CN110121187B

CN110121187B - Wireless link monitoring method and user equipment

Info

Publication number: CN110121187B
Application number: CN201810118390.0A
Authority: CN
Inventors: 傅婧
Original assignee: 大唐移动通信设备有限公司
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-02-06
Filing date: 2018-02-06
Publication date: 2022-04-22
Anticipated expiration: 2038-02-06
Also published as: CN110121187A

Abstract

The embodiment of the invention provides a method for monitoring a wireless link and user equipment, wherein the method comprises the following steps: the UE determines a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and the UE performs radio link monitoring on the RLM resources. The problem of how the UE monitors the wireless link under the condition of a plurality of active BWPs is solved. Thus, the UE can trigger the judgment behavior when some BWP or BWPs in multiple active BWPs or the whole cell radio link is abnormal in time.

Description

Wireless link monitoring method and user equipment

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a wireless link monitoring method and user equipment.

Background

In new generation wireless communication systems, for example: in a system of a 5th Generation (5G) mobile communication technology (hereinafter, referred to as a 5G system) or a New Radio (NR) system, a concept of a partial Bandwidth (BWP) is introduced, and a cell carrier bandwidth may be divided into a plurality of BWPs. A base station may simultaneously activate multiple BWPs for a connected User Equipment (UE), and at this time, how the UE monitors Radio Link Monitor (RLM) does not have an effective solution at present.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a radio link monitoring method and a user equipment, which solve the problem of how to perform radio link monitoring by a UE when there are multiple active BWPs.

In a first aspect, a method for monitoring a wireless link is provided, including:

the UE determines a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and

and the UE monitors the radio link of the RLM resource.

Optionally, after the UE performs radio link monitoring on the RLM resource, the method further includes:

the physical layer of the UE reports a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

and the RRC layer of the UE determines that RLF occurs in a radio link failure corresponding to BWP (bwpeer-to-peer) or determines RLF occurs in a main cell group MCG or an auxiliary cell group SCG according to the radio link monitoring result.

Optionally, the UE performs radio link monitoring on the RLM resource, including any one of the following manners:

the physical layer of the UE periodically carries out wireless link monitoring on all the active BWPs or part of the active BWPs respectively to obtain the wireless link quality of each BWP, and determines the wireless link monitoring result of each BWP respectively according to the wireless link quality;

the physical layer of the UE periodically monitors the wireless link of all the active BWPs or part of the active BWPs together, and determines the wireless link monitoring result according to the wireless link quality of all the active BWPs or part of the active BWPs;

the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or part of the active BWPs, to obtain the wireless link quality of each BWP, and determines the wireless link monitoring result according to the wireless link quality of all active BWPs or part of the active BWPs.

Optionally, the periodically performing, by the physical layer of the UE, wireless link monitoring on all active BWPs or a part of the active BWPs in the active BWPs, respectively, to obtain a wireless link quality of each BWP, and determining, according to the wireless link quality, a wireless link monitoring result of each BWP, respectively includes:

the physical layer of the UE monitors the wireless link quality of all the RLM resources corresponding to the active BWPs or part of the BWPs in the active BWPs respectively within a preset time period;

when the radio link quality of all RLM resources corresponding to a BWP is worse than a configured first out-of-step threshold value Qout, the physical layer of the UE determines that the radio link of the BWP is out-of-step;

when the radio link quality of any RLM resource corresponding to a BWP is better than a configured first synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization of the BWP.

Optionally, the periodically performing, by the physical layer of the UE, radio link monitoring on all active BWPs or a part of the active BWPs together, and determining a radio link monitoring result according to radio link quality of all the active BWPs or the part of the active BWPs, including:

the physical layer of the UE monitors the radio link quality of all the RLM resources corresponding to the active BWPs or the parts of the active BWPs together within a preset time period;

when the radio link quality of all the activated BWPs or all the RLM resources corresponding to part of the activated BWPs is worse than a configured second threshold out-of-synchronization threshold value Qout, the physical layer of the UE determines that the radio link is out-of-synchronization;

and when the radio link quality of any RLM resource corresponding to all the activated BWPs or part of the activated BWPs is better than a configured second threshold synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization.

Optionally, the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or part of the active BWPs in the active BWPs, respectively, to obtain the wireless link quality of each BWP, and determines a wireless link monitoring result according to the wireless link quality of all active BWPs or part of the active BWPs in the active BWPs, including:

the physical layer of the UE monitors the wireless link quality on the RLM resources corresponding to all the active BWPs or part of the active BWPs respectively within a preset time period;

when the radio link quality of all RLM resources corresponding to a BWP is worse than a configured third out-of-synchronization threshold value Qout, the physical layer of the UE determines that the radio link of the BWP is out-of-synchronization;

when the radio link quality of any RLM resource corresponding to a BWP is better than a configured third synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization of the BWP;

when the wireless links of all the BWPs are out of synchronization, the physical layer of the UE determines that the wireless links are out of synchronization;

the physical layer of the UE determines radio link synchronization when the radio link of any monitored BWP is synchronized.

Optionally, the reporting, by the physical layer of the UE, the radio link monitoring result to the RRC layer of the UE includes:

the physical layer of the UE reports a radio link monitoring result to the RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication, and information that the in-sync indication or the out-of-sync indication corresponds to a BWP; or

The physical layer of the UE reports a radio link monitoring result to the RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication.

Optionally, the radio resource control layer of the UE determines that a radio link failure RLF occurs for the BWP or determines that an RLF occurs for the MCG or the SCG according to the radio link monitoring result, including any one of the following manners:

after receiving N1 continuous out-of-sync indications of BWP, the RRC layer of the UE starts a first timer, and when the N2 continuous in-sync indications of BWP are not received before the first timer is overtime, the UE is determined to generate RLF on the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1;

after receiving N1 continuous out-of-sync indications of BWP, the RRC layer of the UE determines that RLF occurs on the BWP; determining that the UE resumes connection on the BWP after receiving N2 consecutive synchronization indications for the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs for the entire MCG or SCG, where N1 ≧ 1 and N2 ≧ 1.

Optionally, the method further comprises:

when the UE monitors that RLF occurs to a BWP, the UE reports an RLF report of the BWP to a network side, wherein the RLF report comprises: information of the BWP and a corresponding out-of-sync indication.

Optionally, the RLF report further comprises: the radio link monitoring results corresponding to other BWPs on the serving cell, and/or the corresponding measurement results.

Optionally, the method further comprises:

when the UE monitors that a BWP recovers connection, the UE reports a recovery report of the BWP to a network side, wherein the recovery report comprises: information of the BWP and a corresponding synchronization indication.

Optionally, the recovery report further includes wireless link monitoring results and/or corresponding measurement results corresponding to the recovered BWP and other available BWPs.

In a second aspect, there is also provided a UE, including: a processor and a transceiver, wherein the processor is configured to: determining a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and

the processor is further configured to: and monitoring the radio link of the RLM resources.

Optionally, the processor is further configured to: reporting a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

the processor is further configured to: and according to the wireless link monitoring result, determining that the wireless link failure RLF occurs to the corresponding BWP, or determining that the RLF occurs to the main cell group MCG or the auxiliary cell group SCG.

Optionally, the processor is further configured to: performing radio link monitoring on the RLM resources by any one of the following methods:

periodically monitoring all the active BWPs or partial BWPs in the active BWPs respectively to obtain the wireless link quality of each BWP, and respectively determining the wireless link monitoring result of each BWP according to the wireless link quality;

periodically monitoring all the active BWPs or partial BWPs in the active BWPs together, and determining a wireless link monitoring result according to the wireless link quality of all the active BWPs or partial BWPs in the active BWPs;

and periodically monitoring wireless links of all the active BWPs or parts of the active BWPs respectively to obtain the wireless link quality of each BWP, and determining a wireless link monitoring result according to the wireless link quality of all the active BWPs or parts of the active BWPs.

Optionally, the processor is further configured to: respectively monitoring the wireless link quality of all the RLM resources corresponding to the active BWPs or the partial BWPs in the active BWPs within a preset time period;

Optionally, the processor is further configured to: monitoring the radio link quality of all RLM resources corresponding to the active BWPs or the partial BWPs in the active BWPs together within a predetermined period of time;

Optionally, the processor is further configured to: respectively monitoring the wireless link quality on the RLM resources corresponding to all the active BWPs or the partial BWPs in the active BWPs within a preset time period;

Optionally, the processor is further configured to: reporting a radio link monitoring result to an RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication, and information that the in-sync indication or the out-of-sync indication corresponds to a BWP; or

The processor is further configured to: reporting a radio link monitoring result to an RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication.

Optionally, the processor is further configured to: starting a first timer after receiving N1 consecutive out-of-sync indications of a BWP at an RRC layer of the UE, and determining that the UE has RLF on the BWP when N2 consecutive in-sync indications of the BWP are not received before the first timer times out; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1; or

The processor is further configured to: after receiving N1 consecutive out-of-sync indications of a BWP at an RRC layer of the UE, determining that RLF occurs on the BWP by the UE; determining that the UE resumes connection on the BWP after receiving N2 consecutive synchronization indications for the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs for the entire MCG or SCG, where N1 ≧ 1 and N2 ≧ 1.

Optionally, the transceiver is configured to: when the processor monitors that RLF occurs to a BWP, reporting an RLF report of the BWP to a network side, wherein the RLF report comprises: information of the BWP and a corresponding out-of-sync indication.

Optionally, the RLF report further comprises: the corresponding wireless link monitoring results of other BWPs on the serving cell, and/or the corresponding measurement results.

Optionally, the transceiver is further configured to: when the processor monitors that a BWP recovers connection, reporting a recovery report of the BWP to a network side, wherein the recovery report comprises: information of the BWP and a corresponding synchronization indication.

Optionally, the recovery report further includes the wireless link monitoring results corresponding to the recovered BWP and other available BWPs, and/or the corresponding measurement results.

In a third aspect, there is also provided a user equipment, including: a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the radio link monitoring method as described above.

In a fourth aspect, a computer-readable storage medium is also provided, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the radio link monitoring method as described above.

In a fifth aspect, there is also provided a UE, including:

a first determining module, configured to determine a radio link monitoring RLM resource, where the RLM resource is an RLM resource corresponding to all active partial bandwidths BWPs or a partial BWP in the active BWPs; and

and the monitoring module is used for monitoring the radio link of the RLM resources.

Optionally, the UE further includes:

the first reporting module is used for reporting a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

and a second determining module, configured to determine, according to the radio link monitoring result, that a radio link failure RLF occurs for the BWP, or that an RLF occurs for the master cell group MCG or the secondary cell group SCG.

Optionally, the monitoring module is further configured to: periodically monitoring all the active BWPs or part of the active BWPs by the physical layer of the UE to obtain the wireless link quality of each BWP, and respectively determining the wireless link monitoring result of each BWP according to the wireless link quality; or

The method comprises the steps that wireless link monitoring is carried out on all active BWPs or parts of the active BWPs together periodically through a physical layer of the UE, and a wireless link monitoring result is determined according to the wireless link quality of all the active BWPs or the parts of the active BWPs; or

And respectively carrying out wireless link monitoring on all the active BWPs or part of the active BWPs by the physical layer of the UE to obtain the wireless link quality of each BWP, and determining a wireless link monitoring result according to the wireless link quality of all the active BWPs or the part of the active BWPs.

Optionally, the monitoring module is further configured to: respectively monitoring the radio link quality of all RLM resources corresponding to the active BWPs or part of the active BWPs in a preset time period through the physical layer of the UE;

when the radio link quality of all RLM resources corresponding to a BWP is worse than a configured first out-of-step threshold value Qout, determining that the radio link of the BWP is out-of-step through a physical layer of the UE;

when the radio link quality of any RLM resource corresponding to a BWP is better than a configured first synchronization threshold value Qin, determining the radio link synchronization of the BWP through the physical layer of the UE.

In this way, when a UE side is activated with multiple BWPs in a certain cell requiring RLM, the UE can perform radio link monitoring for each activated BWP or a specific BWP. The problem of how the UE monitors the wireless link under the condition of a plurality of active BWPs is solved. Thus, the UE can trigger the judgment behavior when some BWP or BWPs in multiple active BWPs or the whole cell radio link is abnormal in time.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;

fig. 2 is a flowchart of a radio link monitoring method according to an embodiment of the present invention;

fig. 3 is a second flowchart of a radio link monitoring method according to an embodiment of the present invention;

fig. 4 is a third flowchart of a radio link monitoring method according to an embodiment of the present invention;

FIG. 5 is a fourth flowchart of a wireless link monitoring method according to an embodiment of the present invention;

FIG. 6 is a fifth flowchart of a wireless link monitoring method according to an embodiment of the present invention;

fig. 7 is one of the structural diagrams of a user equipment of the embodiment of the present invention;

fig. 8 is a second block diagram of a ue according to an embodiment of the present invention;

fig. 9 is a third block diagram of a ue according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

For better understanding of the technical solution of the embodiment of the present invention, the following two technical points are introduced first:

(1) introduction to BWP:

in a conventional Long Term Evolution (LTE) system, a cell carrier bandwidth at a network side angle is less than or equal to a UE reception bandwidth of 20MHz, so that the network side always configures the total uplink and downlink bandwidths of a cell to the UE, and the UE can work on the whole cell carrier bandwidth.

In the NR system, the network side carrier bandwidth can be as high as 400MHz, which is much larger than the reception capability of the UE. Therefore, the concept of BWP is introduced, that is, dividing the large bandwidth on the network side into multiple BWPs, configuring one or multiple BWPs to the UE, and activating the partially configured BWPs for uplink and downlink transmission of the UE, where the activated downlink BWP is called active DL BWP and the activated uplink BWP is called active UL BWP. In Release 15(Release 15, R15), only one dl BWP and one UL BWP are allowed to be activated at a time for the UE, and the inactive BWP cannot perform uplink and downlink signaling and data transmission. The base station explicitly changes the activated BWP using physical layer signaling (Downlink Control Information, DCI). In addition, a BWP-inactivity timer (hereinafter referred to as BWP timer) is introduced, and after the BWP timer expires, the UE changes from the active BWP to the default BWP.

(2) Introduction to radio link monitoring:

in NR, a connected UE needs to perform radio link monitoring on a special Cell (including a primary Cell (PCell) in a Master Cell Group (MCG) and a primary Secondary Cell (PSCell) in a Secondary Cell Group (SCG)).

In NR R15, the network side configures the UE with an RLM resource list, which includes the corresponding RLM RS type and the corresponding RLM resource. The connected UE has only one active BWP, and can only perform uplink and downlink signaling and data transmission on the BWP, and perform RLM on the BWP. The UE can determine the frequency positions corresponding to the configured RLM resources according to the configured RLM resource list. Therefore, the connected UE can determine what the corresponding RLM resource is according to some activated BWP by itself, and perform RLM on the corresponding RLM resource.

It should be noted that the RRC layer configures the synchronization threshold Qin, the out-of-synchronization threshold Qout, N310, N311, and T310 timers for the UE.

Wherein N310 represents the maximum number of consecutive out-of-sync (out-of-sync) indications received, which after reaching a maximum number triggers the start of the T310 timer; n311 is used to set the number of maximum consecutive "in-sync" indications that need to be received to stop the T310 timer; t310 timer: when detecting physical layer schemes, the RRC layer of the UE starts a T310 timer, and during the operation of the T310 timer, if the radio link is recovered, the T310 timer is stopped, otherwise, the T310 timer is always operated. The T310 timing is timed out and the radio link is considered to have failed.

The current NR RLM procedure is: the physical layer of the UE periodically evaluates the radio link quality corresponding to the RLM resources required in the previous period. When the Radio link quality corresponding to all the resources in the RLM resources is worse than the configured out-of-synchronization threshold value Qout, the physical layer indicates an out-of-synchronization indication to a Radio Resource Control (RRC) layer; when the radio link quality corresponding to any resource in the RLM resources is better than the configured synchronization threshold Qin, the physical layer indicates a synchronization indication to the RRC layer.

And after the RRC layer at the UE side continuously receives the out-of-step instructions reported by the N310 physical layers, starting a T310 timer. If N311 synchronization indications are not received continuously before the T310 timer expires, the UE is determined to have RLF. If the RLF occurs in the MCG, the UE triggers an RRC connection reestablishment process; if the SCG generates RLF, the UE reports the SCG RLF and the related auxiliary information to the network side.

Since, currently, the connected UE in R15 has only one active BWP. However, in a new generation wireless communication system, a connected UE may need to activate multiple BWPs simultaneously. In this case, how the UE performs radio link detection and subsequent correlation at this time, there is no solution yet.

Embodiments of the present invention are described below with reference to the accompanying drawings. The synchronization indication method and the synchronization indication equipment provided by the embodiment of the invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, an Evolved Long Term Evolution (lte) system, or a subsequent lte communication system. Referring to fig. 1, an architecture diagram of a wireless communication system according to an embodiment of the present invention is shown. As shown in fig. 1, the wireless communication system may include: the network side device 10 and the user equipment, for example, the user equipment is denoted as UE 11, and the UE 11 can communicate with the network side device 10. In practical applications, the connections between the above devices may be wireless connections, and fig. 1 illustrates the connections between the devices by solid lines for convenience and convenience in visual representation.

It should be noted that the communication system may include a plurality of UEs, and the network side device may communicate (transmit signaling or transmit data) with the plurality of UEs.

The network side device provided in the embodiment of the present invention may be a base station, and the network side device may be a commonly used base station, an evolved node base station (eNB), or a network side device in a 5G system (for example, a next generation base station (gNB) or a Transmission and Reception Point (TRP)).

The user equipment provided by the embodiment of the invention can be a Mobile phone, a tablet Computer, a notebook Computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like.

Referring to fig. 2, a flow of a method for monitoring a radio link according to an embodiment of the present invention is shown, and the specific steps are as follows:

step 201: the UE determines RLM resources, wherein the RLM resources are RLM resources corresponding to all activated BWPs or part of the activated BWPs;

for example: when a UE side is activated by a plurality of BWPs in a certain cell needing RLM, the UE determines RLM resources.

It should be noted that all the active BWPs described above are at least two active BWPs. The partial BWPs in the active BWPs may be one or more of all active BWPs. The number of partial BWPs in which BWP is activated is not limited in the embodiments of the present invention.

Step 202: and the UE monitors the radio link of the RLM resource.

That is, in step 202, the UE performs radio link monitoring on all active BWPs or RLM resources corresponding to each BWP in a partial BWP in the active BWPs, where the radio link monitoring may be performed separately or performed together.

In the embodiment of the present invention, the UE performs radio link monitoring on the RLM resource by any one of the following manners:

the first method is as follows: the physical layer of the UE periodically performs radio link monitoring and evaluates the radio link monitoring result for each active BWP or a specific BWP (which may also be referred to as a partial BWP in the active BWP). That is, the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or a part of BWPs in the active BWPs, to obtain the wireless link quality of each BWP, and determines the wireless link monitoring result of each BWP according to the wireless link quality;

specifically, the physical layer of the UE monitors the radio link quality of all the RLM resources corresponding to the active BWPs or the part of the RLM resources in the active BWPs within a predetermined time period; when the radio link quality of all RLM resources corresponding to a BWP is worse than a configured first out-of-step threshold value Qout, the physical layer of the UE determines that the radio link of the BWP is out-of-step; when the radio link quality of any RLM resource corresponding to a BWP is better than a configured first synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization of the BWP.

It should be noted that, in the embodiment of the present invention, the configuration manners of the first out-of-synchronization threshold Qout and the first synchronization threshold Qin are not specifically limited.

Also, it should be noted that the radio link monitoring result in the first mode can indicate that a certain BWP is out-of-synchronization or in-synchronization.

The second method comprises the following steps: the physical layer of the UE periodically performs wireless link monitoring and evaluating the wireless link monitoring result for all active BWPs or specific BWPs (which may also be referred to as partial BWPs in the active BWPs) together, that is, the physical layer of the UE periodically performs wireless link monitoring for all active BWPs or partial BWPs in the active BWPs together, and determines the wireless link monitoring result according to the wireless link quality of all active BWPs or partial BWPs in the active BWPs;

specifically, the physical layer of the UE monitors the radio link quality of all RLM resources corresponding to the active BWPs or the portions of the active BWPs together within a predetermined time period; when the radio link quality of all the activated BWPs or all the RLM resources corresponding to part of the activated BWPs is worse than a configured second threshold out-of-synchronization threshold value Qout, the physical layer of the UE determines that the radio link is out-of-synchronization; and when the radio link quality of any RLM resource corresponding to all the activated BWPs or part of the activated BWPs is better than a configured second threshold synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization.

It should be noted that, in the embodiment of the present invention, the configuration manner of the second out-of-synchronization threshold Qout and the second in-synchronization threshold Qin is not specifically limited.

Similarly, it should be noted that the radio link monitoring result in the second method can indicate that the radio link is out of synchronization or in synchronization.

The third method comprises the following steps: the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or a specific BWP (which may also be referred to as a partial BWP in the active BWP), respectively, but evaluates the wireless link monitoring results together, that is, the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or a partial BWP in the active BWP, obtains the wireless link quality of each BWP, and determines the wireless link monitoring results according to the wireless link quality of all active BWPs or the partial BWPs in the active BWP.

Specifically, the physical layer of the UE monitors the radio link quality on all RLM resources corresponding to the active BWPs or a part of the active BWPs within a predetermined time period; when the radio link quality of all RLM resources corresponding to one BWP is worse than a configured third out-of-step threshold value Qout, the physical layer of the UE determines that the radio link of the BWP is out-of-step; when the radio link quality of any RLM resource corresponding to a BWP is better than a configured third synchronization threshold value Qin, the physical layer of the UE determines the radio link synchronization of the BWP; when the wireless links of all the BWPs are out of synchronization, the physical layer of the UE determines that the wireless links are out of synchronization; when the radio link of any monitored BWP is synchronized, the physical layer of the UE determines the radio link synchronization.

It should be noted that, in the embodiment of the present invention, the configuration manners of the third out-of-synchronization threshold Qout and the third in-synchronization threshold Qin are not specifically limited.

Also, it should be noted that the radio link monitoring result in the third mode can indicate that the radio link is out of synchronization or in synchronization.

In the embodiment of the present invention, when a UE side is activated with multiple BWPs in a certain cell requiring RLM, the physical layer of the UE periodically performs radio link monitoring on each activated BWP or a specific BWP. The problem of how the UE performs wireless link monitoring under the condition of multiple active BWPs is solved. Thus, the UE can trigger the judgment behavior when some BWP or BWPs in multiple active BWPs or the whole cell radio link is abnormal in time.

Referring to fig. 3, a flow of a method for monitoring a radio link according to another embodiment of the present invention is shown, which includes the following specific steps:

step 301: the UE determines RLM resources, wherein the RLM resources are RLM resources corresponding to all activated BWPs or part of the activated BWPs;

It should be noted that the partial BWPs in the active BWPs may be one or more of all active BWPs. The number of partial BWPs in which BWP is activated is not limited in the embodiments of the present invention.

Step 302: the UE monitors a radio link for the RLM resource;

The second method comprises the following steps: the physical layer of the UE periodically performs wireless link monitoring and evaluating the wireless link monitoring result for all active BWPs or specific BWPs (which may also be referred to as partial BWPs in the active BWPs) together, that is, the physical layer of the UE periodically performs wireless link monitoring for all active BWPs or partial BWPs in the active BWPs together to determine the wireless link monitoring result according to the wireless link quality of all active BWPs or partial BWPs in the active BWPs;

The third method comprises the following steps: the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or specific BWPs (which may also be referred to as partial BWPs in the active BWPs), respectively, but evaluates the wireless link monitoring results together, that is, the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or partial BWPs in the active BWPs, respectively, obtains the wireless link quality of each BWP, and determines the wireless link monitoring results according to the wireless link quality of all active BWPs or partial BWPs in the active BWPs.

Step 303: the physical layer of the UE reports a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

for example: corresponding to the first method in step 302, the physical layer of the UE reports the radio link monitoring result to the RRC layer of the UE, where the radio link monitoring result includes: an in-sync indication or an out-of-sync indication, and information (e.g., ID (identification) of the BWP)) corresponding to the BWP;

another example is: corresponding to the second and third modes in step 302, the physical layer of the UE reports the radio link monitoring result to the RRC layer of the UE, and the radio link monitoring result includes: an in-sync indication or an out-of-sync indication.

Step 304: and the RRC layer of the UE determines that RLF occurs to the corresponding BWP or to the MCG or SCG according to the radio link monitoring result.

In the embodiment of the present invention, step 304 may be implemented by any one of the following first, second, and third ways.

The first method is as follows: after receiving N1 continuous out-of-sync indications of BWP, the RRC layer of the UE starts a first timer, and when N2 continuous in-sync indications of BWP are not received before the first timer is overtime, the UE is determined to generate RLF on the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1;

the second method comprises the following steps: after receiving N1 continuous out-of-sync indications of a BWP, the RRC layer of the UE determines that the UE generates RLF on the BWP; determining that the UE resumes connection on the BWP after receiving N2 consecutive synchronization indications for the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1;

the third method comprises the following steps: after receiving the synchronous indication or the out-of-step indication of the physical layer, the RRC layer of the UE starts a T310 timer after continuously receiving out-of-step indications reported by N310 physical layers; when N311 synchronization indications are not received continuously before the T310 timer expires, it is determined that the UE has RLF.

Further, in the first, second, and third manners, when the UE monitors that an RLF occurs in a BWP, the UE reports an RLF report of the BWP to the network side, where the RLF report includes: information of the BWP (e.g., ID of the BWP) and a corresponding out-of-sync indication. Optionally, the RLF report further comprises: radio link monitoring results, and/or measurement results, corresponding to other BWPs on the serving cell.

Further, when the UE monitors that a BWP resumes the connection, the UE reports a resume report of the BWP to the network side, where the resume report includes: the BWP information and the corresponding synchronization indication.

Further, the recovery report further includes the corresponding wireless link monitoring results and/or corresponding measurement results of the recovered BWP and other available BWPs

In the embodiment of the present invention, when a UE side is activated with multiple BWPs in a certain cell requiring RLM, the physical layer of the UE periodically performs radio link monitoring on each activated BWP or a specific BWP. And the physical layer reports the radio link monitoring result to an RRC layer of the UE. The RRC layer of the UE judges that RLF occurs in a BWP or RLF occurs in MCG/SCG based on the radio link monitoring result of the physical layer. The problem of how the UE performs wireless link monitoring under the condition of multiple active BWPs is solved. Therefore, the UE can trigger the judgment and the follow-up action when one or some BWPs in a plurality of activated BWPs or the wireless link of the whole cell is abnormal in time.

In the following examples 1 to 3, it is assumed that a network-side device configures 4 BWPs (including BWP1, BWP2, BWP3, and BWP4) for a specific cell (e.g., a primary cell or a primary secondary cell, etc.) of a UE, where an RLM resource corresponding to BWP1 is denoted as RLM resource1, an RLM resource corresponding to BWP2 is denoted as RLM resource2, an RLM resource corresponding to BWP3 is denoted as RLM resource3, and an RLM resource corresponding to BWP4 is denoted as RLM resource 4.

The network side equipment can configure a common out-of-step threshold value Qout and a common synchronous threshold value Qin for all RLM resources; the network side device can also configure an out-of-synchronization threshold value Qout and a synchronization threshold value Qin for each RLM resource corresponding to the BWP.

Example 1: wireless link monitoring and evaluation is performed for each active BWP or specific BWP respectively:

assume that the network-side device configures an out-of-synchronization threshold Qout and a synchronization threshold Qin for each RLM resource corresponding to the BWP, for example: the RLM resource is that the desynchronization threshold value corresponding to the RLM resource _ i is Qout _ i, and the synchronization threshold value is Qin _ i, wherein i is a positive integer.

Referring to fig. 4, a flow of a method for monitoring a radio link according to another embodiment of the present invention is shown, which includes the following specific steps:

step 401: the UE determines RLM resources;

mode 1: the RLM resource is the RLM resource corresponding to all the active BWPs. For example: a special cell activates 2 BWPs (including BWP1 and BWP2), and the RLM resources of the special cell are { RLM resource1, RLM resource2 }; or

Mode 2: the RLM resource is an RLM resource corresponding to a specific BWP, which corresponds to a partial BWP in the active BWP, i.e. the specific BWP may be one or more primary BWPs in all active BWPs. For example, a special cell on the UE side activates 3 BWPs (including BWP1, BWP2 and BWP3), wherein BWP1 and BWP2 are the main BWPs, then the RLM resources of the special cell are { RLM resource1, RLM resource2 }.

Optionally, the UE determines the out-of-synchronization threshold Qout and the synchronization threshold Qin corresponding to the RLM resource in step 401 according to the configuration of the network side device.

Step 402: the UE periodically carries out wireless link monitoring on the determined RLM resources of each BWP respectively and evaluates the quality of the wireless link respectively to obtain wireless link monitoring results corresponding to the BWPs;

the method specifically comprises the following steps: the physical layer of the UE monitors the radio link quality of the RLM resource _ i corresponding to BWP _ i for a period of time. When the wireless link quality corresponding to all the resources in the RLM resource _ i is worse than the configured out-of-step threshold value Qout _ i of the BWP _ i, determining that the wireless link of the BWP _ i is out-of-step; and when the quality of the wireless link corresponding to any resource in the RLM resource _ i is better than the configured synchronization threshold value Qin _ i of the BWP _ i, determining the wireless link synchronization of the BWP _ i.

For example: the physical layer of the UE monitors the radio link quality of RLM resource1 of BWP1 over a period of time. When the wireless link quality corresponding to all the resources in the RLM resource1 is worse than the configured out-of-synchronization threshold value Qout _1 of the BWP1, it is determined that the wireless link of the BWP1 is out-of-synchronization.

Step 403: the physical layer of the UE reports the radio link monitoring result to the RRC layer of the UE, and the radio link monitoring result comprises the following steps: synchronization indication or out-of-synchronization indication, and information of BWP corresponding to the synchronization indication or out-of-synchronization indication;

for example: when the physical layer of the UE monitors that the wireless link of BWP1 is out of synchronization in step 402, it reports an out-of-synchronization indication and the BWP1 identifier corresponding to the out-of-synchronization indication to the RRC layer of the UE.

Step 404: and the RRC layer of the UE determines the RLF of the corresponding BWP or the RLF of the corresponding MCG or SCG according to the wireless link monitoring result.

Alternatively, step 404 may be implemented in the following manner 1 and manner 2 in the embodiment of the present invention. In the following embodiments, N1, N2, and Timer1 may be preconfigured values, or may be configured values for the UE by the network side device. Similarly, N1, N2, and Timer1 may be the same value for all RLM resources, or different values for different BWPs:

mode 1: after receiving N1(N1 ≧ 1) continuous out-of-sync indications of a BWP, the RRC layer of the UE starts a Timer1, and when not receiving N2(N2 ≧ 1) continuous in-sync indications of the BWP before the Timer1 times out, the UE is determined to generate RLF (Radio Link Failure) on the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG;

for example: in step 403, when the RRC layer of the UE receives the out-of-sync indication of N1 BWPs 1, the RRC layer of the UE starts Timer1, and when the in-sync indication of BWP1 is not received before the Timer1 times out, it determines that the RLF occurs on the BWP 1. It should be noted that the physical layer of the UE may monitor not only BWP1, but only BWP1 monitors RLF.

Mode 2: after receiving N1 continuous (N1 ≧ 1) out-of-sync indications of a BWP, the RRC layer of the UE determines that RLF occurs on the BWP; after receiving N2 consecutive synchronization indications (N2 ≧ 1) for a BWP, it is determined that the UE resumes connection on the BWP. When RLF occurs on all BWPs monitored, the UE determines that RLF occurs for the entire MCG or SCG.

For example: in step 403, when the RRC layer of the UE continuously receives out-of-sync indications of N1 BWPs 1, the UE determines that RLF occurs on BWP 1; when the RRC layer of the UE continuously receives the synchronization indications of N2 BWPs 1, the UE determines to resume the connection at BWP 1.

Step 405: when the UE monitors that RLF occurs to a certain BWP, the UE reports the RLF of the BWP to the network side equipment.

Optionally, the RLF report includes information of the BWP and a corresponding out-of-synchronization indication, and further optionally, the RLF report may further include: the BWP corresponds to the radio link monitoring results and/or corresponding measurement results of other BWPs in the cell.

Optionally, when monitoring that a certain BWP resumes connection, the UE reports a resume report of the BWP to the network side device, where the resume report includes: information of the recovered BWP and a corresponding synchronization indication; further optionally, the recovery report further comprises: the resumed BWP corresponds to the radio link monitoring results and/or corresponding measurement results for other available BWPs on the cell.

It should be noted that only when RLF occurs on all BWPs that need to be monitored, the UE determines that RLF occurs on the whole MCG or SCG, and triggers the behavior of the MCG or SCG after RLF occurs.

Example 2: wireless link detection and evaluation is performed for each active BWP or specific BWP together:

in this example, the synchronization threshold Qout and the out-of-synchronization threshold Qin are configured by the network side device for the UE.

Referring to fig. 5, a flow of a method for monitoring a radio link according to another embodiment of the present invention is shown, which includes the following specific steps:

step 501: the UE side determines RLM resources;

mode 1: the RLM resource is the RLM resource corresponding to all the active BWPs. For example: a special cell activates 2 BWPs (including BWP1 and BWP2), then the RLM resources of the special cell are { RLM resource1, RLM resource2 }; or

Mode 2: the RLM resource is an RLM resource corresponding to a specific BWP, which corresponds to a partial BWP in the active BWP, i.e. the specific BWP may be one or more primary BWPs in all active BWPs. For example: the UE side special cell activates 2 BWPs (including BWP1 and BWP2), wherein BWP1 is the main BWP, and the RLM resource of the special cell is RLM resource 1.

Step 502: the UE periodically monitors the radio link of the determined RLM resources of each BWP together, and evaluates the obtained radio link quality together to obtain a radio link monitoring result;

the method specifically comprises the following steps: the physical layer of the UE monitors the radio link quality of all RLM resources for these BWPs (all active BWPs or a particular BWP) over a period of time. When the radio link quality of all RLM resources corresponding to the BWPs is worse than a configured threshold out-of-step threshold value Qout, determining that the radio links of the BWPs are out-of-step; and when the wireless link quality of any RLM resource corresponding to the BWPs is better than a configured threshold synchronization threshold value Qin, determining the wireless link synchronization of the BWPs.

For example: according to mode 1 in step 501, the physical layer of the UE periodically monitors the radio link quality of RLM resource1, RLM resource 2. When the wireless link quality corresponding to all the resources in RLM resource1 and RLM resource2 of BWP1 and BWP2 is found to be worse than the configured threshold out-of-synchronization threshold value Qout, determining that the wireless links of BWP1 and BWP2 are out-of-synchronization;

for example: according to mode 2 in step 501, the physical layer of the UE periodically monitors the radio link quality of RLM resource1 of BWP 1. When the radio link quality corresponding to any resource on the RLM resource1 is found to be better than the configured threshold synchronization threshold Qin, BWP1 radio link synchronization is determined.

Step 503: the physical layer of the UE reports the radio link monitoring result to the RRC layer of the UE, wherein the radio link monitoring result comprises the following steps: an in-sync indication or an out-of-sync indication.

Step 504: after receiving the synchronization indication or the out-of-synchronization indication of the physical layer, the RRC layer of the UE continues to use the existing RLF decision process, and starts the T310 timer when continuously receiving out-of-synchronization status reports reported by N310 physical layers. When N311 synchronization status reports are not continuously received before the T310 timer expires, it is determined that the UE has RLF.

Example 3: wireless link monitoring is performed for each active BWP or specific BWP, and the monitoring results are evaluated together.

In this example, it is assumed that the network-side device configures an out-of-synchronization threshold Qout and an in-synchronization threshold Qin for each RLM resource corresponding to the BWP, for example: the out-of-step threshold value corresponding to RLM resource _ i is Qout _ i, and the in-step threshold value is Qin _ i.

Referring to fig. 6, a flow of a method for monitoring a radio link according to another embodiment of the present invention is shown, which includes the following specific steps:

step 601: the UE determines the RLM resources:

mode 1: the RLM resource is the RLM resource corresponding to all the active BWPs. For example: a particular cell activates 2 BWPs (including BWP1 and BWP 2). The RLM resource of the special cell is { RLM resource1, RLM resource2 }; or

Mode 2: the RLM resource is an RLM resource corresponding to a specific BWP, which corresponds to a partial BWP in the active BWP, i.e. the specific BWP may be one or more primary BWPs in all active BWPs. For example, a special cell on the UE side activates 2 BWPs (including BWP1 and BWP2), where BWP1 is the primary BWP, and RLM resource of the special cell is { RLM resource1 }.

Step 602: and the physical layer of the UE periodically carries out wireless link monitoring on the determined RLM resources of each BWP respectively, and evaluates the obtained wireless link quality together to obtain a wireless link monitoring result.

The method specifically comprises the following steps: the physical layer of the UE monitors the radio link quality of the RLM resource _ i corresponding to BWP _ i for a period of time. When the wireless link quality corresponding to all the resources in the RLM resource _ i is worse than the configured out-of-step threshold value Qout of the BWP _ i, determining that the wireless link of the BWP _ i is out-of-step; and when the quality of the wireless link corresponding to any resource in the RLM resource _ i is better than the configured synchronization threshold value Qin of the BWP _ i, determining the wireless link synchronization of the BWP _ i. When all the monitored BWPs are out of synchronization, determining that the out of synchronization occurs by a physical layer of the UE; when any monitored BWP is synchronized, the physical layer of the UE determines that synchronization is occurring.

For example: according to the mode 1 in step 601, the physical layer of the UE periodically monitors the radio link quality of RLM resource1 and RLM resource2, respectively. If the quality of any wireless link on the RLM resource1 is found to be better than the configured threshold synchronization threshold value Qin _1, determining the wireless link synchronization of BWP 1; when the radio link quality of RLM resource2 is found to be worse than the configured corresponding out-of-synchronization threshold value Qout _2, the radio link of BWP2 is determined to be out-of-synchronization.

Since the monitored BWP has one radio link out-of-sync and one radio link in-sync, the physical layer of the UE determines that the radio link is in-sync.

For example: according to mode 2 in step 601, the physical layer of the UE periodically monitors the radio link quality of RLM resource1 of BWP 1. When the radio link quality corresponding to any resource in the RLM resource1 is found to be better than the configured synchronization threshold Qin, the radio link synchronization of the BWP1 is determined. Since only BWP1 is monitored, the physical layer of the UE determines the radio link synchronization.

Step 603: and the physical layer of the UE reports the radio link monitoring result to the RRC layer of the UE, wherein the radio link monitoring result comprises a synchronous indication or an out-of-step indication.

Step 604: after receiving the synchronization indication or the out-of-synchronization indication of the physical layer, the RRC layer of the UE continues to use the existing RLF decision process, and starts the T310 timer when continuously receiving the out-of-synchronization indication reported by the N310 physical layers. When N311 synchronization indications are not received continuously before the T310 timer is timed out, the UE is determined to generate RLF.

The embodiment of the present invention further provides a ue, and since the principle of the ue for solving the problem is similar to the method for monitoring the radio link in the embodiment of the present invention, the implementation of the ue may refer to the implementation of the method, and the repetition part is not described again.

Referring to fig. 7, a schematic structural diagram of a user equipment 700 according to an embodiment of the present invention is shown, where the user equipment 700 includes: a processor 701 and a transceiver 702, wherein the processor 701 is configured to: determining a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and the processor 701 is further configured to: and monitoring the radio link of the RLM resources.

In this embodiment of the present invention, optionally, the processor 701 is further configured to: reporting a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

the processor 701 is further configured to: and according to the wireless link monitoring result, determining that the wireless link failure RLF occurs to the corresponding BWP, or determining that the RLF occurs to the main cell group MCG or the auxiliary cell group SCG.

In this embodiment of the present invention, optionally, the processor 701 is further configured to: performing radio link monitoring on the RLM resources by any one of the following methods:

periodically monitoring all the active BWPs or partial BWPs in the active BWPs together with the wireless links, and determining a wireless link monitoring result according to the quality of all the active BWPs or the wireless links;

and periodically monitoring the wireless links of all the active BWPs or the partial BWPs in the active BWPs respectively to obtain the wireless link quality of each BWP, and determining the wireless link monitoring result according to the wireless link quality of all the active BWPs or the partial BWPs in the active BWPs.

In this embodiment of the present invention, optionally, the processor 701 is further configured to: respectively monitoring the wireless link quality of all the RLM resources corresponding to the active BWPs or the partial BWPs in the active BWPs within a preset time period;

In this embodiment of the present invention, optionally, the processor 701 is further configured to: monitoring the radio link quality of all RLM resources corresponding to the active BWPs or the partial BWPs in the active BWPs together within a predetermined period of time;

In this embodiment of the present invention, optionally, the processor 701 is further configured to: respectively monitoring the wireless link quality on the RLM resources corresponding to all the active BWPs or the partial BWPs in the active BWPs within a preset time period;

In this embodiment of the present invention, optionally, the processor 701 is further configured to: reporting a radio link monitoring result to an RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication, and information that the in-sync indication or the out-of-sync indication corresponds to a BWP; or

The processor 701 is further configured to: reporting a radio link monitoring result to an RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication.

In this embodiment of the present invention, optionally, the processor 701 is further configured to: starting a first timer after receiving N1 consecutive out-of-sync indications of a BWP at an RRC layer of the UE, and determining that the UE has RLF on the BWP when N2 consecutive in-sync indications of the BWP are not received before the first timer times out; when RLF occurs on all the monitored BWPs, determining that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1; or

The processor 701 is further configured to: after receiving N1 consecutive out-of-sync indications of a BWP at an RRC layer of the UE, determining that RLF occurs on the BWP by the UE; determining that the UE resumes connection on the BWP after receiving N2 consecutive synchronization indications for the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1; or

The processor 701 is further configured to: after the RRC layer of the UE receives the synchronous indication or the out-of-step indication of the physical layer, and after the out-of-step indications reported by N310 physical layers are continuously received, a T310 timer is started; when N311 synchronization indications are not received continuously before the T310 timer expires, it is determined that RLF occurs for the UE.

In this embodiment of the present invention, optionally, the transceiver 702 is configured to: when the processor 701 monitors that RLF occurs in a BWP, it reports an RLF report of the BWP to a network side, where the RLF report includes information of the BWP and a corresponding out-of-synchronization indication. Optionally, the RLF report further comprises: the radio link monitoring results corresponding to other BWPs on the serving cell, and/or the corresponding measurement results.

In the embodiment of the present invention, optionally, the transceiver 702 is further configured to: when monitoring a BWP recovery connection, the processor 701 reports a recovery report of the BWP to the network side, where the recovery report includes: information of the BWP and a corresponding synchronization indication. Further, the recovery report also contains the wireless link monitoring results corresponding to the recovered BWP and other available BWPs, and/or corresponding measurement results.

The user equipment provided by the embodiment of the present invention may execute the method embodiments described above, and the implementation principle and technical effect are similar, which are not described herein again.

As shown in fig. 8, the user equipment 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, and a user interface 803. The various components in user device 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration, and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr DRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 802 holds the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application program 8022 includes various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.

In the embodiment of the present invention, by calling the program or instruction stored in the memory 802, specifically, the program or instruction stored in the application program 8022, the following steps are implemented when executing: the UE determines a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and the UE performs radio link monitoring on the RLM resources.

Referring to fig. 9, which illustrates a block diagram of a UE900 according to an embodiment of the present invention, the UE900 includes:

a first determining module 901, configured to determine a radio link monitoring RLM resource, where the RLM resource is all active partial bandwidth BWPs or an RLM resource corresponding to a partial BWP in the active BWPs; and

a monitoring module 902, configured to perform radio link monitoring on the RLM resource.

Optionally, with continued reference to fig. 9, the UE900 further includes:

a first reporting module 903, configured to report a radio link monitoring result to a radio resource control RRC layer of the UE;

a second determining module 904, configured to determine, according to the radio link monitoring result, that a radio link failure RLF occurs for the BWP, or determine that an RLF occurs for the master cell group MCG or the secondary cell group SCG.

Optionally, in an embodiment of the present invention, the monitoring module 902 is further configured to:

periodically monitoring all the active BWPs or part of the active BWPs by the physical layer of the UE to obtain the wireless link quality of each BWP, and respectively determining the wireless link monitoring result of each BWP according to the wireless link quality; or

Optionally, the monitoring module 902 is further configured to:

respectively monitoring the radio link quality of all RLM resources corresponding to the active BWPs or part of the active BWPs in a preset time period through the physical layer of the UE;

Optionally, the monitoring module 902 is further configured to:

monitoring, by a physical layer of the UE, radio link quality of RLM resources corresponding to all or part of active BWPs together within a predetermined period of time;

when the radio link quality of all the activated BWPs or all the RLM resources corresponding to part of the activated BWPs is worse than a configured second threshold out-of-synchronization threshold value Qout, determining that the radio link is out-of-synchronization through a physical layer of the UE;

and when the radio link quality of any RLM resource corresponding to all the activated BWPs or part of the activated BWPs is better than a configured second threshold synchronization threshold value Qin, determining the radio link synchronization through the physical layer of the UE.

Optionally, the monitoring module 902 is further configured to: respectively monitoring the radio link quality on the RLM resources corresponding to all the active BWPs or part of the active BWPs in a preset time period through the physical layer of the UE;

when the radio link quality of all RLM resources corresponding to a BWP is worse than a configured third out-of-step threshold value Qout, determining that the radio link of the BWP is out-of-step through a physical layer of the UE;

when the radio link quality of any RLM resource corresponding to a BWP is better than a configured third synchronization threshold value Qin, determining the radio link synchronization of the BWP through a physical layer of the UE;

when the wireless links of all the BWPs are out of synchronization, determining that the wireless links are out of synchronization through a physical layer of the UE;

determining, by a physical layer of the UE, radio link synchronization when radio link synchronization of any of the monitored BWPs is synchronized.

Optionally, the first reporting module 903 is further configured to: reporting a radio link monitoring result to an RRC layer of the UE through a physical layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication, and information that the in-sync indication or the out-of-sync indication corresponds to a BWP; or reporting a radio link monitoring result to an RRC layer of the UE through the physical layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication.

Optionally, the second determining module 904 is further configured to:

starting a first timer after receiving N1 continuous out-of-sync indications of a BWP through an RRC layer of the UE, and determining that the UE generates RLF on the BWP when N2 continuous in-sync indications of the BWP are not received before the first timer is overtime; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1; or

After receiving N1 continuous out-of-sync indications of BWP through an RRC layer of the UE, determining that RLF occurs on the BWP by the UE; determining that the UE resumes connection on the BWP after receiving N2 consecutive synchronization indications for the BWP; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs for the entire MCG or SCG, where N1 ≧ 1 and N2 ≧ 1.

Optionally, the UE900 further includes: a second reporting module 905, configured to report, when the UE monitors that an RLF occurs in a BWP, an RLF report of the BWP to a network side, where the RLF report includes: information of the BWP and a corresponding out-of-sync indication.

Optionally, the UE900 further includes: a third reporting module 906, configured to report a recovery report of BWP to a network side when the UE monitors that a BWP recovers connection, where the recovery report includes: information of the BWP and a corresponding synchronization indication.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

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

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

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

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

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A method of wireless link monitoring, comprising:

the UE monitors the radio link of the RLM resources;

the UE performs radio link monitoring on the RLM resources, and the radio link monitoring comprises the following steps:

the physical layer of the UE periodically carries out wireless link monitoring on all the active BWPs or part of the active BWPs respectively to obtain the wireless link quality of each BWP, and determines a wireless link monitoring result according to the wireless link quality of all the active BWPs or part of the active BWPs;

the physical layer of the UE periodically performs wireless link monitoring on all active BWPs or part of the active BWPs in the active BWPs, respectively, to obtain the wireless link quality of each BWP, and determines a wireless link monitoring result according to the wireless link quality of all active BWPs or part of the active BWPs in the active BWPs, including:

2. The method of claim 1, wherein after the UE performs radio link monitoring on the RLM resources, the method further comprises:

3. The method of claim 2, wherein the reporting, by the physical layer of the UE, the radio link monitoring result to the RRC layer of the UE comprises:

4. The method according to claim 2, wherein the radio resource control layer of the UE determines that RLF occurs for BWP or for MCG or SCG according to the radio link monitoring result, and comprises any one of the following manners:

5. The method of claim 4, further comprising:

6. The method of claim 5, wherein the RLF reporting further comprises: the radio link monitoring results corresponding to other BWPs on the serving cell, and/or the corresponding measurement results.

7. The method of claim 4, further comprising:

8. The method according to claim 7, wherein the recovery report further comprises wireless link monitoring results and/or corresponding measurement results corresponding to the recovered BWP and other available BWPs.

9. A User Equipment (UE), comprising: a processor and a transceiver, wherein the processor is configured to: determining a Radio Link Monitoring (RLM) resource, wherein the RLM resource is all activated partial Bandwidth (BWP) or an RLM resource corresponding to partial BWP in the activated BWP; and

the processor is further configured to: performing radio link monitoring on the RLM resources;

the processor is further configured to: performing radio link monitoring on the RLM resources by:

periodically monitoring wireless links of all the active BWPs or part of the active BWPs respectively to obtain the wireless link quality of each BWP, and determining a wireless link monitoring result according to the wireless link quality of all the active BWPs or part of the active BWPs;

the processor is further configured to: respectively monitoring the wireless link quality on the RLM resources corresponding to all the active BWPs or the partial BWPs in the active BWPs within a preset time period;

10. The UE of claim 9,

the processor is further configured to: reporting a radio link monitoring result to a Radio Resource Control (RRC) layer of the UE;

11. The UE of claim 10, wherein the processor is further configured to: reporting a radio link monitoring result to an RRC layer of the UE, wherein the radio link monitoring result comprises: an in-sync indication or an out-of-sync indication, and information that the in-sync indication or the out-of-sync indication corresponds to a BWP; or

12. The UE of claim 10, wherein the processor is further configured to: starting a first timer after receiving N1 consecutive out-of-sync indications of a BWP at an RRC layer of the UE, and determining that the UE has RLF on the BWP when N2 consecutive in-sync indications of the BWP are not received before the first timer times out; when RLF occurs on all the monitored BWPs, the UE determines that RLF occurs on the whole MCG or SCG, wherein N1 is more than or equal to 1, and N2 is more than or equal to 1; or

13. The UE of claim 12, wherein the transceiver is configured to: when the processor monitors that RLF occurs to a BWP, reporting an RLF report of the BWP to a network side, wherein the RLF report comprises: information of the BWP and a corresponding out-of-sync indication.

14. The UE of claim 13, wherein the RLF report further comprises: the corresponding wireless link monitoring results of other BWPs on the serving cell, and/or the corresponding measurement results.

15. The UE of claim 12, wherein the transceiver is further configured to: when the processor monitors that a BWP recovers connection, reporting a recovery report of the BWP to a network side, wherein the recovery report comprises: information of the BWP and a corresponding synchronization indication.

16. The UE of claim 15, wherein the recovery report further comprises radio link monitoring results and/or corresponding measurement results for the recovered BWP and other available BWPs.

17. A UE, comprising:

a monitoring module, configured to perform radio link monitoring on the RLM resource;

the monitoring module is further to:

the method comprises the steps that wireless link monitoring is carried out on all active BWPs or parts of the active BWPs respectively through a physical layer of the UE periodically to obtain the wireless link quality of each BWP, and the wireless link monitoring result is determined according to the wireless link quality of all the active BWPs or the parts of the active BWPs;

the monitoring module is further to: respectively monitoring the wireless link quality on the RLM resources corresponding to all the active BWPs or the partial BWPs in the active BWPs within a preset time period;

18. The UE of claim 17, wherein the UE further comprises:

19. A user device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the radio link monitoring method according to any of claims 1 to 8.

20. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the radio link monitoring method according to any one of claims 1 to 8.