CN104904293A - Method and apparatus for radio link monitoring - Google Patents
Method and apparatus for radio link monitoring Download PDFInfo
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- CN104904293A CN104904293A CN201380069833.7A CN201380069833A CN104904293A CN 104904293 A CN104904293 A CN 104904293A CN 201380069833 A CN201380069833 A CN 201380069833A CN 104904293 A CN104904293 A CN 104904293A
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- epdcch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
Abstract
The present invention relates to method and apparatus for channel direction information feedback in a heterogeneous system. According to an embodiment of the present invention, a method for radio link monitoring in a user equipment, comprises: estimating downlink radio link quality; comparing the estimated downlink radio link quality with at least an out-of-sync enhanced physical downlink control channel-EPDCCH threshold which denotes a radio link quality level corresponding to a predetermined block error rate of a hypothetical EPDCCH transmission; determining that the radio link is at an out-of-sync status based on at least comparison between the estimated downlink radio link quality and the out-of sync EPDCCH threshold; comparing the estimated downlink radio link quality with at least an in-sync EPDCCH threshold which denotes a radio link quality level corresponding to a predetermined block error rate of the hypothetical EPDCCH transmission; determining that the radio link is at an in-sync status based on at least comparison between the estimated downlink radio link quality and the in-sync EPDCCH threshold; indicating to higher layers the determined status of the radio link. The embodiments of the present invention further relate to corresponding user equipment and computer program product.
Description
Technical field
Relate generally to wireless communication system of the present invention, relates to the method and apparatus monitored for radio link at subscriber equipment place particularly.
Background technology
In third generation partner program (3GPP), specify that radio link monitors that (RLM) process is to monitor the downlink radio link quality of Serving cell based on cell specific reference signal (CRS) for subscriber equipment (UE).
In 3GPP TS 36.213 and 3GPP TS 36.133, describe behavior and the detailed process of the UE in RLM, 3GPP TS 36.213 and 3GPP TS 36.133 is the example of relevant 3GPP standard and its full content is incorporated herein by reference.
According to existing standard, UE is by estimating down-ward link radio link quality, and its (out-of-sync) threshold value Qout and PDCCH asynchronous with physical downlink control channel (PDCCH) synchronous (in-sync) threshold value Qin compared, the asynchronous threshold value Qout of PDCCH and PDCCH synchronization threshold Qin represents the radio link quality level of such as 10% Block Error Rate and 2% Block Error Rate corresponding to hypothesis PDCCH transmission respectively.
Enhancing physical control channel (EPDCCH) is the new job in 3GPP Long Term Evolution senior (LET-A) version 11.RLM will be affected to the introducing of EPDCCH.
Such as, when the EPDCCH design of up-to-date agreement, in the subframe configured for EPDCCH, UE should monitor the specific search volume of UE (USS) and on PDCCH, monitor public search space (CSS) on EPDCCH.As a result, UE continues to decode CSS in traditional PD CCH.These comprise common downlink control information (DCI), its carrying system information, paging information, be target initial access signaling and the power control signal of one group of UE or all UE in community.But LTE version 10 standard only defines and monitor CSS and USS in PDCCH for RLM.These correspond to EPDCCH be not configured and the behavior of version 10 by situation about deferring to, wherein the UE of USS and CSS decoding is formed to the PDCCH Block Error Rate of hypothesis PDCCH transmission.
Therefore, desirably provide a kind of in a user device for the solution of radio link supervision for the scene of disposing the new EPDCCH introduced.
Summary of the invention
In order to solve the problem of prior art, one or more method and apparatus embodiment object according to the present invention is to provide a kind of in a user device for the solution of radio link supervision for the scene of disposing the new EPDCCH introduced.
According to an aspect of the present invention, The embodiment provides a kind of in a user device for radio link monitor method.The method comprises: estimating down-ward link radio link quality; Relatively more estimated downlink radio link quality and at least asynchronous enhancing physical downlink control channel-EPDCCH threshold value, described asynchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits; At least determine that described radio link is in asynchronous state based on comparing between estimated downlink radio link quality with asynchronous EPDCCH threshold value; Relatively more estimated downlink radio link quality and at least synchronous EPDCCH threshold value, described synchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that the described EPDCCH of hypothesis transmits; At least based on relatively determining that described radio link is in synchronous regime between estimated downlink radio link quality with described synchronous EPDCCH threshold value; And the state of determined radio link is indicated to higher level.
According to a further aspect in the invention, The embodiment provides a kind of device monitored for radio link.This device comprises: estimation unit, is configured to estimating down-ward link radio link quality; First comparing unit, be configured to relatively more estimated downlink radio link quality and at least asynchronous enhancing physical downlink control channel-EPDCCH threshold value, described asynchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits; First determining unit, is configured at least determine that described radio link is in asynchronous state based on comparing between estimated downlink radio link quality with described asynchronous EPDCCH threshold value; Second comparing unit, be configured to relatively more estimated downlink radio link quality and at least synchronous EPDCCH threshold value, described synchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that the described EPDCCH of hypothesis transmits; Second determining unit, is configured at least based on relatively determining that described radio link is in synchronous regime between estimated downlink radio link quality with described synchronous EPDCCH threshold value; And indicating member, be configured to the state indicating determined radio link to higher level.
According to additional aspects of the present invention, The embodiment provides a kind of subscriber equipment.This subscriber equipment comprises the device monitored for radio link one of according to various embodiments of the present invention.
Accompanying drawing explanation
Set forth the inventive features being regarded as characteristic of the present invention in the dependent claims.But, read the following detailed description to exemplary embodiment by reference to accompanying drawing, by the present invention may be better understood, its Implementation Modes, other objects, features and advantages, wherein in the accompanying drawings:
Fig. 1 schematically illustrates according to an embodiment of the invention in a user device for the flow chart of the method for radio link supervision;
Fig. 2 schematically illustrates the block diagram of the device monitored for radio link according to an embodiment of the invention;
Fig. 3 schematically illustrates the block diagram of subscriber equipment according to an embodiment of the invention.
Embodiment
Hereinafter, embodiments of the invention will be described with reference to the drawings.In the following description, many details are illustrated so that comprehend the present invention.But, it will be apparent to one skilled in the art that implementation of the present invention can not have these details.In addition, be to be understood that the present invention is not limited to as specific embodiment described here.On the contrary, any combination in any of following characteristics and element can be regarded as implementing and putting into practice the present invention, and whether relates to different embodiments from them and have nothing to do.Thus, following aspect, feature, embodiment and advantage just for illustration of property object, and are not appreciated that element or the restriction of claims, unless clear stipulaties in addition in the claims.
Embodiments of the invention relate according to LTE version 11 or more operate wireless electricity link monitoring in a user device in the scene that is configured EPDCCH of Advanced Edition.
According to one or more embodiment of the present invention, novel is performed based at least one hypothesis EPDCCH by UE with creationary RLM.In the scene of traditional PD CCH used in combination and EPDCCH, the RLM according to one or more embodiment is performed together with hypothesis PDCCH based on hypothesis EPDCCH by UE.Disposing in the scene of EPDCCH individually, the RLM according to one or more embodiment is only performed based on hypothesis EPDCCH by UE.
With reference to figure 1-Fig. 3, various embodiment of the present invention will be described in detail.
Fig. 1 schematically illustrates according to embodiments of the invention flow chart for the method for radio link supervision in UE.
In step s 110, estimating down-ward link radio link quality is carried out by UE based on the reference signal that the base station by the serving BS of UE, i.e. main plot is transmitted in physical layer.
In one or more embodiment of the present invention, reference signal comprises cell specific reference signal (CRS).Radio link quality can be estimated based on LTE version 8,9 CRS identical with 10.In other embodiments one or more of the present invention, reference signal can also comprise configurable reference signal, and it can be channel state information reference signals (CSI-RS), demodulated reference signal (DMRS) or other suitable configurable reference signal any or its any suitable combination.
In the step s 120, by the downlink radio link quality of estimation and at least asynchronous EPDCCH threshold value Q
out_EPDCCHcompare.Q
out_EPDCCHrepresent the radio link quality level of the predetermined Block Error Rate corresponding to hypothesis EPDCCH transmission.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.
In step s 130, which, at least radio link can be defined as be in asynchronous state based on the comparative result of step S120.
In step S140, by the downlink radio link quality of estimation and at least synchronous EPDCCH threshold value Q
in_EPDCCHcompare.Q
in_EPDCCHrepresent the radio link quality level of the predetermined Block Error Rate corresponding to hypothesis EPDCCH transmission.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to and such as define according to the Block Error Rate (that is, 2%) of the hypothesis PDCCH of 3GPP LTE version 10, or can redefine according to concrete system performance requirements.In some embodiments of the invention, Q
in_EPDCCHpreferably be different from Q
out_EPDCCH.
In step S150, radio link can be defined as being in synchronous regime by the comparative result at least based on step S140.
In step S160, the state of determined radio link can be indicated to higher level from the physical layer of UE.
One or more embodiment of the present invention can be implemented in such scene, and wherein in some subframes, UE needs to monitor both PDCCH and EPDCCH.Such as, in 3GPP LTE-A, arrange radio resource control (RRC) signaling to the subframe indicating UE to need to monitor USS on EPDCCH.That is, in some subframes, UE needs to monitor USS on EPDCCH, and UE needs to monitor USS on PDCCH in other subframe.For CSS, in all subframes, UE always monitors on PDCCH.
In such scene, traditional C RS may be used for CSS and traditional PD CCH USS and decodes, and DMRS is used to EPDCCH USS decodes.Although the decoding of EPDCCH still can reuse based on DMRS, RLM operation the existing CRS operated for traditional PD CCH RLM.Therefore, in an embodiment of the present invention, radio link quality is (S110) that estimate based on the CRS for traditional PD CCH.Measurement based on CRS at least has the following advantages:
-ensure that the performance of RLM, because have highdensity CRS in both frequency-domain and time-domains;
-less effort and the limited impact on UE behavior are needed for specification.
In such scene, first, UE needs the radio link quality RLQ estimated, such as compares (S120 based on the Signal Interference and Noise Ratio (SINR) of CRS measurement with synchronous or nonsynchronous PDCCH CSS threshold value, S140), because the failure of CSS can cause for the main DCI of pertinent system information decoding failure etc.With nonsynchronous situation exemplarily, if hypothesis CSS failure (that is, RLQ<Q
out_PDCCH_CSS), then announce radio link failure (RLF), and no matter USS still derives from EPDCCH from PDCCH.On the contrary, if hypothesis CSS is by (that is, RLQ>Q
out_PDCCH_CSS), then only when both PDCCH USS and EPDCCH USS are failed, just should announce RLF.This is because when in PDCCH USS or EPDCCH USS only one failed time, the scheduling of UE alternatively can be carried by other USS.
As set forth above, according to embodiments of the invention, at the asynchronous EPDCCH threshold value Q of the relatively middle application of S120
out_EPDCCHcan be asynchronous EPDCCH USS threshold value Q
out_EPDCCH_USS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated downlink radio link quality RLQ is less than asynchronous PDCCH CSS threshold value Q
out_PDCCH_CSS(it represents the radio link quality level corresponding with supposing predetermined Block Error Rate that PDCCH CSS transmits), if or estimated downlink radio link quality RLQ be less than asynchronous EPDCCH USS threshold value Q
out_EPDCCH_USSand be less than asynchronous PDCCH USS threshold value Q
out_PDCCH_USS(it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits), then radio link can be determined that (S130) is for being in asynchronous state.
In a word, announce that the new UE behavior (that is, being in asynchronous state) of RLF is:
As (RLQ<Q
out_PDCCH_CSS) or { (RLQ<Q
out_PDCCH_USS) and (RLQ<Q
out_EPDCCH_USS) (1) time.
According to embodiments of the invention, at the synchronous EPDCCH threshold value Q of the relatively middle application of S140
in_EPDCCHcan be synchronous EPDCCH USS threshold value Q
in_EPDCCH_USS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated downlink radio link quality RLQ is greater than synchronous PDCCH CSS threshold value Q
in_PDCCH_CSS(it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits), and if while estimated downlink radio link quality RLQ be greater than synchronous EPDCCH USS threshold value Q
in_EPDCCH_USSor be greater than synchronous PDCCH USS threshold value Q
in_PDCCH_USS(it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits), then radio link can be determined that (S150) is for being in synchronous regime.
In a word, estimate that the new UE behavior of synchronous regime is:
As (RLQ>Q
in_PDCCH_CSS) and { (RLQ>Q
in_PDCCH_USS) or (RLQ>Q
in_EPDCCH_USS) (2) time.
One or more embodiment of the present invention can need to implement in the scene of the independent EPDCCH of supervision at UE.
In order to the feature supporting some new in future version, such as new carrier type and little community strengthen, and will support independent EPDCCH, this means for some affined subframes or for all subframes, both CSS and USS are carried by EPDCCH.Depend on the acquisition to accurate CSI feedback, both distributed EPDCCH USS and localization EPDCCH USS are supported.Expection EPDCCH CSS transmits to guarantee robustness, especially for initially accessing the period in a distributed way.Because the dominant role of CSS as mentioned above and the preferably localization transmission performance compared with distributed transmission make UE monitor radio link situation based on hypothesis EPDCCH CSS completely.EPDCCH can only transmit in some affined subframes or in all subframes.
When some affined subframes transmitting independent EPDCCH and transmit traditional PD CCH in other subframe, according to embodiments of the invention, at the asynchronous EPDCCH threshold value Q of the relatively middle application of S120
out_EPDCCHcan be asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated radio link quality RLQ is less than asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSSand estimated radio link quality RLQ is less than asynchronous PDCCH threshold value Q
out_PDCCH(it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits), then radio link can be determined that (S130) is for being in asynchronous state.In this embodiment, because the measurement based on CRS is available, so radio link quality RLQ (S110) can be estimated based on CRS.
In a word, announce that the UE behavior (that is, being in asynchronous state) of RLF is:
As (RLQ<Q
out_PDCCH) and (RLQ<Q
out_EPDCCH_CSS) (3) time.
According to embodiments of the invention, at the synchronous EPDCCH threshold value Q of the relatively middle application of S140
in_EPDCCHcan be synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated radio link quality RLQ is greater than synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSSor estimated radio link quality RLQ is greater than synchronous PDCCH threshold value Q
in_PDCCH(it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits), then radio link can be determined that (S150) is for being in synchronous regime.In this embodiment, because the measurement based on CRS is available, so radio link quality RLQ (S110) can be estimated based on CRS.
In a word, estimate that the UE behavior of synchronous regime is:
As (RLQ>Q
in_PDCCH) or (RLQ>Q
in_EPDCCH_CSS) (4) time.
When all subframes transmitting independent EPDCCH and there is not the traditional PD CCH of configuration, according to embodiments of the invention, at the asynchronous EPDCCH threshold value Q of the relatively middle application of S120
out_EPDCCHcan be asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated radio link quality RLQ is less than asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSS, then radio link can be determined that (S130) is for being in asynchronous state.
In a word, announce that the UE behavior (that is, being in asynchronous state) of RLF is:
Work as RLQ<Q
out_EPDCCH_CSS(5) time.
According to embodiments of the invention, at the synchronous EPDCCH threshold value Q of the relatively middle application of S140
in_EPDCCHcan be synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.If estimated radio link quality RLQ is greater than synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSS, then radio link can be determined that (S150) is for being in synchronous regime.
In a word, estimate that the UE behavior of synchronous regime is:
Work as RLQ>Q
in_EPDCCH_CSS(6) time.
According to the availability of traditional C RS, (S110) radio link quality RLQ can be estimated based on CRS or not based on CRS.In implementation, when traditional C RS is unavailable or can not reflect real radio link situation exactly based on the measurement of CRS, such as in the-ID CoMP scene of shared community, (S110) expression formula 5 can be estimated based on configurable reference signal) and 6) in radio link quality RLQ, wherein configurable reference signal can be CSI-RS, DMRS or other suitable configurable reference signal any or its any suitable combination.
Illustrate in detail the process according to one or more embodiment of the present invention with reference to figure 1.It is only exemplary for describing above it should be noted that, is not intended to limit the invention.In other embodiments of the invention, the method can have more or less or different steps, and to be numbered step be only to make description more concisely and clearer, is not strictly limit the order between each step; And the order of step can be different from this description.Such as, in certain embodiments, above, two covers compare and can perform more effectively to determine the state of radio link concomitantly and concurrently with determining step.The specific embodiment of each step can be different from this description.All these variants fall within the spirit and scope of the present invention.
Fig. 2 schematically illustrates the block diagram of the device monitored for radio link according to an embodiment of the invention.
As shown in Figure 2, the device 200 monitored for radio link comprises estimation unit 210, comparing unit 220-1,220-2, determining unit 230-1,230-2 and indicating member 240.
The reference signal that estimation unit 210 is configured to transmit based on the serving BS by UE carrys out estimating down-ward link radio link quality, can implement the device 200 monitored for radio link in described UE.In one or more embodiment of the present invention, reference signal can comprise CRS.In other embodiments one or more of the present invention, reference signal can also comprise configurable reference signal, and it can be selected from configurable reference signal group, and described configurable reference signal group comprises: channel state information reference signals; Demodulated reference signal.
Comparing unit 220-1 and 220-2 is configured to compare estimated radio link quality and predetermined threshold respectively.As shown in the example of Fig. 2, comparing unit 220-1 is configured to relatively more estimated downlink radio link quality and at least asynchronous EPDCCH threshold value Q
out_EPDCCH, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.And comparing unit 220-2 is configured to relatively more estimated downlink radio link quality and at least synchronous EPDCCH threshold value Q
in_EPDCCH, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.In some embodiments of the invention, Q
in_EPDCCHpreferably be different from Q
out_EPDCCH.
Determining unit 230-1 and 230-2 is configured to the state determining radio link respectively based on the output from comparing unit 220-1 and 220-2.As shown in the example of Fig. 2, the comparative result determination radio link that determining unit 230-1 is configured to unit 220-1 is based on the comparison in asynchronous state, and the comparative result determination radio link that determining unit 230-2 is configured to unit 220-2 is based on the comparison in synchronous regime.
Indicating member 240 is configured to the state of instruction determined radio link among determining unit 230-1 and 230-2 from physical layer to higher level.
According to embodiments of the invention, the asynchronous EPDCCH threshold value Q applied in comparing unit 220-1
out_EPDCCHcan be asynchronous EPDCCH USS threshold value Q
out_EPDCCH_USS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, determining unit 230-1 can be configured to meet estimated downlink radio link quality RLQ at the comparative result of comparing unit 220-1 and be less than asynchronous PDCCH CSS threshold value Q
out_PDCCH_CSSwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits), or be less than asynchronous EPDCCH USS threshold value Q at estimated downlink radio link quality RLQ
out_EPDCCH_USSand be less than asynchronous PDCCH USS threshold value Q
out_PDCCH_USSwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits), determine that radio link is in asynchronous state.
According to embodiments of the invention, the synchronous EPDCCH threshold value Q applied in comparing unit 220-2
in_EPDCCHcan be synchronous EPDCCH USS threshold value Q
in_EPDCCH_USS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, determining unit 230-2 can be configured to meet estimated downlink radio link quality RLQ at the comparative result of comparing unit 220-2 and be greater than synchronous PDCCH CSS threshold value Q
in_PDCCH_CSSwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits), and be greater than synchronous EPDCCH USS threshold value Q at estimated downlink radio link quality RLQ simultaneously
in_EPDCCH_USSor be greater than synchronous PDCCH USS threshold value Q
in_PDCCH_USSwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that the PDCCH USS of hypothesis transmits), determine that radio link is in synchronous regime.
According to embodiments of the invention, the asynchronous EPDCCH threshold value Q applied in comparing unit 220-1
out_EPDCCHcan be asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, determining unit 230-1 can be configured to meet estimated radio link quality RLQ at the comparative result of comparing unit 220-1 and be less than asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSSand estimated radio link quality RLQ is less than asynchronous PDCCH threshold value Q
out_PDCCHwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits), determine that radio link is in asynchronous state.In this embodiment, because the measurement based on CRS is available, so estimation unit 210 can be configured to estimate radio link quality RLQ based on CRS.
According to embodiments of the invention, the synchronous EPDCCH threshold value Q applied in comparing unit 220-2
in_EPDCCHcan be synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, determining unit 230-2 can be configured to meet estimated radio link quality RLQ at the comparative result of comparing unit 220-2 and be greater than synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSSor estimated radio link quality RLQ is greater than synchronous PDCCH threshold value Q
in_PDCCHwhen (it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits), determine that radio link is in synchronous regime.In this embodiment, because the measurement based on CRS is available, so estimation unit 210 can be configured to estimate radio link quality RLQ based on CRS.
According to embodiments of the invention, the asynchronous EPDCCH threshold value Q applied in comparing unit 220-1
out_EPDCCHcan be asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 10%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, if the comparative result that determining unit 230-1 can be configured to comparing unit 220-1 meets estimated radio link quality RLQ be less than asynchronous EPDCCH CSS threshold value Q
out_EPDCCH_CSSthen determine that radio link is in asynchronous state.
According to embodiments of the invention, the synchronous EPDCCH threshold value Q applied in comparing unit 220-2
in_EPDCCHcan be synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSS, it represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits.Those skilled in the art can recognize that the explicit value of Block Error Rate can be similar to the Block Error Rate (that is, 2%) such as transmitted according to the hypothesis PDCCH of 3GPP LTE version 10 and define, or can redefine according to concrete system performance requirements.Like this, if the comparative result that determining unit 230-2 can be configured to comparing unit 220-2 meets estimated radio link quality RLQ be greater than synchronous EPDCCH CSS threshold value Q
in_EPDCCH_CSSthen determine that radio link is in synchronous regime.
According to the availability of traditional C RS, estimation unit 210 can estimate radio link quality RLQ based on CRS or not based on CRS.In implementation, when traditional C RS is unavailable or can not reflect real radio link situation exactly based on the measurement of CRS, estimation unit 210 can be configured to estimate radio link quality RLQ based on configurable reference signal, and wherein configurable reference signal can be CSI-RS, DMRS or other suitable configurable reference signal any or its any suitable combination.
Fig. 3 schematically shows the simplified block diagram of subscriber equipment according to an embodiment of the invention.
Generally speaking, the various embodiments of UE 300 can include but not limited to, the image capture device of cell phone, the PDA with wireless communication ability, portable computer, the such as digital camera with wireless communication ability with wireless communication ability and so on, have the game station of wireless communication ability and combine the portable unit of combination or the terminal of such function.
UE 300 is adapted between its serving BS, perform transmission via its antenna 350.
UE 300 comprises data processor (DP) 310, is coupled to/is embedded in the memory (MEM) 320 in DP 310 and aerial array 350 is coupled to the suitable RF reflector TX/ receiver RX module 340 of DP 310.RF TX/RX module 340 is for the two-way wireless communication with at least one base station.MEM 320 storage program (PROG) 330.
Suppose that PROG 330 comprises program command according to an exemplary embodiment of the present invention, described program command makes UE 300 to perform RLM when being performed by DP 310, as discussed in the operating process of the subscriber equipment as shown in herein by Fig. 1.
MEM 320 can be any type being suitable for local technical environment, and any suitable data storing technology can be used to realize, as non-limiting example, the memory devices of MEM 320 such as based semiconductor, magnetic storage device and system, optical memory devices and system, read-only storage and removable memory.Although illustrated an only MEM in UE 300, some memory cells different physically can be there is in UE 300.
DP 310 performs as with reference to any required calculating described by figure 1 and Fig. 2.DP 310 can be any type being suitable for local technical environment, and can comprise all-purpose computer, special-purpose computer, microprocessor, DSP and one or more of based in the processor of polycaryon processor framework as non-limiting example.
According to embodiments of the invention, subscriber equipment 300 comprises the device (not shown in Fig. 3) monitored for radio link.Can recognize, the function for the device of radio link supervision can be realized by one or more suitable module of subscriber equipment 700 as described above.
Generally speaking, various exemplary embodiment can adopt hardware or specific purposes circuit, software, logic or its any combination to realize.Such as, some aspects can adopt hardware to realize, and other side can adopt and can be realized by the firmware of controller, microprocessor or other computing equipment execution or software, but the present invention is not limited to this.Although by the various aspects of exemplary embodiment of the present invention diagram and block diagram and signaling diagram can be described as, but should understand better, these frames described herein, device, system, technology or method can adopt (as non-limiting example) hardware, software, firmware, special circuit or logic, common hardware or controller or other computing equipment or its some combinations to realize.
Like this, should recognize, at least some aspect of exemplary embodiment of the present invention can adopt the various parts of such as integrated circuit (IC) chip and module and so on to put into practice.As known in the art, the design of integrated circuit is supermatic process substantially.
The present invention can also adopt the method that comprises and can realize describing herein and can embody by computer program to perform the method when being loaded into computer system.
Specifically illustrate with reference to preferred embodiment and explain the present invention.Those skilled in the art are to be understood that and in form and details, can make various change to it when without departing from the spirit and scope of the present invention.
Claims (17)
1., in a user device for the method that radio link monitors, comprising:
Estimating down-ward link radio link quality;
Estimated downlink radio link quality and at least asynchronous enhancing physical downlink control channel-EPDCCH threshold value are compared, described asynchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits;
At least determine that described radio link is in asynchronous state based on comparing between estimated downlink radio link quality with described asynchronous EPDCCH threshold value;
Estimated downlink radio link quality compared with at least synchronous EPDCCH threshold value, described synchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that the described EPDCCH of hypothesis transmits;
At least based on relatively determining that described radio link is in synchronous regime between estimated downlink radio link quality with described synchronous EPDCCH threshold value;
To the state of the determined described radio link of higher level instruction.
2. method according to claim 1, wherein
Described asynchronous EPDCCH threshold value is the specific search volume of asynchronous EPDCCH UE-USS threshold value, and described asynchronous EPDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits, and
The described step determined comprises: if estimated downlink radio link quality is less than described asynchronous EPDCCH USS threshold value and be less than asynchronous PDCCH USS threshold value, if or estimated downlink radio link quality is less than asynchronous PDCCH public search space-CSS-threshold value, then determine that described radio link is in asynchronous state, wherein said asynchronous PDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits, described asynchronous PDCCH public search space-CSS-threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits.
3. method according to claim 1 and 2, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH USS threshold value, and described synchronous EPDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits, and
The described step determined comprises: if estimated downlink radio link quality is greater than described synchronous EPDCCH USS threshold value or is greater than synchronous PDCCH USS threshold value, if and estimated downlink radio link quality is greater than synchronous PDCCH CSS threshold value simultaneously, then determine that described radio link is in synchronous regime, wherein said synchronous PDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits, described synchronous PDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits.
4. method according to claim 1, wherein
Described asynchronous EPDCCH threshold value is asynchronous EPDCCH CSS threshold value, and described asynchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
The described step determined comprises: if estimated radio link quality is less than described asynchronous EPDCCH CSS threshold value and estimated radio link quality is less than asynchronous PDCCH threshold value, then determine that described radio link is in asynchronous state, described asynchronous PDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits.
5. method according to claim 1, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH CSS threshold value, and described synchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
The described step determined comprises: if estimated radio link quality is greater than described synchronous EPDCCH CSS threshold value or estimated radio link quality is greater than synchronous PDCCH threshold value, then determine that described radio link is in synchronous regime, wherein said synchronous PDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits.
6. method according to claim 1, wherein
Described asynchronous EPDCCH threshold value is asynchronous EPDCCH CSS threshold value, and described asynchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
The described step determined comprises: if estimated radio link quality is less than described asynchronous EPDCCH CSS threshold value, then determine that described radio link is in asynchronous state.
7. method according to claim 1, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH CSS threshold value, and described synchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
The described step determined comprises: if estimated radio link quality is greater than described synchronous EPDCCH CSS threshold value, then determine that described radio link is in synchronous regime.
8. the method according to claim 6 or 7, wherein
Estimate described radio link quality based on configurable reference signal, described configurable reference signal can be selected from configurable reference signal group, and described configurable reference signal group comprises:
Channel state information reference signals;
Demodulated reference signal.
9., for the device that radio link monitors, comprising:
Estimation unit, is configured to estimating down-ward link radio link quality;
First comparing unit, be configured to estimated downlink radio link quality and at least asynchronous enhancing physical downlink control channel-EPDCCH threshold value to compare, described asynchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH transmits;
First determining unit, is configured at least determine that described radio link is in asynchronous state based on comparing between estimated downlink radio link quality with described asynchronous EPDCCH threshold value;
Second comparing unit, be configured to estimated downlink radio link quality to compare with at least synchronous EPDCCH threshold value, described synchronous EPDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that the described EPDCCH of hypothesis transmits;
Second determining unit, is configured at least based on relatively determining that described radio link is in synchronous regime between estimated downlink radio link quality with described synchronous EPDCCH threshold value;
Indicating member, is configured to the state to the determined described radio link of higher level instruction.
10. device according to claim 9, wherein
Described asynchronous EPDCCH threshold value is the specific search volume of asynchronous EPDCCH UE-USS threshold value, and described asynchronous EPDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits, and
Described first determining unit is configured to, if estimated downlink radio link quality is less than asynchronous EPDCCH USS threshold value and be less than asynchronous PDCCH USS threshold value, if or estimated downlink radio link quality is less than asynchronous PDCCH public search space-CSS-threshold value, then determine that described radio link is in asynchronous state, wherein said asynchronous PDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits, described asynchronous PDCCH public search space-CSS-threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits.
11. devices according to claim 9 or 10, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH USS threshold value, and described synchronous EPDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH USS transmits, and
Described second determining unit is configured to, if estimated downlink radio link quality is greater than described synchronous EPDCCH USS threshold value or is greater than synchronous PDCCH USS threshold value, if and estimated downlink radio link quality is greater than synchronous PDCCH CSS threshold value simultaneously, then determine that described radio link is in synchronous regime, wherein said synchronous PDCCH USS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH USS transmits, described synchronous PDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH CSS transmits.
12. devices according to claim 9, wherein
Described asynchronous EPDCCH threshold value is asynchronous EPDCCH CSS threshold value, and described asynchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
Described first determining unit is configured to, if estimated radio link quality is less than described asynchronous EPDCCH CSS threshold value and estimated radio link quality is less than asynchronous PDCCH threshold value, then determine that described radio link is in asynchronous state, wherein said asynchronous PDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits.
13. devices according to claim 9, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH CSS threshold value, and described synchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
Described second determining unit is configured to, if estimated radio link quality is greater than described synchronous EPDCCH CSS threshold value or estimated radio link quality is greater than synchronous PDCCH threshold value, then determine that described radio link is in synchronous regime, wherein said synchronous PDCCH threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis PDCCH transmits.
14. devices according to claim 9, wherein
Described asynchronous EPDCCH threshold value is asynchronous EPDCCH CSS threshold value, and described asynchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
Described first determining unit is configured to, if estimated radio link quality is less than described asynchronous EPDCCH CSS threshold value, then determines that described radio link is in asynchronous state.
15. devices according to claim 9, wherein
Described synchronous EPDCCH threshold value is synchronous EPDCCH CSS threshold value, and described synchronous EPDCCH CSS threshold value represents the radio link quality level corresponding with the predetermined Block Error Rate that hypothesis EPDCCH CSS transmits, and
Described second determining unit is configured to, if estimated radio link quality is greater than described synchronous EPDCCH CSS threshold value, then determines that described radio link is in synchronous regime.
16. devices according to claim 15 or 14, wherein
Described estimation unit is configured to estimate described radio link quality based on configurable reference signal, and described configurable reference signal can be selected from configurable reference signal group, and described configurable reference signal group comprises:
Channel state information reference signals;
Demodulated reference signal.
17. 1 kinds of subscriber equipmenies, comprise according to the device monitored for radio link in claim 9-16 described in any one.
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| PCT/CN2013/070248 WO2014107847A1 (en) | 2013-01-09 | 2013-01-09 | Method and apparatus for radio link monitoring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018228045A1 (en) * | 2017-06-16 | 2018-12-20 | 电信科学技术研究院有限公司 | Radio link monitoring method and apparatus |
| CN109644356A (en) * | 2018-02-12 | 2019-04-16 | Oppo广东移动通信有限公司 | The method and apparatus for transmitting information |
| CN111144201A (en) * | 2019-11-13 | 2020-05-12 | 创达特（苏州）科技有限责任公司 | Signal pattern recognition method and device |
| CN113785509A (en) * | 2019-05-01 | 2021-12-10 | 苹果公司 | Radio link monitoring beam management in NR for URLLC |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2020065779A1 (en) * | 2018-09-26 | 2021-09-24 | 株式会社Ｎｔｔドコモ | User device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
| US20110263245A1 (en) * | 2008-11-04 | 2011-10-27 | Ntt Docomo, Inc. | Mobile station and mobile communication method |
| CN102355338A (en) * | 2011-08-11 | 2012-02-15 | 电信科学技术研究院 | Method and device for transmitting channel information |
| US20120108177A1 (en) * | 2010-10-29 | 2012-05-03 | Samsung Electronics Co., Ltd. | Apparatus and method for channel measurement in radio link monitoring in a wireless network |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101277509B (en) * | 2007-03-26 | 2012-10-10 | 展讯通信（上海）有限公司 | Method for calculating synchronous step-out threshold as well as method and device adjudging synchronous step-out of physical layer |
| EA201170951A1 (en) * | 2009-01-20 | 2012-02-28 | Шарп Кабусики Кайся | DEVICE OF MOBILE STATION, DEVICE OF BASIC STATION AND METHOD FOR DETERMINING THE SYNCHRONIZATION OF A RADIOLINE |
-
2013
- 2013-01-09 CN CN201380069833.7A patent/CN104904293B/en active Active
- 2013-01-09 WO PCT/CN2013/070248 patent/WO2014107847A1/en active Application Filing
- 2013-12-12 TW TW102145853A patent/TW201438483A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128002A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for asynchronization and synchronization detection of wireless link |
| US20110263245A1 (en) * | 2008-11-04 | 2011-10-27 | Ntt Docomo, Inc. | Mobile station and mobile communication method |
| US20120108177A1 (en) * | 2010-10-29 | 2012-05-03 | Samsung Electronics Co., Ltd. | Apparatus and method for channel measurement in radio link monitoring in a wireless network |
| CN102355338A (en) * | 2011-08-11 | 2012-02-15 | 电信科学技术研究院 | Method and device for transmitting channel information |
Non-Patent Citations (2)
| Title |
|---|
| 3GPP: "Evolved Universal Terrestrial Radio Access (E-UTRA)；Physical layer procedures", 《3GPP TS 36.213 V11.1.0》 * |
| 3GPP: "Evolved Universal Terrestrial Radio Access (E-UTRA)；Requirements for support of radio resource management", 《3GPP TS 36.133 V11.3.0》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018228045A1 (en) * | 2017-06-16 | 2018-12-20 | 电信科学技术研究院有限公司 | Radio link monitoring method and apparatus |
| TWI716688B (en) * | 2017-06-16 | 2021-01-21 | 大陸商電信科學技術研究院有限公司 | Method and device for monitoring radio link |
| US11218982B2 (en) | 2017-06-16 | 2022-01-04 | Datang Mobile Communications Equipment Co., Ltd. | Radio link monitoring method and apparatus |
| CN109644356A (en) * | 2018-02-12 | 2019-04-16 | Oppo广东移动通信有限公司 | The method and apparatus for transmitting information |
| CN109644356B (en) * | 2018-02-12 | 2021-05-25 | Oppo广东移动通信有限公司 | Method and device for transmitting information |
| CN113785509A (en) * | 2019-05-01 | 2021-12-10 | 苹果公司 | Radio link monitoring beam management in NR for URLLC |
| CN111144201A (en) * | 2019-11-13 | 2020-05-12 | 创达特（苏州）科技有限责任公司 | Signal pattern recognition method and device |
| CN111144201B (en) * | 2019-11-13 | 2023-06-30 | 创耀(苏州)通信科技股份有限公司 | Signal pattern recognition method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104904293B (en) | 2019-03-12 |
| WO2014107847A1 (en) | 2014-07-17 |
| TW201438483A (en) | 2014-10-01 |
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