any one of claims 23 to 28, wherein, when the UE works in a scenario of carrier aggregation CA and coordinated multi-point Comp, the at least one first radio link is At least one wireless link corresponding to the primary cell Pcell in the CA scenario, or

 When the UE is in the scenario of the carrier aggregation CA and the coordinated multi-point Comp, and the cell that sends the physical downlink control channel PDCCH configuration information in the scenario of the Comp is the primary cell PCell in the CA scenario, the at least one first wireless The link is at least one radio link corresponding to the cell in which the PDCCH configuration information is transmitted in the Comp.

 The UE according to claim 29, wherein the UE further comprises: a third sending module, configured to: when the RLF occurs on the at least one third radio link, the sending module is further configured to The base station sends a third RLF notification message, where the third RLF notification message includes link information of the at least one third radio link where the RLF occurs, or a link including the at least one third radio link where the RLF occurs. Information and measurements of the at least one third wireless link.

31. A base station, comprising: a determining module, configured to determine a radio link information set, where the radio link information set is used to indicate at least one radio link that needs to be performed by the radio link to listen to the RLM;

 a first sending module, configured to send the radio link information set determined by the determining module to the UE, so that the UE performs RLM on the at least one radio link that needs to be performed RLM, and is in the The radio resource control protocol RRC re-establishment procedure is triggered when a radio link failure RLF occurs on at least one of the at least one radio link of the at least one radio link that needs to be performed.

 The base station according to claim 31, wherein the radio link information set includes at least one of indicating that the UE uses a channel state information-reference signal CSI-RS to the RLM that needs to be performed. The wireless link performs indication information of the RLM, and includes CSI-RS configuration information for indicating the at least one radio link that needs to be performed the RLM, so that the UE according to the CSI-RS, is required to be The RLM is performed by at least one wireless link performing RLM.

 The base station according to claim 31 or 32, wherein the base station further includes: an acquiring module, configured to acquire a first RLF notification message sent by the UE after triggering an RRC re-establishment process, where the An RLF notification message includes link information of the at least one first radio link in which RLF occurs, or link information of the at least one first radio link in which RLF occurs and the at least one first radio link Measurement results to support mobile robust optimization.

 The base station according to claim 33, wherein the base station further includes: a second sending module, configured to send a fourth RLF notification message to the neighboring base station, where the fourth RLF notification message includes where the RLF occurs Link information of the at least one first radio link, or link information of the at least one first radio link where the RLF occurs and measurement results of the at least one first radio link, so that the neighbor base station optimizes configuration .

 The base station according to any one of claims 31 to 34, wherein the base station further comprises:

a first receiving module, configured to receive a second RLF notification message sent by the UE before the RLF occurs on the first radio link, where the second RLF notification message includes a chain of at least one second radio link that generates an RLF The road information, or the link information of the at least one second radio link where the RLF occurs and the measurement result of the at least one second radio link, where the at least one first radio link is the need Any one of at least one wireless link that is performing the RLM, or all current links in the at least one wireless link that need to be performed the RLM, or for the need Performing any of the specified links or at least all of the links in the at least one wireless link of the RLM, or the primary link in the at least one wireless link that is required to be performing the RLM;

 The first scheduling processing module is configured to perform scheduling processing according to the second RLF notification message received by the first receiving module.

 The base station according to claim 35, wherein the scheduling processing module is specifically configured to:

 Determining an updated primary link or a target primary link when link information of the at least one second wireless link includes a primary link;

 The base station further includes:

 And a third sending module, configured to send, to the UE, link information or handover information of the updated primary link, where the handover message is used to indicate that the UE switches to the target primary link.

 The base station according to any one of claims 31 to 36, wherein the base station further comprises:

 a second receiving module, configured to receive a third RLF notification message sent by the UE before the RLF occurs on the at least one first radio link, where the third RLF notification message includes a chain of a third radio link that generates an RLF The road information, or the link information of the at least one third radio link that generates the RLF and the measurement result of the at least one third radio link, where the UE works in carrier aggregation CA and multi-point cooperation Comp In the scenario, the at least one first radio link is at least one radio link corresponding to the primary cell Pcell in the CA scenario, or in the scenario where the UE works in the carrier aggregation CA and the multi-point cooperation Comp, The cell that sends the PDCCH configuration information of the physical downlink control channel in the scenario is the primary cell PCell in the CA scenario, and the at least one first wireless link is the at least one wireless link corresponding to the cell that sends the PDCCH configuration information in the Comp.

 And a second scheduling processing module, configured to perform scheduling processing according to the third RLF notification message received by the second receiving module.

 The base station according to claim 32, wherein the base station further comprises: a fourth sending module, configured to send, to the UE, a synchronization timer or an out-of-synchronization timer applied to the RLM of the CSI-RS, And causing the UE to perform RLM on the at least one radio link that needs to be performed RLM according to the synchronization timer or the out-of-synchronization timer of the RLM applied to the CSI-RS.